Only read from interrupt_fd when data is available.

Only read from interrupt_fd when data is available.

BUG=
R=sgjesse@google.com

Committed: https://code.google.com/p/dart/source/detail?r=30453

[Søren Gjesse, 2013-11-20 09:46:09]

lgtm

https://codereview.chromium.org/77983002/diff/1/runtime/bin/eventhandler_andr...
File runtime/bin/eventhandler_android.cc (right):

https://codereview.chromium.org/77983002/diff/1/runtime/bin/eventhandler_andr...
runtime/bin/eventhandler_android.cc:186: kInterruptMessageSize));
We could even consider reading more than one at the time.

[Anders Johnsen, 2013-11-20 10:26:39]

https://codereview.chromium.org/77983002/diff/1/runtime/bin/eventhandler_andr...
File runtime/bin/eventhandler_android.cc (right):

https://codereview.chromium.org/77983002/diff/1/runtime/bin/eventhandler_andr...
runtime/bin/eventhandler_android.cc:186: kInterruptMessageSize));
On 2013/11/20 09:46:09, Søren Gjesse wrote:
> We could even consider reading more than one at the time.

There should rarely be more than one at a time. I'll keep as is, and track this
in the future.

[Anders Johnsen, 2013-11-20 10:27:09]

Committed patchset #1 manually as r30453 (presubmit successful).