SIGPAUSE(2)                          BSD                           SIGPAUSE(2)



NAME
     sigpause - atomically release blocked signals and wait for interrupt

SYNOPSIS
     sigpause(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 ALSO
     sigblock(2), sigvec(2)