/* User Type definition */
typedef void(*callback)(void);
typedef struct threadargs
{
    callback cb;
} threadargs;

/**
 * startScanner - Configure scanner and start listening scanner until there is bar code to roll up
 * @vCallback: The function to call when a bar code is received from serial port
 */
void startScanner(void (*vCallback)(void))
{
    threadargs ta = {vCallback};
    if(pthread_create(&scannerThread, NULL, scannerThreadFunc, &ta))
    {
        printf("Thread creation fails!\n");
    }
}

static void *scannerThreadFunc(void *arg)
{
    s8 readBuf[MAX_SCANNER_SIZE];
    s32 bytesRead;
    threadargs *ta = arg;

    while(1)
    {
        bytesRead = read(fd, readBuf, MAX_SCANNER_SIZE);
        if(bytesRead == -1)
        {
            printf("No Read\n");
        }
        else
        {
            ta->cb();
            memset(readBuf, '\0', MAX_SCANNER_SIZE);
        }
    }
    pthread_exit(NULL);
}

void vCallbackFunc(void)
{
    printf("Callback function\n");
}


int main(void)
{
    startScanner(vCallbackFunc);
    pthread_join(scannerThread, NULL);
    return 0;
}