SIGSUSPEND(2) BSD Programmer's Manual SIGSUSPEND(2)
sigsuspend - atomically release blocked signals and wait for interrupt
#include <signal.h> int sigsuspend(const sigset_t *sigmask);
sigsuspend() temporarily changes the blocked signal mask to the set to which sigmask points, and then waits for a signal to arrive; on return the previous set of masked signals is restored. The signal mask set is usually empty to indicate that all signals are to be unblocked for the duration of the call. In normal usage, a signal is blocked using sigprocmask(2) to begin a critical section, variables modified on the occurrence of the signal are examined to determine that there is no work to be done, and the process pauses awaiting work by using sigsuspend() with the previous mask re- turned by sigprocmask(2).
The sigsuspend() function always terminates by being interrupted, return- ing -1 with errno set to EINTR.
sigaction(2), sigprocmask(2), sigsetops(3)
The sigsuspend function call conforms to IEEE Std 1003.1-1988 ("POSIX"). MirOS BSD #10-current June 4, 1993 1
Generated on 2016-04-09 18:24:16 by $MirOS: src/scripts/roff2htm,v 1.83 2016/03/26 23:38:28 tg Exp $
These manual pages and other documentation are copyrighted by their respective writers;
their source is available at our CVSweb,
AnonCVS, and other mirrors. The rest is Copyright © 2002–2016 The MirOS Project, Germany.
This product includes material provided by mirabilos.
This manual page’s HTML representation is supposed to be valid XHTML/1.1; if not, please send a bug report – diffs preferred.