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annotate src/atomic/linux/SDL_atomic.c @ 3283:1ed5d432e468

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Removed outdated Atari support
author Sam Lantinga <slouken@libsdl.org>
date Sun, 20 Sep 2009 04:15:19 +0000
parents 72b542f34739
children 6fe620d7ce92
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 Sam Lantinga
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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 Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 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 Lesser General Public License for more details.
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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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 Contributed by Bob Pendleton, bob@pendleton.com
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23 */
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24
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25 #include "SDL_stdinc.h"
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26 #include "SDL_atomic.h"
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28 #include "SDL_error.h"
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29
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30 /*
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31 This file provides 32, and 64 bit atomic operations. If the
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32 operations are provided by the native hardware and operating system
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33 they are used. If they are not then the operations are emulated
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34 using the SDL spin lock operations. If spin lock can not be
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35 implemented then these functions must fail.
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36 */
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37
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38 /*
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39 LINUX/GCC VERSION.
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40
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41 This version of the code assumes support of the atomic builtins as
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42 documented at gcc.gnu.org/onlinedocs/gcc/Atomic-Builtins.html This
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43 code should work on any modern x86 or other processor supported by
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44 GCC.
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45
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46 Some processors will only support some of these operations so
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47 #ifdefs will have to be added as incompatibilities are discovered
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48 */
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49
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50 /*
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51 Native spinlock routines.
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52 */
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54 void
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55 SDL_AtomicLock(SDL_SpinLock *lock)
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56 {
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57 while (0 != __sync_lock_test_and_set(lock, 1))
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58 {
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59 }
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60 }
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61
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62 void
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63 SDL_AtomicUnlock(SDL_SpinLock *lock)
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64 {
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65 __sync_lock_test_and_set(lock, 0);
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66 }
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67
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68 /*
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69 Note that platform specific versions can be built from this version
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70 by changing the #undefs to #defines and adding platform specific
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71 code.
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72 */
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73
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74 #define nativeTestThenSet32
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75 #define nativeClear32
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76 #define nativeFetchThenIncrement32
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77 #define nativeFetchThenDecrement32
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78 #define nativeFetchThenAdd32
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79 #define nativeFetchThenSubtract32
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80 #define nativeIncrementThenFetch32
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81 #define nativeDecrementThenFetch32
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82 #define nativeAddThenFetch32
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83 #define nativeSubtractThenFetch32
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84
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85 #define nativeTestThenSet64
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86 #define nativeClear64
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87 #define nativeFetchThenIncrement64
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88 #define nativeFetchThenDecrement64
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89 #define nativeFetchThenAdd64
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90 #define nativeFetchThenSubtract64
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91 #define nativeIncrementThenFetch64
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92 #define nativeDecrementThenFetch64
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93 #define nativeAddThenFetch64
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94 #define nativeSubtractThenFetch64
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95
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96 /*
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97 If any of the operations are not provided then we must emulate some
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98 of them. That means we need a nice implementation of spin locks
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99 that avoids the "one big lock" problem. We use a vector of spin
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100 locks and pick which one to use based on the address of the operand
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101 of the function.
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102
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103 To generate the index of the lock we first shift by 3 bits to get
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104 rid on the zero bits that result from 32 and 64 bit allignment of
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105 data. We then mask off all but 5 bits and use those 5 bits as an
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106 index into the table.
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107
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108 Picking the lock this way insures that accesses to the same data at
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109 the same time will go to the same lock. OTOH, accesses to different
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110 data have only a 1/32 chance of hitting the same lock. That should
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111 pretty much eliminate the chances of several atomic operations on
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112 different data from waiting on the same "big lock". If it isn't
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113 then the table of locks can be expanded to a new size so long as
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114 the new size if a power of two.
