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testatomic.c
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#include <stdio.h>
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#include "SDL.h"
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/* Make sure we have good macros for printing 32 and 64 bit values */
#ifndef PRIu32
#define PRIu32 "u"
#endif
#ifndef PRIu64
#ifdef __WIN32__
#define PRIu64 "I64u"
#else
#define PRIu64 "llu"
#endif
#endif
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Absolutely basic tests just to see if we get the expected value
after calling each function.
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char *
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tf(SDL_bool tf)
{
static char *t = "true";
static char *f = "false";
if (tf)
{
return t;
}
return f;
}
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main(int argc, char *argv[])
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volatile Uint32 val32 = 0;
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Uint32 ret32 = 0;
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volatile Uint64 val64 = 0;
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Uint64 ret64 = 0;
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SDL_SpinLock lock = 0;
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SDL_bool tfret = SDL_FALSE;
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printf("\nspin lock---------------------------------------\n\n");
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SDL_AtomicLock(&lock);
printf("AtomicLock lock=%d\n", lock);
SDL_AtomicUnlock(&lock);
printf("AtomicUnlock lock=%d\n", lock);
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printf("\n32 bit -----------------------------------------\n\n");
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val32 = 0;
tfret = SDL_AtomicTestThenSet32(&val32);
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printf("TestThenSet32 tfret=%s val=%"PRIu32"\n", tf(tfret), val32);
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tfret = SDL_AtomicTestThenSet32(&val32);
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printf("TestThenSet32 tfret=%s val=%"PRIu32"\n", tf(tfret), val32);
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SDL_AtomicClear32(&val32);
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printf("Clear32 val=%"PRIu32"\n", val32);
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ret32 = SDL_AtomicFetchThenIncrement32(&val32);
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printf("FetchThenIncrement32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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ret32 = SDL_AtomicFetchThenDecrement32(&val32);
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printf("FetchThenDecrement32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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ret32 = SDL_AtomicFetchThenAdd32(&val32, 10);
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printf("FetchThenAdd32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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ret32 = SDL_AtomicFetchThenSubtract32(&val32, 10);
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printf("FetchThenSubtract32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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ret32 = SDL_AtomicIncrementThenFetch32(&val32);
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printf("IncrementThenFetch32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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ret32 = SDL_AtomicDecrementThenFetch32(&val32);
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printf("DecrementThenFetch32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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ret32 = SDL_AtomicAddThenFetch32(&val32, 10);
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printf("AddThenFetch32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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ret32 = SDL_AtomicSubtractThenFetch32(&val32, 10);
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printf("SubtractThenFetch32 ret=%"PRIu32" val=%"PRIu32"\n", ret32, val32);
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#ifdef SDL_HAS_64BIT_TYPE
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printf("\n64 bit -----------------------------------------\n\n");
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val64 = 0;
tfret = SDL_AtomicTestThenSet64(&val64);
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printf("TestThenSet64 tfret=%s val=%"PRIu64"\n", tf(tfret), val64);
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tfret = SDL_AtomicTestThenSet64(&val64);
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printf("TestThenSet64 tfret=%s val=%"PRIu64"\n", tf(tfret), val64);
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SDL_AtomicClear64(&val64);
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printf("Clear64 val=%"PRIu64"\n", val64);
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ret64 = SDL_AtomicFetchThenIncrement64(&val64);
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printf("FetchThenIncrement64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
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ret64 = SDL_AtomicFetchThenDecrement64(&val64);
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printf("FetchThenDecrement64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
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ret64 = SDL_AtomicFetchThenAdd64(&val64, 10);
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printf("FetchThenAdd64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
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ret64 = SDL_AtomicFetchThenSubtract64(&val64, 10);
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printf("FetchThenSubtract64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
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ret64 = SDL_AtomicIncrementThenFetch64(&val64);
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printf("IncrementThenFetch64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
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ret64 = SDL_AtomicDecrementThenFetch64(&val64);
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printf("DecrementThenFetch64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
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ret64 = SDL_AtomicAddThenFetch64(&val64, 10);
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printf("AddThenFetch64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
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ret64 = SDL_AtomicSubtractThenFetch64(&val64, 10);
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printf("SubtractThenFetch64 ret=%"PRIu64" val=%"PRIu64"\n", ret64, val64);
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#endif
return 0;
}