// 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
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
+// ==========================================================================
+// declarations
+// ==========================================================================
+
+// --------------------------------------------------------------------------
+// headers
+// --------------------------------------------------------------------------
+
#ifdef __GNUG__
#pragma implementation "sckipc.h"
#endif
#include "wx/defs.h"
#endif
-#if wxUSE_SOCKETS
+#if wxUSE_SOCKETS && wxUSE_IPC && wxUSE_STREAMS
#include <stdlib.h>
#include <stdio.h>
#include "wx/socket.h"
#include "wx/sckipc.h"
+#include "wx/module.h"
+#include "wx/event.h"
#include "wx/log.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
-IMPLEMENT_DYNAMIC_CLASS(wxTCPServer, wxServerBase)
-IMPLEMENT_DYNAMIC_CLASS(wxTCPClient, wxClientBase)
-IMPLEMENT_CLASS(wxTCPConnection, wxConnectionBase)
+// --------------------------------------------------------------------------
+// macros and constants
+// --------------------------------------------------------------------------
// It seems to be already defined somewhere in the Xt includes.
#ifndef __XT__
// Message codes
-enum {
+enum
+{
IPC_EXECUTE = 1,
IPC_REQUEST,
IPC_POKE,
};
#endif
-void Server_OnRequest(wxSocketServer& server,
- wxSocketNotify evt,
- char *cdata);
-void Client_OnRequest(wxSocketBase& sock,
- wxSocketNotify evt,
- char *cdata);
-// ---------------------------------------------------------------------------
+// All sockets will be created with the following flags
+#define SCKIPC_FLAGS (wxSOCKET_WAITALL)
+
+// --------------------------------------------------------------------------
+// wxTCPEventHandler stuff (private class)
+// --------------------------------------------------------------------------
+
+class wxTCPEventHandler : public wxEvtHandler
+{
+public:
+ wxTCPEventHandler() : wxEvtHandler() {};
+
+ void Client_OnRequest(wxSocketEvent& event);
+ void Server_OnRequest(wxSocketEvent& event);
+
+ DECLARE_EVENT_TABLE()
+};
+
+enum
+{
+ _CLIENT_ONREQUEST_ID = 1000,
+ _SERVER_ONREQUEST_ID
+};
+
+static wxTCPEventHandler *gs_handler = NULL;
+
+// ==========================================================================
+// implementation
+// ==========================================================================
+
+IMPLEMENT_DYNAMIC_CLASS(wxTCPServer, wxServerBase)
+IMPLEMENT_DYNAMIC_CLASS(wxTCPClient, wxClientBase)
+IMPLEMENT_CLASS(wxTCPConnection, wxConnectionBase)
+
+// --------------------------------------------------------------------------
// wxTCPClient
-// ---------------------------------------------------------------------------
+// --------------------------------------------------------------------------
-wxTCPClient::wxTCPClient ()
- : wxClientBase()
+wxTCPClient::wxTCPClient () : wxClientBase()
{
}
const wxString& server_name,
const wxString& topic)
{
- wxSocketClient *client = new wxSocketClient();
+ wxSocketClient *client = new wxSocketClient(SCKIPC_FLAGS);
wxSocketStream *stream = new wxSocketStream(*client);
wxDataInputStream *data_is = new wxDataInputStream(*stream);
wxDataOutputStream *data_os = new wxDataOutputStream(*stream);
if (connection)
{
- if (!connection->IsKindOf(CLASSINFO(wxTCPConnection)))
- {
- delete connection;
- // and fall through to delete everything else
- }
- else
+ if (connection->IsKindOf(CLASSINFO(wxTCPConnection)))
{
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->SetEventHandler(*gs_handler, _CLIENT_ONREQUEST_ID);
+ client->SetClientData(connection);
client->SetNotify(wxSOCKET_INPUT_FLAG | wxSOCKET_LOST_FLAG);
client->Notify(TRUE);
return connection;
}
+ else
+ {
+ delete connection;
+ // and fall through to delete everything else
+ }
}
}
}
- // something went wrong
+ // Something went wrong, delete everything
delete data_is;
delete data_os;
delete stream;
- delete client;
+ client->Destroy();
+
return NULL;
}
wxConnectionBase *wxTCPClient::OnMakeConnection()
{
- return new wxTCPConnection;
+ return new wxTCPConnection();
}
-// ---------------------------------------------------------------------------
+// --------------------------------------------------------------------------
// wxTCPServer
-// ---------------------------------------------------------------------------
