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1/////////////////////////////////////////////////////////////////////////////
2// Name: sckipc.h
3// Purpose: Interprocess communication implementation (wxSocket version)
4// Author: Julian Smart
5// Modified by: Guilhem Lavaux (big rewrite) May 1997, 1998
6// Guillermo Rodriguez (updated for wxSocket v2) Jan 2000
7// (callbacks deprecated) Mar 2000
8// Created: 1993
9// RCS-ID: $Id$
10// Copyright: (c) Julian Smart 1993
11// (c) Guilhem Lavaux 1997, 1998
12// (c) 2000 Guillermo Rodriguez <guille@iies.es>
13// Licence: wxWindows licence
14/////////////////////////////////////////////////////////////////////////////
15
16#ifndef _WX_SCKIPC_H
17#define _WX_SCKIPC_H
18
19#include "wx/defs.h"
20
21#if wxUSE_SOCKETS && wxUSE_IPC
22
23#include "wx/ipcbase.h"
24#include "wx/socket.h"
25#include "wx/sckstrm.h"
26#include "wx/datstrm.h"
27
28/*
29 * Mini-DDE implementation
30
31 Most transactions involve a topic name and an item name (choose these
32 as befits your application).
33
34 A client can:
35
36 - ask the server to execute commands (data) associated with a topic
37 - request data from server by topic and item
38 - poke data into the server
39 - ask the server to start an advice loop on topic/item
40 - ask the server to stop an advice loop
41
42 A server can:
43
44 - respond to execute, request, poke and advice start/stop
45 - send advise data to client
46
47 Note that this limits the server in the ways it can send data to the
48 client, i.e. it can't send unsolicited information.
49 *
50 */
51
52class WXDLLIMPEXP_FWD_NET wxTCPServer;
53class WXDLLIMPEXP_FWD_NET wxTCPClient;
54
55class WXDLLIMPEXP_NET wxTCPConnection : public wxConnectionBase
56{
57public:
58 wxTCPConnection(void *buffer, size_t size);
59 wxTCPConnection();
60 virtual ~wxTCPConnection();
61
62 // To enable the compressor (NOTE: not implemented!)
63 void Compress(bool on);
64
65
66 // implement base class pure virtual methods
67 virtual const void *Request(const wxString& item,
68 size_t *size = NULL,
69 wxIPCFormat format = wxIPC_TEXT);
70 virtual bool StartAdvise(const wxString& item);
71 virtual bool StopAdvise(const wxString& item);
72 virtual bool Disconnect(void);
73
74protected:
75 virtual bool DoExecute(const void *data, size_t size, wxIPCFormat format);
76 virtual bool DoPoke(const wxString& item, const void *data, size_t size,
77 wxIPCFormat format);
78 virtual bool DoAdvise(const wxString& item, const void *data, size_t size,
79 wxIPCFormat format);
80
81
82 wxSocketBase *m_sock;
83 wxSocketStream *m_sockstrm;
84 wxDataInputStream *m_codeci;
85 wxDataOutputStream *m_codeco;
86 wxString m_topic;
87
88 friend class wxTCPServer;
89 friend class wxTCPClient;
90 friend class wxTCPEventHandler;
91
92 DECLARE_NO_COPY_CLASS(wxTCPConnection)
93 DECLARE_DYNAMIC_CLASS(wxTCPConnection)
94};
95
96class WXDLLIMPEXP_NET wxTCPServer : public wxServerBase
97{
98public:
99 wxTCPServer();
100 virtual ~wxTCPServer();
101
102 // Returns false on error (e.g. port number is already in use)
103 virtual bool Create(const wxString& serverName);
104
105 virtual wxConnectionBase *OnAcceptConnection(const wxString& topic);
106
107 wxTCPConnection *topLevelConnection;
108
109protected:
110 wxSocketServer *m_server;
111
112#ifdef __UNIX_LIKE__
113 // the name of the file associated to the Unix domain socket, may be empty
114 wxString m_filename;
115#endif // __UNIX_LIKE__
116
117 DECLARE_NO_COPY_CLASS(wxTCPServer)
118 DECLARE_DYNAMIC_CLASS(wxTCPServer)
119};
120
121class WXDLLIMPEXP_NET wxTCPClient : public wxClientBase
122{
123public:
124 wxTCPClient();
125 virtual ~wxTCPClient();
126
127 virtual bool ValidHost(const wxString& host);
128
129 // Call this to make a connection. Returns NULL if cannot.
130 virtual wxConnectionBase *MakeConnection(const wxString& host,
131 const wxString& server,
132 const wxString& topic);
133
134 // Callbacks to CLIENT - override at will
135 virtual wxConnectionBase *OnMakeConnection();
136
137private:
138 DECLARE_DYNAMIC_CLASS(wxTCPClient)
139};
140
141#endif // wxUSE_SOCKETS && wxUSE_IPC
142
143#endif // _WX_SCKIPC_H