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funny-falcon/perf_and_gc.diff

Created May 4, 2012 08:47
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Ruby-1.9.3-p194 performance patch
Raw
perf_and_gc.diff
diff --git a/common.mk b/common.mk
index eb89a2b..59cdfe4 100644
--- a/common.mk
+++ b/common.mk
@@ -630,7 +630,8 @@ file.$(OBJEXT): {$(VPATH)}file.c $(RUBY_H_INCLUDES) {$(VPATH)}io.h \
gc.$(OBJEXT): {$(VPATH)}gc.c $(RUBY_H_INCLUDES) {$(VPATH)}re.h \
{$(VPATH)}regex.h $(ENCODING_H_INCLUDES) $(VM_CORE_H_INCLUDES) \
{$(VPATH)}gc.h {$(VPATH)}io.h {$(VPATH)}eval_intern.h {$(VPATH)}util.h \
- {$(VPATH)}debug.h {$(VPATH)}internal.h {$(VPATH)}constant.h
+ {$(VPATH)}debug.h {$(VPATH)}internal.h {$(VPATH)}constant.h \
+ {$(VPATH)}pool_alloc.inc.h {$(VPATH)}pool_alloc.h
hash.$(OBJEXT): {$(VPATH)}hash.c $(RUBY_H_INCLUDES) {$(VPATH)}util.h \
$(ENCODING_H_INCLUDES)
inits.$(OBJEXT): {$(VPATH)}inits.c $(RUBY_H_INCLUDES) \
@@ -693,7 +694,7 @@ signal.$(OBJEXT): {$(VPATH)}signal.c $(RUBY_H_INCLUDES) \
$(VM_CORE_H_INCLUDES) {$(VPATH)}debug.h
sprintf.$(OBJEXT): {$(VPATH)}sprintf.c $(RUBY_H_INCLUDES) {$(VPATH)}re.h \
{$(VPATH)}regex.h {$(VPATH)}vsnprintf.c $(ENCODING_H_INCLUDES)
-st.$(OBJEXT): {$(VPATH)}st.c $(RUBY_H_INCLUDES)
+st.$(OBJEXT): {$(VPATH)}st.c $(RUBY_H_INCLUDES) {$(VPATH)}pool_alloc.h
strftime.$(OBJEXT): {$(VPATH)}strftime.c $(RUBY_H_INCLUDES) \
{$(VPATH)}timev.h
string.$(OBJEXT): {$(VPATH)}string.c $(RUBY_H_INCLUDES) {$(VPATH)}re.h \
diff --git a/configure.in b/configure.in
index 6d24689..1e15b10 100644
--- a/configure.in
+++ b/configure.in
@@ -1315,6 +1315,29 @@ main() {
CFLAGS="$save_CFLAGS"])
AC_DEFINE_UNQUOTED(GC_MARK_STACKFRAME_WORD, $rb_cv_gc_mark_stackframe_word)
+AS_CASE(["$target_os"],
+[openbsd*], [
+ AC_CACHE_CHECK(for heap align log on openbsd, rb_cv_page_size_log,
+ [rb_cv_page_size_log=no
+ for page_log in 12 13; do
+ AC_TRY_RUN([
+#include <math.h>
+#include <unistd.h>
+
+int
+main() {
+ if ((int)log2((double)sysconf(_SC_PAGESIZE)) != $page_log) return 1;
+ return 0;
+}
+ ],
+ rb_cv_page_size_log="$page_log"; break)
+ done])
+ if test $rb_cv_page_size_log != no; then
+ AC_DEFINE_UNQUOTED(HEAP_ALIGN_LOG, $rb_cv_page_size_log)
+ else
+ AC_DEFINE_UNQUOTED(HEAP_ALIGN_LOG, 12)
+ fi
+])
dnl Checks for library functions.
AC_TYPE_GETGROUPS
@@ -1415,7 +1438,8 @@ AC_CHECK_FUNCS(fmod killpg wait4 waitpid fork spawnv syscall __syscall chroot ge
setsid telldir seekdir fchmod cosh sinh tanh log2 round\
setuid setgid daemon select_large_fdset setenv unsetenv\
mktime timegm gmtime_r clock_gettime gettimeofday poll ppoll\
- pread sendfile shutdown sigaltstack dl_iterate_phdr)
+ pread sendfile shutdown sigaltstack dl_iterate_phdr\
+ dup3 pipe2 posix_memalign memalign)
AC_CACHE_CHECK(for unsetenv returns a value, rb_cv_unsetenv_return_value,
[AC_TRY_COMPILE([
diff --git a/ext/-test-/st/numhash/numhash.c b/ext/-test-/st/numhash/numhash.c
index e186cd4..53d9e1b 100644
--- a/ext/-test-/st/numhash/numhash.c
+++ b/ext/-test-/st/numhash/numhash.c
@@ -54,7 +54,7 @@ numhash_i(st_data_t key, st_data_t value, st_data_t arg, int error)
static VALUE
numhash_each(VALUE self)
{
- return st_foreach((st_table *)DATA_PTR(self), numhash_i, self) ? Qtrue : Qfalse;
+ return st_foreach_check((st_table *)DATA_PTR(self), numhash_i, self, 0) ? Qtrue : Qfalse;
}
void
diff --git a/file.c b/file.c
index 67b281a..e89a559 100644
--- a/file.c
+++ b/file.c
@@ -164,6 +164,10 @@ rb_get_path_check(VALUE obj, int level)
}
StringValue(tmp);
+ if (RBASIC(obj)->klass == rb_cExpandedPath) {
+ return obj;
+ }
+
tmp = file_path_convert(tmp);
if (obj != tmp && insecure_obj_p(tmp, level)) {
rb_insecure_operation();
@@ -2864,6 +2868,16 @@ file_expand_path(VALUE fname, VALUE dname, int abs_mode, VALUE result)
BUFINIT();
tainted = OBJ_TAINTED(fname);
+ if (RBASIC(fname)->klass == rb_cExpandedPath) {
+ size_t dlen = RSTRING_LEN(fname);
+ BUFCHECK(dlen > buflen);
+ strncpy(buf, RSTRING_PTR(fname), dlen + 1);
+ rb_str_set_len(result, dlen);
+ rb_enc_associate(result, rb_enc_check(result, fname));
+ ENC_CODERANGE_CLEAR(result);
+ return result;
+ }
+
if (s[0] == '~' && abs_mode == 0) { /* execute only if NOT absolute_path() */
long userlen = 0;
tainted = 1;
diff --git a/gc.c b/gc.c
index e65d0ec..a72a855 100644
--- a/gc.c
+++ b/gc.c
@@ -20,10 +20,12 @@
#include "vm_core.h"
#include "internal.h"
#include "gc.h"
+#include "pool_alloc.h"
#include "constant.h"
#include <stdio.h>
#include <setjmp.h>
#include <sys/types.h>
+#include <assert.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
@@ -35,7 +37,12 @@
#if defined _WIN32 || defined __CYGWIN__
#include <windows.h>
+#elif defined(HAVE_POSIX_MEMALIGN)
+#elif defined(HAVE_MEMALIGN)
+#include <malloc.h>
#endif
+static void aligned_free(void *);
+static void *aligned_malloc(size_t alignment, size_t size);
#ifdef HAVE_VALGRIND_MEMCHECK_H
# include <valgrind/memcheck.h>
@@ -84,10 +91,12 @@ typedef struct {
unsigned int initial_malloc_limit;
unsigned int initial_heap_min_slots;
unsigned int initial_free_min;
+#if defined(ENABLE_VM_OBJSPACE) && ENABLE_VM_OBJSPACE
int gc_stress;
+#endif
} ruby_gc_params_t;
-ruby_gc_params_t initial_params = {
+static ruby_gc_params_t initial_params = {
GC_MALLOC_LIMIT,
HEAP_MIN_SLOTS,
FREE_MIN,
@@ -103,7 +112,10 @@ ruby_gc_params_t initial_params = {
int ruby_gc_debug_indent = 0;
/* for GC profile */
+#ifndef GC_PROFILE_MORE_DETAIL
#define GC_PROFILE_MORE_DETAIL 0
+#endif
+
typedef struct gc_profile_record {
double gc_time;
double gc_mark_time;
@@ -301,17 +313,20 @@ typedef struct RVALUE {
#endif
struct heaps_slot {
- void *membase;
- RVALUE *slot;
- size_t limit;
+ struct heaps_header *membase;
+ RVALUE *freelist;
struct heaps_slot *next;
struct heaps_slot *prev;
+ struct heaps_slot *free_next;
+ uintptr_t bits[1];
};
-struct sorted_heaps_slot {
+struct heaps_header {
+ struct heaps_slot *base;
+ uintptr_t *bits;
RVALUE *start;
RVALUE *end;
- struct heaps_slot *slot;
+ size_t limit;
};
struct gc_list {
@@ -319,7 +334,27 @@ struct gc_list {
struct gc_list *next;
};
+#ifndef CALC_EXACT_MALLOC_SIZE
#define CALC_EXACT_MALLOC_SIZE 0
+#endif
+
+#ifdef POOL_ALLOC_API
+/* POOL ALLOC API */
+#define POOL_ALLOC_PART 1
+#include "pool_alloc.inc.h"
+#undef POOL_ALLOC_PART
+
+typedef struct pool_layout_t pool_layout_t;
+struct pool_layout_t {
+ pool_header
+ p6, /* st_table && st_table_entry */
+ p11; /* st_table.bins init size */
+} pool_layout = {
+ INIT_POOL(void*[6]),
+ INIT_POOL(void*[11])
+};
+static void pool_finalize_header(pool_header *header);
+#endif
typedef struct rb_objspace {
struct {
@@ -330,16 +365,19 @@ typedef struct rb_objspace {
size_t allocations;
#endif
} malloc_params;
+#ifdef POOL_ALLOC_API
+ pool_layout_t *pool_headers;
+#endif
struct {
size_t increment;
struct heaps_slot *ptr;
struct heaps_slot *sweep_slots;
- struct sorted_heaps_slot *sorted;
+ struct heaps_slot *free_slots;
+ struct heaps_header **sorted;
size_t length;
size_t used;
- RVALUE *freelist;
+ struct heaps_slot *reserve_slots;
RVALUE *range[2];
- RVALUE *freed;
size_t live_num;
size_t free_num;
size_t free_min;
@@ -350,6 +388,7 @@ typedef struct rb_objspace {
int dont_gc;
int dont_lazy_sweep;
int during_gc;
+ rb_atomic_t finalizing;
} flags;
struct {
st_table *table;
@@ -377,7 +416,11 @@ typedef struct rb_objspace {
#define ruby_initial_gc_stress initial_params.gc_stress
int *ruby_initial_gc_stress_ptr = &ruby_initial_gc_stress;
#else
+# ifdef POOL_ALLOC_API
+static rb_objspace_t rb_objspace = {{GC_MALLOC_LIMIT}, &pool_layout, {HEAP_MIN_SLOTS}};
+# else
static rb_objspace_t rb_objspace = {{GC_MALLOC_LIMIT}, {HEAP_MIN_SLOTS}};
+# endif
int *ruby_initial_gc_stress_ptr = &rb_objspace.gc_stress;
#endif
#define malloc_limit objspace->malloc_params.limit
@@ -385,13 +428,12 @@ int *ruby_initial_gc_stress_ptr = &rb_objspace.gc_stress;
#define heaps objspace->heap.ptr
#define heaps_length objspace->heap.length
#define heaps_used objspace->heap.used
-#define freelist objspace->heap.freelist
#define lomem objspace->heap.range[0]
#define himem objspace->heap.range[1]
#define heaps_inc objspace->heap.increment
-#define heaps_freed objspace->heap.freed
#define dont_gc objspace->flags.dont_gc
#define during_gc objspace->flags.during_gc
+#define finalizing objspace->flags.finalizing
#define finalizer_table objspace->final.table
#define deferred_final_list objspace->final.deferred
#define mark_stack objspace->markstack.buffer
@@ -403,7 +445,16 @@ int *ruby_initial_gc_stress_ptr = &rb_objspace.gc_stress;
#define initial_heap_min_slots initial_params.initial_heap_min_slots
#define initial_free_min initial_params.initial_free_min
+#define is_lazy_sweeping(objspace) ((objspace)->heap.sweep_slots != 0)
+
+#define nonspecial_obj_id(obj) (VALUE)((SIGNED_VALUE)(obj)|FIXNUM_FLAG)
+
+#define HEAP_HEADER(p) ((struct heaps_header *)(p))
+
static void rb_objspace_call_finalizer(rb_objspace_t *objspace);
+static VALUE define_final0(VALUE obj, VALUE block);
+VALUE rb_define_final(VALUE obj, VALUE block);
+VALUE rb_undefine_final(VALUE obj);
#if defined(ENABLE_VM_OBJSPACE) && ENABLE_VM_OBJSPACE
rb_objspace_t *
@@ -413,6 +464,10 @@ rb_objspace_alloc(void)
memset(objspace, 0, sizeof(*objspace));
malloc_limit = initial_malloc_limit;
ruby_gc_stress = ruby_initial_gc_stress;
+#ifdef POOL_ALLOC_API
+ objspace->pool_headers = (pool_layout_t*) malloc(sizeof(pool_layout));
+ memcpy(objspace->pool_headers, &pool_layout, sizeof(pool_layout));
+#endif
return objspace;
}
@@ -478,40 +533,60 @@ rb_objspace_free(rb_objspace_t *objspace)
struct gc_list *list, *next;
for (list = global_List; list; list = next) {
next = list->next;
- free(list);
+ xfree(list);
}
}
+ if (objspace->heap.reserve_slots) {
+ struct heaps_slot *list, *next;
+ for (list = objspace->heap.reserve_slots; list; list = next) {
+ next = list->free_next;
+ free(list);
+ }
+ }
if (objspace->heap.sorted) {
size_t i;
for (i = 0; i < heaps_used; ++i) {
- free(objspace->heap.sorted[i].slot->membase);
- free(objspace->heap.sorted[i].slot);
+ free(objspace->heap.sorted[i]->base);
+ aligned_free(objspace->heap.sorted[i]);
}
free(objspace->heap.sorted);
heaps_used = 0;
heaps = 0;
}
+#ifdef POOL_ALLOC_API
+ if (objspace->pool_headers) {
+ pool_finalize_header(&objspace->pool_headers->p6);
+ pool_finalize_header(&objspace->pool_headers->p11);
+ free(objspace->pool_headers);
+ }
+#endif
free(objspace);
}
#endif
-/* tiny heap size */
-/* 32KB */
-/*#define HEAP_SIZE 0x8000 */
-/* 128KB */
-/*#define HEAP_SIZE 0x20000 */
-/* 64KB */
-/*#define HEAP_SIZE 0x10000 */
-/* 16KB */
-#define HEAP_SIZE 0x4000
-/* 8KB */
-/*#define HEAP_SIZE 0x2000 */
-/* 4KB */
-/*#define HEAP_SIZE 0x1000 */
-/* 2KB */
-/*#define HEAP_SIZE 0x800 */
-
-#define HEAP_OBJ_LIMIT (unsigned int)(HEAP_SIZE / sizeof(struct RVALUE))
+#ifndef HEAP_ALIGN_LOG
+/* default tiny heap size: 16KB */
+#define HEAP_ALIGN_LOG 15
+#endif
+#define HEAP_ALIGN (1UL << HEAP_ALIGN_LOG)
+#define HEAP_ALIGN_MASK (~(~0UL << HEAP_ALIGN_LOG))
+#define REQUIRED_SIZE_BY_MALLOC (sizeof(size_t) * 5)
+#define HEAP_SIZE (HEAP_ALIGN - REQUIRED_SIZE_BY_MALLOC)
+#define CEILDIV(i, mod) (((i) + (mod) - 1)/(mod))
+
+#define HEAP_OBJ_LIMIT (unsigned int)((HEAP_SIZE - sizeof(struct heaps_header))/sizeof(struct RVALUE))
+#define HEAP_BITMAP_LIMIT CEILDIV(CEILDIV(HEAP_SIZE, sizeof(struct RVALUE)), sizeof(uintptr_t)*8)
+#define HEAP_SLOT_SIZE (sizeof(struct heaps_slot) + (HEAP_BITMAP_LIMIT-1) * sizeof(uintptr_t))
+
+#define GET_HEAP_HEADER(x) (HEAP_HEADER(((uintptr_t)x) & ~(HEAP_ALIGN_MASK)))
+#define GET_HEAP_SLOT(x) (GET_HEAP_HEADER(x)->base)
+#define GET_HEAP_BITMAP(x) (GET_HEAP_HEADER(x)->bits)
+#define NUM_IN_SLOT(p) (((uintptr_t)p & HEAP_ALIGN_MASK)/sizeof(RVALUE))
+#define BITMAP_INDEX(p) (NUM_IN_SLOT(p) / (sizeof(uintptr_t) * 8))
+#define BITMAP_OFFSET(p) (NUM_IN_SLOT(p) & ((sizeof(uintptr_t) * 8)-1))
+#define MARKED_IN_BITMAP(bits, p) (bits[BITMAP_INDEX(p)] & ((uintptr_t)1 << BITMAP_OFFSET(p)))
+#define MARK_IN_BITMAP(bits, p) (bits[BITMAP_INDEX(p)] = bits[BITMAP_INDEX(p)] | ((uintptr_t)1 << BITMAP_OFFSET(p)))
+#define CLEAR_IN_BITMAP(bits, p) (bits[BITMAP_INDEX(p)] &= ~((uintptr_t)1 << BITMAP_OFFSET(p)))
extern st_table *rb_class_tbl;
@@ -823,8 +898,10 @@ vm_xfree(rb_objspace_t *objspace, void *ptr)
size_t size;
ptr = ((size_t *)ptr) - 1;
size = ((size_t*)ptr)[0];
- objspace->malloc_params.allocated_size -= size;
- objspace->malloc_params.allocations--;
+ if (size) {
+ objspace->malloc_params.allocated_size -= size;
+ objspace->malloc_params.allocations--;
+ }
#endif
free(ptr);
@@ -894,6 +971,27 @@ ruby_xfree(void *x)
vm_xfree(&rb_objspace, x);
}
+#ifdef POOL_ALLOC_API
+/* POOL ALLOC API */
+#define POOL_ALLOC_PART 2
+#include "pool_alloc.inc.h"
+#undef POOL_ALLOC_PART
+
+void
+ruby_xpool_free(void *ptr)
+{
+ pool_free_entry((void**)ptr);
+}
+
+#define CONCRET_POOL_MALLOC(pnts) \
+void * ruby_xpool_malloc_##pnts##p () { \
+ return pool_alloc_entry(&rb_objspace.pool_headers->p##pnts ); \
+}
+CONCRET_POOL_MALLOC(6)
+CONCRET_POOL_MALLOC(11)
+#undef CONCRET_POOL_MALLOC
+
+#endif
/*
* call-seq:
@@ -984,70 +1082,140 @@ rb_gc_unregister_address(VALUE *addr)
}
}
-
static void
allocate_sorted_heaps(rb_objspace_t *objspace, size_t next_heaps_length)
{
- struct sorted_heaps_slot *p;
- size_t size;
+ struct heaps_header **p;
+ struct heaps_slot *slot;
+ size_t size, add, i;
- size = next_heaps_length*sizeof(struct sorted_heaps_slot);
+ size = next_heaps_length*sizeof(struct heaps_header *);
+ add = next_heaps_length - heaps_used;
if (heaps_used > 0) {
- p = (struct sorted_heaps_slot *)realloc(objspace->heap.sorted, size);
+ p = (struct heaps_header **)realloc(objspace->heap.sorted, size);
if (p) objspace->heap.sorted = p;
}
else {
- p = objspace->heap.sorted = (struct sorted_heaps_slot *)malloc(size);
+ p = objspace->heap.sorted = (struct heaps_header **)malloc(size);
}
if (p == 0) {
during_gc = 0;
rb_memerror();
}
- heaps_length = next_heaps_length;
+
+ for (i = 0; i < add; i++) {
+ slot = (struct heaps_slot *)malloc(HEAP_SLOT_SIZE);
+ if (slot == 0) {
+ during_gc = 0;
+ rb_memerror();
+ return;
+ }
+ slot->free_next = objspace->heap.reserve_slots;
+ objspace->heap.reserve_slots = slot;
+ }
+}
+
+static void *
+aligned_malloc(size_t alignment, size_t size)
+{
+ void *res;
+
+#if defined __MINGW32__
+ res = __mingw_aligned_malloc(size, alignment);
+#elif defined _WIN32 && !defined __CYGWIN__
+ res = _aligned_malloc(size, alignment);
+#elif defined(HAVE_POSIX_MEMALIGN)
+ if (posix_memalign(&res, alignment, size) == 0) {
+ return res;
+ }
+ else {
+ return NULL;
+ }
+#elif defined(HAVE_MEMALIGN)
+ res = memalign(alignment, size);
+#else
+ char* aligned;
+ res = malloc(alignment + size + sizeof(void*));
+ aligned = (char*)res + alignment + sizeof(void*);
+ aligned -= ((VALUE)aligned & (alignment - 1));
+ ((void**)aligned)[-1] = res;
+ res = (void*)aligned;
+#endif
+
+#if defined(_DEBUG) || defined(GC_DEBUG)
+ /* alignment must be a power of 2 */
+ assert((alignment - 1) & alignment == 0);
+ assert(alignment % sizeof(void*) == 0);
+#endif
+ return res;
+}
+
+static void
+aligned_free(void *ptr)
+{
+#if defined __MINGW32__
+ __mingw_aligned_free(ptr);
+#elif defined _WIN32 && !defined __CYGWIN__
+ _aligned_free(ptr);
+#elif defined(HAVE_MEMALIGN) || defined(HAVE_POSIX_MEMALIGN)
+ free(ptr);
+#else
+ free(((void**)ptr)[-1]);
+#endif
+}
+
+static void
+link_free_heap_slot(rb_objspace_t *objspace, struct heaps_slot *slot)
+{
+ slot->free_next = objspace->heap.free_slots;
+ objspace->heap.free_slots = slot;
+}
+
+static void
+unlink_free_heap_slot(rb_objspace_t *objspace, struct heaps_slot *slot)
+{
+ objspace->heap.free_slots = slot->free_next;
+ slot->free_next = NULL;
}
static void
assign_heap_slot(rb_objspace_t *objspace)
{
- RVALUE *p, *pend, *membase;
+ RVALUE *p, *pend;
+ struct heaps_header *membase;
struct heaps_slot *slot;
size_t hi, lo, mid;
size_t objs;
objs = HEAP_OBJ_LIMIT;
- p = (RVALUE*)malloc(HEAP_SIZE);
- if (p == 0) {
- during_gc = 0;
- rb_memerror();
- }
- slot = (struct heaps_slot *)malloc(sizeof(struct heaps_slot));
- if (slot == 0) {
- xfree(p);
+ membase = (struct heaps_header*)aligned_malloc(HEAP_ALIGN, HEAP_SIZE);
+ if (membase == 0) {
during_gc = 0;
rb_memerror();
}
+ assert(objspace->heap.reserve_slots != NULL);
+ slot = objspace->heap.reserve_slots;
+ objspace->heap.reserve_slots = slot->free_next;
MEMZERO((void*)slot, struct heaps_slot, 1);
slot->next = heaps;
if (heaps) heaps->prev = slot;
heaps = slot;
- membase = p;
+ p = (RVALUE*)((VALUE)membase + sizeof(struct heaps_header));
if ((VALUE)p % sizeof(RVALUE) != 0) {
- p = (RVALUE*)((VALUE)p + sizeof(RVALUE) - ((VALUE)p % sizeof(RVALUE)));
- if ((HEAP_SIZE - HEAP_OBJ_LIMIT * sizeof(RVALUE)) < (size_t)((char*)p - (char*)membase)) {
