Mercurial > sdl-ios-xcode
diff test/testatomic.c @ 3202:3aa519a5c676
I've made so many changes I don't dare continue until I check the current stuff in.
/test/testatomic.c performs absolutely basic tests to show that the function work as expected. Need a second test to do more detailed tests.
/include/SDL_atomic.h provides declarations for all included functions.
/src/atomic/linux/SDL_atomic.c provided all the functions. On a generic built the 64 bit functions work, but they are emulated. On a build for -march=pentium and above the 64 bit functions use native instructions
/src/atomic/dummy/SDL_atomic.c emulates all the operations using SDL_mutex.h.
/src/atomic/win32/SDL_atomic.c is a copy of dummy
/src/atomic/macosx/SDL_atomic.s is a copy of dummy
These versions of SDL_atomic.c provide a frame work for building the library with a mixture of native and emulated functions. This allows the whole library to be provided on all platforms. (I hope.)
I hope this fits with the SDL philosophy of either providing a common subset or emulating when the platform is missing a feature.
I have not added dummy, macosx, or win32 to the build. They are there as place holders for future work.
I have modified congifure.in to compile sources in /src/atomic/linux. (The SDL configure.in file is an amazing piece of work and I hope I didn't mess it up. :-)
| author | Bob Pendleton <bob@pendleton.com> |
|---|---|
| date | Mon, 29 Jun 2009 19:54:43 +0000 |
| parents | c297230efc75 |
| children | 48a80f2a7ff2 |
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--- a/test/testatomic.c Wed Jun 24 22:24:23 2009 +0000 +++ b/test/testatomic.c Mon Jun 29 19:54:43 2009 +0000 @@ -1,50 +1,232 @@ #include "SDL.h" /* - Absolutely basic test just to see if we get the expected value after - calling each function. + Absolutely basic tests just to see if we get the expected value + after calling each function. */ +char * +tf(SDL_bool tf) +{ + static char *t = "true"; + static char *f = "false"; + + if (tf) + { + return t; + } + + return f; +} + int main(int argc, char **argv) { + Uint8 val8 = 0; + Uint8 ret8 = 0; + + Uint16 val16 = 0; + Uint16 ret16 = 0; + Uint32 val32 = 0; Uint32 ret32 = 0; Uint64 val64 = 0; Uint64 ret64 = 0; - SDL_bool tfval = SDL_FALSE; + SDL_bool tfret = SDL_FALSE; + + + printf("8 bit -----------------------------------------\n\n"); + + ret8 = SDL_AtomicExchange8(&val8, 10); + printf("Exchange8 ret=%d val=%d\n", ret8, val8); + ret8 = SDL_AtomicExchange8(&val8, 0); + printf("Exchange8 ret=%d val=%d\n", ret8, val8); + + val8 = 10; + tfret = SDL_AtomicCompareThenSet8(&val8, 10, 20); + printf("CompareThenSet8 tfret=%s val=%d\n", tf(tfret), val8); + val8 = 10; + tfret = SDL_AtomicCompareThenSet8(&val8, 0, 20); + printf("CompareThenSet8 tfret=%s val=%d\n", tf(tfret), val8); + + val8 = 0; + tfret = SDL_AtomicTestThenSet8(&val8); + printf("TestThenSet8 tfret=%s val=%d\n", tf(tfret), val8); + tfret = SDL_AtomicTestThenSet8(&val8); + printf("TestThenSet8 tfret=%s val=%d\n", tf(tfret), val8); + + SDL_AtomicClear8(&val8); + printf("Clear8 val=%d\n", val8); + + ret8 = SDL_AtomicFetchThenIncrement8(&val8); + printf("FetchThenIncrement8 