Import changeset

1 files changed, 87 insertions, 0 deletions

diff --git a/bdb/common/util_sig.c b/bdb/common/util_sig.c
new file mode 100644
index 00000000000..6fe0166fe64
--- /dev/null
+++ b/bdb/common/util_sig.c
@@ -0,0 +1,87 @@
+/*-
+ * 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 */
+	}
+}