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Open device nodes with close-on-exec flag

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Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Rémi Denis-Courmont 2009-11-07 21:29:23 +02:00 • committed by Takashi Iwai
parent ef2d3cf747
commit 8264b2fd0a
1 changed files with 19 additions and 13 deletions
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32
include/local.h
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@ -230,22 +230,28 @@ extern snd_lib_error_handler_t snd_err_msg;
# define link_warning(symbol, msg) # define link_warning(symbol, msg)
#endif #endif
/* open with resmgr */
#ifdef SUPPORT_RESMGR
static inline int snd_open_device(const char *filename, int fmode) static inline int snd_open_device(const char *filename, int fmode)
{ {
int fd = open(filename, fmode); int fd;
if (fd >= 0)
return fd; #ifdef O_CLOEXEC
if (errno == EAGAIN || errno == EBUSY) fmode |= O_CLOEXEC;
return fd;
if (! access(filename, F_OK))
return rsm_open_device(filename, fmode);
return -1;
}
#else
#define snd_open_device(filename, fmode) open(filename, fmode);
#endif #endif
fd = open(filename, fmode);
/* open with resmgr */
#ifdef SUPPORT_RESMGR
if (fd < 0) {
if (errno == EAGAIN || errno == EBUSY)
return fd;
if (! access(filename, F_OK))
fd = rsm_open_device(filename, fmode);
}
#endif
if (fd >= 0)
fcntl(fd, F_SETFD, FD_CLOEXEC);
return fd;
}
/* make local functions really local */ /* make local functions really local */
#define snd_dlobj_cache_lookup \ #define snd_dlobj_cache_lookup \