xref: /onnv-gate/usr/src/cmd/dtrace/demo/sdt/interval.d (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma D option quiet
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate sdt:::callout-start
30*0Sstevel@tonic-gate {
31*0Sstevel@tonic-gate 	self->callout = ((callout_t *)arg0)->c_func;
32*0Sstevel@tonic-gate }
33*0Sstevel@tonic-gate 
34*0Sstevel@tonic-gate fbt::timeout:entry
35*0Sstevel@tonic-gate /self->callout && arg2 <= 100/
36*0Sstevel@tonic-gate {
37*0Sstevel@tonic-gate 	/*
38*0Sstevel@tonic-gate 	 * In this case, we are most interested in interval timeout(9F)s that
39*0Sstevel@tonic-gate 	 * are short.  We therefore do a linear quantization from 0 ticks to
40*0Sstevel@tonic-gate 	 * 100 ticks.  The system clock's frequency ? set by the variable
41*0Sstevel@tonic-gate 	 * "hz" ? defaults to 100, so 100 system clock ticks is one second.
42*0Sstevel@tonic-gate 	 */
43*0Sstevel@tonic-gate 	@callout[self->callout] = lquantize(arg2, 0, 100);
44*0Sstevel@tonic-gate }
45*0Sstevel@tonic-gate 
46*0Sstevel@tonic-gate sdt:::callout-end
47*0Sstevel@tonic-gate {
48*0Sstevel@tonic-gate 	self->callout = NULL;
49*0Sstevel@tonic-gate }
50*0Sstevel@tonic-gate 
51*0Sstevel@tonic-gate END
52*0Sstevel@tonic-gate {
53*0Sstevel@tonic-gate 	printa("%a\n%@d\n\n", @callout);
54*0Sstevel@tonic-gate }
55