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annotate src/cdrom/macosx/CAGuard.cpp @ 1135:cf6133247d34

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Mac Classic and CodeWarrior patches. --ryan. From: =?ISO-8859-1?Q?Anders_F_Bj=F6rklund?= <afb@algonet.se> Subject: Re: [SDL] Updated Mac patch Date: Tue, 6 Sep 2005 15:21:27 +0200 To: A list for developers using the SDL library <sdl@libsdl.org> Earlier, I wrote: > Updated the previous Mac patch to disable Carbon by default. > Also "fixed" the SDL.spec again, so that it builds on Darwin. > > http://www.algonet.se/~afb/SDL-1.2.9-mac.patch > Also applied fine to SDL12 CVS, when I tried it. > > Haven't completed any new packaging or projects for Xcode/PB, > but it seems to build and install fine here (in development). Tested the new patch to build with old CodeWarrior and MPW, and it seems it needed some hacks with those old headers... Just in case you want to support the archeological versions - here is a small add-on to the above patch, to fix those... http://www.algonet.se/~afb/SDL-1.2.9-classic.patch I couldn't get the old CW5 projects to build without a few modifications - such as deleting the stray old header in: "CWprojects/Support/Carbon/Include/ConditionalMacros.h" ? But I updated both projects to CW6 too and built for Carbon, and it ran all of the Mac test projects without any problems. The MPW file seems to have compiled, with a small order change. As long as you're still shipping the CWProjects and MPWmake with the download, they should probably be updated/fixed ? (another "solution" would of course be to just delete them) I'll post my new projects along with the new Xcode projects later on, along with XML exports of the various .mcp files. (CW5 builds for Classic / "PPC", and CW6 builds for Carbon) It'll be packaged as a part of the next SpriteWorld X release... http://spriteworldx.sourceforge.net/ [Classic/Carbon/Win/X11] --anders
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 08 Sep 2005 06:34:28 +0000
parents de1b2c3063b9
children
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 /*
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23 Note: This file hasn't been modified so technically we have to keep the disclaimer :-(
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24
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25 Copyright: © Copyright 2002 Apple Computer, Inc. All rights reserved.
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26
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27 Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
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28 ("Apple") in consideration of your agreement to the following terms, and your
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29 use, installation, modification or redistribution of this Apple software
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30 constitutes acceptance of these terms. If you do not agree with these terms,
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31 please do not use, install, modify or redistribute this Apple software.
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32
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33 In consideration of your agreement to abide by the following terms, and subject
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34 to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
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35 copyrights in this original Apple software (the "Apple Software"), to use,
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36 reproduce, modify and redistribute the Apple Software, with or without
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37 modifications, in source and/or binary forms; provided that if you redistribute
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38 the Apple Software in its entirety and without modifications, you must retain
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39 this notice and the following text and disclaimers in all such redistributions of
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40 the Apple Software. Neither the name, trademarks, service marks or logos of
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41 Apple Computer, Inc. may be used to endorse or promote products derived from the
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42 Apple Software without specific prior written permission from Apple. Except as
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43 expressly stated in this notice, no other rights or licenses, express or implied,
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44 are granted by Apple herein, including but not limited to any patent rights that
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45 may be infringed by your derivative works or by other works in which the Apple
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46 Software may be incorporated.
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47
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48 The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
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49 WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
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50 WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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51 PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
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52 COMBINATION WITH YOUR PRODUCTS.
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53
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54 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
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55 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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56 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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57 ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
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58 OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
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59 (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
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60 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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61 */
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62 /*=============================================================================
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63 CAGuard.cp
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64
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65 =============================================================================*/
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66
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67 //=============================================================================
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68 // Includes
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69 //=============================================================================
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70
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71 #include <stdio.h>
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72
768
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73 //#define NDEBUG 1
613
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74 #include <assert.h>
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75
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76
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77 #include "CAGuard.h"
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78
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79 //#warning Need a try-based Locker too
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80 //=============================================================================
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81 // CAGuard
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82 //=============================================================================
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83
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84 CAGuard::CAGuard()
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85 {
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86 OSStatus theError = pthread_mutex_init(&mMutex, NULL);
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87 assert(theError == 0);
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88
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89 theError = pthread_cond_init(&mCondVar, NULL);
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90 assert(theError == 0);
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91
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92 mOwner = 0;
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93 }
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94
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95 CAGuard::~CAGuard()
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96 {
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97 pthread_mutex_destroy(&mMutex);
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98 pthread_cond_destroy(&mCondVar);
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99 }
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100
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101 bool CAGuard::Lock()
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102 {
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103 bool theAnswer = false;
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104
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105 if(pthread_self() != mOwner)
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106 {
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107 OSStatus theError = pthread_mutex_lock(&mMutex);
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108 assert(theError == 0);
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109 mOwner = pthread_self();
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110 theAnswer = true;
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111 }
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112
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113 return theAnswer;
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114 }
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115
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116 void CAGuard::Unlock()
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117 {
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118 assert(pthread_self() == mOwner);
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119
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120 mOwner = 0;
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121 OSStatus theError = pthread_mutex_unlock(&mMutex);
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122 assert(theError == 0);
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123 }
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124
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125 bool CAGuard::Try (bool& outWasLocked)
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126 {
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127 bool theAnswer = false;
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128 outWasLocked = false;
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129
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130 if (pthread_self() == mOwner) {
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131 theAnswer = true;
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132 outWasLocked = false;
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133 } else {
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134 OSStatus theError = pthread_mutex_trylock(&mMutex);
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135 if (theError == 0) {
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136 mOwner = pthread_self();
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137 theAnswer = true;
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138 outWasLocked = true;
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139 }
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140 }
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141
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142 return theAnswer;
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143 }
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144
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145 void CAGuard::Wait()
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146 {
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147 assert(pthread_self() == mOwner);
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148
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149 mOwner = 0;
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150
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151 OSStatus theError = pthread_cond_wait(&mCondVar, &mMutex);
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152 assert(theError == 0);
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153 mOwner = pthread_self();
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154 }
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155
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156 void CAGuard::Notify()
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157 {
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158 OSStatus theError = pthread_cond_signal(&mCondVar);
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159 assert(theError == 0);
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160 }