1 /*
2 +----------------------------------------------------------------------+
3 | Copyright (c) The PHP Group |
4 +----------------------------------------------------------------------+
5 | This source file is subject to version 3.01 of the PHP license, |
6 | that is bundled with this package in the file LICENSE, and is |
7 | available through the world-wide-web at the following url: |
8 | https://www.php.net/license/3_01.txt |
9 | If you did not receive a copy of the PHP license and are unable to |
10 | obtain it through the world-wide-web, please send a note to |
11 | license@php.net so we can mail you a copy immediately. |
12 +----------------------------------------------------------------------+
13 | Author: Sascha Schumann <sascha@schumann.cx> |
14 | Xinchen Hui <laruence@php.net> |
15 +----------------------------------------------------------------------+
16 */
17
18 #ifndef PHP_SMART_STRING_H
19 #define PHP_SMART_STRING_H
20
21 #include "zend_smart_string_public.h"
22
23 #include <stdlib.h>
24 #include <zend.h>
25
26 /* wrapper */
27
28 #define smart_string_appends_ex(str, src, what) \
29 smart_string_appendl_ex((str), (src), strlen(src), (what))
30 #define smart_string_appends(str, src) \
31 smart_string_appendl((str), (src), strlen(src))
32 #define smart_string_append_ex(str, src, what) \
33 smart_string_appendl_ex((str), ((smart_string *)(src))->c, \
34 ((smart_string *)(src))->len, (what));
35 #define smart_string_sets(str, src) \
36 smart_string_setl((str), (src), strlen(src));
37
38 #define smart_string_appendc(str, c) \
39 smart_string_appendc_ex((str), (c), 0)
40 #define smart_string_free(s) \
41 smart_string_free_ex((s), 0)
42 #define smart_string_appendl(str, src, len) \
43 smart_string_appendl_ex((str), (src), (len), 0)
44 #define smart_string_append(str, src) \
45 smart_string_append_ex((str), (src), 0)
46 #define smart_string_append_long(str, val) \
47 smart_string_append_long_ex((str), (val), 0)
48 #define smart_string_append_unsigned(str, val) \
49 smart_string_append_unsigned_ex((str), (val), 0)
50
51 ZEND_API void ZEND_FASTCALL _smart_string_alloc_persistent(smart_string *str, size_t len);
52 ZEND_API void ZEND_FASTCALL _smart_string_alloc(smart_string *str, size_t len);
53
smart_string_alloc(smart_string * str,size_t len,bool persistent)54 static zend_always_inline size_t smart_string_alloc(smart_string *str, size_t len, bool persistent) {
55 if (UNEXPECTED(!str->c) || UNEXPECTED(len >= str->a - str->len)) {
56 if (persistent) {
57 _smart_string_alloc_persistent(str, len);
58 } else {
59 _smart_string_alloc(str, len);
60 }
61 }
62 return str->len + len;
63 }
64
smart_string_free_ex(smart_string * str,bool persistent)65 static zend_always_inline void smart_string_free_ex(smart_string *str, bool persistent) {
66 if (str->c) {
67 pefree(str->c, persistent);
68 str->c = NULL;
69 }
70 str->a = str->len = 0;
71 }
72
smart_string_0(smart_string * str)73 static zend_always_inline void smart_string_0(smart_string *str) {
74 if (str->c) {
75 str->c[str->len] = '\0';
76 }
77 }
78
smart_string_appendc_ex(smart_string * dest,char ch,bool persistent)79 static zend_always_inline void smart_string_appendc_ex(smart_string *dest, char ch, bool persistent) {
80 dest->len = smart_string_alloc(dest, 1, persistent);
81 dest->c[dest->len - 1] = ch;
82 }
83
smart_string_appendl_ex(smart_string * dest,const char * str,size_t len,bool persistent)84 static zend_always_inline void smart_string_appendl_ex(smart_string *dest, const char *str, size_t len, bool persistent) {
85 size_t new_len = smart_string_alloc(dest, len, persistent);
86 memcpy(dest->c + dest->len, str, len);
87 dest->len = new_len;
88
89 }
90
smart_string_append_long_ex(smart_string * dest,zend_long num,bool persistent)91 static zend_always_inline void smart_string_append_long_ex(smart_string *dest, zend_long num, bool persistent) {
92 char buf[32];
93 char *result = zend_print_long_to_buf(buf + sizeof(buf) - 1, num);
94 smart_string_appendl_ex(dest, result, buf + sizeof(buf) - 1 - result, persistent);
95 }
96
smart_string_append_unsigned_ex(smart_string * dest,zend_ulong num,bool persistent)97 static zend_always_inline void smart_string_append_unsigned_ex(smart_string *dest, zend_ulong num, bool persistent) {
98 char buf[32];
99 char *result = zend_print_ulong_to_buf(buf + sizeof(buf) - 1, num);
100 smart_string_appendl_ex(dest, result, buf + sizeof(buf) - 1 - result, persistent);
101 }
102
smart_string_setl(smart_string * dest,char * src,size_t len)103 static zend_always_inline void smart_string_setl(smart_string *dest, char *src, size_t len) {
104 dest->len = len;
105 dest->a = len + 1;
106 dest->c = src;
107 }
108
smart_string_reset(smart_string * str)109 static zend_always_inline void smart_string_reset(smart_string *str) {
110 str->len = 0;
111 }
112
113 #endif
114
