tommi@webrtc.org 0c3e12b7bf Revamp the ProcessThreadImpl implementation.
* Add a new WakeUp method that gives a module a chance to be called back right away on the worker thread.
* Wrote unit tests for the class.
* Significantly reduce the amount of locking.
  - ProcessThreadImpl itself does a lot less locking.
  - Reimplemented the way we keep track of when to make calls to Process.
    This reduces the amount of calls to TimeUntilNextProcess and since most implementations of that function grab a lock, this means less locking.
* Renamed ProcessThread::CreateProcessThread to ProcessThread::Create.
* Added thread checks for Start/Stop.  Threading model of other functions is now documented.
* We now log an error if an implementation of TimeUntilNextProcess returns a negative value (some implementations do, but the method should only return a positive nr of ms).
* Removed the DestroyProcessThread method and instead force callers to use scoped_ptr<> to maintain object lifetime.

BUG=2822
R=henrika@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/35999004

Cr-Commit-Position: refs/heads/master@{#8261}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8261 4adac7df-926f-26a2-2b94-8c16560cd09d
2015-02-06 09:44:45 +00:00
..
2012-10-22 18:19:23 +00:00

INSTRUCTIONS:

- Start with test #3 (Device enumeration) to get an overview of the available
  audio devices.
- Next, proceed with test #4 (Device selection) to get more details about 
  the supported functions for each audio device.
- Verify two-way audio in test #5. 
  Repeat this test for different selections of playout and recording devices.
- More detailed tests (volume, mute etc.) can also be performed using #6-#11.

NOTE:

- Some tests requires that the user opens up the audio mixer dialog and 
  verifies that a certain action (e.g. Mute ON/OFF) is executed correctly.
- Files can be recorded during some tests to enable off-line analysis.
- Full support of 'Default Communication' devices requires Windows 7.
- If a test consists of several sub tests, press any key to start a new sub test.

KNOWN ISSUES:

- Microphone Boost control is not supported on Windows Vista or Windows 7.
- Speaker and microphone volume controls will not work as intended on Windows
  Vista if a 'Default Communication' device is selected in any direction.