diff options
Diffstat (limited to 'share/man/man9/sema.9')
| -rw-r--r-- | share/man/man9/sema.9 | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/share/man/man9/sema.9 b/share/man/man9/sema.9 index 1617e6e40aae..020790085381 100644 --- a/share/man/man9/sema.9 +++ b/share/man/man9/sema.9 @@ -100,7 +100,9 @@ specifies the minimum time in ticks to wait before returning with failure. .Fn sema_value is used to read the current value of the semaphore. .Sh RETURN VALUES +The .Fn sema_value +function returns the current value of the semaphore. .Pp If decrementing the semaphore would result in its value being negative, @@ -108,12 +110,15 @@ If decrementing the semaphore would result in its value being negative, returns 0 to indicate failure. Otherwise, a non-zero value is returned to indicate success. .Pp +The .Fn sema_timedwait +function returns 0 if waiting on the semaphore succeeded; otherwise a non-zero error code is returned. .Sh ERRORS +The .Fn sema_timedwait -will fail if: +function will fail if: .Bl -tag -width Er .It Bq Er EWOULDBLOCK Timeout expired. |