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sigpause(2)
NAME
sigpause -- atomically release blocked signals and wait for interrupt
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <signal.h>
int
sigpause(int sigmask);
DESCRIPTION
This interface is made obsolete by sigsuspend(2).
The sigpause() function 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. The sigmask argument is usually 0 to indicate that no signals
are to be blocked. The sigpause() function always terminates by being
interrupted, returning -1 with errno set to EINTR
SEE ALSO
kill(2), sigaction(2), sigblock(2), sigprocmask(2), sigsuspend(2),
sigvec(2)
STANDARDS
The sigpause() function is implemented for compatibility with historic
4.3BSD applications. An incompatible interface by the same name, which
used a single signal number rather than a mask, was present in AT&T
System V UNIX, and was copied from there into the X/Open System
Interfaces (XSI) option of IEEE Std 1003.1-2001 (``POSIX.1'').
HISTORY
The sigpause() function appeared in 4.2BSD and has been deprecated.
FreeBSD 5.4 June 2, 1993 FreeBSD 5.4
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