1/*
2   samba -- Unix SMB/CIFS implementation.
3   Copyright (C) 2002 by Martin Pool
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 2 of the License, or
8   (at your option) any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program; if not, write to the Free Software
17   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18*/
19
20#include "includes.h"
21
22/**
23 * @file dmallocmsg.c
24 *
25 * Glue code to cause dmalloc info to come out when we receive a prod
26 * over samba messaging.
27 **/
28
29#ifdef ENABLE_DMALLOC
30static unsigned long our_dm_mark = 0;
31#endif /* ENABLE_DMALLOC */
32
33
34/**
35 * Respond to a POOL_USAGE message by sending back string form of memory
36 * usage stats.
37 **/
38static void msg_req_dmalloc_mark(int UNUSED(msg_type), pid_t UNUSED(src_pid),
39			  void *UNUSED(buf), size_t UNUSED(len))
40{
41#ifdef ENABLE_DMALLOC
42	our_dm_mark = dmalloc_mark();
43	DEBUG(2,("Got MSG_REQ_DMALLOC_MARK: mark set\n"));
44#else
45	DEBUG(2,("Got MSG_REQ_DMALLOC_MARK but dmalloc not in this process\n"));
46#endif
47}
48
49
50
51static void msg_req_dmalloc_log_changed(int UNUSED(msg_type),
52					pid_t UNUSED(src_pid),
53					void *UNUSED(buf), size_t UNUSED(len))
54{
55#ifdef ENABLE_DMALLOC
56	dmalloc_log_changed(our_dm_mark, True, True, True);
57	DEBUG(2,("Got MSG_REQ_DMALLOC_LOG_CHANGED: done\n"));
58#else
59	DEBUG(2,("Got MSG_REQ_DMALLOC_LOG_CHANGED but dmalloc not in this process\n"));
60#endif
61}
62
63
64/**
65 * Register handler for MSG_REQ_POOL_USAGE
66 **/
67void register_dmalloc_msgs(void)
68{
69	message_register(MSG_REQ_DMALLOC_MARK, msg_req_dmalloc_mark);
70	message_register(MSG_REQ_DMALLOC_LOG_CHANGED, msg_req_dmalloc_log_changed);
71	DEBUG(2, ("Registered MSG_REQ_DMALLOC_MARK and LOG_CHANGED\n"));
72}
73