- objs--;
- }
+ p = (RVALUE*)((VALUE)p + sizeof(RVALUE) - ((VALUE)p % sizeof(RVALUE)));
+ objs = (HEAP_SIZE - (size_t)((VALUE)p - (VALUE)membase))/sizeof(RVALUE);
}
lo = 0;
hi = heaps_used;
while (lo < hi) {
- register RVALUE *mid_membase;
+ register struct heaps_header *mid_membase;
mid = (lo + hi) / 2;
- mid_membase = objspace->heap.sorted[mid].slot->membase;
+ mid_membase = objspace->heap.sorted[mid];
if (mid_membase < membase) {
lo = mid + 1;
}
@@ -1059,14 +1227,16 @@ assign_heap_slot(rb_objspace_t *objspace)
}
}
if (hi < heaps_used) {
- MEMMOVE(&objspace->heap.sorted[hi+1], &objspace->heap.sorted[hi], struct sorted_heaps_slot, heaps_used - hi);
- }
- objspace->heap.sorted[hi].slot = slot;
- objspace->heap.sorted[hi].start = p;
- objspace->heap.sorted[hi].end = (p + objs);
+ MEMMOVE(&objspace->heap.sorted[hi+1], &objspace->heap.sorted[hi], struct heaps_header*, heaps_used - hi);
+ }
+ objspace->heap.sorted[hi] = membase;
+ membase->start = p;
+ membase->end = (p + objs);
+ membase->base = heaps;
+ membase->bits = heaps->bits;
+ membase->limit = objs;
heaps->membase = membase;
- heaps->slot = p;
- heaps->limit = objs;
+ memset(heaps->bits, 0, HEAP_BITMAP_LIMIT * sizeof(uintptr_t));
objspace->heap.free_num += objs;
pend = p + objs;
if (lomem == 0 || lomem > p) lomem = p;
@@ -1075,19 +1245,24 @@ assign_heap_slot(rb_objspace_t *objspace)
while (p < pend) {
p->as.free.flags = 0;
- p->as.free.next = freelist;
- freelist = p;
+ p->as.free.next = heaps->freelist;
+ heaps->freelist = p;
p++;
}
+ link_free_heap_slot(objspace, heaps);
}
static void
add_heap_slots(rb_objspace_t *objspace, size_t add)
{
size_t i;
+ size_t next_heaps_length;
- if ((heaps_used + add) > heaps_length) {
- allocate_sorted_heaps(objspace, heaps_used + add);
+ next_heaps_length = heaps_used + add;
+
+ if (next_heaps_length > heaps_length) {
+ allocate_sorted_heaps(objspace, next_heaps_length);
+ heaps_length = next_heaps_length;
}
for (i = 0; i < add; i++) {
@@ -1137,6 +1312,7 @@ set_heaps_increment(rb_objspace_t *objspace)
if (next_heaps_length > heaps_length) {
allocate_sorted_heaps(objspace, next_heaps_length);
+ heaps_length = next_heaps_length;
}
}
@@ -1159,6 +1335,7 @@ rb_during_gc(void)
}
#define RANY(o) ((RVALUE*)(o))
+#define has_free_object (objspace->heap.free_slots && objspace->heap.free_slots->freelist)
VALUE
rb_newobj(void)
@@ -1179,15 +1356,18 @@ rb_newobj(void)
}
}
- if (UNLIKELY(!freelist)) {
+ if (UNLIKELY(!has_free_object)) {
if (!gc_lazy_sweep(objspace)) {
during_gc = 0;
rb_memerror();
}
}
- obj = (VALUE)freelist;
- freelist = freelist->as.free.next;
+ obj = (VALUE)objspace->heap.free_slots->freelist;
+ objspace->heap.free_slots->freelist = RANY(obj)->as.free.next;
+ if (objspace->heap.free_slots->freelist == NULL) {
+ unlink_free_heap_slot(objspace, objspace->heap.free_slots);
+ }
MEMZERO((void*)obj, RVALUE, 1);
#ifdef GC_DEBUG
@@ -1356,10 +1536,10 @@ gc_mark_all(rb_objspace_t *objspace)
init_mark_stack(objspace);
for (i = 0; i < heaps_used; i++) {
- p = objspace->heap.sorted[i].start; pend = objspace->heap.sorted[i].end;
+ p = objspace->heap.sorted[i]->start; pend = objspace->heap.sorted[i]->end;
while (p < pend) {
- if ((p->as.basic.flags & FL_MARK) &&
- (p->as.basic.flags != FL_MARK)) {
+ if (MARKED_IN_BITMAP(GET_HEAP_BITMAP(p), p) &&
+ p->as.basic.flags) {
gc_mark_children(objspace, (VALUE)p, 0);
}
p++;
@@ -1387,26 +1567,27 @@ static inline int
is_pointer_to_heap(rb_objspace_t *objspace, void *ptr)
{
register RVALUE *p = RANY(ptr);
- register struct sorted_heaps_slot *heap;
+ register struct heaps_header *heap;
register size_t hi, lo, mid;
if (p < lomem || p > himem) return FALSE;
if ((VALUE)p % sizeof(RVALUE) != 0) return FALSE;
+ heap = GET_HEAP_HEADER(p);
/* check if p looks like a pointer using bsearch*/
lo = 0;
hi = heaps_used;
while (lo < hi) {
mid = (lo + hi) / 2;
- heap = &objspace->heap.sorted[mid];
- if (heap->start <= p) {
- if (p < heap->end)
- return TRUE;
- lo = mid + 1;
- }
- else {
- hi = mid;
- }
+ if (heap > objspace->heap.sorted[mid]) {
+ lo = mid + 1;
+ }
+ else if (heap < objspace->heap.sorted[mid]) {
+ hi = mid;
+ }
+ else {
+ return (p >= heap->start && p < heap->end) ? TRUE : FALSE;
+ }
}
return FALSE;
}
@@ -1449,10 +1630,10 @@ struct mark_tbl_arg {
};
static int
-mark_entry(ID key, VALUE value, st_data_t data)
+mark_entry(st_data_t key, st_data_t value, st_data_t data)
{
struct mark_tbl_arg *arg = (void*)data;
- gc_mark(arg->objspace, value, arg->lev);
+ gc_mark(arg->objspace, (VALUE)value, arg->lev);
return ST_CONTINUE;
}
@@ -1467,10 +1648,10 @@ mark_tbl(rb_objspace_t *objspace, st_table *tbl, int lev)
}
static int
-mark_key(VALUE key, VALUE value, st_data_t data)
+mark_key(st_data_t key, st_data_t value, st_data_t data)
{
struct mark_tbl_arg *arg = (void*)data;
- gc_mark(arg->objspace, key, arg->lev);
+ gc_mark(arg->objspace, (VALUE)key, arg->lev);
return ST_CONTINUE;
}
@@ -1491,11 +1672,11 @@ rb_mark_set(st_table *tbl)
}
static int
-mark_keyvalue(VALUE key, VALUE value, st_data_t data)
+mark_keyvalue(st_data_t key, st_data_t value, st_data_t data)
{
struct mark_tbl_arg *arg = (void*)data;
- gc_mark(arg->objspace, key, arg->lev);
- gc_mark(arg->objspace, value, arg->lev);
+ gc_mark(arg->objspace, (VALUE)key, arg->lev);
+ gc_mark(arg->objspace, (VALUE)value, arg->lev);
return ST_CONTINUE;
}
@@ -1565,7 +1746,9 @@ mark_m_tbl(rb_objspace_t *objspace, st_table *tbl, int lev)
static int
free_method_entry_i(ID key, rb_method_entry_t *me, st_data_t data)
{
- rb_free_method_entry(me);
+ if (!me->mark) {
+ rb_free_method_entry(me);
+ }
return ST_CONTINUE;
}
@@ -1622,6 +1805,16 @@ rb_gc_mark_maybe(VALUE obj)
}
}
+static int
+gc_mark_ptr(rb_objspace_t *objspace, VALUE ptr)
+{
+ register uintptr_t *bits = GET_HEAP_BITMAP(ptr);
+ if (MARKED_IN_BITMAP(bits, ptr)) return 0;
+ MARK_IN_BITMAP(bits, ptr);
+ objspace->heap.live_num++;
+ return 1;
+}
+
static void
gc_mark(rb_objspace_t *objspace, VALUE ptr, int lev)
{
@@ -1630,9 +1823,7 @@ gc_mark(rb_objspace_t *objspace, VALUE ptr, int lev)
obj = RANY(ptr);
if (rb_special_const_p(ptr)) return; /* special const not marked */
if (obj->as.basic.flags == 0) return; /* free cell */
- if (obj->as.basic.flags & FL_MARK) return; /* already marked */
- obj->as.basic.flags |= FL_MARK;
- objspace->heap.live_num++;
+ if (!gc_mark_ptr(objspace, ptr)) return; /* already marked */
if (lev > GC_LEVEL_MAX || (lev == 0 && stack_check(STACKFRAME_FOR_GC_MARK))) {
if (!mark_stack_overflow) {
@@ -1659,6 +1850,7 @@ static void
gc_mark_children(rb_objspace_t *objspace, VALUE ptr, int lev)
{
register RVALUE *obj = RANY(ptr);
+ register uintptr_t *bits;
goto marking; /* skip */
@@ -1666,8 +1858,9 @@ gc_mark_children(rb_objspace_t *objspace, VALUE ptr, int lev)
obj = RANY(ptr);
if (rb_special_const_p(ptr)) return; /* special const not marked */
if (obj->as.basic.flags == 0) return; /* free cell */
- if (obj->as.basic.flags & FL_MARK) return; /* already marked */
- obj->as.basic.flags |= FL_MARK;
+ bits = GET_HEAP_BITMAP(ptr);
+ if (MARKED_IN_BITMAP(bits, ptr)) return; /* already marked */
+ MARK_IN_BITMAP(bits, ptr);
objspace->heap.live_num++;
marking:
@@ -1819,6 +2012,7 @@ gc_mark_children(rb_objspace_t *objspace, VALUE ptr, int lev)
case T_CLASS:
case T_MODULE:
mark_m_tbl(objspace, RCLASS_M_TBL(obj), lev);
+ if (!RCLASS_EXT(obj)) break;
mark_tbl(objspace, RCLASS_IV_TBL(obj), lev);
mark_const_tbl(objspace, RCLASS_CONST_TBL(obj), lev);
ptr = RCLASS_SUPER(obj);
@@ -1929,15 +2123,22 @@ gc_mark_children(rb_objspace_t *objspace, VALUE ptr, int lev)
static int obj_free(rb_objspace_t *, VALUE);
-static inline void
-add_freelist(rb_objspace_t *objspace, RVALUE *p)
+static inline struct heaps_slot *
+add_slot_local_freelist(rb_objspace_t *objspace, RVALUE *p)
{
+ struct heaps_slot *slot;
+
VALGRIND_MAKE_MEM_UNDEFINED((void*)p, sizeof(RVALUE));
p->as.free.flags = 0;
- p->as.free.next = freelist;
- freelist = p;
+ slot = GET_HEAP_SLOT(p);
+ p->as.free.next = slot->freelist;
+ slot->freelist = p;
+
+ return slot;
}
+static void free_unused_heap(rb_objspace_t *objspace, struct heaps_header *heap);
+
static void
finalize_list(rb_objspace_t *objspace, RVALUE *p)
{
@@ -1945,17 +2146,16 @@ finalize_list(rb_objspace_t *objspace, RVALUE *p)
RVALUE *tmp = p->as.free.next;
run_final(objspace, (VALUE)p);
if (!FL_TEST(p, FL_SINGLETON)) { /* not freeing page */
- if (objspace->heap.sweep_slots) {
- p->as.free.flags = 0;
- }
- else {
+ add_slot_local_freelist(objspace, p);
+ if (!is_lazy_sweeping(objspace)) {
GC_PROF_DEC_LIVE_NUM;
- add_freelist(objspace, p);
}
}
else {
- struct heaps_slot *slot = (struct heaps_slot *)(VALUE)RDATA(p)->dmark;
- slot->limit--;
+ struct heaps_header *heap = GET_HEAP_HEADER(p);
+ if (--heap->limit == 0) {
+ free_unused_heap(objspace, heap);
+ }
}
p = tmp;
}
@@ -1976,97 +2176,106 @@ unlink_heap_slot(rb_objspace_t *objspace, struct heaps_slot *slot)
slot->next = NULL;
}
-
static void
-free_unused_heaps(rb_objspace_t *objspace)
+free_unused_heap(rb_objspace_t *objspace, struct heaps_header *heap)
{
- size_t i, j;
- RVALUE *last = 0;
-
- for (i = j = 1; j < heaps_used; i++) {
- if (objspace->heap.sorted[i].slot->limit == 0) {
- if (!last) {
- last = objspace->heap.sorted[i].slot->membase;
- }
- else {
- free(objspace->heap.sorted[i].slot->membase);
- }
- free(objspace->heap.sorted[i].slot);
- heaps_used--;
- }
- else {
- if (i != j) {
- objspace->heap.sorted[j] = objspace->heap.sorted[i];
- }
- j++;
- }
- }
- if (last) {
- if (last < heaps_freed) {
- free(heaps_freed);
- heaps_freed = last;
- }
- else {
- free(last);
- }
+ register size_t hi, lo, mid;
+ lo = 0;
+ hi = heaps_used;
+ while (lo < hi) {
+ mid = (lo + hi) / 2;
+ if (heap > objspace->heap.sorted[mid]) {
+ lo = mid + 1;
+ }
+ else if (heap < objspace->heap.sorted[mid]) {
+ hi = mid;
+ }
+ else {
+ /* remove unused heap */
+ struct heaps_slot* h = objspace->heap.sorted[mid]->base;
+ h->free_next = objspace->heap.reserve_slots;
+ objspace->heap.reserve_slots = h;
+ aligned_free(objspace->heap.sorted[mid]);
+ heaps_used--;
+ MEMMOVE(objspace->heap.sorted + mid, objspace->heap.sorted + mid + 1,
+ struct heaps_header *, heaps_used - mid);
+ return;
+ }
}
}
static void
+gc_clear_slot_bits(struct heaps_slot *slot)
+{
+ memset(slot->bits, 0, HEAP_BITMAP_LIMIT * sizeof(uintptr_t));
+}
+
+static void
slot_sweep(rb_objspace_t *objspace, struct heaps_slot *sweep_slot)
{
size_t free_num = 0, final_num = 0;
RVALUE *p, *pend;
- RVALUE *free = freelist, *final = deferred_final_list;
+ RVALUE *final = deferred_final_list;
int deferred;
+ uintptr_t *bits;
- p = sweep_slot->slot; pend = p + sweep_slot->limit;
+ p = sweep_slot->membase->start; pend = sweep_slot->membase->end;
+ bits = sweep_slot->bits;
while (p < pend) {
- if (!(p->as.basic.flags & FL_MARK)) {
- if (p->as.basic.flags &&
- ((deferred = obj_free(objspace, (VALUE)p)) ||
- (FL_TEST(p, FL_FINALIZE)))) {
- if (!deferred) {
- p->as.free.flags = T_ZOMBIE;
- RDATA(p)->dfree = 0;
+ if ((!(MARKED_IN_BITMAP(bits, p))) && BUILTIN_TYPE(p) != T_ZOMBIE) {
+ if (p->as.basic.flags) {
+ if ((deferred = obj_free(objspace, (VALUE)p)) ||
+ (FL_TEST(p, FL_FINALIZE))) {
+ if (!deferred) {
+ p->as.free.flags = T_ZOMBIE;
+ RDATA(p)->dfree = 0;
+ }
+ p->as.free.next = deferred_final_list;
+ deferred_final_list = p;
+ assert(BUILTIN_TYPE(p) == T_ZOMBIE);
+ final_num++;
+ }
+ else {
+ VALGRIND_MAKE_MEM_UNDEFINED((void*)p, sizeof(RVALUE));
+ p->as.free.flags = 0;
+ p->as.free.next = sweep_slot->freelist;
+ sweep_slot->freelist = p;
+ free_num++;
}
- p->as.free.flags |= FL_MARK;
- p->as.free.next = deferred_final_list;
- deferred_final_list = p;
- final_num++;
}
else {
- add_freelist(objspace, p);
free_num++;
}
}
- else if (BUILTIN_TYPE(p) == T_ZOMBIE) {
- /* objects to be finalized */
- /* do nothing remain marked */
- }
- else {
- RBASIC(p)->flags &= ~FL_MARK;
- }
p++;
}
- if (final_num + free_num == sweep_slot->limit &&
+ gc_clear_slot_bits(sweep_slot);
+ if (final_num + free_num == sweep_slot->membase->limit &&
objspace->heap.free_num > objspace->heap.do_heap_free) {
RVALUE *pp;
for (pp = deferred_final_list; pp != final; pp = pp->as.free.next) {
- RDATA(pp)->dmark = (void (*)(void *))(VALUE)sweep_slot;
+ RDATA(pp)->dmark = 0;
pp->as.free.flags |= FL_SINGLETON; /* freeing page mark */
}
- sweep_slot->limit = final_num;
- freelist = free; /* cancel this page from freelist */
+ sweep_slot->membase->limit = final_num;
unlink_heap_slot(objspace, sweep_slot);
+ if (final_num == 0) {
+ free_unused_heap(objspace, sweep_slot->membase);
+ }
}
else {
+ if (free_num > 0) {
+ link_free_heap_slot(objspace, sweep_slot);
+ }
+ else {
+ sweep_slot->free_next = NULL;
+ }
objspace->heap.free_num += free_num;
}
objspace->heap.final_num += final_num;
- if (deferred_final_list) {
+ if (deferred_final_list && !finalizing) {
rb_thread_t *th = GET_THREAD();
if (th) {
RUBY_VM_SET_FINALIZER_INTERRUPT(th);
@@ -2078,7 +2287,7 @@ static int
ready_to_gc(rb_objspace_t *objspace)
{
if (dont_gc || during_gc) {
- if (!freelist) {
+ if (!has_free_object) {
if (!heaps_increment(objspace)) {
set_heaps_increment(objspace);
heaps_increment(objspace);
@@ -2092,7 +2301,6 @@ ready_to_gc(rb_objspace_t *objspace)
static void
before_gc_sweep(rb_objspace_t *objspace)
{
- freelist = 0;
objspace->heap.do_heap_free = (size_t)((heaps_used * HEAP_OBJ_LIMIT) * 0.65);
objspace->heap.free_min = (size_t)((heaps_used * HEAP_OBJ_LIMIT) * 0.2);
if (objspace->heap.free_min < initial_free_min) {
@@ -2101,6 +2309,7 @@ before_gc_sweep(rb_objspace_t *objspace)
}
objspace->heap.sweep_slots = heaps;
objspace->heap.free_num = 0;
+ objspace->heap.free_slots = NULL;
/* sweep unlinked method entries */
if (GET_VM()->unlinked_method_entry_list) {
@@ -2123,8 +2332,6 @@ after_gc_sweep(rb_objspace_t *objspace)
if (malloc_limit < initial_malloc_limit) malloc_limit = initial_malloc_limit;
}
malloc_increase = 0;
-
- free_unused_heaps(objspace);
}
static int
@@ -2137,7 +2344,7 @@ lazy_sweep(rb_objspace_t *objspace)
next = objspace->heap.sweep_slots->next;
slot_sweep(objspace, objspace->heap.sweep_slots);
objspace->heap.sweep_slots = next;
- if (freelist) {
+ if (has_free_object) {
during_gc = 0;
return TRUE;
}
@@ -2149,10 +2356,10 @@ static void
rest_sweep(rb_objspace_t *objspace)
{
if (objspace->heap.sweep_slots) {
- while (objspace->heap.sweep_slots) {
- lazy_sweep(objspace);
- }
- after_gc_sweep(objspace);
+ while (objspace->heap.sweep_slots) {
+ lazy_sweep(objspace);
+ }
+ after_gc_sweep(objspace);
}
}
@@ -2199,9 +2406,9 @@ gc_lazy_sweep(rb_objspace_t *objspace)
}
GC_PROF_SWEEP_TIMER_START;
- if(!(res = lazy_sweep(objspace))) {
+ if (!(res = lazy_sweep(objspace))) {
after_gc_sweep(objspace);
- if(freelist) {
+ if (has_free_object) {
res = TRUE;
during_gc = 0;
}
@@ -2234,12 +2441,17 @@ void
rb_gc_force_recycle(VALUE p)
{
rb_objspace_t *objspace = &rb_objspace;
- GC_PROF_DEC_LIVE_NUM;
- if (RBASIC(p)->flags & FL_MARK) {
- RANY(p)->as.free.flags = 0;
+ struct heaps_slot *slot;
+
+ if (MARKED_IN_BITMAP(GET_HEAP_BITMAP(p), p)) {
+ add_slot_local_freelist(objspace, (RVALUE *)p);
}
else {
- add_freelist(objspace, (RVALUE *)p);
+ GC_PROF_DEC_LIVE_NUM;
+ slot = add_slot_local_freelist(objspace, (RVALUE *)p);
+ if (slot->free_next == NULL) {
+ link_free_heap_slot(objspace, slot);
+ }
}
}
@@ -2611,7 +2823,7 @@ static VALUE
objspace_each_objects(VALUE arg)
{
size_t i;
- RVALUE *membase = 0;
+ struct heaps_header *membase = 0;
RVALUE *pstart, *pend;
rb_objspace_t *objspace = &rb_objspace;
struct each_obj_args *args = (struct each_obj_args *)arg;
@@ -2619,16 +2831,16 @@ objspace_each_objects(VALUE arg)
i = 0;
while (i < heaps_used) {
- while (0 < i && (uintptr_t)membase < (uintptr_t)objspace->heap.sorted[i-1].slot->membase)
+ while (0 < i && membase < objspace->heap.sorted[i-1])
i--;
- while (i < heaps_used && (uintptr_t)objspace->heap.sorted[i].slot->membase <= (uintptr_t)membase)
+ while (i < heaps_used && objspace->heap.sorted[i] <= membase)
i++;
if (heaps_used <= i)
break;
- membase = objspace->heap.sorted[i].slot->membase;
+ membase = objspace->heap.sorted[i];
- pstart = objspace->heap.sorted[i].slot->slot;
- pend = pstart + objspace->heap.sorted[i].slot->limit;
+ pstart = membase->start;
+ pend = membase->end;
for (; pstart != pend; pstart++) {
if (pstart->as.basic.flags) {
@@ -2642,6 +2854,7 @@ objspace_each_objects(VALUE arg)
}
}
}
+ RB_GC_GUARD(v);
return Qnil;
}
@@ -2885,11 +3098,12 @@ run_single_final(VALUE arg)
}
static void
-run_finalizer(rb_objspace_t *objspace, VALUE objid, VALUE table)
+run_finalizer(rb_objspace_t *objspace, VALUE obj, VALUE table)
{
long i;
int status;
VALUE args[3];
+ VALUE objid = nonspecial_obj_id(obj);
