tree 7f9ad81fb0c0e70cc0a24213d59b4ba5fc5735b7
parent cfb364952e96e74e65183e4fbfb67185b4319998
author Hansong Zhang <hsz@google.com> 1573259657 -0800
committer Hansong Zhang <hsz@google.com> 1573595595 -0800

L2CAP: Use new event stream model

Move event handling logic to client code for flexibility. Instead of
having multiple streams and requirements for subscribing and
unsubscribing a stream, server pushes all events to the stream, and let
the client fetch all of them at the same time. Adding an event handler
in client code which allows callbacks upon receiving an event.

Rewrote the existing L2CAP cert tests and improved the stability.

Next step is to migrate this new event stream model to other modules and
facade code.

Also handle command timeout properly (L2CAP/COS/CED/BV-08-C).

Bug: 144305062
Bug: 141557006
Test: cert/run_cert.sh
Change-Id: I2bea1c7c29ce941e1c357273cca853a665c67baa