diff options
Diffstat (limited to '')
-rw-r--r-- | src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/demo/vars/rtime.d | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/demo/vars/rtime.d b/src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/demo/vars/rtime.d new file mode 100644 index 00000000..e2db52f3 --- /dev/null +++ b/src/VBox/ExtPacks/VBoxDTrace/onnv/cmd/dtrace/demo/vars/rtime.d @@ -0,0 +1,43 @@ +/* + * 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 2005 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +syscall::read:entry +{ + self->t = timestamp; +} + +syscall::read:return +/self->t != 0/ +{ + printf("%d/%d spent %d nsecs in read(2)\n", + pid, tid, timestamp - self->t); + + /* + * We're done with this thread-local variable; assign zero to it to + * allow the DTrace runtime to reclaim the underlying storage. + */ + self->t = 0; +} |