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lib/libc/sys/sigwaitinfo.2
| Show All 21 Lines | |||||
| .\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | .\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | ||||
| .\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | .\" BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | ||||
| .\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE | .\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE | ||||
| .\" OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | .\" OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | ||||
| .\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | .\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||||
| .\" | .\" | ||||
| .\" $FreeBSD$ | .\" $FreeBSD$ | ||||
| .\" | .\" | ||||
| .Dd September 27, 2012 | .Dd April 21, 2022 | ||||
| .Dt SIGTIMEDWAIT 2 | .Dt SIGTIMEDWAIT 2 | ||||
| .Os | .Os | ||||
| .Sh NAME | .Sh NAME | ||||
| .Nm sigtimedwait , sigwaitinfo | .Nm sigtimedwait , sigwaitinfo | ||||
| .Nd "wait for queued signals (REALTIME)" | .Nd "wait for queued signals (REALTIME)" | ||||
| .Sh LIBRARY | .Sh LIBRARY | ||||
| .Lb libc | .Lb libc | ||||
| .Sh SYNOPSIS | .Sh SYNOPSIS | ||||
| Show All 26 Lines | |||||
| .Fa set | .Fa set | ||||
| are pending, then | are pending, then | ||||
| .Fn sigtimedwait | .Fn sigtimedwait | ||||
| returns immediately with an error. | returns immediately with an error. | ||||
| If | If | ||||
| .Fa timeout | .Fa timeout | ||||
| is the | is the | ||||
| .Dv NULL | .Dv NULL | ||||
| pointer, the behavior is unspecified. | pointer, | ||||
| .Fn sigtimedwait | |||||
| blocks indefinitely. | |||||
| .Dv CLOCK_MONOTONIC | .Dv CLOCK_MONOTONIC | ||||
| clock is used to measure the time interval specified by the | clock is used to measure the time interval specified by the | ||||
| .Fa timeout | .Fa timeout | ||||
| argument. | argument. | ||||
| .Pp | .Pp | ||||
| The | The | ||||
| .Fn sigwaitinfo | .Fn sigwaitinfo | ||||
| system call selects the pending signal from the set specified by | system call selects the pending signal from the set specified by | ||||
| ▲ Show 20 Lines • Show All 117 Lines • ▼ Show 20 Lines | |||||
| .Xr siginfo 3 | .Xr siginfo 3 | ||||
| .Sh STANDARDS | .Sh STANDARDS | ||||
| The | The | ||||
| .Fn sigtimedwait | .Fn sigtimedwait | ||||
| and | and | ||||
| .Fn sigwaitinfo | .Fn sigwaitinfo | ||||
| system calls conform to | system calls conform to | ||||
| .St -p1003.1-96 . | .St -p1003.1-96 . | ||||
| POSIX | |||||
| leaves the behavior of | |||||
| .Fn sigtimedwait | |||||
| with a | |||||
| .Dv NULL | |||||
| .Fa timeout | |||||
| pointer unspecified. | |||||