if (RARRAY_LEN(table) > 0) {
args[1] = rb_obj_freeze(rb_ary_new3(1, objid));
@@ -2913,13 +3127,11 @@ run_finalizer(rb_objspace_t *objspace, VALUE objid, VALUE table)
static void
run_final(rb_objspace_t *objspace, VALUE obj)
{
- VALUE objid;
RUBY_DATA_FUNC free_func = 0;
st_data_t key, table;
objspace->heap.final_num--;
- objid = rb_obj_id(obj); /* make obj into id */
RBASIC(obj)->klass = 0;
if (RTYPEDDATA_P(obj)) {
@@ -2934,7 +3146,7 @@ run_final(rb_objspace_t *objspace, VALUE obj)
key = (st_data_t)obj;
if (st_delete(finalizer_table, &key, &table)) {
- run_finalizer(objspace, objid, (VALUE)table);
+ run_finalizer(objspace, obj, (VALUE)table);
}
}
@@ -2952,16 +3164,20 @@ finalize_deferred(rb_objspace_t *objspace)
void
rb_gc_finalize_deferred(void)
{
- finalize_deferred(&rb_objspace);
+ rb_objspace_t *objspace = &rb_objspace;
+ if (ATOMIC_EXCHANGE(finalizing, 1)) return;
+ finalize_deferred(objspace);
+ ATOMIC_SET(finalizing, 0);
}
static int
chain_finalized_object(st_data_t key, st_data_t val, st_data_t arg)
{
RVALUE *p = (RVALUE *)key, **final_list = (RVALUE **)arg;
- if ((p->as.basic.flags & (FL_FINALIZE|FL_MARK)) == FL_FINALIZE) {
+ if ((p->as.basic.flags & FL_FINALIZE) == FL_FINALIZE &&
+ !MARKED_IN_BITMAP(GET_HEAP_BITMAP(p), p)) {
if (BUILTIN_TYPE(p) != T_ZOMBIE) {
- p->as.free.flags = FL_MARK | T_ZOMBIE; /* remain marked */
+ p->as.free.flags = T_ZOMBIE;
RDATA(p)->dfree = 0;
}
p->as.free.next = *final_list;
@@ -3004,6 +3220,8 @@ rb_objspace_call_finalizer(rb_objspace_t *objspace)
/* run finalizers */
rest_sweep(objspace);
+ if (ATOMIC_EXCHANGE(finalizing, 1)) return;
+
do {
/* XXX: this loop will make no sense */
/* because mark will not be removed */
@@ -3018,8 +3236,9 @@ rb_objspace_call_finalizer(rb_objspace_t *objspace)
st_foreach(finalizer_table, force_chain_object, (st_data_t)&list);
while (list) {
struct force_finalize_list *curr = list;
- run_finalizer(objspace, rb_obj_id(curr->obj), curr->table);
- st_delete(finalizer_table, (st_data_t*)&curr->obj, 0);
+ st_data_t obj = (st_data_t)curr->obj;
+ run_finalizer(objspace, curr->obj, curr->table);
+ st_delete(finalizer_table, &obj, 0);
list = curr->next;
xfree(curr);
}
@@ -3030,7 +3249,7 @@ rb_objspace_call_finalizer(rb_objspace_t *objspace)
/* run data object's finalizers */
for (i = 0; i < heaps_used; i++) {
- p = objspace->heap.sorted[i].start; pend = objspace->heap.sorted[i].end;
+ p = objspace->heap.sorted[i]->start; pend = objspace->heap.sorted[i]->end;
while (p < pend) {
if (BUILTIN_TYPE(p) == T_DATA &&
DATA_PTR(p) && RANY(p)->as.data.dfree &&
@@ -3066,6 +3285,7 @@ rb_objspace_call_finalizer(rb_objspace_t *objspace)
st_free_table(finalizer_table);
finalizer_table = 0;
+ ATOMIC_SET(finalizing, 0);
}
void
@@ -3073,8 +3293,39 @@ rb_gc(void)
{
rb_objspace_t *objspace = &rb_objspace;
garbage_collect(objspace);
- finalize_deferred(objspace);
- free_unused_heaps(objspace);
+ if (!finalizing) finalize_deferred(objspace);
+}
+
+static inline int
+is_id_value(rb_objspace_t *objspace, VALUE ptr)
+{
+ if (!is_pointer_to_heap(objspace, (void *)ptr)) return FALSE;
+ if (BUILTIN_TYPE(ptr) > T_FIXNUM) return FALSE;
+ if (BUILTIN_TYPE(ptr) == T_ICLASS) return FALSE;
+ return TRUE;
+}
+
+static inline int
+is_dead_object(rb_objspace_t *objspace, VALUE ptr)
+{
+ struct heaps_slot *slot = objspace->heap.sweep_slots;
+ if (!is_lazy_sweeping(objspace) || MARKED_IN_BITMAP(GET_HEAP_BITMAP(ptr), ptr))
+ return FALSE;
+ while (slot) {
+ if ((VALUE)slot->membase->start <= ptr && ptr < (VALUE)(slot->membase->end))
+ return TRUE;
+ slot = slot->next;
+ }
+ return FALSE;
+}
+
+static inline int
+is_live_object(rb_objspace_t *objspace, VALUE ptr)
+{
+ if (BUILTIN_TYPE(ptr) == 0) return FALSE;
+ if (RBASIC(ptr)->klass == 0) return FALSE;
+ if (is_dead_object(objspace, ptr)) return FALSE;
+ return TRUE;
}
/*
@@ -3119,11 +3370,10 @@ id2ref(VALUE obj, VALUE objid)
return ID2SYM(symid);
}
- if (!is_pointer_to_heap(objspace, (void *)ptr) ||
- BUILTIN_TYPE(ptr) > T_FIXNUM || BUILTIN_TYPE(ptr) == T_ICLASS) {
+ if (!is_id_value(objspace, ptr)) {
rb_raise(rb_eRangeError, "%p is not id value", p0);
}
- if (BUILTIN_TYPE(ptr) == 0 || RBASIC(ptr)->klass == 0) {
+ if (!is_live_object(objspace, ptr)) {
rb_raise(rb_eRangeError, "%p is recycled object", p0);
}
return (VALUE)ptr;
@@ -3193,7 +3443,7 @@ rb_obj_id(VALUE obj)
if (SPECIAL_CONST_P(obj)) {
return LONG2NUM((SIGNED_VALUE)obj);
}
- return (VALUE)((SIGNED_VALUE)obj|FIXNUM_FLAG);
+ return nonspecial_obj_id(obj);
}
static int
@@ -3236,7 +3486,7 @@ count_objects(int argc, VALUE *argv, VALUE os)
VALUE hash;
if (rb_scan_args(argc, argv, "01", &hash) == 1) {
- if (TYPE(hash) != T_HASH)
+ if (!RB_TYPE_P(hash, T_HASH))
rb_raise(rb_eTypeError, "non-hash given");
}
@@ -3247,7 +3497,7 @@ count_objects(int argc, VALUE *argv, VALUE os)
for (i = 0; i < heaps_used; i++) {
RVALUE *p, *pend;
- p = objspace->heap.sorted[i].start; pend = objspace->heap.sorted[i].end;
+ p = objspace->heap.sorted[i]->start; pend = objspace->heap.sorted[i]->end;
for (;p < pend; p++) {
if (p->as.basic.flags) {
counts[BUILTIN_TYPE(p)]++;
@@ -3256,7 +3506,7 @@ count_objects(int argc, VALUE *argv, VALUE os)
freed++;
}
}
- total += objspace->heap.sorted[i].slot->limit;
+ total += objspace->heap.sorted[i]->limit;
}
if (hash == Qnil) {
@@ -3355,7 +3605,7 @@ gc_stat(int argc, VALUE *argv, VALUE self)
VALUE hash;
if (rb_scan_args(argc, argv, "01", &hash) == 1) {
- if (TYPE(hash) != T_HASH)
+ if (!RB_TYPE_P(hash, T_HASH))
rb_raise(rb_eTypeError, "non-hash given");
}
@@ -3410,6 +3660,33 @@ gc_malloc_allocations(VALUE self)
}
#endif
+/*
+ * call-seq:
+ * GC::Profiler.raw_data -> [Hash, ...]
+ *
+ * Returns an Array of individual raw profile data Hashes ordered
+ * from earliest to latest by <tt>:GC_INVOKE_TIME</tt>. For example:
+ *
+ * [{:GC_TIME=>1.3000000000000858e-05,
+ * :GC_INVOKE_TIME=>0.010634999999999999,
+ * :HEAP_USE_SIZE=>289640,
+ * :HEAP_TOTAL_SIZE=>588960,
+ * :HEAP_TOTAL_OBJECTS=>14724,
+ * :GC_IS_MARKED=>false},
+ * ...
+ * ]
+ *
+ * The keys mean:
+ *
+ * +:GC_TIME+:: Time taken for this run in milliseconds
+ * +:GC_INVOKE_TIME+:: Time the GC was invoked since startup in seconds
+ * +:HEAP_USE_SIZE+:: Bytes of heap used
+ * +:HEAP_TOTAL_SIZE+:: Size of heap in bytes
+ * +:HEAP_TOTAL_OBJECTS+:: Number of objects
+ * +:GC_IS_MARKED+:: Is the GC in the mark phase
+ *
+ */
+
static VALUE
gc_profile_record_get(void)
{
@@ -3602,6 +3879,7 @@ Init_GC(void)
rb_mProfiler = rb_define_module_under(rb_mGC, "Profiler");
rb_define_singleton_method(rb_mProfiler, "enabled?", gc_profile_enable_get, 0);
rb_define_singleton_method(rb_mProfiler, "enable", gc_profile_enable, 0);
+ rb_define_singleton_method(rb_mProfiler, "raw_data", gc_profile_record_get, 0);
rb_define_singleton_method(rb_mProfiler, "disable", gc_profile_disable, 0);
rb_define_singleton_method(rb_mProfiler, "clear", gc_profile_clear, 0);
rb_define_singleton_method(rb_mProfiler, "result", gc_profile_result, 0);
diff --git a/hash.c b/hash.c
index fbd8237..32917c3 100644
--- a/hash.c
+++ b/hash.c
@@ -44,7 +44,7 @@ rb_any_cmp(VALUE a, VALUE b)
if (FIXNUM_P(a) && FIXNUM_P(b)) {
return a != b;
}
- if (TYPE(a) == T_STRING && RBASIC(a)->klass == rb_cString &&
+ if (RB_TYPE_P(a, T_STRING) && RBASIC(a)->klass == rb_cString &&
TYPE(b) == T_STRING && RBASIC(b)->klass == rb_cString) {
return rb_str_hash_cmp(a, b);
}
@@ -80,20 +80,14 @@ rb_any_hash(VALUE a)
VALUE hval;
st_index_t hnum;
- switch (TYPE(a)) {
- case T_FIXNUM:
- case T_SYMBOL:
- case T_NIL:
- case T_FALSE:
- case T_TRUE:
- hnum = rb_hash_end(rb_hash_start((unsigned int)a));
- break;
-
- case T_STRING:
+ if (SPECIAL_CONST_P(a)) {
+ if (a == Qundef) return 0;
+ hnum = rb_hash_end(rb_hash_start((st_index_t)a));
+ }
+ else if (BUILTIN_TYPE(a) == T_STRING) {
hnum = rb_str_hash(a);
- break;
-
- default:
+ }
+ else {
hval = rb_hash(a);
hnum = FIX2LONG(hval);
}
@@ -106,10 +100,8 @@ static const struct st_hash_type objhash = {
rb_any_hash,
};
-static const struct st_hash_type identhash = {
- st_numcmp,
- st_numhash,
-};
+extern const struct st_hash_type st_hashtype_num;
+#define identhash st_hashtype_num
typedef int st_foreach_func(st_data_t, st_data_t, st_data_t);
@@ -124,7 +116,6 @@ foreach_safe_i(st_data_t key, st_data_t value, struct foreach_safe_arg *arg)
{
int status;
- if (key == Qundef) return ST_CONTINUE;
status = (*arg->func)(key, value, arg->arg);
if (status == ST_CONTINUE) {
return ST_CHECK;
@@ -140,7 +131,7 @@ st_foreach_safe(st_table *table, int (*func)(ANYARGS), st_data_t a)
arg.tbl = table;
arg.func = (st_foreach_func *)func;
arg.arg = a;
- if (st_foreach(table, foreach_safe_i, (st_data_t)&arg)) {
+ if (st_foreach_check(table, foreach_safe_i, (st_data_t)&arg, 0)) {
rb_raise(rb_eRuntimeError, "hash modified during iteration");
}
}
@@ -154,21 +145,21 @@ struct hash_foreach_arg {
};
static int
-hash_foreach_iter(st_data_t key, st_data_t value, struct hash_foreach_arg *arg)
+hash_foreach_iter(st_data_t key, st_data_t value, st_data_t argp)
{
+ struct hash_foreach_arg *arg = (struct hash_foreach_arg *)argp;
int status;
st_table *tbl;
tbl = RHASH(arg->hash)->ntbl;
- if ((VALUE)key == Qundef) return ST_CONTINUE;
status = (*arg->func)((VALUE)key, (VALUE)value, arg->arg);
if (RHASH(arg->hash)->ntbl != tbl) {
rb_raise(rb_eRuntimeError, "rehash occurred during iteration");
}
switch (status) {
case ST_DELETE:
- st_delete_safe(tbl, &key, 0, Qundef);
FL_SET(arg->hash, HASH_DELETED);
+ return ST_DELETE;
case ST_CONTINUE:
break;
case ST_STOP:
@@ -184,7 +175,7 @@ hash_foreach_ensure(VALUE hash)
if (RHASH(hash)->iter_lev == 0) {
if (FL_TEST(hash, HASH_DELETED)) {
- st_cleanup_safe(RHASH(hash)->ntbl, Qundef);
+ st_cleanup_safe(RHASH(hash)->ntbl, (st_data_t)Qundef);
FL_UNSET(hash, HASH_DELETED);
}
}
@@ -192,9 +183,10 @@ hash_foreach_ensure(VALUE hash)
}
static VALUE
-hash_foreach_call(struct hash_foreach_arg *arg)
+hash_foreach_call(VALUE arg)
{
- if (st_foreach(RHASH(arg->hash)->ntbl, hash_foreach_iter, (st_data_t)arg)) {
+ VALUE hash = ((struct hash_foreach_arg *)arg)->hash;
+ if (st_foreach_check(RHASH(hash)->ntbl, hash_foreach_iter, (st_data_t)arg, (st_data_t)Qundef)) {
rb_raise(rb_eRuntimeError, "hash modified during iteration");
}
return Qnil;
@@ -447,7 +439,7 @@ rb_hash_rehash_i(VALUE key, VALUE value, VALUE arg)
{
st_table *tbl = (st_table *)arg;
- if (key != Qundef) st_insert(tbl, key, value);
+ st_insert(tbl, (st_data_t)key, (st_data_t)value);
return ST_CONTINUE;
}
@@ -490,6 +482,20 @@ rb_hash_rehash(VALUE hash)
return hash;
}
+static VALUE
+hash_default_value(VALUE hash, VALUE key)
+{
+ if (rb_method_basic_definition_p(CLASS_OF(hash), id_default)) {
+ VALUE ifnone = RHASH_IFNONE(hash);
+ if (!FL_TEST(hash, HASH_PROC_DEFAULT)) return ifnone;
+ if (key == Qundef) return Qnil;
+ return rb_funcall(ifnone, id_yield, 2, hash, key);
+ }
+ else {
+ return rb_funcall(hash, id_default, 1, key);
+ }
+}
+
/*
* call-seq:
* hsh[key] -> value
@@ -510,13 +516,7 @@ rb_hash_aref(VALUE hash, VALUE key)
st_data_t val;
if (!RHASH(hash)->ntbl || !st_lookup(RHASH(hash)->ntbl, key, &val)) {
- if (!FL_TEST(hash, HASH_PROC_DEFAULT) &&
- rb_method_basic_definition_p(CLASS_OF(hash), id_default)) {
- return RHASH_IFNONE(hash);
- }
- else {
- return rb_funcall(hash, id_default, 1, key);
- }
+ return hash_default_value(hash, key);
}
return (VALUE)val;
}
@@ -659,7 +659,7 @@ rb_hash_default(int argc, VALUE *argv, VALUE hash)
static VALUE
rb_hash_set_default(VALUE hash, VALUE ifnone)
{
- rb_hash_modify(hash);
+ rb_hash_modify_check(hash);
RHASH_IFNONE(hash) = ifnone;
FL_UNSET(hash, HASH_PROC_DEFAULT);
return ifnone;
@@ -707,7 +707,7 @@ rb_hash_set_default_proc(VALUE hash, VALUE proc)
{
VALUE b;
- rb_hash_modify(hash);
+ rb_hash_modify_check(hash);
b = rb_check_convert_type(proc, T_DATA, "Proc", "to_proc");
if (NIL_P(b) || !rb_obj_is_proc(b)) {
rb_raise(rb_eTypeError,
@@ -776,7 +776,7 @@ rb_hash_delete_key(VALUE hash, VALUE key)
if (!RHASH(hash)->ntbl)
return Qundef;
if (RHASH(hash)->iter_lev > 0) {
- if (st_delete_safe(RHASH(hash)->ntbl, &ktmp, &val, Qundef)) {
+ if (st_delete_safe(RHASH(hash)->ntbl, &ktmp, &val, (st_data_t)Qundef)) {
FL_SET(hash, HASH_DELETED);
return (VALUE)val;
}
@@ -809,7 +809,7 @@ rb_hash_delete(VALUE hash, VALUE key)
{
VALUE val;
- rb_hash_modify(hash);
+ rb_hash_modify_check(hash);
val = rb_hash_delete_key(hash, key);
if (val != Qundef) return val;
if (rb_block_given_p()) {
@@ -828,7 +828,6 @@ shift_i(VALUE key, VALUE value, VALUE arg)
{
struct shift_var *var = (struct shift_var *)arg;
- if (key == Qundef) return ST_CONTINUE;
if (var->key != Qundef) return ST_STOP;
var->key = key;
var->val = value;
@@ -840,7 +839,6 @@ shift_i_safe(VALUE key, VALUE value, VALUE arg)
{
struct shift_var *var = (struct shift_var *)arg;
- if (key == Qundef) return ST_CONTINUE;
var->key = key;
var->val = value;
return ST_STOP;
@@ -864,29 +862,25 @@ rb_hash_shift(VALUE hash)
{
struct shift_var var;
- rb_hash_modify(hash);
- var.key = Qundef;
- rb_hash_foreach(hash, RHASH(hash)->iter_lev > 0 ? shift_i_safe : shift_i,
- (VALUE)&var);
-
- if (var.key != Qundef) {
- if (RHASH(hash)->iter_lev > 0) {
- rb_hash_delete_key(hash, var.key);
+ rb_hash_modify_check(hash);
+ if (RHASH(hash)->ntbl) {
+ var.key = Qundef;
+ rb_hash_foreach(hash, RHASH(hash)->iter_lev > 0 ? shift_i_safe : shift_i,
+ (VALUE)&var);
+
+ if (var.key != Qundef) {
+ if (RHASH(hash)->iter_lev > 0) {
+ rb_hash_delete_key(hash, var.key);
+ }
+ return rb_assoc_new(var.key, var.val);
}
- return rb_assoc_new(var.key, var.val);
- }
- else if (FL_TEST(hash, HASH_PROC_DEFAULT)) {
- return rb_funcall(RHASH_IFNONE(hash), id_yield, 2, hash, Qnil);
- }
- else {
- return RHASH_IFNONE(hash);
}
+ return hash_default_value(hash, Qnil);
}
static int
delete_if_i(VALUE key, VALUE value, VALUE hash)
{
- if (key == Qundef) return ST_CONTINUE;
if (RTEST(rb_yield_values(2, key, value))) {
rb_hash_delete_key(hash, key);
}
@@ -912,8 +906,9 @@ VALUE
rb_hash_delete_if(VALUE hash)
{
RETURN_ENUMERATOR(hash, 0, 0);
- rb_hash_modify(hash);
- rb_hash_foreach(hash, delete_if_i, hash);
+ rb_hash_modify_check(hash);
+ if (RHASH(hash)->ntbl)
+ rb_hash_foreach(hash, delete_if_i, hash);
return hash;
}
@@ -984,7 +979,6 @@ rb_hash_values_at(int argc, VALUE *argv, VALUE hash)
static int
select_i(VALUE key, VALUE value, VALUE result)
{
- if (key == Qundef) return ST_CONTINUE;
if (RTEST(rb_yield_values(2, key, value)))
rb_hash_aset(result, key, value);
return ST_CONTINUE;
@@ -1018,7 +1012,6 @@ rb_hash_select(VALUE hash)
static int
keep_if_i(VALUE key, VALUE value, VALUE hash)
{
- if (key == Qundef) return ST_CONTINUE;
if (!RTEST(rb_yield_values(2, key, value))) {
return ST_DELETE;
}
@@ -1040,7 +1033,7 @@ rb_hash_select_bang(VALUE hash)
st_index_t n;
RETURN_ENUMERATOR(hash, 0, 0);
- rb_hash_modify(hash);
+ rb_hash_modify_check(hash);
if (!RHASH(hash)->ntbl)
return Qnil;
n = RHASH(hash)->ntbl->num_entries;
@@ -1065,8 +1058,9 @@ VALUE
rb_hash_keep_if(VALUE hash)
{
RETURN_ENUMERATOR(hash, 0, 0);
- rb_hash_modify(hash);
- rb_hash_foreach(hash, keep_if_i, hash);
+ rb_hash_modify_check(hash);
+ if (RHASH(hash)->ntbl)
+ rb_hash_foreach(hash, keep_if_i, hash);
return hash;
}
@@ -1144,9 +1138,7 @@ rb_hash_aset(VALUE hash, VALUE key, VALUE val)
static int
replace_i(VALUE key, VALUE val, VALUE hash)
{
- if (key != Qundef) {
- rb_hash_aset(hash, key, val);
- }
+ rb_hash_aset(hash, key, val);
return ST_CONTINUE;
}
@@ -1227,7 +1219,6 @@ rb_hash_empty_p(VALUE hash)
static int
each_value_i(VALUE key, VALUE value)
{
- if (key == Qundef) return ST_CONTINUE;
rb_yield(value);
return ST_CONTINUE;
}
@@ -1262,7 +1253,6 @@ rb_hash_each_value(VALUE hash)
static int
each_key_i(VALUE key, VALUE value)
{
- if (key == Qundef) return ST_CONTINUE;
rb_yield(key);
return ST_CONTINUE;
}
@@ -1296,7 +1286,6 @@ rb_hash_each_key(VALUE hash)
static int
each_pair_i(VALUE key, VALUE value)
{
- if (key == Qundef) return ST_CONTINUE;
rb_yield(rb_assoc_new(key, value));
return ST_CONTINUE;
}
@@ -1334,7 +1323,6 @@ rb_hash_each_pair(VALUE hash)
static int
to_a_i(VALUE key, VALUE value, VALUE ary)
{
- if (key == Qundef) return ST_CONTINUE;
rb_ary_push(ary, rb_assoc_new(key, value));
return ST_CONTINUE;
}
@@ -1367,7 +1355,6 @@ inspect_i(VALUE key, VALUE value, VALUE str)
{
VALUE str2;
- if (key == Qundef) return ST_CONTINUE;
str2 = rb_inspect(key);
if (RSTRING_LEN(str) > 1) {
rb_str_cat2(str, ", ");
@@ -1434,7 +1421,6 @@ rb_hash_to_hash(VALUE hash)
static int
keys_i(VALUE key, VALUE value, VALUE ary)
{
- if (key == Qundef) return ST_CONTINUE;
rb_ary_push(ary, key);
return ST_CONTINUE;
}
@@ -1465,7 +1451,6 @@ rb_hash_keys(VALUE hash)
static int
values_i(VALUE key, VALUE value, VALUE ary)
{
- if (key == Qundef) return ST_CONTINUE;
