fixed wxBase and GUI separation for sockets code

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@22668 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/apptrait.h

@@ -24,6 +24,8 @@ class WXDLLIMPEXP_BASE wxMessageOutput;
 class WXDLLEXPORT wxRendererNative;
 class WXDLLIMPEXP_BASE wxString;
 
+extern "C" struct GSocketGUIFunctionsTable;
+
 // ----------------------------------------------------------------------------
 // toolkit information
 // ----------------------------------------------------------------------------
@@ -105,6 +107,11 @@ public:
     // wxBase
     virtual void RemoveFromPendingDelete(wxObject *object) = 0;
 
+#if wxUSE_SOCKETS
+    // return table of GUI callbacks for GSocket code or NULL in wxBase
+    virtual GSocketGUIFunctionsTable* GetSocketGUIFunctionsTable() = 0;
+#endif
+
 
     // return information about what toolkit is running; we need for two things
     // that are both contained in wxBase:
@@ -154,6 +161,9 @@ public:
     virtual wxFontMapper *CreateFontMapper();
 #endif // wxUSE_FONTMAP
     virtual wxRendererNative *CreateRenderer();
+#if wxUSE_SOCKETS
+    virtual GSocketGUIFunctionsTable* GetSocketGUIFunctionsTable();
+#endif
 
 #ifdef __WXDEBUG__
     virtual bool ShowAssertDialog(const wxString& msg);
@@ -181,6 +191,9 @@ public:
     virtual wxFontMapper *CreateFontMapper();
 #endif // wxUSE_FONTMAP
     virtual wxRendererNative *CreateRenderer();
+#if wxUSE_SOCKETS
+    virtual GSocketGUIFunctionsTable* GetSocketGUIFunctionsTable();
+#endif
 
 #ifdef __WXDEBUG__
     virtual bool ShowAssertDialog(const wxString& msg);

include/wx/gsocket.h

@@ -95,8 +95,37 @@ typedef void (*GSocketCallback)(GSocket *socket, GSocketEvent event,
                                 char *cdata);
 
 
+/* Functions tables for internal use by GSocket code: */
+
+#ifndef __WINDOWS__
+struct GSocketBaseFunctionsTable
+{
+    void (*Detected_Read)(GSocket *socket);
+    void (*Detected_Write)(GSocket *socket);
+};
+#endif
+
+struct GSocketGUIFunctionsTable
+{
+    int  (*GUI_Init)(void);
+    void (*GUI_Cleanup)(void);
+    int  (*GUI_Init_Socket)(GSocket *socket);
+    void (*GUI_Destroy_Socket)(GSocket *socket);
+#ifndef __WINDOWS__
+    void (*Install_Callback)(GSocket *socket, GSocketEvent event);
+    void (*Uninstall_Callback)(GSocket *socket, GSocketEvent event);
+#endif
+    void (*Enable_Events)(GSocket *socket);
+    void (*Disable_Events)(GSocket *socket);
+};
+
+
 /* Global initializers */
 
+/* Sets GUI functions callbacks. Must be called *before* GSocket_Init
+   if the app uses async sockets. */
+void GSocket_SetGUIFunctions(struct GSocketGUIFunctionsTable *guifunc);
+
 /* GSocket_Init() must be called at the beginning */
 int GSocket_Init(void);
 

include/wx/msw/gsockmsw.h

@@ -83,8 +83,10 @@ int _GSocket_Send_Dgram(GSocket *socket, const char *buffer, int size);
 
 /* Callbacks */
 
-int  _GSocket_GUI_Init(GSocket *socket);
-void _GSocket_GUI_Destroy(GSocket *socket);
+int  _GSocket_GUI_Init(void);
+void _GSocket_GUI_Cleanup(void);
+int  _GSocket_GUI_Init_Socket(GSocket *socket);
+void _GSocket_GUI_Destroy_Socket(GSocket *socket);
 
