PipeWire  0.3.29
src/pipewire/utils.h
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1 /* PipeWire
2  *
3  * Copyright © 2018 Wim Taymans
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice (including the next
13  * paragraph) shall be included in all copies or substantial portions of the
14  * Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22  * DEALINGS IN THE SOFTWARE.
23  */
24 
25 #ifndef PIPEWIRE_UTILS_H
26 #define PIPEWIRE_UTILS_H
27 
28 #ifdef __cplusplus
29 extern "C" {
30 #endif
31 
32 #include <string.h>
33 
34 #include <spa/utils/defs.h>
35 #include <spa/pod/pod.h>
36 
48 typedef void (*pw_destroy_t) (void *object);
49 
50 const char *
51 pw_split_walk(const char *str, const char *delimiter, size_t *len, const char **state);
52 
53 char **
54 pw_split_strv(const char *str, const char *delimiter, int max_tokens, int *n_tokens);
55 
56 void
57 pw_free_strv(char **str);
58 
59 char *
60 pw_strip(char *str, const char *whitespace);
61 
62 #if !defined(strndupa)
63 # define strndupa(s, n) \
64  ({ \
65  const char *__old = (s); \
66  size_t __len = strnlen(__old, (n)); \
67  char *__new = (char *) __builtin_alloca(__len + 1); \
68  memcpy(__new, __old, __len); \
69  __new[__len] = '\0'; \
70  __new; \
71  })
72 #endif
73 
74 #if !defined(strdupa)
75 # define strdupa(s) \
76  ({ \
77  const char *__old = (s); \
78  size_t __len = strlen(__old) + 1; \
79  char *__new = (char *) alloca(__len); \
80  (char *) memcpy(__new, __old, __len); \
81  })
82 #endif
83 
88 #ifdef __cplusplus
89 } /* extern "C" */
90 #endif
91 
92 #endif /* PIPEWIRE_UTILS_H */
void(* pw_destroy_t)(void *object)
a function to destroy an item
Definition: src/pipewire/utils.h:48
char * pw_strip(char *str, const char *whitespace)
Strip all whitespace before and after a string.
Definition: utils.c:120
void pw_free_strv(char **str)
Free a NULL terminated array of strings.
Definition: utils.c:99
const char * pw_split_walk(const char *str, const char *delimiter, size_t *len, const char **state)
Split a string based on delimiters.
Definition: utils.c:43
char ** pw_split_strv(const char *str, const char *delimiter, int max_tokens, int *n_tokens)
Split a string based on delimiters.
Definition: utils.c:67