author | William Roberts <williamr@symbian.org> |
Fri, 07 Aug 2009 11:20:16 +0100 | |
changeset 7 | b016402e601c |
parent 1 | 2fb8b9db1c86 |
permissions | -rw-r--r-- |
1
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1 |
/* |
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SDL - Simple DirectMedia Layer |
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Copyright (C) 1997-2004 Sam Lantinga |
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|
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Library General Public |
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License as published by the Free Software Foundation; either |
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version 2 of the License, or (at your option) any later version. |
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|
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Library General Public License for more details. |
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|
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You should have received a copy of the GNU Library General Public |
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License along with this library; if not, write to the Free |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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|
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Sam Lantinga |
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slouken@libsdl.org |
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*/ |
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#include "SDL_config.h" |
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|
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/* |
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Note: This file hasn't been modified so technically we have to keep the disclaimer :-( |
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|
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|
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Copyright: © Copyright 2002 Apple Computer, Inc. All rights reserved. |
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|
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Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. |
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("Apple") in consideration of your agreement to the following terms, and your |
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use, installation, modification or redistribution of this Apple software |
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constitutes acceptance of these terms. If you do not agree with these terms, |
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please do not use, install, modify or redistribute this Apple software. |
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|
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In consideration of your agreement to abide by the following terms, and subject |
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to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs |
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copyrights in this original Apple software (the "Apple Software"), to use, |
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reproduce, modify and redistribute the Apple Software, with or without |
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modifications, in source and/or binary forms; provided that if you redistribute |
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the Apple Software in its entirety and without modifications, you must retain |
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this notice and the following text and disclaimers in all such redistributions of |
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the Apple Software. Neither the name, trademarks, service marks or logos of |
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Apple Computer, Inc. may be used to endorse or promote products derived from the |
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Apple Software without specific prior written permission from Apple. Except as |
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expressly stated in this notice, no other rights or licenses, express or implied, |
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are granted by Apple herein, including but not limited to any patent rights that |
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may be infringed by your derivative works or by other works in which the Apple |
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Software may be incorporated. |
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|
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The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO |
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WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED |
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WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN |
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COMBINATION WITH YOUR PRODUCTS. |
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|
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IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR |
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
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GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION |
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OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT |
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(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN |
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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/*============================================================================= |
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CAGuard.h |
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|
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=============================================================================*/ |
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#if !defined(__CAGuard_h__) |
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#define __CAGuard_h__ |
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|
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/*============================================================================= |
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Includes |
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=============================================================================*/ |
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75 |
|
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#include <CoreAudio/CoreAudioTypes.h> |
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#include <pthread.h> |
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|
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|
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/*============================================================================= |
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CAGuard |
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|
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This is your typical mutex with signalling implemented via pthreads. |
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Lock() will return true if and only if the guard is locked on that call. |
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A thread that already has the guard will receive 'false' if it locks it |
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again. Use of the stack-based CAGuard::Locker class is highly recommended |
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to properly manage the recursive nesting. The Wait calls with timeouts |
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will return true if and only if the timeout period expired. They will |
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return false if they receive notification any other way. |
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=============================================================================*/ |
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91 |
|
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typedef struct S_SDLOSXCAGuard |
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{ |
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94 |
|
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/* Construction/Destruction */ |
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/*public:*/ |
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/* Actions */ |
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/*public:*/ |
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int (*Lock)(struct S_SDLOSXCAGuard *cag); |
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void (*Unlock)(struct S_SDLOSXCAGuard *cag); |
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int (*Try)(struct S_SDLOSXCAGuard *cag, int *outWasLocked); /* returns true if lock is free, false if not */ |
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void (*Wait)(struct S_SDLOSXCAGuard *cag); |
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void (*Notify)(struct S_SDLOSXCAGuard *cag); |
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104 |
|
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/* Implementation */ |
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106 |
/*protected:*/ |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
107 |
pthread_mutex_t mMutex; |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
108 |
pthread_cond_t mCondVar; |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
109 |
pthread_t mOwner; |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
110 |
} SDLOSXCAGuard; |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
111 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
112 |
SDLOSXCAGuard *new_SDLOSXCAGuard(void); |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
113 |
void delete_SDLOSXCAGuard(SDLOSXCAGuard *cag); |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
114 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
115 |
#endif |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
116 |