TcpConnection Class Reference

Outgoing TCP/IP client connection to a device that speaks an ASCII telescope protocol (such as a Meade LX200 exposed over a network bridge). More...

#include <TcpConnection.hpp>

Public Member Functions
	TcpConnection (Server &server, const char *host, int port)
Public Member Functions inherited from Connection
	Connection (Server &server, SOCKET fd)
long long int	getServerMinusClientTime (void) const
Public Member Functions inherited from Socket
void	hangup ()
virtual bool	isClosed () const

Additional Inherited Members
Protected Member Functions inherited from Connection
void	performReading (void)
	Receives data from a TCP/IP connection and stores it in the read buffer.
void	performWriting (void)
	Sends the contents of the write buffer over a TCP/IP connection.
void	prepareSelectFds (fd_set &read_fds, fd_set &write_fds, int &fd_max) override
Protected Member Functions inherited from Socket
	Socket (Server &server, SOCKET fd)
int	readNonblocking (void *buf, int count)
int	writeNonblocking (const void *buf, int count)
Protected Attributes inherited from Connection
char	read_buff [120]
char *	read_buff_end
char	write_buff [120]
char *	write_buff_end
Protected Attributes inherited from Socket
Server &	server
SOCKET	fd

Detailed Description

Outgoing TCP/IP client connection to a device that speaks an ASCII telescope protocol (such as a Meade LX200 exposed over a network bridge).

Unlike Connection, whose constructor wraps an already-accepted socket, TcpConnection actively resolves host and connects to port. Once connected it reuses all of Connection's cross-platform, select()-based reading and writing. The socket is switched to non-blocking mode, but the initial connection attempt is performed synchronously (with a timeout) so that isClosed() reflects the real connection state right after construction, mirroring the behaviour of SerialPort.

Constructor & Destructor Documentation

TcpConnection()

TcpConnection::TcpConnection	(	Server &	server,
		const char *	host,
		int	port
	)

Parameters

host	host name or IPv4/IPv6 address of the telescope.
port	TCP port the telescope is listening on.