PipeWire  1.3.83
utils.h
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1 /* PipeWire */
2 /* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
3 /* SPDX-License-Identifier: MIT */
4 
5 #ifndef PIPEWIRE_UTILS_H
6 #define PIPEWIRE_UTILS_H
7 
8 #ifdef __cplusplus
9 extern "C" {
10 #endif
11 
12 #include <stdlib.h>
13 #include <string.h>
14 #include <sys/un.h>
15 #ifndef _POSIX_C_SOURCE
16 # include <sys/mount.h>
17 #endif
18 #include <errno.h>
19 
20 #ifndef ENODATA
21 #define ENODATA 9919
22 #endif
23 
24 #include <spa/utils/cleanup.h>
25 #include <spa/utils/defs.h>
26 #include <spa/pod/pod.h>
27 
39 typedef void (*pw_destroy_t) (void *object);
40 
41 const char *
42 pw_split_walk(const char *str, const char *delimiter, size_t *len, const char **state);
43 
44 char **
45 pw_split_strv(const char *str, const char *delimiter, int max_tokens, int *n_tokens);
46 
47 int
48 pw_split_ip(char *str, const char *delimiter, int max_tokens, char *tokens[]);
49 
50 char **pw_strv_parse(const char *val, size_t len, int max_tokens, int *n_tokens);
51 
52 int pw_strv_find(char **a, const char *b);
53 
54 int pw_strv_find_common(char **a, char **b);
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 
85 ssize_t pw_getrandom(void *buf, size_t buflen, unsigned int flags);
86 
87 void pw_random(void *buf, size_t buflen);
88 
89 #define pw_rand32() ({ uint32_t val; pw_random(&val, sizeof(val)); val; })
90 
91 void* pw_reallocarray(void *ptr, size_t nmemb, size_t size);
92 
93 #ifdef PW_ENABLE_DEPRECATED
94 #define PW_DEPRECATED(v) (v)
95 #else
96 #define PW_DEPRECATED(v) ({ __typeof__(v) _v SPA_DEPRECATED = (v); (void)_v; (v); })
97 #endif /* PW_ENABLE_DEPRECATED */
98 
103 SPA_DEFINE_AUTO_CLEANUP(pw_strv, char **, {
104  spa_clear_ptr(*thing, pw_free_strv);
105 })
106 
107 #ifdef __cplusplus
108 } /* extern "C" */
109 #endif
110 
111 #endif /* PIPEWIRE_UTILS_H */
spa/utils/defs.h
int pw_strv_find(char **a, const char *b)
Find a string in a NULL terminated array of strings.
Definition: utils.c:195
void * pw_reallocarray(void *ptr, size_t nmemb, size_t size)
Definition: utils.c:367
void(* pw_destroy_t)(void *object)
a function to destroy an item
Definition: utils.h:43
ssize_t pw_getrandom(void *buf, size_t buflen, unsigned int flags)
Fill a buffer with random data.
Definition: utils.c:308
char * pw_strip(char *str, const char *whitespace)
Strip all whitespace before and after a string.
Definition: utils.c:256
char ** pw_strv_parse(const char *val, size_t len, int max_tokens, int *n_tokens)
Parse an array of strings.
Definition: utils.c:131
void pw_random(void *buf, size_t buflen)
Fill a buffer with random data.
Definition: utils.c:335
void pw_free_strv(char **str)
Free a NULL terminated array of strings.
Definition: utils.c:235
int pw_strv_find_common(char **a, char **b)
Check if two NULL terminated arrays of strings have a common string.
Definition: utils.c:215
int pw_split_ip(char *str, const char *delimiter, int max_tokens, char *tokens[])
Split a string in-place based on delimiters.
Definition: utils.c:98
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:37
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:60
#define SPA_WARN_UNUSED_RESULT
Definition: defs.h:311
spa/pod/pod.h
spa/utils/string.h