rb_ary_push(ary, value);
return ST_CONTINUE;
}
@@ -1524,7 +1509,6 @@ rb_hash_search_value(VALUE key, VALUE value, VALUE arg)
{
VALUE *data = (VALUE *)arg;
- if (key == Qundef) return ST_CONTINUE;
if (rb_equal(value, data[1])) {
data[0] = Qtrue;
return ST_STOP;
@@ -1568,7 +1552,6 @@ eql_i(VALUE key, VALUE val1, VALUE arg)
struct equal_data *data = (struct equal_data *)arg;
st_data_t val2;
- if (key == Qundef) return ST_CONTINUE;
if (!st_lookup(data->tbl, key, &val2)) {
data->result = Qfalse;
return ST_STOP;
@@ -1599,7 +1582,7 @@ hash_equal(VALUE hash1, VALUE hash2, int eql)
struct equal_data data;
if (hash1 == hash2) return Qtrue;
- if (TYPE(hash2) != T_HASH) {
+ if (!RB_TYPE_P(hash2, T_HASH)) {
if (!rb_respond_to(hash2, rb_intern("to_hash"))) {
return Qfalse;
}
@@ -1670,7 +1653,6 @@ hash_i(VALUE key, VALUE val, VALUE arg)
st_index_t *hval = (st_index_t *)arg;
st_index_t hdata[2];
- if (key == Qundef) return ST_CONTINUE;
hdata[0] = rb_hash(key);
hdata[1] = rb_hash(val);
*hval ^= st_hash(hdata, sizeof(hdata), 0);
@@ -1711,7 +1693,6 @@ rb_hash_hash(VALUE hash)
static int
rb_hash_invert_i(VALUE key, VALUE value, VALUE hash)
{
- if (key == Qundef) return ST_CONTINUE;
rb_hash_aset(hash, value, key);
return ST_CONTINUE;
}
@@ -1740,7 +1721,6 @@ rb_hash_invert(VALUE hash)
static int
rb_hash_update_i(VALUE key, VALUE value, VALUE hash)
{
- if (key == Qundef) return ST_CONTINUE;
hash_update(hash, key);
st_insert(RHASH(hash)->ntbl, key, value);
return ST_CONTINUE;
@@ -1749,7 +1729,6 @@ rb_hash_update_i(VALUE key, VALUE value, VALUE hash)
static int
rb_hash_update_block_i(VALUE key, VALUE value, VALUE hash)
{
- if (key == Qundef) return ST_CONTINUE;
if (rb_hash_has_key(hash, key)) {
value = rb_yield_values(3, key, rb_hash_aref(hash, key), value);
}
@@ -1806,7 +1785,6 @@ rb_hash_update_func_i(VALUE key, VALUE value, VALUE arg0)
struct update_arg *arg = (struct update_arg *)arg0;
VALUE hash = arg->hash;
- if (key == Qundef) return ST_CONTINUE;
if (rb_hash_has_key(hash, key)) {
value = (*arg->func)(key, rb_hash_aref(hash, key), value);
}
@@ -1863,7 +1841,6 @@ assoc_i(VALUE key, VALUE val, VALUE arg)
{
VALUE *args = (VALUE *)arg;
- if (key == Qundef) return ST_CONTINUE;
if (RTEST(rb_equal(args[0], key))) {
args[1] = rb_assoc_new(key, val);
return ST_STOP;
@@ -1901,7 +1878,6 @@ rassoc_i(VALUE key, VALUE val, VALUE arg)
{
VALUE *args = (VALUE *)arg;
- if (key == Qundef) return ST_CONTINUE;
if (RTEST(rb_equal(args[0], val))) {
args[1] = rb_assoc_new(key, val);
return ST_STOP;
@@ -2198,7 +2174,7 @@ rb_env_path_tainted(void)
}
#if defined(_WIN32) || (defined(HAVE_SETENV) && defined(HAVE_UNSETENV))
-#elif defined __sun__
+#elif defined __sun
static int
in_origenv(const char *str)
{
@@ -2286,7 +2262,7 @@ ruby_setenv(const char *name, const char *value)
rb_sys_fail("unsetenv");
#endif
}
-#elif defined __sun__
+#elif defined __sun
size_t len;
char **env_ptr, *str;
if (strchr(name, '=')) {
@@ -3084,11 +3060,9 @@ env_invert(void)
static int
env_replace_i(VALUE key, VALUE val, VALUE keys)
{
- if (key != Qundef) {
- env_aset(Qnil, key, val);
- if (rb_ary_includes(keys, key)) {
- rb_ary_delete(keys, key);
- }
+ env_aset(Qnil, key, val);
+ if (rb_ary_includes(keys, key)) {
+ rb_ary_delete(keys, key);
}
return ST_CONTINUE;
}
@@ -3120,12 +3094,10 @@ env_replace(VALUE env, VALUE hash)
static int
env_update_i(VALUE key, VALUE val)
{
- if (key != Qundef) {
- if (rb_block_given_p()) {
- val = rb_yield_values(3, key, rb_f_getenv(Qnil, key), val);
- }
- env_aset(Qnil, key, val);
+ if (rb_block_given_p()) {
+ val = rb_yield_values(3, key, rb_f_getenv(Qnil, key), val);
}
+ env_aset(Qnil, key, val);
return ST_CONTINUE;
}
@@ -3150,15 +3122,116 @@ env_update(VALUE env, VALUE hash)
}
/*
- * A <code>Hash</code> is a collection of key-value pairs. It is
- * similar to an <code>Array</code>, except that indexing is done via
- * arbitrary keys of any object type, not an integer index. Hashes enumerate
- * their values in the order that the corresponding keys were inserted.
+ * A Hash is a dictionary-like collection of unique keys and their values.
+ * Also called associative arrays, they are similar to Arrays, but where an
+ * Array uses integers as its index, a Hash allows you to use any object
+ * type.
+ *
+ * Hashes enumerate their values in the order that the corresponding keys
+ * were inserted.
+ *
+ * A Hash can be easily created by using its implicit form:
+ *
+ * grades = { "Jane Doe" => 10, "Jim Doe" => 6 }
+ *
+ * Hashes allow an alternate syntax form when your keys are always symbols.
+ * Instead of
+ *
+ * options = { :font_size => 10, :font_family => "Arial" }
+ *
+ * You could write it as:
+ *
+ * options = { font_size: 10, font_family: "Arial" }
+ *
+ * Each named key is a symbol you can access in hash:
+ *
+ * options[:font_size] # => 10
+ *
+ * A Hash can also be created through its ::new method:
+ *
+ * grades = Hash.new
+ * grades["Dorothy Doe"] = 9
*
* Hashes have a <em>default value</em> that is returned when accessing
- * keys that do not exist in the hash. By default, that value is
- * <code>nil</code>.
+ * keys that do not exist in the hash. If no default is set +nil+ is used.
+ * You can set the default value by sending it as an argument to Hash.new:
+ *
+ * grades = Hash.new(0)
+ *
+ * Or by using the #default= method:
+ *
+ * grades = {"Timmy Doe" => 8}
+ * grades.default = 0
+ *
+ * Accessing a value in a Hash requires using its key:
+ *
+ * puts grades["Jane Doe"] # => 10
+ *
+ * === Common Uses
+ *
+ * Hashes are an easy way to represent data structures, such as
+ *
+ * books = {}
+ * books[:matz] = "The Ruby Language"
+ * books[:black] = "The Well-Grounded Rubyist"
+ *
+ * Hashes are also commonly used as a way to have named parameters in
+ * functions. Note that no brackets are used below. If a hash is the last
+ * argument on a method call, no braces are needed, thus creating a really
+ * clean interface:
+ *
+ * Person.create(name: "John Doe", age: 27)
+ *
+ * def self.create(params)
+ * @name = params[:name]
+ * @age = params[:age]
+ * end
+ *
+ * === Hash Keys
+ *
+ * Two objects refer to the same hash key when their <code>hash</code> value
+ * is identical and the two objects are <code>eql?</code> to each other.
+ *
+ * A user-defined class may be used as a hash key if the <code>hash</code>
+ * and <code>eql?</code> methods are overridden to provide meaningful
+ * behavior. By default, separate instances refer to separate hash keys.
+ *
+ * A typical implementation of <code>hash</code> is based on the
+ * object's data while <code>eql?</code> is usually aliased to the overridden
+ * <code>==</code> method:
+ *
+ * class Book
+ * attr_reader :author, :title
+ *
+ * def initialize(author, title)
+ * @author = author
+ * @title = title
+ * end
+ *
+ * def ==(other)
+ * self.class === other and
+ * other.author == @author and
+ * other.title == @title
+ * end
+ *
+ * alias eql? ==
+ *
+ * def hash
+ * @author.hash ^ @title.hash # XOR
+ * end
+ * end
+ *
+ * book1 = Book.new 'matz', 'Ruby in a Nutshell'
+ * book2 = Book.new 'matz', 'Ruby in a Nutshell'
+ *
+ * reviews = {}
+ *
+ * reviews[book1] = 'Great reference!'
+ * reviews[book2] = 'Nice and compact!'
+ *
+ * reviews.length #=> 1
*
+ * See also Object#hash and Object#eql?
*/
void
diff --git a/include/ruby/st.h b/include/ruby/st.h
index 50f2a75..119dfde 100644
--- a/include/ruby/st.h
+++ b/include/ruby/st.h
@@ -36,7 +36,7 @@ typedef unsigned long st_data_t;
#elif SIZEOF_LONG_LONG == SIZEOF_VOIDP
typedef unsigned LONG_LONG st_data_t;
#else
-# error ---->> st.c requires sizeof(void*) == sizeof(long) to be compiled. <<----
+# error ---->> st.c requires sizeof(void*) == sizeof(long) or sizeof(LONG_LONG) to be compiled. <<----
#endif
#define ST_DATA_T_DEFINED
@@ -74,6 +74,11 @@ struct st_hash_type {
#define ST_INDEX_BITS (sizeof(st_index_t) * CHAR_BIT)
+typedef struct st_packed_entry {
+ st_index_t hash;
+ st_data_t key, val;
+} st_packed_entry;
+
struct st_table {
const struct st_hash_type *type;
st_index_t num_bins;
@@ -91,8 +96,17 @@ struct st_table {
__extension__
#endif
st_index_t num_entries : ST_INDEX_BITS - 1;
- struct st_table_entry **bins;
- struct st_table_entry *head, *tail;
+ union {
+ struct {
+ struct st_table_entry **bins;
+ struct st_table_entry *head, *tail;
+ } big;
+ struct {
+ struct st_packed_entry *entries;
+ st_index_t real_entries;
+ } packed;
+ st_packed_entry upacked;
+ } as;
};
#define st_is_member(table,key) st_lookup((table),(key),(st_data_t *)0)
@@ -114,6 +128,7 @@ int st_insert2(st_table *, st_data_t, st_data_t, st_data_t (*)(st_data_t));
int st_lookup(st_table *, st_data_t, st_data_t *);
int st_get_key(st_table *, st_data_t, st_data_t *);
int st_foreach(st_table *, int (*)(ANYARGS), st_data_t);
+int st_foreach_check(st_table *, int (*)(ANYARGS), st_data_t, st_data_t);
int st_reverse_foreach(st_table *, int (*)(ANYARGS), st_data_t);
void st_add_direct(st_table *, st_data_t, st_data_t);
void st_free_table(st_table *);
diff --git a/internal.h b/internal.h
index 5d0cff0..99b4015 100644
--- a/internal.h
+++ b/internal.h
@@ -112,6 +112,9 @@ VALUE rb_iseq_clone(VALUE iseqval, VALUE newcbase);
/* load.c */
VALUE rb_get_load_path(void);
+void rb_reset_expanded_cache();
+void rb_load_path_ary_push(VALUE path);
+extern VALUE rb_cExpandedPath;
/* math.c */
VALUE rb_math_atan2(VALUE, VALUE);
diff --git a/load.c b/load.c
index 0ff4b60..80b2256 100644
--- a/load.c
+++ b/load.c
@@ -4,6 +4,7 @@
#include "ruby/ruby.h"
#include "ruby/util.h"
+#include "ruby/encoding.h"
#include "internal.h"
#include "dln.h"
#include "eval_intern.h"
@@ -18,6 +19,7 @@ VALUE ruby_dln_librefs;
#define IS_DLEXT(e) (strcmp((e), DLEXT) == 0)
#endif
+static int sorted_loaded_features = 1;
static const char *const loadable_ext[] = {
".rb", DLEXT,
@@ -27,28 +29,45 @@ static const char *const loadable_ext[] = {
0
};
-VALUE
-rb_get_load_path(void)
-{
- VALUE load_path = GET_VM()->load_path;
- return load_path;
-}
+static VALUE rb_checked_expanded_cache(int*);
+static void rb_set_expanded_cache(VALUE, int);
+static VALUE rb_expand_load_paths(long, VALUE*, int*);
+static int cached_expanded_load_path = 1;
+VALUE rb_cExpandedPath;
VALUE
rb_get_expanded_load_path(void)
{
- VALUE load_path = rb_get_load_path();
- VALUE ary;
- long i;
+ VALUE expanded = rb_checked_expanded_cache(NULL);
- ary = rb_ary_new2(RARRAY_LEN(load_path));
- for (i = 0; i < RARRAY_LEN(load_path); ++i) {
- VALUE path = rb_file_expand_path(RARRAY_PTR(load_path)[i], Qnil);
- rb_str_freeze(path);
- rb_ary_push(ary, path);
+ if ( !RTEST(expanded) ) {
+ VALUE load_path = GET_VM()->load_path;
+ int has_relative = 0;
+
+ if (!load_path) return 0;
+
+ expanded = rb_expand_load_paths(
+ RARRAY_LEN(load_path), RARRAY_PTR(load_path),
+ &has_relative);
+ RB_GC_GUARD(load_path);
+
+ if (cached_expanded_load_path) {
+ rb_set_expanded_cache(expanded, has_relative);
+ }
+ } else {
+ expanded = rb_ary_dup(expanded);
}
- rb_obj_freeze(ary);
- return ary;
+ return expanded;
+}
+
+VALUE
+rb_get_load_path(void)
+{
+ VALUE load_path =
+ cached_expanded_load_path ?
+ rb_get_expanded_load_path():
+ GET_VM()->load_path;
+ return load_path;
}
static VALUE
@@ -129,6 +148,9 @@ loaded_feature_path_i(st_data_t v, st_data_t b, st_data_t f)
return ST_STOP;
}
+static long rb_feature_first_equal_or_greater(VALUE, const char *, long);
+static int rb_stop_search_feature(VALUE, const char *, long);
+
static int
rb_feature_p(const char *feature, const char *ext, int rb, int expanded, const char **fn)
{
@@ -151,8 +173,10 @@ rb_feature_p(const char *feature, const char *ext, int rb, int expanded, const c
type = 0;
}
features = get_loaded_features();
- for (i = 0; i < RARRAY_LEN(features); ++i) {
+ i = rb_feature_first_equal_or_greater(features, feature, len);
+ for (; i < RARRAY_LEN(features); ++i) {
v = RARRAY_PTR(features)[i];
+ if (rb_stop_search_feature(v, feature, len)) break;
f = StringValuePtr(v);
if ((n = RSTRING_LEN(v)) < len) continue;
if (strncmp(f, feature, len) != 0) {
@@ -176,14 +200,14 @@ rb_feature_p(const char *feature, const char *ext, int rb, int expanded, const c
}
}
loading_tbl = get_loading_table();
- if (loading_tbl) {
+ if (loading_tbl && loading_tbl->num_entries > 0) {
f = 0;
if (!expanded) {
struct loaded_feature_searching fs;
fs.name = feature;
fs.len = len;
fs.type = type;
- fs.load_path = load_path ? load_path : rb_get_load_path();
+ fs.load_path = load_path ? load_path : rb_get_expanded_load_path();
fs.result = 0;
st_foreach(loading_tbl, loaded_feature_path_i, (st_data_t)&fs);
if ((f = fs.result) != 0) {
@@ -251,6 +275,170 @@ rb_feature_provided(const char *feature, const char **loading)
return FALSE;
}
+static long
+feature_basename_length(const char *feature, long flen)
+{
+ if (sorted_loaded_features) {
+ const char *ext = strrchr(feature, '.');
+ return ext && !strchr(ext, '/') ? ext - feature : flen;
+ } else {
+ return 0;
+ }
+}
+
+static int
+compare_feature_name(const char *left, long llen, const char *right, long rlen)
+{
+ int diff = 0;
+ while (llen-- && rlen--) {
+ diff = left[llen] - right[rlen];
+ if (diff) break;
+ if (left[llen] == '/') break;
+ }
+ return diff;
+}
+
+static int
+rb_compare_feature_name(VALUE loaded, const char *feature, long flen)
+{
+ const char *loaded_name = StringValuePtr(loaded);
+ long loaded_len = feature_basename_length(loaded_name, RSTRING_LEN(loaded));
+ return compare_feature_name(loaded_name, loaded_len, feature, flen);
+}
+
+/* used to find when equal features run out */
+static int
+rb_stop_search_feature(VALUE loaded, const char *feature, long flen)
+{
+ if (sorted_loaded_features)
+ return rb_compare_feature_name(loaded, feature, flen) > 0;
+ else
+ return FALSE;
+}
+
+/* returns first position to search feature from */
+static long
+rb_feature_first_equal_or_greater(VALUE features, const char *feature, long flen)
+{
+ if (sorted_loaded_features) {
+ long before = 0, first = RARRAY_LEN(features);
+ VALUE *values = RARRAY_PTR(features);
+ if (first == 0)
+ return 0;
+ if (rb_compare_feature_name(values[0], feature, flen) >= 0)
+ return 0;
+
+ while (first - before > 1) {
+ long mid = (first + before) / 2;
+ long cmp = rb_compare_feature_name(values[mid], feature, flen);
+ if (cmp >= 0)
+ first = mid;
+ else
+ before = mid;
+ }
+ return first;
+ } else {
+ return 0;
+ }
+}
+
+/* returns position to insert new feature in */
+static long
+rb_feature_first_greater(VALUE features, const char *feature, long flen)
+{
+ if (sorted_loaded_features) {
+ long before = 0, first = RARRAY_LEN(features);
+ VALUE *values = RARRAY_PTR(features);
+ if (first == 0)
+ return 0;
+ if (rb_compare_feature_name(values[0], feature, flen) > 0)
+ return 0;
+ if (rb_compare_feature_name(values[first-1], feature, flen) <= 0)
+ return first;
+
+ while (first - before > 1) {
+ long mid = (first + before) / 2;
+ long cmp = rb_compare_feature_name(values[mid], feature, flen);
+ if (cmp > 0)
+ first = mid;
+ else
+ before = mid;
+ }
+ return first;
+ } else {
+ return RARRAY_LEN(features);
+ }
+}
+
+
+static VALUE
+rb_push_feature_1(VALUE features, VALUE feature)
+{
+ const char *fname = StringValuePtr(feature);
+ long flen = feature_basename_length(fname, RSTRING_LEN(feature));
+ long i = rb_feature_first_greater(features, fname, flen);
+ rb_ary_push(features, feature);
+ if ( i < RARRAY_LEN(features) - 1 ) {
+ MEMMOVE(RARRAY_PTR(features) + i + 1, RARRAY_PTR(features) + i,
+ VALUE, RARRAY_LEN(features) - i - 1);
+ RARRAY_PTR(features)[i] = feature;
+ }
+ return features;
+}
+
+static VALUE
+rb_push_feature_m(long argc, VALUE *argv, VALUE features)
+{
+ while (argc--) {
+ rb_push_feature_1(features, *argv++);
+ }
+ return features;
+}
+
+static VALUE
+rb_concat_features(VALUE features, VALUE add)
+{
+ add = rb_convert_type(add, T_ARRAY, "Array", "to_ary");
+ if (RARRAY_LEN(add)) {
+ rb_push_feature_m(RARRAY_LEN(add), RARRAY_PTR(add), features);
+ }
+ return features;
+}
+static const char *load_features_undefined_methods[] = {
+ "[]=", "reverse!", "rotate!", "sort!", "sort_by!",
+ "collect!", "map!", "shuffle!", "fill", "insert",
+ NULL
+};
+
+static VALUE
+rb_loaded_features_init(void)
+{
+ char *sorted_flag;
+ const char **name;
+ VALUE loaded_features = rb_ary_new();
+ VALUE loaded_features_c = rb_singleton_class(loaded_features);
+
+ sorted_flag = getenv("RUBY_LOADED_FEATURES_SORTED");
+ if (sorted_flag != NULL) {
+ int sorted_set = atoi(sorted_flag);
+ if (RTEST(ruby_verbose))
+ fprintf(stderr, "sorted_loaded_features=%d (%d)\n", sorted_set, sorted_loaded_features);
+ sorted_loaded_features = sorted_set;
+ }
+
+ for(name = load_features_undefined_methods; *name; name++) {
+ rb_undef_method(loaded_features_c, *name);
