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|
/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2018 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: Sascha Schumann <sascha@schumann.cx> |
| Xinchen Hui <laruence@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifndef PHP_SMART_STRING_H
#define PHP_SMART_STRING_H
#include "zend_smart_string_public.h"
#include <stdlib.h>
#ifndef SMART_STR_USE_REALLOC
#include <zend.h>
#endif
#ifndef SMART_STRING_PREALLOC
#define SMART_STRING_PREALLOC 128
#endif
#ifndef SMART_STRING_START_SIZE
#define SMART_STRING_START_SIZE 78
#endif
#ifdef SMART_STRING_USE_REALLOC
#define SMART_STRING_REALLOC(a,b,c) realloc((a),(b))
#else
#define SMART_STRING_REALLOC(a,b,c) perealloc((a),(b),(c))
#endif
#define SMART_STRING_DO_REALLOC(d, what) \
(d)->c = (char *) SMART_STRING_REALLOC((d)->c, (d)->a + 1, (what))
/* wrapper */
#define smart_string_appends_ex(str, src, what) \
smart_string_appendl_ex((str), (src), strlen(src), (what))
#define smart_string_appends(str, src) \
smart_string_appendl((str), (src), strlen(src))
#define smart_string_append_ex(str, src, what) \
smart_string_appendl_ex((str), ((smart_string *)(src))->c, \
((smart_string *)(src))->len, (what));
#define smart_string_sets(str, src) \
smart_string_setl((str), (src), strlen(src));
#define smart_string_appendc(str, c) \
smart_string_appendc_ex((str), (c), 0)
#define smart_string_free(s) \
smart_string_free_ex((s), 0)
#define smart_string_appendl(str, src, len) \
smart_string_appendl_ex((str), (src), (len), 0)
#define smart_string_append(str, src) \
smart_string_append_ex((str), (src), 0)
#define smart_string_append_long(str, val) \
smart_string_append_long_ex((str), (val), 0)
#define smart_string_append_unsigned(str, val) \
smart_string_append_unsigned_ex((str), (val), 0)
static zend_always_inline size_t smart_string_alloc(smart_string *str, size_t len, zend_bool persistent) {
if (!str->c) {
str->len = 0;
str->a = len < SMART_STRING_START_SIZE
? SMART_STRING_START_SIZE
: len + SMART_STRING_PREALLOC;
SMART_STRING_DO_REALLOC(str, persistent);
return len;
} else {
if (UNEXPECTED((size_t) len > SIZE_MAX - str->len)) {
zend_error(E_ERROR, "String size overflow");
}
len += str->len;
if (UNEXPECTED(len >= str->a)) {
str->a = len + SMART_STRING_PREALLOC;
SMART_STRING_DO_REALLOC(str, persistent);
}
}
return len;
}
static zend_always_inline void smart_string_free_ex(smart_string *str, zend_bool persistent) {
if (str->c) {
pefree(str->c, persistent);
str->c = NULL;
}
str->a = str->len = 0;
}
static zend_always_inline void smart_string_0(smart_string *str) {
if (str->c) {
str->c[str->len] = '\0';
}
}
static zend_always_inline void smart_string_appendc_ex(smart_string *dest, char ch, zend_bool persistent) {
dest->len = smart_string_alloc(dest, 1, persistent);
dest->c[dest->len - 1] = ch;
}
static zend_always_inline void smart_string_appendl_ex(smart_string *dest, const char *str, size_t len, zend_bool persistent) {
size_t new_len = smart_string_alloc(dest, len, persistent);
memcpy(dest->c + dest->len, str, len);
dest->len = new_len;
}
static zend_always_inline void smart_string_append_long_ex(smart_string *dest, zend_long num, zend_bool persistent) {
char buf[32];
char *result = zend_print_long_to_buf(buf + sizeof(buf) - 1, num);
smart_string_appendl_ex(dest, result, buf + sizeof(buf) - 1 - result, persistent);
}
static zend_always_inline void smart_string_append_unsigned_ex(smart_string *dest, zend_ulong num, zend_bool persistent) {
char buf[32];
char *result = zend_print_ulong_to_buf(buf + sizeof(buf) - 1, num);
smart_string_appendl_ex(dest, result, buf + sizeof(buf) - 1 - result, persistent);
}
static zend_always_inline void smart_string_setl(smart_string *dest, char *src, size_t len) {
dest->len = len;
dest->a = len + 1;
dest->c = src;
}
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
|
