1 2 /* Simple test of the SDL threading code */ 3 4 #include <stdio.h> 5 #include <stdlib.h> 6 #include <signal.h> 7 8 #include "SDL.h" 9 #include "SDL_thread.h" 10 11 static int alive = 0; 12 13 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ 14 static void quit(int rc) 15 { 16 SDL_Quit(); 17 exit(rc); 18 } 19 20 int SDLCALL ThreadFunc(void *data) 21 { 22 printf("Started thread %s: My thread id is %u\n", 23 (char *)data, SDL_ThreadID()); 24 while ( alive ) { 25 printf("Thread '%s' is alive!\n", (char *)data); 26 SDL_Delay(1*1000); 27 } 28 printf("Thread '%s' exiting!\n", (char *)data); 29 return(0); 30 } 31 32 static void killed(int sig) 33 { 34 printf("Killed with SIGTERM, waiting 5 seconds to exit\n"); 35 SDL_Delay(5*1000); 36 alive = 0; 37 quit(0); 38 } 39 40 int main(int argc, char *argv[]) 41 { 42 SDL_Thread *thread; 43 44 /* Load the SDL library */ 45 if ( SDL_Init(0) < 0 ) { 46 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); 47 return(1); 48 } 49 50 alive = 1; 51 thread = SDL_CreateThread(ThreadFunc, "#1"); 52 if ( thread == NULL ) { 53 fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError()); 54 quit(1); 55 } 56 SDL_Delay(5*1000); 57 printf("Waiting for thread #1\n"); 58 alive = 0; 59 SDL_WaitThread(thread, NULL); 60 61 alive = 1; 62 thread = SDL_CreateThread(ThreadFunc, "#2"); 63 if ( thread == NULL ) { 64 fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError()); 65 quit(1); 66 } 67 SDL_Delay(5*1000); 68 printf("Killing thread #2\n"); 69 SDL_KillThread(thread); 70 71 alive = 1; 72 signal(SIGTERM, killed); 73 thread = SDL_CreateThread(ThreadFunc, "#3"); 74 if ( thread == NULL ) { 75 fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError()); 76 quit(1); 77 } 78 raise(SIGTERM); 79 80 SDL_Quit(); /* Never reached */ 81 return(0); /* Never reached */ 82 } 83