+ }
+
+ if (sorted_loaded_features) {
+ rb_define_method(loaded_features_c, "<<", rb_push_feature_1, 1);
+ rb_define_method(loaded_features_c, "push", rb_push_feature_m, -1);
+ rb_define_method(loaded_features_c, "concat", rb_concat_features, 1);
+ rb_define_method(loaded_features_c, "unshift", rb_push_feature_m, -1);
+ }
+ return loaded_features;
+}
+
static void
rb_provide_feature(VALUE feature)
{
@@ -258,7 +446,10 @@ rb_provide_feature(VALUE feature)
rb_raise(rb_eRuntimeError,
"$LOADED_FEATURES is frozen; cannot append feature");
}
- rb_ary_push(get_loaded_features(), feature);
+ if (sorted_loaded_features)
+ rb_push_feature_1(get_loaded_features(), feature);
+ else
+ rb_ary_push(get_loaded_features(), feature);
}
void
@@ -760,6 +951,230 @@ rb_f_autoload_p(VALUE obj, VALUE sym)
return rb_mod_autoload_p(klass, sym);
}
+/* $LOAD_PATH methods which invalidates cache */
+static const char *load_path_reset_cache_methods[] = {
+ "[]=", "collect!", "compact!", "delete",
+ "delete_if", "fill", "flatten!", "insert", "keep_if",
+ "map!", "reject!", "replace", "select!", "shuffle!",
+ "sort!", "sort_by!", "uniq!", NULL
+};
+
+/* $LOAD_PATH methods which sends also to cache */
+static const char *load_path_apply_to_cache_methods[] = {
+ "clear", "delete_at", "pop", "reverse!", "rotate!",
+ "shift", "slice!", NULL
+};
+
+/* $LOAD_PATH methods which sends to cache whith expanded arguments */
+static const char *load_path_apply_expanded_methods[] = {
+ "<<", "push", "unshift", NULL
+};
+
+void
+rb_reset_expanded_cache()
+{
+ GET_VM()->load_path_expanded_cache = 0;
+}
+
+static VALUE
+rb_load_path_expanded_cache()
+{
+ VALUE cache = GET_VM()->load_path_expanded_cache;
+ VALUE expanded = Qnil;
+ if (RTEST(cache)) {
+ expanded = RARRAY_PTR(cache)[2];
+ }
+ return expanded;
+}
+
+/* Return cache only if we still in the same working directory
+ * and filesystem_encoding didn't change
+ * Invalidate cache otherwise
+ */
+static VALUE
+rb_checked_expanded_cache(int *has_relative)
+{
+ VALUE cache = GET_VM()->load_path_expanded_cache;
+ VALUE expanded = Qnil;
+ if (RTEST(cache)) {
+ VALUE curwd = RARRAY_PTR(cache)[0];
+ VALUE encindex = RARRAY_PTR(cache)[1];
+ int cache_valid = rb_filesystem_encindex() == FIX2INT(encindex);
+
+ if ( cache_valid ) {
+ cache_valid = curwd == Qtrue;
+ if (has_relative) {
+ *has_relative = cache_valid;
+ }
+ if (!cache_valid ) {
+ char *cwd = my_getcwd();
+ cache_valid = !strcmp(RSTRING_PTR(curwd), cwd);
+ xfree(cwd);
+ }
+ }
+
+ if ( !cache_valid ) {
+ rb_reset_expanded_cache();
+ } else {
+ expanded = RARRAY_PTR(cache)[2];
+ }
+ }
+ RB_GC_GUARD(cache);
+ return expanded;
+}
+
+static void
+rb_set_expanded_cache(VALUE expanded, int has_relative)
+{
+ VALUE cache = rb_ary_new2(3);
+
+ if (has_relative) {
+ char *cwd = my_getcwd();
+ rb_ary_push(cache, rb_str_new_cstr(cwd));
+ xfree(cwd);
+ } else {
+ rb_ary_push(cache, Qtrue);
+ }
+
+ rb_ary_push(cache, INT2FIX(rb_filesystem_encindex()));
+ rb_ary_push(cache, rb_ary_dup(expanded));
+ GET_VM()->load_path_expanded_cache = cache;
+}
+
+static VALUE
+rb_expand_load_paths(long pathc, VALUE* paths, int *has_relative)
+{
+ long i;
+ const char *p;
+ VALUE path, expanded = rb_ary_new2(pathc);
+
+ for(i = 0; i < pathc; i++) {
+ path = rb_get_path(paths[i]);
+ p = RSTRING_PTR(path);
+ *has_relative = *has_relative || !rb_is_absolute_path(p);
+ path = rb_file_expand_path(path, Qnil);
+ RBASIC(path)->klass = rb_cExpandedPath;
+ rb_str_freeze(path);
+ rb_ary_push(expanded, path);
+ }
+
+ return expanded;
+}
+
+/* Invalidating $LOAD_PATH methods implementation */
+static VALUE
+rb_load_path_reset_cache_method(int argc, VALUE *argv, VALUE self)
+{
+ rb_reset_expanded_cache();
+ return rb_call_super(argc, argv);
+}
+
+/* Proxying $LOAD_PATH methods implementation */
+static VALUE
+rb_load_path_apply_to_cache_method(int argc, VALUE *argv, VALUE self)
+{
+ VALUE load_path_expanded = rb_load_path_expanded_cache();
+ if (RTEST(load_path_expanded)) {
+ ID func = rb_frame_this_func();
+ rb_funcall2(load_path_expanded, func, argc, argv);
+ }
+ return rb_call_super(argc, argv);
+}
+
+/* Proxying with expansion $LOAD_PATH methods implementation */
+static VALUE
+rb_load_path_apply_expanded_method(int argc, VALUE *argv, VALUE self)
+{
+ int old_has_relative = 0;
+ /* We call methods on cache only if we still in the same working directory */
+ VALUE load_path_expanded = rb_checked_expanded_cache(&old_has_relative);
+ if (RTEST(load_path_expanded)) {
+ int has_relative = 0;
+ ID func = rb_frame_this_func();
+ VALUE expanded = rb_expand_load_paths(argc, argv, &has_relative);
+
+ rb_funcall2(load_path_expanded, func, argc, RARRAY_PTR(expanded));
+
+ if (!old_has_relative && has_relative) {
+ rb_set_expanded_cache(load_path_expanded, has_relative);
+ }
+ RB_GC_GUARD(expanded);
+ }
+ return rb_call_super(argc, argv);
+}
+/* $LOAD_PATH.concat(ary) - special, we call push(*ary) instead
+ * cause I'm lazy a bit and wish not to rewrite method above second time :)
+ */
+static VALUE
+rb_load_path_concat(VALUE self, VALUE ary)
+{
+ ID push;
+ CONST_ID(push, "push");
+ RB_GC_GUARD(ary);
+ return rb_funcall2(self, push, (int)RARRAY_LEN(ary), RARRAY_PTR(ary));
+}
+
+void
+rb_load_path_ary_push(VALUE path)
+{
+ int old_has_relative = 0;
+ VALUE load_path_expanded = rb_checked_expanded_cache(&old_has_relative);
+ if (RTEST(load_path_expanded)) {
+ int has_relative = 0;
+ VALUE expanded = rb_expand_load_paths(1, &path, &has_relative);
+
+ rb_ary_push(load_path_expanded, RARRAY_PTR(expanded)[0]);
+
+ if (!old_has_relative && has_relative) {
+ rb_set_expanded_cache(load_path_expanded, has_relative);
+ }
+ RB_GC_GUARD(expanded);
+ }
+
+ rb_ary_push(GET_VM()->load_path, path);
+}
+
+static VALUE
+rb_load_path_init(void)
+{
+ const char **name;
+ VALUE load_path = rb_ary_new();
+ char *cached_flag;
+
+ cached_flag = getenv("RUBY_CACHED_LOAD_PATH");
+ if (cached_flag != NULL) {
+ cached_expanded_load_path = atoi(cached_flag);
+ }
+
+ rb_cExpandedPath = rb_class_new(rb_cString); /* XXX could GC collect it before next line is executed? */
+ rb_iv_set(rb_cFile, "expanded_path", rb_cExpandedPath); /* prevent from GC */
+
+ /* Do all the magick if user did not disable it
+ * with RUBY_CACHED_LOAD_PATH=0 environment variable
+ */
+ if (cached_expanded_load_path) {
+ VALUE load_path_c = rb_singleton_class(load_path);
+
+ for(name = load_path_reset_cache_methods; *name; name++ ) {
+ rb_define_method(load_path_c, *name, rb_load_path_reset_cache_method, -1);
+ }
+
+ for(name = load_path_apply_to_cache_methods; *name; name++ ) {
+ rb_define_method(load_path_c, *name, rb_load_path_apply_to_cache_method, -1);
+ }
+
+ for(name = load_path_apply_expanded_methods; *name; name++ ) {
+ rb_define_method(load_path_c, *name, rb_load_path_apply_expanded_method, -1);
+ }
+
+ rb_define_method(load_path_c, "concat", rb_load_path_concat, 1);
+ }
+
+ rb_reset_expanded_cache();
+
+ return load_path;
+}
+
void
Init_load()
{
@@ -772,11 +1187,11 @@ Init_load()
rb_define_hooked_variable(var_load_path, (VALUE*)vm, load_path_getter, rb_gvar_readonly_setter);
rb_alias_variable(rb_intern("$-I"), id_load_path);
rb_alias_variable(rb_intern("$LOAD_PATH"), id_load_path);
- vm->load_path = rb_ary_new();
+ vm->load_path = rb_load_path_init();
rb_define_virtual_variable("$\"", get_loaded_features, 0);
rb_define_virtual_variable("$LOADED_FEATURES", get_loaded_features, 0);
- vm->loaded_features = rb_ary_new();
+ vm->loaded_features = rb_loaded_features_init();
rb_define_global_function("load", rb_f_load, -1);
rb_define_global_function("require", rb_f_require, 1);
diff --git a/pool_alloc.h b/pool_alloc.h
new file mode 100644
index 0000000..957708e
--- /dev/null
+++ b/pool_alloc.h
@@ -0,0 +1,11 @@
+#ifndef POOL_ALLOC_H
+#define POOL_ALLOC_H
+
+#define POOL_ALLOC_API
+#ifdef POOL_ALLOC_API
+void ruby_xpool_free(void *ptr);
+void *ruby_xpool_malloc_6p();
+void *ruby_xpool_malloc_11p();
+#endif
+
+#endif
diff --git a/pool_alloc.inc.h b/pool_alloc.inc.h
new file mode 100644
index 0000000..026f40c
--- /dev/null
+++ b/pool_alloc.inc.h
@@ -0,0 +1,223 @@
+/*
+ * this is generic pool allocator
+ * you should define following macroses:
+ * ITEM_NAME - unique identifier, which allows to hold functions in a namespace
+ * ITEM_TYPEDEF(name) - passed to typedef to localize item type
+ * free_entry - desired name of function for free entry
+ * alloc_entry - defired name of function for allocate entry
+ */
+
+#if POOL_ALLOC_PART == 1
+#ifdef HEAP_ALIGN_LOG
+#define DEFAULT_POOL_SIZE (1 << HEAP_ALIGN_LOG)
+#else
+#define DEFAULT_POOL_SIZE (sizeof(void*) * 2048)
+#endif
+typedef unsigned int pool_holder_counter;
+
+typedef struct pool_entry_list pool_entry_list;
+typedef struct pool_holder pool_holder;
+
+typedef struct pool_header {
+ pool_holder *first;
+ rb_atomic_t lock;
+ pool_holder_counter size; // size of entry in sizeof(void*) items
+ pool_holder_counter total; // size of entry in sizeof(void*) items
+} pool_header;
+
+struct pool_holder {
+ pool_holder_counter free, total;
+ pool_header *header;
+ void *freep;
+ pool_holder *fore, *back;
+ void *data[1];
+};
+#define POOL_DATA_SIZE(pool_size) (((pool_size) - sizeof(void*) * 6 - offsetof(pool_holder, data)) / sizeof(void*))
+#define POOL_ENTRY_SIZE(item_type) ((sizeof(item_type) - 1) / sizeof(void*) + 1)
+#define POOL_HOLDER_COUNT(pool_size, item_type) (POOL_DATA_SIZE(pool_size)/POOL_ENTRY_SIZE(item_type))
+#define INIT_POOL(item_type) {NULL, 0, POOL_ENTRY_SIZE(item_type), POOL_HOLDER_COUNT(DEFAULT_POOL_SIZE, item_type)}
+
+#elif POOL_ALLOC_PART == 2
+
+#if defined(_WIN32)
+#define native_thread_yield() Sleep(0)
+#elif HAVE_SCHED_YIELD
+#define native_thread_yield() (void)sched_yield()
+#else
+#define native_thread_yield() ((void)0)
+#endif
+
+#define MAX_TRY_CICLES 5
+static inline int
+living_threads()
+{
+ rb_vm_t *vm = GET_VM();
+ st_table *living_threads;
+ return vm && (living_threads = vm->living_threads) ? living_threads->num_entries : 1;
+}
+
+static void
+lock_header(pool_header *header)
+{
+ int i;
+ if (living_threads() == 1) {
+ header->lock = 1;
+ return;
+ }
+ i = MAX_TRY_CICLES;
+ while(ATOMIC_EXCHANGE(header->lock, 1)) {
+ if (--i == 0) {
+ native_thread_yield();
+ i = MAX_TRY_CICLES;
+ }
+ }
+}
+
+static inline void
+unlock_header(pool_header *header)
+{
+ if (living_threads() == 1) {
+ header->lock = 0;
+ return;
+ }
+ ATOMIC_SET(header->lock, 0);
+}
+
+static pool_holder *
+pool_holder_alloc(pool_header *header)
+{
+ pool_holder *holder;
+ pool_holder_counter i, size, count;
+ register void **ptr;
+
+ size_t sz = offsetof(pool_holder, data) +
+ header->size * header->total * sizeof(void*);
+#define objspace (&rb_objspace)
+ unlock_header(header);
+ vm_malloc_prepare(objspace, DEFAULT_POOL_SIZE);
+ lock_header(header);
+ if (header->first != NULL) {
+ return header->first;
+ }
+ holder = (pool_holder*) aligned_malloc(DEFAULT_POOL_SIZE, sz);
+ if (!holder) {
+ unlock_header(header);
+ if (!garbage_collect_with_gvl(objspace)) {
+ ruby_memerror();
+ }
+ holder = (pool_holder*) aligned_malloc(DEFAULT_POOL_SIZE, sz);
+ if (!holder) {
+ ruby_memerror();
+ }
+ lock_header(header);
+ }
+ malloc_increase += DEFAULT_POOL_SIZE;
+#if CALC_EXACT_MALLOC_SIZE
+ objspace->malloc_params.allocated_size += DEFAULT_POOL_SIZE;
+ objspace->malloc_params.allocations++;
+#endif
+#undef objspace
+
+ size = header->size;
+ count = header->total;
+ holder->free = count;
+ holder->total = count;
+ holder->header = header;
+ holder->fore = NULL;
+ holder->back = NULL;
+ holder->freep = &holder->data;
+ ptr = holder->data;
+ for(i = count - 1; i; i-- ) {
+ ptr = *ptr = ptr + size;
+ }
+ *ptr = NULL;
+ header->first = holder;
+ return holder;
+}
+
+static inline void
+pool_holder_unchaing(pool_header *header, pool_holder *holder)
+{
+ register pool_holder *fore = holder->fore, *back = holder->back;
+ holder->fore = NULL;
+ holder->back = NULL;
+ if (fore != NULL) fore->back = back;
+ if (back != NULL) back->fore = fore;
+ else header->first = fore;
+}
+
+static inline pool_holder *
+entry_holder(void **entry)
+{
+ return (pool_holder*)(((uintptr_t)entry) & ~(DEFAULT_POOL_SIZE - 1));
+}
+
+static inline void
+pool_free_entry(void **entry)
+{
+ pool_holder *holder = entry_holder(entry);
+ pool_header *header = holder->header;
+
+ lock_header(header);
+
+ if (holder->free++ == 0) {
+ register pool_holder *first = header->first;
+ if (first == NULL) {
+ header->first = holder;
+ } else {
+ holder->back = first;
+ holder->fore = first->fore;
+ first->fore = holder;
+ if (holder->fore)
+ holder->fore->back = holder;
+ }
+ } else if (holder->free == holder->total && header->first != holder ) {
+ pool_holder_unchaing(header, holder);
+ aligned_free(holder);
+#if CALC_EXACT_MALLOC_SIZE
+ rb_objspace.malloc_params.allocated_size -= DEFAULT_POOL_SIZE;
+ rb_objspace.malloc_params.allocations--;
+#endif
+ unlock_header(header);
+ return;
+ }
+
+ *entry = holder->freep;
+ holder->freep = entry;
+ unlock_header(header);
+}
+
+static inline void*
+pool_alloc_entry(pool_header *header)
+{
+ pool_holder *holder;
+ void **result;
+
+ lock_header(header);
+ holder = header->first;
+
+ if (holder == NULL) {
+ holder = pool_holder_alloc(header);
+ }
+
+ result = holder->freep;
+ holder->freep = *result;
+
+ if (--holder->free == 0) {
+ pool_holder_unchaing(header, holder);
+ }
+
+ unlock_header(header);
+
+ return result;
+}
+
+static void
+pool_finalize_header(pool_header *header)
+{
+ if (header->first) {
+ aligned_free(header->first);
+ header->first = NULL;
+ }
+}
+#endif
diff --git a/ruby.c b/ruby.c
index 3c97d01..b9b9fd5 100644
--- a/ruby.c
+++ b/ruby.c
@@ -209,7 +209,6 @@ push_include(const char *path, VALUE (*filter)(VALUE))
{
const char sep = PATH_SEP_CHAR;
const char *p, *s;
- VALUE load_path = GET_VM()->load_path;
p = path;
while (*p) {
@@ -217,7 +216,7 @@ push_include(const char *path, VALUE (*filter)(VALUE))
p++;
if (!*p) break;
for (s = p; *s && *s != sep; s = CharNext(s));
- rb_ary_push(load_path, (*filter)(rubylib_mangled_path(p, s - p)));
+ rb_load_path_ary_push((*filter)(rubylib_mangled_path(p, s - p)));
p = s;
}
}
@@ -338,7 +337,6 @@ ruby_init_loadpath(void)
void
ruby_init_loadpath_safe(int safe_level)
{
- VALUE load_path;
ID id_initial_load_path_mark;
extern const char ruby_initial_load_paths[];
const char *paths = ruby_initial_load_paths;
@@ -438,7 +436,6 @@ ruby_init_loadpath_safe(int safe_level)
#define RUBY_RELATIVE(path, len) rubylib_mangled_path((path), (len))
#define PREFIX_PATH() RUBY_RELATIVE(exec_prefix, sizeof(exec_prefix)-1)
#endif
- load_path = GET_VM()->load_path;
if (safe_level == 0) {
#ifdef MANGLED_PATH
@@ -452,7 +449,7 @@ ruby_init_loadpath_safe(int safe_level)
size_t len = strlen(paths);
VALUE path = RUBY_RELATIVE(paths, len);
rb_ivar_set(path, id_initial_load_path_mark, path);
- rb_ary_push(load_path, path);
+ rb_load_path_ary_push(path);
paths += len + 1;
}
@@ -1349,6 +1346,7 @@ process_options(int argc, char **argv, struct cmdline_options *opt)
for (i = 0; i < RARRAY_LEN(load_path); ++i) {
rb_enc_associate(RARRAY_PTR(load_path)[i], lenc);
}
+ rb_reset_expanded_cache();
}
if (!(opt->disable & DISABLE_BIT(gems))) {
#if defined DISABLE_RUBYGEMS && DISABLE_RUBYGEMS
diff --git a/st.c b/st.c
index fda5784..20ec427 100644
--- a/st.c
+++ b/st.c
@@ -7,6 +7,7 @@
#include "st.h"
#else
#include "ruby/ruby.h"
+#include "pool_alloc.h"
#endif
#include <stdio.h>
@@ -25,8 +26,17 @@ struct st_table_entry {
st_table_entry *fore, *back;
};
-#define ST_DEFAULT_MAX_DENSITY 5
+#define STATIC_ASSERT(name, expr) typedef int static_assert_##name##_check[(expr) ? 1 : -1];
+
+#define ST_DEFAULT_MAX_DENSITY 2
#define ST_DEFAULT_INIT_TABLE_SIZE 11
+#define ST_DEFAULT_SECOND_TABLE_SIZE 19
+#define ST_DEFAULT_PACKED_TABLE_SIZE 18
+#define PACKED_UNIT (int)(sizeof(st_packed_entry) / sizeof(st_table_entry*))
+#define MAX_PACKED_HASH (int)(ST_DEFAULT_PACKED_TABLE_SIZE * sizeof(st_table_entry*) / sizeof(st_packed_entry))
+
+STATIC_ASSERT(st_packed_entry, sizeof(st_packed_entry) == sizeof(st_table_entry*[PACKED_UNIT]))
+STATIC_ASSERT(st_packed_bins, sizeof(st_packed_entry[MAX_PACKED_HASH]) <= sizeof(st_table_entry*[ST_DEFAULT_PACKED_TABLE_SIZE]))
/*
* DEFAULT_MAX_DENSITY is the default for the largest we allow the
@@ -38,7 +48,8 @@ struct st_table_entry {
*
*/
-static const struct st_hash_type type_numhash = {
+#define type_numhash st_hashtype_num
+const struct st_hash_type st_hashtype_num = {
st_numcmp,
st_numhash,
};
@@ -61,20 +72,128 @@ static void rehash(st_table *);
#ifdef RUBY
#define malloc xmalloc
#define calloc xcalloc
+#define realloc xrealloc
#define free(x) xfree(x)
#endif
#define numberof(array) (int)(sizeof(array) / sizeof((array)[0]))
