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php-5.6.2-new-mm-patch.txt
diff -c -r php-5.6.2-orig/Zend/zend.h php-5.6.2/Zend/zend.h
*** php-5.6.2-orig/Zend/zend.h 2014-10-15 21:59:32.000000000 +0900
--- php-5.6.2/Zend/zend.h 2014-11-02 13:26:51.000000000 +0900
***************
*** 291,298 ****
--- 291,300 ----
#define INTERNAL_FUNCTION_PARAM_PASSTHRU ht, return_value, return_value_ptr, this_ptr, return_value_used TSRMLS_CC
#if defined(__GNUC__) && __GNUC__ >= 3 && !defined(__INTEL_COMPILER) && !defined(DARWIN) && !defined(__hpux) && !defined(_AIX) && !defined(__osf__)
+ # define ZEND_NORETURN __attribute__((noreturn))
void zend_error_noreturn(int type, const char *format, ...) __attribute__ ((noreturn));
#else
+ # define ZEND_NORETURN
# define zend_error_noreturn zend_error
#endif
diff -c -r php-5.6.2-orig/Zend/zend_alloc.c php-5.6.2/Zend/zend_alloc.c
*** php-5.6.2-orig/Zend/zend_alloc.c 2014-10-15 21:59:32.000000000 +0900
--- php-5.6.2/Zend/zend_alloc.c 2014-11-02 13:27:17.000000000 +0900
***************
*** 20,25 ****
--- 20,58 ----
/* $Id$ */
+ /*
+ * zend_alloc is designed to be a modern CPU cache friendly memory manager
+ * for PHP. Most ideas are taken from jemalloc and tcmalloc implementations.
+ *
+ * All allocations are split into 3 categories:
+ *
+ * Huge - the size is greater than CHUNK size (~2M by default), allocation is
+ * performed using mmap(). The result is aligned on 2M boundary.
+ *
+ * Large - a number of 4096K pages inside a CHUNK. Large blocks
+ * are always alligned on page boundary.
+ *
+ * Small - less than 3/4 of page size. Small sizes are rounded up to nearest
+ * greater predefined small size (there are 30 predefined sizes:
+ * 8, 16, 24, 32, ... 3072). Small blocks are allocated from
+ * RUNs. Each RUN is allocated as a single or few following pages.
+ * Allocation inside RUNs implemented using linked list of free
+ * elements. The result is aligned to 8 bytes.
+ *
+ * zend_alloc allocates memory from OS by CHUNKs, these CHUNKs and huge memory
+ * blocks are always aligned to CHUNK boundary. So it's very easy to determine
+ * the CHUNK owning the certain pointer. Regular CHUNKs reserve a single
+ * page at start for special purpose. It contains bitset of free pages,
+ * few bitset for available runs of predefined small sizes, map of pages that
+ * keeps information about usage of each page in this CHUNK, etc.
+ *
+ * zend_alloc provides familiar emalloc/efree/erealloc API, but in addition it
+ * provides specialized and optimized routines to allocate blocks of predefined
+ * sizes (e.g. emalloc_2(), emallc_4(), ..., emalloc_large(), etc)
+ * The library uses C preprocessor tricks that substitute calls to emalloc()
+ * with more specialized routines when the requested size is known.
+ */
+
#include "zend.h"
#include "zend_alloc.h"
#include "zend_globals.h"
***************
*** 37,64 ****
# include <process.h>
#endif
! #ifndef ZEND_MM_HEAP_PROTECTION
! # define ZEND_MM_HEAP_PROTECTION ZEND_DEBUG
#endif
! #ifndef ZEND_MM_SAFE_UNLINKING
! # define ZEND_MM_SAFE_UNLINKING 1
#endif
! #ifndef ZEND_MM_COOKIES
! # define ZEND_MM_COOKIES ZEND_DEBUG
#endif
#ifdef _WIN64
# define PTR_FMT "0x%0.16I64x"
! /*
! #elif sizeof(long) == 8
# define PTR_FMT "0x%0.16lx"
- */
#else
# define PTR_FMT "0x%0.8lx"
#endif
#if ZEND_DEBUG
void zend_debug_alloc_output(char *format, ...)
{
--- 70,319 ----
# include <process.h>
#endif
! #include <stdio.h>
! #include <stdlib.h>
! #include <string.h>
!
! #include <sys/types.h>
! #include <sys/stat.h>
! #if HAVE_LIMITS_H
! #include <limits.h>
! #endif
! #include <fcntl.h>
! #include <errno.h>
!
! #ifndef _WIN32
! # ifdef HAVE_MREMAP
! # ifndef _GNU_SOURCE
! # define _GNU_SOURCE
! # endif
! # ifndef __USE_GNU
! # define __USE_GNU
! # endif
! # endif
! # include <sys/mman.h>
! # ifndef MAP_ANON
! # ifdef MAP_ANONYMOUS
! # define MAP_ANON MAP_ANONYMOUS
! # endif
! # endif
! # ifndef MREMAP_MAYMOVE
! # define MREMAP_MAYMOVE 0
! # endif
! # ifndef MAP_FAILED
! # define MAP_FAILED ((void*)-1)
! # endif
! # ifndef MAP_POPULATE
! # define MAP_POPULATE 0
! #endif
#endif
! #ifndef ZEND_MM_STAT
! # define ZEND_MM_STAT 1 /* track current and peak memory usage */
! #endif
! #ifndef ZEND_MM_LIMIT
! # define ZEND_MM_LIMIT 1 /* support for user-defined memory limit */
! #endif
! #ifndef ZEND_MM_CUSTOM
! # define ZEND_MM_CUSTOM 1 /* support for custom memory allocator */
! /* USE_ZEND_ALLOC=0 may switch to system malloc() */
! #endif
! #ifndef ZEND_MM_ERROR
! # define ZEND_MM_ERROR 1 /* report system errors */
#endif
! #ifndef ZEND_MM_CHECK
! # define ZEND_MM_CHECK(condition, message) do { \
! if (UNEXPECTED(!(condition))) { \
! zend_mm_panic(message); \
! } \
! } while (0)
#endif
+ typedef unsigned int zend_mm_page_info; /* 4-byte integer */
+ typedef unsigned long zend_mm_bitset; /* 4-byte or 8-byte integer */
+
+ #define ZEND_MM_ALIGNED_OFFSET(size, alignment) \
+ (((size_t)(size)) & ((alignment) - 1))
+ #define ZEND_MM_ALIGNED_BASE(size, alignment) \
+ (((size_t)(size)) & ~((alignment) - 1))
+ #define ZEND_MM_ALIGNED_SIZE_EX(size, alignment) \
+ (((size_t)(size) + ((alignment) - 1)) & ~((alignment) - 1))
+ #define ZEND_MM_SIZE_TO_NUM(size, alignment) \
+ (((size_t)(size) + ((alignment) - 1)) / (alignment))
+
+ #define ZEND_MM_BITSET_LEN (sizeof(zend_mm_bitset) * 8) /* 32 or 64 */
+ #define ZEND_MM_PAGE_MAP_LEN (ZEND_MM_PAGES / ZEND_MM_BITSET_LEN) /* 16 or 8 */
+ #define ZEND_MM_ELEMENTS_LEN (ZEND_MM_PAGE_SIZE / ZEND_MM_MIN_SMALL_SIZE / ZEND_MM_BITSET_LEN)
+
+ typedef zend_mm_bitset zend_mm_page_map[ZEND_MM_PAGE_MAP_LEN]; /* 64B */
+
+ #define ZEND_MM_IS_FRUM 0x00000000
+ #define ZEND_MM_IS_LRUN 0x40000000
+ #define ZEND_MM_IS_SRUN 0x80000000
+
+ #define ZEND_MM_LRUN_PAGES_MASK 0x000003ff
+ #define ZEND_MM_LRUN_PAGES_OFFSET 0
+
+ #define ZEND_MM_SRUN_BIN_NUM_MASK 0x0000001f
+ #define ZEND_MM_SRUN_BIN_NUM_OFFSET 0
+
+ #define ZEND_MM_LRUN_PAGES(info) (((info) & ZEND_MM_LRUN_PAGES_MASK) >> ZEND_MM_LRUN_PAGES_OFFSET)
+ #define ZEND_MM_SRUN_BIN_NUM(info) (((info) & ZEND_MM_SRUN_BIN_NUM_MASK) >> ZEND_MM_SRUN_BIN_NUM_OFFSET)
+
+ #define ZEND_MM_FRUN() ZEND_MM_IS_FRUN
+ #define ZEND_MM_LRUN(count) (ZEND_MM_IS_LRUN | ((count) << ZEND_MM_LRUN_PAGES_OFFSET))
+ #define ZEND_MM_SRUN(bin_num) (ZEND_MM_IS_SRUN | ((bin_num) << ZEND_MM_SRUN_BIN_NUM_OFFSET))
+
+ #define ZEND_MM_BINS 30
+
+ typedef struct _zend_mm_page zend_mm_page;
+ typedef struct _zend_mm_bin zend_mm_bin;
+ typedef struct _zend_mm_free_slot zend_mm_free_slot;
+ typedef struct _zend_mm_chunk zend_mm_chunk;
+ typedef struct _zend_mm_huge_list zend_mm_huge_list;
+
#ifdef _WIN64
# define PTR_FMT "0x%0.16I64x"
! #elif SIZEOF_LONG == 8
# define PTR_FMT "0x%0.16lx"
#else
# define PTR_FMT "0x%0.8lx"
#endif
+ /*
+ * Memory is retrived from OS by chunks of fixed size 2MB.
+ * Inside chunk it's managed by pages of fixed size 4096B.
+ * So each chunk consists from 512 pages.
+ * The first page of each chunk is reseved for chunk header.
+ * It contains service information about all pages.
+ *
+ * free_pages - current number of free pages in this chunk
+ *
+ * free_tail - number of continuous free pages at the end of chunk
+ *
+ * free_map - bitset (a bit for each page). The bit is set if the corresponding
+ * page is allocated. Allocator for "lage sizes" may easily find a
+ * free page (or a continuous number of pages) searching for zero
+ * bits.
+ *
+ * map - contains service information for each page. (32-bits for each
+ * page).
+ * usage:
+ * (2 bits)
+ * FRUN - free page,
+ * LRUN - first page of "large" allocation
+ * SRUN - first page of a bin used for "small" allocation
+ *
+ * lrun_pages:
+ * (10 bits) number of allocated pages
+ *
+ * srun_bin_num:
+ * (5 bits) bin number (e.g. 0 for sizes 0-2, 1 for 3-4,
+ * 2 for 5-8, 3 for 9-16 etc) see zend_alloc_sizes.h
+ */
+
+ struct _zend_mm_heap {
+ #if ZEND_MM_CUSTOM
+ int use_custom_heap;
+ #endif
+ #if ZEND_MM_STAT
+ size_t size; /* current memory usage */
+ size_t peak; /* peak memory usage */
+ #endif
+ zend_mm_free_slot *free_slot[ZEND_MM_BINS]; /* free lists for small sizes */
+ #if ZEND_MM_STAT || ZEND_MM_LIMIT
+ size_t real_size; /* current size of allocated pages */
+ #endif
+ #if ZEND_MM_STAT
+ size_t real_peak; /* peak size of allocated pages */
+ #endif
+ #if ZEND_MM_LIMIT
+ size_t limit; /* memory limit */
+ int overflow; /* memory overflow flag */
+ #endif
+
+ zend_mm_huge_list *huge_list; /* list of huge allocated blocks */
+
+ zend_mm_chunk *main_chunk;
+ zend_mm_chunk *cached_chunks; /* list of unused chunks */
+ int chunks_count; /* number of alocated chunks */
+ int peak_chunks_count; /* peak number of allocated chunks for current request */
+ int cached_chunks_count; /* number of cached chunks */
+ double avg_chunks_count; /* average number of chunks allocated per request */
+ #if ZEND_MM_CUSTOM
+ void *(*_malloc)(size_t);
+ void (*_free)(void*);
+ void *(*_realloc)(void*, size_t);
+ #endif
+ };
+
+ struct _zend_mm_chunk {
+ zend_mm_heap *heap;
+ zend_mm_chunk *next;
+ zend_mm_chunk *prev;
+ int free_pages; /* number of free pages */
+ int free_tail; /* number of free pages at the end of chunk */
+ int num;
+ char reserve[64 - (sizeof(void*) * 3 + sizeof(int) * 3)];
+ zend_mm_heap heap_slot; /* used only in main chunk */
+ zend_mm_page_map free_map; /* 512 bits or 64 bytes */
+ zend_mm_page_info map[ZEND_MM_PAGES]; /* 2 KB = 512 * 4 */
+ };
+
+ struct _zend_mm_page {
+ char bytes[ZEND_MM_PAGE_SIZE];
+ };
+
+ /*
+ * bin - is one or few continuous pages (up to 8) used for alocation of
+ * a particular "small size".
+ */
+ struct _zend_mm_bin {
+ char bytes[ZEND_MM_PAGE_SIZE * 8];
+ };
+
+ #if ZEND_DEBUG
+ typedef struct _zend_mm_debug_info {
+ size_t size;
+ const char *filename;
+ const char *orig_filename;
+ uint lineno;
+ uint orig_lineno;
+ } zend_mm_debug_info;
+ #endif
+
+ struct _zend_mm_free_slot {
+ zend_mm_free_slot *next_free_slot;
+ };
+
+ struct _zend_mm_huge_list {
+ void *ptr;
+ size_t size;
+ zend_mm_huge_list *next;
+ #if ZEND_DEBUG
+ zend_mm_debug_info dbg;
+ #endif
+ };
+
+ #define ZEND_MM_PAGE_ADDR(chunk, page_num) \
+ ((void*)(((zend_mm_page*)(chunk)) + (page_num)))
+
+ #define _BIN_DATA_SIZE(num, size, elements, pages, x, y) size,
+ static const unsigned int bin_data_size[] = {
+ ZEND_MM_BINS_INFO(_BIN_DATA_SIZE, x, y)
+ };
+
+ #define _BIN_DATA_ELEMENTS(num, size, elements, pages, x, y) elements,
+ static const int bin_elements[] = {
+ ZEND_MM_BINS_INFO(_BIN_DATA_ELEMENTS, x, y)
+ };
+
+ #define _BIN_DATA_PAGES(num, size, elements, pages, x, y) pages,
+ static const int bin_pages[] = {
+ ZEND_MM_BINS_INFO(_BIN_DATA_PAGES, x, y)
+ };
+
#if ZEND_DEBUG
void zend_debug_alloc_output(char *format, ...)
{
***************
*** 77,87 ****
}
#endif
! #if (defined (__GNUC__) && __GNUC__ > 2 ) && !defined(__INTEL_COMPILER) && !defined(DARWIN) && !defined(__hpux) && !defined(_AIX)
! static void zend_mm_panic(const char *message) __attribute__ ((noreturn));
! #endif
!
! static void zend_mm_panic(const char *message)
{
fprintf(stderr, "%s\n", message);
/* See http://support.microsoft.com/kb/190351 */
--- 332,338 ----
}
#endif
! static ZEND_NORETURN void zend_mm_panic(const char *message)
{
fprintf(stderr, "%s\n", message);
/* See http://support.microsoft.com/kb/190351 */
***************
*** 94,2401 ****
exit(1);
}
! /*******************/
! /* Storage Manager */
! /*******************/
!
! #ifdef ZEND_WIN32
! # define HAVE_MEM_WIN32 /* use VirtualAlloc() to allocate memory */
! #endif
! #define HAVE_MEM_MALLOC /* use malloc() to allocate segments */
!
! #include <sys/types.h>
! #include <sys/stat.h>
! #if HAVE_LIMITS_H
! #include <limits.h>
! #endif
! #include <fcntl.h>
! #include <errno.h>
!
! #if defined(HAVE_MEM_MMAP_ANON) || defined(HAVE_MEM_MMAP_ZERO)
! # ifdef HAVE_MREMAP
! # ifndef _GNU_SOURCE
! # define _GNU_SOURCE
! # endif
! # ifndef __USE_GNU
! # define __USE_GNU
! # endif
! # endif
! # include <sys/mman.h>
! # ifndef MAP_ANON
! # ifdef MAP_ANONYMOUS
! # define MAP_ANON MAP_ANONYMOUS
! # endif
! # endif
! # ifndef MREMAP_MAYMOVE
! # define MREMAP_MAYMOVE 0
! # endif
! # ifndef MAP_FAILED
! # define MAP_FAILED ((void*)-1)
! # endif
#endif
!
! static zend_mm_storage* zend_mm_mem_dummy_init(void *params)
! {
! return malloc(sizeof(zend_mm_storage));
! }
!
! static void zend_mm_mem_dummy_dtor(zend_mm_storage *storage)
{
! free(storage);
! }
! static void zend_mm_mem_dummy_compact(zend_mm_storage *storage)
! {
}
! #if defined(HAVE_MEM_MMAP_ANON) || defined(HAVE_MEM_MMAP_ZERO)
! static zend_mm_segment* zend_mm_mem_mmap_realloc(zend_mm_storage *storage, zend_mm_segment* segment, size_t size)
{
! zend_mm_segment *ret;
! #ifdef HAVE_MREMAP
! #if defined(__NetBSD__)
! /* NetBSD 5 supports mremap but takes an extra newp argument */
! ret = (zend_mm_segment*)mremap(segment, segment->size, segment, size, MREMAP_MAYMOVE);
#else
! ret = (zend_mm_segment*)mremap(segment, segment->size, size, MREMAP_MAYMOVE);
#endif
! if (ret == MAP_FAILED) {
#endif
- ret = storage->handlers->_alloc(storage, size);
- if (ret) {
- memcpy(ret, segment, size > segment->size ? segment->size : size);
- storage->handlers->_free(storage, segment);
}
! #ifdef HAVE_MREMAP
}
#endif
- return ret;
}
! static void zend_mm_mem_mmap_free(zend_mm_storage *storage, zend_mm_segment* segment)
{
! munmap((void*)segment, segment->size);
! }
#endif
!
! #ifdef HAVE_MEM_MMAP_ANON
!
! static zend_mm_segment* zend_mm_mem_mmap_anon_alloc(zend_mm_storage *storage, size_t size)
! {
! zend_mm_segment *ret = (zend_mm_segment*)mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
! if (ret == MAP_FAILED) {
! ret = NULL;
}
! return ret;
! }
!
! # define ZEND_MM_MEM_MMAP_ANON_DSC {"mmap_anon", zend_mm_mem_dummy_init, zend_mm_mem_dummy_dtor, zend_mm_mem_dummy_compact, zend_mm_mem_mmap_anon_alloc, zend_mm_mem_mmap_realloc, zend_mm_mem_mmap_free}
#endif
-
- #ifdef HAVE_MEM_MMAP_ZERO
-
- static int zend_mm_dev_zero_fd = -1;
-
- static zend_mm_storage* zend_mm_mem_mmap_zero_init(void *params)
- {
- if (zend_mm_dev_zero_fd == -1) {
- zend_mm_dev_zero_fd = open("/dev/zero", O_RDWR, S_IRUSR | S_IWUSR);
- }
- if (zend_mm_dev_zero_fd >= 0) {
- return malloc(sizeof(zend_mm_storage));
- } else {
return NULL;
}
}
! static void zend_mm_mem_mmap_zero_dtor(zend_mm_storage *storage)
{
! close(zend_mm_dev_zero_fd);
! free(storage);
}
! static zend_mm_segment* zend_mm_mem_mmap_zero_alloc(zend_mm_storage *storage, size_t size)
{
! zend_mm_segment *ret = (zend_mm_segment*)mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE, zend_mm_dev_zero_fd, 0);
! if (ret == MAP_FAILED) {
! ret = NULL;
! }
! return ret;
! }
! # define ZEND_MM_MEM_MMAP_ZERO_DSC {"mmap_zero", zend_mm_mem_mmap_zero_init, zend_mm_mem_mmap_zero_dtor, zend_mm_mem_dummy_compact, zend_mm_mem_mmap_zero_alloc, zend_mm_mem_mmap_realloc, zend_mm_mem_mmap_free}
#endif
! #ifdef HAVE_MEM_WIN32
!
! static zend_mm_storage* zend_mm_mem_win32_init(void *params)
{
! HANDLE heap = HeapCreate(HEAP_NO_SERIALIZE, 0, 0);
! zend_mm_storage* storage;
! if (heap == NULL) {
! return NULL;
! }
! storage = (zend_mm_storage*)malloc(sizeof(zend_mm_storage));
! if (storage == NULL) {
! HeapDestroy(heap);
! return NULL;
}
! storage->data = (void*) heap;
! return storage;
}
! static void zend_mm_mem_win32_dtor(zend_mm_storage *storage)
{
! HeapDestroy((HANDLE)storage->data);
! free(storage);
}
! static void zend_mm_mem_win32_compact(zend_mm_storage *storage)
{
! HeapDestroy((HANDLE)storage->data);
! storage->data = (void*)HeapCreate(HEAP_NO_SERIALIZE, 0, 0);
}
! static zend_mm_segment* zend_mm_mem_win32_alloc(zend_mm_storage *storage, size_t size)
{
! return (zend_mm_segment*) HeapAlloc((HANDLE)storage->data, HEAP_NO_SERIALIZE, size);
}
! static void zend_mm_mem_win32_free(zend_mm_storage *storage, zend_mm_segment* segment)
{
! HeapFree((HANDLE)storage->data, HEAP_NO_SERIALIZE, segment);
}
! static zend_mm_segment* zend_mm_mem_win32_realloc(zend_mm_storage *storage, zend_mm_segment* segment, size_t size)
{
! return (zend_mm_segment*) HeapReAlloc((HANDLE)storage->data, HEAP_NO_SERIALIZE, segment, size);
}
! # define ZEND_MM_MEM_WIN32_DSC {"win32", zend_mm_mem_win32_init, zend_mm_mem_win32_dtor, zend_mm_mem_win32_compact, zend_mm_mem_win32_alloc, zend_mm_mem_win32_realloc, zend_mm_mem_win32_free}
!
! #endif
!
! #ifdef HAVE_MEM_MALLOC
!
! static zend_mm_segment* zend_mm_mem_malloc_alloc(zend_mm_storage *storage, size_t size)
{
! return (zend_mm_segment*)malloc(size);
}
! static zend_mm_segment* zend_mm_mem_malloc_realloc(zend_mm_storage *storage, zend_mm_segment *ptr, size_t size)
{
! return (zend_mm_segment*)realloc(ptr, size);
}
! static void zend_mm_mem_malloc_free(zend_mm_storage *storage, zend_mm_segment *ptr)
{
! free(ptr);
}
! # define ZEND_MM_MEM_MALLOC_DSC {"malloc", zend_mm_mem_dummy_init, zend_mm_mem_dummy_dtor, zend_mm_mem_dummy_compact, zend_mm_mem_malloc_alloc, zend_mm_mem_malloc_realloc, zend_mm_mem_malloc_free}
!
! #endif
!
! static const zend_mm_mem_handlers mem_handlers[] = {
! #ifdef HAVE_MEM_WIN32
! ZEND_MM_MEM_WIN32_DSC,
! #endif
! #ifdef HAVE_MEM_MALLOC
! ZEND_MM_MEM_MALLOC_DSC,
! #endif
! #ifdef HAVE_MEM_MMAP_ANON
! ZEND_MM_MEM_MMAP_ANON_DSC,
! #endif
! #ifdef HAVE_MEM_MMAP_ZERO
! ZEND_MM_MEM_MMAP_ZERO_DSC,
! #endif
! {NULL, NULL, NULL, NULL, NULL, NULL}
! };
!
! # define ZEND_MM_STORAGE_DTOR() heap->storage->handlers->dtor(heap->storage)
! # define ZEND_MM_STORAGE_ALLOC(size) heap->storage->handlers->_alloc(heap->storage, size)
! # define ZEND_MM_STORAGE_REALLOC(ptr, size) heap->storage->handlers->_realloc(heap->storage, ptr, size)
! # define ZEND_MM_STORAGE_FREE(ptr) heap->storage->handlers->_free(heap->storage, ptr)
!
! /****************/
! /* Heap Manager */
! /****************/
!
! #define MEM_BLOCK_VALID 0x7312F8DC
! #define MEM_BLOCK_FREED 0x99954317
! #define MEM_BLOCK_CACHED 0xFB8277DC
! #define MEM_BLOCK_GUARD 0x2A8FCC84
! #define MEM_BLOCK_LEAK 0x6C5E8F2D
!
! /* mm block type */
! typedef struct _zend_mm_block_info {
! #if ZEND_MM_COOKIES
! size_t _cookie;
! #endif
! size_t _size;
! size_t _prev;
! } zend_mm_block_info;
!
! #if ZEND_DEBUG
!
