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Annotation of cci/usr/src/man/man2/sigpause.2, revision 1.1.1.1

1.1       root        1: .TH SIGPAUSE 2 "7 July 1983"
                      2: .UC 4
                      3: .SH NAME
                      4: sigpause \- atomically release blocked signals and wait for interrupt
                      5: .SH SYNOPSIS
                      6: .ft B
                      7: sigpause(sigmask)
                      8: .br
                      9: int sigmask;
                     10: .ft R
                     11: .SH DESCRIPTION
                     12: .I Sigpause
                     13: assigns 
                     14: .I sigmask
                     15: to the set of masked signals
                     16: and then waits for a signal to arrive;
                     17: on return the set of masked signals is restored.
                     18: .I Sigmask
                     19: is usually 0 to indicate that no
                     20: signals are now to be blocked.
                     21: .I Sigpause
                     22: always terminates by being interrupted, returning EINTR.
                     23: .PP
                     24: In normal usage, a signal is blocked using
                     25: .IR sigblock (2),
                     26: to begin a critical section, variables modified on the occurance
                     27: of the signal are examined to determine that there is no work
                     28: to be done, and the process pauses awaiting work by using
                     29: .I sigpause
                     30: with the mask returned by
                     31: .IR sigblock .
                     32: .SH SEE ALSO
                     33: sigblock(2), sigvec(2)

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