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pipe: replace PIPE_BUF macro pa pa_pipe_buf call

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This should help portability to platforms that lack PIPE_BUF. Based on a
patch from Samuel Thibault.

See ticket #546
This commit is contained in:
Lennart Poettering 2009-08-01 01:59:58 +02:00
parent 0113e7282c
commit e5c2256e36
4 changed files with 23 additions and 4 deletions
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16
src/pulsecore/core-util.c
View file

@ -2779,3 +2779,19 @@ char* pa_maybe_prefix_path(const char *path, const char *prefix) {
return pa_sprintf_malloc("%s" PA_PATH_SEP "%s", prefix, path);
}
size_t pa_pipe_buf(int fd) {
#ifdef _PC_PIPE_BUF
long n;
if ((n = fpathconf(fd, _PC_PIPE_BUF)) >= 0)
return (size_t) n;
#endif
#ifdef PIPE_BUF
return PIPE_BUF;
#else
return 4096;
#endif
}

3
src/pulsecore/core-util.h
View file

@ -236,4 +236,7 @@ char **pa_split_spaces_strv(const char *s);
char* pa_maybe_prefix_path(const char *path, const char *prefix);
/* Returns size of the specified pipe or 4096 on failure */
size_t pa_pipe_buf(int fd);
#endif