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zend_alloc.h
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/* +----------------------------------------------------------------------+ | Zend Engine | +----------------------------------------------------------------------+ | Copyright (c) 1998-2016 Zend Technologies Ltd. (http://www.zend.com) | +----------------------------------------------------------------------+ | This source file is subject to version 2.00 of the Zend license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | http://www.zend.com/license/2_00.txt. | | If you did not receive a copy of the Zend license and are unable to | | obtain it through the world-wide-web, please send a note to | | license@zend.com so we can mail you a copy immediately. | +----------------------------------------------------------------------+ | Authors: Andi Gutmans <andi@zend.com> | | Zeev Suraski <zeev@zend.com> | +----------------------------------------------------------------------+ */ /* $Id$ */ #ifndef ZEND_ALLOC_H #define ZEND_ALLOC_H #include <stdio.h> #include "../TSRM/TSRM.h" #include "zend.h" #ifndef ZEND_MM_ALIGNMENT # define ZEND_MM_ALIGNMENT 8 # define ZEND_MM_ALIGNMENT_LOG2 3 #elif ZEND_MM_ALIGNMENT < 4 # undef ZEND_MM_ALIGNMENT # undef ZEND_MM_ALIGNMENT_LOG2 # define ZEND_MM_ALIGNMENT 4 # define ZEND_MM_ALIGNMENT_LOG2 2 #endif #define ZEND_MM_ALIGNMENT_MASK ~(ZEND_MM_ALIGNMENT-1) #define ZEND_MM_ALIGNED_SIZE(size) (((size) + ZEND_MM_ALIGNMENT - 1) & ZEND_MM_ALIGNMENT_MASK) typedef struct _zend_leak_info { void *addr; size_t size; const char *filename; uint lineno; const char *orig_filename; uint orig_lineno; } zend_leak_info; BEGIN_EXTERN_C() ZEND_API char *zend_strndup(const char *s, unsigned int length) ZEND_ATTRIBUTE_MALLOC; ZEND_API void *_emalloc(size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE(1); ZEND_API void *_safe_emalloc(size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; ZEND_API void *_safe_emalloc_string(size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; ZEND_API void *_safe_malloc(size_t nmemb, size_t size, size_t offset) ZEND_ATTRIBUTE_MALLOC; ZEND_API void _efree(void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); ZEND_API void *_ecalloc(size_t nmemb, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE2(1,2); ZEND_API void *_erealloc(void *ptr, size_t size, int allow_failure ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_ALLOC_SIZE(2); ZEND_API void *_safe_erealloc(void *ptr, size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); ZEND_API void *_safe_realloc(void *ptr, size_t nmemb, size_t size, size_t offset); ZEND_API char *_estrdup(const char *s ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; ZEND_API char *_estrndup(const char *s, unsigned int length ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; ZEND_API size_t _zend_mem_block_size(void *ptr TSRMLS_DC ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); /* Standard wrapper macros */ #define emalloc(size) _emalloc((size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define safe_emalloc(nmemb, size, offset) _safe_emalloc((nmemb), (size), (offset) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define safe_emalloc_string(nmemb, size, offset) _safe_emalloc_string((nmemb), (size), (offset) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define efree(ptr) _efree((ptr) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define ecalloc(nmemb, size) _ecalloc((nmemb), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define erealloc(ptr, size) _erealloc((ptr), (size), 0 ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define safe_erealloc(ptr, nmemb, size, offset) _safe_erealloc((ptr), (nmemb), (size), (offset) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define erealloc_recoverable(ptr, size) _erealloc((ptr), (size), 1 ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define estrdup(s) _estrdup((s) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define