I'm using boost::asio::ip::tcp::iostream
to read binary data from TCP stream. I do this like that:
stream.read(reinterpret_cast<char*>(&packetSize), 4); // first 4 bytes is length
stream.read(buffer, packetSize);
Should I just check stream.gcount()
and when next stream.gcount() == 0
that means that no data more available for reading (TCP session is finished)?
The stream members you are looking for are deeply buried in the base class http://en.cppreference.com/w/cpp/io/basic_ios
Use good() and !eof() to see if you got the data. You can set flags on the stream object ( exception() ) to instruct the stream to throw exceptions in case, that an error occurred. This makes handling some times easier.
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