+// --------------------------------------------------------------------------
-wxTCPServer::wxTCPServer ()
- : wxServerBase()
+wxTCPServer::wxTCPServer () : wxServerBase()
{
+ m_server = NULL;
}
-bool wxTCPServer::Create(const wxString& server_name)
+bool wxTCPServer::Create(const wxString& serverName)
{
+ // Destroy previous server, if any
+ if (m_server)
+ {
+ m_server->SetClientData(NULL);
+ m_server->Destroy();
+ m_server = NULL;
+ }
+
+ // wxIPV4address defaults to INADDR_ANY:0
wxIPV4address addr;
- wxSocketServer *server;
+ addr.Service(serverName);
- addr.LocalHost(); // GRG
- addr.Service(server_name);
+ // Create a socket listening on the specified port
+ m_server = new wxSocketServer(addr, SCKIPC_FLAGS);
- // Create a socket listening on specified port
- server = new wxSocketServer(addr);
- server->Callback((wxSocketBase::wxSockCbk)Server_OnRequest);
- server->CallbackData((char *)this);
- server->SetNotify(wxSOCKET_CONNECTION_FLAG);
- server->Notify(TRUE); // GRG
+ if (!m_server->Ok())
+ {
+ m_server->Destroy();
+ m_server = NULL;
+
+ return FALSE;
+ }
+
+ m_server->SetEventHandler(*gs_handler, _SERVER_ONREQUEST_ID);
+ m_server->SetClientData(this);
+ m_server->SetNotify(wxSOCKET_CONNECTION_FLAG);
+ m_server->Notify(TRUE);
return TRUE;
}
wxTCPServer::~wxTCPServer()
{
+ if (m_server)
+ {
+ m_server->SetClientData(NULL);
+ m_server->Destroy();
+ }
}
wxConnectionBase *wxTCPServer::OnAcceptConnection( const wxString& WXUNUSED(topic) )
return new wxTCPConnection();
}
-// ---------------------------------------------------------------------------
+// --------------------------------------------------------------------------
// wxTCPConnection
-// ---------------------------------------------------------------------------
+// --------------------------------------------------------------------------
-wxTCPConnection::wxTCPConnection ()
- : wxConnectionBase(),
- m_sock(NULL), m_sockstrm(NULL), m_codeci(NULL), m_codeco(NULL)
+wxTCPConnection::wxTCPConnection () : wxConnectionBase()
{
+ m_sock = NULL;
+ m_sockstrm = NULL;
+ m_codeci = NULL;
+ m_codeco = NULL;
}
wxTCPConnection::wxTCPConnection(char * WXUNUSED(buffer), int WXUNUSED(size))
wxTCPConnection::~wxTCPConnection ()
{
- wxDELETE(m_sock);
wxDELETE(m_codeci);
wxDELETE(m_codeco);
wxDELETE(m_sockstrm);
+
+ if (m_sock)
+ {
+ m_sock->SetClientData(NULL);
+ m_sock->Destroy();
+ }
}
void wxTCPConnection::Compress(bool WXUNUSED(on))
{
// Send the the disconnect message to the peer.
m_codeco->Write8(IPC_DISCONNECT);
+ m_sock->Notify(FALSE);
m_sock->Close();
return TRUE;
m_codeco->Write8(format);
if (size < 0)
- size = strlen(data) + 1; // includes final NUL
+ size = wxStrlen(data) + 1; // includes final NUL
m_codeco->Write32(size);
m_sockstrm->Write(data, size);
m_codeco->Write8(format);
if (size < 0)
- size = strlen(data) + 1; // includes final NUL
+ size = wxStrlen(data) + 1; // includes final NUL
m_codeco->Write32(size);
m_sockstrm->Write(data, size);
m_codeco->Write8(format);
if (size < 0)
- size = strlen(data) + 1; // includes final NUL
+ size = wxStrlen(data) + 1; // includes final NUL
m_codeco->Write32(size);
m_sockstrm->Write(data, size);
return TRUE;
}
-void Client_OnRequest(wxSocketBase& sock, wxSocketNotify evt,
- char *cdata)
+// --------------------------------------------------------------------------
+// wxTCPEventHandler (private class)
+// --------------------------------------------------------------------------
+
+BEGIN_EVENT_TABLE(wxTCPEventHandler, wxEvtHandler)
+ EVT_SOCKET(_CLIENT_ONREQUEST_ID, wxTCPEventHandler::Client_OnRequest)
+ EVT_SOCKET(_SERVER_ONREQUEST_ID, wxTCPEventHandler::Server_OnRequest)
+END_EVENT_TABLE()
+
+void wxTCPEventHandler::Client_OnRequest(wxSocketEvent &event)
{
+ wxSocketBase *sock = event.GetSocket();
+ wxSocketNotify evt = event.GetSocketEvent();
+ wxTCPConnection *connection = (wxTCPConnection *)(sock->GetClientData());
+
+ // This socket is being deleted; skip this event
+ if (!connection)
+ return;
+
int msg = 0;
- wxTCPConnection *connection = (wxTCPConnection *)cdata;
wxDataInputStream *codeci;
wxDataOutputStream *codeco;
wxSocketStream *sockstrm;
wxString topic_name = connection->m_topic;
wxString item;
- // The socket handler signals us that we lost the connection: destroy all.