 LRESULT CALLBACK _GSocket_Internal_WinProc(HWND, UINT, WPARAM, LPARAM);
 

include/wx/unix/gsockunx.h

@@ -56,6 +56,9 @@ struct _GSocket
   char *m_data[GSOCK_MAX_EVENT];
 
   char *m_gui_dependent;
+
+  /* Function pointers */
+  struct GSocketBaseFunctionsTable *m_functions;
 };
 
 /* Definition of GAddress */
@@ -81,8 +84,11 @@ int _GSocket_Send_Dgram(GSocket *socket, const char *buffer, int size);
 
 /* Callbacks */
 
-int  _GSocket_GUI_Init(GSocket *socket);
-void _GSocket_GUI_Destroy(GSocket *socket);
+int  _GSocket_GUI_Init(void);
+void _GSocket_GUI_Cleanup(void);
+
+int  _GSocket_GUI_Init_Socket(GSocket *socket);
+void _GSocket_GUI_Destroy_Socket(GSocket *socket);
 
 void _GSocket_Enable_Events(GSocket *socket);
 void _GSocket_Disable_Events(GSocket *socket);

src/cocoa/gsockcocoa.c

@@ -12,12 +12,21 @@
 #include <stdlib.h>
 #include "wx/gsocket.h"
 
-int _GSocket_GUI_Init(GSocket *socket)
+int _GSocket_GUI_Init(void)
+{
+    return 1;
+}
+
+void _GSocket_GUI_Cleanup(void)
+{
+}
+
+int _GSocket_GUI_Init_Socket(GSocket *socket)
 {
     return 0;
 }
 
-void _GSocket_GUI_Destroy(GSocket *socket)
+void _GSocket_GUI_Destroy_Socket(GSocket *socket)
 {
 }
 

src/common/appbase.cpp

@@ -457,6 +457,13 @@ void wxConsoleAppTraitsBase::RemoveFromPendingDelete(wxObject * WXUNUSED(object)
     // nothing to do
 }
     
+#if wxUSE_SOCKETS
+GSocketGUIFunctionsTable* wxConsoleAppTraitsBase::GetSocketGUIFunctionsTable()
+{
+    return NULL;
+}
+#endif
+
 // ----------------------------------------------------------------------------
 // wxAppTraits
 // ----------------------------------------------------------------------------

src/common/appcmn.cpp

@@ -497,3 +497,35 @@ void wxGUIAppTraitsBase::RemoveFromPendingDelete(wxObject *object)
     wxPendingDelete.DeleteObject(object);
 }
 
+#if wxUSE_SOCKETS
+
+#if defined(__UNIX__) || defined(__DARWIN__) || defined(__OS2__)
+    #include "wx/unix/gsockunx.h"
+#elif defined(__WINDOWS__)
+    #include "wx/msw/gsockmsw.h"
+#elif defined(__MAC__)
+    #include "wx/mac/gsockmac.h"
+#else
+    #error "Must include correct GSocket header here"
+#endif
+
+GSocketGUIFunctionsTable* wxGUIAppTraitsBase::GetSocketGUIFunctionsTable()
+{
+    static GSocketGUIFunctionsTable table =
+    {
+        _GSocket_GUI_Init,
+        _GSocket_GUI_Cleanup,
+        _GSocket_GUI_Init_Socket,
+        _GSocket_GUI_Destroy_Socket,
+#ifndef __WINDOWS__
+        _GSocket_Install_Callback,
+        _GSocket_Uninstall_Callback,
+#endif
+        _GSocket_Enable_Events,
+        _GSocket_Disable_Events
+    };
+    return &table;
+}
+
+#endif
+

src/common/socket.cpp

@@ -126,6 +126,12 @@ bool wxSocketBase::Initialize()
 {
     if ( !m_countInit++ )
     {
+        wxAppTraits *traits = wxAppConsole::GetInstance() ?
+                              wxAppConsole::GetInstance()->GetTraits() : NULL;
+        GSocketGUIFunctionsTable *functions = 
+            traits ? traits->GetSocketGUIFunctionsTable() : NULL;
+        GSocket_SetGUIFunctions(functions);
+        
         if ( !GSocket_Init() )
         {
             m_countInit--;

