Read all available data in serial port with boost asio

boost, boost-asio, serial-port

Solution

Try this:

boost::asio::read(
    sock,
    boost::asio::buffer(buf),
    boost::asio::transfer_at_least(1),
    ec
);

Problem

I cannot find a way to make what seems to be one of the simplest thing with the boost asio library : Read all the data available in a serial port For example in Qt there is a `readAll()` method from `QextSerialPort`. Actually, all the examples I found are about reading a certain amount of data, or multi threaded. In my case I need it to read the data from a GSM controller. The response size depends on the sent command and the controller context so I can't specify it.

Original source