tree 3eeaa9c346cecb27e4de8f5db596a8bf4a929f23
parent 905682a19609e862633f01e69bec58384df2cdf7
author Jeff Brown <jeffbrown@google.com> 1284768083 -0700
committer Alex Ray <aray@google.com> 1375217814 -0700

Reduce lock thrashing in native Looper.

In the common case, there is nothing interesting happening on the native
Looper besides occasional wake ups.  There is no point grabbing the
semaphore then.

Change-Id: Ib5c426d0e158dfa37891b7ff5537b6f833592fad