How to detect client disconnected on Async Server?

[Venelin Vasilev]

I am using the code from this async example: https://github.com/grpc/grpc/blob/v1.32.0/examples/cpp/helloworld/greeter_async_server.cc

I've made a research and it seems that you can directly catch when a client has been disconnected by any reason. However you can tell that client has been disconnected by turning the feature KeepAlive.

So I added the following lines on the server:

builder.AddListeningPort(server_address, grpc::InsecureServerCredentials()); builder.AddChannelArgument(GRPC_ARG_KEEPALIVE_TIME_MS, 2000); builder.AddChannelArgument(GRPC_ARG_KEEPALIVE_TIMEOUT_MS, 3000); builder.AddChannelArgument(GRPC_ARG_KEEPALIVE_PERMIT_WITHOUT_CALLS, 1);

However how can I now detect the disconnect? Just by adding those there is no way to catch the disconnect. There is no example about such scenario. Where should I listen? on `ServerContext` or where and how to exactly detect it ?

[Aleksandr Yeganov]

Hi Vivas,

Did you ever figure out what the problem was?

Aleks