diff options
| author | Jonathan Gray <[email protected]> | 2019-12-01 02:19:38 +1100 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2019-12-02 17:23:49 -0500 |
| commit | c91997b6c4395831a8de2b84e6ea2ff981a00e4b (patch) | |
| tree | 3c3d87359f0e83f49b9c21193438666ee1e745b8 /src/util/futex.h | |
| parent | dbe923bff99cfca4f192db3b9ea88cd19ee7af85 (diff) | |
util/futex: use futex syscall on OpenBSD
Make use of the futex syscall added in OpenBSD 6.2.
Signed-off-by: Jonathan Gray <[email protected]>
Signed-off-by: Marek Olšák <[email protected]>
Diffstat (limited to 'src/util/futex.h')
| -rw-r--r-- | src/util/futex.h | 18 |
1 files changed, 18 insertions, 0 deletions
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 */ |