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author | Sam Lantinga <slouken@lokigames.com> | 2001-04-26 16:45:43 +0000 |
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committer | Sam Lantinga <slouken@lokigames.com> | 2001-04-26 16:45:43 +0000 |
commit | 359adb4186fc9ad6b2351f6880d8a5ebcf3cb5ea (patch) | |
tree | 5ef8210ef050b558167c3483a85ad96961cdda68 /test/torturethread.c | |
download | sdl-359adb4186fc9ad6b2351f6880d8a5ebcf3cb5ea.tar.gz |
Initial revision
Diffstat (limited to 'test/torturethread.c')
-rw-r--r-- | test/torturethread.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/test/torturethread.c b/test/torturethread.c new file mode 100644 index 000000000..50e38cc16 --- /dev/null +++ b/test/torturethread.c @@ -0,0 +1,85 @@ + +/* Simple test of the SDL threading code */ + +#include <stdio.h> +#include <stdlib.h> +#include <signal.h> +#include <string.h> + +#include "SDL.h" +#include "SDL_thread.h" + +#define NUMTHREADS 10 + +static char volatile time_for_threads_to_die[NUMTHREADS]; + +int SubThreadFunc(void *data) { + while(! *(int volatile *)data) { + ; /*SDL_Delay(10); /* do nothing */ + } + return 0; +} + +int ThreadFunc(void *data) { + SDL_Thread *sub_threads[NUMTHREADS]; + int flags[NUMTHREADS]; + int i; + int tid = (int ) data; + + fprintf(stderr, "Creating Thread %d\n", tid); + + for(i = 0; i < NUMTHREADS; i++) { + flags[i] = 0; + sub_threads[i] = SDL_CreateThread(SubThreadFunc, &flags[i]); + } + + printf("Thread '%d' waiting for signal\n", tid); + while(time_for_threads_to_die[tid] != 1) { + ; /* do nothing */ + } + + printf("Thread '%d' sending signals to subthreads\n", tid); + for(i = 0; i < NUMTHREADS; i++) { + flags[i] = 1; + SDL_WaitThread(sub_threads[i], NULL); + } + + printf("Thread '%d' exiting!\n", tid); + + return 0; +} + +int main(int argc, char *argv[]) +{ + SDL_Thread *threads[NUMTHREADS]; + int i; + + /* Load the SDL library */ + if ( SDL_Init(0) < 0 ) { + fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); + exit(1); + } + atexit(SDL_Quit); + + + signal(SIGSEGV, SIG_DFL); + for(i = 0; i < NUMTHREADS; i++) { + time_for_threads_to_die[i] = 0; + threads[i] = SDL_CreateThread(ThreadFunc, (void *) i); + + if ( threads[i] == NULL ) { + fprintf(stderr, + "Couldn't create thread: %s\n", SDL_GetError()); + exit(1); + } + } + + for(i = 0; i < NUMTHREADS; i++) { + time_for_threads_to_die[i] = 1; + } + + for(i = NUMTHREADS-1; i >= 0; --i) { + SDL_WaitThread(threads[i], NULL); + } + return(0); /* Never reached */ +} |