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Source of test app

SDL_FreeSurface_double_free.c (text/x-csrc), 2.64 KB, created by Dan_ru on 2017-06-16 13:57:12 UTC

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Description:

Filename:

MIME Type:

Creator: Dan_ru

Created: 2017-06-16 13:57:12 UTC

Size: 2.64 KB

patch

obsolete

>#include <stdio.h>
>#include <unistd.h>
>
>#include <SDL.h>
>
>#define THREAD_COUNT 10
>
>
>static int  gExit = 0;
>
>
>static int Thread_Test(int *arg)
>{
>    int             threadID = *arg;
>    SDL_Surface    *pSurface = NULL;
>
>    while( gExit == 0 ) {
>        printf("thread=%d SDL_CreateRGBSurface() ...\n", threadID);
>        //pSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, 2, 2, 32, 0xFF0000, 0xFF00, 0xFF, 0xFF000000);
>        //pSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, 2, 2, 32, 0, 0, 0, 0);
>        pSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, 2, 2, 24, 0xFF0000, 0xFF00, 0xFF, 0xFF000000);
>        printf("thread=%d SDL_CreateRGBSurface() pSurface=%p\n", threadID, pSurface);
>
>        if( pSurface == NULL ) {
>            printf("thread=%d SDL_CreateRGBSurface() ERROR='%s'\n", threadID, SDL_GetError());
>            return -1;
>        }
>
>        printf("thread=%d SDL_FreeSurface()      pSurface=%p ...\n", threadID, pSurface);
>        SDL_FreeSurface(pSurface);
>        printf("thread=%d SDL_FreeSurface()      pSurface=%p OK\n",  threadID, pSurface);
>    }
>
>    return 0;
>}
>
>
>
>int main(void)
>{
>    SDL_Window     *gScreen   = NULL;
>    SDL_Renderer   *gRenderer = NULL;
>    SDL_Thread     *Threads[THREAD_COUNT];
>    int             ThreadArgs[THREAD_COUNT];
>    int             i;
>
>    if( SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_EVENTS) != 0 ) {
>        printf("init_error: Can't initialize SDL: %s\n", SDL_GetError());
>        return -1;
>    }
>
>    gScreen = SDL_CreateWindow("SDL_FreeSurface() double free demo", 0, 0, 640, 480, 0);
>    if( gScreen == NULL ) {
>        printf("SDL_CreateWindow() ERROR='%s'\n", SDL_GetError());
>        return -1;
>    }
>
>    SDL_ShowWindow(gScreen);
>
>    gRenderer = SDL_CreateRenderer(gScreen, -1, SDL_RENDERER_SOFTWARE);
>    if( gRenderer == NULL ) {
>        printf("SDL_CreateRenderer() ERROR='%s'\n", SDL_GetError());
>        return -1;
>    }
>
>    printf("Start threads ...\n");
>
>    for(i=0; i<THREAD_COUNT; i++) {
>        ThreadArgs[i] = i;
>        Threads[i] = SDL_CreateThread( (int(*)(void*)) Thread_Test, "Thread_Test", &ThreadArgs[i]);
>        if( Threads[i] == NULL ) {
>            printf("SDL_CreateThread() ERROR='%s'\n", SDL_GetError());
>            return -1;
>        }
>    }
>
>    printf("Start threads OK\n");
>
>    sleep(100);
>
>    printf("Stop threads ...\n");
>    gExit = 1;
>
>    for(i=0; i<THREAD_COUNT; i++) {
>        SDL_WaitThread(Threads[i], NULL);
>    }
>
>    printf("Stop threads OK\n");
>
>    if( gRenderer != NULL ) {
>        SDL_DestroyRenderer(gRenderer);
>        gRenderer = NULL;
>    }
>
>    if( gScreen != NULL ) {
>        SDL_DestroyWindow(gScreen);
>        gScreen = NULL;
>    }
>
>    SDL_Quit();
>
>    return 0;
>}

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Attachments on bug 3673: 2763

We are currently migrating Bugzilla to GitHub issues.Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.

We are currently migrating Bugzilla to GitHub issues.
Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.
When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.