Merge "Looper: Drop default parameters in favor of a safer overload." into gingerbread

     * This method does not return until it has finished invoking the appropriate callbacks

     * for all file descriptors that were signalled.

     */

    int pollOnce(int timeoutMillis,

            int* outFd = NULL, int* outEvents = NULL, void** outData = NULL);

    int pollOnce(int timeoutMillis, int* outFd, int* outEvents, void** outData);

    inline int pollOnce(int timeoutMillis) {

        return pollOnce(timeoutMillis, NULL, NULL, NULL);

    }

    /**

     * Like pollOnce(), but performs all pending callbacks until all

     * data has been consumed or a file descriptor is available with no callback.

     * This function will never return ALOOPER_POLL_CALLBACK.

     */

    int pollAll(int timeoutMillis,

            int* outFd = NULL, int* outEvents = NULL, void** outData = NULL);

    int pollAll(int timeoutMillis, int* outFd, int* outEvents, void** outData);

    inline int pollAll(int timeoutMillis) {

        return pollAll(timeoutMillis, NULL, NULL, NULL);

    }

    /**

     * Wakes the poll asynchronously.

     * This method can be called on any thread.

     * This method may block briefly if it needs to wake the poll.

     */

    int addFd(int fd, int ident,

            int events, ALooper_callbackFunc callback, void* data = NULL);

    int addFd(int fd, int ident, int events, ALooper_callbackFunc callback, void* data);

    /**

     * Removes a previously added file descriptor from the looper.