diff options
Diffstat (limited to 'distrib/sdl-1.2.15/src/cdrom/macosx/SDLOSXCAGuard.h')
| -rw-r--r-- | distrib/sdl-1.2.15/src/cdrom/macosx/SDLOSXCAGuard.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/cdrom/macosx/SDLOSXCAGuard.h b/distrib/sdl-1.2.15/src/cdrom/macosx/SDLOSXCAGuard.h new file mode 100644 index 0000000..f22c695 --- /dev/null +++ b/distrib/sdl-1.2.15/src/cdrom/macosx/SDLOSXCAGuard.h @@ -0,0 +1,116 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2012 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" + +/* + Note: This file hasn't been modified so technically we have to keep the disclaimer :-( + + + Copyright: © Copyright 2002 Apple Computer, Inc. All rights reserved. + + Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. + ("Apple") in consideration of your agreement to the following terms, and your + use, installation, modification or redistribution of this Apple software + constitutes acceptance of these terms. If you do not agree with these terms, + please do not use, install, modify or redistribute this Apple software. + + In consideration of your agreement to abide by the following terms, and subject + to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs + copyrights in this original Apple software (the "Apple Software"), to use, + reproduce, modify and redistribute the Apple Software, with or without + modifications, in source and/or binary forms; provided that if you redistribute + the Apple Software in its entirety and without modifications, you must retain + this notice and the following text and disclaimers in all such redistributions of + the Apple Software. Neither the name, trademarks, service marks or logos of + Apple Computer, Inc. may be used to endorse or promote products derived from the + Apple Software without specific prior written permission from Apple. Except as + expressly stated in this notice, no other rights or licenses, express or implied, + are granted by Apple herein, including but not limited to any patent rights that + may be infringed by your derivative works or by other works in which the Apple + Software may be incorporated. + + The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO + WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED + WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR + PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN + COMBINATION WITH YOUR PRODUCTS. + + IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION + OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT + (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN + ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ +/*============================================================================= + CAGuard.h + +=============================================================================*/ +#if !defined(__CAGuard_h__) +#define __CAGuard_h__ + +/*============================================================================= + Includes + =============================================================================*/ + +#include <CoreAudio/CoreAudioTypes.h> +#include <pthread.h> + + +/*============================================================================= + CAGuard + + This is your typical mutex with signalling implemented via pthreads. + Lock() will return true if and only if the guard is locked on that call. + A thread that already has the guard will receive 'false' if it locks it + again. Use of the stack-based CAGuard::Locker class is highly recommended + to properly manage the recursive nesting. The Wait calls with timeouts + will return true if and only if the timeout period expired. They will + return false if they receive notification any other way. + =============================================================================*/ + +typedef struct S_SDLOSXCAGuard +{ + +/* Construction/Destruction */ +/*public:*/ +/* Actions */ +/*public:*/ + int (*Lock)(struct S_SDLOSXCAGuard *cag); + void (*Unlock)(struct S_SDLOSXCAGuard *cag); + int (*Try)(struct S_SDLOSXCAGuard *cag, int *outWasLocked); /* returns true if lock is free, false if not */ + void (*Wait)(struct S_SDLOSXCAGuard *cag); + void (*Notify)(struct S_SDLOSXCAGuard *cag); + +/* Implementation */ +/*protected:*/ + pthread_mutex_t mMutex; + pthread_cond_t mCondVar; + pthread_t mOwner; +} SDLOSXCAGuard; + +SDLOSXCAGuard *new_SDLOSXCAGuard(void); +void delete_SDLOSXCAGuard(SDLOSXCAGuard *cag); + +#endif + |