wxWidgets/include/wx/sckipc.h
2002-04-12 15:13:53 +00:00

154 lines
4.3 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: sckipc.h
// Purpose: Interprocess communication implementation (wxSocket version)
// Author: Julian Smart
// Modified by: Guilhem Lavaux (big rewrite) May 1997, 1998
// Guillermo Rodriguez (updated for wxSocket v2) Jan 2000
// (callbacks deprecated) Mar 2000
// Created: 1993
// RCS-ID: $Id$
// Copyright: (c) Julian Smart 1993
// (c) Guilhem Lavaux 1997, 1998
// (c) 2000 Guillermo Rodriguez <guille@iies.es>
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_SCKIPC_H
#define _WX_SCKIPC_H
#ifdef __GNUG__
#pragma interface "sckipc.h"
#endif
#include "wx/defs.h"
#if wxUSE_SOCKETS && wxUSE_IPC
#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 WXDLLEXPORT wxTCPServer;
class WXDLLEXPORT wxTCPClient;
class WXDLLEXPORT wxTCPConnection: public wxConnectionBase
{
DECLARE_DYNAMIC_CLASS(wxTCPConnection)
public:
wxTCPConnection(char *buffer, int size);
wxTCPConnection();
virtual ~wxTCPConnection();
// Calls that CLIENT can make
virtual bool Execute(const wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
virtual char *Request(const wxString& item, int *size = NULL, wxIPCFormat format = wxIPC_TEXT);
virtual bool Poke(const wxString& item, wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
virtual bool StartAdvise(const wxString& item);
virtual bool StopAdvise(const wxString& item);
// Calls that SERVER can make
virtual bool Advise(const wxString& item, wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
// Calls that both can make
virtual bool Disconnect(void);
// Callbacks to BOTH - override at will
// Default behaviour is to delete connection and return TRUE
virtual bool OnDisconnect(void) { delete this; return TRUE; }
// To enable the compressor (NOTE: not implemented!)
void Compress(bool on);
protected:
wxSocketBase *m_sock;
wxSocketStream *m_sockstrm;
wxDataInputStream *m_codeci;
wxDataOutputStream *m_codeco;
wxString m_topic;
friend class wxTCPServer;
friend class wxTCPClient;
friend class wxTCPEventHandler;
private:
//
// We're hiding an Execute method in ConnectionBase
//
virtual bool Execute(const wxString& str)
{ return Execute(str, -1, wxIPC_TEXT); }
};
class wxTCPServer: public wxServerBase
{
DECLARE_DYNAMIC_CLASS(wxTCPServer)
public:
wxTCPConnection *topLevelConnection;
wxTCPServer();
virtual ~wxTCPServer();
// Returns FALSE on error (e.g. port number is already in use)
virtual bool Create(const wxString& serverName);
// Callbacks to SERVER - override at will
virtual wxConnectionBase *OnAcceptConnection(const wxString& topic);
protected:
wxSocketServer *m_server;
#ifdef __UNIX_LIKE__
// the name of the file associated to the Unix domain socket, may be empty
wxString m_filename;
#endif // __UNIX_LIKE__
};
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);
// Callbacks to CLIENT - override at will
virtual wxConnectionBase *OnMakeConnection();
};
#endif // wxUSE_SOCKETS && wxUSE_IPC
#endif // _WX_SCKIPC_H