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115 */
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116
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117 static SDL_SpinLock locks[32] = {
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118 0, 0, 0, 0, 0, 0, 0, 0,
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
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119 0, 0, 0, 0, 0, 0, 0, 0,
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
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120 0, 0, 0, 0, 0, 0, 0, 0,
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121 0, 0, 0, 0, 0, 0, 0, 0,
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122 };
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
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123
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
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124 static __inline__ void
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125 privateWaitLock(volatile void *ptr)
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126 {
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127 #if SIZEOF_VOIDP == 4
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128 Uint32 index = ((((Uint32)ptr) >> 3) & 0x1f);
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129 #elif SIZEOF_VOIDP == 8
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130 Uint64 index = ((((Uint64)ptr) >> 3) & 0x1f);
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131 #endif
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132
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133 SDL_AtomicLock(&locks[index]);
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134 }
3202
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135
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136 static __inline__ void
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137 privateUnlock(volatile void *ptr)
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138 {
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
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139 #if SIZEOF_VOIDP == 4
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140 Uint32 index = ((((Uint32)ptr) >> 3) & 0x1f);
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141 #elif SIZEOF_VOIDP == 8
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142 Uint64 index = ((((Uint64)ptr) >> 3) & 0x1f);
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143 #endif
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144
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145 SDL_AtomicUnlock(&locks[index]);
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146 }
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147
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148 /* 32 bit atomic operations */
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149
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150 SDL_bool
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151 SDL_AtomicTestThenSet32(volatile Uint32 * ptr)
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152 {
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153 #ifdef nativeTestThenSet32
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154 return 0 == __sync_lock_test_and_set(ptr, 1);
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155 #else
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156 SDL_bool result = SDL_FALSE;
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157
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158 privateWaitLock(ptr);
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159 result = (*ptr == 0);
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160 if (result)
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161 {
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162 *ptr = 1;
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163 }
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164 privateUnlock(ptr);
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165
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166 return result;
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167 #endif
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168 }
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169
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170 void
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171 SDL_AtomicClear32(volatile Uint32 * ptr)
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172 {
3202
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173 #ifdef nativeClear32
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174 __sync_lock_test_and_set(ptr, 0);
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175 return;
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176 #else
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177 privateWaitLock(ptr);
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178 *ptr = 0;
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179 privateUnlock(ptr);
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180
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181 return;
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182 #endif
3199
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183 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
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184
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
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185 Uint32
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186 SDL_AtomicFetchThenIncrement32(volatile Uint32 * ptr)
3199
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187 {
3202
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188 #ifdef nativeFetchThenIncrement32
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189 return __sync_fetch_and_add(ptr, 1);
3202
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diff changeset
190 #else
3212
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191 Uint32 tmp = 0;
3202
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192
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193 privateWaitLock(ptr);
3202
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194 tmp = *ptr;
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195 (*ptr)+= 1;
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196 privateUnlock(ptr);
3202
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197
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
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198 return tmp;
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diff changeset
199 #endif
3199
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200 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
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parents:
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201
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
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202 Uint32
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203 SDL_AtomicFetchThenDecrement32(volatile Uint32 * ptr)
3199
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204 {
3202
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diff changeset
205 #ifdef nativeFetchThenDecrement32
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206 return __sync_fetch_and_sub(ptr, 1);
3202
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207 #else
3212
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diff changeset
208 Uint32 tmp = 0;
3202
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209
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diff changeset
210 privateWaitLock(ptr);
3202
