88 lines
1.4 KiB
C
88 lines
1.4 KiB
C
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 2000
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* Sleepycat Software. All rights reserved.
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*/
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#include "db_config.h"
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#ifndef lint
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static const char revid[] = "$Id: util_sig.c,v 1.3 2000/04/28 19:32:00 bostic Exp $";
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#endif /* not lint */
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#ifndef NO_SYSTEM_INCLUDES
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#include <sys/types.h>
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#include <signal.h>
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#endif
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#include "db_int.h"
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#include "common_ext.h"
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static int interrupt;
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static void onint __P((int));
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/*
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* onint --
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* Interrupt signal handler.
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*/
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static void
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onint(signo)
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int signo;
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{
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if ((interrupt = signo) == 0)
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interrupt = SIGINT;
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}
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/*
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* __db_util_siginit --
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*
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* PUBLIC: void __db_util_siginit __P((void));
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*/
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void
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__db_util_siginit()
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{
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/*
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* Initialize the set of signals for which we want to clean up.
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* Generally, we try not to leave the shared regions locked if
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* we can.
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*/
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#ifdef SIGHUP
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(void)signal(SIGHUP, onint);
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#endif
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(void)signal(SIGINT, onint);
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#ifdef SIGPIPE
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(void)signal(SIGPIPE, onint);
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#endif
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(void)signal(SIGTERM, onint);
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}
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/*
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* __db_util_interrupted --
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* Return if interrupted.
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*
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* PUBLIC: int __db_util_interrupted __P((void));
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*/
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int
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__db_util_interrupted()
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{
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return (interrupt != 0);
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}
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/*
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* __db_util_sigresend --
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*
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* PUBLIC: void __db_util_sigresend __P((void));
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*/
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void
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__db_util_sigresend()
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{
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/* Resend any caught signal. */
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if (__db_util_interrupted != 0) {
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(void)signal(interrupt, SIG_DFL);
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(void)raise(interrupt);
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/* NOTREACHED */
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}
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}
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