78a1291789
Fix two huge memory leaks in `cgrpc_call` and `cgrpc_handler`. These would all GRPC call objects to never get released, which in turn caused their completion queues and associated file descriptors to never get released. This became apparent after ~3-5k requests on macOS.
Daniel Alm
e68cec0db8
Add a simple API to provide a channel's connectivity state. (See #186.)