/////////////////////////////////////////////////////////////////////////////
// Name: sckipc.h
-// Purpose: Interprocess communication
-// Author: Julian Smart/Guilhem Lavaux (big rewrite)
-// Modified by: Guilhem Lavaux 1997
+// 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
// Created: 1993
// RCS-ID: $Id$
-// Copyright: (c) 1993 Julian Smart
-// (c) 1997, 1998 Guilhem Lavaux
+// Copyright: (c) Julian Smart 1993
+// (c) Guilhem Lavaux 1997, 1998
+// (c) 2000 Guillermo Rodriguez <guille@iies.es>
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_SCKIPC_H
virtual ~wxTCPConnection();
// Calls that CLIENT can make
- bool Execute(const wxChar *data, int size = -1,
- wxIPCFormat format = wxIPC_TEXT);
- char *Request(const wxString& item, int *size = NULL,
- wxIPCFormat format = wxIPC_TEXT);
- bool Poke(const wxString& item, wxChar *data, int size = -1,
- wxIPCFormat format = wxIPC_TEXT);
- bool StartAdvise(const wxString& item);
- bool StopAdvise(const wxString& item);
+ virtual bool Execute(const wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
+ virtual bool Execute(const wxString& str) { return Execute(str, -1, 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
- bool Advise(const wxString& item, wxChar *data, int size = -1,
- wxIPCFormat format = wxIPC_TEXT);
+ virtual bool Advise(const wxString& item, wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
// Calls that both can make
- bool Disconnect();
+ virtual bool Disconnect(void);
- // Called when we lost the peer.
- bool OnDisconnect() { return TRUE; }
+ // Callbacks to SERVER - override at will
+ virtual bool OnExecute(const wxString& topic, char *data, int size, wxIPCFormat format) { return FALSE; };
+ virtual char *OnRequest(const wxString& topic, const wxString& item, int *size, wxIPCFormat format) { return NULL; };
+ virtual bool OnPoke(const wxString& topic, const wxString& item, char *data, int size, wxIPCFormat format) { return FALSE; };
+ virtual bool OnStartAdvise(const wxString& topic, const wxString& item) { return FALSE; };
+ virtual bool OnStopAdvise(const wxString& topic, const wxString& item) { return FALSE; };
+
+ // Callbacks to CLIENT - override at will
+ virtual bool OnAdvise(const wxString& topic, const wxString& item, char *data, int size, wxIPCFormat format) { return FALSE; };
+
+ // Callbacks to BOTH
+
+ // Default behaviour is to delete connection and return TRUE
+ virtual bool OnDisconnect(void) { delete this; return TRUE; }
// To enable the compressor
void Compress(bool on);
+
private:
- // to prevent virtual function hiding warnings
- virtual bool Execute(const wxString& str) { return(wxConnectionBase::Execute(str)); };
};
class wxTCPServer: public wxServerBase
virtual ~wxTCPClient();
virtual bool ValidHost(const wxString& host);
- // Call this to make a connection.
- // Returns NULL if cannot.
+ // Call this to make a connection.
+ // Returns NULL if cannot.
virtual wxConnectionBase *MakeConnection(const wxString& host,
const wxString& server,
const wxString& topic);
/////////////////////////////////////////////////////////////////////////////
// Name: sckipc.cpp
// Purpose: Interprocess communication implementation (wxSocket version)
-// Author: Julian Smart, Guilhem Lavaux
+// Author: Julian Smart
// Modified by: Guilhem Lavaux (big rewrite) May 1997, 1998
+// Guillermo Rodriguez (updated for wxSocket v2) Jan 2000
// Created: 1993
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart 1993, Guilhem Lavaux 1997, 1998
+// Copyright: (c) Julian Smart 1993
+// (c) Guilhem Lavaux 1997, 1998
+// (c) 2000 Guillermo Rodriguez <guille@iies.es>
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#include "wx/socket.h"
#include "wx/sckipc.h"
+#include "wx/log.h"
#ifdef __BORLANDC__
#pragma hdrstop
const wxString& server_name,
const wxString& topic)
{
- wxIPV4address addr;
wxSocketClient *client = new wxSocketClient();
wxSocketStream *stream = new wxSocketStream(*client);
- wxDataInputStream data_is(*stream);
- wxDataOutputStream data_os(*stream);
-
- client->SetNotify(wxSOCKET_INPUT_FLAG | wxSOCKET_LOST_FLAG);
+ wxDataInputStream *data_is = new wxDataInputStream(*stream);
+ wxDataOutputStream *data_os = new wxDataOutputStream(*stream);
+
+ wxIPV4address addr;
addr.Service(server_name);
addr.Hostname(host);
- if (!client->Connect(addr)) {
- delete client;
- return NULL;
- }
- client->Notify(FALSE);
-
- // Send topic name, and enquire whether this has succeeded
- unsigned char msg;
+ if (client->Connect(addr))
+ {
+ unsigned char msg;
- data_os.Write8(IPC_CONNECT);
- data_os.WriteString(topic);
+ // Send topic name, and enquire whether this has succeeded
+ data_os->Write8(IPC_CONNECT);
+ data_os->WriteString(topic);
- msg = data_is.Read8();
-
- // OK! Confirmation.
