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| author | Eric S. Raymond <esr@thyrsus.com> | 2015-02-25 18:18:24 -0500 |
|---|---|---|
| committer | Eric S. Raymond <esr@thyrsus.com> | 2015-02-25 18:18:24 -0500 |
| commit | 33ed89bab834374e4d6f54d918763adf6212040a (patch) | |
| tree | fb3cb002b6469d8277843cd0d2e2439e1b495e10 /gpsd.h-tail | |
| parent | 05b3c089bc0ba94281190b453dedbe9adf70d25c (diff) | |
| download | gpsd-33ed89bab834374e4d6f54d918763adf6212040a.tar.gz | |
Concurrency protection for ntpmon using memory barrier instructions.
Diffstat (limited to 'gpsd.h-tail')
| -rw-r--r-- | gpsd.h-tail | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/gpsd.h-tail b/gpsd.h-tail index 5c3b5071..5b82f117 100644 --- a/gpsd.h-tail +++ b/gpsd.h-tail @@ -1107,24 +1107,6 @@ void cfmakeraw(struct termios *); #define DEVICEHOOKPATH "/"SYSCONFDIR"/gpsd/device-hook" -/* Needed because 4.x versions of GCC are really annoying */ -#define ignore_return(funcall) \ - do { \ - ssize_t locresult = (funcall); \ - assert(locresult != -23); \ - } while (0) - -static /*@unused@*/ inline void memory_barrier(void) -{ -#ifndef S_SPLINT_S -#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7) - __atomic_thread_fence(__ATOMIC_SEQ_CST); -#elif (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) - __sync_synchronize(); -#endif -#endif /* S_SPLINT_S */ -} - # ifdef __cplusplus } # endif |