+ // We lost the connection: destroy everything
if (evt == wxSOCKET_LOST)
{
- sock.Close();
+ sock->Notify(FALSE);
+ sock->Close();
connection->OnDisconnect();
return;
}
}
case IPC_DISCONNECT:
{
- sock.Close();
+ sock->Notify(FALSE);
+ sock->Close();
connection->OnDisconnect();
break;
}
}
}
-void Server_OnRequest(wxSocketServer& server,
- wxSocketNotify evt, char *cdata)
+void wxTCPEventHandler::Server_OnRequest(wxSocketEvent &event)
{
- wxTCPServer *ipcserv = (wxTCPServer *)cdata;
- wxSocketStream *stream;
- wxDataInputStream *codeci;
- wxDataOutputStream *codeco;
+ wxSocketServer *server = (wxSocketServer *) event.GetSocket();
+ wxTCPServer *ipcserv = (wxTCPServer *) server->GetClientData();
- if (evt != wxSOCKET_CONNECTION)
+ // This socket is being deleted; skip this event
+ if (!ipcserv)
return;
- /* Accept the connection, getting a new socket */
- wxSocketBase *sock = server.Accept();
+ if (event.GetSocketEvent() != wxSOCKET_CONNECTION)
+ return;
+
+ // Accept the connection, getting a new socket
+ wxSocketBase *sock = server->Accept();
if (!sock->Ok())
+ {
+ sock->Destroy();
return;
+ }
- stream = new wxSocketStream(*sock);
- codeci = new wxDataInputStream(*stream);
- codeco = new wxDataOutputStream(*stream);
+ wxSocketStream *stream = new wxSocketStream(*sock);
+ wxDataInputStream *codeci = new wxDataInputStream(*stream);
+ wxDataOutputStream *codeco = new wxDataOutputStream(*stream);
int msg;
msg = codeci->Read8();
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->IsKindOf(CLASSINFO(wxTCPConnection)))
{
- delete new_connection;
- codeco->Write8(IPC_FAIL);
+ // 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->SetEventHandler(*gs_handler, _CLIENT_ONREQUEST_ID);
+ sock->SetClientData(new_connection);
+ sock->SetNotify(wxSOCKET_INPUT_FLAG | wxSOCKET_LOST_FLAG);
+ sock->Notify(TRUE);
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
- {
- // Send failure message
- codeco->Write8(IPC_FAIL);
+ else
+ {
+ delete new_connection;
+ // and fall through to delete everything else
+ }
}
}
+
+ // Something went wrong, send failure message and delete everything
+ codeco->Write8(IPC_FAIL);
+
+ delete codeco;
+ delete codeci;
+ delete stream;
+ sock->Destroy();
}
+// --------------------------------------------------------------------------
+// wxTCPEventHandlerModule (private class)
+// --------------------------------------------------------------------------
+
+class WXDLLEXPORT wxTCPEventHandlerModule: public wxModule
+{
+ DECLARE_DYNAMIC_CLASS(wxTCPEventHandlerModule)
+
+public:
+ bool OnInit() { gs_handler = new wxTCPEventHandler(); return TRUE; }
+ void OnExit() { wxDELETE(gs_handler); }
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxTCPEventHandlerModule, wxModule)
+
+
#endif
- // wxUSE_SOCKETS
+ // wxUSE_SOCKETS && wxUSE_IPC
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