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annotate test/testatomic.c @ 3421:7bc83a9e09fd

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cpuid doesn't actually change the flags register
author Sam Lantinga <slouken@libsdl.org>
date Fri, 30 Oct 2009 05:02:47 +0000
parents 9de326b3099c
children 3a95a2b93eb3
rev   line source
3338
9de326b3099c Fixed bug #817
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1 #include <stdio.h>
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2 #include "SDL.h"
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3
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4 /* Make sure we have good macros for printing 32 and 64 bit values */
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5 #ifndef PRIu32
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6 #define PRIu32 "u"
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7 #endif
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8 #ifndef PRIu64
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9 #ifdef __WIN32__
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10 #define PRIu64 "I64u"
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11 #else
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12 #define PRIu64 "llu"
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13 #endif
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14 #endif
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15
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16 /*
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17 Absolutely basic tests just to see if we get the expected value
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18 after calling each function.
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19 */
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20
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9de326b3099c Fixed bug #817
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21 char *
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22 tf(SDL_bool tf)
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23 {
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24 static char *t = "true";
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25 static char *f = "false";
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26
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27 if (tf)
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28 {
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29 return t;
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30 }
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31
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32 return f;
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33 }
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9de326b3099c Fixed bug #817
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parents: 3327
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34
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35 int
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975fd903466b int testmmousetable.c the arguments to main() are not compatible with what is required in SDL_main.h
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36 main(int argc, char *argv[])
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37 {
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38
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39 volatile Uint32 val32 = 0;
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40 Uint32 ret32 = 0;
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41
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42 volatile Uint64 val64 = 0;
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43 Uint64 ret64 = 0;
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44
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45 SDL_SpinLock lock = 0;
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46
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47 SDL_bool tfret = SDL_FALSE;
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48
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49 printf("\nspin lock---------------------------------------\n\n");
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50
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51 SDL_AtomicLock(&lock);
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52 printf("AtomicLock lock=%d\n", lock);
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53 SDL_AtomicUnlock(&lock);
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54 printf("AtomicUnlock lock=%d\n", lock);
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55
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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56 printf("\n32 bit -----------------------------------------\n\n");
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57
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58 val32 = 0;
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59 tfret = SDL_AtomicTestThenSet32(&val32);
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60 printf("TestThenSet32 tfret=%s val=%"PRIu32"\n", tf(tfret), val32);
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61 tfret = SDL_AtomicTestThenSet32(&val32);
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62 printf("TestThenSet32 tfret=%s val=%"PRIu32"\n", tf(tfret), val32);
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63
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64 SDL_AtomicClear32(&val32);
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65 printf("Clear32 val=%"PRIu32"\n", val32);
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66
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67 ret32 = SDL_AtomicFetchThenIncrement32(&val32);
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68 printf("FetchThenIncrement32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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69
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70 ret32 = SDL_AtomicFetchThenDecrement32(&val32);
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71 printf("FetchThenDecrement32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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72
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73 ret32 = SDL_AtomicFetchThenAdd32(&val32, 10);
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74 printf("FetchThenAdd32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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75
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76 ret32 = SDL_AtomicFetchThenSubtract32(&val32, 10);
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77 printf("FetchThenSubtract32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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78
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79 ret32 = SDL_AtomicIncrementThenFetch32(&val32);
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80 printf("IncrementThenFetch32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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81
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82 ret32 = SDL_AtomicDecrementThenFetch32(&val32);
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83 printf("DecrementThenFetch32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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84
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85 ret32 = SDL_AtomicAddThenFetch32(&val32, 10);
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86 printf("AddThenFetch32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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87
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88 ret32 = SDL_AtomicSubtractThenFetch32(&val32, 10);
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89 printf("SubtractThenFetch32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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90
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91 #ifdef SDL_HAS_64BIT_TYPE
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92 printf("\n64 bit -----------------------------------------\n\n");
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93
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94 val64 = 0;
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95 tfret = SDL_AtomicTestThenSet64(&val64);
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96 printf("TestThenSet64 tfret=%s val=%"PRIu64"\n", tf(tfret), val64);
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97 tfret = SDL_AtomicTestThenSet64(&val64);
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98 printf("TestThenSet64 tfret=%s val=%"PRIu64"\n", tf(tfret), val64);
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99
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100 SDL_AtomicClear64(&val64);
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101 printf("Clear64 val=%"PRIu64"\n", val64);
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102
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103 ret64 = SDL_AtomicFetchThenIncrement64(&val64);
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104 printf("FetchThenIncrement64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
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105
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106 ret64 = SDL_AtomicFetchThenDecrement64(&val64);
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107 printf("FetchThenDecrement64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
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108
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109 ret64 = SDL_AtomicFetchThenAdd64(&val64, 10);
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110 printf("FetchThenAdd64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
3202
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diff changeset
111
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112 ret64 = SDL_AtomicFetchThenSubtract64(&val64, 10);
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113 printf("FetchThenSubtract64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
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diff changeset
114
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115 ret64 = SDL_AtomicIncrementThenFetch64(&val64);
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diff changeset
116 printf("IncrementThenFetch64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
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diff changeset
117
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118 ret64 = SDL_AtomicDecrementThenFetch64(&val64);
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119 printf("DecrementThenFetch64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
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120
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121 ret64 = SDL_AtomicAddThenFetch64(&val64, 10);
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diff changeset
122 printf("AddThenFetch64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
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
123
3201
c297230efc75 Disabling 64 bit atomics operations until I figure out why they do not link.
Bob Pendleton <bob@pendleton.com>
parents: 3199
diff changeset
124 ret64 = SDL_AtomicSubtractThenFetch64(&val64, 10);
3327
35387815b155 Better cross-platform macros for printing 32 and 64 bit values
Sam Lantinga <slouken@libsdl.org>
parents: 3325
diff changeset
125 printf("SubtractThenFetch64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
3201
c297230efc75 Disabling 64 bit atomics operations until I figure out why they do not link.
Bob Pendleton <bob@pendleton.com>
parents: 3199
diff changeset
126 #endif
3186
Sam Lantinga <slouken@libsdl.org>
parents: 3180
diff changeset
127
3201
c297230efc75 Disabling 64 bit atomics operations until I figure out why they do not link.
Bob Pendleton <bob@pendleton.com>
parents: 3199
diff changeset
128 return 0;
c297230efc75 Disabling 64 bit atomics operations until I figure out why they do not link.
Bob Pendleton <bob@pendleton.com>
parents: 3199
diff changeset
129 }