2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2009 Sam Lantinga
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
10 This library 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 GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "SDL_config.h"
25 Note: This file hasn't been modified so technically we have to keep the disclaimer :-(
28 Copyright: © Copyright 2002 Apple Computer, Inc. All rights reserved.
30 Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
31 ("Apple") in consideration of your agreement to the following terms, and your
32 use, installation, modification or redistribution of this Apple software
33 constitutes acceptance of these terms. If you do not agree with these terms,
34 please do not use, install, modify or redistribute this Apple software.
36 In consideration of your agreement to abide by the following terms, and subject
37 to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
38 copyrights in this original Apple software (the "Apple Software"), to use,
39 reproduce, modify and redistribute the Apple Software, with or without
40 modifications, in source and/or binary forms; provided that if you redistribute
41 the Apple Software in its entirety and without modifications, you must retain
42 this notice and the following text and disclaimers in all such redistributions of
43 the Apple Software. Neither the name, trademarks, service marks or logos of
44 Apple Computer, Inc. may be used to endorse or promote products derived from the
45 Apple Software without specific prior written permission from Apple. Except as
46 expressly stated in this notice, no other rights or licenses, express or implied,
47 are granted by Apple herein, including but not limited to any patent rights that
48 may be infringed by your derivative works or by other works in which the Apple
49 Software may be incorporated.
51 The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
52 WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
53 WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
54 PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
55 COMBINATION WITH YOUR PRODUCTS.
57 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
58 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
59 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
60 ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
61 OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
62 (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
63 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
65 /*=============================================================================
68 =============================================================================*/
69 #if !defined(__CAGuard_h__)
72 /*=============================================================================
74 =============================================================================*/
76 #include <CoreAudio/CoreAudioTypes.h>
80 /*=============================================================================
83 This is your typical mutex with signalling implemented via pthreads.
84 Lock() will return true if and only if the guard is locked on that call.
85 A thread that already has the guard will receive 'false' if it locks it
86 again. Use of the stack-based CAGuard::Locker class is highly recommended
87 to properly manage the recursive nesting. The Wait calls with timeouts
88 will return true if and only if the timeout period expired. They will
89 return false if they receive notification any other way.
90 =============================================================================*/
92 typedef struct S_SDLOSXCAGuard
95 /* Construction/Destruction */
99 int (*Lock)(struct S_SDLOSXCAGuard *cag);
100 void (*Unlock)(struct S_SDLOSXCAGuard *cag);
101 int (*Try)(struct S_SDLOSXCAGuard *cag, int *outWasLocked); /* returns true if lock is free, false if not */
102 void (*Wait)(struct S_SDLOSXCAGuard *cag);
103 void (*Notify)(struct S_SDLOSXCAGuard *cag);
107 pthread_mutex_t mMutex;
108 pthread_cond_t mCondVar;
112 SDLOSXCAGuard *new_SDLOSXCAGuard(void);
113 void delete_SDLOSXCAGuard(SDLOSXCAGuard *cag);