1235368Sgnn#!/usr/sbin/dtrace -s
2235368Sgnn/*
3235368Sgnn * putnexts.d - stream putnext() tracing with stacks. Solaris, DTrace.
4235368Sgnn *
5235368Sgnn * This shows who is calling putnext() to who, by listing the destination
6235368Sgnn * queue and the calling stack, by frequency count. This is especially useful
7235368Sgnn * for understanding streams based frameworks, such as areas of the Solaris
8235368Sgnn * TCP/IP stack.
9235368Sgnn *
10235368Sgnn * $Id: putnexts.d 14 2007-09-11 08:03:35Z brendan $
11235368Sgnn *
12235368Sgnn * USAGE:	putnext.d
13235368Sgnn *
14235368Sgnn * BASED ON: /usr/demo/dtrace/putnext.d
15235368Sgnn *
16235368Sgnn * PORTIONS: Copyright (c) 2007 Brendan Gregg.
17235368Sgnn *
18235368Sgnn * CDDL HEADER START
19235368Sgnn *
20235368Sgnn *  The contents of this file are subject to the terms of the
21235368Sgnn *  Common Development and Distribution License, Version 1.0 only
22235368Sgnn *  (the "License").  You may not use this file except in compliance
23235368Sgnn *  with the License.
24235368Sgnn *
25235368Sgnn *  You can obtain a copy of the license at Docs/cddl1.txt
26235368Sgnn *  or http://www.opensolaris.org/os/licensing.
27235368Sgnn *  See the License for the specific language governing permissions
28235368Sgnn *  and limitations under the License.
29235368Sgnn *
30235368Sgnn * CDDL HEADER END
31235368Sgnn *
32235368Sgnn * 12-Jun-2005  Brendan Gregg   Created this.
33235368Sgnn */
34235368Sgnn
35235368Sgnnfbt::putnext:entry
36235368Sgnn{
37235368Sgnn	@[stringof(args[0]->q_qinfo->qi_minfo->mi_idname), stack(5)] = count();
38235368Sgnn}
39