test

MediaPlayer::~MediaPlayer()
{
    LOGV("destructor");
    removeObitRecipient(this);
    disconnect();
    IPCThreadState::self()->flushCommands();
}

void MediaPlayer::disconnect()
{
    LOGV("disconnect");
    sp p;
    {
        Mutex::Autolock _l(mLock);
        p = mPlayer;
        mPlayer.clear();
    }

    if (p != 0) {
        p->disconnect();
    }
}

// always call with lock held
void MediaPlayer::clear_l()
{
    mDuration = -1;
    mCurrentPosition = -1;
    mSeekPosition = -1;
    mVideoWidth = mVideoHeight = 0;
}

神奇的preprocessor

gcc -x c++ -E -P