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util_sig.c
Package: mysql-3.23.35.tar.gz [view]
Upload User: tsgydb
Upload Date: 2007-04-14
Package Size: 10674k
Code Size: 1k
Category:
MySQL
Development Platform:
Visual C++
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 2000
- * Sleepycat Software. All rights reserved.
- */
- #include "db_config.h"
- #ifndef lint
- static const char revid[] = "$Id: util_sig.c,v 1.3 2000/04/28 19:32:00 bostic Exp $";
- #endif /* not lint */
- #ifndef NO_SYSTEM_INCLUDES
- #include <sys/types.h>
- #include <signal.h>
- #endif
- #include "db_int.h"
- #include "common_ext.h"
- static int interrupt;
- static void onint __P((int));
- /*
- * onint --
- * Interrupt signal handler.
- */
- static void
- onint(signo)
- int signo;
- {
- if ((interrupt = signo) == 0)
- interrupt = SIGINT;
- }
- /*
- * __db_util_siginit --
- *
- * PUBLIC: void __db_util_siginit __P((void));
- */
- void
- __db_util_siginit()
- {
- /*
- * Initialize the set of signals for which we want to clean up.
- * Generally, we try not to leave the shared regions locked if
- * we can.
- */
- #ifdef SIGHUP
- (void)signal(SIGHUP, onint);
- #endif
- (void)signal(SIGINT, onint);
- #ifdef SIGPIPE
- (void)signal(SIGPIPE, onint);
- #endif
- (void)signal(SIGTERM, onint);
- }
- /*
- * __db_util_interrupted --
- * Return if interrupted.
- *
- * PUBLIC: int __db_util_interrupted __P((void));
- */
- int
- __db_util_interrupted()
- {
- return (interrupt != 0);
- }
- /*
- * __db_util_sigresend --
- *
- * PUBLIC: void __db_util_sigresend __P((void));
- */
- void
- __db_util_sigresend()
- {
- /* Resend any caught signal. */
- if (__db_util_interrupted != 0) {
- (void)signal(interrupt, SIG_DFL);
- (void)raise(interrupt);
- /* NOTREACHED */
- }
- }