Re: [asio-users] async_receive hangs

[Яков К. <jac...@gm...>]

A little fix:
4. server receives this message;
5. server receives the message from #2 (without delays).
is incorrect.  Actually, the order is preserved.

but the delay is still present with no obvious reason.

From: Яков Каабак 
Sent: Thursday, December 25, 2014 12:30 PM
To: asi...@li... 
Subject: Fw: [asio-users] async_receive hangs

Thank you for response.
First I would like to add something to description of my situation:
1. All that takes place in Windows 7;
2. I use SSL via boost::asio::ssl::stream (maybe that matters). Therefore, all the async_receive are called by SSL engine, not by my code. What I use is async_read function. To read the message I use two calls to async_read: first read the 4 byte “header” that contains the length of the message, second (in the completion handler) I read the message body.

I was a bit incorrect about timer. There are two timers: on server side and on client side. Server-side timer is currently disabled. One min timer is client timer. Its work is simple: I use async_wait on this timer; hanlder sends a dummy message to the server and sets the timer again. (To be exact, the order is opposite: first set the timer, then send the message.)

And now the order of events is as follows:
1. server issues the async_read to the boost::asio::ssl::stream; the handler tracker shows that the async_receive is active;
2. client sends the (actual) message; server doesn’t receive it – still waits in async_receive;
3. 1 min timer fires; client sends the dummy message;
4. server receives this message;
5. server receives the message from #2 (without delays).