mirror of
https://github.com/Relintai/sdl2_frt.git
synced 2024-11-21 20:47:19 +01:00
131 lines
3.5 KiB
C
131 lines
3.5 KiB
C
/*
|
|
Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org>
|
|
|
|
This software is provided 'as-is', without any express or implied
|
|
warranty. In no event will the authors be held liable for any damages
|
|
arising from the use of this software.
|
|
|
|
Permission is granted to anyone to use this software for any purpose,
|
|
including commercial applications, and to alter it and redistribute it
|
|
freely.
|
|
*/
|
|
|
|
/* Simple test of the SDL threading code */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <signal.h>
|
|
|
|
#include "SDL.h"
|
|
|
|
static SDL_TLSID tls;
|
|
static int alive = 0;
|
|
static int testprio = 0;
|
|
|
|
/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
|
|
static void
|
|
quit(int rc)
|
|
{
|
|
SDL_Quit();
|
|
exit(rc);
|
|
}
|
|
|
|
static const char *
|
|
getprioritystr(SDL_ThreadPriority priority)
|
|
{
|
|
switch(priority)
|
|
{
|
|
case SDL_THREAD_PRIORITY_LOW: return "SDL_THREAD_PRIORITY_LOW";
|
|
case SDL_THREAD_PRIORITY_NORMAL: return "SDL_THREAD_PRIORITY_NORMAL";
|
|
case SDL_THREAD_PRIORITY_HIGH: return "SDL_THREAD_PRIORITY_HIGH";
|
|
case SDL_THREAD_PRIORITY_TIME_CRITICAL: return "SDL_THREAD_PRIORITY_TIME_CRITICAL";
|
|
}
|
|
|
|
return "???";
|
|
}
|
|
|
|
int SDLCALL
|
|
ThreadFunc(void *data)
|
|
{
|
|
SDL_ThreadPriority prio = SDL_THREAD_PRIORITY_NORMAL;
|
|
|
|
SDL_TLSSet(tls, "baby thread", NULL);
|
|
SDL_Log("Started thread %s: My thread id is %lu, thread data = %s\n",
|
|
(char *) data, SDL_ThreadID(), (const char *)SDL_TLSGet(tls));
|
|
while (alive) {
|
|
SDL_Log("Thread '%s' is alive!\n", (char *) data);
|
|
|
|
if (testprio) {
|
|
SDL_Log("SDL_SetThreadPriority(%s):%d\n", getprioritystr(prio), SDL_SetThreadPriority(prio));
|
|
if (++prio > SDL_THREAD_PRIORITY_TIME_CRITICAL)
|
|
prio = SDL_THREAD_PRIORITY_LOW;
|
|
}
|
|
|
|
SDL_Delay(1 * 1000);
|
|
}
|
|
SDL_Log("Thread '%s' exiting!\n", (char *) data);
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
killed(int sig)
|
|
{
|
|
SDL_Log("Killed with SIGTERM, waiting 5 seconds to exit\n");
|
|
SDL_Delay(5 * 1000);
|
|
alive = 0;
|
|
quit(0);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int arg = 1;
|
|
SDL_Thread *thread;
|
|
|
|
/* Enable standard application logging */
|
|
SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
|
|
|
|
/* Load the SDL library */
|
|
if (SDL_Init(0) < 0) {
|
|
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
|
|
return (1);
|
|
}
|
|
|
|
while (argv[arg] && *argv[arg] == '-') {
|
|
if (SDL_strcmp(argv[arg], "--prio") == 0) {
|
|
testprio = 1;
|
|
}
|
|
++arg;
|
|
}
|
|
|
|
tls = SDL_TLSCreate();
|
|
SDL_assert(tls);
|
|
SDL_TLSSet(tls, "main thread", NULL);
|
|
SDL_Log("Main thread data initially: %s\n", (const char *)SDL_TLSGet(tls));
|
|
|
|
alive = 1;
|
|
thread = SDL_CreateThread(ThreadFunc, "One", "#1");
|
|
if (thread == NULL) {
|
|
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create thread: %s\n", SDL_GetError());
|
|
quit(1);
|
|
}
|
|
SDL_Delay(5 * 1000);
|
|
SDL_Log("Waiting for thread #1\n");
|
|
alive = 0;
|
|
SDL_WaitThread(thread, NULL);
|
|
|
|
SDL_Log("Main thread data finally: %s\n", (const char *)SDL_TLSGet(tls));
|
|
|
|
alive = 1;
|
|
signal(SIGTERM, killed);
|
|
thread = SDL_CreateThread(ThreadFunc, "Two", "#2");
|
|
if (thread == NULL) {
|
|
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create thread: %s\n", SDL_GetError());
|
|
quit(1);
|
|
}
|
|
raise(SIGTERM);
|
|
|
|
SDL_Quit(); /* Never reached */
|
|
return (0); /* Never reached */
|
|
}
|