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
abb9cf2dc2
Make trying to perform an operation on a shut-down completion queue throw an error, and add tests for that.