test/testthread.c
author Philipp Wiesemann <philipp.wiesemann@arcor.de>
Sat, 21 Mar 2015 08:01:43 +0100
changeset 9417 86483b23f44a
parent 9356 e87d6e1e812a
child 9619 b94b6d0bff0f
permissions -rw-r--r--
Fixed confusing audio and touch events because of shared enumeration values.
     1 /*
     2   Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
     3 
     4   This software is provided 'as-is', without any express or implied
     5   warranty.  In no event will the authors be held liable for any damages
     6   arising from the use of this software.
     7 
     8   Permission is granted to anyone to use this software for any purpose,
     9   including commercial applications, and to alter it and redistribute it
    10   freely.
    11 */
    12 
    13 /* Simple test of the SDL threading code */
    14 
    15 #include <stdio.h>
    16 #include <stdlib.h>
    17 #include <signal.h>
    18 
    19 #include "SDL.h"
    20 
    21 static SDL_TLSID tls;
    22 static int alive = 0;
    23 
    24 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
    25 static void
    26 quit(int rc)
    27 {
    28     SDL_Quit();
    29     exit(rc);
    30 }
    31 
    32 int SDLCALL
    33 ThreadFunc(void *data)
    34 {
    35     SDL_TLSSet(tls, "baby thread", NULL);
    36     SDL_Log("Started thread %s: My thread id is %lu, thread data = %s\n",
    37            (char *) data, SDL_ThreadID(), (const char *)SDL_TLSGet(tls));
    38     while (alive) {
    39         SDL_Log("Thread '%s' is alive!\n", (char *) data);
    40         SDL_Delay(1 * 1000);
    41     }
    42     SDL_Log("Thread '%s' exiting!\n", (char *) data);
    43     return (0);
    44 }
    45 
    46 static void
    47 killed(int sig)
    48 {
    49     SDL_Log("Killed with SIGTERM, waiting 5 seconds to exit\n");
    50     SDL_Delay(5 * 1000);
    51     alive = 0;
    52     quit(0);
    53 }
    54 
    55 int
    56 main(int argc, char *argv[])
    57 {
    58     SDL_Thread *thread;
    59 
    60 	/* Enable standard application logging */
    61     SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
    62 
    63     /* Load the SDL library */
    64     if (SDL_Init(0) < 0) {
    65         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
    66         return (1);
    67     }
    68 
    69     tls = SDL_TLSCreate();
    70     SDL_assert(tls);
    71     SDL_TLSSet(tls, "main thread", NULL);
    72     SDL_Log("Main thread data initially: %s\n", (const char *)SDL_TLSGet(tls));
    73 
    74     alive = 1;
    75     thread = SDL_CreateThread(ThreadFunc, "One", "#1");
    76     if (thread == NULL) {
    77         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create thread: %s\n", SDL_GetError());
    78         quit(1);
    79     }
    80     SDL_Delay(5 * 1000);
    81     SDL_Log("Waiting for thread #1\n");
    82     alive = 0;
    83     SDL_WaitThread(thread, NULL);
    84 
    85     SDL_Log("Main thread data finally: %s\n", (const char *)SDL_TLSGet(tls));
    86 
    87     alive = 1;
    88     signal(SIGTERM, killed);
    89     thread = SDL_CreateThread(ThreadFunc, "Two", "#2");
    90     if (thread == NULL) {
    91         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create thread: %s\n", SDL_GetError());
    92         quit(1);
    93     }
    94     raise(SIGTERM);
    95 
    96     SDL_Quit();                 /* Never reached */
    97     return (0);                 /* Never reached */
    98 }