! typedef struct _zend_mm_debug_info {
! const char *filename;
! uint lineno;
! const char *orig_filename;
! uint orig_lineno;
! size_t size;
! #if ZEND_MM_HEAP_PROTECTION
! unsigned int start_magic;
! #endif
! } zend_mm_debug_info;
! #elif ZEND_MM_HEAP_PROTECTION
! typedef struct _zend_mm_debug_info {
! size_t size;
! unsigned int start_magic;
! } zend_mm_debug_info;
#endif
! typedef struct _zend_mm_block {
! zend_mm_block_info info;
! #if ZEND_DEBUG
! unsigned int magic;
! # ifdef ZTS
! THREAD_T thread_id;
! # endif
! zend_mm_debug_info debug;
! #elif ZEND_MM_HEAP_PROTECTION
! zend_mm_debug_info debug;
! #endif
! } zend_mm_block;
!
! typedef struct _zend_mm_small_free_block {
! zend_mm_block_info info;
! #if ZEND_DEBUG
! unsigned int magic;
! # ifdef ZTS
! THREAD_T thread_id;
! # endif
! #endif
! struct _zend_mm_free_block *prev_free_block;
! struct _zend_mm_free_block *next_free_block;
! } zend_mm_small_free_block;
!
! typedef struct _zend_mm_free_block {
! zend_mm_block_info info;
! #if ZEND_DEBUG
! unsigned int magic;
! # ifdef ZTS
! THREAD_T thread_id;
# endif
#endif
! struct _zend_mm_free_block *prev_free_block;
! struct _zend_mm_free_block *next_free_block;
!
! struct _zend_mm_free_block **parent;
! struct _zend_mm_free_block *child[2];
! } zend_mm_free_block;
!
! #define ZEND_MM_NUM_BUCKETS (sizeof(size_t) << 3)
!
! #define ZEND_MM_CACHE 1
! #define ZEND_MM_CACHE_SIZE (ZEND_MM_NUM_BUCKETS * 4 * 1024)
!
! #ifndef ZEND_MM_CACHE_STAT
! # define ZEND_MM_CACHE_STAT 0
! #endif
!
! struct _zend_mm_heap {
! int use_zend_alloc;
! void *(*_malloc)(size_t);
! void (*_free)(void*);
! void *(*_realloc)(void*, size_t);
! size_t free_bitmap;
! size_t large_free_bitmap;
! size_t block_size;
! size_t compact_size;
! zend_mm_segment *segments_list;
! zend_mm_storage *storage;
! size_t real_size;
! size_t real_peak;
! size_t limit;
! size_t size;
! size_t peak;
! size_t reserve_size;
! void *reserve;
! int overflow;
! int internal;
! #if ZEND_MM_CACHE
! unsigned int cached;
! zend_mm_free_block *cache[ZEND_MM_NUM_BUCKETS];
! #endif
! zend_mm_free_block *free_buckets[ZEND_MM_NUM_BUCKETS*2];
! zend_mm_free_block *large_free_buckets[ZEND_MM_NUM_BUCKETS];
! zend_mm_free_block *rest_buckets[2];
! int rest_count;
! #if ZEND_MM_CACHE_STAT
! struct {
! int count;
! int max_count;
! int hit;
! int miss;
! } cache_stat[ZEND_MM_NUM_BUCKETS+1];
! #endif
! };
!
! #define ZEND_MM_SMALL_FREE_BUCKET(heap, index) \
! (zend_mm_free_block*) ((char*)&heap->free_buckets[index * 2] + \
! sizeof(zend_mm_free_block*) * 2 - \
! sizeof(zend_mm_small_free_block))
!
! #define ZEND_MM_REST_BUCKET(heap) \
! (zend_mm_free_block*)((char*)&heap->rest_buckets[0] + \
! sizeof(zend_mm_free_block*) * 2 - \
! sizeof(zend_mm_small_free_block))
!
! #define ZEND_MM_REST_BLOCK ((zend_mm_free_block**)(zend_uintptr_t)(1))
!
! #define ZEND_MM_MAX_REST_BLOCKS 16
!
! #if ZEND_MM_COOKIES
! static unsigned int _zend_mm_cookie = 0;
! # define ZEND_MM_COOKIE(block) \
! (((size_t)(block)) ^ _zend_mm_cookie)
! # define ZEND_MM_SET_COOKIE(block) \
! (block)->info._cookie = ZEND_MM_COOKIE(block)
! # define ZEND_MM_CHECK_COOKIE(block) \
! if (UNEXPECTED((block)->info._cookie != ZEND_MM_COOKIE(block))) { \
! zend_mm_panic("zend_mm_heap corrupted"); \
! }
#else
! # define ZEND_MM_SET_COOKIE(block)
! # define ZEND_MM_CHECK_COOKIE(block)
#endif
! /* Default memory segment size */
! #define ZEND_MM_SEG_SIZE (256 * 1024)
! /* Reserved space for error reporting in case of memory overflow */
! #define ZEND_MM_RESERVE_SIZE (8*1024)
!
! #ifdef _WIN64
! # define ZEND_MM_LONG_CONST(x) (x##i64)
#else
! # define ZEND_MM_LONG_CONST(x) (x##L)
#endif
! #define ZEND_MM_TYPE_MASK ZEND_MM_LONG_CONST(0x3)
!
! #define ZEND_MM_FREE_BLOCK ZEND_MM_LONG_CONST(0x0)
! #define ZEND_MM_USED_BLOCK ZEND_MM_LONG_CONST(0x1)
! #define ZEND_MM_GUARD_BLOCK ZEND_MM_LONG_CONST(0x3)
!
! #define ZEND_MM_BLOCK(b, type, size) do { \
! size_t _size = (size); \
! (b)->info._size = (type) | _size; \
! ZEND_MM_BLOCK_AT(b, _size)->info._prev = (type) | _size; \
! ZEND_MM_SET_COOKIE(b); \
! } while (0);
! #define ZEND_MM_LAST_BLOCK(b) do { \
! (b)->info._size = ZEND_MM_GUARD_BLOCK | ZEND_MM_ALIGNED_HEADER_SIZE; \
! ZEND_MM_SET_MAGIC(b, MEM_BLOCK_GUARD); \
! } while (0);
! #define ZEND_MM_BLOCK_SIZE(b) ((b)->info._size & ~ZEND_MM_TYPE_MASK)
! #define ZEND_MM_IS_FREE_BLOCK(b) (!((b)->info._size & ZEND_MM_USED_BLOCK))
! #define ZEND_MM_IS_USED_BLOCK(b) ((b)->info._size & ZEND_MM_USED_BLOCK)
! #define ZEND_MM_IS_GUARD_BLOCK(b) (((b)->info._size & ZEND_MM_TYPE_MASK) == ZEND_MM_GUARD_BLOCK)
! #define ZEND_MM_NEXT_BLOCK(b) ZEND_MM_BLOCK_AT(b, ZEND_MM_BLOCK_SIZE(b))
! #define ZEND_MM_PREV_BLOCK(b) ZEND_MM_BLOCK_AT(b, -(ssize_t)((b)->info._prev & ~ZEND_MM_TYPE_MASK))
!
! #define ZEND_MM_PREV_BLOCK_IS_FREE(b) (!((b)->info._prev & ZEND_MM_USED_BLOCK))
!
! #define ZEND_MM_MARK_FIRST_BLOCK(b) ((b)->info._prev = ZEND_MM_GUARD_BLOCK)
! #define ZEND_MM_IS_FIRST_BLOCK(b) ((b)->info._prev == ZEND_MM_GUARD_BLOCK)
!
! /* optimized access */
! #define ZEND_MM_FREE_BLOCK_SIZE(b) (b)->info._size
!
! /* Aligned header size */
! #define ZEND_MM_ALIGNED_HEADER_SIZE ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_block))
! #define ZEND_MM_ALIGNED_FREE_HEADER_SIZE ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_small_free_block))
! #define ZEND_MM_MIN_ALLOC_BLOCK_SIZE ZEND_MM_ALIGNED_SIZE(ZEND_MM_ALIGNED_HEADER_SIZE + END_MAGIC_SIZE)
! #define ZEND_MM_ALIGNED_MIN_HEADER_SIZE (ZEND_MM_MIN_ALLOC_BLOCK_SIZE>ZEND_MM_ALIGNED_FREE_HEADER_SIZE?ZEND_MM_MIN_ALLOC_BLOCK_SIZE:ZEND_MM_ALIGNED_FREE_HEADER_SIZE)
! #define ZEND_MM_ALIGNED_SEGMENT_SIZE ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_segment))
!
! #define ZEND_MM_MIN_SIZE ((ZEND_MM_ALIGNED_MIN_HEADER_SIZE>(ZEND_MM_ALIGNED_HEADER_SIZE+END_MAGIC_SIZE))?(ZEND_MM_ALIGNED_MIN_HEADER_SIZE-(ZEND_MM_ALIGNED_HEADER_SIZE+END_MAGIC_SIZE)):0)
!
! #define ZEND_MM_MAX_SMALL_SIZE ((ZEND_MM_NUM_BUCKETS<<ZEND_MM_ALIGNMENT_LOG2)+ZEND_MM_ALIGNED_MIN_HEADER_SIZE)
!
! #define ZEND_MM_TRUE_SIZE(size) ((size<ZEND_MM_MIN_SIZE)?(ZEND_MM_ALIGNED_MIN_HEADER_SIZE):(ZEND_MM_ALIGNED_SIZE(size+ZEND_MM_ALIGNED_HEADER_SIZE+END_MAGIC_SIZE)))
!
! #define ZEND_MM_BUCKET_INDEX(true_size) ((true_size>>ZEND_MM_ALIGNMENT_LOG2)-(ZEND_MM_ALIGNED_MIN_HEADER_SIZE>>ZEND_MM_ALIGNMENT_LOG2))
!
! #define ZEND_MM_SMALL_SIZE(true_size) (true_size < ZEND_MM_MAX_SMALL_SIZE)
! /* Memory calculations */
! #define ZEND_MM_BLOCK_AT(blk, offset) ((zend_mm_block *) (((char *) (blk))+(offset)))
! #define ZEND_MM_DATA_OF(p) ((void *) (((char *) (p))+ZEND_MM_ALIGNED_HEADER_SIZE))
! #define ZEND_MM_HEADER_OF(blk) ZEND_MM_BLOCK_AT(blk, -(int)ZEND_MM_ALIGNED_HEADER_SIZE)
! /* Debug output */
#if ZEND_DEBUG
!
! # ifdef ZTS
! # define ZEND_MM_SET_THREAD_ID(block) \
! ((zend_mm_block*)(block))->thread_id = tsrm_thread_id()
! # define ZEND_MM_BAD_THREAD_ID(block) ((block)->thread_id != tsrm_thread_id())
! # else
! # define ZEND_MM_SET_THREAD_ID(block)
! # define ZEND_MM_BAD_THREAD_ID(block) 0
! # endif
!
! # define ZEND_MM_VALID_PTR(block) \
! zend_mm_check_ptr(heap, block, 1 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC)
!
! # define ZEND_MM_SET_MAGIC(block, val) do { \
! (block)->magic = (val); \
! } while (0)
!
! # define ZEND_MM_CHECK_MAGIC(block, val) do { \
! if ((block)->magic != (val)) { \
! zend_mm_panic("zend_mm_heap corrupted"); \
! } \
! } while (0)
!
! # define ZEND_MM_SET_DEBUG_INFO(block, __size, set_valid, set_thread) do { \
! ((zend_mm_block*)(block))->debug.filename = __zend_filename; \
! ((zend_mm_block*)(block))->debug.lineno = __zend_lineno; \
! ((zend_mm_block*)(block))->debug.orig_filename = __zend_orig_filename; \
! ((zend_mm_block*)(block))->debug.orig_lineno = __zend_orig_lineno; \
! ZEND_MM_SET_BLOCK_SIZE(block, __size); \
! if (set_valid) { \
! ZEND_MM_SET_MAGIC(block, MEM_BLOCK_VALID); \
! } \
! if (set_thread) { \
! ZEND_MM_SET_THREAD_ID(block); \
! } \
! } while (0)
!
#else
!
! # define ZEND_MM_VALID_PTR(ptr) EXPECTED(ptr != NULL)
!
! # define ZEND_MM_SET_MAGIC(block, val)
!
! # define ZEND_MM_CHECK_MAGIC(block, val)
!
! # define ZEND_MM_SET_DEBUG_INFO(block, __size, set_valid, set_thread) ZEND_MM_SET_BLOCK_SIZE(block, __size)
!
#endif
!
!
! #if ZEND_MM_HEAP_PROTECTION
!
! # define ZEND_MM_CHECK_PROTECTION(block) \
! do { \
! if ((block)->debug.start_magic != _mem_block_start_magic || \
! memcmp(ZEND_MM_END_MAGIC_PTR(block), &_mem_block_end_magic, END_MAGIC_SIZE) != 0) { \
! zend_mm_panic("zend_mm_heap corrupted"); \
! } \
! } while (0)
!
! # define ZEND_MM_END_MAGIC_PTR(block) \
! (((char*)(ZEND_MM_DATA_OF(block))) + ((zend_mm_block*)(block))->debug.size)
!
! # define END_MAGIC_SIZE sizeof(unsigned int)
!
! # define ZEND_MM_SET_BLOCK_SIZE(block, __size) do { \
! char *p; \
! ((zend_mm_block*)(block))->debug.size = (__size); \
! p = ZEND_MM_END_MAGIC_PTR(block); \
! ((zend_mm_block*)(block))->debug.start_magic = _mem_block_start_magic; \
! memcpy(p, &_mem_block_end_magic, END_MAGIC_SIZE); \
! } while (0)
!
! static unsigned int _mem_block_start_magic = 0;
! static unsigned int _mem_block_end_magic = 0;
!
! #else
!
! # if ZEND_DEBUG
! # define ZEND_MM_SET_BLOCK_SIZE(block, _size) \
! ((zend_mm_block*)(block))->debug.size = (_size)
! # else
! # define ZEND_MM_SET_BLOCK_SIZE(block, _size)
! # endif
!
! # define ZEND_MM_CHECK_PROTECTION(block)
!
! # define END_MAGIC_SIZE 0
!
#endif
- #if ZEND_MM_SAFE_UNLINKING
- # define ZEND_MM_CHECK_BLOCK_LINKAGE(block) \
- if (UNEXPECTED((block)->info._size != ZEND_MM_BLOCK_AT(block, ZEND_MM_FREE_BLOCK_SIZE(block))->info._prev) || \
- UNEXPECTED(!UNEXPECTED(ZEND_MM_IS_FIRST_BLOCK(block)) && \
- UNEXPECTED(ZEND_MM_PREV_BLOCK(block)->info._size != (block)->info._prev))) { \
- zend_mm_panic("zend_mm_heap corrupted"); \
- }
- #define ZEND_MM_CHECK_TREE(block) \
- if (UNEXPECTED(*((block)->parent) != (block))) { \
- zend_mm_panic("zend_mm_heap corrupted"); \
- }
- #else
- # define ZEND_MM_CHECK_BLOCK_LINKAGE(block)
- # define ZEND_MM_CHECK_TREE(block)
#endif
!
! #define ZEND_MM_LARGE_BUCKET_INDEX(S) zend_mm_high_bit(S)
!
! static void *_zend_mm_alloc_int(zend_mm_heap *heap, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE(2);
! static void _zend_mm_free_int(zend_mm_heap *heap, void *p ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
! static void *_zend_mm_realloc_int(zend_mm_heap *heap, void *p, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_ALLOC_SIZE(3);
!
! static inline unsigned int zend_mm_high_bit(size_t _size)
! {
! #if defined(__GNUC__) && (defined(__native_client__) || defined(i386))
! unsigned int n;
!
! __asm__("bsrl %1,%0\n\t" : "=r" (n) : "rm" (_size) : "cc");
! return n;
! #elif defined(__GNUC__) && defined(__x86_64__)
! unsigned long n;
!
! __asm__("bsr %1,%0\n\t" : "=r" (n) : "rm" (_size) : "cc");
! return (unsigned int)n;
! #elif defined(_MSC_VER) && defined(_M_IX86)
! __asm {
! bsr eax, _size
}
! #elif defined(__GNUC__) && (defined(__arm__) || defined(__aarch64__))
! return (8 * SIZEOF_SIZE_T - 1) - __builtin_clzl(_size);
! #else
! unsigned int n = 0;
! while (_size != 0) {
! _size = _size >> 1;
! n++;
}
! return n-1;
! #endif
}
! static inline unsigned int zend_mm_low_bit(size_t _size)
{
! #if defined(__GNUC__) && (defined(__native_client__) || defined(i386))
! unsigned int n;
!
! __asm__("bsfl %1,%0\n\t" : "=r" (n) : "rm" (_size) : "cc");
! return n;
! #elif defined(__GNUC__) && defined(__x86_64__)
! unsigned long n;
!
! __asm__("bsf %1,%0\n\t" : "=r" (n) : "rm" (_size) : "cc");
! return (unsigned int)n;
! #elif defined(_MSC_VER) && defined(_M_IX86)
! __asm {
! bsf eax, _size
! }
! #elif defined(__GNUC__) && (defined(__arm__) || defined(__aarch64__))
! return __builtin_ctzl(_size);
#else
! static const int offset[16] = {4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0};
! unsigned int n;
! unsigned int index = 0;
!
! n = offset[_size & 15];
! while (n == 4) {
! _size >>= 4;
! index += n;
! n = offset[_size & 15];
! }
!
! return index + n;
#endif
}
! static inline void zend_mm_add_to_free_list(zend_mm_heap *heap, zend_mm_free_block *mm_block)
{
! size_t size;
! size_t index;
!
! ZEND_MM_SET_MAGIC(mm_block, MEM_BLOCK_FREED);
!
! size = ZEND_MM_FREE_BLOCK_SIZE(mm_block);
! if (EXPECTED(!ZEND_MM_SMALL_SIZE(size))) {
! zend_mm_free_block **p;
!
! index = ZEND_MM_LARGE_BUCKET_INDEX(size);
! p = &heap->large_free_buckets[index];
! mm_block->child[0] = mm_block->child[1] = NULL;
! if (!*p) {
! *p = mm_block;
! mm_block->parent = p;
! mm_block->prev_free_block = mm_block->next_free_block = mm_block;
! heap->large_free_bitmap |= (ZEND_MM_LONG_CONST(1) << index);
} else {
! size_t m;
!
! for (m = size << (ZEND_MM_NUM_BUCKETS - index); ; m <<= 1) {
! zend_mm_free_block *prev = *p;
!
! if (ZEND_MM_FREE_BLOCK_SIZE(prev) != size) {
! p = &prev->child[(m >> (ZEND_MM_NUM_BUCKETS-1)) & 1];
! if (!*p) {
! *p = mm_block;
! mm_block->parent = p;
! mm_block->prev_free_block = mm_block->next_free_block = mm_block;
! break;
! }
! } else {
! zend_mm_free_block *next = prev->next_free_block;
!
! prev->next_free_block = next->prev_free_block = mm_block;
! mm_block->next_free_block = next;
! mm_block->prev_free_block = prev;
! mm_block->parent = NULL;
! break;
! }
}
}
- } else {
- zend_mm_free_block *prev, *next;
-
- index = ZEND_MM_BUCKET_INDEX(size);
-
- prev = ZEND_MM_SMALL_FREE_BUCKET(heap, index);
- if (prev->prev_free_block == prev) {
- heap->free_bitmap |= (ZEND_MM_LONG_CONST(1) << index);
- }
- next = prev->next_free_block;
-
- mm_block->prev_free_block = prev;
- mm_block->next_free_block = next;
- prev->next_free_block = next->prev_free_block = mm_block;
}
}
! static inline void zend_mm_remove_from_free_list(zend_mm_heap *heap, zend_mm_free_block *mm_block)
{
! zend_mm_free_block *prev = mm_block->prev_free_block;
! zend_mm_free_block *next = mm_block->next_free_block;
!
! ZEND_MM_CHECK_MAGIC(mm_block, MEM_BLOCK_FREED);
!
! if (EXPECTED(prev == mm_block)) {
! zend_mm_free_block **rp, **cp;
!
! #if ZEND_MM_SAFE_UNLINKING
! if (UNEXPECTED(next != mm_block)) {
! zend_mm_panic("zend_mm_heap corrupted");
! }
#endif
! rp = &mm_block->child[mm_block->child[1] != NULL];
! prev = *rp;
! if (EXPECTED(prev == NULL)) {
! size_t index = ZEND_MM_LARGE_BUCKET_INDEX(ZEND_MM_FREE_BLOCK_SIZE(mm_block));
!
! ZEND_MM_CHECK_TREE(mm_block);
! *mm_block->parent = NULL;
! if (mm_block->parent == &heap->large_free_buckets[index]) {
! heap->large_free_bitmap &= ~(ZEND_MM_LONG_CONST(1) << index);
! }
! } else {
! while (*(cp = &(prev->child[prev->child[1] != NULL])) != NULL) {
! prev = *cp;
! rp = cp;
! }
! *rp = NULL;
! subst_block:
! ZEND_MM_CHECK_TREE(mm_block);
! *mm_block->parent = prev;
! prev->parent = mm_block->parent;
! if ((prev->child[0] = mm_block->child[0])) {
! ZEND_MM_CHECK_TREE(prev->child[0]);
! prev->child[0]->parent = &prev->child[0];
! }
! if ((prev->child[1] = mm_block->child[1])) {
! ZEND_MM_CHECK_TREE(prev->child[1]);
! prev->child[1]->parent = &prev->child[1];
! }
! }
! } else {
!
! #if ZEND_MM_SAFE_UNLINKING
! if (UNEXPECTED(prev->next_free_block != mm_block) || UNEXPECTED(next->prev_free_block != mm_block)) {
! zend_mm_panic("zend_mm_heap corrupted");
! }
#endif
-
- prev->next_free_block = next;
- next->prev_free_block = prev;
-
- if (EXPECTED(ZEND_MM_SMALL_SIZE(ZEND_MM_FREE_BLOCK_SIZE(mm_block)))) {
- if (EXPECTED(prev == next)) {
- size_t index = ZEND_MM_BUCKET_INDEX(ZEND_MM_FREE_BLOCK_SIZE(mm_block));
-
- if (EXPECTED(heap->free_buckets[index*2] == heap->free_buckets[index*2+1])) {
- heap->free_bitmap &= ~(ZEND_MM_LONG_CONST(1) << index);
- }
- }
- } else if (UNEXPECTED(mm_block->parent == ZEND_MM_REST_BLOCK)) {
- heap->rest_count--;
- } else if (UNEXPECTED(mm_block->parent != NULL)) {
- goto subst_block;
- }
- }
}
! static inline void zend_mm_add_to_rest_list(zend_mm_heap *heap, zend_mm_free_block *mm_block)
! {
! zend_mm_free_block *prev, *next;
!
! while (heap->rest_count >= ZEND_MM_MAX_REST_BLOCKS) {
! zend_mm_free_block *p = heap->rest_buckets[1];
!
! if (!ZEND_MM_SMALL_SIZE(ZEND_MM_FREE_BLOCK_SIZE(p))) {
! heap->rest_count--;
! }
! prev = p->prev_free_block;
! next = p->next_free_block;
! prev->next_free_block = next;
! next->prev_free_block = prev;
! zend_mm_add_to_free_list(heap, p);
! }
!
! if (!ZEND_MM_SMALL_SIZE(ZEND_MM_FREE_BLOCK_SIZE(mm_block))) {
! mm_block->parent = ZEND_MM_REST_BLOCK;
! heap->rest_count++;
! }
!
! ZEND_MM_SET_MAGIC(mm_block, MEM_BLOCK_FREED);
! prev = heap->rest_buckets[0];
! next = prev->next_free_block;
! mm_block->prev_free_block = prev;
! mm_block->next_free_block = next;
! prev->next_free_block = next->prev_free_block = mm_block;
! }
! static inline void zend_mm_init(zend_mm_heap *heap)
{
! zend_mm_free_block* p;
! int i;
! heap->free_bitmap = 0;
! heap->large_free_bitmap = 0;
! #if ZEND_MM_CACHE
! heap->cached = 0;
! memset(heap->cache, 0, sizeof(heap->cache));
! #endif
! #if ZEND_MM_CACHE_STAT
! for (i = 0; i < ZEND_MM_NUM_BUCKETS; i++) {
! heap->cache_stat[i].count = 0;
! }
#endif
- p = ZEND_MM_SMALL_FREE_BUCKET(heap, 0);
- for (i = 0; i < ZEND_MM_NUM_BUCKETS; i++) {
- p->next_free_block = p;
- p->prev_free_block = p;
- p = (zend_mm_free_block*)((char*)p + sizeof(zend_mm_free_block*) * 2);
- heap->large_free_buckets[i] = NULL;
- }
- heap->rest_buckets[0] = heap->rest_buckets[1] = ZEND_MM_REST_BUCKET(heap);
- heap->rest_count = 0;
}
! static void zend_mm_del_segment(zend_mm_heap *heap, zend_mm_segment *segment)
! {
! zend_mm_segment **p = &heap->segments_list;
!
