mirror of
https://github.com/php/php-src.git
synced 2024-12-17 05:50:14 +08:00
62 lines
2.3 KiB
C
62 lines
2.3 KiB
C
/*
|
|
+----------------------------------------------------------------------+
|
|
| PHP Version 7 |
|
|
+----------------------------------------------------------------------+
|
|
| Copyright (c) 1997-2017 The PHP Group |
|
|
+----------------------------------------------------------------------+
|
|
| This source file is subject to version 3.01 of the PHP 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.php.net/license/3_01.txt |
|
|
| If you did not receive a copy of the PHP license and are unable to |
|
|
| obtain it through the world-wide-web, please send a note to |
|
|
| license@php.net so we can mail you a copy immediately. |
|
|
+----------------------------------------------------------------------+
|
|
| Author: Dmitry Stogov <dmitry@zend.com> |
|
|
+----------------------------------------------------------------------+
|
|
*/
|
|
|
|
#include <zend.h>
|
|
#include "zend_smart_str_public.h"
|
|
|
|
#define SMART_STR_OVERHEAD (ZEND_MM_OVERHEAD + _ZSTR_HEADER_SIZE)
|
|
|
|
#ifndef SMART_STR_PAGE
|
|
# define SMART_STR_PAGE 4096
|
|
#endif
|
|
|
|
#ifndef SMART_STR_START_SIZE
|
|
# define SMART_STR_START_SIZE (256 - SMART_STR_OVERHEAD - 1)
|
|
#endif
|
|
|
|
#define SMART_STR_NEW_SIZE(len) \
|
|
(((len + SMART_STR_OVERHEAD + SMART_STR_PAGE) & ~(SMART_STR_PAGE - 1)) - SMART_STR_OVERHEAD - 1)
|
|
|
|
ZEND_API void ZEND_FASTCALL smart_str_erealloc(smart_str *str, size_t len)
|
|
{
|
|
if (UNEXPECTED(!str->s)) {
|
|
str->a = len < SMART_STR_START_SIZE
|
|
? SMART_STR_START_SIZE
|
|
: SMART_STR_NEW_SIZE(len);
|
|
str->s = zend_string_alloc(str->a, 0);
|
|
ZSTR_LEN(str->s) = 0;
|
|
} else {
|
|
str->a = SMART_STR_NEW_SIZE(len);
|
|
str->s = (zend_string *) erealloc2(str->s, _ZSTR_HEADER_SIZE + str->a + 1, _ZSTR_HEADER_SIZE + ZSTR_LEN(str->s) + 1);
|
|
}
|
|
}
|
|
|
|
ZEND_API void ZEND_FASTCALL smart_str_realloc(smart_str *str, size_t len)
|
|
{
|
|
if (UNEXPECTED(!str->s)) {
|
|
str->a = len < SMART_STR_START_SIZE
|
|
? SMART_STR_START_SIZE
|
|
: SMART_STR_NEW_SIZE(len);
|
|
str->s = zend_string_alloc(str->a, 1);
|
|
ZSTR_LEN(str->s) = 0;
|
|
} else {
|
|
str->a = SMART_STR_NEW_SIZE(len);
|
|
str->s = (zend_string *) realloc(str->s, _ZSTR_HEADER_SIZE + str->a + 1);
|
|
}
|
|
}
|