src/gtk/gsockgtk.c

@@ -28,12 +28,21 @@ void _GSocket_GDK_Input(gpointer data,
   GSocket *socket = (GSocket *)data;
 
   if (condition & GDK_INPUT_READ)
-    _GSocket_Detected_Read(socket);
+    socket->m_functions->Detected_Read(socket);
   if (condition & GDK_INPUT_WRITE)
-    _GSocket_Detected_Write(socket);
+    socket->m_functions->Detected_Write(socket);
 }
 
-int _GSocket_GUI_Init(GSocket *socket)
+int _GSocket_GUI_Init(void)
+{
+    return 1;
+}
+
+void _GSocket_GUI_Cleanup(void)
+{
+}
+    
+int _GSocket_GUI_Init_Socket(GSocket *socket)
 {
   gint *m_id;
 
@@ -46,7 +55,7 @@ int _GSocket_GUI_Init(GSocket *socket)
   return TRUE;
 }
 
-void _GSocket_GUI_Destroy(GSocket *socket)
+void _GSocket_GUI_Destroy_Socket(GSocket *socket)
 {
   free(socket->m_gui_dependent);
 }

src/gtk1/gsockgtk.c

@@ -28,12 +28,21 @@ void _GSocket_GDK_Input(gpointer data,
   GSocket *socket = (GSocket *)data;
 
   if (condition & GDK_INPUT_READ)
-    _GSocket_Detected_Read(socket);
+    socket->m_functions->Detected_Read(socket);
   if (condition & GDK_INPUT_WRITE)
-    _GSocket_Detected_Write(socket);
+    socket->m_functions->Detected_Write(socket);
 }
 
-int _GSocket_GUI_Init(GSocket *socket)
+int _GSocket_GUI_Init(void)
+{
+    return 1;
+}
+
+void _GSocket_GUI_Cleanup(void)
+{
+}
+    
+int _GSocket_GUI_Init_Socket(GSocket *socket)
 {
   gint *m_id;
 
@@ -46,7 +55,7 @@ int _GSocket_GUI_Init(GSocket *socket)
   return TRUE;
 }
 
-void _GSocket_GUI_Destroy(GSocket *socket)
+void _GSocket_GUI_Destroy_Socket(GSocket *socket)
 {
   free(socket->m_gui_dependent);
 }

src/mac/carbon/gsocket.c

@@ -196,6 +196,11 @@ static void SetDefaultEndpointModes(EndpointRef ep , void *data )
 
 /* Global initialisers */
 
+void GSocket_SetGUIFunctions(struct GSocketGUIFunctionsTable *)
+{
+    // do nothing, wxMac doesn't have wxBase-GUI separation yet
+}
+
 int GSocket_Init()
 {
     return TRUE;

src/mac/gsocket.c

@@ -196,6 +196,11 @@ static void SetDefaultEndpointModes(EndpointRef ep , void *data )
 
 /* Global initialisers */
 
+void GSocket_SetGUIFunctions(struct GSocketGUIFunctionsTable *)
+{
+    // do nothing, wxMac doesn't have wxBase-GUI separation yet
+}
+
 int GSocket_Init()
 {
     return TRUE;

src/motif/gsockmot.c

@@ -22,7 +22,7 @@ static void _GSocket_Motif_Input(XtPointer data, int *fid,
 {
   GSocket *socket = (GSocket *)data;
 
-  _GSocket_Detected_Read(socket);
+  socket->m_functions->Detected_Read(socket);
 }
 
 static void _GSocket_Motif_Output(XtPointer data, int *fid,
@@ -30,10 +30,19 @@ static void _GSocket_Motif_Output(XtPointer data, int *fid,
 {
   GSocket *socket = (GSocket *)data;
 
-  _GSocket_Detected_Write(socket);
+  socket->m_functions->Detected_Write(socket);
 }
 