- if (msg == IPC_CONNECT) {
- wxTCPConnection *connection = (wxTCPConnection *)OnMakeConnection ();
- if (connection) {
- if (!connection->IsKindOf(CLASSINFO(wxTCPConnection))) {
- delete connection;
- return NULL;
+ msg = data_is->Read8();
+
+ // OK! Confirmation.
+ if (msg == IPC_CONNECT)
+ {
+ wxTCPConnection *connection = (wxTCPConnection *)OnMakeConnection ();
+
+ if (connection)
+ {
+ if (!connection->IsKindOf(CLASSINFO(wxTCPConnection)))
+ {
+ delete connection;
+ // and fall through to delete everything else
+ }
+ else
+ {
+ connection->m_topic = topic;
+ connection->m_sock = client;
+ connection->m_sockstrm = stream;
+ connection->m_codeci = data_is;
+ connection->m_codeco = data_os;
+ client->Callback(Client_OnRequest);
+ client->CallbackData((char *)connection);
+ client->SetNotify(wxSOCKET_INPUT_FLAG | wxSOCKET_LOST_FLAG);
+ client->Notify(TRUE);
+ return connection;
+ }
}
- connection->m_topic = topic;
- client->Callback(Client_OnRequest);
- client->CallbackData((char *)connection);
- client->Notify(TRUE);
- return connection;
- } else {
- delete client;
- return NULL;
}
- } else {
- delete client;
- return NULL;
}
+
+ // something went wrong
+ delete data_is;
+ delete data_os;
+ delete stream;
+ delete client;
+ return NULL;
}
wxConnectionBase *wxTCPClient::OnMakeConnection()
wxIPV4address addr;
wxSocketServer *server;
+ addr.LocalHost(); // GRG
addr.Service(server_name);
// Create a socket listening on specified port
server = new wxSocketServer(addr);
server->Callback((wxSocketBase::wxSockCbk)Server_OnRequest);
- server->SetNotify(wxSOCKET_CONNECTION_FLAG);
-
server->CallbackData((char *)this);
+ server->SetNotify(wxSOCKET_CONNECTION_FLAG);
+ server->Notify(TRUE); // GRG
return TRUE;
}
return TRUE;
}
-bool wxTCPConnection::Execute (const wxChar *data, int size, wxIPCFormat format)
+bool wxTCPConnection::Execute(const wxChar *data, int size, wxIPCFormat format)
{
if (!m_sock->IsConnected())
return FALSE;
// Prepare EXECUTE message
m_codeco->Write8(IPC_EXECUTE);
m_codeco->Write8(format);
+
if (size < 0)
- m_codeco->WriteString(data);
- else {
- m_codeco->Write32(size);
- m_sockstrm->Write(data, size);
- }
+ size = strlen(data) + 1; // includes final NUL
+
+ m_codeco->Write32(size);
+ m_sockstrm->Write(data, size);
return TRUE;
}
ret = m_codeci->Read8();
if (ret == IPC_FAIL)
return NULL;
- else {
+ else
+ {
size_t s;
char *data = NULL;
m_codeco->Write8(IPC_POKE);
m_codeco->WriteString(item);
m_codeco->Write8(format);
+
if (size < 0)
- m_codeco->WriteString(data);
- else {
- m_codeco->Write32(size);
- m_sockstrm->Write(data, size);
- }
+ size = strlen(data) + 1; // includes final NUL
+
+ m_codeco->Write32(size);
+ m_sockstrm->Write(data, size);
return TRUE;
}
m_codeco->Write8(IPC_ADVISE);
m_codeco->WriteString(item);
m_codeco->Write8(format);
+
if (size < 0)
- m_codeco->WriteString(data);
- else {
- m_codeco->Write32(size);
- m_sockstrm->Write(data, size);
- }
+ size = strlen(data) + 1; // includes final NUL
+
+ m_codeco->Write32(size);
+ m_sockstrm->Write(data, size);
return TRUE;
}
wxString item;
// The socket handler signals us that we lost the connection: destroy all.
