---
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