estrndup(s, length) _estrndup((s), (length) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define zend_mem_block_size(ptr) _zend_mem_block_size((ptr) TSRMLS_CC ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) /* Relay wrapper macros */ #define emalloc_rel(size) _emalloc((size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define safe_emalloc_rel(nmemb, size, offset) _safe_emalloc((nmemb), (size), (offset) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define efree_rel(ptr) _efree((ptr) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define ecalloc_rel(nmemb, size) _ecalloc((nmemb), (size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define erealloc_rel(ptr, size) _erealloc((ptr), (size), 0 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define erealloc_recoverable_rel(ptr, size) _erealloc((ptr), (size), 1 ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define safe_erealloc_rel(ptr, nmemb, size, offset) _safe_erealloc((ptr), (nmemb), (size), (offset) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define estrdup_rel(s) _estrdup((s) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define estrndup_rel(s, length) _estrndup((s), (length) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define zend_mem_block_size_rel(ptr) _zend_mem_block_size((ptr) TSRMLS_CC ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) inline static void * __zend_malloc(size_t len) { void *tmp = malloc(len); if (tmp) { return tmp; } fprintf(stderr, "Out of memory\n"); exit(1); } inline static void * __zend_calloc(size_t nmemb, size_t len) { void *tmp = _safe_malloc(nmemb, len, 0); memset(tmp, 0, nmemb * len); return tmp; } inline static void * __zend_realloc(void *p, size_t len) { p = realloc(p, len); if (p) { return p; } fprintf(stderr, "Out of memory\n"); exit(1); } /* Selective persistent/non persistent allocation macros */ #define pemalloc(size, persistent) ((persistent)?__zend_malloc(size):emalloc(size)) #define safe_pemalloc(nmemb, size, offset, persistent) ((persistent)?_safe_malloc(nmemb, size, offset):safe_emalloc(nmemb, size, offset)) #define pefree(ptr, persistent) ((persistent)?free(ptr):efree(ptr)) #define pecalloc(nmemb, size, persistent) ((persistent)?__zend_calloc((nmemb), (size)):ecalloc((nmemb), (size))) #define perealloc(ptr, size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc((ptr), (size))) #define safe_perealloc(ptr, nmemb, size, offset, persistent) ((persistent)?_safe_realloc((ptr), (nmemb), (size), (offset)):safe_erealloc((ptr), (nmemb), (size), (offset))) #define perealloc_recoverable(ptr, size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc_recoverable((ptr), (size))) #define pestrdup(s, persistent) ((persistent)?strdup(s):estrdup(s)) #define pestrndup(s, length, persistent) ((persistent)?zend_strndup((s),(length)):estrndup((s),(length))) #define pemalloc_rel(size, persistent) ((persistent)?__zend_malloc(size):emalloc_rel(size)) #define pefree_rel(ptr, persistent) ((persistent)?free(ptr):efree_rel(ptr)) #define pecalloc_rel(nmemb, size, persistent) ((persistent)?__zend_calloc((nmemb), (size)):ecalloc_rel((nmemb), (size))) #define perealloc_rel(ptr, size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc_rel((ptr), (size))) #define perealloc_recoverable_rel(ptr, size, persistent) ((persistent)?__zend_realloc((ptr), (size)):erealloc_recoverable_rel((ptr), (size))) #define pestrdup_rel(s, persistent) ((persistent)?strdup(s):estrdup_rel(s)) #define safe_estrdup(ptr) ((ptr)?(estrdup(ptr)):STR_EMPTY_ALLOC()) #define safe_estrndup(ptr, len) ((ptr)?