SIGPAUSE(2)SIGPAUSE(2)NAMEsigpause - atomically release blocked signals and wait for interrupt
SYNOPSISsigpause(sigmask)
int sigmask;
DESCRIPTION
Sigpause assigns sigmask to the set of masked signals and then waits
for a signal to arrive; on return the set of masked signals is
restored. Sigmask is usually 0 to indicate that no signals are now to
be blocked. Sigpause always terminates by being interrupted, returning
-1 with errno set to EINTR.
In normal usage, a signal is blocked using sigblock(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 sigpause with the mask returned
by sigblock.
SEE ALSOsigblock(2), sigvec(2)4th Berkeley Distribution May 15, 1986 SIGPAUSE(2)