-#define alloc(type) (type*)malloc((size_t)sizeof(type))
-#define Calloc(n,s) (char*)calloc((n),(s))
-
#define EQUAL(table,x,y) ((x)==(y) || (*(table)->type->compare)((x),(y)) == 0)
-/* remove cast to unsigned int in the future */
-#define do_hash(key,table) (unsigned int)(st_index_t)(*(table)->type->hash)((key))
+#define do_hash(key,table) (st_index_t)(*(table)->type->hash)((key))
#define do_hash_bin(key,table) (do_hash((key), (table))%(table)->num_bins)
+/* preparation for possible allocation improvements */
+#ifdef POOL_ALLOC_API
+#define st_alloc_entry() (st_table_entry *)ruby_xpool_malloc_6p()
+#define st_free_entry(entry) ruby_xpool_free(entry)
+#define st_alloc_table() (st_table *)ruby_xpool_malloc_6p()
+#define st_dealloc_table(table) ruby_xpool_free(table)
+static inline st_table_entry **
+st_alloc_bins(st_index_t size)
+{
+ st_table_entry **result;
+ if (size == 11) {
+ result = (st_table_entry **) ruby_xpool_malloc_11p();
+ memset(result, 0, 11 * sizeof(st_table_entry *));
+ }
+ else
+ result = (st_table_entry **) ruby_xcalloc(size, sizeof(st_table_entry*));
+ return result;
+}
+static inline void
+st_free_bins(st_table_entry **bins, st_index_t size)
+{
+ if (size == 11)
+ ruby_xpool_free(bins);
+ else
+ ruby_xfree(bins);
+}
+static inline st_table_entry**
+st_realloc_bins(st_table_entry **bins, st_index_t newsize, st_index_t oldsize)
+{
+ st_table_entry **new_bins = st_alloc_bins(newsize);
+ st_free_bins(bins, oldsize);
+ return new_bins;
+}
+#else
+#define st_alloc_entry() (st_table_entry *)malloc(sizeof(st_table_entry))
+#define st_free_entry(entry) free(entry)
+#define st_alloc_table() (st_table *)malloc(sizeof(st_table))
+#define st_dealloc_table(table) free(table)
+#define st_alloc_bins(size) (st_table_entry **)calloc(size, sizeof(st_table_entry *))
+#define st_free_bins(bins, size) free(bins)
+static inline st_table_entry**
+st_realloc_bins(st_table_entry **bins, st_index_t newsize, st_index_t oldsize)
+{
+ bins = (st_table_entry **)realloc(bins, newsize * sizeof(st_table_entry *));
+ MEMZERO(bins, st_table_entry*, newsize);
+ return bins;
+}
+#endif
+
+/* Shortage */
+#define bins as.big.bins
+#define head as.big.head
+#define tail as.big.tail
+#define real_entries as.packed.real_entries
+
+/* preparation for possible packing improvements */
+#define PACKED_BINS(table) ((table)->as.packed.entries)
+#define PACKED_ENT(table, i) PACKED_BINS(table)[i]
+#define PKEY(table, i) PACKED_ENT((table), (i)).key
+#define PVAL(table, i) PACKED_ENT((table), (i)).val
+#define PHASH(table, i) PACKED_ENT((table), (i)).hash
+#define PKEY_SET(table, i, v) (PKEY((table), (i)) = (v))
+#define PVAL_SET(table, i, v) (PVAL((table), (i)) = (v))
+#define PHASH_SET(table, i, v) (PHASH((table), (i)) = (v))
+
+/* this function depends much on packed layout, so that it placed here */
+static inline void
+remove_packed_entry(st_table *table, st_index_t i)
+{
+ table->real_entries--;
+ table->num_entries--;
+ if (i < table->real_entries) {
+ MEMMOVE(&PACKED_ENT(table, i), &PACKED_ENT(table, i+1),
+ st_packed_entry, table->real_entries - i);
+ }
+}
+
+static inline void
+remove_safe_packed_entry(st_table *table, st_index_t i, st_data_t never)
+{
+ table->num_entries--;
+ PKEY_SET(table, i, never);
+ PVAL_SET(table, i, never);
+ PHASH_SET(table, i, 0);
+}
+
+/* ultrapacking */
+#define real_upacked num_bins
+#define MAX_UPACKED_HASH 1
+#define ULTRAPACKED(table) ((table)->real_upacked <= 1)
+#define UPACKED_ENT(table) ((table)->as.upacked)
+#define UPKEY(table) UPACKED_ENT(table).key
+#define UPVAL(table) UPACKED_ENT(table).val
+#define UPHASH(table) UPACKED_ENT(table).hash
+#define UPKEY_SET(table, v) (UPACKED_ENT(table).key = (v))
+#define UPVAL_SET(table, v) (UPACKED_ENT(table).val = (v))
+#define UPHASH_SET(table, v) (UPACKED_ENT(table).hash = (v))
+static inline void
+remove_upacked_entry(st_table *table)
+{
+ table->real_upacked = table->num_entries = 0;
+}
+
+static inline void
+remove_safe_upacked_entry(st_table *table, st_data_t never)
+{
+ table->num_entries = 0;
+ UPKEY_SET(table, never);
+ UPVAL_SET(table, never);
+ UPHASH_SET(table, 0);
+}
/*
* MINSIZE is the minimum size of a dictionary.
*/
@@ -85,8 +204,8 @@ static void rehash(st_table *);
Table of prime numbers 2^n+a, 2<=n<=30.
*/
static const unsigned int primes[] = {
- 8 + 3,
- 16 + 3,
+ ST_DEFAULT_INIT_TABLE_SIZE,
+ ST_DEFAULT_SECOND_TABLE_SIZE,
32 + 5,
64 + 3,
128 + 3,
@@ -161,8 +280,6 @@ stat_col(void)
}
#endif
-#define MAX_PACKED_NUMHASH (ST_DEFAULT_INIT_TABLE_SIZE/2)
-
st_table*
st_init_table_with_size(const struct st_hash_type *type, st_index_t size)
{
@@ -181,14 +298,19 @@ st_init_table_with_size(const struct st_hash_type *type, st_index_t size)
}
#endif
- size = new_size(size); /* round up to prime number */
- tbl = alloc(st_table);
+ tbl = st_alloc_table();
tbl->type = type;
tbl->num_entries = 0;
- tbl->entries_packed = type == &type_numhash && size/2 <= MAX_PACKED_NUMHASH;
+ tbl->entries_packed = size <= MAX_PACKED_HASH;
+ if (tbl->entries_packed) {
+ size = size <= MAX_UPACKED_HASH ? 0 : ST_DEFAULT_PACKED_TABLE_SIZE;
+ }
+ else {
+ size = new_size(size); /* round up to prime number */
+ }
tbl->num_bins = size;
- tbl->bins = (st_table_entry **)Calloc(size, sizeof(st_table_entry*));
+ tbl->bins = size ? st_alloc_bins(size) : 0;
tbl->head = 0;
tbl->tail = 0;
@@ -243,17 +365,23 @@ st_clear(st_table *table)
register st_table_entry *ptr, *next;
st_index_t i;
+ if (ULTRAPACKED(table)) {
+ remove_upacked_entry(table);
+ return;
+ }
+
if (table->entries_packed) {
table->num_entries = 0;
+ table->real_entries = 0;
return;
}
- for(i = 0; i < table->num_bins; i++) {
+ for (i = 0; i < table->num_bins; i++) {
ptr = table->bins[i];
table->bins[i] = 0;
while (ptr != 0) {
next = ptr->next;
- free(ptr);
+ st_free_entry(ptr);
ptr = next;
}
}
@@ -266,14 +394,19 @@ void
st_free_table(st_table *table)
{
st_clear(table);
- free(table->bins);
- free(table);
+ if (!ULTRAPACKED(table)) {
+ st_free_bins(table->bins, table->num_bins);
+ }
+ st_dealloc_table(table);
}
size_t
st_memsize(const st_table *table)
{
- if (table->entries_packed) {
+ if (ULTRAPACKED(table)) {
+ return sizeof(st_table);
+ }
+ else if (table->entries_packed) {
return table->num_bins * sizeof (void *) + sizeof(st_table);
}
else {
@@ -306,46 +439,77 @@ count_collision(const struct st_hash_type *type)
#define FOUND_ENTRY
#endif
-#define FIND_ENTRY(table, ptr, hash_val, bin_pos) do {\
- (bin_pos) = (hash_val)%(table)->num_bins;\
- (ptr) = (table)->bins[(bin_pos)];\
- FOUND_ENTRY;\
- if (PTR_NOT_EQUAL((table), (ptr), (hash_val), key)) {\
- COLLISION;\
- while (PTR_NOT_EQUAL((table), (ptr)->next, (hash_val), key)) {\
- (ptr) = (ptr)->next;\
- }\
- (ptr) = (ptr)->next;\
- }\
-} while (0)
+#define FIND_ENTRY(table, ptr, hash_val, bin_pos) \
+ ((ptr) = find_entry((table), key, (hash_val), ((bin_pos) = (hash_val)%(table)->num_bins)))
+
+static st_table_entry *
+find_entry(st_table *table, st_data_t key, st_index_t hash_val, st_index_t bin_pos)
+{
+ register st_table_entry *ptr = table->bins[bin_pos];
+ FOUND_ENTRY;
+ if (PTR_NOT_EQUAL(table, ptr, hash_val, key)) {
+ COLLISION;
+ while (PTR_NOT_EQUAL(table, ptr->next, hash_val, key)) {
+ ptr = ptr->next;
+ }
+ ptr = ptr->next;
+ }
+ return ptr;
+}
+
+static inline st_index_t
+find_packed_index(st_table *table, st_index_t hash_val, st_data_t key)
+{
+ st_index_t i = 0;
+ while (i < table->real_entries &&
+ (PHASH(table, i) != hash_val || !EQUAL(table, key, PKEY(table, i)))) {
+ i++;
+ }
+ return i;
+}
+
+static inline int
+check_upacked(st_table *table, st_index_t hash_val, st_data_t key)
+{
+ return table->num_entries &&
+ UPHASH(table) == hash_val &&
+ EQUAL(table, key, UPKEY(table));
+}
#define collision_check 0
int
st_lookup(st_table *table, register st_data_t key, st_data_t *value)
{
- st_index_t hash_val, bin_pos;
+ st_index_t hash_val;
register st_table_entry *ptr;
+ hash_val = do_hash(key, table);
+
+ if (ULTRAPACKED(table)) {
+ if (check_upacked(table, hash_val, key)) {
+ if (value != 0) *value = UPVAL(table);
+ return 1;
+ }
+ return 0;
+ }
+
if (table->entries_packed) {
- st_index_t i;
- for (i = 0; i < table->num_entries; i++) {
- if ((st_data_t)table->bins[i*2] == key) {
- if (value !=0) *value = (st_data_t)table->bins[i*2+1];
- return 1;
- }
- }
+ st_index_t i = find_packed_index(table, hash_val, key);
+ if (i < table->real_entries) {
+ if (value != 0) *value = PVAL(table, i);
+ return 1;
+ }
return 0;
}
- hash_val = do_hash(key, table);
- FIND_ENTRY(table, ptr, hash_val, bin_pos);
+ ptr = find_entry(table, key, hash_val, hash_val % table->num_bins);
if (ptr == 0) {
return 0;
}
else {
- if (value != 0) *value = ptr->record;
+ if (value != 0) *value = ptr->record;
return 1;
}
}
@@ -353,22 +517,29 @@ st_lookup(st_table *table, register st_data_t key, st_data_t *value)
int
st_get_key(st_table *table, register st_data_t key, st_data_t *result)
{
- st_index_t hash_val, bin_pos;
+ st_index_t hash_val;
register st_table_entry *ptr;
+ hash_val = do_hash(key, table);
+
+ if (ULTRAPACKED(table)) {
+ if (check_upacked(table, hash_val, key)) {
+ if (result != 0) *result = UPKEY(table);
+ return 1;
+ }
+ return 0;
+ }
+
if (table->entries_packed) {
- st_index_t i;
- for (i = 0; i < table->num_entries; i++) {
- if ((st_data_t)table->bins[i*2] == key) {
- if (result !=0) *result = (st_data_t)table->bins[i*2];
- return 1;
- }
- }
+ st_index_t i = find_packed_index(table, hash_val, key);
+ if (i < table->real_entries) {
+ if (result != 0) *result = PKEY(table, i);
+ return 1;
+ }
return 0;
}
- hash_val = do_hash(key, table);
- FIND_ENTRY(table, ptr, hash_val, bin_pos);
+ ptr = find_entry(table, key, hash_val, hash_val % table->num_bins);
if (ptr == 0) {
return 0;
@@ -382,85 +553,151 @@ st_get_key(st_table *table, register st_data_t key, st_data_t *result)
#undef collision_check
#define collision_check 1
-#define MORE_PACKABLE_P(table) \
- ((st_index_t)((table)->num_entries+1) * 2 <= (table)->num_bins && \
- (table)->num_entries+1 <= MAX_PACKED_NUMHASH)
-
-#define ADD_DIRECT(table, key, value, hash_val, bin_pos)\
-do {\
- st_table_entry *entry;\
- if ((table)->num_entries > ST_DEFAULT_MAX_DENSITY * (table)->num_bins) {\
- rehash(table);\
- (bin_pos) = (hash_val) % (table)->num_bins;\
- }\
- \
- entry = alloc(st_table_entry);\
- \
- entry->hash = (hash_val);\
- entry->key = (key);\
- entry->record = (value);\
- entry->next = (table)->bins[(bin_pos)];\
- if ((table)->head != 0) {\
- entry->fore = 0;\
- (entry->back = (table)->tail)->fore = entry;\
- (table)->tail = entry;\
- }\
- else {\
- (table)->head = (table)->tail = entry;\
- entry->fore = entry->back = 0;\
- }\
- (table)->bins[(bin_pos)] = entry;\
- (table)->num_entries++;\
-} while (0)
+static inline st_table_entry *
+new_entry(st_table * table, st_data_t key, st_data_t value,
+ st_index_t hash_val, register st_index_t bin_pos)
+{
+ register st_table_entry *entry = st_alloc_entry();
+
+ entry->next = table->bins[bin_pos];
+ table->bins[bin_pos] = entry;
+ entry->hash = hash_val;
+ entry->key = key;
+ entry->record = value;
+
+ return entry;
+}
+
+static inline void
+add_direct(st_table *table, st_data_t key, st_data_t value,
+ st_index_t hash_val, register st_index_t bin_pos)
+{
+ register st_table_entry *entry;
+ if (table->num_entries > ST_DEFAULT_MAX_DENSITY * table->num_bins) {
+ rehash(table);
+ bin_pos = hash_val % table->num_bins;
+ }
+
+ entry = new_entry(table, key, value, hash_val, bin_pos);
+
+ if (table->head != 0) {
+ entry->fore = 0;
+ (entry->back = table->tail)->fore = entry;
+ table->tail = entry;
+ }
+ else {
+ table->head = table->tail = entry;
+ entry->fore = entry->back = 0;
+ }
+ table->num_entries++;
+}
static void
unpack_entries(register st_table *table)
{
st_index_t i;
- struct st_table_entry *packed_bins[MAX_PACKED_NUMHASH*2];
+ st_packed_entry packed_bins[MAX_PACKED_HASH];
+ register st_table_entry *entry, *preventry = 0, **chain;
st_table tmp_table = *table;
- memcpy(packed_bins, table->bins, sizeof(struct st_table_entry *) * table->num_entries*2);
- table->bins = packed_bins;
+ MEMCPY(packed_bins, PACKED_BINS(table), st_packed_entry, MAX_PACKED_HASH);
+ table->as.packed.entries = packed_bins;
tmp_table.entries_packed = 0;
- tmp_table.num_entries = 0;
- memset(tmp_table.bins, 0, sizeof(struct st_table_entry *) * tmp_table.num_bins);
- for (i = 0; i < table->num_entries; i++) {
- st_insert(&tmp_table, (st_data_t)packed_bins[i*2], (st_data_t)packed_bins[i*2+1]);
- }
+#if ST_DEFAULT_INIT_TABLE_SIZE == ST_DEFAULT_PACKED_TABLE_SIZE
+ MEMZERO(tmp_table.bins, st_table_entry*, tmp_table.num_bins);
+#else
+ tmp_table.bins = st_realloc_bins(tmp_table.bins, ST_DEFAULT_INIT_TABLE_SIZE, tmp_table.num_bins);
+ tmp_table.num_bins = ST_DEFAULT_INIT_TABLE_SIZE;
+#endif
+ i = 0;
+ chain = &tmp_table.head;
+ do {
+ st_data_t key = packed_bins[i].key;
+ st_data_t val = packed_bins[i].val;
+ st_index_t hash = packed_bins[i].hash;
+ entry = new_entry(&tmp_table, key, val, hash,
+ hash % ST_DEFAULT_INIT_TABLE_SIZE);
+ *chain = entry;
+ entry->back = preventry;
+ preventry = entry;
+ chain = &entry->fore;
+ } while (++i < MAX_PACKED_HASH);
+ *chain = NULL;
+ tmp_table.tail = entry;
*table = tmp_table;
}
+static void
+add_packed_direct(st_table *table, st_data_t key, st_data_t value, st_index_t hash_val)
+{
+ if (table->real_entries < MAX_PACKED_HASH) {
+ st_index_t i = table->real_entries++;
+ PKEY_SET(table, i, key);
+ PVAL_SET(table, i, value);
+ PHASH_SET(table, i, hash_val);
+ table->num_entries++;
+ }
+ else {
+ unpack_entries(table);
+ add_direct(table, key, value, hash_val, hash_val % table->num_bins);
+ }
+}
+
+static void
+add_upacked_direct(register st_table *table, register st_data_t key, st_data_t value, st_index_t hash_val)
+{
+ if (table->real_upacked) {
+ st_packed_entry *entries = (st_packed_entry *) st_alloc_bins(ST_DEFAULT_PACKED_TABLE_SIZE);
+ entries[0] = UPACKED_ENT(table);
+ entries[1].hash = hash_val;
+ entries[1].key = key;
+ entries[1].val = value;
+ table->num_bins = ST_DEFAULT_PACKED_TABLE_SIZE;
+ table->real_entries = 2;
+ table->num_entries++;
+ table->as.packed.entries = entries;
+ }
+ else {
+ table->real_upacked = 1;
+ table->num_entries = 1;
+ UPHASH_SET(table, hash_val);
+ UPKEY_SET(table, key);
+ UPVAL_SET(table, value);
+ }
+}
+
int
st_insert(register st_table *table, register st_data_t key, st_data_t value)
{
- st_index_t hash_val, bin_pos;
+ st_index_t hash_val;
+ register st_index_t bin_pos;
register st_table_entry *ptr;
+ hash_val = do_hash(key, table);
+
+ if (ULTRAPACKED(table)) {
+ if (check_upacked(table, hash_val, key)) {
+ UPVAL_SET(table, value);
+ return 1;
+ }
+ add_upacked_direct(table, key, value, hash_val);
+ return 0;
+ }
+
if (table->entries_packed) {
- st_index_t i;
- for (i = 0; i < table->num_entries; i++) {
- if ((st_data_t)table->bins[i*2] == key) {
- table->bins[i*2+1] = (struct st_table_entry*)value;
- return 1;
- }
- }
- if (MORE_PACKABLE_P(table)) {
- i = table->num_entries++;
- table->bins[i*2] = (struct st_table_entry*)key;
- table->bins[i*2+1] = (struct st_table_entry*)value;
- return 0;
- }
- else {
- unpack_entries(table);
+ st_index_t i = find_packed_index(table, hash_val, key);
+ if (i < table->real_entries) {
+ PVAL_SET(table, i, value);
+ return 1;
}
+ add_packed_direct(table, key, value, hash_val);
+ return 0;
}
- hash_val = do_hash(key, table);
FIND_ENTRY(table, ptr, hash_val, bin_pos);
if (ptr == 0) {
- ADD_DIRECT(table, key, value, hash_val, bin_pos);
+ add_direct(table, key, value, hash_val, bin_pos);
return 0;
}
else {
@@ -473,34 +710,38 @@ int
st_insert2(register st_table *table, register st_data_t key, st_data_t value,
st_data_t (*func)(st_data_t))
{
- st_index_t hash_val, bin_pos;
+ st_index_t hash_val;
+ register st_index_t bin_pos;
register st_table_entry *ptr;
+ hash_val = do_hash(key, table);
+
+ if (ULTRAPACKED(table)) {
+ if (check_upacked(table, hash_val, key)) {
+ UPVAL_SET(table, value);
+ return 1;
+ }
+ key = (*func)(key);
+ add_upacked_direct(table, key, value, hash_val);
+ return 0;
+ }
+
if (table->entries_packed) {
- st_index_t i;
- for (i = 0; i < table->num_entries; i++) {
- if ((st_data_t)table->bins[i*2] == key) {
- table->bins[i*2+1] = (struct st_table_entry*)value;
- return 1;
- }
- }
- if (MORE_PACKABLE_P(table)) {
- i = table->num_entries++;
- table->bins[i*2] = (struct st_table_entry*)key;
- table->bins[i*2+1] = (struct st_table_entry*)value;
- return 0;
- }
- else {
- unpack_entries(table);
- }
+ st_index_t i = find_packed_index(table, hash_val, key);
+ if (i < table->real_entries) {
+ PVAL_SET(table, i, value);
+ return 1;
+ }
+ key = (*func)(key);
