sigpause(2)                       SDK R4.11                      sigpause(2)


NAME
       sigpause - clear a blocked signal and suspend process until a signal
       is caught

SYNOPSIS
       #include <sys/signal.h>

       int  sigpause (signalnumber)
       int  signalnumber;

   where:
       signalnumber  The signal whose blocked state is to be cleared

DESCRIPTION
       Sigpause removes the specified signal from the set of signals blocked
       from presentation and then suspends the caller until a signal is
       caught.

       This function is exactly equivalent to the system call sigrelse
       followed by pause.

ACCESS CONTROL
       None.

RETURN VALUE
       -1     An error occurred.  errno is set to indicate the error.

DIAGNOSTICS
       Errno may be set to one of the following error codes:

       EINVAL    signalnumber is an illegal signal number or a signal that
                 cannot be unblocked.

       EINTR     A signal interrupted the sigpause operation

SEE ALSO
       berksigpause(2), kill(2), pause(2), sighold(2), sigignore(2),
       signal(2), sigrelse(2), sigset(2).


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