OpenSolaris Launch

1 files changed, 55 insertions, 0 deletions

diff --git a/usr/src/uts/common/syscall/pause.c b/usr/src/uts/common/syscall/pause.c
new file mode 100644
index 0000000000..3c621859e7
--- /dev/null
+++ b/usr/src/uts/common/syscall/pause.c
@@ -0,0 +1,55 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
+/*	  All Rights Reserved	*/
+
+
+/*
+ * Copyright (c) 1994-2000 by Sun Microsystems, Inc.
+ * All rights reserved.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/sysmacros.h>
+#include <sys/systm.h>
+#include <sys/user.h>
+#include <sys/errno.h>
+#include <sys/proc.h>
+#include <sys/condvar.h>
+#include <sys/debug.h>
+
+/*
+ * Indefinite wait.
+ */
+int
+pause()
+{
+	mutex_enter(&curthread->t_delay_lock);
+	while (cv_wait_sig_swap(&curthread->t_delay_cv,
+	    &curthread->t_delay_lock))
+		;
+	mutex_exit(&curthread->t_delay_lock);
+	return (set_errno(EINTR));
+}