1/*
2   Unix SMB/CIFS implementation.
3   Samba mutex/lock functions
4   Copyright (C) Andrew Tridgell 2003
5   Copyright (C) James J Myers 2003
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 3 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program.  If not, see <http://www.gnu.org/licenses/>.
19*/
20#include "includes.h"
21#include "mutex.h"
22
23/**
24 * @file
25 * @brief Mutex utility functions
26 */
27
28/* the registered mutex handlers */
29static struct {
30	const char *name;
31	struct mutex_ops ops;
32} mutex_handlers;
33
34/* read/write lock routines */
35
36
37/**
38  register a set of mutex/rwlock handlers.
39  Should only be called once in the execution of smbd.
40*/
41_PUBLIC_ bool register_mutex_handlers(const char *name, struct mutex_ops *ops)
42{
43	if (mutex_handlers.name != NULL) {
44		/* it's already registered! */
45		DEBUG(2,("mutex handler '%s' already registered - failed '%s'\n",
46			 mutex_handlers.name, name));
47		return false;
48	}
49
50	mutex_handlers.name = name;
51	mutex_handlers.ops = *ops;
52
53	DEBUG(2,("mutex handler '%s' registered\n", name));
54	return true;
55}
56
57