Unlock / free a boost::asio::strand in beast?

From: Markus Bonk (markus_bonk_at_[hidden])
Date: 2022-04-13 08:15:25

Hi,

The application is using beast / websockets to communicate with a websocket server.

A specific onread handler which is initially running on the stream strand needs to read another value from the websocket server to proceed. It sends a message and then waits on a future.
This deadlocks the websocket communication.

If instead of a strand a mutex were being used could unlocking the mutex before sending the message after the data that needs to be protected / requires synchronization has been already acquired and the resources would be available for the next handler.

Is there any way of 'unlocking' the strand i.e. setting the state of the handler's thread so that 'isrunning_on_strand' = false and the stream can continue servicing the incoming messages?

Thanks for any pointers.

Markus

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Markus Bonk
Senior Software Engineer

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