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|
/*
+----------------------------------------------------------------------+
| PHP HTML Embedded Scripting Language Version 3.0 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2000 PHP Development Team (See Credits file) |
+----------------------------------------------------------------------+
| This program is free software; you can redistribute it and/or modify |
| it under the terms of one of the following licenses: |
| |
| A) the GNU General Public License as published by the Free Software |
| Foundation; either version 2 of the License, or (at your option) |
| any later version. |
| |
| B) the PHP License as published by the PHP Development Team and |
| included in the distribution in the file: LICENSE |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of both licenses referred to here. |
| If you did not, or have any questions about PHP licensing, please |
| contact core@php.net. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@vipe.technion.ac.il> |
| Zeev Suraski <zeev@zend.com> |
| Rasmus Lerdorf <rasmus@lerdorf.on.ca> |
+----------------------------------------------------------------------+
*/
/* $Id: alloc.c,v 1.9 2000/02/07 23:54:50 zeev Exp $ */
#include "token_cache.h"
#if WIN32|WINNT
#include <stdlib.h>
#include <malloc.h>
#include <string.h>
#endif
mem_header *head;
#if DEBUG
void *_emalloc(size_t size, char *filename, uint lineno)
#else
void *_emalloc(size_t size)
#endif
{
mem_header *p;
p = (mem_header *) malloc(sizeof(mem_header) + size + PLATFORM_PADDING);
if (!p) {
return (void *)p;
}
p->pNext = GLOBAL(head);
if (GLOBAL(head)) {
GLOBAL(head)->pLast = p;
}
p->pLast = (mem_header *) NULL;
GLOBAL(head) = p;
#if DEBUG
p->filename = strdup(filename);
p->lineno = lineno;
p->size = size;
#endif
return (void *)((char *)p + sizeof(mem_header) + PLATFORM_PADDING);
}
#if DEBUG
void _efree(void *ptr, char *filename, uint lineno)
#else
void _efree(void *ptr)
#endif
{
mem_header *p = (mem_header *) ((char *)ptr - sizeof(mem_header) - PLATFORM_PADDING);
if (p == GLOBAL(head)) {
GLOBAL(head) = p->pNext;
} else {
p->pLast->pNext = p->pNext;
}
if (p->pNext) {
p->pNext->pLast = p->pLast;
}
#if DEBUG
free(p->filename);
#endif
free(p);
}
#if DEBUG
void *_ecalloc(size_t nmemb, size_t size, char *filename, uint lineno)
#else
void *_ecalloc(size_t nmemb, size_t size)
#endif
{
mem_header *p;
int final_size;
final_size = sizeof(mem_header) + PLATFORM_PADDING + (nmemb * size);
p = (mem_header *) malloc(final_size);
if (!p) {
return (void *) p;
}
memset(p,(int)NULL,final_size);
p->pNext = GLOBAL(head);
if (GLOBAL(head)) {
GLOBAL(head)->pLast = p;
}
p->pLast = (mem_header *) NULL;
GLOBAL(head) = p;
#if DEBUG
p->filename = strdup(filename);
p->lineno = lineno;
p->size = size;
#endif
return (void *)((char *)p + sizeof(mem_header) + PLATFORM_PADDING);
}
#if DEBUG
void *_erealloc(void *ptr, size_t size, char *filename, uint lineno)
#else
void *_erealloc(void *ptr, size_t size)
#endif
{
mem_header *p = (mem_header *) ((char *)ptr-sizeof(mem_header)-PLATFORM_PADDING);
p = (mem_header *) realloc(p,sizeof(mem_header)+size+PLATFORM_PADDING);
if (!p) {
return (void *)p;
}
if (p->pLast) {
p->pLast->pNext = p;
} else {
GLOBAL(head) = p;
}
if (p->pNext) {
p->pNext->pLast = p;
}
#if DEBUG
free(p->filename);
p->filename = strdup(filename);
p->lineno = lineno;
p->size = size;
#endif
return (void *)((char *)p+sizeof(mem_header)+PLATFORM_PADDING);
}
#if DEBUG
char *_estrdup(const char *s, char *filename, uint lineno)
#else
char *_estrdup(const char *s)
#endif
{
int length;
char *p;
length = strlen(s)+1;
#if DEBUG
p = (char *) _emalloc(length,filename,lineno);
#else
p = (char *) emalloc(length);
#endif
if (!p) {
return p;
}
memcpy(p,s,length);
return p;
}
#if DEBUG
char *_estrndup(const char *s, uint length, char *filename, uint lineno)
#else
char *_estrndup(const char *s, uint length)
#endif
{
char *p;
#if DEBUG
p = (char *) _emalloc(length+1,filename,lineno);
#else
p = (char *) emalloc(length+1);
#endif
if (!p) {
return p;
}
memcpy(p,s,length);
p[length]=0;
return p;
}
char *strndup(const char *s, uint length)
{
char *p;
p = (char *) malloc(length+1);
if (!p) {
return p;
}
memcpy(p,s,length);
p[length]=0;
return p;
}
void start_memory_manager(void)
{
GLOBAL(head) = NULL;
}
void shutdown_memory_manager(void)
{
mem_header *p, *t;
p=GLOBAL(head);
t=GLOBAL(head);
while (t) {
#if DEBUG
/* does not use php3_error() *intentionally* */
if (error_reporting & E_WARNING) {
php3_printf("Freeing %x (%d bytes), allocated in %s on line %d<br>\n",(void *)((char *)t+sizeof(mem_header)+PLATFORM_PADDING),t->size,t->filename,t->lineno);
}
#endif
p = t->pNext;
#if DEBUG
free(t->filename);
#endif
free(t);
t = p;
}
}
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
*/
|
