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comparison test/testatomic.c @ 3261:72b542f34739

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The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops. The linux code appears to be complete and *should* be the base of all Unix and GCC based versions. The macosx and win32 versions are currently just copies of the dummy code. I will begin working on the windows version as soon as this check in is done. I need someone to work on the Mac OS X version. I'm afraid that this check in will break QNX (Sorry!)
author Bob Pendleton <bob@pendleton.com>
date Thu, 17 Sep 2009 20:35:12 +0000
parents 916f396fe65d
children 975fd903466b
comparison
equal deleted inserted replaced
3260:85bf3f297b5c 3261:72b542f34739
27 Uint32 ret32 = 0; 27 Uint32 ret32 = 0;
28 28
29 volatile Uint64 val64 = 0; 29 volatile Uint64 val64 = 0;
30 Uint64 ret64 = 0; 30 Uint64 ret64 = 0;
31 31
32 SDL_SpinLock lock = 0;
33
32 SDL_bool tfret = SDL_FALSE; 34 SDL_bool tfret = SDL_FALSE;
33 35
34 printf("32 bit -----------------------------------------\n\n"); 36 printf("\nspin lock---------------------------------------\n\n");
35 37
36 ret32 = SDL_AtomicExchange32(&val32, 10); 38 SDL_AtomicLock(&lock);
37 printf("Exchange32 ret=%d val=%d\n", ret32, val32); 39 printf("AtomicLock lock=%d\n", lock);
38 ret32 = SDL_AtomicExchange32(&val32, 0); 40 SDL_AtomicUnlock(&lock);
39 printf("Exchange32 ret=%d val=%d\n", ret32, val32); 41 printf("AtomicUnlock lock=%d\n", lock);
40 42
41 val32 = 10; 43 printf("\n32 bit -----------------------------------------\n\n");
42 tfret = SDL_AtomicCompareThenSet32(&val32, 10, 20);
43 printf("CompareThenSet32 tfret=%s val=%d\n", tf(tfret), val32);
44 val32 = 10;
45 tfret = SDL_AtomicCompareThenSet32(&val32, 0, 20);
46 printf("CompareThenSet32 tfret=%s val=%d\n", tf(tfret), val32);
47 44
48 val32 = 0; 45 val32 = 0;
49 tfret = SDL_AtomicTestThenSet32(&val32); 46 tfret = SDL_AtomicTestThenSet32(&val32);
50 printf("TestThenSet32 tfret=%s val=%d\n", tf(tfret), val32); 47 printf("TestThenSet32 tfret=%s val=%d\n", tf(tfret), val32);
51 tfret = SDL_AtomicTestThenSet32(&val32); 48 tfret = SDL_AtomicTestThenSet32(&val32);
77 74
78 ret32 = SDL_AtomicSubtractThenFetch32(&val32, 10); 75 ret32 = SDL_AtomicSubtractThenFetch32(&val32, 10);
79 printf("SubtractThenFetch32 ret=%d val=%d\n", ret32, val32); 76 printf("SubtractThenFetch32 ret=%d val=%d\n", ret32, val32);
80 77
81 #ifdef SDL_HAS_64BIT_TYPE 78 #ifdef SDL_HAS_64BIT_TYPE
82 printf("64 bit -----------------------------------------\n\n"); 79 printf("\n64 bit -----------------------------------------\n\n");
83
84 ret64 = SDL_AtomicExchange64(&val64, 10);
85 printf("Exchange64 ret=%lld val=%lld\n", ret64, val64);
86 ret64 = SDL_AtomicExchange64(&val64, 0);
87 printf("Exchange64 ret=%lld val=%lld\n", ret64, val64);
88
89 val64 = 10;
90 tfret = SDL_AtomicCompareThenSet64(&val64, 10, 20);
91 printf("CompareThenSet64 tfret=%s val=%lld\n", tf(tfret), val64);
92 val64 = 10;
93 tfret = SDL_AtomicCompareThenSet64(&val64, 0, 20);
94 printf("CompareThenSet64 tfret=%s val=%lld\n", tf(tfret), val64);
95 80
96 val64 = 0; 81 val64 = 0;
97 tfret = SDL_AtomicTestThenSet64(&val64); 82 tfret = SDL_AtomicTestThenSet64(&val64);
98 printf("TestThenSet64 tfret=%s val=%lld\n", tf(tfret), val64); 83 printf("TestThenSet64 tfret=%s val=%lld\n", tf(tfret), val64);
99 tfret = SDL_AtomicTestThenSet64(&val64); 84 tfret = SDL_AtomicTestThenSet64(&val64);