! while (*p != segment) {
! p = &(*p)->next_segment;
! }
! *p = segment->next_segment;
! heap->real_size -= segment->size;
! ZEND_MM_STORAGE_FREE(segment);
! }
! #if ZEND_MM_CACHE
! static void zend_mm_free_cache(zend_mm_heap *heap)
{
! int i;
!
! for (i = 0; i < ZEND_MM_NUM_BUCKETS; i++) {
! if (heap->cache[i]) {
! zend_mm_free_block *mm_block = heap->cache[i];
!
! while (mm_block) {
! size_t size = ZEND_MM_BLOCK_SIZE(mm_block);
! zend_mm_free_block *q = mm_block->prev_free_block;
! zend_mm_block *next_block = ZEND_MM_NEXT_BLOCK(mm_block);
!
! heap->cached -= size;
! if (ZEND_MM_PREV_BLOCK_IS_FREE(mm_block)) {
! mm_block = (zend_mm_free_block*)ZEND_MM_PREV_BLOCK(mm_block);
! size += ZEND_MM_FREE_BLOCK_SIZE(mm_block);
! zend_mm_remove_from_free_list(heap, (zend_mm_free_block *) mm_block);
! }
! if (ZEND_MM_IS_FREE_BLOCK(next_block)) {
! size += ZEND_MM_FREE_BLOCK_SIZE(next_block);
! zend_mm_remove_from_free_list(heap, (zend_mm_free_block *) next_block);
! }
! ZEND_MM_BLOCK(mm_block, ZEND_MM_FREE_BLOCK, size);
!
! if (ZEND_MM_IS_FIRST_BLOCK(mm_block) &&
! ZEND_MM_IS_GUARD_BLOCK(ZEND_MM_NEXT_BLOCK(mm_block))) {
! zend_mm_del_segment(heap, (zend_mm_segment *) ((char *)mm_block - ZEND_MM_ALIGNED_SEGMENT_SIZE));
! } else {
! zend_mm_add_to_free_list(heap, (zend_mm_free_block *) mm_block);
! }
!
! mm_block = q;
! }
! heap->cache[i] = NULL;
! #if ZEND_MM_CACHE_STAT
! heap->cache_stat[i].count = 0;
#endif
! }
}
- }
- #endif
-
- #if ZEND_MM_HEAP_PROTECTION || ZEND_MM_COOKIES
- static void zend_mm_random(unsigned char *buf, size_t size) /* {{{ */
- {
- size_t i = 0;
- unsigned char t;
! #ifdef ZEND_WIN32
! HCRYPTPROV hCryptProv;
! int has_context = 0;
!
! if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, 0)) {
! /* Could mean that the key container does not exist, let try
! again by asking for a new one */
! if (GetLastError() == NTE_BAD_KEYSET) {
! if (CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_NEWKEYSET)) {
! has_context = 1;
! }
! }
! } else {
! has_context = 1;
! }
! if (has_context) {
do {
! BOOL ret = CryptGenRandom(hCryptProv, size, buf);
! CryptReleaseContext(hCryptProv, 0);
! if (ret) {
! while (i < size && buf[i] != 0) {
! i++;
! }
! if (i == size) {
! return;
! }
! }
! } while (0);
}
- #elif defined(HAVE_DEV_URANDOM)
- int fd = open("/dev/urandom", 0);
! if (fd >= 0) {
! if (read(fd, buf, size) == size) {
! while (i < size && buf[i] != 0) {
! i++;
! }
! if (i == size) {
! close(fd);
! return;
! }
! }
! close(fd);
! }
! #endif
! t = (unsigned char)getpid();
! while (i < size) {
do {
! buf[i] = ((unsigned char)rand()) ^ t;
! } while (buf[i] == 0);
! t = buf[i++] << 1;
! }
! }
! /* }}} */
! #endif
!
! /* Notes:
! * - This function may alter the block_sizes values to match platform alignment
! * - This function does *not* perform sanity checks on the arguments
! */
! ZEND_API zend_mm_heap *zend_mm_startup_ex(const zend_mm_mem_handlers *handlers, size_t block_size, size_t reserve_size, int internal, void *params)
! {
! zend_mm_storage *storage;
! zend_mm_heap *heap;
!
! #if 0
! int i;
!
! printf("ZEND_MM_ALIGNMENT=%d\n", ZEND_MM_ALIGNMENT);
! printf("ZEND_MM_ALIGNMENT_LOG2=%d\n", ZEND_MM_ALIGNMENT_LOG2);
! printf("ZEND_MM_MIN_SIZE=%d\n", ZEND_MM_MIN_SIZE);
! printf("ZEND_MM_MAX_SMALL_SIZE=%d\n", ZEND_MM_MAX_SMALL_SIZE);
! printf("ZEND_MM_ALIGNED_HEADER_SIZE=%d\n", ZEND_MM_ALIGNED_HEADER_SIZE);
! printf("ZEND_MM_ALIGNED_FREE_HEADER_SIZE=%d\n", ZEND_MM_ALIGNED_FREE_HEADER_SIZE);
! printf("ZEND_MM_MIN_ALLOC_BLOCK_SIZE=%d\n", ZEND_MM_MIN_ALLOC_BLOCK_SIZE);
! printf("ZEND_MM_ALIGNED_MIN_HEADER_SIZE=%d\n", ZEND_MM_ALIGNED_MIN_HEADER_SIZE);
! printf("ZEND_MM_ALIGNED_SEGMENT_SIZE=%d\n", ZEND_MM_ALIGNED_SEGMENT_SIZE);
! for (i = 0; i < ZEND_MM_MAX_SMALL_SIZE; i++) {
! printf("%3d%c: %3ld %d %2ld\n", i, (i == ZEND_MM_MIN_SIZE?'*':' '), (long)ZEND_MM_TRUE_SIZE(i), ZEND_MM_SMALL_SIZE(ZEND_MM_TRUE_SIZE(i)), (long)ZEND_MM_BUCKET_INDEX(ZEND_MM_TRUE_SIZE(i)));
! }
! exit(0);
#endif
! #if ZEND_MM_HEAP_PROTECTION
! if (_mem_block_start_magic == 0) {
! zend_mm_random((unsigned char*)&_mem_block_start_magic, sizeof(_mem_block_start_magic));
! }
! if (_mem_block_end_magic == 0) {
! zend_mm_random((unsigned char*)&_mem_block_end_magic, sizeof(_mem_block_end_magic));
! }
! #endif
! #if ZEND_MM_COOKIES
! if (_zend_mm_cookie == 0) {
! zend_mm_random((unsigned char*)&_zend_mm_cookie, sizeof(_zend_mm_cookie));
! }
#endif
! if (zend_mm_low_bit(block_size) != zend_mm_high_bit(block_size)) {
! fprintf(stderr, "'block_size' must be a power of two\n");
! /* See http://support.microsoft.com/kb/190351 */
! #ifdef PHP_WIN32
! fflush(stderr);
! #endif
! exit(255);
! }
! storage = handlers->init(params);
! if (!storage) {
! fprintf(stderr, "Cannot initialize zend_mm storage [%s]\n", handlers->name);
! /* See http://support.microsoft.com/kb/190351 */
! #ifdef PHP_WIN32
! fflush(stderr);
! #endif
! exit(255);
! }
! storage->handlers = handlers;
! heap = malloc(sizeof(struct _zend_mm_heap));
! if (heap == NULL) {
! fprintf(stderr, "Cannot allocate heap for zend_mm storage [%s]\n", handlers->name);
! #ifdef PHP_WIN32
! fflush(stderr);
#endif
- exit(255);
- }
- heap->storage = storage;
- heap->block_size = block_size;
- heap->compact_size = 0;
- heap->segments_list = NULL;
- zend_mm_init(heap);
- # if ZEND_MM_CACHE_STAT
- memset(heap->cache_stat, 0, sizeof(heap->cache_stat));
- # endif
-
- heap->use_zend_alloc = 1;
- heap->real_size = 0;
- heap->overflow = 0;
- heap->real_peak = 0;
- heap->limit = ZEND_MM_LONG_CONST(1)<<(ZEND_MM_NUM_BUCKETS-2);
- heap->size = 0;
- heap->peak = 0;
- heap->internal = internal;
- heap->reserve = NULL;
- heap->reserve_size = reserve_size;
- if (reserve_size > 0) {
- heap->reserve = _zend_mm_alloc_int(heap, reserve_size ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC);
- }
- if (internal) {
- int i;
- zend_mm_free_block *p, *q, *orig;
- zend_mm_heap *mm_heap = _zend_mm_alloc_int(heap, sizeof(zend_mm_heap) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC);
-
- *mm_heap = *heap;
-
- p = ZEND_MM_SMALL_FREE_BUCKET(mm_heap, 0);
- orig = ZEND_MM_SMALL_FREE_BUCKET(heap, 0);
- for (i = 0; i < ZEND_MM_NUM_BUCKETS; i++) {
- q = p;
- while (q->prev_free_block != orig) {
- q = q->prev_free_block;
- }
- q->prev_free_block = p;
- q = p;
- while (q->next_free_block != orig) {
- q = q->next_free_block;
- }
- q->next_free_block = p;
- p = (zend_mm_free_block*)((char*)p + sizeof(zend_mm_free_block*) * 2);
- orig = (zend_mm_free_block*)((char*)orig + sizeof(zend_mm_free_block*) * 2);
- if (mm_heap->large_free_buckets[i]) {
- mm_heap->large_free_buckets[i]->parent = &mm_heap->large_free_buckets[i];
- }
- }
- mm_heap->rest_buckets[0] = mm_heap->rest_buckets[1] = ZEND_MM_REST_BUCKET(mm_heap);
- mm_heap->rest_count = 0;
! free(heap);
! heap = mm_heap;
}
- return heap;
}
! ZEND_API zend_mm_heap *zend_mm_startup(void)
{
! int i;
! size_t seg_size;
! char *mem_type = getenv("ZEND_MM_MEM_TYPE");
! char *tmp;
! const zend_mm_mem_handlers *handlers;
! zend_mm_heap *heap;
! if (mem_type == NULL) {
! i = 0;
! } else {
! for (i = 0; mem_handlers[i].name; i++) {
! if (strcmp(mem_handlers[i].name, mem_type) == 0) {
! break;
! }
! }
! if (!mem_handlers[i].name) {
! fprintf(stderr, "Wrong or unsupported zend_mm storage type '%s'\n", mem_type);
! fprintf(stderr, " supported types:\n");
! /* See http://support.microsoft.com/kb/190351 */
! #ifdef PHP_WIN32
! fflush(stderr);
! #endif
! for (i = 0; mem_handlers[i].name; i++) {
! fprintf(stderr, " '%s'\n", mem_handlers[i].name);
! }
! /* See http://support.microsoft.com/kb/190351 */
! #ifdef PHP_WIN32
! fflush(stderr);
#endif
- exit(255);
- }
- }
- handlers = &mem_handlers[i];
! tmp = getenv("ZEND_MM_SEG_SIZE");
! if (tmp) {
! seg_size = zend_atoi(tmp, 0);
! if (zend_mm_low_bit(seg_size) != zend_mm_high_bit(seg_size)) {
! fprintf(stderr, "ZEND_MM_SEG_SIZE must be a power of two\n");
! /* See http://support.microsoft.com/kb/190351 */
! #ifdef PHP_WIN32
! fflush(stderr);
! #endif
! exit(255);
! } else if (seg_size < ZEND_MM_ALIGNED_SEGMENT_SIZE + ZEND_MM_ALIGNED_HEADER_SIZE) {
! fprintf(stderr, "ZEND_MM_SEG_SIZE is too small\n");
! /* See http://support.microsoft.com/kb/190351 */
! #ifdef PHP_WIN32
! fflush(stderr);
#endif
- exit(255);
- }
- } else {
- seg_size = ZEND_MM_SEG_SIZE;
- }
! heap = zend_mm_startup_ex(handlers, seg_size, ZEND_MM_RESERVE_SIZE, 0, NULL);
! if (heap) {
! tmp = getenv("ZEND_MM_COMPACT");
! if (tmp) {
! heap->compact_size = zend_atoi(tmp, 0);
! } else {
! heap->compact_size = 2 * 1024 * 1024;
! }
! }
! return heap;
}
#if ZEND_DEBUG
! static long zend_mm_find_leaks(zend_mm_segment *segment, zend_mm_block *b)
{
! long leaks = 0;
! zend_mm_block *p, *q;
! p = ZEND_MM_NEXT_BLOCK(b);
! while (1) {
! if (ZEND_MM_IS_GUARD_BLOCK(p)) {
! ZEND_MM_CHECK_MAGIC(p, MEM_BLOCK_GUARD);
! segment = segment->next_segment;
! if (!segment) {
! break;
! }
! p = (zend_mm_block *) ((char *) segment + ZEND_MM_ALIGNED_SEGMENT_SIZE);
! continue;
! }
! q = ZEND_MM_NEXT_BLOCK(p);
! if (q <= p ||
! (char*)q > (char*)segment + segment->size ||
! p->info._size != q->info._prev) {
! zend_mm_panic("zend_mm_heap corrupted");
! }
! if (!ZEND_MM_IS_FREE_BLOCK(p)) {
! if (p->magic == MEM_BLOCK_VALID) {
! if (p->debug.filename==b->debug.filename && p->debug.lineno==b->debug.lineno) {
! ZEND_MM_SET_MAGIC(p, MEM_BLOCK_LEAK);
! leaks++;
! }
! #if ZEND_MM_CACHE
! } else if (p->magic == MEM_BLOCK_CACHED) {
! /* skip it */
! #endif
! } else if (p->magic != MEM_BLOCK_LEAK) {
! zend_mm_panic("zend_mm_heap corrupted");
! }
! }
! p = q;
}
- return leaks;
}
! static void zend_mm_check_leaks(zend_mm_heap *heap TSRMLS_DC)
{
! zend_mm_segment *segment = heap->segments_list;
! zend_mm_block *p, *q;
! zend_uint total = 0;
! if (!segment) {
! return;
! }
! p = (zend_mm_block *) ((char *) segment + ZEND_MM_ALIGNED_SEGMENT_SIZE);
! while (1) {
! q = ZEND_MM_NEXT_BLOCK(p);
! if (q <= p ||
! (char*)q > (char*)segment + segment->size ||
! p->info._size != q->info._prev) {
! zend_mm_panic("zend_mm_heap corrupted");
! }
! if (!ZEND_MM_IS_FREE_BLOCK(p)) {
! if (p->magic == MEM_BLOCK_VALID) {
! long repeated;
! zend_leak_info leak;
!
! ZEND_MM_SET_MAGIC(p, MEM_BLOCK_LEAK);
!
! leak.addr = ZEND_MM_DATA_OF(p);
! leak.size = p->debug.size;
! leak.filename = p->debug.filename;
! leak.lineno = p->debug.lineno;
! leak.orig_filename = p->debug.orig_filename;
! leak.orig_lineno = p->debug.orig_lineno;
!
! zend_message_dispatcher(ZMSG_LOG_SCRIPT_NAME, NULL TSRMLS_CC);
! zend_message_dispatcher(ZMSG_MEMORY_LEAK_DETECTED, &leak TSRMLS_CC);
! repeated = zend_mm_find_leaks(segment, p);
! total += 1 + repeated;
! if (repeated) {
! zend_message_dispatcher(ZMSG_MEMORY_LEAK_REPEATED, (void *)(zend_uintptr_t)repeated TSRMLS_CC);
! }
! #if ZEND_MM_CACHE
! } else if (p->magic == MEM_BLOCK_CACHED) {
! /* skip it */
#endif
! } else if (p->magic != MEM_BLOCK_LEAK) {
! zend_mm_panic("zend_mm_heap corrupted");
! }
! }
! if (ZEND_MM_IS_GUARD_BLOCK(q)) {
! segment = segment->next_segment;
! if (!segment) {
! break;
! }
! q = (zend_mm_block *) ((char *) segment + ZEND_MM_ALIGNED_SEGMENT_SIZE);
! }
! p = q;
! }
! if (total) {
! zend_message_dispatcher(ZMSG_MEMORY_LEAKS_GRAND_TOTAL, &total TSRMLS_CC);
}
}
! static int zend_mm_check_ptr(zend_mm_heap *heap, void *ptr, int silent ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! zend_mm_block *p;
! int no_cache_notice = 0;
! int had_problems = 0;
! int valid_beginning = 1;
!
! if (silent==2) {
! silent = 1;
! no_cache_notice = 1;
! } else if (silent==3) {
! silent = 0;
! no_cache_notice = 1;
! }
! if (!silent) {
! TSRMLS_FETCH();
!
! zend_message_dispatcher(ZMSG_LOG_SCRIPT_NAME, NULL TSRMLS_CC);
! zend_debug_alloc_output("---------------------------------------\n");
! zend_debug_alloc_output("%s(%d) : Block "PTR_FMT" status:\n" ZEND_FILE_LINE_RELAY_CC, ptr);
! if (__zend_orig_filename) {
! zend_debug_alloc_output("%s(%d) : Actual location (location was relayed)\n" ZEND_FILE_LINE_ORIG_RELAY_CC);
! }
! if (!ptr) {
! zend_debug_alloc_output("NULL\n");
! zend_debug_alloc_output("---------------------------------------\n");
! return 0;
! }
! }
! if (!ptr) {
! if (silent) {
! return zend_mm_check_ptr(heap, ptr, 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! }
! p = ZEND_MM_HEADER_OF(ptr);
! #ifdef ZTS
! if (ZEND_MM_BAD_THREAD_ID(p)) {
! if (!silent) {
! zend_debug_alloc_output("Invalid pointer: ((thread_id=0x%0.8X) != (expected=0x%0.8X))\n", (long)p->thread_id, (long)tsrm_thread_id());
! had_problems = 1;
! } else {
! return zend_mm_check_ptr(heap, ptr, 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
}
! #endif
!
! if (p->info._size != ZEND_MM_NEXT_BLOCK(p)->info._prev) {
! if (!silent) {
! zend_debug_alloc_output("Invalid pointer: ((size="PTR_FMT") != (next.prev="PTR_FMT"))\n", p->info._size, ZEND_MM_NEXT_BLOCK(p)->info._prev);
! had_problems = 1;
! } else {
! return zend_mm_check_ptr(heap, ptr, 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! }
! }
! if (p->info._prev != ZEND_MM_GUARD_BLOCK &&
! ZEND_MM_PREV_BLOCK(p)->info._size != p->info._prev) {
! if (!silent) {
! zend_debug_alloc_output("Invalid pointer: ((prev="PTR_FMT") != (prev.size="PTR_FMT"))\n", p->info._prev, ZEND_MM_PREV_BLOCK(p)->info._size);
! had_problems = 1;
! } else {
! return zend_mm_check_ptr(heap, ptr, 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! }
! }
!
! if (had_problems) {
! zend_debug_alloc_output("---------------------------------------\n");
! return 0;
! }
!
! if (!silent) {
! zend_debug_alloc_output("%10s\t","Beginning: ");
! }
! if (!ZEND_MM_IS_USED_BLOCK(p)) {
! if (!silent) {
! if (p->magic != MEM_BLOCK_FREED) {
! zend_debug_alloc_output("Freed (magic=0x%0.8X, expected=0x%0.8X)\n", p->magic, MEM_BLOCK_FREED);
! } else {
! zend_debug_alloc_output("Freed\n");
! }
! had_problems = 1;
! } else {
! return zend_mm_check_ptr(heap, ptr, 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! }
! } else if (ZEND_MM_IS_GUARD_BLOCK(p)) {
! if (!silent) {
! if (p->magic != MEM_BLOCK_FREED) {
! zend_debug_alloc_output("Guard (magic=0x%0.8X, expected=0x%0.8X)\n", p->magic, MEM_BLOCK_FREED);
! } else {
! zend_debug_alloc_output("Guard\n");
! }
! had_problems = 1;
! } else {
! return zend_mm_check_ptr(heap, ptr, 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! }
! } else {
! switch (p->magic) {
! case MEM_BLOCK_VALID:
! case MEM_BLOCK_LEAK:
! if (!silent) {
! zend_debug_alloc_output("OK (allocated on %s:%d, %d bytes)\n", p->debug.filename, p->debug.lineno, (int)p->debug.size);
! }
! break; /* ok */
! case MEM_BLOCK_CACHED:
! if (!no_cache_notice) {
! if (!silent) {
! zend_debug_alloc_output("Cached\n");
! had_problems = 1;
! } else {
! return zend_mm_check_ptr(heap, ptr, 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! }
! }
! case MEM_BLOCK_FREED:
! if (!silent) {
! zend_debug_alloc_output("Freed (invalid)\n");
! had_problems = 1;
! } else {
! return zend_mm_check_ptr(heap, ptr, 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! }
! break;
! case MEM_BLOCK_GUARD:
! if (!silent) {
! zend_debug_alloc_output("Guard (invalid)\n");
! had_problems = 1;
! } else {
! return zend_mm_check_ptr(heap, ptr, 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! }
! break;
! default:
! if (!silent) {
! zend_debug_alloc_output("Unknown (magic=0x%0.8X, expected=0x%0.8X)\n", p->magic, MEM_BLOCK_VALID);
! had_problems = 1;
! valid_beginning = 0;
! } else {
! return zend_mm_check_ptr(heap, ptr, 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! }
! break;
! }
! }
! #if ZEND_MM_HEAP_PROTECTION
! if (!valid_beginning) {
! if (!silent) {
! zend_debug_alloc_output("%10s\t", "Start:");
! zend_debug_alloc_output("Unknown\n");
! zend_debug_alloc_output("%10s\t", "End:");
! zend_debug_alloc_output("Unknown\n");
! }
} else {
! char *end_magic = ZEND_MM_END_MAGIC_PTR(p);
!
! if (p->debug.start_magic == _mem_block_start_magic) {
! if (!silent) {
! zend_debug_alloc_output("%10s\t", "Start:");
! zend_debug_alloc_output("OK\n");
! }
! } else {
! char *overflow_ptr, *magic_ptr=(char *) &_mem_block_start_magic;
! int overflows=0;
! int i;
! if (silent) {
! return _mem_block_check(ptr, 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! }
! had_problems = 1;
! overflow_ptr = (char *) &p->debug.start_magic;
! i = END_MAGIC_SIZE;
! while (--i >= 0) {
! if (overflow_ptr[i]!=magic_ptr[i]) {
! overflows++;
! }
! }
! zend_debug_alloc_output("%10s\t", "Start:");
! zend_debug_alloc_output("Overflown (magic=0x%0.8X instead of 0x%0.8X)\n", p->debug.start_magic, _mem_block_start_magic);
! zend_debug_alloc_output("%10s\t","");
! if (overflows >= END_MAGIC_SIZE) {
! zend_debug_alloc_output("At least %d bytes overflown\n", END_MAGIC_SIZE);
! } else {
! zend_debug_alloc_output("%d byte(s) overflown\n", overflows);
! }
}
- if (memcmp(end_magic, &_mem_block_end_magic, END_MAGIC_SIZE)==0) {
- if (!silent) {
- zend_debug_alloc_output("%10s\t", "End:");
- zend_debug_alloc_output("OK\n");
- }
- } else {
- char *overflow_ptr, *magic_ptr=(char *) &_mem_block_end_magic;
- int overflows=0;
- int i;
-
- if (silent) {
- return _mem_block_check(ptr, 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
- }
- had_problems = 1;
- overflow_ptr = (char *) end_magic;
-
- for (i=0; i < END_MAGIC_SIZE; i++) {
- if (overflow_ptr[i]!=magic_ptr[i]) {
- overflows++;
- }
- }
-
- zend_debug_alloc_output("%10s\t", "End:");
- zend_debug_alloc_output("Overflown (magic=0x%0.8X instead of 0x%0.8X)\n", *end_magic, _mem_block_end_magic);
- zend_debug_alloc_output("%10s\t","");
- if (overflows >= END_MAGIC_SIZE) {
- zend_debug_alloc_output("At least %d bytes overflown\n", END_MAGIC_SIZE);
- } else {
- zend_debug_alloc_output("%d byte(s) overflown\n", overflows);
- }
- }
- }
#endif
-
- if (!silent) {
- zend_debug_alloc_output("---------------------------------------\n");
}
- return ((!had_problems) ? 1 : 0);
}
! static int zend_mm_check_heap(zend_mm_heap *heap, int silent ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! zend_mm_segment *segment = heap->segments_list;
! zend_mm_block *p, *q;
! int errors = 0;
!
