[Boost-users] [ASIO] Thread safety of socket.write_some & socket.read_some

Subject: [Boost-users] [ASIO] Thread safety of socket.write_some & socket.read_some
From: James12 (james791d_at_[hidden])
Date: 2008-10-29 08:50:02

Hi,

I'm a beginner in using boost asio library (and coding c++ too :).

I am currently trying to code a simple application that handles some
communication with a server through TCP/IP connection.

My I/O Class has two threads that use synchronous socket operations on the
same socket (which is a member of the class)

Main thread:
CApplication::Close()
- socket.close()
CApplication::Open()
- socket.open(boost::asio::ip::tcp::v4());
- socket.write_some(boost::asio::buffer(initial_command));
- socket.read_some(boost::asio::buffer(initial_command_reply));
CApplication::Write(data from another class)
- m_Socket.write_some

Workerthread:
CApplication::thread_Run()
do
{
  - socket.read_some(boost::asio::buffer((void *)&character, 1));
  - package bytes to messages and pass them on to another class
}
while (!bClosed)

My question is that is it safe to call write_some and read_some from
different threads without synchronization.

The application is now working w/o problems but I need to be sure that this
is a safe way to do this before continuing development.

Thanks for your reply,
James 
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