NAME    [Toc]    [Back]

     sigpause -- atomically release blocked signals and wait for interrupt

LIBRARY    [Toc]    [Back]

     Standard C Library (libc, -lc)

SYNOPSIS    [Toc]    [Back]

     #include <signal.h>

     int
     sigpause(int sigmask);

DESCRIPTION    [Toc]    [Back]

     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    [Toc]    [Back]

     kill(2), sigaction(2), sigblock(2), sigprocmask(2), sigsuspend(2),
     sigvec(2)

STANDARDS    [Toc]    [Back]

     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    [Toc]    [Back]

     The sigpause() function appeared in 4.2BSD and has been deprecated.


FreeBSD 5.2.1			 June 2, 1993			 FreeBSD 5.2.1