barrier/server/CServerProtocol.cpp

#include "CServerProtocol.h"
#include "CServerProtocol1_0.h"
#include "ProtocolTypes.h"
#include "XSynergy.h"
#include "IOutputStream.h"
#include <cstdio>

//
// CServerProtocol
//

CServerProtocol::CServerProtocol(CServer* server, const CString& client,
				IInputStream* input, IOutputStream* output) :
	m_server(server),
	m_client(client),
	m_input(input),
	m_output(output)
{
	assert(m_server != NULL);
	assert(m_input  != NULL);
	assert(m_output != NULL);
}

CServerProtocol::~CServerProtocol()
{
	// do nothing
}

CServer*
CServerProtocol::getServer() const
{
	return m_server;
}

CString
CServerProtocol::getClient() const
{
	return m_client;
}

IInputStream*
CServerProtocol::getInputStream() const
{
	return m_input;
}

IOutputStream*
CServerProtocol::getOutputStream() const
{
	return m_output;
}

IServerProtocol*
CServerProtocol::create(SInt32 major, SInt32 minor,
				CServer* server, const CString& client,
				IInputStream* input, IOutputStream* output)
{
	// disallow invalid version numbers
	if (major < 0 || minor < 0) {
		throw XIncompatibleClient(major, minor);
	}

	// disallow connection from test versions to release versions
	if (major == 0 && kProtocolMajorVersion != 0) {
		throw XIncompatibleClient(major, minor);
	}

	// hangup (with error) if version isn't supported
	if (major > kProtocolMajorVersion ||
		(major == kProtocolMajorVersion && minor > kProtocolMinorVersion)) {
		throw XIncompatibleClient(major, minor);
	}

	// create highest version protocol object not higher than the
	// given version.
	return new CServerProtocol1_0(server, client, input, output);
}