CODEWITHSUNDEEP
c++grpc
Tinyden
Tinyden

Reputation: 574

How to set timeout for grpc streaming responses (C++)

I noticed grpc supports deadline setting.

auto deadline = std::chrono::system_clock::now() + std::chrono::seconds(timeout_sec);
context->set_deadline(deadline);

But for the following code

// context_ and stream_ has already been created beforehand.
UpdateClientDeadline(context_.get(), timeout_sec);
stream_->Read(response);

Deadline doesn't work here (I checked by sleeping indefinitely long time at server-side).

I know re-creating stream works. But to keep high performance, that doesn't seem to be a solution to me.

Wondering what's the standard way to implement that in C++ grpc?

Upvotes: 1

Views: 2394

Answers (1)

Doug Fawley
Doug Fawley

Reputation: 1111

Deadlines don't exist in gRPC per-send/receive operation, only per-stream (start to finish). If you need to enforce a deadline per message, you'll need to keep track of that on your own end and cancel the RPC if the deadline is met.

Upvotes: 3

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