/src/tarantool/third_party/lua-cjson/strbuf.h
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1 | | /* strbuf - String buffer routines |
2 | | * |
3 | | * Copyright (c) 2010-2012 Mark Pulford <mark@kyne.com.au> |
4 | | * |
5 | | * Permission is hereby granted, free of charge, to any person obtaining |
6 | | * a copy of this software and associated documentation files (the |
7 | | * "Software"), to deal in the Software without restriction, including |
8 | | * without limitation the rights to use, copy, modify, merge, publish, |
9 | | * distribute, sublicense, and/or sell copies of the Software, and to |
10 | | * permit persons to whom the Software is furnished to do so, subject to |
11 | | * the following conditions: |
12 | | * |
13 | | * The above copyright notice and this permission notice shall be |
14 | | * included in all copies or substantial portions of the Software. |
15 | | * |
16 | | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
17 | | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
18 | | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
19 | | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
20 | | * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
21 | | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
22 | | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
23 | | */ |
24 | | |
25 | | #include <stdlib.h> |
26 | | #include <stdarg.h> |
27 | | |
28 | | struct ibuf; |
29 | | |
30 | | /* Size: Total bytes allocated to *buf |
31 | | * Length: String length, excluding optional NULL terminator. |
32 | | * Increment: Allocation increments when resizing the string buffer. |
33 | | * Dynamic: True if created via strbuf_new() |
34 | | */ |
35 | | |
36 | | typedef struct { |
37 | | char *buf; |
38 | | int size; |
39 | | int length; |
40 | | int increment; |
41 | | int reallocs; |
42 | | int debug; |
43 | | /** Backend allocator for the buffer data. */ |
44 | | struct ibuf *ibuf; |
45 | | } strbuf_t; |
46 | | |
47 | | #ifndef STRBUF_DEFAULT_SIZE |
48 | 0 | #define STRBUF_DEFAULT_SIZE 1023 |
49 | | #endif |
50 | | #ifndef STRBUF_DEFAULT_INCREMENT |
51 | 0 | #define STRBUF_DEFAULT_INCREMENT -2 |
52 | | #endif |
53 | | |
54 | | /* Initialise */ |
55 | | extern void strbuf_create(strbuf_t *s, int len, struct ibuf *ibuf); |
56 | | extern void strbuf_set_increment(strbuf_t *s, int increment); |
57 | | |
58 | | /* Release */ |
59 | | extern void strbuf_destroy(strbuf_t *s); |
60 | | |
61 | | /* Management */ |
62 | | extern void strbuf_resize(strbuf_t *s, int len); |
63 | | static int strbuf_empty_length(strbuf_t *s); |
64 | | static int strbuf_length(strbuf_t *s); |
65 | | static char *strbuf_string(strbuf_t *s, int *len); |
66 | | static void strbuf_ensure_empty_length(strbuf_t *s, int len); |
67 | | static char *strbuf_empty_ptr(strbuf_t *s); |
68 | | static void strbuf_extend_length(strbuf_t *s, int len); |
69 | | |
70 | | /* Update */ |
71 | | extern void strbuf_append_fmt(strbuf_t *s, int len, const char *fmt, ...); |
72 | | extern void strbuf_append_fmt_retry(strbuf_t *s, const char *format, ...); |
73 | | static void strbuf_append_mem(strbuf_t *s, const char *c, int len); |
74 | | extern void strbuf_append_string(strbuf_t *s, const char *str); |
75 | | static void strbuf_append_char(strbuf_t *s, const char c); |
76 | | static void strbuf_ensure_null(strbuf_t *s); |
77 | | |
78 | | /* Reset string for before use */ |
79 | | static inline void strbuf_reset(strbuf_t *s) |