! if (!segment) {
! return 0;
! }
! p = (zend_mm_block *) ((char *) segment + ZEND_MM_ALIGNED_SEGMENT_SIZE);
! while (1) {
! q = ZEND_MM_NEXT_BLOCK(p);
! if (q <= p ||
! (char*)q > (char*)segment + segment->size ||
! p->info._size != q->info._prev) {
! zend_mm_panic("zend_mm_heap corrupted");
! }
! if (!ZEND_MM_IS_FREE_BLOCK(p)) {
! if (p->magic == MEM_BLOCK_VALID || p->magic == MEM_BLOCK_LEAK) {
! if (!zend_mm_check_ptr(heap, ZEND_MM_DATA_OF(p), (silent?2:3) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC)) {
! errors++;
! }
! #if ZEND_MM_CACHE
! } else if (p->magic == MEM_BLOCK_CACHED) {
! /* skip it */
! #endif
! } else if (p->magic != MEM_BLOCK_LEAK) {
! zend_mm_panic("zend_mm_heap corrupted");
! }
! }
! if (ZEND_MM_IS_GUARD_BLOCK(q)) {
! segment = segment->next_segment;
! if (!segment) {
! return errors;
! }
! q = (zend_mm_block *) ((char *) segment + ZEND_MM_ALIGNED_SEGMENT_SIZE);
! }
! p = q;
! }
! }
#endif
! ZEND_API void zend_mm_shutdown(zend_mm_heap *heap, int full_shutdown, int silent TSRMLS_DC)
! {
! zend_mm_storage *storage;
! zend_mm_segment *segment;
! zend_mm_segment *prev;
! int internal;
!
! if (!heap->use_zend_alloc) {
! if (full_shutdown) {
! free(heap);
}
! return;
! }
!
! if (heap->reserve) {
#if ZEND_DEBUG
! if (!silent) {
! _zend_mm_free_int(heap, heap->reserve ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC);
! }
#endif
! heap->reserve = NULL;
! }
!
! #if ZEND_MM_CACHE_STAT
! if (full_shutdown) {
! FILE *f;
!
! f = fopen("zend_mm.log", "w");
! if (f) {
! int i,j;
! size_t size, true_size, min_size, max_size;
! int hit = 0, miss = 0;
!
! fprintf(f, "\nidx min_size max_size true_size max_len hits misses\n");
! size = 0;
! while (1) {
! true_size = ZEND_MM_TRUE_SIZE(size);
! if (ZEND_MM_SMALL_SIZE(true_size)) {
! min_size = size;
! i = ZEND_MM_BUCKET_INDEX(true_size);
! size++;
! while (1) {
! true_size = ZEND_MM_TRUE_SIZE(size);
! if (ZEND_MM_SMALL_SIZE(true_size)) {
! j = ZEND_MM_BUCKET_INDEX(true_size);
! if (j > i) {
! max_size = size-1;
! break;
! }
! } else {
! max_size = size-1;
! break;
! }
! size++;
! }
! hit += heap->cache_stat[i].hit;
! miss += heap->cache_stat[i].miss;
! fprintf(f, "%2d %8d %8d %9d %8d %8d %8d\n", i, (int)min_size, (int)max_size, ZEND_MM_TRUE_SIZE(max_size), heap->cache_stat[i].max_count, heap->cache_stat[i].hit, heap->cache_stat[i].miss);
! } else {
! break;
! }
! }
! fprintf(f, " %8d %8d\n", hit, miss);
! fprintf(f, " %8d %8d\n", heap->cache_stat[ZEND_MM_NUM_BUCKETS].hit, heap->cache_stat[ZEND_MM_NUM_BUCKETS].miss);
! fclose(f);
! }
! }
#endif
!
#if ZEND_DEBUG
! if (!silent) {
! zend_mm_check_leaks(heap TSRMLS_CC);
! }
#endif
!
! internal = heap->internal;
! storage = heap->storage;
! segment = heap->segments_list;
! if (full_shutdown) {
! while (segment) {
! prev = segment;
! segment = segment->next_segment;
! ZEND_MM_STORAGE_FREE(prev);
! }
! heap->segments_list = NULL;
! storage->handlers->dtor(storage);
! if (!internal) {
! free(heap);
! }
! } else {
! if (segment) {
! #ifndef ZEND_WIN32
! if (heap->reserve_size) {
! while (segment->next_segment) {
! prev = segment;
! segment = segment->next_segment;
! ZEND_MM_STORAGE_FREE(prev);
! }
! heap->segments_list = segment;
! } else {
#endif
! do {
! prev = segment;
! segment = segment->next_segment;
! ZEND_MM_STORAGE_FREE(prev);
! } while (segment);
! heap->segments_list = NULL;
! #ifndef ZEND_WIN32
! }
#endif
- }
- if (heap->compact_size &&
- heap->real_peak > heap->compact_size) {
- storage->handlers->compact(storage);
- }
- zend_mm_init(heap);
- if (heap->segments_list) {
- heap->real_size = heap->segments_list->size;
- heap->real_peak = heap->segments_list->size;
- } else {
- heap->real_size = 0;
- heap->real_peak = 0;
- }
- heap->size = 0;
- heap->peak = 0;
- if (heap->segments_list) {
- /* mark segment as a free block */
- zend_mm_free_block *b = (zend_mm_free_block*)((char*)heap->segments_list + ZEND_MM_ALIGNED_SEGMENT_SIZE);
- size_t block_size = heap->segments_list->size - ZEND_MM_ALIGNED_SEGMENT_SIZE - ZEND_MM_ALIGNED_HEADER_SIZE;
-
- ZEND_MM_MARK_FIRST_BLOCK(b);
- ZEND_MM_LAST_BLOCK(ZEND_MM_BLOCK_AT(b, block_size));
- ZEND_MM_BLOCK(b, ZEND_MM_FREE_BLOCK, block_size);
- zend_mm_add_to_free_list(heap, b);
- }
- if (heap->reserve_size) {
- heap->reserve = _zend_mm_alloc_int(heap, heap->reserve_size ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC);
- }
- heap->overflow = 0;
- }
- }
-
- static void zend_mm_safe_error(zend_mm_heap *heap,
- const char *format,
- size_t limit,
#if ZEND_DEBUG
! const char *filename,
! uint lineno,
#endif
! size_t size)
! {
! if (heap->reserve) {
! _zend_mm_free_int(heap, heap->reserve ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC);
! heap->reserve = NULL;
! }
! if (heap->overflow == 0) {
! const char *error_filename;
! uint error_lineno;
! TSRMLS_FETCH();
! if (zend_is_compiling(TSRMLS_C)) {
! error_filename = zend_get_compiled_filename(TSRMLS_C);
! error_lineno = zend_get_compiled_lineno(TSRMLS_C);
! } else if (EG(in_execution)) {
! error_filename = EG(active_op_array)?EG(active_op_array)->filename:NULL;
! error_lineno = EG(opline_ptr)?(*EG(opline_ptr))->lineno:0;
! } else {
! error_filename = NULL;
! error_lineno = 0;
! }
! if (!error_filename) {
! error_filename = "Unknown";
! }
! heap->overflow = 1;
! zend_try {
! zend_error_noreturn(E_ERROR,
! format,
! limit,
! #if ZEND_DEBUG
! filename,
! lineno,
! #endif
! size);
! } zend_catch {
! if (heap->overflow == 2) {
! fprintf(stderr, "\nFatal error: ");
! fprintf(stderr,
! format,
! limit,
#if ZEND_DEBUG
! filename,
! lineno,
! #endif
! size);
! fprintf(stderr, " in %s on line %d\n", error_filename, error_lineno);
! }
! /* See http://support.microsoft.com/kb/190351 */
! #ifdef PHP_WIN32
! fflush(stderr);
#endif
! } zend_end_try();
! } else {
! heap->overflow = 2;
! }
! zend_bailout();
! }
!
! static zend_mm_free_block *zend_mm_search_large_block(zend_mm_heap *heap, size_t true_size)
! {
! zend_mm_free_block *best_fit;
! size_t index = ZEND_MM_LARGE_BUCKET_INDEX(true_size);
! size_t bitmap = heap->large_free_bitmap >> index;
! zend_mm_free_block *p;
!
! if (bitmap == 0) {
! return NULL;
! }
!
! if (UNEXPECTED((bitmap & 1) != 0)) {
! /* Search for best "large" free block */
! zend_mm_free_block *rst = NULL;
! size_t m;
! size_t best_size = -1;
!
! best_fit = NULL;
! p = heap->large_free_buckets[index];
! for (m = true_size << (ZEND_MM_NUM_BUCKETS - index); ; m <<= 1) {
! if (UNEXPECTED(ZEND_MM_FREE_BLOCK_SIZE(p) == true_size)) {
! return p->next_free_block;
! } else if (ZEND_MM_FREE_BLOCK_SIZE(p) >= true_size &&
! ZEND_MM_FREE_BLOCK_SIZE(p) < best_size) {
! best_size = ZEND_MM_FREE_BLOCK_SIZE(p);
! best_fit = p;
! }
! if ((m & (ZEND_MM_LONG_CONST(1) << (ZEND_MM_NUM_BUCKETS-1))) == 0) {
! if (p->child[1]) {
! rst = p->child[1];
}
! if (p->child[0]) {
! p = p->child[0];
! } else {
! break;
}
! } else if (p->child[1]) {
! p = p->child[1];
! } else {
! break;
}
}
! for (p = rst; p; p = p->child[p->child[0] != NULL]) {
! if (UNEXPECTED(ZEND_MM_FREE_BLOCK_SIZE(p) == true_size)) {
! return p->next_free_block;
! } else if (ZEND_MM_FREE_BLOCK_SIZE(p) > true_size &&
! ZEND_MM_FREE_BLOCK_SIZE(p) < best_size) {
! best_size = ZEND_MM_FREE_BLOCK_SIZE(p);
! best_fit = p;
! }
! }
! if (best_fit) {
! return best_fit->next_free_block;
! }
! bitmap = bitmap >> 1;
! if (!bitmap) {
! return NULL;
! }
! index++;
! }
! /* Search for smallest "large" free block */
! best_fit = p = heap->large_free_buckets[index + zend_mm_low_bit(bitmap)];
! while ((p = p->child[p->child[0] != NULL])) {
! if (ZEND_MM_FREE_BLOCK_SIZE(p) < ZEND_MM_FREE_BLOCK_SIZE(best_fit)) {
! best_fit = p;
}
}
- return best_fit->next_free_block;
- }
! static void *_zend_mm_alloc_int(zend_mm_heap *heap, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
! {
! zend_mm_free_block *best_fit;
! size_t true_size = ZEND_MM_TRUE_SIZE(size);
! size_t block_size;
! size_t remaining_size;
! size_t segment_size;
! zend_mm_segment *segment;
! int keep_rest = 0;
! #ifdef ZEND_SIGNALS
! TSRMLS_FETCH();
! #endif
! HANDLE_BLOCK_INTERRUPTIONS();
! if (EXPECTED(ZEND_MM_SMALL_SIZE(true_size))) {
! size_t index = ZEND_MM_BUCKET_INDEX(true_size);
! size_t bitmap;
!
! if (UNEXPECTED(true_size < size)) {
! goto out_of_memory;
! }
! #if ZEND_MM_CACHE
! if (EXPECTED(heap->cache[index] != NULL)) {
! /* Get block from cache */
! #if ZEND_MM_CACHE_STAT
! heap->cache_stat[index].count--;
! heap->cache_stat[index].hit++;
! #endif
! best_fit = heap->cache[index];
! heap->cache[index] = best_fit->prev_free_block;
! heap->cached -= true_size;
! ZEND_MM_CHECK_MAGIC(best_fit, MEM_BLOCK_CACHED);
! ZEND_MM_SET_DEBUG_INFO(best_fit, size, 1, 0);
! HANDLE_UNBLOCK_INTERRUPTIONS();
! return ZEND_MM_DATA_OF(best_fit);
! }
! #if ZEND_MM_CACHE_STAT
! heap->cache_stat[index].miss++;
#endif
#endif
! bitmap = heap->free_bitmap >> index;
! if (bitmap) {
! /* Found some "small" free block that can be used */
! index += zend_mm_low_bit(bitmap);
! best_fit = heap->free_buckets[index*2];
! #if ZEND_MM_CACHE_STAT
! heap->cache_stat[ZEND_MM_NUM_BUCKETS].hit++;
! #endif
! goto zend_mm_finished_searching_for_block;
! }
! }
! #if ZEND_MM_CACHE_STAT
! heap->cache_stat[ZEND_MM_NUM_BUCKETS].miss++;
! #endif
!
! best_fit = zend_mm_search_large_block(heap, true_size);
!
! if (!best_fit && heap->real_size >= heap->limit - heap->block_size) {
! zend_mm_free_block *p = heap->rest_buckets[0];
! size_t best_size = -1;
!
! while (p != ZEND_MM_REST_BUCKET(heap)) {
! if (UNEXPECTED(ZEND_MM_FREE_BLOCK_SIZE(p) == true_size)) {
! best_fit = p;
! goto zend_mm_finished_searching_for_block;
! } else if (ZEND_MM_FREE_BLOCK_SIZE(p) > true_size &&
! ZEND_MM_FREE_BLOCK_SIZE(p) < best_size) {
! best_size = ZEND_MM_FREE_BLOCK_SIZE(p);
! best_fit = p;
}
! p = p->prev_free_block;
}
}
! if (!best_fit) {
! if (true_size > heap->block_size - (ZEND_MM_ALIGNED_SEGMENT_SIZE + ZEND_MM_ALIGNED_HEADER_SIZE)) {
! /* Make sure we add a memory block which is big enough,
! segment must have header "size" and trailer "guard" block */
! segment_size = true_size + ZEND_MM_ALIGNED_SEGMENT_SIZE + ZEND_MM_ALIGNED_HEADER_SIZE;
! segment_size = (segment_size + (heap->block_size-1)) & ~(heap->block_size-1);
! keep_rest = 1;
! } else {
! segment_size = heap->block_size;
}
- if (segment_size < true_size ||
- heap->real_size + segment_size > heap->limit) {
- /* Memory limit overflow */
- #if ZEND_MM_CACHE
- zend_mm_free_cache(heap);
- #endif
- HANDLE_UNBLOCK_INTERRUPTIONS();
#if ZEND_DEBUG
! zend_mm_safe_error(heap, "Allowed memory size of %ld bytes exhausted at %s:%d (tried to allocate %lu bytes)", heap->limit, __zend_filename, __zend_lineno, size);
#else
! zend_mm_safe_error(heap, "Allowed memory size of %ld bytes exhausted (tried to allocate %lu bytes)", heap->limit, size);
#endif
}
! segment = (zend_mm_segment *) ZEND_MM_STORAGE_ALLOC(segment_size);
! if (!segment) {
! /* Storage manager cannot allocate memory */
! #if ZEND_MM_CACHE
! zend_mm_free_cache(heap);
! #endif
! out_of_memory:
! HANDLE_UNBLOCK_INTERRUPTIONS();
#if ZEND_DEBUG
! zend_mm_safe_error(heap, "Out of memory (allocated %ld) at %s:%d (tried to allocate %lu bytes)", heap->real_size, __zend_filename, __zend_lineno, size);
#else
! zend_mm_safe_error(heap, "Out of memory (allocated %ld) (tried to allocate %lu bytes)", heap->real_size, size);
#endif
return NULL;
}
-
- heap->real_size += segment_size;
- if (heap->real_size > heap->real_peak) {
- heap->real_peak = heap->real_size;
- }
-
- segment->size = segment_size;
- segment->next_segment = heap->segments_list;
- heap->segments_list = segment;
-
- best_fit = (zend_mm_free_block *) ((char *) segment + ZEND_MM_ALIGNED_SEGMENT_SIZE);
- ZEND_MM_MARK_FIRST_BLOCK(best_fit);
-
- block_size = segment_size - ZEND_MM_ALIGNED_SEGMENT_SIZE - ZEND_MM_ALIGNED_HEADER_SIZE;
-
- ZEND_MM_LAST_BLOCK(ZEND_MM_BLOCK_AT(best_fit, block_size));
-
- } else {
- zend_mm_finished_searching_for_block:
- /* remove from free list */
- ZEND_MM_CHECK_MAGIC(best_fit, MEM_BLOCK_FREED);
- ZEND_MM_CHECK_COOKIE(best_fit);
- ZEND_MM_CHECK_BLOCK_LINKAGE(best_fit);
- zend_mm_remove_from_free_list(heap, best_fit);
-
- block_size = ZEND_MM_FREE_BLOCK_SIZE(best_fit);
- }
-
- remaining_size = block_size - true_size;
-
- if (remaining_size < ZEND_MM_ALIGNED_MIN_HEADER_SIZE) {
- true_size = block_size;
- ZEND_MM_BLOCK(best_fit, ZEND_MM_USED_BLOCK, true_size);
- } else {
- zend_mm_free_block *new_free_block;
-
- /* prepare new free block */
- ZEND_MM_BLOCK(best_fit, ZEND_MM_USED_BLOCK, true_size);
- new_free_block = (zend_mm_free_block *) ZEND_MM_BLOCK_AT(best_fit, true_size);
- ZEND_MM_BLOCK(new_free_block, ZEND_MM_FREE_BLOCK, remaining_size);
-
- /* add the new free block to the free list */
- if (EXPECTED(!keep_rest)) {
- zend_mm_add_to_free_list(heap, new_free_block);
- } else {
- zend_mm_add_to_rest_list(heap, new_free_block);
- }
}
!
! ZEND_MM_SET_DEBUG_INFO(best_fit, size, 1, 1);
!
! heap->size += true_size;
! if (heap->peak < heap->size) {
! heap->peak = heap->size;
}
!
! HANDLE_UNBLOCK_INTERRUPTIONS();
!
! return ZEND_MM_DATA_OF(best_fit);
}
!
! static void _zend_mm_free_int(zend_mm_heap *heap, void *p ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
- zend_mm_block *mm_block;
- zend_mm_block *next_block;
size_t size;
- #ifdef ZEND_SIGNALS
- TSRMLS_FETCH();
- #endif
- if (!ZEND_MM_VALID_PTR(p)) {
- return;
- }
! HANDLE_BLOCK_INTERRUPTIONS();
!
! mm_block = ZEND_MM_HEADER_OF(p);
! size = ZEND_MM_BLOCK_SIZE(mm_block);
! ZEND_MM_CHECK_PROTECTION(mm_block);
!
! #if ZEND_DEBUG || ZEND_MM_HEAP_PROTECTION
! memset(ZEND_MM_DATA_OF(mm_block), 0x5a, mm_block->debug.size);
! #endif
!
! #if ZEND_MM_CACHE
! if (EXPECTED(ZEND_MM_SMALL_SIZE(size)) && EXPECTED(heap->cached < ZEND_MM_CACHE_SIZE)) {
! size_t index = ZEND_MM_BUCKET_INDEX(size);
! zend_mm_free_block **cache = &heap->cache[index];
!
! ((zend_mm_free_block*)mm_block)->prev_free_block = *cache;
! *cache = (zend_mm_free_block*)mm_block;
! heap->cached += size;
! ZEND_MM_SET_MAGIC(mm_block, MEM_BLOCK_CACHED);
! #if ZEND_MM_CACHE_STAT
! if (++heap->cache_stat[index].count > heap->cache_stat[index].max_count) {
! heap->cache_stat[index].max_count = heap->cache_stat[index].count;
! }
! #endif
! HANDLE_UNBLOCK_INTERRUPTIONS();
! return;
! }
#endif
!
heap->size -= size;
-
- next_block = ZEND_MM_BLOCK_AT(mm_block, size);
- if (ZEND_MM_IS_FREE_BLOCK(next_block)) {
- zend_mm_remove_from_free_list(heap, (zend_mm_free_block *) next_block);
- size += ZEND_MM_FREE_BLOCK_SIZE(next_block);
- }
- if (ZEND_MM_PREV_BLOCK_IS_FREE(mm_block)) {
- mm_block = ZEND_MM_PREV_BLOCK(mm_block);
- zend_mm_remove_from_free_list(heap, (zend_mm_free_block *) mm_block);
- size += ZEND_MM_FREE_BLOCK_SIZE(mm_block);
- }
- if (ZEND_MM_IS_FIRST_BLOCK(mm_block) &&
- ZEND_MM_IS_GUARD_BLOCK(ZEND_MM_BLOCK_AT(mm_block, size))) {
- zend_mm_del_segment(heap, (zend_mm_segment *) ((char *)mm_block - ZEND_MM_ALIGNED_SEGMENT_SIZE));
- } else {
- ZEND_MM_BLOCK(mm_block, ZEND_MM_FREE_BLOCK, size);
- zend_mm_add_to_free_list(heap, (zend_mm_free_block *) mm_block);
- }
- HANDLE_UNBLOCK_INTERRUPTIONS();
- }
-
- static void *_zend_mm_realloc_int(zend_mm_heap *heap, void *p, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
- {
- zend_mm_block *mm_block = ZEND_MM_HEADER_OF(p);
- zend_mm_block *next_block;
- size_t true_size;
- size_t orig_size;
- void *ptr;
- #ifdef ZEND_SIGNALS
- TSRMLS_FETCH();
#endif
! if (UNEXPECTED(!p) || !ZEND_MM_VALID_PTR(p)) {
! return _zend_mm_alloc_int(heap, size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! }
! HANDLE_BLOCK_INTERRUPTIONS();
! mm_block = ZEND_MM_HEADER_OF(p);
! true_size = ZEND_MM_TRUE_SIZE(size);
! orig_size = ZEND_MM_BLOCK_SIZE(mm_block);
! ZEND_MM_CHECK_PROTECTION(mm_block);
! if (UNEXPECTED(true_size < size)) {
! goto out_of_memory;
}
! if (true_size <= orig_size) {
! size_t remaining_size = orig_size - true_size;
!
! if (remaining_size >= ZEND_MM_ALIGNED_MIN_HEADER_SIZE) {
! zend_mm_free_block *new_free_block;
!
! next_block = ZEND_MM_BLOCK_AT(mm_block, orig_size);
! if (ZEND_MM_IS_FREE_BLOCK(next_block)) {
! remaining_size += ZEND_MM_FREE_BLOCK_SIZE(next_block);
! zend_mm_remove_from_free_list(heap, (zend_mm_free_block *) next_block);
}
-
- /* prepare new free block */
- ZEND_MM_BLOCK(mm_block, ZEND_MM_USED_BLOCK, true_size);
- new_free_block = (zend_mm_free_block *) ZEND_MM_BLOCK_AT(mm_block, true_size);
-
- ZEND_MM_BLOCK(new_free_block, ZEND_MM_FREE_BLOCK, remaining_size);
-
- /* add the new free block to the free list */
- zend_mm_add_to_free_list(heap, new_free_block);
- heap->size += (true_size - orig_size);
}
! ZEND_MM_SET_DEBUG_INFO(mm_block, size, 0, 0);
! HANDLE_UNBLOCK_INTERRUPTIONS();
! return p;
}
!
! #if ZEND_MM_CACHE
! if (ZEND_MM_SMALL_SIZE(true_size)) {
! size_t index = ZEND_MM_BUCKET_INDEX(true_size);
!
! if (heap->cache[index] != NULL) {
! zend_mm_free_block *best_fit;
! zend_mm_free_block **cache;
!
! #if ZEND_MM_CACHE_STAT
! heap->cache_stat[index].count--;
! heap->cache_stat[index].hit++;
! #endif
! best_fit = heap->cache[index];
! heap->cache[index] = best_fit->prev_free_block;
! ZEND_MM_CHECK_MAGIC(best_fit, MEM_BLOCK_CACHED);
! ZEND_MM_SET_DEBUG_INFO(best_fit, size, 1, 0);
!
! ptr = ZEND_MM_DATA_OF(best_fit);
!
! #if ZEND_DEBUG || ZEND_MM_HEAP_PROTECTION
! memcpy(ptr, p, mm_block->debug.size);
! #else
! memcpy(ptr, p, orig_size - ZEND_MM_ALIGNED_HEADER_SIZE);
! #endif
!
! heap->cached -= true_size - orig_size;
!
! index = ZEND_MM_BUCKET_INDEX(orig_size);
! cache = &heap->cache[index];
!
! ((zend_mm_free_block*)mm_block)->prev_free_block = *cache;
! *cache = (zend_mm_free_block*)mm_block;
! ZEND_MM_SET_MAGIC(mm_block, MEM_BLOCK_CACHED);
! #if ZEND_MM_CACHE_STAT
! if (++heap->cache_stat[index].count > heap->cache_stat[index].max_count) {
! heap->cache_stat[index].max_count = heap->cache_stat[index].count;
! }
! #endif
!
! HANDLE_UNBLOCK_INTERRUPTIONS();
! return ptr;
! }
}
! #endif
!
! next_block = ZEND_MM_BLOCK_AT(mm_block, orig_size);
!
! if (ZEND_MM_IS_FREE_BLOCK(next_block)) {
! ZEND_MM_CHECK_COOKIE(next_block);
! ZEND_MM_CHECK_BLOCK_LINKAGE(next_block);
! if (orig_size + ZEND_MM_FREE_BLOCK_SIZE(next_block) >= true_size) {
! size_t block_size = orig_size + ZEND_MM_FREE_BLOCK_SIZE(next_block);
! size_t remaining_size = block_size - true_size;
! zend_mm_remove_from_free_list(heap, (zend_mm_free_block *) next_block);
! if (remaining_size < ZEND_MM_ALIGNED_MIN_HEADER_SIZE) {
! true_size = block_size;
! ZEND_MM_BLOCK(mm_block, ZEND_MM_USED_BLOCK, true_size);
! } else {
! zend_mm_free_block *new_free_block;
! /* prepare new free block */
! ZEND_MM_BLOCK(mm_block, ZEND_MM_USED_BLOCK, true_size);
! new_free_block = (zend_mm_free_block *) ZEND_MM_BLOCK_AT(mm_block, true_size);
! ZEND_MM_BLOCK(new_free_block, ZEND_MM_FREE_BLOCK, remaining_size);
!
