1/*
2 * Copyright (c) 1999-2000, Eric Moon.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions, and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions, and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * 3. The name of the author may not be used to endorse or promote products
17 *    derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
27 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31
32// SimpleLockable.h
33// * PURPOSE
34//   Basic BLocker implementation of ILockable.
35//
36// * HISTORY
37//   e.moon		7jul99		Cortex rework.
38//   e.moon		13apr99		Begun (beDub)
39
40#ifndef __SimpleLockable_H__
41#define __SimpleLockable_H__
42
43#include "ILockable.h"
44#include <Locker.h>
45
46#include "cortex_defs.h"
47__BEGIN_CORTEX_NAMESPACE
48
49class SimpleLockable :
50	public ILockable {
51
52public:						// *** ctor
53	virtual ~SimpleLockable() {}
54	SimpleLockable() {}
55	SimpleLockable(const char* name) : m_lock(name) {}
56
57public:						// *** ILockable impl.
58	virtual bool lock(
59		lock_t type=WRITE,
60		bigtime_t timeout=B_INFINITE_TIMEOUT) {
61
62		return m_lock.LockWithTimeout(timeout) == B_OK;
63	}
64
65	virtual bool unlock(
66		lock_t type=WRITE) {
67		m_lock.Unlock();
68		return true;
69	}
70
71	virtual bool isLocked(
72		lock_t type=WRITE) const {
73		return m_lock.IsLocked();
74	}
75
76protected:					// members
77	mutable BLocker		m_lock;
78};
79
80__END_CORTEX_NAMESPACE
81#endif /*__SimpleLockable_H__*/
82