Mercurial > sdl-ios-xcode

annotate src/cdrom/macosx/CAGuard.h @ 803:355632dca928

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Updated SDL HTML documentation
author Sam Lantinga <slouken@libsdl.org>
date Tue, 10 Feb 2004 15:15:40 +0000
parents b8d311d90021
children
rev   line source
613
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
1 /*
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
769
b8d311d90021 Updated copyright information for 2004 (Happy New Year!)
Sam Lantinga <slouken@libsdl.org>
parents: 613
diff changeset
3 Copyright (C) 1997-2004 Sam Lantinga
613
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
4
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
6 modify it under the terms of the GNU Library General Public
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
8 version 2 of the License, or (at your option) any later version.
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
9
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
13 Library General Public License for more details.
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
14
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
15 You should have received a copy of the GNU Library General Public
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
16 License along with this library; if not, write to the Free
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
18
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
19 Sam Lantinga
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
20 slouken@libsdl.org
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
21 */
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
22 /*
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
23 Note: This file hasn't been modified so technically we have to keep the disclaimer :-(
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
24
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
25
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
26 Copyright: © Copyright 2002 Apple Computer, Inc. All rights reserved.
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
27
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
28 Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
29 ("Apple") in consideration of your agreement to the following terms, and your
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
30 use, installation, modification or redistribution of this Apple software
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
31 constitutes acceptance of these terms. If you do not agree with these terms,
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
32 please do not use, install, modify or redistribute this Apple software.
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
33
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
34 In consideration of your agreement to abide by the following terms, and subject
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
35 to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
36 copyrights in this original Apple software (the "Apple Software"), to use,
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
37 reproduce, modify and redistribute the Apple Software, with or without
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
38 modifications, in source and/or binary forms; provided that if you redistribute
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
39 the Apple Software in its entirety and without modifications, you must retain
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
40 this notice and the following text and disclaimers in all such redistributions of
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
41 the Apple Software. Neither the name, trademarks, service marks or logos of
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
42 Apple Computer, Inc. may be used to endorse or promote products derived from the
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
43 Apple Software without specific prior written permission from Apple. Except as
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
44 expressly stated in this notice, no other rights or licenses, express or implied,
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
45 are granted by Apple herein, including but not limited to any patent rights that
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
46 may be infringed by your derivative works or by other works in which the Apple
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
47 Software may be incorporated.
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
48
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
49 The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
50 WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
51 WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
52 PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
53 COMBINATION WITH YOUR PRODUCTS.
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
54
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
55 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
56 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
57 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
58 ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
59 OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
60 (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
61 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
62 */
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
63 /*=============================================================================
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
64 CAGuard.h
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
65
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
66 =============================================================================*/
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
67 #if !defined(__CAGuard_h__)
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
68 #define __CAGuard_h__
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
69
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
70 //=============================================================================
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
71 // Includes
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
72 //=============================================================================
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
73
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
74 #include <CoreAudio/CoreAudioTypes.h>
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
75 #include <pthread.h>
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
76
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
77
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
78 //=============================================================================
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
79 // CAGuard
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
80 //
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
81 // This is your typical mutex with signalling implemented via pthreads.
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
82 // Lock() will return true if and only if the guard is locked on that call.
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
83 // A thread that already has the guard will receive 'false' if it locks it
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
84 // again. Use of the stack-based CAGuard::Locker class is highly recommended
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
85 // to properly manage the recursive nesting. The Wait calls with timeouts
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
86 // will return true if and only if the timeout period expired. They will
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
87 // return false if they receive notification any other way.
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
88 //=============================================================================
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
89
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
90 class CAGuard
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
91 {
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
92
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
93 // Construction/Destruction
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
94 public:
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
95 CAGuard();
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
96 virtual ~CAGuard();
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
97
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
98 // Actions
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
99 public:
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
100 virtual bool Lock();
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
101 virtual void Unlock();
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
102 virtual bool Try(bool& outWasLocked); // returns true if lock is free, false if not
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
103
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
104 virtual void Wait();
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
105
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
106 virtual void Notify();
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
107
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
108 // Implementation
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
109 protected:
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
110 pthread_mutex_t mMutex;
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
111 pthread_cond_t mCondVar;
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
112 pthread_t mOwner;
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
113
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
114 // Helper class to manage taking and releasing recursively
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
115 public:
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
116 class Locker
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
117 {
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
118
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
119 // Construction/Destruction
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
120 public:
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
121 Locker(CAGuard& inGuard) : mGuard(inGuard), mNeedsRelease(false) { mNeedsRelease = mGuard.Lock(); }
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
122 ~Locker() { if(mNeedsRelease) { mGuard.Unlock(); } }
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
123
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
124 private:
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
125 Locker(const Locker&);
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
126 Locker& operator=(const Locker&);
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
127
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
128 // Actions
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
129 public:
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
130 void Wait() { mGuard.Wait(); }
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
131
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
132 void Notify() { mGuard.Notify(); }
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
133
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
134 // Implementation
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
135 private:
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
136 CAGuard& mGuard;
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
137 bool mNeedsRelease;
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
138
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
139 };
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
140
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
141 };
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
142
9c6717a1c66f Added MacOS X CD-ROM audio support (thanks Max and Darrell)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
143 #endif