Merge "Revert to using epoll_wait()." into gingerbread

#include <android/looper.h>

// Currently using poll() instead of epoll_wait() since it does a better job of meeting a

// timeout deadline.  epoll_wait() typically causes additional delays of up to 10ms

// beyond the requested timeout.

//#define LOOPER_USES_EPOLL

// When defined, uses epoll_wait() for polling, otherwise uses poll().

#define LOOPER_USES_EPOLL

// When defined, logs performance statistics for tuning and debugging purposes.

//#define LOOPER_STATISTICS

#ifdef LOOPER_USES_EPOLL