! /* add the new free block to the free list */
! if (ZEND_MM_IS_FIRST_BLOCK(mm_block) &&
! ZEND_MM_IS_GUARD_BLOCK(ZEND_MM_BLOCK_AT(new_free_block, remaining_size))) {
! zend_mm_add_to_rest_list(heap, new_free_block);
! } else {
! zend_mm_add_to_free_list(heap, new_free_block);
}
}
- ZEND_MM_SET_DEBUG_INFO(mm_block, size, 0, 0);
- heap->size = heap->size + true_size - orig_size;
- if (heap->peak < heap->size) {
- heap->peak = heap->size;
- }
- HANDLE_UNBLOCK_INTERRUPTIONS();
- return p;
- } else if (ZEND_MM_IS_FIRST_BLOCK(mm_block) &&
- ZEND_MM_IS_GUARD_BLOCK(ZEND_MM_BLOCK_AT(next_block, ZEND_MM_FREE_BLOCK_SIZE(next_block)))) {
- zend_mm_remove_from_free_list(heap, (zend_mm_free_block *) next_block);
- goto realloc_segment;
- }
- } else if (ZEND_MM_IS_FIRST_BLOCK(mm_block) && ZEND_MM_IS_GUARD_BLOCK(next_block)) {
- zend_mm_segment *segment;
- zend_mm_segment *segment_copy;
- size_t segment_size;
- size_t block_size;
- size_t remaining_size;
-
- realloc_segment:
- /* segment size, size of block and size of guard block */
- if (true_size > heap->block_size - (ZEND_MM_ALIGNED_SEGMENT_SIZE + ZEND_MM_ALIGNED_HEADER_SIZE)) {
- segment_size = true_size+ZEND_MM_ALIGNED_SEGMENT_SIZE+ZEND_MM_ALIGNED_HEADER_SIZE;
- segment_size = (segment_size + (heap->block_size-1)) & ~(heap->block_size-1);
- } else {
- segment_size = heap->block_size;
- }
-
- segment_copy = (zend_mm_segment *) ((char *)mm_block - ZEND_MM_ALIGNED_SEGMENT_SIZE);
- if (segment_size < true_size ||
- heap->real_size + segment_size - segment_copy->size > heap->limit) {
- if (ZEND_MM_IS_FREE_BLOCK(next_block)) {
- zend_mm_add_to_free_list(heap, (zend_mm_free_block *) next_block);
- }
- #if ZEND_MM_CACHE
- zend_mm_free_cache(heap);
- #endif
- HANDLE_UNBLOCK_INTERRUPTIONS();
- #if ZEND_DEBUG
- zend_mm_safe_error(heap, "Allowed memory size of %ld bytes exhausted at %s:%d (tried to allocate %ld bytes)", heap->limit, __zend_filename, __zend_lineno, size);
- #else
- zend_mm_safe_error(heap, "Allowed memory size of %ld bytes exhausted (tried to allocate %ld bytes)", heap->limit, size);
- #endif
- return NULL;
}
! segment = ZEND_MM_STORAGE_REALLOC(segment_copy, segment_size);
! if (!segment) {
! #if ZEND_MM_CACHE
! zend_mm_free_cache(heap);
! #endif
! out_of_memory:
! HANDLE_UNBLOCK_INTERRUPTIONS();
! #if ZEND_DEBUG
! zend_mm_safe_error(heap, "Out of memory (allocated %ld) at %s:%d (tried to allocate %ld bytes)", heap->real_size, __zend_filename, __zend_lineno, size);
! #else
! zend_mm_safe_error(heap, "Out of memory (allocated %ld) (tried to allocate %ld bytes)", heap->real_size, size);
! #endif
! return NULL;
! }
! heap->real_size += segment_size - segment->size;
! if (heap->real_size > heap->real_peak) {
! heap->real_peak = heap->real_size;
! }
! segment->size = segment_size;
! if (segment != segment_copy) {
! zend_mm_segment **seg = &heap->segments_list;
! while (*seg != segment_copy) {
! seg = &(*seg)->next_segment;
}
- *seg = segment;
- mm_block = (zend_mm_block *) ((char *) segment + ZEND_MM_ALIGNED_SEGMENT_SIZE);
- ZEND_MM_MARK_FIRST_BLOCK(mm_block);
}
! block_size = segment_size - ZEND_MM_ALIGNED_SEGMENT_SIZE - ZEND_MM_ALIGNED_HEADER_SIZE;
! remaining_size = block_size - true_size;
!
! /* setup guard block */
! ZEND_MM_LAST_BLOCK(ZEND_MM_BLOCK_AT(mm_block, block_size));
! if (remaining_size < ZEND_MM_ALIGNED_MIN_HEADER_SIZE) {
! true_size = block_size;
! ZEND_MM_BLOCK(mm_block, ZEND_MM_USED_BLOCK, true_size);
! } else {
! zend_mm_free_block *new_free_block;
! /* prepare new free block */
! ZEND_MM_BLOCK(mm_block, ZEND_MM_USED_BLOCK, true_size);
! new_free_block = (zend_mm_free_block *) ZEND_MM_BLOCK_AT(mm_block, true_size);
! ZEND_MM_BLOCK(new_free_block, ZEND_MM_FREE_BLOCK, remaining_size);
! /* add the new free block to the free list */
! zend_mm_add_to_rest_list(heap, new_free_block);
! }
! ZEND_MM_SET_DEBUG_INFO(mm_block, size, 1, 1);
! heap->size = heap->size + true_size - orig_size;
! if (heap->peak < heap->size) {
! heap->peak = heap->size;
}
! HANDLE_UNBLOCK_INTERRUPTIONS();
! return ZEND_MM_DATA_OF(mm_block);
! }
!
! ptr = _zend_mm_alloc_int(heap, size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! #if ZEND_DEBUG || ZEND_MM_HEAP_PROTECTION
! memcpy(ptr, p, mm_block->debug.size);
! #else
! memcpy(ptr, p, orig_size - ZEND_MM_ALIGNED_HEADER_SIZE);
#endif
! _zend_mm_free_int(heap, p ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! HANDLE_UNBLOCK_INTERRUPTIONS();
! return ptr;
}
ZEND_API void *_zend_mm_alloc(zend_mm_heap *heap, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! return _zend_mm_alloc_int(heap, size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! ZEND_API void _zend_mm_free(zend_mm_heap *heap, void *p ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! _zend_mm_free_int(heap, p ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! ZEND_API void *_zend_mm_realloc(zend_mm_heap *heap, void *ptr, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! return _zend_mm_realloc_int(heap, ptr, size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! ZEND_API size_t _zend_mm_block_size(zend_mm_heap *heap, void *p ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! zend_mm_block *mm_block;
!
! if (!ZEND_MM_VALID_PTR(p)) {
! return 0;
! }
! mm_block = ZEND_MM_HEADER_OF(p);
! ZEND_MM_CHECK_PROTECTION(mm_block);
! #if ZEND_DEBUG || ZEND_MM_HEAP_PROTECTION
! return mm_block->debug.size;
! #else
! return ZEND_MM_BLOCK_SIZE(mm_block);
! #endif
}
/**********************/
--- 345,1934 ----
exit(1);
}
! static ZEND_NORETURN void zend_mm_safe_error(zend_mm_heap *heap,
! const char *format,
! size_t limit,
! #if ZEND_DEBUG
! const char *filename,
! uint lineno,
#endif
! size_t size)
{
! TSRMLS_FETCH();
! heap->overflow = 1;
! zend_try {
! zend_error_noreturn(E_ERROR,
! format,
! limit,
! #if ZEND_DEBUG
! filename,
! lineno,
! #endif
! size);
! } zend_catch {
! } zend_end_try();
! heap->overflow = 0;
! zend_bailout();
! exit(1);
}
! /*****************/
! /* OS Allocation */
! /*****************/
! static void *zend_mm_mmap_fixed(void *addr, size_t size)
{
! #ifdef _WIN32
! return VirtualAlloc(addr, size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
#else
! /* MAP_FIXED leads to discarding of the old mapping, so it can't be used. */
! void *ptr = mmap(addr, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON /*| MAP_POPULATE | MAP_HUGETLB*/, -1, 0);
!
! if (ptr == MAP_FAILED) {
! #if ZEND_MM_ERROR
! fprintf(stderr, "\nmmap() failed: [%d] %s\n", errno, strerror(errno));
#endif
! return NULL;
! } else if (ptr != addr) {
! if (munmap(ptr, size) != 0) {
! #if ZEND_MM_ERROR
! fprintf(stderr, "\nmunmap() failed: [%d] %s\n", errno, strerror(errno));
#endif
}
! return NULL;
}
+ return ptr;
#endif
}
! static void *zend_mm_mmap(size_t size)
{
! #ifdef _WIN32
! void *ptr = VirtualAlloc(NULL, size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
+ if (ptr == NULL) {
+ #if ZEND_MM_ERROR
+ fprintf(stderr, "\nVirtualAlloc() failed: [%d]\n", GetLastError());
#endif
! return NULL;
}
! return ptr;
! #else
! void *ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON /*| MAP_POPULATE | MAP_HUGETLB*/, -1, 0);
+ if (ptr == MAP_FAILED) {
+ #if ZEND_MM_ERROR
+ fprintf(stderr, "\nmmap() failed: [%d] %s\n", errno, strerror(errno));
#endif
return NULL;
}
+ return ptr;
+ #endif
}
! static void zend_mm_munmap(void *addr, size_t size)
{
! #ifdef _WIN32
! if (VirtualFree(addr, 0, MEM_RELEASE) == 0) {
! #if ZEND_MM_ERROR
! fprintf(stderr, "\nVirtualFree() failed: [%d]\n", GetLastError());
! #endif
! }
! #else
! if (munmap(addr, size) != 0) {
! #if ZEND_MM_ERROR
! fprintf(stderr, "\nmunmap() failed: [%d] %s\n", errno, strerror(errno));
! #endif
! }
! #endif
}
! /***********/
! /* Bitmask */
! /***********/
!
! /* number of trailing set (1) bits */
! static zend_always_inline int zend_mm_bitset_nts(zend_mm_bitset bitset)
{
! #if defined(__GNUC__)
! return __builtin_ctzl(~bitset);
! #else
! int n;
! if (bitset == (zend_mm_bitset)-1) return ZEND_MM_BITSET_LEN;
+ n = 0;
+ #if SIZEOF_LONG == 8
+ if (sizeof(zend_mm_bitset) == 8) {
+ if ((bitset & 0xffffffff) == 0xffffffff) {n += 32; bitset = bitset >> 32;}
+ }
#endif
+ if ((bitset & 0x0000ffff) == 0x0000ffff) {n += 16; bitset = bitset >> 16;}
+ if ((bitset & 0x000000ff) == 0x000000ff) {n += 8; bitset = bitset >> 8;}
+ if ((bitset & 0x0000000f) == 0x0000000f) {n += 4; bitset = bitset >> 4;}
+ if ((bitset & 0x00000003) == 0x00000003) {n += 2; bitset = bitset >> 2;}
+ return n + (bitset & 1);
+ #endif
+ }
! /* number of trailing zero bits (0x01 -> 1; 0x40 -> 6; 0x00 -> LEN) */
! static zend_always_inline int zend_mm_bitset_ntz(zend_mm_bitset bitset)
{
! #if defined(__GNUC__)
! return __builtin_ctzl(bitset);
! #else
! int n;
! if (bitset == (zend_mm_bitset)0) return ZEND_MM_BITSET_LEN;
!
! n = 1;
! #if SIZEOF_LONG == 8
! if (sizeof(zend_mm_bitset) == 8) {
! if ((bitset & 0xffffffff) == 0) {n += 32; bitset = bitset >> 32;}
}
! #endif
! if ((bitset & 0x0000ffff) == 0) {n += 16; bitset = bitset >> 16;}
! if ((bitset & 0x000000ff) == 0) {n += 8; bitset = bitset >> 8;}
! if ((bitset & 0x0000000f) == 0) {n += 4; bitset = bitset >> 4;}
! if ((bitset & 0x00000003) == 0) {n += 2; bitset = bitset >> 2;}
! return n - (bitset & 1);
! #endif
}
! static zend_always_inline int zend_mm_bitset_find_zero(zend_mm_bitset *bitset, int size)
{
! int i = 0;
!
! do {
! zend_mm_bitset tmp = bitset[i];
! if (tmp != (zend_mm_bitset)-1) {
! return i * ZEND_MM_BITSET_LEN + zend_mm_bitset_nts(tmp);
! }
! i++;
! } while (i < size);
! return -1;
}
! static zend_always_inline int zend_mm_bitset_find_one(zend_mm_bitset *bitset, int size)
{
! int i = 0;
!
! do {
! zend_mm_bitset tmp = bitset[i];
! if (tmp != 0) {
! return i * ZEND_MM_BITSET_LEN + zend_mm_bitset_ntz(tmp);
! }
! i++;
! } while (i < size);
! return -1;
}
! static zend_always_inline int zend_mm_bitset_find_zero_and_set(zend_mm_bitset *bitset, int size)
{
! int i = 0;
!
! do {
! zend_mm_bitset tmp = bitset[i];
! if (tmp != (zend_mm_bitset)-1) {
! int n = zend_mm_bitset_nts(tmp);
! bitset[i] |= 1 << n;
! return i * ZEND_MM_BITSET_LEN + n;
! }
! i++;
! } while (i < size);
! return -1;
}
! static zend_always_inline int zend_mm_bitset_is_set(zend_mm_bitset *bitset, int bit)
{
! return (bitset[bit / ZEND_MM_BITSET_LEN] & (1L << (bit & (ZEND_MM_BITSET_LEN-1)))) != 0;
}
! static zend_always_inline void zend_mm_bitset_set_bit(zend_mm_bitset *bitset, int bit)
{
! bitset[bit / ZEND_MM_BITSET_LEN] |= (1L << (bit & (ZEND_MM_BITSET_LEN-1)));
}
! static zend_always_inline void zend_mm_bitset_reset_bit(zend_mm_bitset *bitset, int bit)
{
! bitset[bit / ZEND_MM_BITSET_LEN] &= ~(1L << (bit & (ZEND_MM_BITSET_LEN-1)));
}
! static zend_always_inline void zend_mm_bitset_set_range(zend_mm_bitset *bitset, int start, int len)
{
! if (len == 1) {
! zend_mm_bitset_set_bit(bitset, start);
! } else {
! int pos = start / ZEND_MM_BITSET_LEN;
! int end = (start + len - 1) / ZEND_MM_BITSET_LEN;
! int bit = start & (ZEND_MM_BITSET_LEN - 1);
! zend_mm_bitset tmp;
!
! if (pos != end) {
! /* set bits from "bit" to ZEND_MM_BITSET_LEN-1 */
! tmp = (zend_mm_bitset)-1 << bit;
! bitset[pos++] |= tmp;
! while (pos != end) {
! /* set all bits */
! bitset[pos++] = (zend_mm_bitset)-1;
! }
! end = (start + len - 1) & (ZEND_MM_BITSET_LEN - 1);
! /* set bits from "0" to "end" */
! tmp = (zend_mm_bitset)-1 >> ((ZEND_MM_BITSET_LEN - 1) - end);
! bitset[pos] |= tmp;
! } else {
! end = (start + len - 1) & (ZEND_MM_BITSET_LEN - 1);
! /* set bits from "bit" to "end" */
! tmp = (zend_mm_bitset)-1 << bit;
! tmp &= (zend_mm_bitset)-1 >> ((ZEND_MM_BITSET_LEN - 1) - end);
! bitset[pos] |= tmp;
! }
! }
}
! static zend_always_inline void zend_mm_bitset_reset_range(zend_mm_bitset *bitset, int start, int len)
{
! if (len == 1) {
! zend_mm_bitset_reset_bit(bitset, start);
! } else {
! int pos = start / ZEND_MM_BITSET_LEN;
! int end = (start + len - 1) / ZEND_MM_BITSET_LEN;
! int bit = start & (ZEND_MM_BITSET_LEN - 1);
! zend_mm_bitset tmp;
!
! if (pos != end) {
! /* reset bits from "bit" to ZEND_MM_BITSET_LEN-1 */
! tmp = ~((1L << bit) - 1);
! bitset[pos++] &= ~tmp;
! while (pos != end) {
! /* set all bits */
! bitset[pos++] = 0;
! }
! end = (start + len - 1) & (ZEND_MM_BITSET_LEN - 1);
! /* reset bits from "0" to "end" */
! tmp = (zend_mm_bitset)-1 >> ((ZEND_MM_BITSET_LEN - 1) - end);
! bitset[pos] &= ~tmp;
! } else {
! end = (start + len - 1) & (ZEND_MM_BITSET_LEN - 1);
! /* reset bits from "bit" to "end" */
! tmp = (zend_mm_bitset)-1 << bit;
! tmp &= (zend_mm_bitset)-1 >> ((ZEND_MM_BITSET_LEN - 1) - end);
! bitset[pos] &= ~tmp;
! }
! }
}
! static zend_always_inline int zend_mm_bitset_is_free_range(zend_mm_bitset *bitset, int start, int len)
! {
! if (len == 1) {
! return !zend_mm_bitset_is_set(bitset, start);
! } else {
! int pos = start / ZEND_MM_BITSET_LEN;
! int end = (start + len - 1) / ZEND_MM_BITSET_LEN;
! int bit = start & (ZEND_MM_BITSET_LEN - 1);
! zend_mm_bitset tmp;
!
! if (pos != end) {
! /* set bits from "bit" to ZEND_MM_BITSET_LEN-1 */
! tmp = (zend_mm_bitset)-1 << bit;
! if ((bitset[pos++] & tmp) != 0) {
! return 0;
! }
! while (pos != end) {
! /* set all bits */
! if (bitset[pos++] != 0) {
! return 0;
! }
! }
! end = (start + len - 1) & (ZEND_MM_BITSET_LEN - 1);
! /* set bits from "0" to "end" */
! tmp = (zend_mm_bitset)-1 >> ((ZEND_MM_BITSET_LEN - 1) - end);
! return (bitset[pos] & tmp) == 0;
! } else {
! end = (start + len - 1) & (ZEND_MM_BITSET_LEN - 1);
! /* set bits from "bit" to "end" */
! tmp = (zend_mm_bitset)-1 << bit;
! tmp &= (zend_mm_bitset)-1 >> ((ZEND_MM_BITSET_LEN - 1) - end);
! return (bitset[pos] & tmp) == 0;
! }
! }
! }
! /**********/
! /* Chunks */
! /**********/
! static void *zend_mm_chunk_alloc(size_t size, size_t alignment)
! {
! void *ptr = zend_mm_mmap(size);
+ if (ptr == NULL) {
+ return NULL;
+ } else if (ZEND_MM_ALIGNED_OFFSET(ptr, alignment) == 0) {
+ #ifdef MADV_HUGEPAGE
+ madvise(ptr, size, MADV_HUGEPAGE);
#endif
+ return ptr;
+ } else {
+ size_t offset;
! /* chunk has to be aligned */
! zend_mm_munmap(ptr, size);
! ptr = zend_mm_mmap(size + alignment - ZEND_MM_PAGE_SIZE);
! #ifdef _WIN32
! offset = ZEND_MM_ALIGNED_OFFSET(ptr, alignment);
! zend_mm_munmap(ptr, size + alignment - ZEND_MM_PAGE_SIZE);
! ptr = zend_mm_mmap_fixed((void*)((char*)ptr + (alignment - offset)), size);
! offset = ZEND_MM_ALIGNED_OFFSET(ptr, alignment);
! if (offset != 0) {
! zend_mm_munmap(ptr, size);
! return NULL;
! }
! return ptr;
! #else
! offset = ZEND_MM_ALIGNED_OFFSET(ptr, alignment);
! if (offset != 0) {
! offset = alignment - offset;
! zend_mm_munmap(ptr, offset);
! ptr = (char*)ptr + offset;
! } else {
! zend_mm_munmap((char*)ptr + size, alignment - ZEND_MM_PAGE_SIZE);
! }
! # ifdef MADV_HUGEPAGE
! madvise(ptr, size, MADV_HUGEPAGE);
# endif
#endif
! return ptr;
! }
! }
! static zend_always_inline void zend_mm_chunk_init(zend_mm_heap *heap, zend_mm_chunk *chunk)
! {
! chunk->heap = heap;
! chunk->next = heap->main_chunk;
! chunk->prev = heap->main_chunk->prev;
! chunk->prev->next = chunk;
! chunk->next->prev = chunk;
! /* mark first pages as allocated */
! chunk->free_pages = ZEND_MM_PAGES - ZEND_MM_FIRST_PAGE;
! chunk->free_tail = ZEND_MM_FIRST_PAGE;
! /* the younger chunks have bigger number */
! chunk->num = chunk->prev->num + 1;
! /* mark first pages as allocated */
! chunk->free_map[0] = (1L << ZEND_MM_FIRST_PAGE) - 1;
! chunk->map[0] = ZEND_MM_LRUN(ZEND_MM_FIRST_PAGE);
! }
!
! /***********************/
! /* Huge Runs (forward) */
! /***********************/
!
! static size_t zend_mm_get_huge_block_size(zend_mm_heap *heap, void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
! static void *zend_mm_alloc_huge(zend_mm_heap *heap, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
! static void zend_mm_free_huge(zend_mm_heap *heap, void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
! #if ZEND_DEBUG
! static void zend_mm_change_huge_block_size(zend_mm_heap *heap, void *ptr, size_t size, size_t dbg_size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
#else
! static void zend_mm_change_huge_block_size(zend_mm_heap *heap, void *ptr, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
#endif
! /**************/
! /* Large Runs */
! /**************/
! #if ZEND_DEBUG
! static void *zend_mm_alloc_pages(zend_mm_heap *heap, int pages_count, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
#else
! static void *zend_mm_alloc_pages(zend_mm_heap *heap, int pages_count ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
#endif
+ {
+ zend_mm_chunk *chunk = heap->main_chunk;
+ int page_num, len;
! while (1) {
! if (UNEXPECTED(chunk->free_pages < pages_count)) {
! goto not_found;
! #if 0
! } else if (UNEXPECTED(chunk->free_pages + chunk->free_tail == ZEND_MM_PAGES)) {
! if (UNEXPECTED(ZEND_MM_PAGES - chunk->free_tail < pages_count)) {
! goto not_found;
! } else {
! page_num = chunk->free_tail;
! goto found;
! }
! } else if (0) {
! /* First-Fit Search */
! int free_tail = chunk->free_tail;
! zend_mm_bitset *bitset = chunk->free_map;
! zend_mm_bitset tmp = *(bitset++);
! int i = 0;
! while (1) {
! /* skip allocated blocks */
! while (tmp == (zend_mm_bitset)-1) {
! i += ZEND_MM_BITSET_LEN;
! if (i == ZEND_MM_PAGES) {
! goto not_found;
! }
! tmp = *(bitset++);
! }
! /* find first 0 bit */
! page_num = i + zend_mm_bitset_nts(tmp);
! /* reset bits from 0 to "bit" */
! tmp &= tmp + 1;
! /* skip free blocks */
! while (tmp == 0) {
! i += ZEND_MM_BITSET_LEN;
! len = i - page_num;
! if (len >= pages_count) {
! goto found;
! } else if (i >= free_tail) {
! goto not_found;
! }
! tmp = *(bitset++);
! }
! /* find first 1 bit */
! len = (i + zend_mm_bitset_ntz(tmp)) - page_num;
! if (len >= pages_count) {
! goto found;
! }
! /* set bits from 0 to "bit" */
! tmp |= tmp - 1;
! }
! #endif
! } else {
! /* Best-Fit Search */
! int best = -1;
! int best_len = ZEND_MM_PAGES;
! int free_tail = chunk->free_tail;
! zend_mm_bitset *bitset = chunk->free_map;
! zend_mm_bitset tmp = *(bitset++);
! int i = 0;
! while (1) {
! /* skip allocated blocks */
! while (tmp == (zend_mm_bitset)-1) {
! i += ZEND_MM_BITSET_LEN;
! if (i == ZEND_MM_PAGES) {
! if (best > 0) {
! page_num = best;
! goto found;
! } else {
! goto not_found;
! }
! }
! tmp = *(bitset++);
! }
! /* find first 0 bit */
! page_num = i + zend_mm_bitset_nts(tmp);
! /* reset bits from 0 to "bit" */
! tmp &= tmp + 1;
! /* skip free blocks */
! while (tmp == 0) {
! i += ZEND_MM_BITSET_LEN;
! if (i >= free_tail) {
! len = ZEND_MM_PAGES - page_num;
! if (len >= pages_count && len < best_len) {
! chunk->free_tail = page_num + pages_count;
! goto found;
! } else {
! /* set accurate value */
! chunk->free_tail = page_num;
! if (best > 0) {
! page_num = best;
! goto found;
! } else {
! goto not_found;
! }
! }
! }
! tmp = *(bitset++);
! }
! /* find first 1 bit */
! len = i + zend_mm_bitset_ntz(tmp) - page_num;
! if (len >= pages_count) {
! if (len == pages_count) {
! goto found;
! } else if (len < best_len) {
! best_len = len;
! best = page_num;
! }
! }
! /* set bits from 0 to "bit" */
! tmp |= tmp - 1;
! }
! }
! not_found:
! if (chunk->next == heap->main_chunk) {
! if (heap->cached_chunks) {
! heap->cached_chunks_count--;
! chunk = heap->cached_chunks;
! heap->cached_chunks = chunk->next;
! } else {
! #if ZEND_MM_LIMIT
! if (heap->real_size + ZEND_MM_CHUNK_SIZE > heap->limit) {
! if (heap->overflow == 0) {
#if ZEND_DEBUG
! zend_mm_safe_error(heap, "Allowed memory size of %ld bytes exhausted at %s:%d (tried to allocate %lu bytes)", heap->limit, __zend_filename, __zend_lineno, size);
#else
! zend_mm_safe_error(heap, "Allowed memory size of %ld bytes exhausted (tried to allocate %lu bytes)", heap->limit, ZEND_MM_PAGE_SIZE * pages_count);
#endif
! return NULL;
! }
! }
#endif
+ chunk = (zend_mm_chunk*)zend_mm_chunk_alloc(ZEND_MM_CHUNK_SIZE, ZEND_MM_CHUNK_SIZE);
+ if (UNEXPECTED(chunk == NULL)) {
+ /* insufficient memory */
+ return NULL;
+ }
+ #if ZEND_MM_STAT
+ do {
+ size_t size = heap->real_size + ZEND_MM_CHUNK_SIZE;
+ size_t peak = MAX(heap->real_peak, size);
+ heap->real_size = size;
+ heap->real_peak = peak;
+ } while (0);
+ #elif ZEND_MM_LIMIT
+ heap->real_size += ZEND_MM_CHUNK_SIZE;
#endif
! }
! heap->chunks_count++;
! if (heap->chunks_count > heap->peak_chunks_count) {
! heap->peak_chunks_count = heap->chunks_count;
! }
! zend_mm_chunk_init(heap, chunk);
! page_num = ZEND_MM_FIRST_PAGE;
! len = ZEND_MM_PAGES - ZEND_MM_FIRST_PAGE;
! goto found;
! } else {
! chunk = chunk->next;
! }
}
!