- if (evt == wxSOCKET_LOST) {
+ if (evt == wxSOCKET_LOST)
+ {
sock.Close();
connection->OnDisconnect();
return;
sockstrm = connection->m_sockstrm;
msg = codeci->Read8();
- switch (msg) {
- case IPC_EXECUTE: {
+ switch (msg)
+ {
+ case IPC_EXECUTE:
+ {
char *data;
size_t size;
wxIPCFormat format;
delete [] data;
break;
}
- case IPC_ADVISE: {
+ case IPC_ADVISE:
+ {
char *data;
size_t size;
wxIPCFormat format;
delete [] data;
break;
}
- case IPC_ADVISE_START: {
+ case IPC_ADVISE_START:
+ {
item = codeci->ReadString();
bool ok = connection->OnStartAdvise (topic_name, item);
break;
}
- case IPC_ADVISE_STOP: {
+ case IPC_ADVISE_STOP:
+ {
item = codeci->ReadString();
bool ok = connection->OnStopAdvise (topic_name, item);
break;
}
- case IPC_POKE: {
+ case IPC_POKE:
+ {
wxIPCFormat format;
size_t size;
wxChar *data;
break;
}
- case IPC_REQUEST: {
+ case IPC_REQUEST:
+ {
wxIPCFormat format;
item = codeci->ReadString();
int user_size = -1;
char *user_data = connection->OnRequest (topic_name, item, &user_size, format);
- if (user_data) {
+ if (user_data)
+ {
codeco->Write8(IPC_REQUEST_REPLY);
- if (user_size != -1) {
- codeco->Write32(user_size);
- sockstrm->Write(user_data, user_size);
- } else
- codeco->WriteString(user_data);
- } else
+
+ if (user_size == -1)
+ user_size = strlen(user_data) + 1; // includes final NUL
+
+ codeco->Write32(user_size);
+ sockstrm->Write(user_data, user_size);
+ }
+ else
codeco->Write8(IPC_FAIL);
break;
}
- case IPC_DISCONNECT: {
+ case IPC_DISCONNECT:
+ {
sock.Close();
connection->OnDisconnect();
break;
/* Accept the connection, getting a new socket */
wxSocketBase *sock = server.Accept();
- sock->Notify(FALSE);
- sock->SetNotify(wxSOCKET_INPUT_FLAG | wxSOCKET_LOST_FLAG);
+ if (!sock->Ok())
+ return;
stream = new wxSocketStream(*sock);
codeci = new wxDataInputStream(*stream);
codeco = new wxDataOutputStream(*stream);
- if (!sock->Ok())
- return;
-
int msg;
msg = codeci->Read8();
- if (msg == IPC_CONNECT) {
+ if (msg == IPC_CONNECT)
+ {
wxString topic_name;
topic_name = codeci->ReadString();
/* Register new socket with the notifier */
wxTCPConnection *new_connection =
(wxTCPConnection *)ipcserv->OnAcceptConnection (topic_name);
- if (new_connection) {
- if (!new_connection->IsKindOf(CLASSINFO(wxTCPConnection))) {
+ if (new_connection)
+ {
+ if (!new_connection->IsKindOf(CLASSINFO(wxTCPConnection)))
+ {
delete new_connection;
codeco->Write8(IPC_FAIL);
return;
}
// Acknowledge success
codeco->Write8(IPC_CONNECT);
-
new_connection->m_topic = topic_name;
+ new_connection->m_sock = sock;
new_connection->m_sockstrm = stream;
new_connection->m_codeci = codeci;
new_connection->m_codeco = codeco;
sock->Callback(Client_OnRequest);
sock->CallbackData((char *)new_connection);
+ sock->SetNotify(wxSOCKET_INPUT_FLAG | wxSOCKET_LOST_FLAG);
sock->Notify(TRUE);
- } else {
+ }
+ else
+ {
// Send failure message
codeco->Write8(IPC_FAIL);
}
projects / wxWidgets.git / commitdiff
