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 3 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, see <http://www.gnu.org/licenses/>.
17*/
18
19#include "includes.h"
20
21/**
22 * @file dmallocmsg.c
23 *
24 * Glue code to cause dmalloc info to come out when we receive a prod
25 * over samba messaging.
26 **/
27
28#ifdef ENABLE_DMALLOC
29static unsigned long our_dm_mark = 0;
30#endif /* ENABLE_DMALLOC */
31
32
33/**
34 * Respond to a POOL_USAGE message by sending back string form of memory
35 * usage stats.
36 **/
37static void msg_req_dmalloc_mark(struct messaging_context *msg,
38				 void *private_data,
39				 uint32_t msg_type,
40				 struct server_id server_id,
41				 DATA_BLOB *data)
42{
43#ifdef ENABLE_DMALLOC
44	our_dm_mark = dmalloc_mark();
45	DEBUG(2,("Got MSG_REQ_DMALLOC_MARK: mark set\n"));
46#else
47	DEBUG(2,("Got MSG_REQ_DMALLOC_MARK but dmalloc not in this process\n"));
48#endif
49}
50
51
52
53static void msg_req_dmalloc_log_changed(struct messaging_context *msg,
54					void *private_data,
55					uint32_t msg_type,
56					struct server_id server_id,
57					DATA_BLOB *data)
58{
59#ifdef ENABLE_DMALLOC
60	dmalloc_log_changed(our_dm_mark, True, True, True);
61	DEBUG(2,("Got MSG_REQ_DMALLOC_LOG_CHANGED: done\n"));
62#else
63	DEBUG(2,("Got MSG_REQ_DMALLOC_LOG_CHANGED but dmalloc not in this process\n"));
64#endif
65}
66
67
68/**
69 * Register handler for MSG_REQ_POOL_USAGE
70 **/
71void register_dmalloc_msgs(struct messaging_context *msg_ctx)
72{
73	messaging_register(msg_ctx, NULL, MSG_REQ_DMALLOC_MARK,
74			   msg_req_dmalloc_mark);
75	messaging_register(msg_ctx, NULL, MSG_REQ_DMALLOC_LOG_CHANGED,
76			   msg_req_dmalloc_log_changed);
77	DEBUG(2, ("Registered MSG_REQ_DMALLOC_MARK and LOG_CHANGED\n"));
78}
79