Function grpcio_sys::grpc_call_cancel

pub unsafe extern "C" fn grpc_call_cancel(
    call: *mut grpc_call, 
    reserved: *mut c_void
) -> grpc_call_error

Cancel an RPC. Can be called multiple times, from any thread. THREAD-SAFETY grpc_call_cancel and grpc_call_cancel_with_status are thread-safe, and can be called at any point before grpc_call_unref is called.