(estrndup((ptr), (len))):STR_EMPTY_ALLOC()) ZEND_API int zend_set_memory_limit(size_t memory_limit); ZEND_API void start_memory_manager(TSRMLS_D); ZEND_API void shutdown_memory_manager(int silent, int full_shutdown TSRMLS_DC); ZEND_API int is_zend_mm(TSRMLS_D); #if ZEND_DEBUG ZEND_API int _mem_block_check(void *ptr, int silent ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); ZEND_API void _full_mem_check(int silent ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); void zend_debug_alloc_output(char *format, ...); #define mem_block_check(ptr, silent) _mem_block_check(ptr, silent ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define full_mem_check(silent) _full_mem_check(silent ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #else #define mem_block_check(type, ptr, silent) #define full_mem_check(silent) #endif ZEND_API size_t zend_memory_usage(int real_usage TSRMLS_DC); ZEND_API size_t zend_memory_peak_usage(int real_usage TSRMLS_DC); END_EXTERN_C() /* fast cache for zval's */ #define ALLOC_ZVAL(z) \ (z) = (zval *) emalloc(sizeof(zval)) #define FREE_ZVAL(z) \ efree_rel(z) #define ALLOC_ZVAL_REL(z) \ (z) = (zval *) emalloc_rel(sizeof(zval)) #define FREE_ZVAL_REL(z) \ efree_rel(z) /* fast cache for HashTables */ #define ALLOC_HASHTABLE(ht) \ (ht) = (HashTable *) emalloc(sizeof(HashTable)) #define FREE_HASHTABLE(ht) \ efree(ht) #define ALLOC_HASHTABLE_REL(ht) \ (ht) = (HashTable *) emalloc_rel(sizeof(HashTable)) #define FREE_HASHTABLE_REL(ht) \ efree_rel(ht) /* Heap functions */ typedef struct _zend_mm_heap zend_mm_heap; ZEND_API zend_mm_heap *zend_mm_startup(void); ZEND_API void zend_mm_shutdown(zend_mm_heap *heap, int full_shutdown, int silent TSRMLS_DC); ZEND_API void *_zend_mm_alloc(zend_mm_heap *heap, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; ZEND_API void _zend_mm_free(zend_mm_heap *heap, void *p ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); ZEND_API void *_zend_mm_realloc(zend_mm_heap *heap, void *p, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); ZEND_API size_t _zend_mm_block_size(zend_mm_heap *heap, void *p ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); #define zend_mm_alloc(heap, size) _zend_mm_alloc((heap), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define zend_mm_free(heap, p) _zend_mm_free((heap), (p) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define zend_mm_realloc(heap, p, size) _zend_mm_realloc((heap), (p), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define zend_mm_block_size(heap, p) _zend_mm_block_size((heap), (p) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) #define zend_mm_alloc_rel(heap, size) _zend_mm_alloc((heap), (size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define zend_mm_free_rel(heap, p) _zend_mm_free((heap), (p) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define zend_mm_realloc_rel(heap, p, size) _zend_mm_realloc((heap), (p), (size) ZEND_FILE_LINE_RELAY_CC ZEND_FILE_LINE_CC) #define zend_mm_block_size_rel(heap, p) _zend_mm_block_size((heap), (p) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC) /* Heaps with user defined storage */ typedef struct _zend_mm_storage zend_mm_storage; typedef struct _zend_mm_segment { size_t size; struct _zend_mm_segment *next_segment; } zend_mm_segment; typedef struct _zend_mm_mem_handlers { const char *name; zend_mm_storage* (*init)(void *params); void (*dtor)(zend_mm_storage *storage); void (*compact)(zend_mm_storage *storage); zend_mm_segment* (*_alloc)(zend_mm_storage *storage, size_t size); zend_mm_segment* (*_realloc)(zend_mm_storage *storage, zend_mm_segment *ptr, size_t size); void (*_free)(zend_mm_storage *storage, zend_mm_segment *ptr); } zend_mm_mem_handlers; struct _zend_mm_storage { const zend_mm_mem_handlers *handlers; void *data; }; ZEND_API zend_mm_heap *zend_mm_startup_ex(const zend_mm_mem_handlers *handlers, size_t block_size, size_t reserve_size, int internal, void *params); ZEND_API zend_mm_heap *zend_mm_set_heap(zend_mm_heap *new_heap TSRMLS_DC); ZEND_API zend_mm_storage *zend_mm_get_storage(zend_mm_heap *heap); ZEND_API void zend_mm_set_custom_handlers(zend_mm_heap *heap, void* (*_malloc)(size_t), void (*_free)(void*), void* (*_realloc)(void*, size_t)); #endif /* * Local variables: * tab-width: 4 * c-basic-offset: 4 * indent-tabs-mode: t * End: */
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