/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  |  |  */  |