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SIGPAUSE(2) BSD System Calls Manual SIGPAUSE(2) NAME sigpause -- atomically release blocked signals and wait for interrupt LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <signal.h> int sigpause(int sig); DESCRIPTION This interface is made obsolete by sigsuspend(2). Sigpause() assigns sig to the set of masked signals and then waits for a signal to arrive; on return the set of masked signals is restored. Sig is usually 0, indicating that no signals are to be blocked. Sigpause() always terminates by being interrupted, returning -1 with errno set to EINTR. COMPATIBILITY sigpause() now takes a signal value and not a mask. This often appears as a hang in sigpause$UNIX2003 or with sigpause() returning with errno set to EINVAL. Use sigsuspend() with signal masks. SEE ALSO kill(2), sigaction(2), sigblock(2), sigprocmask(2), sigsuspend(2), sigvec(2) HISTORY The sigpause() function call appeared in 4.2BSD and has been deprecated. BSD June 2, 1993 BSD |
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