! found:
! /* mark run as allocated */
! chunk->free_pages -= pages_count;
! zend_mm_bitset_set_range(chunk->free_map, page_num, pages_count);
! chunk->map[page_num] = ZEND_MM_LRUN(pages_count);
! if (page_num == chunk->free_tail) {
! chunk->free_tail = page_num + pages_count;
}
! return ZEND_MM_PAGE_ADDR(chunk, page_num);
}
! static zend_always_inline void *zend_mm_alloc_large(zend_mm_heap *heap, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! int pages_count = ZEND_MM_SIZE_TO_NUM(size, ZEND_MM_PAGE_SIZE);
! #if ZEND_DEBUG
! void *ptr = zend_mm_alloc_pages(heap, pages_count, size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
#else
! void *ptr = zend_mm_alloc_pages(heap, pages_count ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
#endif
+ #if ZEND_MM_STAT
+ do {
+ size_t size = heap->size + pages_count * ZEND_MM_PAGE_SIZE;
+ size_t peak = MAX(heap->peak, size);
+ heap->size = size;
+ heap->peak = peak;
+ } while (0);
+ #endif
+ return ptr;
}
! static void zend_mm_free_pages(zend_mm_heap *heap, zend_mm_chunk *chunk, int page_num, int pages_count)
{
! chunk->free_pages += pages_count;
! zend_mm_bitset_reset_range(chunk->free_map, page_num, pages_count);
! chunk->map[page_num] = 0;
! if (chunk->free_tail == page_num + pages_count) {
! /* this setting may be not accurate */
! chunk->free_tail = page_num;
! }
! if (chunk->free_pages == ZEND_MM_PAGES - ZEND_MM_FIRST_PAGE) {
! /* delete chunk */
! chunk->next->prev = chunk->prev;
! chunk->prev->next = chunk->next;
! heap->chunks_count--;
! if (heap->chunks_count + heap->cached_chunks_count < heap->avg_chunks_count + 0.1) {
! /* delay deletion */
! heap->cached_chunks_count++;
! chunk->next = heap->cached_chunks;
! heap->cached_chunks = chunk;
} else {
! #if ZEND_MM_STAT || ZEND_MM_LIMIT
! heap->real_size -= ZEND_MM_CHUNK_SIZE;
! #endif
! if (!heap->cached_chunks || chunk->num > heap->cached_chunks->num) {
! zend_mm_munmap(chunk, ZEND_MM_CHUNK_SIZE);
! } else {
! //TODO: select the best chunk to delete???
! chunk->next = heap->cached_chunks->next;
! zend_mm_munmap(heap->cached_chunks, ZEND_MM_CHUNK_SIZE);
! heap->cached_chunks = chunk;
}
}
}
}
! static zend_always_inline void zend_mm_free_large(zend_mm_heap *heap, zend_mm_chunk *chunk, int page_num, int pages_count)
{
! #if ZEND_MM_STAT
! heap->size -= pages_count * ZEND_MM_PAGE_SIZE;
#endif
+ zend_mm_free_pages(heap, chunk, page_num, pages_count);
+ }
! /**************/
! /* Small Runs */
! /**************/
! /* higher set bit number (0->0, 1->1, 2->2, 4->3, 8->4, 127->7, 128->8 etc) */
! static zend_always_inline int zend_mm_small_size_to_bit(int size)
! {
! #if defined(__GNUC__)
! return (__builtin_clz(size) ^ 0x1f) + 1;
! #else
! int n = 16;
! if (size == 0) return 0;
! if (size <= 0x00ff) {n -= 8; size = size << 8;}
! if (size <= 0x0fff) {n -= 4; size = size << 4;}
! if (size <= 0x3fff) {n -= 2; size = size << 2;}
! if (size <= 0x7fff) {n -= 1;}
! return n;
#endif
}
! #ifndef MAX
! # define MAX(a, b) (((a) > (b)) ? (a) : (b))
! #endif
! #ifndef MIN
! # define MIN(a, b) (((a) < (b)) ? (a) : (b))
! #endif
! static zend_always_inline int zend_mm_small_size_to_bin(size_t size)
{
! #if 0
! int n;
! /*0, 1, 2, 3, 4, 5, 6, 7, 8, 9 10, 11, 12*/
! static const int f1[] = { 3, 3, 3, 3, 3, 3, 3, 4, 5, 6, 7, 8, 9};
! static const int f2[] = { 0, 0, 0, 0, 0, 0, 0, 4, 8, 12, 16, 20, 24};
!
! if (UNEXPECTED(size <= 2)) return 0;
! n = zend_mm_small_size_to_bit(size - 1);
! return ((size-1) >> f1[n]) + f2[n];
! #else
! int t1, t2, t3;
! if (UNEXPECTED(size <= 8)) return 0;
! t1 = (int)(size - 1);
! t2 = zend_mm_small_size_to_bit(t1);
! t3 = t2 - 6;
! t3 = (t3 < 0) ? 0 : t3;
! t2 = t3 + 3;
! t1 = t1 >> t2;
! t3 = t3 << 2;
! return t1 + t3;
#endif
}
! #define ZEND_MM_SMALL_SIZE_TO_BIN(size) zend_mm_small_size_to_bin(size)
! static zend_never_inline void *zend_mm_alloc_small_slow(zend_mm_heap *heap, int bin_num ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! zend_mm_chunk *chunk;
! int page_num;
! zend_mm_bin *bin;
! zend_mm_free_slot *p, *end;
! #if ZEND_DEBUG
! bin = (zend_mm_bin*)zend_mm_alloc_pages(heap, bin_pages[bin_num], bin_data_size[bin_num] ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! #else
! bin = (zend_mm_bin*)zend_mm_alloc_pages(heap, bin_pages[bin_num] ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
#endif
! if (UNEXPECTED(bin == NULL)) {
! /* insufficient memory */
! return NULL;
}
! chunk = (zend_mm_chunk*)ZEND_MM_ALIGNED_BASE(bin, ZEND_MM_CHUNK_SIZE);
! page_num = ZEND_MM_ALIGNED_OFFSET(bin, ZEND_MM_CHUNK_SIZE) / ZEND_MM_PAGE_SIZE;
! chunk->map[page_num] = ZEND_MM_SRUN(bin_num);
! if (bin_pages[bin_num] > 1) {
! int i = 1;
do {
! chunk->map[page_num+i] = ZEND_MM_SRUN(bin_num);
! i++;
! } while (i < bin_pages[bin_num]);
}
! /* create a linked list of elements from 1 to last */
! end = (zend_mm_free_slot*)((char*)bin + (bin_data_size[bin_num] * (bin_elements[bin_num] - 1)));
! heap->free_slot[bin_num] = p = (zend_mm_free_slot*)((char*)bin + bin_data_size[bin_num]);
! do {
! p->next_free_slot = (zend_mm_free_slot*)((char*)p + bin_data_size[bin_num]);;
! #if ZEND_DEBUG
do {
! zend_mm_debug_info *dbg = (zend_mm_debug_info*)((char*)p + bin_data_size[bin_num] - ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_debug_info)));
! dbg->size = 0;
! } while (0);
#endif
+ p = (zend_mm_free_slot*)((char*)p + bin_data_size[bin_num]);
+ } while (p != end);
! /* terminate list using NULL */
! p->next_free_slot = NULL;
! #if ZEND_DEBUG
! do {
! zend_mm_debug_info *dbg = (zend_mm_debug_info*)((char*)p + bin_data_size[bin_num] - ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_debug_info)));
! dbg->size = 0;
! } while (0);
#endif
! /* return first element */
! return (char*)bin;
! }
! static zend_always_inline void *zend_mm_alloc_small(zend_mm_heap *heap, size_t size, int bin_num ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
! {
! #if ZEND_MM_STAT
! do {
! size_t size = heap->size + bin_data_size[bin_num];
! size_t peak = MAX(heap->peak, size);
! heap->size = size;
! heap->peak = peak;
! } while (0);
#endif
! if (EXPECTED(heap->free_slot[bin_num] != NULL)) {
! zend_mm_free_slot *p = heap->free_slot[bin_num];
! heap->free_slot[bin_num] = p->next_free_slot;
! return (void*)p;
! } else {
! return zend_mm_alloc_small_slow(heap, bin_num ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
}
! static zend_always_inline void zend_mm_free_small(zend_mm_heap *heap, void *ptr, int bin_num)
{
! zend_mm_free_slot *p;
! #if ZEND_MM_STAT
! heap->size -= bin_data_size[bin_num];
#endif
! #if ZEND_DEBUG
! do {
! zend_mm_debug_info *dbg = (zend_mm_debug_info*)((char*)ptr + bin_data_size[bin_num] - ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_debug_info)));
! dbg->size = 0;
! } while (0);
#endif
! p = (zend_mm_free_slot*)ptr;
! p->next_free_slot = heap->free_slot[bin_num];
! heap->free_slot[bin_num] = p;
}
+ /********/
+ /* Heap */
+ /********/
+
#if ZEND_DEBUG
! static zend_always_inline zend_mm_debug_info *zend_mm_get_debug_info(zend_mm_heap *heap, void *ptr)
{
! size_t page_offset = ZEND_MM_ALIGNED_OFFSET(ptr, ZEND_MM_CHUNK_SIZE);
! zend_mm_chunk *chunk;
! int page_num;
! zend_mm_page_info info;
! ZEND_MM_CHECK(page_offset != 0, "zend_mm_heap corrupted");
! chunk = (zend_mm_chunk*)ZEND_MM_ALIGNED_BASE(ptr, ZEND_MM_CHUNK_SIZE);
! page_num = page_offset / ZEND_MM_PAGE_SIZE;
! info = chunk->map[page_num];
! ZEND_MM_CHECK(chunk->heap == heap, "zend_mm_heap corrupted");
! if (EXPECTED(info & ZEND_MM_IS_SRUN)) {
! int bin_num = ZEND_MM_SRUN_BIN_NUM(info);
! return (zend_mm_debug_info*)((char*)ptr + bin_data_size[bin_num] - ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_debug_info)));
! } else /* if (info & ZEND_MM_IS_LRUN) */ {
! int pages_count = ZEND_MM_LRUN_PAGES(info);
!
! return (zend_mm_debug_info*)((char*)ptr + ZEND_MM_PAGE_SIZE * pages_count - ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_debug_info)));
}
}
+ #endif
! static zend_always_inline void *zend_mm_alloc_heap(zend_mm_heap *heap, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! void *ptr;
! #if ZEND_DEBUG
! size_t real_size = size;
! zend_mm_debug_info *dbg;
! size = ZEND_MM_ALIGNED_SIZE(size) + ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_debug_info));
#endif
! if (size <= ZEND_MM_MAX_SMALL_SIZE) {
! ptr = zend_mm_alloc_small(heap, size, ZEND_MM_SMALL_SIZE_TO_BIN(size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! #if ZEND_DEBUG
! dbg = zend_mm_get_debug_info(heap, ptr);
! dbg->size = real_size;
! dbg->filename = __zend_filename;
! dbg->orig_filename = __zend_orig_filename;
! dbg->lineno = __zend_lineno;
! dbg->orig_lineno = __zend_orig_lineno;
! #endif
! return ptr;
! } else if (size <= ZEND_MM_MAX_LARGE_SIZE) {
! ptr = zend_mm_alloc_large(heap, size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! #if ZEND_DEBUG
! dbg = zend_mm_get_debug_info(heap, ptr);
! dbg->size = real_size;
! dbg->filename = __zend_filename;
! dbg->orig_filename = __zend_orig_filename;
! dbg->lineno = __zend_lineno;
! dbg->orig_lineno = __zend_orig_lineno;
! #endif
! return ptr;
! } else {
! #if ZEND_DEBUG
! size = real_size;
! #endif
! return zend_mm_alloc_huge(heap, size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
}
! static zend_always_inline void zend_mm_free_heap(zend_mm_heap *heap, void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! size_t page_offset = ZEND_MM_ALIGNED_OFFSET(ptr, ZEND_MM_CHUNK_SIZE);
! if (UNEXPECTED(page_offset == 0)) {
! if (ptr != NULL) {
! zend_mm_free_huge(heap, ptr ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! } else {
! zend_mm_chunk *chunk = (zend_mm_chunk*)ZEND_MM_ALIGNED_BASE(ptr, ZEND_MM_CHUNK_SIZE);
! int page_num = page_offset / ZEND_MM_PAGE_SIZE;
! zend_mm_page_info info = chunk->map[page_num];
! ZEND_MM_CHECK(chunk->heap == heap, "zend_mm_heap corrupted");
! if (EXPECTED(info & ZEND_MM_IS_SRUN)) {
! zend_mm_free_small(heap, ptr, ZEND_MM_SRUN_BIN_NUM(info));
! } else /* if (info & ZEND_MM_IS_LRUN) */ {
! int pages_count = ZEND_MM_LRUN_PAGES(info);
! ZEND_MM_CHECK(ZEND_MM_ALIGNED_OFFSET(page_offset, ZEND_MM_PAGE_SIZE) == 0, "zend_mm_heap corrupted");
! zend_mm_free_large(heap, chunk, page_num, pages_count);
}
}
! }
! static size_t zend_mm_size(zend_mm_heap *heap, void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
! {
! size_t page_offset = ZEND_MM_ALIGNED_OFFSET(ptr, ZEND_MM_CHUNK_SIZE);
! if (UNEXPECTED(page_offset == 0)) {
! return zend_mm_get_huge_block_size(heap, ptr ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
} else {
! zend_mm_chunk *chunk;
! #if 0 && ZEND_DEBUG
! zend_mm_debug_info *dbg = zend_mm_get_debug_info(heap, ptr);
! return dbg->size;
! #else
! int page_num;
! zend_mm_page_info info;
! chunk = (zend_mm_chunk*)ZEND_MM_ALIGNED_BASE(ptr, ZEND_MM_CHUNK_SIZE);
! page_num = page_offset / ZEND_MM_PAGE_SIZE;
! info = chunk->map[page_num];
! ZEND_MM_CHECK(chunk->heap == heap, "zend_mm_heap corrupted");
! if (EXPECTED(info & ZEND_MM_IS_SRUN)) {
! return bin_data_size[ZEND_MM_SRUN_BIN_NUM(info)];
! } else /* if (info & ZEND_MM_IS_LARGE_RUN) */ {
! return ZEND_MM_LRUN_PAGES(info) * ZEND_MM_PAGE_SIZE;
}
#endif
}
}
! static void *zend_mm_realloc_heap(zend_mm_heap *heap, void *ptr, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! size_t page_offset;
! size_t old_size;
! size_t new_size;
! void *ret;
! #if ZEND_DEBUG
! size_t real_size;
! zend_mm_debug_info *dbg;
#endif
! page_offset = ZEND_MM_ALIGNED_OFFSET(ptr, ZEND_MM_CHUNK_SIZE);
! if (UNEXPECTED(page_offset == 0)) {
! if (UNEXPECTED(ptr == NULL)) {
! return zend_mm_alloc_heap(heap, size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! old_size = zend_mm_get_huge_block_size(heap, ptr ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
#if ZEND_DEBUG
! real_size = size;
! size = ZEND_MM_ALIGNED_SIZE(size) + ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_debug_info));
#endif
! if (size > ZEND_MM_MAX_LARGE_SIZE) {
! #if ZEND_DEBUG
! size = real_size;
#endif
! new_size = ZEND_MM_ALIGNED_SIZE_EX(size, ZEND_MM_PAGE_SIZE);
! if (new_size == old_size) {
#if ZEND_DEBUG
! zend_mm_change_huge_block_size(heap, ptr, new_size, real_size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! #else
! zend_mm_change_huge_block_size(heap, ptr, new_size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
#endif
! return ptr;
! #ifndef _WIN32
! } else if (new_size < old_size) {
! /* unmup tail */
! zend_mm_munmap((char*)ptr + new_size, old_size - new_size);
! #if ZEND_MM_STAT || ZEND_MM_LIMIT
! heap->real_size -= old_size - new_size;
#endif
! #if ZEND_MM_STAT
! heap->size -= old_size - new_size;
#endif
#if ZEND_DEBUG
! zend_mm_change_huge_block_size(heap, ptr, new_size, real_size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! #else
! zend_mm_change_huge_block_size(heap, ptr, new_size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
#endif
! return ptr;
! } else /* if (new_size > old_size) */ {
! #if ZEND_MM_LIMIT
! if (heap->real_size + (new_size - old_size) > heap->limit) {
! if (heap->overflow == 0) {
#if ZEND_DEBUG
! zend_mm_safe_error(heap, "Allowed memory size of %ld bytes exhausted at %s:%d (tried to allocate %lu bytes)", heap->limit, __zend_filename, __zend_lineno, size);
! #else
! zend_mm_safe_error(heap, "Allowed memory size of %ld bytes exhausted (tried to allocate %lu bytes)", heap->limit, size);
#endif
! return NULL;
! }
}
! #endif
! /* try to map tail right after this block */
! if (zend_mm_mmap_fixed((char*)ptr + old_size, new_size - old_size)) {
! #if ZEND_MM_STAT || ZEND_MM_LIMIT
! heap->real_size += new_size - old_size;
! #endif
! #if ZEND_MM_STAT
! heap->size += new_size - old_size;
! #endif
! #if ZEND_DEBUG
! zend_mm_change_huge_block_size(heap, ptr, new_size, real_size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! #else
! zend_mm_change_huge_block_size(heap, ptr, new_size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! #endif
! return ptr;
}
! #endif
}
}
+ } else {
+ zend_mm_chunk *chunk = (zend_mm_chunk*)ZEND_MM_ALIGNED_BASE(ptr, ZEND_MM_CHUNK_SIZE);
+ int page_num = page_offset / ZEND_MM_PAGE_SIZE;
+ zend_mm_page_info info = chunk->map[page_num];
+ #if ZEND_DEBUG
+ size_t real_size = size;
! size = ZEND_MM_ALIGNED_SIZE(size) + ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_debug_info));
! #endif
! ZEND_MM_CHECK(chunk->heap == heap, "zend_mm_heap corrupted");
! if (info & ZEND_MM_IS_SRUN) {
! int old_bin_num, bin_num;
! old_bin_num = ZEND_MM_SRUN_BIN_NUM(info);
! old_size = bin_data_size[old_bin_num];
! bin_num = ZEND_MM_SMALL_SIZE_TO_BIN(size);
! if (old_bin_num == bin_num) {
! #if ZEND_DEBUG
! dbg = zend_mm_get_debug_info(heap, ptr);
! dbg->size = real_size;
! dbg->filename = __zend_filename;
! dbg->orig_filename = __zend_orig_filename;
! dbg->lineno = __zend_lineno;
! dbg->orig_lineno = __zend_orig_lineno;
! #endif
! return ptr;
! }
! } else /* if (info & ZEND_MM_IS_LARGE_RUN) */ {
! ZEND_MM_CHECK(ZEND_MM_ALIGNED_OFFSET(page_offset, ZEND_MM_PAGE_SIZE) == 0, "zend_mm_heap corrupted");
! old_size = ZEND_MM_LRUN_PAGES(info) * ZEND_MM_PAGE_SIZE;
! if (size > ZEND_MM_MAX_SMALL_SIZE && size <= ZEND_MM_MAX_LARGE_SIZE) {
! new_size = ZEND_MM_ALIGNED_SIZE_EX(size, ZEND_MM_PAGE_SIZE);
! if (new_size == old_size) {
! #if ZEND_DEBUG
! dbg = zend_mm_get_debug_info(heap, ptr);
! dbg->size = real_size;
! dbg->filename = __zend_filename;
! dbg->orig_filename = __zend_orig_filename;
! dbg->lineno = __zend_lineno;
! dbg->orig_lineno = __zend_orig_lineno;
! #endif
! return ptr;
! } else if (new_size < old_size) {
! /* free tail pages */
! int new_pages_count = new_size / ZEND_MM_PAGE_SIZE;
! int rest_pages_count = (old_size - new_size) / ZEND_MM_PAGE_SIZE;
!
! #if ZEND_MM_STAT
! heap->size -= rest_pages_count * ZEND_MM_PAGE_SIZE;
! #endif
! chunk->map[page_num] = ZEND_MM_LRUN(new_pages_count);
! chunk->free_pages += rest_pages_count;
! zend_mm_bitset_reset_range(chunk->free_map, page_num + new_pages_count, rest_pages_count);
! #if ZEND_DEBUG
! dbg = zend_mm_get_debug_info(heap, ptr);
! dbg->size = real_size;
! dbg->filename = __zend_filename;
! dbg->orig_filename = __zend_orig_filename;
! dbg->lineno = __zend_lineno;
! dbg->orig_lineno = __zend_orig_lineno;
! #endif
! return ptr;
! } else /* if (new_size > old_size) */ {
! int new_pages_count = new_size / ZEND_MM_PAGE_SIZE;
! int old_pages_count = old_size / ZEND_MM_PAGE_SIZE;
!