-int _GSocket_GUI_Init(GSocket *socket)
+int _GSocket_GUI_Init(void)
+{
+    return 1;
+}
+
+void _GSocket_GUI_Cleanup(void)
+{
+}
+
+int _GSocket_GUI_Init_Socket(GSocket *socket)
 {
   int *m_id;
 
@@ -46,7 +55,7 @@ int _GSocket_GUI_Init(GSocket *socket)
   return TRUE;
 }
 
-void _GSocket_GUI_Destroy(GSocket *socket)
+void _GSocket_GUI_Destroy_Socket(GSocket *socket)
 {
   free(socket->m_gui_dependent);
 }

src/msw/gsocket.c

@@ -73,6 +73,62 @@
 #  define SOCKLEN_T int
 #endif
 
+/* Table of GUI-related functions. We must call them indirectly because
+ * of wxBase and GUI separation: */
+
+static struct GSocketGUIFunctionsTable *gs_gui_functions;
+
+#define USE_GUI() (gs_gui_functions != NULL)
+
+/* Define macros to simplify indirection: */
+#define _GSocket_GUI_Init() \
+    if (gs_gui_functions) gs_gui_functions->GUI_Init()
+#define _GSocket_GUI_Cleanup() \
+    if (gs_gui_functions) gs_gui_functions->GUI_Cleanup()
+#define _GSocket_GUI_Init_Socket(socket) \
+    (gs_gui_functions ? gs_gui_functions->GUI_Init_Socket(socket) : 1)
+#define _GSocket_GUI_Destroy_Socket(socket) \
+    if (gs_gui_functions) gs_gui_functions->GUI_Destroy_Socket(socket)
+#define _GSocket_Enable_Events(socket) \
+    if (gs_gui_functions) gs_gui_functions->Enable_Events(socket)
+#define _GSocket_Disable_Events(socket) \
+    if (gs_gui_functions) gs_gui_functions->Disable_Events(socket)
+#define _GSocket_Install_Callback(socket, event) \
+    if (gs_gui_functions) gs_gui_functions->Install_Callback(socket, event)
+#define _GSocket_Uninstall_Callback(socket, event) \
+    if (gs_gui_functions) gs_gui_functions->Uninstall_Callback(socket, event)
+
+/* Global initialisers */
+
+void GSocket_SetGUIFunctions(struct GSocketGUIFunctionsTable *guifunc)
+{
+  gs_gui_functions = guifunc;
+}
+         
+int GSocket_Init(void)
+{
+  WSADATA wsaData;
+  
+  if (gs_gui_functions)
+  {
+      if ( !gs_gui_functions->GUI_Init() )
+        return 0;
+  }
+
+  /* Initialize WinSocket */
+  return (WSAStartup((1 << 8) | 1, &wsaData) == 0);
+}
+
+void GSocket_Cleanup(void)
+{
+  if (gs_gui_functions)
+  {
+      gs_gui_functions->GUI_Cleanup();
+  }
+  
+  /* Cleanup WinSocket */
+  WSACleanup();
+}
 
 /* Constructors / Destructors for GSocket */
 
@@ -101,7 +157,7 @@ GSocket *GSocket_new(void)
   socket->m_establishing    = FALSE;
 
   /* Per-socket GUI-specific initialization */
-  success = _GSocket_GUI_Init(socket);
+  success = _GSocket_GUI_Init_Socket(socket);
   if (!success)
   {
     free(socket);
@@ -123,7 +179,7 @@ void GSocket_destroy(GSocket *socket)
   assert(socket != NULL);
 
   /* Per-socket GUI-specific cleanup */
-  _GSocket_GUI_Destroy(socket);
+  _GSocket_GUI_Destroy_Socket(socket);
 
   /* Check that the socket is really shutdowned */
   if (socket->m_fd != INVALID_SOCKET)

src/msw/gsockmsw.c

@@ -106,9 +106,8 @@ static int firstAvailable;
 
