xref: /freebsd-src/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/docsExamples/rwinfo.d (revision 2be1a816b9ff69588e55be0a84cbe2a31efc0f2f)
1*2be1a816SJohn Birrell /*
2*2be1a816SJohn Birrell  * CDDL HEADER START
3*2be1a816SJohn Birrell  *
4*2be1a816SJohn Birrell  * The contents of this file are subject to the terms of the
5*2be1a816SJohn Birrell  * Common Development and Distribution License (the "License").
6*2be1a816SJohn Birrell  * You may not use this file except in compliance with the License.
7*2be1a816SJohn Birrell  *
8*2be1a816SJohn Birrell  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9*2be1a816SJohn Birrell  * or http://www.opensolaris.org/os/licensing.
10*2be1a816SJohn Birrell  * See the License for the specific language governing permissions
11*2be1a816SJohn Birrell  * and limitations under the License.
12*2be1a816SJohn Birrell  *
13*2be1a816SJohn Birrell  * When distributing Covered Code, include this CDDL HEADER in each
14*2be1a816SJohn Birrell  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15*2be1a816SJohn Birrell  * If applicable, add the following below this CDDL HEADER, with the
16*2be1a816SJohn Birrell  * fields enclosed by brackets "[]" replaced with your own identifying
17*2be1a816SJohn Birrell  * information: Portions Copyright [yyyy] [name of copyright owner]
18*2be1a816SJohn Birrell  *
19*2be1a816SJohn Birrell  * CDDL HEADER END
20*2be1a816SJohn Birrell  */
21*2be1a816SJohn Birrell 
22*2be1a816SJohn Birrell /*
23*2be1a816SJohn Birrell  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24*2be1a816SJohn Birrell  * Use is subject to license terms.
25*2be1a816SJohn Birrell  */
26*2be1a816SJohn Birrell 
27*2be1a816SJohn Birrell #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*2be1a816SJohn Birrell 
29*2be1a816SJohn Birrell /*
30*2be1a816SJohn Birrell  * ASSERTION:
31*2be1a816SJohn Birrell  *	Verify doc example 7-1
32*2be1a816SJohn Birrell  *
33*2be1a816SJohn Birrell  * SECTION:
34*2be1a816SJohn Birrell  *	DocExamples/rwinfo
35*2be1a816SJohn Birrell  */
36*2be1a816SJohn Birrell 
37*2be1a816SJohn Birrell 
38*2be1a816SJohn Birrell #pragma D option quiet
39*2be1a816SJohn Birrell 
40*2be1a816SJohn Birrell struct callinfo {
41*2be1a816SJohn Birrell 	uint64_t ts;
42*2be1a816SJohn Birrell 	uint64_t elapsed;
43*2be1a816SJohn Birrell 	uint64_t calls;
44*2be1a816SJohn Birrell 	size_t maxbytes;
45*2be1a816SJohn Birrell };
46*2be1a816SJohn Birrell 
47*2be1a816SJohn Birrell struct callinfo i[string];
48*2be1a816SJohn Birrell 
49*2be1a816SJohn Birrell syscall::read:entry,
50*2be1a816SJohn Birrell syscall::write:entry
51*2be1a816SJohn Birrell /pid == 100551/
52*2be1a816SJohn Birrell {
53*2be1a816SJohn Birrell 	i[probefunc].ts = timestamp;
54*2be1a816SJohn Birrell 	i[probefunc].calls++;
55*2be1a816SJohn Birrell 	i[probefunc].maxbytes = arg2 > i[probefunc].maxbytes ?
56*2be1a816SJohn Birrell 	    arg2 : i[probefunc].maxbytes;
57*2be1a816SJohn Birrell }
58*2be1a816SJohn Birrell 
59*2be1a816SJohn Birrell syscall::read:return,
60*2be1a816SJohn Birrell syscall::write:return
61*2be1a816SJohn Birrell /i[probefunc].ts != 0 && pid == 100551/
62*2be1a816SJohn Birrell {
63*2be1a816SJohn Birrell 	i[probefunc].elapsed += timestamp - i[probefunc].ts;
64*2be1a816SJohn Birrell }
65*2be1a816SJohn Birrell 
66*2be1a816SJohn Birrell END
67*2be1a816SJohn Birrell {
68*2be1a816SJohn Birrell 	printf("      calls  max bytes  elapsed nsecs\n");
69*2be1a816SJohn Birrell 	printf("-----  -----  ---------  -------------\n");
70*2be1a816SJohn Birrell 	printf("   read %5d  %9d   %d\n", i["read"].calls,
71*2be1a816SJohn Birrell 	    i["read"].maxbytes, i["read"].elapsed);
72*2be1a816SJohn Birrell 	printf("   write %5d  %9d   %d\n", i["write"].calls,
73*2be1a816SJohn Birrell 	    i["write"].maxbytes, i["write"].elapsed);
74*2be1a816SJohn Birrell }
75