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211 tmp = *ptr;
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212 (*ptr) -= 1;
3261
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diff changeset
213 privateUnlock(ptr);
3202
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214
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215 return tmp;
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diff changeset
216 #endif
3199
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217 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
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218
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
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219 Uint32
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diff changeset
220 SDL_AtomicFetchThenAdd32(volatile Uint32 * ptr, Uint32 value)
3199
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221 {
3202
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diff changeset
222 #ifdef nativeFetchThenAdd32
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223 return __sync_fetch_and_add(ptr, value);
3202
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224 #else
3212
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225 Uint32 tmp = 0;
3202
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226
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diff changeset
227 privateWaitLock(ptr);
3202
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228 tmp = *ptr;
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229 (*ptr)+= value;
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diff changeset
230 privateUnlock(ptr);
3202
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diff changeset
231
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diff changeset
232 return tmp;
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diff changeset
233 #endif
3199
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234 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
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diff changeset
235
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
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236 Uint32
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diff changeset
237 SDL_AtomicFetchThenSubtract32(volatile Uint32 * ptr, Uint32 value)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
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diff changeset
238 {
3202
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Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
239 #ifdef nativeFetchThenSubtract32
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
240 return __sync_fetch_and_sub(ptr, value);
3202
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Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
241 #else
3212
759032c318d8 This is a cosmetic fix, I found a stupid typo
Bob Pendleton <bob@pendleton.com>
parents: 3202
diff changeset
242 Uint32 tmp = 0;
3202
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Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
243
3261
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Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
244 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
245 tmp = *ptr;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
246 (*ptr)-= value;
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
247 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
248
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
249 return tmp;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
250 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
251 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
252
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
253 Uint32
3216
48a80f2a7ff2 volitile... duh, yeah the variable need to be labeled volitile
Bob Pendleton <bob@pendleton.com>
parents: 3212
diff changeset
254 SDL_AtomicIncrementThenFetch32(volatile Uint32 * ptr)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
255 {
3202
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Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
256 #ifdef nativeIncrementThenFetch32
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
257 return __sync_add_and_fetch(ptr, 1);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
258 #else
3212
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Bob Pendleton <bob@pendleton.com>
parents: 3202
diff changeset
259 Uint32 tmp = 0;
3202
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Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
260
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
261 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
262 (*ptr)+= 1;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
263 tmp = *ptr;
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
264 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
265
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
266 return tmp;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
267 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
268 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
269
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
270 Uint32
3216
48a80f2a7ff2 volitile... duh, yeah the variable need to be labeled volitile
Bob Pendleton <bob@pendleton.com>
parents: 3212
diff changeset
271 SDL_AtomicDecrementThenFetch32(volatile Uint32 * ptr)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
272 {
3202
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Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
273 #ifdef nativeDecrementThenFetch32
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
274 return __sync_sub_and_fetch(ptr, 1);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
275 #else
3212
759032c318d8 This is a cosmetic fix, I found a stupid typo
Bob Pendleton <bob@pendleton.com>
parents: 3202
diff changeset
276 Uint32 tmp = 0;
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
277
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
278 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
279 (*ptr)-= 1;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
280 tmp = *ptr;
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
281 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
282
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
283 return tmp;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
284 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
285 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
286
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
287 Uint32
3216
48a80f2a7ff2 volitile... duh, yeah the variable need to be labeled volitile
Bob Pendleton <bob@pendleton.com>
parents: 3212
diff changeset
288 SDL_AtomicAddThenFetch32(volatile Uint32 * ptr, Uint32 value)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
289 {
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
290 #ifdef nativeAddThenFetch32
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
291 return __sync_add_and_fetch(ptr, value);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
292 #else
3212
759032c318d8 This is a cosmetic fix, I found a stupid typo
Bob Pendleton <bob@pendleton.com>
parents: 3202
diff changeset
293 Uint32 tmp = 0;
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
294
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
295 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
296 (*ptr)+= value;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
297 tmp = *ptr;
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
298 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
299
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
