wxWidgets/include/wx/sckipc.h

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/////////////////////////////////////////////////////////////////////////////
// Name: sckipc.h
// Purpose: Interprocess communication
// Author: Julian Smart/Guilhem Lavaux (big rewrite)
// Modified by: Guilhem Lavaux 1997
// Created: 1993
// RCS-ID: $Id$
// Copyright: (c) 1993 Julian Smart
// (c) 1997, 1998 Guilhem Lavaux
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_SCKIPC_H
#define _WX_SCKIPC_H
#ifdef __GNUG__
#pragma interface
#endif
#include "wx/defs.h"
#include "wx/setup.h"
#include "wx/ipcbase.h"
#include "wx/socket.h"
#include "wx/sckstrm.h"
#include "wx/datstrm.h"
/*
* Mini-DDE implementation
Most transactions involve a topic name and an item name (choose these
as befits your application).
A client can:
- ask the server to execute commands (data) associated with a topic
- request data from server by topic and item
- poke data into the server
- ask the server to start an advice loop on topic/item
- ask the server to stop an advice loop
A server can:
- respond to execute, request, poke and advice start/stop
- send advise data to client
Note that this limits the server in the ways it can send data to the
client, i.e. it can't send unsolicited information.
*
*/
class wxTCPServer;
class wxTCPClient;
class wxTCPConnection: public wxConnectionBase
{
DECLARE_DYNAMIC_CLASS(wxTCPConnection)
protected:
wxSocketBase *m_sock;
wxSocketStream *m_sockstrm;
wxDataInputStream *m_codeci;
wxDataOutputStream *m_codeco;
wxString m_topic;
friend class wxTCPServer;
friend class wxTCPClient;
friend void Client_OnRequest(wxSocketBase&,
wxSocketBase::wxRequestEvent, char *);
friend void Server_OnRequest(wxSocketServer&,
wxSocketBase::wxRequestEvent, char *);
public:
wxTCPConnection(char *buffer, int size);
wxTCPConnection();
virtual ~wxTCPConnection();
// Calls that CLIENT can make
bool Execute(char *data, int size = -1,
wxDataFormat format = wxDF_TEXT);
char *Request(const wxString& item, int *size = NULL,
wxDataFormat format = wxDF_TEXT);
bool Poke(const wxString& item, char *data, int size = -1,
wxDataFormat format = wxDF_TEXT);
bool StartAdvise(const wxString& item);
bool StopAdvise(const wxString& item);
// Calls that SERVER can make
bool Advise(const wxString& item, char *data, int size = -1,
wxDataFormat format = wxDF_TEXT);
// Calls that both can make
bool Disconnect();
// Called when we lost the peer.
bool OnDisconnect() { return TRUE; }
// To enable the compressor
void Compress(bool on);
};
class wxTCPServer: public wxServerBase
{
DECLARE_DYNAMIC_CLASS(wxTCPServer)
public:
wxTCPConnection *topLevelConnection;
wxTCPServer();
virtual ~wxTCPServer();
// Returns FALSE if can't create server (e.g. port number is already in use)
virtual bool Create(const wxString& server_name);
virtual wxConnectionBase *OnAcceptConnection(const wxString& topic);
};
class wxTCPClient: public wxClientBase
{
DECLARE_DYNAMIC_CLASS(wxTCPClient)
public:
wxTCPClient();
virtual ~wxTCPClient();
virtual bool ValidHost(const wxString& host);
// Call this to make a connection.
// Returns NULL if cannot.
virtual wxConnectionBase *MakeConnection(const wxString& host,
const wxString& server,
const wxString& topic);
// Tailor this to return own connection.
virtual wxConnectionBase *OnMakeConnection();
};
#endif // ipcsock.h