test/testhread.c
author Sam Lantinga <slouken@lokigames.com>
Thu, 26 Apr 2001 16:45:43 +0000
changeset 0 74212992fb08
child 1151 be9c9c8f6d53
permissions -rw-r--r--
Initial revision
     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 int ThreadFunc(void *data)
    14 {
    15 	printf("Started thread %s: My thread id is %u\n",
    16 				(char *)data, SDL_ThreadID());
    17 	while ( alive ) {
    18 		printf("Thread '%s' is alive!\n", (char *)data);
    19 		SDL_Delay(1*1000);
    20 	}
    21 	printf("Thread '%s' exiting!\n", (char *)data);
    22 	return(0);
    23 }
    24 
    25 static void killed(int sig)
    26 {
    27 	printf("Killed with SIGTERM, waiting 5 seconds to exit\n");
    28 	SDL_Delay(5*1000);
    29 	alive = 0;
    30 	exit(0);
    31 }
    32 
    33 int main(int argc, char *argv[])
    34 {
    35 	SDL_Thread *thread;
    36 
    37 	/* Load the SDL library */
    38 	if ( SDL_Init(0) < 0 ) {
    39 		fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
    40 		exit(1);
    41 	}
    42 	atexit(SDL_Quit);
    43 
    44 	alive = 1;
    45 	thread = SDL_CreateThread(ThreadFunc, "#1");
    46 	if ( thread == NULL ) {
    47 		fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError());
    48 		exit(1);
    49 	}
    50 	SDL_Delay(5*1000);
    51 	printf("Waiting for thread #1\n");
    52 	alive = 0;
    53 	SDL_WaitThread(thread, NULL);
    54 
    55 	alive = 1;
    56 	thread = SDL_CreateThread(ThreadFunc, "#2");
    57 	if ( thread == NULL ) {
    58 		fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError());
    59 		exit(1);
    60 	}
    61 	SDL_Delay(5*1000);
    62 	printf("Killing thread #2\n");
    63 	SDL_KillThread(thread);
    64 
    65 	alive = 1;
    66 	signal(SIGTERM, killed);
    67 	thread = SDL_CreateThread(ThreadFunc, "#3");
    68 	if ( thread == NULL ) {
    69 		fprintf(stderr, "Couldn't create thread: %s\n", SDL_GetError());
    70 		exit(1);
    71 	}
    72 	raise(SIGTERM);
    73 
    74 	return(0);	/* Never reached */
    75 }