ret=%d val=%d\n", ret8, val8); + + ret8 = SDL_AtomicFetchThenDecrement8(&val8); + printf("FetchThenDecrement8 ret=%d val=%d\n", ret8, val8); + + ret8 = SDL_AtomicFetchThenAdd8(&val8, 10); + printf("FetchThenAdd8 ret=%d val=%d\n", ret8, val8); + + ret8 = SDL_AtomicFetchThenSubtract8(&val8, 10); + printf("FetchThenSubtract8 ret=%d val=%d\n", ret8, val8); + + ret8 = SDL_AtomicIncrementThenFetch8(&val8); + printf("IncrementThenFetch8 ret=%d val=%d\n", ret8, val8); + + ret8 = SDL_AtomicDecrementThenFetch8(&val8); + printf("DecrementThenFetch8 ret=%d val=%d\n", ret8, val8); + + ret8 = SDL_AtomicAddThenFetch8(&val8, 10); + printf("AddThenFetch8 ret=%d val=%d\n", ret8, val8); + + ret8 = SDL_AtomicSubtractThenFetch8(&val8, 10); + printf("SubtractThenFetch8 ret=%d val=%d\n", ret8, val8); + + + printf("16 bit -----------------------------------------\n\n"); + + ret16 = SDL_AtomicExchange16(&val16, 10); + printf("Exchange16 ret=%d val=%d\n", ret16, val16); + ret16 = SDL_AtomicExchange16(&val16, 0); + printf("Exchange16 ret=%d val=%d\n", ret16, val16); + + val16 = 10; + tfret = SDL_AtomicCompareThenSet16(&val16, 10, 20); + printf("CompareThenSet16 tfret=%s val=%d\n", tf(tfret), val16); + val16 = 10; + tfret = SDL_AtomicCompareThenSet16(&val16, 0, 20); + printf("CompareThenSet16 tfret=%s val=%d\n", tf(tfret), val16); + + val16 = 0; + tfret = SDL_AtomicTestThenSet16(&val16); + printf("TestThenSet16 tfret=%s val=%d\n", tf(tfret), val16); + tfret = SDL_AtomicTestThenSet16(&val16); + printf("TestThenSet16 tfret=%s val=%d\n", tf(tfret), val16); + + SDL_AtomicClear16(&val16); + printf("Clear16 val=%d\n", val16); + + ret16 = SDL_AtomicFetchThenIncrement16(&val16); + printf("FetchThenIncrement16 ret=%d val=%d\n", ret16, val16); + + ret16 = SDL_AtomicFetchThenDecrement16(&val16); + printf("FetchThenDecrement16 ret=%d val=%d\n", ret16, val16); + + ret16 = SDL_AtomicFetchThenAdd16(&val16, 10); + printf("FetchThenAdd16 ret=%d val=%d\n", ret16, val16); + + ret16 = SDL_AtomicFetchThenSubtract16(&val16, 10); + printf("FetchThenSubtract16 ret=%d val=%d\n", ret16, val16); + + ret16 = SDL_AtomicIncrementThenFetch16(&val16); + printf("IncrementThenFetch16 ret=%d val=%d\n", ret16, val16); + + ret16 = SDL_AtomicDecrementThenFetch16(&val16); + printf("DecrementThenFetch16 ret=%d val=%d\n", ret16, val16); + + ret16 = SDL_AtomicAddThenFetch16(&val16, 10); + printf("AddThenFetch16 ret=%d val=%d\n", ret16, val16); + + ret16 = SDL_AtomicSubtractThenFetch16(&val16, 10); + printf("SubtractThenFetch16 ret=%d val=%d\n", ret16, val16); + + printf("32 bit -----------------------------------------\n\n"); ret32 = SDL_AtomicExchange32(&val32, 10); - tfval = SDL_AtomicCompareThenSet32(&val32, 10, 20); - tfval = SDL_AtomicTestThenSet32(&val32); + printf("Exchange32 ret=%d val=%d\n", ret32, val32); + ret32 = SDL_AtomicExchange32(&val32, 0); + printf("Exchange32 ret=%d val=%d\n", ret32, val32); + + val32 = 10; + tfret = SDL_AtomicCompareThenSet32(&val32, 10, 20); + printf("CompareThenSet32 tfret=%s val=%d\n", tf(tfret), val32); + val32 = 10; + tfret = SDL_AtomicCompareThenSet32(&val32, 0, 20); + printf("CompareThenSet32 tfret=%s