SIGPAUSE(2)                                                        SIGPAUSE(2)



NAME
       sigpause - atomically release blocked signals and wait for interrupt

SYNOPSIS
       sigpause(sigmask)
       int sigmask;

DESCRIPTION
       _S_i_g_p_a_u_s_e  assigns  _s_i_g_m_a_s_k  to the set of masked signals and then waits
       for a signal to  arrive;  on  return  the  set  of  masked  signals  is
       restored.   _S_i_g_m_a_s_k is usually 0 to indicate that no signals are now to
       be blocked.  _S_i_g_p_a_u_s_e always terminates by being interrupted, returning
       -1 with _e_r_r_n_o set to EINTR.

       In  normal  usage,  a  signal  is blocked using _s_i_g_b_l_o_c_k(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 _s_i_g_p_a_u_s_e with the  mask  returned
       by _s_i_g_b_l_o_c_k.

SEE ALSO
       sigblock(2), sigvec(2)



4th Berkeley Distribution        May 15, 1986                      SIGPAUSE(2)