80 | 0 | { |
81 | 0 | s->length = 0; |
82 | 0 | } Unexecuted instantiation: lua_cjson.c:strbuf_reset Unexecuted instantiation: strbuf.c:strbuf_reset |
83 | | |
84 | | /* Return bytes remaining in the string buffer |
85 | | * Ensure there is space for a NULL terminator. */ |
86 | | static inline int strbuf_empty_length(strbuf_t *s) |
87 | 0 | { |
88 | 0 | return s->size - s->length - 1; |
89 | 0 | } Unexecuted instantiation: lua_cjson.c:strbuf_empty_length Unexecuted instantiation: strbuf.c:strbuf_empty_length |
90 | | |
91 | | static inline void strbuf_ensure_empty_length(strbuf_t *s, int len) |
92 | 0 | { |
93 | 0 | if (len > strbuf_empty_length(s)) |
94 | 0 | strbuf_resize(s, s->length + len); |
95 | 0 | } Unexecuted instantiation: lua_cjson.c:strbuf_ensure_empty_length Unexecuted instantiation: strbuf.c:strbuf_ensure_empty_length |
96 | | |
97 | | static inline char *strbuf_empty_ptr(strbuf_t *s) |
98 | 0 | { |
99 | 0 | return s->buf + s->length; |
100 | 0 | } Unexecuted instantiation: lua_cjson.c:strbuf_empty_ptr Unexecuted instantiation: strbuf.c:strbuf_empty_ptr |
101 | | |
102 | | static inline void strbuf_extend_length(strbuf_t *s, int len) |
103 | 0 | { |
104 | 0 | s->length += len; |
105 | 0 | } Unexecuted instantiation: lua_cjson.c:strbuf_extend_length Unexecuted instantiation: strbuf.c:strbuf_extend_length |
106 | | |
107 | | static inline int strbuf_length(strbuf_t *s) |
108 | 0 | { |
109 | 0 | return s->length; |
110 | 0 | } Unexecuted instantiation: lua_cjson.c:strbuf_length Unexecuted instantiation: strbuf.c:strbuf_length |
111 | | |
112 | | static inline void strbuf_append_char(strbuf_t *s, const char c) |
113 | 0 | { |
114 | 0 | strbuf_ensure_empty_length(s, 1); |
115 | 0 | s->buf[s->length++] = c; |
116 | 0 | } Unexecuted instantiation: lua_cjson.c:strbuf_append_char Unexecuted instantiation: strbuf.c:strbuf_append_char |
117 | | |
118 | | static inline void strbuf_append_char_unsafe(strbuf_t *s, const char c) |
119 | 0 | { |
120 | 0 | s->buf[s->length++] = c; |
121 | 0 | } Unexecuted instantiation: lua_cjson.c:strbuf_append_char_unsafe Unexecuted instantiation: strbuf.c:strbuf_append_char_unsafe |
122 | | |
123 | | static inline void strbuf_append_mem(strbuf_t *s, const char *c, int len) |
124 | 0 | { |
125 | 0 | strbuf_ensure_empty_length(s, len); |
126 | 0 | memcpy(s->buf + s->length, c, len); |
127 | 0 | s->length += len; |
128 | 0 | } Unexecuted instantiation: lua_cjson.c:strbuf_append_mem Unexecuted instantiation: strbuf.c:strbuf_append_mem |
129 | | |
130 | | static inline void strbuf_append_mem_unsafe(strbuf_t *s, const char *c, int len) |
131 | 0 | { |
132 | 0 | memcpy(s->buf + s->length, c, len); |
133 | 0 | s->length += len; |
134 | 0 | } Unexecuted instantiation: lua_cjson.c:strbuf_append_mem_unsafe Unexecuted instantiation: strbuf.c:strbuf_append_mem_unsafe |
135 | | |
136 | | static inline void strbuf_ensure_null(strbuf_t *s) |
137 | 0 | { |
138 | 0 | s->buf[s->length] = 0; |
139 | 0 | } Unexecuted instantiation: lua_cjson.c:strbuf_ensure_null Unexecuted instantiation: strbuf.c:strbuf_ensure_null |
140 | | |
141 | | static inline char *strbuf_string(strbuf_t *s, int *len) |
142 | 0 | { |
143 | 0 | if (len) |
144 | 0 | *len = s->length; |
145 | |
|
146 | 0 | return s->buf; |
147 | 0 | } Unexecuted instantiation: lua_cjson.c:strbuf_string Unexecuted instantiation: strbuf.c:strbuf_string |
148 | | |
149 | | /* vi:ai et sw=4 ts=4: |
150 | | */ |