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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2004 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_globals_macros.h"

#include "zend_mm.h"

#define MEM_BLOCK_START_MAGIC 0x7312F8DCL
#define MEM_BLOCK_END_MAGIC 0x2A8FCC84L
#define MEM_BLOCK_FREED_MAGIC 0x99954317L
#define MEM_BLOCK_CACHED_MAGIC 0xFB8277DCL

typedef struct _zend_mem_header {
#if ZEND_DEBUG
long magic;
char *filename;
uint lineno;
int reported;
char *orig_filename;
uint orig_lineno;
# ifdef ZTS
THREAD_T thread_id;
# endif
#endif
#if ZEND_DEBUG || !defined(ZEND_MM)
    struct _zend_mem_header *pNext;
    struct _zend_mem_header *pLast;
#endif
unsigned int size;
} zend_mem_header;

typedef union _align_test {
void *ptr;
double dbl;
long lng;
} align_test;

#define MAX_CACHED_MEMORY 11
#define MAX_CACHED_ENTRIES 256
#define PRE_INIT_CACHE_ENTRIES 32

#if ZEND_GCC_VERSION >= 2000
# define PLATFORM_ALIGNMENT (__alignof__ (align_test))
#else
# define PLATFORM_ALIGNMENT (sizeof(align_test))
#endif

#define MEM_HEADER_PADDING (((PLATFORM_ALIGNMENT-sizeof(zend_mem_header))%PLATFORM_ALIGNMENT+PLATFORM_ALIGNMENT)%PLATFORM_ALIGNMENT)


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_API void *_safe_emalloc(size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
ZEND_API void *_safe_malloc(size_t nmemb, size_t size, size_t offset) ZEND_ATTRIBUTE_MALLOC;
ZEND_API void _efree(void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
ZEND_API void *_ecalloc(size_t nmemb, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC;
ZEND_API void *_erealloc(void *ptr, size_t size, int allow_failure ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC);
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;

#if USE_ZEND_ALLOC

/* Standard wrapper macros */
#define emalloc(size) _emalloc((size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define safe_emalloc(nmemb, size, offset) _safe_emalloc((nmemb), (size), (offset) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define efree(ptr) _efree((ptr) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define ecalloc(nmemb, size) _ecalloc((nmemb), (size) ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define erealloc(ptr, size) _erealloc((ptr), (size), 0 ZEND_FILE_LINE_CC ZEND_FILE_LINE_EMPTY_CC)
#define 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)

/* 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 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)

/* Selective persistent/non persistent allocation macros */
#define pemalloc(size, persistent) ((persistent)?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)?calloc((nmemb), (size)):ecalloc((nmemb), (size)))
#define perealloc(ptr, size, persistent) ((persistent)?realloc((ptr), (size)):erealloc((ptr), (size)))
#define perealloc_recoverable(ptr, size, persistent) ((persistent)?realloc((ptr), (size)):erealloc_recoverable((ptr), (size)))
#define pestrdup(s, persistent) ((persistent)?strdup(s):estrdup(s))

#define pemalloc_rel(size, persistent) ((persistent)?malloc(size):emalloc_rel(size))
#define pefree_rel(ptr, persistent) ((persistent)?free(ptr):efree_rel(ptr))
#define pecalloc_rel(nmemb, size, persistent) ((persistent)?calloc((nmemb), (size)):ecalloc_rel((nmemb), (size)))
#define perealloc_rel(ptr, size, persistent) ((persistent)?realloc((ptr), (size)):erealloc_rel((ptr), (size)))
#define perealloc_recoverable_rel(ptr, size, persistent) ((persistent)?realloc((ptr), (size)):erealloc_recoverable_rel((ptr), (size)))
#define pestrdup_rel(s, persistent) ((persistent)?strdup(s):estrdup_rel(s))

#else

#define _GNU_SOURCE
#include <string.h>
#undef _GNU_SOURCE

/* Standard wrapper macros */
#define emalloc(size) malloc(size)
#define safe_emalloc(nmemb, size, offset) malloc((nmemb) * (size) + (offset))
#define efree(ptr) free(ptr)
#define ecalloc(nmemb, size) calloc((nmemb), (size))
#define erealloc(ptr, size) realloc((ptr), (size))
#define erealloc_recoverable(ptr, size) realloc((ptr), (size))
#define estrdup(s) strdup(s)
#define estrndup(s, length) zend_strndup((s), (length))

/* Relay wrapper macros */
#define emalloc_rel(size) malloc(size)
#define safe_emalloc_rel(nmemb, size, offset) malloc((nmemb) * (size) + (offset))
#define efree_rel(ptr) free(ptr)
#define ecalloc_rel(nmemb, size) calloc((nmemb), (size))
#define erealloc_rel(ptr, size) realloc((ptr), (size))
#define erealloc_recoverable_rel(ptr, size) realloc((ptr), (size))
#define estrdup_rel(s) strdup(s)
#define estrndup_rel(s, length) zend_strndup((s), (length))

/* Selective persistent/non persistent allocation macros */
#define pemalloc(size, persistent) malloc(size)
#define safe_pemalloc(nmemb, size, offset, persistent) malloc((nmemb) * (size) + (offset))
#define pefree(ptr, persistent) free(ptr)
#define pecalloc(nmemb, size, persistent) calloc((nmemb), (size))
#define perealloc(ptr, size, persistent) realloc((ptr), (size))
#define perealloc_recoverable(ptr, size, persistent) realloc((ptr), (size))
#define pestrdup(s, persistent) strdup(s)

#define pemalloc_rel(size, persistent) malloc(size)
#define pefree_rel(ptr, persistent) free(ptr)
#define pecalloc_rel(nmemb, size, persistent) calloc((nmemb), (size))
#define perealloc_rel(ptr, size, persistent) realloc((ptr), (size))
#define perealloc_recoverable_rel(ptr, size, persistent) realloc((ptr), (size))
#define pestrdup_rel(s, persistent) strdup(s)

#endif /* !USE_ZEND_ALLOC */

#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(unsigned int memory_limit);

ZEND_API void start_memory_manager(TSRMLS_D);
ZEND_API void shutdown_memory_manager(int silent, int full_shutdown TSRMLS_DC);

#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

END_EXTERN_C()

#endif

/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
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