val=%d\n", tf(tfret), val32); + + val32 = 0; + tfret = SDL_AtomicTestThenSet32(&val32); + printf("TestThenSet32 tfret=%s val=%d\n", tf(tfret), val32); + tfret = SDL_AtomicTestThenSet32(&val32); + printf("TestThenSet32 tfret=%s val=%d\n", tf(tfret), val32); + SDL_AtomicClear32(&val32); + printf("Clear32 val=%d\n", val32); + ret32 = SDL_AtomicFetchThenIncrement32(&val32); + printf("FetchThenIncrement32 ret=%d val=%d\n", ret32, val32); + ret32 = SDL_AtomicFetchThenDecrement32(&val32); + printf("FetchThenDecrement32 ret=%d val=%d\n", ret32, val32); + ret32 = SDL_AtomicFetchThenAdd32(&val32, 10); + printf("FetchThenAdd32 ret=%d val=%d\n", ret32, val32); + ret32 = SDL_AtomicFetchThenSubtract32(&val32, 10); + printf("FetchThenSubtract32 ret=%d val=%d\n", ret32, val32); + ret32 = SDL_AtomicIncrementThenFetch32(&val32); + printf("IncrementThenFetch32 ret=%d val=%d\n", ret32, val32); + ret32 = SDL_AtomicDecrementThenFetch32(&val32); + printf("DecrementThenFetch32 ret=%d val=%d\n", ret32, val32); + ret32 = SDL_AtomicAddThenFetch32(&val32, 10); + printf("AddThenFetch32 ret=%d val=%d\n", ret32, val32); + ret32 = SDL_AtomicSubtractThenFetch32(&val32, 10); + printf("SubtractThenFetch32 ret=%d val=%d\n", ret32, val32); -/* #ifdef SDL_HAS_64BIT_TYPE */ -#if 0 +#ifdef SDL_HAS_64BIT_TYPE + printf("64 bit -----------------------------------------\n\n"); ret64 = SDL_AtomicExchange64(&val64, 10); - tfval = SDL_AtomicCompareThenSet64(&val64, 10, 20); - tfval = SDL_AtomicTestThenSet64(&val64); + printf("Exchange64 ret=%lld val=%lld\n", ret64, val64); + ret64 = SDL_AtomicExchange64(&val64, 0); + printf("Exchange64 ret=%lld val=%lld\n", ret64, val64); + + val64 = 10; + tfret = SDL_AtomicCompareThenSet64(&val64, 10, 20); + printf("CompareThenSet64 tfret=%s val=%lld\n", tf(tfret), val64); + val64 = 10; + tfret = SDL_AtomicCompareThenSet64(&val64, 0, 20); + printf("CompareThenSet64 tfret=%s val=%lld\n", tf(tfret), val64); + + val64 = 0; + tfret = SDL_AtomicTestThenSet64(&val64); + printf("TestThenSet64 tfret=%s val=%lld\n", tf(tfret), val64); + tfret = SDL_AtomicTestThenSet64(&val64); + printf("TestThenSet64 tfret=%s val=%lld\n", tf(tfret), val64); + SDL_AtomicClear64(&val64); + printf("Clear64 val=%lld\n", val64); + ret64 = SDL_AtomicFetchThenIncrement64(&val64); + printf("FetchThenIncrement64 ret=%lld val=%lld\n", ret64, val64); + ret64 = SDL_AtomicFetchThenDecrement64(&val64); + printf("FetchThenDecrement64 ret=%lld val=%lld\n", ret64, val64); + ret64 = SDL_AtomicFetchThenAdd64(&val64, 10); + printf("FetchThenAdd64 ret=%lld val=%lld\n", ret64, val64); + ret64 = SDL_AtomicFetchThenSubtract64(&val64, 10); + printf("FetchThenSubtract64 ret=%lld val=%lld\n", ret64, val64); + ret64 = SDL_AtomicIncrementThenFetch64(&val64); + printf("IncrementThenFetch64 ret=%lld val=%lld\n", ret64, val64); + ret64 = SDL_AtomicDecrementThenFetch64(&val64); + printf("DecrementThenFetch64 ret=%lld val=%lld\n", ret64, val64); + ret64 = SDL_AtomicAddThenFetch64(&val64, 10); + printf("AddThenFetch64 ret=%lld val=%lld\n", ret64, val64); + ret64 = SDL_AtomicSubtractThenFetch64(&val64, 10); + printf("SubtractThenFetch64 ret=%lld val=%lld\n", ret64, val64); #endif return 0;