Implements cdc_stream stop-service. Also fixes an issue in the
BackgroundService implementation where Exit() would deadlock since
server shutdown waits for all RPCs to exit.
Starts the streaming service if it's not up and running. This required
adding the ability to run a detached process. By default, all child
processes are killed when the parent process exits. Since detached
child processes don't run with a console, they need to create sub-
processes with CREATE_NO_WINDOW since otherwise a new console pops up,
e.g. for every ssh command.
Polls for 20 seconds while the service starts up. For this purpose,
a BackgroundServiceClient is added. This will be reused in a future CL
by a new stop-service command to exit the service.
Also adds --service-port as additional argument to start-service.
So far, errors from the remote netstat process would only be logged in
the asset stream service, for instance when SSH auth failed. However,
the errors were not shown to the client, and that's the most important
thing.
Also adds some feedback to cdc_stream in case of success.
Implements the cdc_stream client and adjusts asset streaming in
various places to work better outside of a GGP environment.
This CL tries to get quoting for SSH commands right. It also brings
back the ability to start a streaming session from
asset_stream_manager.
Also cleans up Bazel targets setup. Since the sln file is now in root,
it is no longer necessary to prepend ../ to relative filenames to
make clicking on errors work.