! /* try to allocate tail pages after this block */
! if (page_num + new_pages_count <= ZEND_MM_PAGES &&
! zend_mm_bitset_is_free_range(chunk->free_map, page_num + old_pages_count, new_pages_count - old_pages_count)) {
! #if ZEND_MM_STAT
! do {
! size_t size = heap->size + (new_size - old_size);
! size_t peak = MAX(heap->peak, size);
! heap->size = size;
! heap->peak = peak;
! } while (0);
! #endif
! chunk->free_pages -= new_pages_count - old_pages_count;
! zend_mm_bitset_set_range(chunk->free_map, page_num + old_pages_count, new_pages_count - old_pages_count);
! chunk->map[page_num] = ZEND_MM_LRUN(new_pages_count);
! #if ZEND_DEBUG
! dbg = zend_mm_get_debug_info(heap, ptr);
! dbg->size = real_size;
! dbg->filename = __zend_filename;
! dbg->orig_filename = __zend_orig_filename;
! dbg->lineno = __zend_lineno;
! dbg->orig_lineno = __zend_orig_lineno;
! #endif
! return ptr;
! }
! }
! }
}
+ #if ZEND_DEBUG
+ size = real_size;
+ #endif
}
! /* Naive reallocation */
! old_size = zend_mm_size(heap, ptr ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! ret = zend_mm_alloc_heap(heap, size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! memcpy(ret, ptr, MIN(old_size, size));
! zend_mm_free_heap(heap, ptr ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! return ret;
! }
! /*********************/
! /* Huge Runs (again) */
! /*********************/
! #if ZEND_DEBUG
! static void zend_mm_add_huge_block(zend_mm_heap *heap, void *ptr, size_t size, size_t dbg_size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
! #else
! static void zend_mm_add_huge_block(zend_mm_heap *heap, void *ptr, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
#endif
+ {
+ zend_mm_huge_list *list = (zend_mm_huge_list*)zend_mm_alloc_heap(heap, sizeof(zend_mm_huge_list) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
+ list->ptr = ptr;
+ list->size = size;
+ list->next = heap->huge_list;
+ #if ZEND_DEBUG
+ list->dbg.size = dbg_size;
+ list->dbg.filename = __zend_filename;
+ list->dbg.orig_filename = __zend_orig_filename;
+ list->dbg.lineno = __zend_lineno;
+ list->dbg.orig_lineno = __zend_orig_lineno;
#endif
+ heap->huge_list = list;
+ }
! static size_t zend_mm_del_huge_block(zend_mm_heap *heap, void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
! {
! zend_mm_huge_list *prev = NULL;
! zend_mm_huge_list *list = heap->huge_list;
! while (list != NULL) {
! if (list->ptr == ptr) {
! size_t size;
! if (prev) {
! prev->next = list->next;
! } else {
! heap->huge_list = list->next;
}
! size = list->size;
! zend_mm_free_heap(heap, list ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! return size;
}
+ prev = list;
+ list = list->next;
}
+ ZEND_MM_CHECK(0, "zend_mm_heap corrupted");
+ return 0;
+ }
! static size_t zend_mm_get_huge_block_size(zend_mm_heap *heap, void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
! {
! zend_mm_huge_list *list = heap->huge_list;
! while (list != NULL) {
! if (list->ptr == ptr) {
! return list->size;
}
+ list = list->next;
+ }
+ ZEND_MM_CHECK(0, "zend_mm_heap corrupted");
+ return 0;
+ }
#if ZEND_DEBUG
! static void zend_mm_change_huge_block_size(zend_mm_heap *heap, void *ptr, size_t size, size_t dbg_size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
#else
! static void zend_mm_change_huge_block_size(zend_mm_heap *heap, void *ptr, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
#endif
+ {
+ zend_mm_huge_list *list = heap->huge_list;
+ while (list != NULL) {
+ if (list->ptr == ptr) {
+ list->size = size;
+ #if ZEND_DEBUG
+ list->dbg.size = dbg_size;
+ list->dbg.filename = __zend_filename;
+ list->dbg.orig_filename = __zend_orig_filename;
+ list->dbg.lineno = __zend_lineno;
+ list->dbg.orig_lineno = __zend_orig_lineno;
+ #endif
+ return;
}
+ list = list->next;
+ }
+ }
! static void *zend_mm_alloc_huge(zend_mm_heap *heap, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
! {
! size_t new_size = ZEND_MM_ALIGNED_SIZE_EX(size, ZEND_MM_PAGE_SIZE);
! void *ptr;
! #if ZEND_MM_LIMIT
! if (heap->real_size + new_size > heap->limit) {
! if (heap->overflow == 0) {
#if ZEND_DEBUG
! zend_mm_safe_error(heap, "Allowed memory size of %ld bytes exhausted at %s:%d (tried to allocate %lu bytes)", heap->limit, __zend_filename, __zend_lineno, size);
#else
! zend_mm_safe_error(heap, "Allowed memory size of %ld bytes exhausted (tried to allocate %lu bytes)", heap->limit, size);
#endif
return NULL;
}
}
! #endif
! ptr = zend_mm_chunk_alloc(new_size, ZEND_MM_CHUNK_SIZE);
! if (UNEXPECTED(ptr == NULL)) {
! /* insufficient memory */
! return NULL;
}
! #if ZEND_DEBUG
! zend_mm_add_huge_block(heap, ptr, new_size, size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! #else
! zend_mm_add_huge_block(heap, ptr, new_size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! #endif
! #if ZEND_MM_STAT
! do {
! size_t size = heap->real_size + new_size;
! size_t peak = MAX(heap->real_peak, size);
! heap->real_size = size;
! heap->real_peak = peak;
! } while (0);
! do {
! size_t size = heap->size + new_size;
! size_t peak = MAX(heap->peak, size);
! heap->size = size;
! heap->peak = peak;
! } while (0);
! #elif ZEND_MM_LIMIT
! heap->real_size += new_size;
! #endif
! return ptr;
}
! static void zend_mm_free_huge(zend_mm_heap *heap, void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
size_t size;
! ZEND_MM_CHECK(ZEND_MM_ALIGNED_OFFSET(ptr, ZEND_MM_CHUNK_SIZE) == 0, "zend_mm_heap corrupted");
! size = zend_mm_del_huge_block(heap, ptr ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! zend_mm_munmap(ptr, size);
! #if ZEND_MM_STAT || ZEND_MM_LIMIT
! heap->real_size -= size;
#endif
! #if ZEND_MM_STAT
heap->size -= size;
#endif
! }
! /******************/
! /* Initialization */
! /******************/
! zend_mm_heap *zend_mm_init(void)
! {
! zend_mm_chunk *chunk = (zend_mm_chunk*)zend_mm_chunk_alloc(ZEND_MM_CHUNK_SIZE, ZEND_MM_CHUNK_SIZE);
! zend_mm_heap *heap;
! if (UNEXPECTED(chunk == NULL)) {
! #if ZEND_MM_ERROR
! fprintf(stderr, "\nCan't initialize heap: [%d] %s\n", errno, strerror(errno));
! #endif
! return NULL;
}
+ heap = &chunk->heap_slot;
+ chunk->heap = heap;
+ chunk->next = chunk;
+ chunk->prev = chunk;
+ chunk->free_pages = ZEND_MM_PAGES - ZEND_MM_FIRST_PAGE;
+ chunk->free_tail = ZEND_MM_FIRST_PAGE;
+ chunk->num = 0;
+ chunk->free_map[0] = (1L << ZEND_MM_FIRST_PAGE) - 1;
+ chunk->map[0] = ZEND_MM_LRUN(ZEND_MM_FIRST_PAGE);
+ heap->main_chunk = chunk;
+ heap->cached_chunks = NULL;
+ heap->chunks_count = 1;
+ heap->peak_chunks_count = 1;
+ heap->cached_chunks_count = 0;
+ heap->avg_chunks_count = 1.0;
+ #if ZEND_MM_STAT || ZEND_MM_LIMIT
+ heap->real_size = ZEND_MM_CHUNK_SIZE;
+ #endif
+ #if ZEND_MM_STAT
+ heap->real_peak = ZEND_MM_CHUNK_SIZE;
+ heap->size = 0;
+ heap->peak = 0;
+ #endif
+ #if ZEND_MM_LIMIT
+ heap->limit = (-1L >> 1);
+ heap->overflow = 0;
+ #endif
+ #if ZEND_MM_CUSTOM
+ heap->use_custom_heap = 0;
+ #endif
+ heap->huge_list = NULL;
+ return heap;
+ }
! #if ZEND_DEBUG
! /******************/
! /* Leak detection */
! /******************/
!
! static long zend_mm_find_leaks_small(zend_mm_chunk *p, int i, int j, zend_leak_info *leak)
! {
! int empty = 1;
! long count = 0;
! int bin_num = ZEND_MM_SRUN_BIN_NUM(p->map[i]);
! zend_mm_debug_info *dbg = (zend_mm_debug_info*)((char*)p + ZEND_MM_PAGE_SIZE * i + bin_data_size[bin_num] * (j + 1) - ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_debug_info)));
!
! while (j < bin_elements[bin_num]) {
! if (dbg->size != 0) {
! if (dbg->filename == leak->filename && dbg->lineno == leak->lineno) {
! count++;
! dbg->size = 0;
! dbg->filename = NULL;
! dbg->lineno = 0;
! } else {
! empty = 0;
}
}
! j++;
! dbg = (zend_mm_debug_info*)((char*)dbg + bin_data_size[bin_num]);
}
! if (empty) {
! zend_mm_bitset_reset_range(p->free_map, i, bin_pages[bin_num]);
}
! return count;
! }
! static long zend_mm_find_leaks(zend_mm_heap *heap, zend_mm_chunk *p, int i, zend_leak_info *leak)
! {
! long count = 0;
! do {
! while (i < p->free_tail) {
! if (zend_mm_bitset_is_set(p->free_map, i)) {
! if (p->map[i] & ZEND_MM_IS_SRUN) {
! int bin_num = ZEND_MM_SRUN_BIN_NUM(p->map[i]);
! count += zend_mm_find_leaks_small(p, i, 0, leak);
! i += bin_pages[bin_num];
! } else /* if (p->map[i] & ZEND_MM_IS_LRUN) */ {
! int pages_count = ZEND_MM_LRUN_PAGES(p->map[i]);
! zend_mm_debug_info *dbg = (zend_mm_debug_info*)((char*)p + ZEND_MM_PAGE_SIZE * (i + pages_count) - ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_debug_info)));
! if (dbg->filename == leak->filename && dbg->lineno == leak->lineno) {
! count++;
! }
! zend_mm_bitset_reset_range(p->free_map, i, pages_count);
! i += pages_count;
}
+ } else {
+ i++;
}
}
+ p = p->next;
+ } while (p != heap->main_chunk);
+ return count;
+ }
! static void zend_mm_check_leaks(zend_mm_heap *heap TSRMLS_DC)
! {
! zend_mm_huge_list *list;
! zend_mm_chunk *p;
! zend_leak_info leak;
! long repeated = 0;
! zend_uint total = 0;
! int i, j;
! /* find leaked huge blocks and free them */
! list = heap->huge_list;
! while (list) {
! zend_mm_huge_list *q = list;
!
! heap->huge_list = list->next;
!
! leak.addr = list->ptr;
! leak.size = list->dbg.size;
! leak.filename = list->dbg.filename;
! leak.orig_filename = list->dbg.orig_filename;
! leak.lineno = list->dbg.lineno;
! leak.orig_lineno = list->dbg.orig_lineno;
! zend_message_dispatcher(ZMSG_LOG_SCRIPT_NAME, NULL TSRMLS_CC);
! zend_message_dispatcher(ZMSG_MEMORY_LEAK_DETECTED, &leak TSRMLS_CC);
! //??? repeated = zend_mm_find_leaks_huge(segment, p);
! total += 1 + repeated;
! if (repeated) {
! zend_message_dispatcher(ZMSG_MEMORY_LEAK_REPEATED, (void *)(zend_uintptr_t)repeated TSRMLS_CC);
! }
!
! list = list->next;
! zend_mm_munmap(q->ptr, q->size);
! zend_mm_free_heap(heap, q, NULL, 0, NULL, 0);
! }
!
! /* mark all small free blocks as free (set dbg.size to 0) */
! //??? for (i = 0; i < ZEND_MM_BINS; i++) {
! //??? zend_mm_free_slot *q = heap->free_slot[i];
! //??? while (q != NULL) {
! //??? zend_mm_debug_info *dbg = (zend_mm_debug_info*)((char*)q + bin_data_size[i] - ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_debug_info)));
! //??? dbg->size = 0;
! //??? q = q->next_free_slot;
! //??? }
! //??? }
!
! /* for each chunk */
! p = heap->main_chunk;
! do {
! i = ZEND_MM_FIRST_PAGE;
! while (i < p->free_tail) {
! if (zend_mm_bitset_is_set(p->free_map, i)) {
! if (p->map[i] & ZEND_MM_IS_SRUN) {
! int bin_num = ZEND_MM_SRUN_BIN_NUM(p->map[i]);
! zend_mm_debug_info *dbg = (zend_mm_debug_info*)((char*)p + ZEND_MM_PAGE_SIZE * i + bin_data_size[bin_num] - ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_debug_info)));
!
! j = 0;
! while (j < bin_elements[bin_num]) {
! if (dbg->size != 0) {
! leak.addr = (zend_mm_debug_info*)((char*)p + ZEND_MM_PAGE_SIZE * i + bin_data_size[bin_num] * j);
! leak.size = dbg->size;
! leak.filename = dbg->filename;
! leak.orig_filename = dbg->orig_filename;
! leak.lineno = dbg->lineno;
! leak.orig_lineno = dbg->orig_lineno;
!
! zend_message_dispatcher(ZMSG_LOG_SCRIPT_NAME, NULL TSRMLS_CC);
! zend_message_dispatcher(ZMSG_MEMORY_LEAK_DETECTED, &leak TSRMLS_CC);
!
! dbg->size = 0;
! dbg->filename = NULL;
! dbg->lineno = 0;
!
! repeated = zend_mm_find_leaks_small(p, i, j + 1, &leak) +
! zend_mm_find_leaks(heap, p, i + bin_pages[bin_num], &leak);
! total += 1 + repeated;
! if (repeated) {
! zend_message_dispatcher(ZMSG_MEMORY_LEAK_REPEATED, (void *)(zend_uintptr_t)repeated TSRMLS_CC);
! }
! }
! dbg = (zend_mm_debug_info*)((char*)dbg + bin_data_size[bin_num]);
! j++;
! }
! i += bin_pages[bin_num];
! } else /* if (p->map[i] & ZEND_MM_IS_LRUN) */ {
! int pages_count = ZEND_MM_LRUN_PAGES(p->map[i]);
! zend_mm_debug_info *dbg = (zend_mm_debug_info*)((char*)p + ZEND_MM_PAGE_SIZE * (i + pages_count) - ZEND_MM_ALIGNED_SIZE(sizeof(zend_mm_debug_info)));
!
! leak.addr = (void*)((char*)p + ZEND_MM_PAGE_SIZE * i);
! leak.size = dbg->size;
! leak.filename = dbg->filename;
! leak.orig_filename = dbg->orig_filename;
! leak.lineno = dbg->lineno;
! leak.orig_lineno = dbg->orig_lineno;
!
! zend_message_dispatcher(ZMSG_LOG_SCRIPT_NAME, NULL TSRMLS_CC);
! zend_message_dispatcher(ZMSG_MEMORY_LEAK_DETECTED, &leak TSRMLS_CC);
!
! zend_mm_bitset_reset_range(p->free_map, i, pages_count);
!
! repeated = zend_mm_find_leaks(heap, p, i + pages_count, &leak);
! total += 1 + repeated;
! if (repeated) {
! zend_message_dispatcher(ZMSG_MEMORY_LEAK_REPEATED, (void *)(zend_uintptr_t)repeated TSRMLS_CC);
! }
! i += pages_count;
! }
! } else {
! i++;
}
}
+ p = p->next;
+ } while (p != heap->main_chunk);
+ if (total) {
+ zend_message_dispatcher(ZMSG_MEMORY_LEAKS_GRAND_TOTAL, &total TSRMLS_CC);
+ }
+ }
+ #endif
! void zend_mm_shutdown(zend_mm_heap *heap, int full, int silent TSRMLS_DC)
! {
! zend_mm_chunk *p;
! zend_mm_huge_list *list;
! #if ZEND_MM_CUSTOM
! if (heap->use_custom_heap) {
! return;
! }
! #endif
! #if ZEND_DEBUG
! if (!silent) {
! zend_mm_check_leaks(heap TSRMLS_CC);
! }
! #endif
! /* free huge blocks */
! list = heap->huge_list;
! while (list) {
! zend_mm_huge_list *q = list;
! list = list->next;
! zend_mm_munmap(q->ptr, q->size);
! }
! /* move all chunks except of the first one into the cache */
! p = heap->main_chunk->next;
! while (p != heap->main_chunk) {
! zend_mm_chunk *q = p->next;
! p->next = heap->cached_chunks;
! heap->cached_chunks = p;
! p = q;
! heap->chunks_count--;
! heap->cached_chunks_count++;
! }
! if (full) {
! /* free all cached chunks */
! while (heap->cached_chunks) {
! p = heap->cached_chunks;
! heap->cached_chunks = p->next;
! zend_mm_munmap(p, ZEND_MM_CHUNK_SIZE);
}
+ /* free the first chunk */
+ zend_mm_munmap(heap->main_chunk, ZEND_MM_CHUNK_SIZE);
+ } else {
+ zend_mm_heap old_heap;
! /* free some cached chunks to keep average count */
! heap->avg_chunks_count = (heap->avg_chunks_count + (double)heap->peak_chunks_count) / 2.0;
! while ((double)heap->cached_chunks_count + 0.9 > heap->avg_chunks_count &&
! heap->cached_chunks) {
! p = heap->cached_chunks;
! heap->cached_chunks = p->next;
! zend_mm_munmap(p, ZEND_MM_CHUNK_SIZE);
! heap->cached_chunks_count--;
! }
! /* clear cached chunks */
! p = heap->cached_chunks;
! while (p != NULL) {
! zend_mm_chunk *q = p->next;
! memset(p, 0, sizeof(zend_mm_chunk));
! p->next = q;
! p = q;
! }
!
! /* reinitialize the first chunk and heap */
! old_heap = *heap;
! p = heap->main_chunk;
! memset(p, 0, ZEND_MM_FIRST_PAGE * ZEND_MM_PAGE_SIZE);
! *heap = old_heap;
! memset(heap->free_slot, 0, sizeof(heap->free_slot));
! heap->main_chunk = p;
! p->heap = &p->heap_slot;
! p->next = p;
! p->prev = p;
! p->free_pages = ZEND_MM_PAGES - ZEND_MM_FIRST_PAGE;
! p->free_tail = ZEND_MM_FIRST_PAGE;
! p->free_map[0] = (1L << ZEND_MM_FIRST_PAGE) - 1;
! p->map[0] = ZEND_MM_LRUN(ZEND_MM_FIRST_PAGE);
! heap->chunks_count = 1;
! heap->peak_chunks_count = 1;
! #if ZEND_MM_STAT || ZEND_MM_LIMIT
! heap->real_size = ZEND_MM_CHUNK_SIZE;
! #endif
! #if ZEND_MM_STAT
! heap->real_peak = ZEND_MM_CHUNK_SIZE;
#endif
! }
}
+ /**************/
+ /* PUBLIC API */
+ /**************/
+
ZEND_API void *_zend_mm_alloc(zend_mm_heap *heap, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! return zend_mm_alloc_heap(heap, size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! ZEND_API void _zend_mm_free(zend_mm_heap *heap, void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! zend_mm_free_heap(heap, ptr ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! void *_zend_mm_realloc(zend_mm_heap *heap, void *ptr, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! return zend_mm_realloc_heap(heap, ptr, size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! ZEND_API size_t _zend_mm_block_size(zend_mm_heap *heap, void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! return zend_mm_size(heap, ptr ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
/**********************/
***************
*** 2416,2461 ****
ZEND_API int is_zend_mm(TSRMLS_D)
{
! return AG(mm_heap)->use_zend_alloc;
}
! ZEND_API void *_emalloc(size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
TSRMLS_FETCH();
! if (UNEXPECTED(!AG(mm_heap)->use_zend_alloc)) {
return AG(mm_heap)->_malloc(size);
}
! return _zend_mm_alloc_int(AG(mm_heap), size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! ZEND_API void _efree(void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
TSRMLS_FETCH();
! if (UNEXPECTED(!AG(mm_heap)->use_zend_alloc)) {
AG(mm_heap)->_free(ptr);
return;
}
! _zend_mm_free_int(AG(mm_heap), ptr ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! ZEND_API void *_erealloc(void *ptr, size_t size, int allow_failure ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
TSRMLS_FETCH();
! if (UNEXPECTED(!AG(mm_heap)->use_zend_alloc)) {
return AG(mm_heap)->_realloc(ptr, size);
}
! return _zend_mm_realloc_int(AG(mm_heap), ptr, size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! ZEND_API size_t _zend_mem_block_size(void *ptr TSRMLS_DC ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! if (UNEXPECTED(!AG(mm_heap)->use_zend_alloc)) {
return 0;
}
! return _zend_mm_block_size(AG(mm_heap), ptr ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
#if defined(__GNUC__) && (defined(__native_client__) || defined(i386))
--- 1949,2092 ----
ZEND_API int is_zend_mm(TSRMLS_D)
{
! #if ZEND_MM_CUSTOM
! return !AG(mm_heap)->use_custom_heap;
! #else
! return 1;
! #endif
! }
!
! #if !ZEND_DEBUG && !defined(_WIN32)
! #undef _emalloc
!
! #if ZEND_MM_CUSTOM
! # define ZEND_MM_CUSTOM_ALLOCATOR(size) do { \
! if (UNEXPECTED(AG(mm_heap)->use_custom_heap)) { \
! return AG(mm_heap)->_malloc(size); \
! } \
! } while (0)
! # define ZEND_MM_CUSTOM_DEALLOCATOR(ptr) do { \
! if (UNEXPECTED(AG(mm_heap)->use_custom_heap)) { \
! AG(mm_heap)->_free(ptr); \
! return; \
! } \
! } while (0)
! #else
! # define ZEND_MM_CUSTOM_ALLOCATOR(size)
! # define ZEND_MM_CUSTOM_DEALLOCATOR(ptr)
! #endif
!
! # define _ZEND_BIN_ALLOCATOR(_num, _size, _elements, _pages, x, y) \
! ZEND_API void* ZEND_FASTCALL _emalloc_ ## _size(void) { \
! TSRMLS_FETCH(); \
! ZEND_MM_CUSTOM_ALLOCATOR(_size); \
! return zend_mm_alloc_small(AG(mm_heap), _size, _num ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC); \
! }
!
! ZEND_MM_BINS_INFO(_ZEND_BIN_ALLOCATOR, x, y)
!
! ZEND_API void* ZEND_FASTCALL _emalloc_large(size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
! {
! TSRMLS_FETCH();
!
! ZEND_MM_CUSTOM_ALLOCATOR(size);
! return zend_mm_alloc_large(AG(mm_heap), size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! }
!
! ZEND_API void* ZEND_FASTCALL _emalloc_huge(size_t size)
! {
! TSRMLS_FETCH();
!
! ZEND_MM_CUSTOM_ALLOCATOR(size);
! return zend_mm_alloc_huge(AG(mm_heap), size);
! }
!
! # define _ZEND_BIN_FREE(_num, _size, _elements, _pages, x, y) \
! ZEND_API void ZEND_FASTCALL _efree_ ## _size(void *ptr) { \
! TSRMLS_FETCH(); \
! ZEND_MM_CUSTOM_DEALLOCATOR(ptr); \
! { \
! size_t page_offset = ZEND_MM_ALIGNED_OFFSET(ptr, ZEND_MM_CHUNK_SIZE); \
! zend_mm_chunk *chunk = (zend_mm_chunk*)ZEND_MM_ALIGNED_BASE(ptr, ZEND_MM_CHUNK_SIZE); \
! int page_num = page_offset / ZEND_MM_PAGE_SIZE; \
! ZEND_MM_CHECK(chunk->heap == AG(mm_heap), "zend_mm_heap corrupted"); \
! ZEND_ASSERT(chunk->map[page_num] & ZEND_MM_IS_SRUN); \
! ZEND_ASSERT(ZEND_MM_SRUN_BIN_NUM(chunk->map[page_num]) == _num); \
! zend_mm_free_small(AG(mm_heap), ptr, _num); \
! } \
! }
!
! ZEND_MM_BINS_INFO(_ZEND_BIN_FREE, x, y)
!
! ZEND_API void ZEND_FASTCALL _efree_large(void *ptr, size_t size)
! {
! TSRMLS_FETCH();
!
! ZEND_MM_CUSTOM_DEALLOCATOR(ptr);
! {
! size_t page_offset = ZEND_MM_ALIGNED_OFFSET(ptr, ZEND_MM_CHUNK_SIZE);
! zend_mm_chunk *chunk = (zend_mm_chunk*)ZEND_MM_ALIGNED_BASE(ptr, ZEND_MM_CHUNK_SIZE);
! int page_num = page_offset / ZEND_MM_PAGE_SIZE;
! int pages_count = ZEND_MM_ALIGNED_SIZE_EX(size, ZEND_MM_PAGE_SIZE) / ZEND_MM_PAGE_SIZE;
!
! ZEND_MM_CHECK(chunk->heap == AG(mm_heap) && ZEND_MM_ALIGNED_OFFSET(page_offset, ZEND_MM_PAGE_SIZE) == 0, "zend_mm_heap corrupted");
! ZEND_ASSERT(chunk->map[page_num] & ZEND_MM_IS_LRUN);
! ZEND_ASSERT(ZEND_MM_LRUN_PAGES(chunk->map[page_num]) == pages_count);
! zend_mm_free_large(AG(mm_heap), chunk, page_num, pages_count);
! }
! }
!
! ZEND_API void ZEND_FASTCALL _efree_huge(void *ptr, size_t size)
! {
! TSRMLS_FETCH();
!
! ZEND_MM_CUSTOM_DEALLOCATOR(ptr);
! // TODO: use size???
