X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7a59be6d9737c850dcb4ab077e1a0e8462a6b690..30c15c1d736cb0942fd735c7e8585b277698a1c3:/src/common/sckipc.cpp?ds=sidebyside

diff --git a/src/common/sckipc.cpp b/src/common/sckipc.cpp
index 9a9b4c62b8..9922b0d04c 100644
--- a/src/common/sckipc.cpp
+++ b/src/common/sckipc.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        sckipc.cpp
+// Name:        src/common/sckipc.cpp
 // Purpose:     Interprocess communication implementation (wxSocket version)
 // Author:      Julian Smart
 // Modified by: Guilhem Lavaux (big rewrite) May 1997, 1998
@@ -26,23 +26,24 @@
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
+#if wxUSE_SOCKETS && wxUSE_IPC && wxUSE_STREAMS
+
+#include "wx/sckipc.h"
+
 #ifndef WX_PRECOMP
-#include "wx/log.h"
+    #include "wx/log.h"
+    #include "wx/event.h"
+    #include "wx/module.h"
 #endif
 
-#if wxUSE_SOCKETS && wxUSE_IPC && wxUSE_STREAMS
-
 #include <stdlib.h>
 #include <stdio.h>
 #include <errno.h>
 
 #include "wx/socket.h"
-#include "wx/sckipc.h"
-#include "wx/module.h"
-#include "wx/event.h"
 
 // --------------------------------------------------------------------------
 // macros and constants
@@ -163,15 +164,15 @@ wxConnectionBase *wxTCPClient::MakeConnection (const wxString& host,
                                                const wxString& serverName,
                                                const wxString& topic)
 {
+  wxSockAddress *addr = GetAddressFromName(serverName, host);
+  if ( !addr )
+      return NULL;
+
   wxSocketClient *client = new wxSocketClient(SCKIPC_FLAGS);
   wxSocketStream *stream = new wxSocketStream(*client);
   wxDataInputStream *data_is = new wxDataInputStream(*stream);
   wxDataOutputStream *data_os = new wxDataOutputStream(*stream);
 
-  wxSockAddress *addr = GetAddressFromName(serverName, host);
-  if ( !addr )
-      return NULL;
-
   bool ok = client->Connect(*addr);
   delete addr;
 
@@ -355,15 +356,17 @@ wxTCPConnection::wxTCPConnection(wxChar *buffer, int size)
 wxTCPConnection::~wxTCPConnection ()
 {
   Disconnect();
-  wxDELETE(m_codeci);
-  wxDELETE(m_codeco);
-  wxDELETE(m_sockstrm);
 
   if (m_sock)
   {
     m_sock->SetClientData(NULL);
     m_sock->Destroy();
   }
+
+  /* Delete after destroy */
+  wxDELETE(m_codeci);
+  wxDELETE(m_codeco);
+  wxDELETE(m_sockstrm);
 }
 
 void wxTCPConnection::Compress(bool WXUNUSED(on))
@@ -378,8 +381,13 @@ bool wxTCPConnection::Disconnect ()
       return true;
   // Send the the disconnect message to the peer.
   m_codeco->Write8(IPC_DISCONNECT);
-  m_sock->Notify(false);
-  m_sock->Close();
+
+  if ( m_sock )
+  {
+      m_sock->Notify(false);
+      m_sock->Close();
+  }
+
   SetConnected(false);
 
   return true;
@@ -423,6 +431,7 @@ wxChar *wxTCPConnection::Request (const wxString& item, int *size, wxIPCFormat f
     size_t s;
 
     s = m_codeci->Read32();
+
     wxChar *data = GetBufferAtLeast( s );
     wxASSERT_MSG(data != NULL,
                  _T("Buffer too small in wxTCPConnection::Request") );
@@ -520,6 +529,9 @@ END_EVENT_TABLE()
 void wxTCPEventHandler::Client_OnRequest(wxSocketEvent &event)
 {
   wxSocketBase *sock = event.GetSocket();
+  if (!sock) {		/* No socket, no glory */
+    return ;
+  }
   wxSocketNotify evt = event.GetSocketEvent();
   wxTCPConnection *connection = (wxTCPConnection *)(sock->GetClientData());
 
@@ -558,6 +570,7 @@ void wxTCPEventHandler::Client_OnRequest(wxSocketEvent &event)
 
     format = (wxIPCFormat)codeci->Read8();
     size = codeci->Read32();
+    
     data = connection->GetBufferAtLeast( size );
     wxASSERT_MSG(data != NULL,
                  _T("Buffer too small in wxTCPEventHandler::Client_OnRequest") );
@@ -669,6 +682,9 @@ void wxTCPEventHandler::Client_OnRequest(wxSocketEvent &event)
 void wxTCPEventHandler::Server_OnRequest(wxSocketEvent &event)
 {
   wxSocketServer *server = (wxSocketServer *) event.GetSocket();
+  if (!server) {		/* No server, Then exit */
+	  return ;
+  }
   wxTCPServer *ipcserv = (wxTCPServer *) server->GetClientData();
 
   // This socket is being deleted; skip this event
@@ -680,6 +696,9 @@ void wxTCPEventHandler::Server_OnRequest(wxSocketEvent &event)
 
   // Accept the connection, getting a new socket
   wxSocketBase *sock = server->Accept();
+  if (!sock) {		/* No socket, no glory */
+	  return ;
+  }
   if (!sock->Ok())
   {
     sock->Destroy();
@@ -752,4 +771,4 @@ IMPLEMENT_DYNAMIC_CLASS(wxTCPEventHandlerModule, wxModule)
 
 
 #endif
-    // wxUSE_SOCKETS && wxUSE_IPC
+   // wxUSE_SOCKETS && wxUSE_IPC && wxUSE_STREAMS