+ add_packed_direct(table, key, value, hash_val);
+ return 0;
}
- hash_val = do_hash(key, table);
FIND_ENTRY(table, ptr, hash_val, bin_pos);
if (ptr == 0) {
key = (*func)(key);
- ADD_DIRECT(table, key, value, hash_val, bin_pos);
+ add_direct(table, key, value, hash_val, bin_pos);
return 0;
}
else {
@@ -512,36 +753,30 @@ st_insert2(register st_table *table, register st_data_t key, st_data_t value,
void
st_add_direct(st_table *table, st_data_t key, st_data_t value)
{
- st_index_t hash_val, bin_pos;
+ st_index_t hash_val;
+
+ hash_val = do_hash(key, table);
+ if (ULTRAPACKED(table)) {
+ add_upacked_direct(table, key, value, hash_val);
+ return;
+ }
if (table->entries_packed) {
- int i;
- if (MORE_PACKABLE_P(table)) {
- i = table->num_entries++;
- table->bins[i*2] = (struct st_table_entry*)key;
- table->bins[i*2+1] = (struct st_table_entry*)value;
- return;
- }
- else {
- unpack_entries(table);
- }
+ add_packed_direct(table, key, value, hash_val);
+ return;
}
- hash_val = do_hash(key, table);
- bin_pos = hash_val % table->num_bins;
- ADD_DIRECT(table, key, value, hash_val, bin_pos);
+ add_direct(table, key, value, hash_val, hash_val % table->num_bins);
}
static void
rehash(register st_table *table)
{
register st_table_entry *ptr, **new_bins;
- st_index_t i, new_num_bins, hash_val;
+ st_index_t new_num_bins, hash_val;
new_num_bins = new_size(table->num_bins+1);
- new_bins = (st_table_entry**)
- xrealloc(table->bins, new_num_bins * sizeof(st_table_entry*));
- for (i = 0; i < new_num_bins; ++i) new_bins[i] = 0;
+ new_bins = st_realloc_bins(table->bins, new_num_bins, table->num_bins);
table->num_bins = new_num_bins;
table->bins = new_bins;
@@ -558,34 +793,37 @@ st_table*
st_copy(st_table *old_table)
{
st_table *new_table;
- st_table_entry *ptr, *entry, *prev, **tail;
+ st_table_entry *ptr, *entry, *prev, **tailp;
st_index_t num_bins = old_table->num_bins;
st_index_t hash_val;
- new_table = alloc(st_table);
+ new_table = st_alloc_table();
if (new_table == 0) {
return 0;
}
*new_table = *old_table;
- new_table->bins = (st_table_entry**)
- Calloc((unsigned)num_bins, sizeof(st_table_entry*));
+ if (ULTRAPACKED(old_table)) {
+ return new_table;
+ }
+
+ new_table->bins = st_alloc_bins(num_bins);
if (new_table->bins == 0) {
- free(new_table);
+ st_dealloc_table(new_table);
return 0;
}
if (old_table->entries_packed) {
- memcpy(new_table->bins, old_table->bins, sizeof(struct st_table_entry *) * old_table->num_bins);
+ MEMCPY(new_table->bins, old_table->bins, st_table_entry*, old_table->num_bins);
return new_table;
}
if ((ptr = old_table->head) != 0) {
prev = 0;
- tail = &new_table->head;
+ tailp = &new_table->head;
do {
- entry = alloc(st_table_entry);
+ entry = st_alloc_entry();
if (entry == 0) {
st_free_table(new_table);
return 0;
@@ -595,8 +833,8 @@ st_copy(st_table *old_table)
entry->next = new_table->bins[hash_val];
new_table->bins[hash_val] = entry;
entry->back = prev;
- *tail = prev = entry;
- tail = &entry->fore;
+ *tailp = prev = entry;
+ tailp = &entry->fore;
} while ((ptr = ptr->fore) != 0);
new_table->tail = prev;
}
@@ -604,21 +842,22 @@ st_copy(st_table *old_table)
return new_table;
}
-#define REMOVE_ENTRY(table, ptr) do \
- { \
- if ((ptr)->fore == 0 && (ptr)->back == 0) { \
- (table)->head = 0; \
- (table)->tail = 0; \
- } \
- else { \
- st_table_entry *fore = (ptr)->fore, *back = (ptr)->back; \
- if (fore) fore->back = back; \
- if (back) back->fore = fore; \
- if ((ptr) == (table)->head) (table)->head = fore; \
- if ((ptr) == (table)->tail) (table)->tail = back; \
- } \
- (table)->num_entries--; \
- } while (0)
+static inline void
+remove_entry(st_table *table, st_table_entry *ptr)
+{
+ if (ptr->fore == 0 && ptr->back == 0) {
+ table->head = 0;
+ table->tail = 0;
+ }
+ else {
+ st_table_entry *fore = ptr->fore, *back = ptr->back;
+ if (fore) fore->back = back;
+ if (back) back->fore = fore;
+ if (ptr == table->head) table->head = fore;
+ if (ptr == table->tail) table->tail = back;
+ }
+ table->num_entries--;
+}
int
st_delete(register st_table *table, register st_data_t *key, st_data_t *value)
@@ -627,30 +866,38 @@ st_delete(register st_table *table, register st_data_t *key, st_data_t *value)
st_table_entry **prev;
register st_table_entry *ptr;
+ hash_val = do_hash(*key, table);
+
+ if (ULTRAPACKED(table)) {
+ if (check_upacked(table, hash_val, *key)) {
+ if (value != 0) *value = UPVAL(table);
+ *key = UPKEY(table);
+ remove_upacked_entry(table);
+ return 1;
+ }
+ return 0;
+ }
+
if (table->entries_packed) {
- st_index_t i;
- for (i = 0; i < table->num_entries; i++) {
- if ((st_data_t)table->bins[i*2] == *key) {
- if (value != 0) *value = (st_data_t)table->bins[i*2+1];
- table->num_entries--;
- memmove(&table->bins[i*2], &table->bins[(i+1)*2],
- sizeof(struct st_table_entry*) * 2*(table->num_entries-i));
- return 1;
- }
+ st_index_t i = find_packed_index(table, hash_val, *key);
+ if (i < table->real_entries) {
+ if (value != 0) *value = PVAL(table, i);
+ *key = PKEY(table, i);
+ remove_packed_entry(table, i);
+ return 1;
}
if (value != 0) *value = 0;
return 0;
}
- hash_val = do_hash_bin(*key, table);
-
- for (prev = &table->bins[hash_val]; (ptr = *prev) != 0; prev = &ptr->next) {
+ prev = &table->bins[hash_val % table->num_bins];
+ for (;(ptr = *prev) != 0; prev = &ptr->next) {
if (EQUAL(table, *key, ptr->key)) {
*prev = ptr->next;
- REMOVE_ENTRY(table, ptr);
+ remove_entry(table, ptr);
if (value != 0) *value = ptr->record;
*key = ptr->key;
- free(ptr);
+ st_free_entry(ptr);
return 1;
}
}
@@ -665,25 +912,36 @@ st_delete_safe(register st_table *table, register st_data_t *key, st_data_t *val
st_index_t hash_val;
register st_table_entry *ptr;
+ hash_val = do_hash(*key, table);
+
+ if (ULTRAPACKED(table)) {
+ if (check_upacked(table, hash_val, *key)) {
+ if (value != 0) *value = UPVAL(table);
+ *key = UPKEY(table);
+ remove_safe_upacked_entry(table, never);
+ return 1;
+ }
+ if (value != 0) *value = 0;
+ return 0;
+ }
+
if (table->entries_packed) {
- st_index_t i;
- for (i = 0; i < table->num_entries; i++) {
- if ((st_data_t)table->bins[i*2] == *key) {
- if (value != 0) *value = (st_data_t)table->bins[i*2+1];
- table->bins[i*2] = (void *)never;
- return 1;
- }
+ st_index_t i = find_packed_index(table, hash_val, *key);
+ if (i < table->real_entries) {
+ if (value != 0) *value = PVAL(table, i);
+ *key = PKEY(table, i);
+ remove_safe_packed_entry(table, i, never);
+ return 1;
}
if (value != 0) *value = 0;
return 0;
}
- hash_val = do_hash_bin(*key, table);
- ptr = table->bins[hash_val];
+ ptr = table->bins[hash_val % table->num_bins];
for (; ptr != 0; ptr = ptr->next) {
if ((ptr->key != never) && EQUAL(table, ptr->key, *key)) {
- REMOVE_ENTRY(table, ptr);
+ remove_entry(table, ptr);
*key = ptr->key;
if (value != 0) *value = ptr->record;
ptr->key = ptr->record = never;
@@ -701,17 +959,23 @@ st_cleanup_safe(st_table *table, st_data_t never)
st_table_entry *ptr, **last, *tmp;
st_index_t i;
+ if (ULTRAPACKED(table)) {
+ table->real_upacked = table->num_entries;
+ return;
+ }
+
if (table->entries_packed) {
st_index_t i = 0, j = 0;
- while ((st_data_t)table->bins[i*2] != never) {
- if (i++ == table->num_entries) return;
+ while (PKEY(table, i) != never) {
+ if (i++ == table->real_entries) return;
}
- for (j = i; ++i < table->num_entries;) {
- if ((st_data_t)table->bins[i*2] == never) continue;
- table->bins[j*2] = table->bins[i*2];
- table->bins[j*2+1] = table->bins[i*2+1];
+ for (j = i; ++i < table->real_entries;) {
+ if (PKEY(table, i) == never) continue;
+ PACKED_ENT(table, j) = PACKED_ENT(table, i);
j++;
}
+ table->real_entries = j;
+ /* table->num_entries really should be equal j at this moment, but let set it anyway */
table->num_entries = j;
return;
}
@@ -722,7 +986,7 @@ st_cleanup_safe(st_table *table, st_data_t never)
if (ptr->key == never) {
tmp = ptr;
*last = ptr = ptr->next;
- free(tmp);
+ st_free_entry(tmp);
}
else {
ptr = *(last = &ptr->next);
@@ -732,50 +996,78 @@ st_cleanup_safe(st_table *table, st_data_t never)
}
int
-st_foreach(st_table *table, int (*func)(ANYARGS), st_data_t arg)
+st_foreach_check(st_table *table, int (*func)(ANYARGS), st_data_t arg, st_data_t never)
{
st_table_entry *ptr, **last, *tmp;
enum st_retval retval;
- st_index_t i;
+ st_data_t key, val;
+ st_index_t hash, i = 0;
+
+ if (table->num_entries == 0) {
+ return 0;
+ }
+
+ if (ULTRAPACKED(table)) {
+ key = UPKEY(table);
+ val = UPVAL(table);
+ hash = UPHASH(table);
+ if (key == never) return 0;
+ retval = (*func)(key, val, arg);
+ if (!ULTRAPACKED(table)) {
+ goto packed;
+ }
+ switch(retval) {
+ case ST_CHECK:
+ if (UPHASH(table) == 0 && UPKEY(table) == never)
+ break;
+ if (check_upacked(table, hash, key))
+ break;
+ goto deleted;
+ case ST_DELETE:
+ remove_safe_upacked_entry(table, never);
+ case ST_CONTINUE:
+ case ST_STOP:
+ break;
+ }
+ return 0;
+ }
if (table->entries_packed) {
- for (i = 0; i < table->num_entries; i++) {
- st_index_t j;
- st_data_t key, val;
- key = (st_data_t)table->bins[i*2];
- val = (st_data_t)table->bins[i*2+1];
- retval = (*func)(key, val, arg);
+ for (i = 0; i < table->real_entries; i++) {
+ key = PKEY(table, i);
+ val = PVAL(table, i);
+ hash = PHASH(table, i);
+ if (key == never) continue;
+ retval = (*func)(key, val, arg);
+ packed:
if (!table->entries_packed) {
- FIND_ENTRY(table, ptr, key, i);
+ FIND_ENTRY(table, ptr, hash, i);
if (retval == ST_CHECK) {
if (!ptr) goto deleted;
goto unpacked_continue;
}
goto unpacked;
}
- switch (retval) {
+ switch (retval) {
case ST_CHECK: /* check if hash is modified during iteration */
- for (j = 0; j < table->num_entries; j++) {
- if ((st_data_t)table->bins[j*2] == key)
- break;
- }
- if (j == table->num_entries) {
+ if (PHASH(table, i) == 0 && PKEY(table, i) == never) {
+ break;
+ }
+ i = find_packed_index(table, hash, key);
+ if (i == table->real_entries) {
goto deleted;
- }
+ }
/* fall through */
case ST_CONTINUE:
break;
case ST_STOP:
return 0;
case ST_DELETE:
- table->num_entries--;
- memmove(&table->bins[i*2], &table->bins[(i+1)*2],
- sizeof(struct st_table_entry*) * 2*(table->num_entries-i));
- i--;
- break;
- }
- }
- return 0;
+ remove_safe_packed_entry(table, i, never);
+ break;
+ }
+ }
+ return 0;
}
else {
ptr = table->head;
@@ -783,6 +1075,8 @@ st_foreach(st_table *table, int (*func)(ANYARGS), st_data_t arg)
if (ptr != 0) {
do {
+ if (ptr->key == never)
+ goto unpacked_continue;
i = ptr->hash % table->num_bins;
retval = (*func)(ptr->key, ptr->record, arg);
unpacked:
@@ -808,10 +1102,100 @@ st_foreach(st_table *table, int (*func)(ANYARGS), st_data_t arg)
for (; (tmp = *last) != 0; last = &tmp->next) {
if (ptr == tmp) {
tmp = ptr->fore;
+ remove_entry(table, ptr);
+ ptr->key = ptr->record = never;
+ ptr->hash = 0;
+ ptr = tmp;
+ break;
+ }
+ }
+ }
+ } while (ptr && table->head);
+ }
+ return 0;
+}
+
+int
+st_foreach(st_table *table, int (*func)(ANYARGS), st_data_t arg)
+{
+ st_table_entry *ptr, **last, *tmp;
+ enum st_retval retval;
+ st_data_t key, val;
+ st_index_t hash, i = 0;
+
+ if (table->num_entries == 0) {
+ return 0;
+ }
+
+ if (ULTRAPACKED(table)) {
+ key = UPKEY(table);
+ val = UPVAL(table);
+ hash = UPHASH(table);
+ retval = (*func)(key, val, arg);
+ if (!ULTRAPACKED(table)) {
+ goto packed;
+ }
+ switch (retval) {
+ case ST_DELETE:
+ remove_upacked_entry(table);
+ case ST_CONTINUE:
+ case ST_CHECK:
+ case ST_STOP:
+ break;
+ }
+ return 0;
+ }
+
+ if (table->entries_packed) {
+ for (i = 0; i < table->real_entries; i++) {
+ key = PKEY(table, i);
+ val = PVAL(table, i);
+ hash = PHASH(table, i);
+ retval = (*func)(key, val, arg);
+ packed:
+ if (!table->entries_packed) {
+ FIND_ENTRY(table, ptr, hash, i);
+ if (!ptr) return 0;
+ goto unpacked;
+ }
+ switch (retval) {
+ case ST_CONTINUE:
+ break;
+ case ST_CHECK:
+ case ST_STOP:
+ return 0;
+ case ST_DELETE:
+ remove_packed_entry(table, i);
+ i--;
+ break;
+ }
+ }
+ return 0;
+ }
+ else {
+ ptr = table->head;
+ }
+
+ if (ptr != 0) {
+ do {
+ i = ptr->hash % table->num_bins;
+ retval = (*func)(ptr->key, ptr->record, arg);
+ unpacked:
+ switch (retval) {
+ case ST_CONTINUE:
+ ptr = ptr->fore;
+ break;
+ case ST_CHECK:
+ case ST_STOP:
+ return 0;
+ case ST_DELETE:
+ last = &table->bins[ptr->hash % table->num_bins];
+ for (; (tmp = *last) != 0; last = &tmp->next) {
+ if (ptr == tmp) {
+ tmp = ptr->fore;
*last = ptr->next;
- REMOVE_ENTRY(table, ptr);
- free(ptr);
- if (ptr == tmp) return 0;
+ remove_entry(table, ptr);
+ st_free_entry(ptr);
ptr = tmp;
break;
}
@@ -834,13 +1218,13 @@ st_reverse_foreach(st_table *table, int (*func)(ANYARGS), st_data_t arg)
for (i = table->num_entries-1; 0 <= i; i--) {
int j;
st_data_t key, val;
- key = (st_data_t)table->bins[i*2];
- val = (st_data_t)table->bins[i*2+1];
+ key = PKEY(table, i);
+ val = PVAL(table, i);
retval = (*func)(key, val, arg);
switch (retval) {
case ST_CHECK: /* check if hash is modified during iteration */
for (j = 0; j < table->num_entries; j++) {
- if ((st_data_t)table->bins[j*2] == key)
+ if (PKEY(table, j) == key)
break;
}
if (j == table->num_entries) {
@@ -854,9 +1238,7 @@ st_reverse_foreach(st_table *table, int (*func)(ANYARGS), st_data_t arg)
case ST_STOP:
return 0;
case ST_DELETE:
- table->num_entries--;
- memmove(&table->bins[i*2], &table->bins[(i+1)*2],
- sizeof(struct st_table_entry*) * 2*(table->num_entries-i));
+ remove_packed_entry(table, i);
break;
}
}
@@ -889,8 +1271,8 @@ st_reverse_foreach(st_table *table, int (*func)(ANYARGS), st_data_t arg)
if (ptr == tmp) {
tmp = ptr->back;
*last = ptr->next;
- REMOVE_ENTRY(table, ptr);
- free(ptr);
+ remove_entry(table, ptr);
+ st_free_entry(ptr);
ptr = tmp;
break;
}
diff --git a/variable.c b/variable.c
index 3da500e..303bb27 100644
--- a/variable.c
+++ b/variable.c
@@ -473,7 +473,7 @@ void
rb_gc_mark_global_tbl(void)
{
if (rb_global_tbl)
- st_foreach_safe(rb_global_tbl, mark_global_entry, 0);
+ st_foreach(rb_global_tbl, mark_global_entry, 0);
}
static ID
@@ -765,7 +765,7 @@ rb_f_global_variables(void)
char buf[2];
int i;
- st_foreach_safe(rb_global_tbl, gvar_i, ary);
+ st_foreach(rb_global_tbl, gvar_i, ary);
buf[0] = '$';
for (i = 1; i <= 9; ++i) {
buf[1] = (char)(i + '0');
@@ -923,7 +923,7 @@ static int
givar_i(VALUE obj, st_table *tbl)
{
if (rb_special_const_p(obj)) {
- st_foreach_safe(tbl, givar_mark_i, 0);
+ st_foreach(tbl, givar_mark_i, 0);
}
return ST_CONTINUE;
}
@@ -933,7 +933,7 @@ rb_mark_generic_ivar_tbl(void)
{
if (!generic_iv_tbl) return;
if (special_generic_ivar == 0) return;
- st_foreach_safe(generic_iv_tbl, givar_i, 0);
+ st_foreach(generic_iv_tbl, givar_i, 0);
}
void
@@ -1170,7 +1170,7 @@ obj_ivar_each(VALUE obj, int (*func)(ANYARGS), st_data_t arg)
data.func = (int (*)(ID key, VALUE val, st_data_t arg))func;
data.arg = arg;
- st_foreach_safe(tbl, obj_ivar_i, (st_data_t)&data);
+ st_foreach(tbl, obj_ivar_i, (st_data_t)&data);
}
void
@@ -1730,7 +1730,7 @@ rb_mod_const_at(VALUE mod, void *data)
tbl = st_init_numtable();
}
if (RCLASS_CONST_TBL(mod)) {
- st_foreach_safe(RCLASS_CONST_TBL(mod), sv_i, (st_data_t)tbl);
+ st_foreach(RCLASS_CONST_TBL(mod), sv_i, (st_data_t)tbl);
}
return tbl;
}
@@ -1765,7 +1765,7 @@ rb_const_list(void *data)
if (!tbl) return rb_ary_new2(0);
ary = rb_ary_new2(tbl->num_entries);
- st_foreach_safe(tbl, list_i, ary);
+ st_foreach(tbl, list_i, ary);
st_free_table(tbl);
return ary;
diff --git a/vm.c b/vm.c
index e997afa..064a4f8 100644
--- a/vm.c
+++ b/vm.c
@@ -1575,6 +1575,7 @@ rb_vm_mark(void *ptr)
RUBY_MARK_UNLESS_NULL(vm->thgroup_default);
RUBY_MARK_UNLESS_NULL(vm->mark_object_ary);
RUBY_MARK_UNLESS_NULL(vm->load_path);
+ RUBY_MARK_UNLESS_NULL(vm->load_path_expanded_cache);
RUBY_MARK_UNLESS_NULL(vm->loaded_features);
RUBY_MARK_UNLESS_NULL(vm->top_self);
RUBY_MARK_UNLESS_NULL(vm->coverages);
@@ -1606,16 +1607,17 @@ ruby_vm_destruct(rb_vm_t *vm)
#if defined(ENABLE_VM_OBJSPACE) && ENABLE_VM_OBJSPACE
struct rb_objspace *objspace = vm->objspace;
#endif
+ if (vm->living_threads) {
+ st_table *living_threads = vm->living_threads;
+ vm->living_threads = 0;
+ st_free_table(living_threads);
+ }
rb_gc_force_recycle(vm->self);
vm->main_thread = 0;
if (th) {
rb_fiber_reset_root_local_storage(th->self);
thread_free(th);
}
- if (vm->living_threads) {
- st_free_table(vm->living_threads);
- vm->living_threads = 0;
- }
#if defined(ENABLE_VM_OBJSPACE) && ENABLE_VM_OBJSPACE
if (objspace) {
rb_objspace_free(objspace);
diff --git a/vm_core.h b/vm_core.h
index 7211005..e787d4b 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -298,6 +298,7 @@ typedef struct rb_vm_struct {
/* load */
VALUE top_self;
VALUE load_path;
+ VALUE load_path_expanded_cache;
VALUE loaded_features;
struct st_table *loading_table;
@nickbuff
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nickbuff commented May 4, 2012