300 return tmp;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
301 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
302 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
303
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
304 Uint32
3216
48a80f2a7ff2 volitile... duh, yeah the variable need to be labeled volitile
Bob Pendleton <bob@pendleton.com>
parents: 3212
diff changeset
305 SDL_AtomicSubtractThenFetch32(volatile Uint32 * ptr, Uint32 value)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
306 {
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
307 #ifdef nativeSubtractThenFetch32
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
308 return __sync_sub_and_fetch(ptr, value);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
309 #else
3212
759032c318d8 This is a cosmetic fix, I found a stupid typo
Bob Pendleton <bob@pendleton.com>
parents: 3202
diff changeset
310 Uint32 tmp = 0;
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
311
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
312 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
313 (*ptr)-= value;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
314 tmp = *ptr;
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
315 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
316
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
317 return tmp;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
318 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
319 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
320
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
321 /* 64 bit atomic operations */
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
322 #ifdef SDL_HAS_64BIT_TYPE
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
323
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
324 SDL_bool
3216
48a80f2a7ff2 volitile... duh, yeah the variable need to be labeled volitile
Bob Pendleton <bob@pendleton.com>
parents: 3212
diff changeset
325 SDL_AtomicTestThenSet64(volatile Uint64 * ptr)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
326 {
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
327 #ifdef nativeTestThenSet64
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
328 return 0 == __sync_lock_test_and_set(ptr, 1);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
329 #else
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
330 SDL_bool result = SDL_FALSE;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
331
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
332 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
333 result = (*ptr == 0);
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
334 if (result)
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
335 {
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
336 *ptr = 1;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
337 }
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
338 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
339
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
340 return result;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
341 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
342 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
343
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
344 void
3216
48a80f2a7ff2 volitile... duh, yeah the variable need to be labeled volitile
Bob Pendleton <bob@pendleton.com>
parents: 3212
diff changeset
345 SDL_AtomicClear64(volatile Uint64 * ptr)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
346 {
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
347 #ifdef nativeClear64
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
348 __sync_lock_test_and_set(ptr, 0);
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
349 return;
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
350 #else
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
351 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
352 *ptr = 0;
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
353 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
354
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
355 return;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
356 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
357 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
358
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
359 Uint64
3216
48a80f2a7ff2 volitile... duh, yeah the variable need to be labeled volitile
Bob Pendleton <bob@pendleton.com>
parents: 3212
diff changeset
360 SDL_AtomicFetchThenIncrement64(volatile Uint64 * ptr)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
361 {
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
362 #ifdef nativeFetchThenIncrement64
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
363 return __sync_fetch_and_add(ptr, 1);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
364 #else
3212
759032c318d8 This is a cosmetic fix, I found a stupid typo
Bob Pendleton <bob@pendleton.com>
parents: 3202
diff changeset
365 Uint64 tmp = 0;
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
366
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
367 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
368 tmp = *ptr;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
369 (*ptr)+= 1;
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
370 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
371
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
372 return tmp;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
373 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
374 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
375
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
376 Uint64
3216
48a80f2a7ff2 volitile... duh, yeah the variable need to be labeled volitile
Bob Pendleton <bob@pendleton.com>
parents: 3212
diff changeset
377 SDL_AtomicFetchThenDecrement64(volatile Uint64 * ptr)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
378 {
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
379 #ifdef nativeFetchThenDecrement64
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
380 return __sync_fetch_and_sub(ptr, 1);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
381 #else
3212
759032c318d8 This is a cosmetic fix, I found a stupid typo
Bob Pendleton <bob@pendleton.com>
parents: 3202
diff changeset
382 Uint64 tmp = 0;
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
383
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
384 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
385 tmp = *ptr;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
386 (*ptr) -= 1;
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
387 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
388
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
389 return tmp;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
390 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
391 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
392
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
393 Uint64
3216
48a80f2a7ff2 volitile... duh, yeah the variable need to be labeled volitile
Bob Pendleton <bob@pendleton.com>
parents: 3212
diff changeset
394 SDL_AtomicFetchThenAdd64(volatile Uint64 * ptr, Uint64 value)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
395 {
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
396 #ifdef nativeFetchThenAdd64
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
397 return __sync_fetch_and_add(ptr, value);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
398 #else
3212
759032c318d8 This is a cosmetic fix, I found a stupid typo
Bob Pendleton <bob@pendleton.com>
parents: 3202
diff changeset
399 Uint64 tmp = 0;
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
