tree 1de131778f26d09d8630c2590d80c92b621ca3bd
parent 90c8ccd35fa8e4eb6f79c1e58fc93d93da0299e6
author Suharsh Sivakumar <suharshs@google.com> 1463449729 -0700
committer Suharsh Sivakumar <suharshs@google.com> 1463449729 -0700

rpc: Automatically relisten when listening fails.

Motivation: BT can cause listening to fail on devices when the BT
settings are turned on and off. We would like clients to connect to
servers once both have BT enabled, regardless of when it is turned on.
The clients BT settings don't matter since the client retries its RPCs,
so when it turns on BT, the RPC will work. But, when the server has its
BT off, the BT classic net.Listener can fail causing the server to stop
listening.

Two flow manager listening cases to handle:
(1) NewListener() fails (i.e. BT classic is turned off before the server
    is created)
(2) listener.Accept() fails (i.e. BT classic is turned off during the
    lifetime of the server)

This CL solves the issue by having the server relisten when listening
fails for either of these reasons (similar to how ProxyListen works at
the moment).

MultiPart: 1/2
Change-Id: Ia559eb1439ddca80a6d43b0cedda09e37423a479