mirror of
https://github.com/joel16/SDL2.git
synced 2025-02-21 20:22:42 +00:00
91121c3104
if SDL is built with a non-cdecl calling convention, and it's just generally bad practice anyhow. Now programs explicitly call SDL_Quit() where appropriate, wrap SDL_Quit() in a cdecl function where it can't be avoided, and rely on the parachute where a crash might have hit the atexit() before (these ARE test programs, after all!). --HG-- extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%401154
92 lines
1.8 KiB
C
92 lines
1.8 KiB
C
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/* Simple test of the SDL threading code */
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#include <stdio.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <string.h>
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#include "SDL.h"
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#include "SDL_thread.h"
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#define NUMTHREADS 10
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static char volatile time_for_threads_to_die[NUMTHREADS];
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/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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static void quit(int rc)
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{
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SDL_Quit();
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exit(rc);
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}
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int SubThreadFunc(void *data) {
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while(! *(int volatile *)data) {
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; /*SDL_Delay(10); /* do nothing */
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}
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return 0;
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}
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int ThreadFunc(void *data) {
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SDL_Thread *sub_threads[NUMTHREADS];
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int flags[NUMTHREADS];
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int i;
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int tid = (int ) data;
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fprintf(stderr, "Creating Thread %d\n", tid);
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for(i = 0; i < NUMTHREADS; i++) {
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flags[i] = 0;
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sub_threads[i] = SDL_CreateThread(SubThreadFunc, &flags[i]);
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}
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printf("Thread '%d' waiting for signal\n", tid);
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while(time_for_threads_to_die[tid] != 1) {
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; /* do nothing */
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}
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printf("Thread '%d' sending signals to subthreads\n", tid);
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for(i = 0; i < NUMTHREADS; i++) {
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flags[i] = 1;
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SDL_WaitThread(sub_threads[i], NULL);
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}
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printf("Thread '%d' exiting!\n", tid);
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return 0;
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}
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int main(int argc, char *argv[])
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{
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SDL_Thread *threads[NUMTHREADS];
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int i;
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/* Load the SDL library */
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if ( SDL_Init(0) < 0 ) {
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fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
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return(1);
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}
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signal(SIGSEGV, SIG_DFL);
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for(i = 0; i < NUMTHREADS; i++) {
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time_for_threads_to_die[i] = 0;
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threads[i] = SDL_CreateThread(ThreadFunc, (void *) i);
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if ( threads[i] == NULL ) {
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fprintf(stderr,
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"Couldn't create thread: %s\n", SDL_GetError());
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quit(1);
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}
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}
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for(i = 0; i < NUMTHREADS; i++) {
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time_for_threads_to_die[i] = 1;
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}
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for(i = NUMTHREADS-1; i >= 0; --i) {
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SDL_WaitThread(threads[i], NULL);
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}
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SDL_Quit();
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return(0);
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}
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