--- include/urcu/futex.h | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+)
diff --git a/include/urcu/futex.h b/include/urcu/futex.h index c206c6f..5a95d00 100644 --- a/include/urcu/futex.h +++ b/include/urcu/futex.h @@ -24,6 +24,7 @@ */ #include <urcu/config.h> +#include <errno.h> #include <stdint.h> #include <time.h> @@ -103,6 +104,49 @@ static inline int futex_async(int32_t *uaddr, int op, int32_t val, return ret; } +#elif defined(__FreeBSD__) + +#include <sys/umtx.h> + +static inline int futex_async(int32_t *uaddr, int op, int32_t val, + const struct timespec *timeout, int32_t *uaddr2, int32_t val3) +{ + int umtx_op; + void *umtx_uaddr = NULL, *umtx_uaddr2 = NULL; + struct _umtx_time umtx_timeout = { + ._flags = UMTX_ABSTIME, + ._clockid = CLOCK_MONOTONIC + }; + + switch (op) { + case FUTEX_WAIT: + // on FreeBSD, a "u_int" is a 32-bit integer + umtx_op = UMTX_OP_WAIT_UINT; + if (timeout != NULL) { + umtx_timeout._timeout = *timeout; + umtx_uaddr = (void *)sizeof(umtx_timeout); + umtx_uaddr2 = (void *)&umtx_timeout; + } + break; + + case FUTEX_WAKE: + umtx_op = UMTX_OP_WAKE; + break; + + default: + errno = EINVAL; + return -1; + } + + return _umtx_op(uaddr, umtx_op, val, umtx_uaddr, umtx_uaddr2); +} + +static inline int futex_noasync(int32_t *uaddr, int op, int32_t val, + const struct timespec *timeout, int32_t *uaddr2, int32_t val3) +{ + return futex_async(uaddr, op, val, timeout, uaddr2, val3); +} + #elif defined(__CYGWIN__) /* -- 2.25.0 _______________________________________________ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev