pub unsafe extern "C" fn grpc_channel_watch_connectivity_state(
channel: *mut grpc_channel,
last_observed_state: grpc_connectivity_state,
deadline: gpr_timespec,
cq: *mut grpc_completion_queue,
tag: *mut c_void
)Expand description
Watch for a change in connectivity state. Once the channel connectivity state is different from last_observed_state, tag will be enqueued on cq with success=1. If deadline expires BEFORE the state is changed, tag will be enqueued on cq with success=0.