diff options
| author | Keith Packard <keithp@keithp.com> | 2013-11-20 09:12:36 -0800 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2013-11-20 14:13:08 -0800 |
| commit | bdbb26378da91e541f2fe2b3e827d9f6ed11f4a8 (patch) | |
| tree | cfa1d4388f471208be26eb30fa811cdb8b496128 | |
| parent | c17583d05872e4d9fb39af1a9963dc3738556b27 (diff) | |
Use O_TMPFILE if available
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
| -rw-r--r-- | src/xshmfence.c | 14 | ||||
| -rw-r--r-- | src/xshmfenceint.h | 2 |
2 files changed, 12 insertions, 4 deletions
diff --git a/src/xshmfence.c b/src/xshmfence.c index ecf2f4a..ed2b4c4 100644 --- a/src/xshmfence.c +++ b/src/xshmfence.c @@ -97,7 +97,6 @@ xshmfence_reset(struct xshmfence *f) __sync_bool_compare_and_swap(&f->v, 1, 0); } - /** * xshmfence_alloc_shm: * @@ -111,12 +110,19 @@ int xshmfence_alloc_shm(void) { char template[] = SHMDIR "/shmfd-XXXXXX"; - int fd = mkstemp(template); + int fd; +#ifdef O_TMPFILE + fd = open(SHMDIR, O_TMPFILE|O_RDWR|O_CLOEXEC|O_EXCL, 0666); if (fd < 0) +#endif + { + fd = mkstemp(template); + if (fd < 0) return fd; - unlink(template); - ftruncate(fd, sizeof (int32_t)); + unlink(template); + } + ftruncate(fd, sizeof (struct xshmfence)); return fd; } diff --git a/src/xshmfenceint.h b/src/xshmfenceint.h index e7b8b2a..66862d0 100644 --- a/src/xshmfenceint.h +++ b/src/xshmfenceint.h @@ -32,6 +32,8 @@ #include <unistd.h> #include <sys/syscall.h> #include <sys/mman.h> +#include <sys/stat.h> +#include <fcntl.h> #include <errno.h> #include <values.h> #include "xshmfence.h" |