400
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
401 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
402 tmp = *ptr;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
403 (*ptr)+= value;
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
404 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
405
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
406 return tmp;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
407 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
408 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
409
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
410 Uint64
3216
48a80f2a7ff2 volitile... duh, yeah the variable need to be labeled volitile
Bob Pendleton <bob@pendleton.com>
parents: 3212
diff changeset
411 SDL_AtomicFetchThenSubtract64(volatile Uint64 * ptr, Uint64 value)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
412 {
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
413 #ifdef nativeFetchThenSubtract64
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
414 return __sync_fetch_and_sub(ptr, value);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
415 #else
3212
759032c318d8 This is a cosmetic fix, I found a stupid typo
Bob Pendleton <bob@pendleton.com>
parents: 3202
diff changeset
416 Uint64 tmp = 0;
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
417
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
418 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
419 tmp = *ptr;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
420 (*ptr)-= value;
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
421 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
422
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
423 return tmp;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
424 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
425 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
426
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
427 Uint64
3216
48a80f2a7ff2 volitile... duh, yeah the variable need to be labeled volitile
Bob Pendleton <bob@pendleton.com>
parents: 3212
diff changeset
428 SDL_AtomicIncrementThenFetch64(volatile Uint64 * ptr)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
429 {
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
430 #ifdef nativeIncrementThenFetch64
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
431 return __sync_add_and_fetch(ptr, 1);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
432 #else
3212
759032c318d8 This is a cosmetic fix, I found a stupid typo
Bob Pendleton <bob@pendleton.com>
parents: 3202
diff changeset
433 Uint64 tmp = 0;
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
434
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
435 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
436 (*ptr)+= 1;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
437 tmp = *ptr;
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
438 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
439
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
440 return tmp;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
441 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
442 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
443
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
444 Uint64
3216
48a80f2a7ff2 volitile... duh, yeah the variable need to be labeled volitile
Bob Pendleton <bob@pendleton.com>
parents: 3212
diff changeset
445 SDL_AtomicDecrementThenFetch64(volatile Uint64 * ptr)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
446 {
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
447 #ifdef nativeDecrementThenFetch64
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
448 return __sync_sub_and_fetch(ptr, 1);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
449 #else
3212
759032c318d8 This is a cosmetic fix, I found a stupid typo
Bob Pendleton <bob@pendleton.com>
parents: 3202
diff changeset
450 Uint64 tmp = 0;
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
451
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
452 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
453 (*ptr)-= 1;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
454 tmp = *ptr;
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
455 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
456
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
457 return tmp;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
458 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
459 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
460
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
461 Uint64
3216
48a80f2a7ff2 volitile... duh, yeah the variable need to be labeled volitile
Bob Pendleton <bob@pendleton.com>
parents: 3212
diff changeset
462 SDL_AtomicAddThenFetch64(volatile Uint64 * ptr, Uint64 value)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
463 {
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
464 #ifdef nativeAddThenFetch64
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
465 return __sync_add_and_fetch(ptr, value);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
466 #else
3212
759032c318d8 This is a cosmetic fix, I found a stupid typo
Bob Pendleton <bob@pendleton.com>
parents: 3202
diff changeset
467 Uint64 tmp = 0;
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
468
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
469 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
470 (*ptr)+= value;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
471 tmp = *ptr;
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
472 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
473
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
474 return tmp;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
475 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
476 }
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
477
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
478 Uint64
3216
48a80f2a7ff2 volitile... duh, yeah the variable need to be labeled volitile
Bob Pendleton <bob@pendleton.com>
parents: 3212
diff changeset
479 SDL_AtomicSubtractThenFetch64(volatile Uint64 * ptr, Uint64 value)
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
480 {
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
481 #ifdef nativeSubtractThenFetch64
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
482 return __sync_sub_and_fetch(ptr, value);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
483 #else
3212
759032c318d8 This is a cosmetic fix, I found a stupid typo
Bob Pendleton <bob@pendleton.com>
parents: 3202
diff changeset
484 Uint64 tmp = 0;
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
485
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
486 privateWaitLock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
487 (*ptr)-= value;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
488 tmp = *ptr;
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
489 privateUnlock(ptr);
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
490
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
491 return tmp;
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
492 #endif
3199
3e1bf2b8bd81 This check in updates SDL_atomic.h to reflect the new set of atomic operations in 32 and 64 bit form.
Bob Pendleton <bob@pendleton.com>
parents:
diff changeset
493 }
3202
3aa519a5c676 I've made so many changes I don't dare continue until I check the current stuff in.
Bob Pendleton <bob@pendleton.com>
parents: 3201
diff changeset
494
3261
72b542f34739 The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
Bob Pendleton <bob@pendleton.com>
parents: 3216
diff changeset
495 #endif /* SDL_HAS_64BIT_TYPE */