tree 5970e1add27e0e5d77dbaa7c9901a31447b4852d
parent c48bb61e123e7319a4d3ded868de3c25b4e2c6df
author Justin Chuang <jchuang@chromium.org> 1369116437 +0800
committer Justin Chuang <jchuang@chromium.org> 1369142793 -0700

CHERRY-PICK: Add signal handler in camera test fixture

The current autotest framework doesn't register signal handler by
default.  So it doesn't release python-level resources once a test is
killed with SIGTERM (for example, OpenCV doesn't release camera device
correctly with SIGTERM).

BUG=chrome-os-partner:19583
TEST=Manually
1. Run the test
2. Stop the test on the left pane when camera is capturing images.
3. On some platform, camera may stop working if it was not closed properly.

Change-Id: I40863e69a8541338e0aad0ec0c45273fdd5518fc
(cherry picked from commit 6eb701c09dbec9a4b330824ec1523d3a5c52bd4d)
Reviewed-on: https://gerrit.chromium.org/gerrit/56019
Commit-Queue: Justin Chuang <jchuang@chromium.org>
Reviewed-by: Justin Chuang <jchuang@chromium.org>
Tested-by: Justin Chuang <jchuang@chromium.org>