 /* Global initializers */
 
-int GSocket_Init(void)
+int _GSocket_GUI_Init(void)
 {
-  WSADATA wsaData;
   WNDCLASS winClass;
   int i;
 
@@ -141,11 +140,10 @@ int GSocket_Init(void)
   }
   firstAvailable = 0;
 
-  /* Initialize WinSocket */
-  return (WSAStartup((1 << 8) | 1, &wsaData) == 0);
+  return 1;
 }
 
-void GSocket_Cleanup(void)
+void _GSocket_GUI_Cleanup(void)
 {
   /* Destroy internal window */
   DestroyWindow(hWin);
@@ -153,14 +151,11 @@ void GSocket_Cleanup(void)
 
   /* Delete critical section */
   DeleteCriticalSection(&critical);
-
-  /* Cleanup WinSocket */
-  WSACleanup();
 }
 
 /* Per-socket GUI initialization / cleanup */
 
-int _GSocket_GUI_Init(GSocket *socket)
+int _GSocket_GUI_Init_Socket(GSocket *socket)
 {
   int i;
 
@@ -187,7 +182,7 @@ int _GSocket_GUI_Init(GSocket *socket)
   return TRUE;
 }
 
-void _GSocket_GUI_Destroy(GSocket *socket)
+void _GSocket_GUI_Destroy_Socket(GSocket *socket)
 {
   /* Remove the socket from the list */
   EnterCriticalSection(&critical);

src/os2/gsocket.c

@@ -141,16 +141,6 @@ int _System soclose(int);
 #  include "gsocket.h"
 #endif /* __GSOCKET_STANDALONE__ */
 
-/* redefine some GUI-only functions to do nothing in console mode */
-#if defined(wxUSE_GUI) && !wxUSE_GUI
-#  define _GSocket_GUI_Init(socket) (1)
-#  define _GSocket_GUI_Destroy(socket)
-#  define _GSocket_Enable_Events(socket)
-#  define _GSocket_Disable_Events(socket)
-#  define _GSocket_Install_Callback(socket, event)
-#  define _GSocket_Uninstall_Callback(socket, event)
-#endif /* wxUSE_GUI */
-
 /* debugging helpers */
 #ifdef __GSOCKET_DEBUG__
 #  define GSocket_Debug(args) printf args
@@ -158,15 +148,60 @@ int _System soclose(int);
 #  define GSocket_Debug(args)
 #endif /* __GSOCKET_DEBUG__ */
 
+/* Table of GUI-related functions. We must call them indirectly because
+ * of wxBase and GUI separation: */
+
+static struct GSocketGUIFunctionsTable *gs_gui_functions;
+
+#define USE_GUI() (gs_gui_functions != NULL)
+
+/* Define macros to simplify indirection: */
+#define _GSocket_GUI_Init() \
+    if (gs_gui_functions) gs_gui_functions->GUI_Init()
+#define _GSocket_GUI_Cleanup() \
+    if (gs_gui_functions) gs_gui_functions->GUI_Cleanup()
+#define _GSocket_GUI_Init_Socket(socket) \
+    (gs_gui_functions ? gs_gui_functions->GUI_Init_Socket(socket) : 1)
+#define _GSocket_GUI_Destroy_Socket(socket) \
+    if (gs_gui_functions) gs_gui_functions->GUI_Destroy_Socket(socket)
+#define _GSocket_Enable_Events(socket) \
+    if (gs_gui_functions) gs_gui_functions->Enable_Events(socket)
+#define _GSocket_Disable_Events(socket) \
+    if (gs_gui_functions) gs_gui_functions->Disable_Events(socket)
+#define _GSocket_Install_Callback(socket, event) \
+    if (gs_gui_functions) gs_gui_functions->Install_Callback(socket, event)
+#define _GSocket_Uninstall_Callback(socket, event) \
+    if (gs_gui_functions) gs_gui_functions->Uninstall_Callback(socket, event)
+
+static struct GSocketBaseFunctionsTable gs_base_functions =
+{
+    _GSocket_Detected_Read,
+    _GSocket_Detected_Write
+};
+
 /* Global initialisers */
 
