Make use of the futex syscall added in OpenBSD 6.2.
Signed-off-by: Jonathan Gray <j...@jsg.id.au>
---
src/util/futex.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/src/util/futex.h b/src/util/futex.h
index 268af92882a..cf8dd0206c9 100644
--- a/src/util/futex.h
+++ b/src/util/futex.h
@@ -85,6 +85,24 @@ static inline int futex_wait(uint32_t *addr, int32_t value,
struct timespec *tim
return _umtx_op(addr, UMTX_OP_WAIT_UINT, (uint32_t)value, uaddr, uaddr2) ==
-1 ? errno : 0;
}
+#elif defined(__OpenBSD__)
+
+#include <sys/time.h>
+#include <sys/futex.h>
+
+static inline int futex_wake(uint32_t *addr, int count)
+{
+ return futex(addr, FUTEX_WAKE, count, NULL, NULL);
+}
+
+static inline int futex_wait(uint32_t *addr, int32_t value, const struct
timespec *timeout)
+{
+ struct timespec tsrel, tsnow;
+ clock_gettime(CLOCK_MONOTONIC, &tsnow);
+ timespecsub(timeout, &tsrel, &tsrel);
+ return futex(addr, FUTEX_WAIT, value, &tsrel, NULL);
+}
+
#endif
#endif /* UTIL_FUTEX_H */
--
2.24.0
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