(BSD System Compatibility)
(BSD) automatically release blocked signals and wait for interrupt
/usr/ucb/cc [flag . . . ] file . . .
to the set of masked signals
and then waits for a signal to arrive;
on return the set of masked signals is restored.
is usually 0 to indicate that no
signals are now to be blocked.
always terminates by being interrupted, returning
In normal usage, a signal is blocked using
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
with the mask returned by
© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 25 April 2004