threads/event/source/main.c

#include <string.h>
#include <malloc.h>
#include <inttypes.h>
#include <stdio.h>
 
 
#include <3ds.h>
 
Thread threadHandle;
Handle threadRequest;
 
#define STACKSIZE (4 * 1024)
 
volatile bool runThread = true;
 
volatile int threadcount=0;
 
void threadMain(void *arg) {
 
    while(runThread) {
        svcWaitSynchronization(threadRequest, U64_MAX);
        svcClearEvent(threadRequest);
 
        threadcount++;
    }
}
 
int main(int argc, char** argv)
{
    gfxInitDefault();
    consoleInit(GFX_TOP, NULL);
 
    svcCreateEvent(&threadRequest,0);
    threadHandle = threadCreate(threadMain, 0, STACKSIZE, 0x3f, -2, true);
 
    printf("thread handle: %p\n", threadHandle);
 
    // Main loop
    while (aptMainLoop())
    {
        gspWaitForVBlank();
        hidScanInput();
 
        printf("\x1b[6;1H");
        printf("thread counter = %d\n",threadcount);
 
        u32 kDown = hidKeysDown();
        if (kDown & KEY_START)
            break; // break in order to return to hbmenu
 
        if (kDown & KEY_A)
            svcSignalEvent(threadRequest);
 
        // Flush and swap framebuffers
        gfxFlushBuffers();
        gfxSwapBuffers();
    }
 
    // tell thread to exit
    runThread = false;
 
    // signal the thread and wait for it to exit
    svcSignalEvent(threadRequest);
    threadJoin(threadHandle, U64_MAX);
 
    // close event handle
    svcCloseHandle(threadRequest);
 
    gfxExit();
    return 0;
}