! zend_mm_free_huge(AG(mm_heap), ptr);
}
+ #endif
! ZEND_API void* ZEND_FASTCALL _emalloc(size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
TSRMLS_FETCH();
! #if ZEND_MM_CUSTOM
! if (UNEXPECTED(AG(mm_heap)->use_custom_heap)) {
return AG(mm_heap)->_malloc(size);
}
! #endif
! return zend_mm_alloc_heap(AG(mm_heap), size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! ZEND_API void ZEND_FASTCALL _efree(void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
TSRMLS_FETCH();
! #if ZEND_MM_CUSTOM
! if (UNEXPECTED(AG(mm_heap)->use_custom_heap)) {
AG(mm_heap)->_free(ptr);
return;
}
! #endif
! zend_mm_free_heap(AG(mm_heap), ptr ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! ZEND_API void* ZEND_FASTCALL _erealloc(void *ptr, size_t size, int allow_failure ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
TSRMLS_FETCH();
! if (UNEXPECTED(AG(mm_heap)->use_custom_heap)) {
return AG(mm_heap)->_realloc(ptr, size);
}
! return zend_mm_realloc_heap(AG(mm_heap), ptr, size ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
! ZEND_API size_t ZEND_FASTCALL _zend_mem_block_size(void *ptr TSRMLS_DC ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
! if (UNEXPECTED(AG(mm_heap)->use_custom_heap)) {
return 0;
}
! return zend_mm_size(AG(mm_heap), ptr ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
}
#if defined(__GNUC__) && (defined(__native_client__) || defined(i386))
***************
*** 2470,2476 ****
: "%0"(res),
"rm"(size),
"rm"(offset));
!
if (UNEXPECTED(overflow)) {
zend_error_noreturn(E_ERROR, "Possible integer overflow in memory allocation (%zu * %zu + %zu)", nmemb, size, offset);
return 0;
--- 2101,2107 ----
: "%0"(res),
"rm"(size),
"rm"(offset));
!
if (UNEXPECTED(overflow)) {
zend_error_noreturn(E_ERROR, "Possible integer overflow in memory allocation (%zu * %zu + %zu)", nmemb, size, offset);
return 0;
***************
*** 2578,2605 ****
#endif
! ZEND_API void *_safe_emalloc(size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
return emalloc_rel(safe_address(nmemb, size, offset));
}
! ZEND_API void *_safe_malloc(size_t nmemb, size_t size, size_t offset)
{
return pemalloc(safe_address(nmemb, size, offset), 1);
}
! ZEND_API void *_safe_erealloc(void *ptr, size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
return erealloc_rel(ptr, safe_address(nmemb, size, offset));
}
! ZEND_API void *_safe_realloc(void *ptr, size_t nmemb, size_t size, size_t offset)
{
return perealloc(ptr, safe_address(nmemb, size, offset), 1);
}
! ZEND_API void *_ecalloc(size_t nmemb, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
void *p;
#ifdef ZEND_SIGNALS
--- 2209,2236 ----
#endif
! ZEND_API void* ZEND_FASTCALL _safe_emalloc(size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
return emalloc_rel(safe_address(nmemb, size, offset));
}
! ZEND_API void* ZEND_FASTCALL _safe_malloc(size_t nmemb, size_t size, size_t offset)
{
return pemalloc(safe_address(nmemb, size, offset), 1);
}
! ZEND_API void* ZEND_FASTCALL _safe_erealloc(void *ptr, size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
return erealloc_rel(ptr, safe_address(nmemb, size, offset));
}
! ZEND_API void* ZEND_FASTCALL _safe_realloc(void *ptr, size_t nmemb, size_t size, size_t offset)
{
return perealloc(ptr, safe_address(nmemb, size, offset), 1);
}
! ZEND_API void* ZEND_FASTCALL _ecalloc(size_t nmemb, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
void *p;
#ifdef ZEND_SIGNALS
***************
*** 2617,2623 ****
return p;
}
! ZEND_API char *_estrdup(const char *s ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
int length;
char *p;
--- 2248,2254 ----
return p;
}
! ZEND_API char* ZEND_FASTCALL _estrdup(const char *s ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
int length;
char *p;
***************
*** 2638,2644 ****
return p;
}
! ZEND_API char *_estrndup(const char *s, uint length ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
char *p;
#ifdef ZEND_SIGNALS
--- 2269,2275 ----
return p;
}
! ZEND_API char* ZEND_FASTCALL _estrndup(const char *s, uint length ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
{
char *p;
#ifdef ZEND_SIGNALS
***************
*** 2659,2665 ****
}
! ZEND_API char *zend_strndup(const char *s, uint length)
{
char *p;
#ifdef ZEND_SIGNALS
--- 2290,2296 ----
}
! ZEND_API char* ZEND_FASTCALL zend_strndup(const char *s, uint length)
{
char *p;
#ifdef ZEND_SIGNALS
***************
*** 2682,2716 ****
}
! ZEND_API int zend_set_memory_limit(size_t memory_limit)
{
! TSRMLS_FETCH();
!
! AG(mm_heap)->limit = (memory_limit >= AG(mm_heap)->block_size) ? memory_limit : AG(mm_heap)->block_size;
!
return SUCCESS;
}
ZEND_API size_t zend_memory_usage(int real_usage TSRMLS_DC)
{
if (real_usage) {
return AG(mm_heap)->real_size;
} else {
size_t usage = AG(mm_heap)->size;
- #if ZEND_MM_CACHE
- usage -= AG(mm_heap)->cached;
- #endif
return usage;
}
}
ZEND_API size_t zend_memory_peak_usage(int real_usage TSRMLS_DC)
{
if (real_usage) {
return AG(mm_heap)->real_peak;
} else {
return AG(mm_heap)->peak;
}
}
ZEND_API void shutdown_memory_manager(int silent, int full_shutdown TSRMLS_DC)
--- 2313,2349 ----
}
! ZEND_API int zend_set_memory_limit(size_t memory_limit TSRMLS_DC)
{
! #if ZEND_MM_LIMIT
! AG(mm_heap)->limit = (memory_limit >= ZEND_MM_CHUNK_SIZE) ? memory_limit : ZEND_MM_CHUNK_SIZE;
! #endif
return SUCCESS;
}
ZEND_API size_t zend_memory_usage(int real_usage TSRMLS_DC)
{
+ #if ZEND_MM_STAT
if (real_usage) {
return AG(mm_heap)->real_size;
} else {
size_t usage = AG(mm_heap)->size;
return usage;
}
+ #endif
+ return 0;
}
ZEND_API size_t zend_memory_peak_usage(int real_usage TSRMLS_DC)
{
+ #if ZEND_MM_STAT
if (real_usage) {
return AG(mm_heap)->real_peak;
} else {
return AG(mm_heap)->peak;
}
+ #endif
+ return 0;
}
ZEND_API void shutdown_memory_manager(int silent, int full_shutdown TSRMLS_DC)
***************
*** 2720,2737 ****
static void alloc_globals_ctor(zend_alloc_globals *alloc_globals TSRMLS_DC)
{
char *tmp = getenv("USE_ZEND_ALLOC");
if (tmp && !zend_atoi(tmp, 0)) {
! alloc_globals->mm_heap = malloc(sizeof(struct _zend_mm_heap));
! memset(alloc_globals->mm_heap, 0, sizeof(struct _zend_mm_heap));
! alloc_globals->mm_heap->use_zend_alloc = 0;
alloc_globals->mm_heap->_malloc = malloc;
alloc_globals->mm_heap->_free = free;
alloc_globals->mm_heap->_realloc = realloc;
! } else {
! alloc_globals->mm_heap = zend_mm_startup();
}
}
#ifdef ZTS
--- 2353,2372 ----
static void alloc_globals_ctor(zend_alloc_globals *alloc_globals TSRMLS_DC)
{
+ #if ZEND_MM_CUSTOM
char *tmp = getenv("USE_ZEND_ALLOC");
if (tmp && !zend_atoi(tmp, 0)) {
! alloc_globals->mm_heap = malloc(sizeof(zend_mm_heap));
! memset(alloc_globals->mm_heap, 0, sizeof(zend_mm_heap));
! alloc_globals->mm_heap->use_custom_heap = 1;
alloc_globals->mm_heap->_malloc = malloc;
alloc_globals->mm_heap->_free = free;
alloc_globals->mm_heap->_realloc = realloc;
! return;
}
+ #endif
+ alloc_globals->mm_heap = zend_mm_init();
}
#ifdef ZTS
***************
*** 2755,2767 ****
zend_mm_heap *old_heap;
old_heap = AG(mm_heap);
! AG(mm_heap) = new_heap;
! return old_heap;
}
ZEND_API zend_mm_storage *zend_mm_get_storage(zend_mm_heap *heap)
{
! return heap->storage;
}
ZEND_API void zend_mm_set_custom_handlers(zend_mm_heap *heap,
--- 2390,2403 ----
zend_mm_heap *old_heap;
old_heap = AG(mm_heap);
! AG(mm_heap) = (zend_mm_heap*)new_heap;
! return (zend_mm_heap*)old_heap;
}
ZEND_API zend_mm_storage *zend_mm_get_storage(zend_mm_heap *heap)
{
! // return heap->storage;???
! return NULL;
}
ZEND_API void zend_mm_set_custom_handlers(zend_mm_heap *heap,
***************
*** 2769,2810 ****
void (*_free)(void*),
void* (*_realloc)(void*, size_t))
{
! heap->use_zend_alloc = 0;
! heap->_malloc = _malloc;
! heap->_free = _free;
! heap->_realloc = _realloc;
! }
!
! #if ZEND_DEBUG
! ZEND_API int _mem_block_check(void *ptr, int silent ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
! {
! TSRMLS_FETCH();
!
! if (!AG(mm_heap)->use_zend_alloc) {
! return 1;
! }
! return zend_mm_check_ptr(AG(mm_heap), ptr, silent ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
! }
!
!
! ZEND_API void _full_mem_check(int silent ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
! {
! int errors;
! TSRMLS_FETCH();
!
! if (!AG(mm_heap)->use_zend_alloc) {
! return;
! }
! zend_debug_alloc_output("------------------------------------------------\n");
! zend_debug_alloc_output("Full Memory Check at %s:%d\n" ZEND_FILE_LINE_RELAY_CC);
!
! errors = zend_mm_check_heap(AG(mm_heap), silent ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_ORIG_RELAY_CC);
!
! zend_debug_alloc_output("End of full memory check %s:%d (%d errors)\n" ZEND_FILE_LINE_RELAY_CC, errors);
! zend_debug_alloc_output("------------------------------------------------\n");
! }
#endif
/*
* Local variables:
--- 2405,2419 ----
void (*_free)(void*),
void* (*_realloc)(void*, size_t))
{
! #if ZEND_MM_CUSTOM
! zend_mm_heap *_heap = (zend_mm_heap*)heap;
! _heap->use_custom_heap = 1;
! _heap->_malloc = _malloc;
! _heap->_free = _free;
! _heap->_realloc = _realloc;
#endif
+ }
/*
* Local variables:
diff -c -r php-5.6.2-orig/Zend/zend_alloc.h php-5.6.2/Zend/zend_alloc.h
*** php-5.6.2-orig/Zend/zend_alloc.h 2014-10-15 21:59:32.000000000 +0900
--- php-5.6.2/Zend/zend_alloc.h 2014-11-02 13:33:26.000000000 +0900
***************
*** 52,75 ****
BEGIN_EXTERN_C()
! ZEND_API char *zend_strndup(const char *s, unsigned int length) ZEND_ATTRIBUTE_MALLOC;
! ZEND_API void *_emalloc(size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE(1);
! ZEND_API void *_safe_emalloc(size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
! ZEND_API void *_safe_malloc(size_t nmemb, size_t size, size_t offset) ZEND_ATTRIBUTE_MALLOC;
! ZEND_API void _efree(void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
! ZEND_API void *_ecalloc(size_t nmemb, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE2(1,2);
! ZEND_API void *_erealloc(void *ptr, size_t size, int allow_failure ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_ALLOC_SIZE(2);
! ZEND_API void *_safe_erealloc(void *ptr, size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
! ZEND_API void *_safe_realloc(void *ptr, size_t nmemb, size_t size, size_t offset);
! ZEND_API char *_estrdup(const char *s ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
! ZEND_API char *_estrndup(const char *s, unsigned int length ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
! ZEND_API size_t _zend_mem_block_size(void *ptr TSRMLS_DC ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
/* Standard wrapper macros */
#define emalloc(size) _emalloc((size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define safe_emalloc(nmemb, size, offset) _safe_emalloc((nmemb), (size), (offset) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define efree(ptr) _efree((ptr) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define ecalloc(nmemb, size) _ecalloc((nmemb), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define erealloc(ptr, size) _erealloc((ptr), (size), 0 ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define safe_erealloc(ptr, nmemb, size, offset) _safe_erealloc((ptr), (nmemb), (size), (offset) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
--- 52,149 ----
BEGIN_EXTERN_C()
! ZEND_API char* ZEND_FASTCALL zend_strndup(const char *s, unsigned int length) ZEND_ATTRIBUTE_MALLOC;
! ZEND_API void* ZEND_FASTCALL _emalloc(size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE(1);
! ZEND_API void* ZEND_FASTCALL _safe_emalloc(size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
! ZEND_API void* ZEND_FASTCALL _safe_malloc(size_t nmemb, size_t size, size_t offset) ZEND_ATTRIBUTE_MALLOC;
! ZEND_API void ZEND_FASTCALL _efree(void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
! ZEND_API void* ZEND_FASTCALL _ecalloc(size_t nmemb, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE2(1,2);
! ZEND_API void* ZEND_FASTCALL _erealloc(void *ptr, size_t size, int allow_failure ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_ALLOC_SIZE(2);
! ZEND_API void* ZEND_FASTCALL _safe_erealloc(void *ptr, size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
! ZEND_API void* ZEND_FASTCALL _safe_realloc(void *ptr, size_t nmemb, size_t size, size_t offset);
! ZEND_API char* ZEND_FASTCALL _estrdup(const char *s ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
! ZEND_API char* ZEND_FASTCALL _estrndup(const char *s, unsigned int length ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
! ZEND_API size_t ZEND_FASTCALL _zend_mem_block_size(void *ptr TSRMLS_DC ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
!
! #include "zend_alloc_sizes.h"
!
! /* _emalloc() & _efree() specialization */
! #if !ZEND_DEBUG && !defined(_WIN32)
!
! # define _ZEND_BIN_ALLOCATOR_DEF(_num, _size, _elements, _pages, x, y) \
! ZEND_API void* ZEND_FASTCALL _emalloc_ ## _size(void) ZEND_ATTRIBUTE_MALLOC;
!
! ZEND_MM_BINS_INFO(_ZEND_BIN_ALLOCATOR_DEF, x, y)
!
! ZEND_API void* ZEND_FASTCALL _emalloc_large(size_t size) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE(1);
! ZEND_API void* ZEND_FASTCALL _emalloc_huge(size_t size) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE(1);
!
! # define _ZEND_BIN_ALLOCATOR_SELECTOR_START(_num, _size, _elements, _pages, size, y) \
! ((size <= _size) ? _emalloc_ ## _size() :
! # define _ZEND_BIN_ALLOCATOR_SELECTOR_END(_num, _size, _elements, _pages, size, y) \
! )
!
! # define ZEND_ALLOCATOR(size) \
! ZEND_MM_BINS_INFO(_ZEND_BIN_ALLOCATOR_SELECTOR_START, size, y) \
! ((size <= ZEND_MM_MAX_LARGE_SIZE) ? _emalloc_large(size) : _emalloc_huge(size)) \
! ZEND_MM_BINS_INFO(_ZEND_BIN_ALLOCATOR_SELECTOR_END, size, y)
!
! # define _emalloc(size) \
! (__builtin_constant_p(size) ? \
! ZEND_ALLOCATOR(size) \
! : \
! _emalloc(size) \
! )
!
! # define _ZEND_BIN_DEALLOCATOR_DEF(_num, _size, _elements, _pages, x, y) \
! ZEND_API void ZEND_FASTCALL _efree_ ## _size(void *);
!
! ZEND_MM_BINS_INFO(_ZEND_BIN_DEALLOCATOR_DEF, x, y)
!
! ZEND_API void ZEND_FASTCALL _efree_large(void *, size_t size);
! ZEND_API void ZEND_FASTCALL _efree_huge(void *, size_t size);
!
! # define _ZEND_BIN_DEALLOCATOR_SELECTOR_START(_num, _size, _elements, _pages, ptr, size) \
! if (size <= _size) { _efree_ ## _size(ptr); } else
!
! # define ZEND_DEALLOCATOR(ptr, size) \
! ZEND_MM_BINS_INFO(_ZEND_BIN_DEALLOCATOR_SELECTOR_START, ptr, size) \
! if (size <= ZEND_MM_MAX_LARGE_SIZE) { _efree_large(ptr, size); } \
! else { _efree_huge(ptr, size); }
!
! # define efree_size(ptr, size) do { \
! if (__builtin_constant_p(size)) { \
! ZEND_DEALLOCATOR(ptr, size) \
! } else { \
! _efree(ptr); \
! } \
! } while (0)
! # define efree_size_rel(ptr, size) \
! efree_size(ptr, size)
!
! #else
!
! # define efree_size(ptr, size) \
! efree(ptr)
! # define efree_size_rel(ptr, size) \
! efree_rel(ptr)
!
! #define _emalloc_large _emalloc
! #define _emalloc_huge _emalloc
! #define _efree_large _efree
! #define _efree_huge _efree
!
! #endif
/* Standard wrapper macros */
#define emalloc(size) _emalloc((size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
+ #define emalloc_large(size) _emalloc_large((size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
+ #define emalloc_huge(size) _emalloc_huge((size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define safe_emalloc(nmemb, size, offset) _safe_emalloc((nmemb), (size), (offset) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define efree(ptr) _efree((ptr) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
+ #define efree_large(ptr) _efree_large((ptr) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
+ #define efree_huge(ptr) _efree_huge((ptr) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define ecalloc(nmemb, size) _ecalloc((nmemb), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define erealloc(ptr, size) _erealloc((ptr), (size), 0 ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define safe_erealloc(ptr, nmemb, size, offset) _safe_erealloc((ptr), (nmemb), (size), (offset) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
***************
*** 122,127 ****
--- 196,202 ----
#define pemalloc(size, persistent) ((persistent)?__zend_malloc(size):emalloc(size))
#define safe_pemalloc(nmemb, size, offset, persistent) ((persistent)?_safe_malloc(nmemb, size, offset):safe_emalloc(nmemb, size, offset))
#define pefree(ptr, persistent) ((persistent)?free(ptr):efree(ptr))
+ #define pefree_size(ptr, size, persistent) ((persistent)?free(ptr):efree_size(ptr, size))
#define pecalloc(nmemb, size, persistent) ((persistent)?__zend_calloc((nmemb), (size)):ecalloc((nmemb), (size)))
#define perealloc(ptr, size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc((ptr), (size)))
#define safe_perealloc(ptr, nmemb, size, offset, persistent) ((persistent)?_safe_realloc((ptr), (nmemb), (size), (offset)):safe_erealloc((ptr), (nmemb), (size), (offset)))
***************
*** 139,161 ****
#define safe_estrdup(ptr) ((ptr)?(estrdup(ptr)):STR_EMPTY_ALLOC())
#define safe_estrndup(ptr, len) ((ptr)?(estrndup((ptr), (len))):STR_EMPTY_ALLOC())
! ZEND_API int zend_set_memory_limit(size_t memory_limit);
ZEND_API void start_memory_manager(TSRMLS_D);
ZEND_API void shutdown_memory_manager(int silent, int full_shutdown TSRMLS_DC);
ZEND_API int is_zend_mm(TSRMLS_D);
- #if ZEND_DEBUG
- ZEND_API int _mem_block_check(void *ptr, int silent ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
- ZEND_API void _full_mem_check(int silent ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
- void zend_debug_alloc_output(char *format, ...);
- #define mem_block_check(ptr, silent) _mem_block_check(ptr, silent ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
- #define full_mem_check(silent) _full_mem_check(silent ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
- #else
- #define mem_block_check(type, ptr, silent)
- #define full_mem_check(silent)
- #endif
-
ZEND_API size_t zend_memory_usage(int real_usage TSRMLS_DC);
ZEND_API size_t zend_memory_peak_usage(int real_usage TSRMLS_DC);
--- 214,225 ----
#define safe_estrdup(ptr) ((ptr)?(estrdup(ptr)):STR_EMPTY_ALLOC())
#define safe_estrndup(ptr, len) ((ptr)?(estrndup((ptr), (len))):STR_EMPTY_ALLOC())
! ZEND_API int zend_set_memory_limit(size_t memory_limit TSRMLS_DC);
ZEND_API void start_memory_manager(TSRMLS_D);
ZEND_API void shutdown_memory_manager(int silent, int full_shutdown TSRMLS_DC);
ZEND_API int is_zend_mm(TSRMLS_D);
ZEND_API size_t zend_memory_usage(int real_usage TSRMLS_DC);
ZEND_API size_t zend_memory_peak_usage(int real_usage TSRMLS_DC);
***************
*** 179,191 ****
(ht) = (HashTable *) emalloc(sizeof(HashTable))
#define FREE_HASHTABLE(ht) \
! efree(ht)
#define ALLOC_HASHTABLE_REL(ht) \
(ht) = (HashTable *) emalloc_rel(sizeof(HashTable))
#define FREE_HASHTABLE_REL(ht) \
! efree_rel(ht)
/* Heap functions */
typedef struct _zend_mm_heap zend_mm_heap;
--- 243,255 ----
(ht) = (HashTable *) emalloc(sizeof(HashTable))
#define FREE_HASHTABLE(ht) \
! efree_size(ht, sizeof(HashTable))
#define ALLOC_HASHTABLE_REL(ht) \
(ht) = (HashTable *) emalloc_rel(sizeof(HashTable))
#define FREE_HASHTABLE_REL(ht) \
! efree_size_rel(ht, sizeof(HashTable))
/* Heap functions */
typedef struct _zend_mm_heap zend_mm_heap;
diff -c -r php-5.6.2-orig/Zend/zend_alloc_sizes.h php-5.6.2/Zend/zend_alloc_sizes.h
*** php-5.6.2-orig/Zend/zend_alloc_sizes.h 2014-11-02 15:30:45.000000000 +0900
--- php-5.6.2/Zend/zend_alloc_sizes.h 2014-11-02 13:28:05.000000000 +0900
***************
*** 0 ****
--- 1,46 ----
+ #ifndef ZEND_ALLOC_SIZES_H
+ #define ZEND_ALLOC_SIZES_H
+
+ #define ZEND_MM_CHUNK_SIZE (2 * 1024 * 1024) /* 2 MB */
+ #define ZEND_MM_PAGE_SIZE (4 * 1024) /* 4 KB */
+ #define ZEND_MM_PAGES (ZEND_MM_CHUNK_SIZE / ZEND_MM_PAGE_SIZE) /* 512 */
+ #define ZEND_MM_FIRST_PAGE 1
+
+ #define ZEND_MM_MIN_SMALL_SIZE 2
+ #define ZEND_MM_MAX_SMALL_SIZE 3072
+ #define ZEND_MM_MAX_LARGE_SIZE (ZEND_MM_CHUNK_SIZE - (ZEND_MM_PAGE_SIZE * ZEND_MM_FIRST_PAGE))
+
+ /* num, size, offset, count, pages */
+ #define ZEND_MM_BINS_INFO(_, x, y) \
+ _( 0, 8, 512, 1, x, y) \
+ _( 1, 16, 256, 1, x, y) \
+ _( 2, 24, 170, 1, x, y) \
+ _( 3, 32, 128, 1, x, y) \
+ _( 4, 40, 102, 1, x, y) \
+ _( 5, 48, 85, 1, x, y) \
+ _( 6, 56, 73, 1, x, y) \
+ _( 7, 64, 64, 1, x, y) \
+ _( 8, 80, 51, 1, x, y) \
+ _( 9, 96, 42, 1, x, y) \
+ _(10, 112, 36, 1, x, y) \
+ _(11, 128, 32, 1, x, y) \
+ _(12, 160, 25, 1, x, y) \
+ _(13, 192, 21, 1, x, y) \
+ _(14, 224, 18, 1, x, y) \
+ _(15, 256, 16, 1, x, y) \
+ _(16, 320, 64, 5, x, y) \
+ _(17, 384, 32, 3, x, y) \
+ _(18, 448, 9, 1, x, y) \
+ _(19, 512, 8, 1, x, y) \
+ _(20, 640, 32, 5, x, y) \
+ _(21, 768, 16, 3, x, y) \
+ _(22, 896, 9, 2, x, y) \
+ _(23, 1024, 8, 2, x, y) \
+ _(24, 1280, 16, 5, x, y) \
+ _(25, 1536, 8, 3, x, y) \
+ _(26, 1792, 16, 7, x, y) \
+ _(27, 2048, 8, 4, x, y) \
+ _(28, 2560, 8, 5, x, y) \
+ _(29, 3072, 4, 3, x, y)
+
+ #endif /* ZEND_ALLOC_SIZES_H */
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