patch for Windows PHP to analyze memory allocation

zend_alloc.patch

--- zend_alloc.c.org	Wed Oct 17 18:21:42 2012
+++ zend_alloc.c	Sun Nov 04 22:56:22 2012
@@ -263,17 +263,29 @@
 
 static zend_mm_segment* zend_mm_mem_win32_alloc(zend_mm_storage *storage, size_t size)
 {
-	return (zend_mm_segment*) HeapAlloc((HANDLE)storage->data, HEAP_NO_SERIALIZE, size);
+	zend_mm_segment* segment;
+
+	segment = (zend_mm_segment*) HeapAlloc((HANDLE)storage->data, HEAP_NO_SERIALIZE, size);
+	fprintf(stderr, "[alloc]        segment: 0x%lp-0x%lp size: %ld (%dMB)\n",
+		segment, ((char*) segment) + size - 1, size, size / 1024 / 1024);
+	return segment;
 }
 
 static void zend_mm_mem_win32_free(zend_mm_storage *storage, zend_mm_segment* segment)
 {
+	fprintf(stderr, "[free]         segment: 0x%lp\n", segment);
 	HeapFree((HANDLE)storage->data, HEAP_NO_SERIALIZE, segment);
 }
 
 static zend_mm_segment* zend_mm_mem_win32_realloc(zend_mm_storage *storage, zend_mm_segment* segment, size_t size)
 {
-	return (zend_mm_segment*) HeapReAlloc((HANDLE)storage->data, HEAP_NO_SERIALIZE, segment, size);
+	zend_mm_segment* new_segment;
+
+	fprintf(stderr, "[realloc from] segment: 0x%lp\n", segment);
+	new_segment = (zend_mm_segment*) HeapReAlloc((HANDLE)storage->data, HEAP_NO_SERIALIZE, segment, size);
+	fprintf(stderr, "[realloc to]   segment: 0x%lp-0x%lp size: %ld (%dMB)\n",
+		new_segment, ((char*) new_segment) + size - 1, size, size / 1024 / 1024);
+	return new_segment;
 }
 
 # define ZEND_MM_MEM_WIN32_DSC {"win32", zend_mm_mem_win32_init, zend_mm_mem_win32_dtor, zend_mm_mem_win32_compact, zend_mm_mem_win32_alloc, zend_mm_mem_win32_realloc, zend_mm_mem_win32_free}