Re: [Boost-users] [ASIO] Windows native type for ASIO serial port?

Subject: Re: [Boost-users] [ASIO] Windows native type for ASIO serial port?
From: Christoph Gysin (christoph.gysin_at_[hidden])
Date: 2009-03-30 10:46:22

> I'm having trouble with my serial communication across the serial port, and
> want to get more diagnostic information by going to the native level. The
> serial port hangs occasionally on a synchronous read_some call, and I
> haven't been able to figure out why. Ideally, I'd like to build a timeout
> into the synchronous call.

AFAIK read_some() should only block if there is no data to read at
all. You could check for that with:

boost::asio::socket_base::bytes_readable command(true);
socket.io_control(command);
std::size_t bytes_readable = command.get();

Or you implement your own read() function with async_read() and
deadline_timer, like here:
http://lists.boost.org/Archives/boost/2007/04/120339.php

Chris
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