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| author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2008-07-23 22:32:19 +0000 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2008-07-23 22:32:19 +0000 |
| commit | a39cf49f3a27c9c866cd6a074e94596689d8aafb (patch) | |
| tree | 22286a4057621f4e4a42745f3439acad64005e89 /doc | |
| parent | 2008-07-23 Joel Sherrill <joel.sherrill@oarcorp.com> (diff) | |
| download | rtems-a39cf49f3a27c9c866cd6a074e94596689d8aafb.tar.bz2 | |
2008-07-23 Joel Sherrill <joel.sherrill@OARcorp.com>
PR 1291/cpukit
* posix_users/semaphores.t: Update to reflect absolute time.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/ChangeLog | 5 | ||||
| -rw-r--r-- | doc/posix_users/semaphores.t | 18 |
2 files changed, 15 insertions, 8 deletions
diff --git a/doc/ChangeLog b/doc/ChangeLog index 2aca1fe4cc..7045e9de49 100644 --- a/doc/ChangeLog +++ b/doc/ChangeLog @@ -1,3 +1,8 @@ +2008-07-23 Joel Sherrill <joel.sherrill@OARcorp.com> + + PR 1291/cpukit + * posix_users/semaphores.t: Update to reflect absolute time. + 2008-07-23 Joel Sherrill <joel.sherrill@oarcorp.com> * shell/Makefile.am, shell/rtems.t: Add pthread command. diff --git a/doc/posix_users/semaphores.t b/doc/posix_users/semaphores.t index f58c1533dc..9ad7f24899 100644 --- a/doc/posix_users/semaphores.t +++ b/doc/posix_users/semaphores.t @@ -463,7 +463,7 @@ Multiprocessing is not supported in this implementation. @example int sem_timedwait( sem_t *sem, - const struct timespec *timeout + const struct timespec *abstime ); @end example @end ifset @@ -484,13 +484,15 @@ The @code{sem} argument does not refewr to a valid semaphore @end table @subheading DESCRIPTION: -This function attemtps to lock a semaphore specified by @code{sem}, and will -wait for the semaphore for an interval specified by @code{timeout}. If the -semaphore is available, then the semaphore is locked (i.e., the semaphore -value is decremented) and the function returns a value of 0. The semaphore -remains locked until released by a @code{sem_post()} call. If the semaphore -is unavailable, then the function will wait for the semaphore to become -available for the amount of time specified by @code{timeout}. + +This function attemtps to lock a semaphore specified by @code{sem}, +and will wait for the semaphore until the absolute time specified by +@code{abstime}. If the semaphore is available, then the semaphore is +locked (i.e., the semaphore value is decremented) and the function +returns a value of 0. The semaphore remains locked until released by +a @code{sem_post()} call. If the semaphore is unavailable, then the +function will wait for the semaphore to become available for the amount +of time specified by @code{timeout}. If the semaphore does not become available within the interval specified by @code{timeout}, then the function returns -1 and sets @code{errno} to EAGAIN. |