7寸屏目前问题

1、音频播放死循环导致卡顿

while(1)
    {
        if(play_flag)
        {
            GPIOManager::getInstance().Set_PI1_L();
            msleep(2);
            if(new_music_flag)
            {
                if(music_fd)close(music_fd);
                a.append(Music_Path_File);
                pt=a.data();
                music_fd = ::open(pt, O_RDONLY, 0);
                new_music_flag=0;
                music_size= ::lseek(music_fd,0L,SEEK_END);
                qDebug()<<"music_size"<<music_size;
                music_progress=0;
                ::lseek(music_fd,0L,SEEK_SET);
                cnter = ::read(music_fd, buffer, 2048);
                qDebug()<<"cnter:"<<cnter;
                read(music_fd, buffer, 2048);
                ::lseek(music_fd,0L,SEEK_CUR);
            }

            if(!suspend)
            {
                cnt = ::read(music_fd, buf, 2048);
                if(cnt>0)
                {
                    ::write(audio_fd, buf, cnt);
                    music_progress+=cnt;
                }
                else
                {
                    play_flag=0;
                    qDebug() << "play end";
                    close(music_fd);
                    msleep(2);
                    GPIOManager::getInstance().Set_PI1_H();
                }
            }else
            {
                this->usleep(100);
            }

        }else
        {
            this->usleep(100);
        }
    }

2、WIFI 扫描导致的卡顿问题

void  WifiCmd::run(){
    ms_cunt=0;
    stopped=false;
    while(!stopped){
        msleep(100);
        switch (cmd_state) {
        case 0:
            ms_cunt=0;
            //msleep(3000);
            break;
        case 1:
            qDebug()<<"WifiCmd::run()--scan_wifi()";
            ms_cunt=0;
            scan_wifi();
            cmd_state=3;
            break;
        case 2:
            qDebug()<<"WifiCmd::run()--start_wifi()";
            ms_cunt=0;
            start_wifi();
            // Restart_wifi();
            cmd_state=0;
            break;
        case 3:
            ms_cunt++;
            if(ms_cunt>200){
                ms_cunt=0;
                qDebug()<<"WifiCmd::run()--update_signal()"<<QThread::currentThreadId();
                update_signal();
            }
            //cmd_state=0;
            break;
        default:
            break;
        }
    }
}