sigwait man page on DragonFly

sigwait man page on DragonFly

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SIGWAIT(3)		 BSD Library Functions Manual		    SIGWAIT(3)

NAME
     sigwait — select a set of signals

LIBRARY
     POSIX Threads Library (libpthread, -lpthread)

SYNOPSIS
     #include <signal.h>

     int
     sigwait(const sigset_t *set, int *sig);

DESCRIPTION
     The sigwait() function selects a set of signals, specified by set.	 If
     none of the selected signals are pending, sigwait() waits until one or
     more of the selected signals has been generated.  Then sigwait() atomi‐
     cally clears one of the selected signals from the set of pending signals
     for the process and sets the location pointed to by sig to the signal
     number that was cleared.

     The signals specified by set should be blocked at the time of the call to
     sigwait().

RETURN VALUES
     If successful, sigwait() returns 0 and sets the location pointed to by
     sig to the cleared signal number.	Otherwise, an error number is
     returned.

ERRORS
     sigwait() will fail if:

     [EINVAL]		set specifies one or more invalid signal numbers.

SEE ALSO
     sigaction(2), sigpending(2), sigsuspend(2), pause(3), pthread_sigmask(3)

STANDARDS
     sigwait() conforms to ISO/IEC 9945-1:1996 (“POSIX.1”).

BSD				April 15, 2009				   BSD

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