Ensure that all socket writes are protected with deadlines.
For connection Close(), also use deadlines since in case of TLS,
the Close() will send an alert (do a write) if the handshake was
completed. If the peer is not reading, this would cause the Close()
to hang.
Introduce sleep when checking activity updates. I had fixed it
originally for Windows and then made it for all platform recently
but only for the publish case. I missed the subscribe test.
When processing a connect request, there was a risk of race condition
when the server was being shutdown. Capture fields that are checked
under lock and lock when setting the route's remote ID.
Resolves#255
-Test coverage was no longer triggered due to the check for BUILD_GOOS
environment variable that was removed. Removed the check.
-Re-run test package with server code coverage.
-Remove unused functions in test.go.
-Add test for a function in test.go.
-Add missing parse +OK test.
Refactor the way client is initialized. We need to ensure that
clients are not added to the clients map and readLoop started if
the server is in the process of being shutdown otherwise there
is a chance that the server already gathered the list of connections
to close and this one would not be included, leaving a readLoop
running.
Same occurs for routes, with the complexity that the readLoop is
started well before the route connection is added to the server
routes' list. We need a temporary map that contains those connections
to be able to close them on server Shutdown.
Fixed some flapping tests.
We need to make sure that when Shutdown() returns, routes go routines
that try to connect or reconnect have returned. Otherwise, this may
affect tests running one after the other (a server from one test
may connect to a server in the next test).