Ты меня пугаешь. Серьёзно.

@funny-falcon
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Author

Чего так? Это четыре разных патча, слитых в один, так что ничего особо страшного.

@mpapis
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mpapis commented May 4, 2012

/Cc me

@cr0t
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cr0t commented May 4, 2012

Патчи вызывают стойкое чувство уважения!

funny-falcon, а какой у тебя бэкграунд? мне просто интересно стало, что ты хорошо в C шаришь.

@funny-falcon
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Author

@cr0t, я не могу сказать, что я отлично шарю в С. Сложные вещи, типа многопоточного программирования, я не знаю. Просто понимаю работу с указателями и структурами + упорство в исправлении ошибок.

@johnl
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johnl commented Jul 3, 2012

I've built some Ubuntu packages using this patch and a couple of people have reported problems with their ruby process stuck at 100% cpu when using them (though I've never caught it doing this myself yet).

I rebuilt the exact packages but without the patch and the 100% cpu problem goes away for them.

There is some debug info here: https://gist.github.com/a80ffa3126c5b1b01d27

anyone got any thoughts?

@funny-falcon
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Author

@johnl, it seems to be known problem :( .

wait... f..ck, it seems that I've made a big mistake at one place... I'll try to fix a patch in a hour. Could you test it then?

@johnl
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johnl commented Jul 3, 2012

@funny-falcon: sure, I'll build new packages straight away and we can get them tested (it tends to take a little time to occur though, so won't be able to confirm straight away). Thanks!

@funny-falcon
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@johnl , thank you for insightful backtrace . I hope I've catch an error.

@johnl
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johnl commented Jul 3, 2012

ah, sorry, I got no notification email about the new fork (#4427a19c53). I'm arranging builds now.

@johnl
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johnl commented Jul 3, 2012

Packages built for Ubuntu Lucid through to Quantal: https://code.launchpad.net/~brightbox/+recipe/deb-ruby1.9.1

ppa here: https://code.launchpad.net/~brightbox/+archive/ruby-ng-experimental

The original affected users will be testing them out asap. Will feed back here once I've heard from them.

@johnl
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johnl commented Jul 12, 2012

Ok, these have been in heavy use for a few days now - clear confirmation that this problem is now fixed! Thanks Sokolov!

@funny-falcon
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Thank you, John

@timtyrrell
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@mpapis will "rvm get head && rvm reinstall 1.9.3-p194 --patch falcon" pull in the new patch now?

@mpapis
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mpapis commented Jul 29, 2012

@timtyrrell yes it should

@timtyrrell
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@mpapis awesome, thanks so much

@funny-falcon
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new version is here

@fgrehm
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fgrehm commented Oct 12, 2012

@funny-falcon just to let u know, it seems that the patch applies to the just released p286, I've just had issues to use the debugger gem but it seems to be unrelated to the patch

@davidcelis
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Unfortunately isn't able to apply to today's release of p327.

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