+void GSocket_SetGUIFunctions(struct GSocketGUIFunctionsTable *guifunc)
+{
+  gs_gui_functions = guifunc;
+}
+         
 int GSocket_Init(void)
 {
+  if (gs_gui_functions)
+  {
+      if ( !gs_gui_functions->GUI_Init() )
+        return 0;
+  }
   return 1;
 }
 
 void GSocket_Cleanup(void)
 {
+  if (gs_gui_functions)
+  {
+      gs_gui_functions->GUI_Cleanup();
+  }
 }
 
 /* Constructors / Destructors for GSocket */
@@ -198,8 +233,10 @@ GSocket *GSocket_new(void)
                                 /* 10 minutes * 60 sec * 1000 millisec */
   socket->m_establishing        = FALSE;
 
+  socket->m_functions           = &gs_base_functions;
+
   /* Per-socket GUI-specific initialization */
-  success = _GSocket_GUI_Init(socket);
+  success = _GSocket_GUI_Init_Socket(socket);
   if (!success)
   {
     free(socket);
@@ -225,7 +262,7 @@ void GSocket_destroy(GSocket *socket)
     GSocket_Shutdown(socket);
 
   /* Per-socket GUI-specific cleanup */
-  _GSocket_GUI_Destroy(socket);
+  _GSocket_GUI_Destroy_Socket(socket);
 
   /* Destroy private addresses */
   if (socket->m_local)
@@ -828,7 +865,8 @@ int GSocket_Write(GSocket *socket, const char *buffer, int size)
  */
 GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags)
 {
-#if defined(wxUSE_GUI) && !wxUSE_GUI
+  if (!USE_GUI())
+  {
 
     GSocketEventFlags result = 0;
     fd_set readfds;
@@ -939,12 +977,14 @@ GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags)
 
     return (result & flags);
 
-#else 
+  }
+  else
+  {
 
     assert(socket != NULL);
     return flags & socket->m_detected;
 
-#endif /* !wxUSE_GUI */
+  }
 }
 
 /* Flags */

src/os2/gsockpm.c

@@ -34,7 +34,16 @@ static void _GSocket_PM_Output(void *data)
     _GSocket_Detected_Write(socket);
 }
 
-int _GSocket_GUI_Init(GSocket *socket)
+int _GSocket_GUI_Init(void)
+{
+    return 1;
+}
+
+void _GSocket_GUI_Cleanup(void)
+{
+}
+
+int _GSocket_GUI_Init_Socket(GSocket *socket)
 {
     int *m_id;
     socket->m_gui_dependent = (char *)malloc(sizeof(int)*2);
@@ -45,7 +54,7 @@ int _GSocket_GUI_Init(GSocket *socket)
     return TRUE;
 }
 
-void _GSocket_GUI_Destroy(GSocket *socket)
+void _GSocket_GUI_Destroy_Socket(GSocket *socket)
 {
     free(socket->m_gui_dependent);
 }

src/unix/gsocket.c

@@ -110,17 +110,6 @@ struct sockaddr_un
 #  include "gsocket.h"
 #endif /* __GSOCKET_STANDALONE__ */
 
-/* redefine some GUI-only functions to do nothing in console mode */
-#if 1 //defined(wxUSE_GUI) && !wxUSE_GUI
-      // FIXME -- temporary measure
-#  define _GSocket_GUI_Init(socket) (1)
-#  define _GSocket_GUI_Destroy(socket)
-#  define _GSocket_Enable_Events(socket)
-#  define _GSocket_Disable_Events(socket)
-#  define _GSocket_Install_Callback(socket, event)
-#  define _GSocket_Uninstall_Callback(socket, event)
-#endif /* wxUSE_GUI */
-
 /* debugging helpers */
 #ifdef __GSOCKET_DEBUG__
 #  define GSocket_Debug(args) printf args
@@ -128,15 +117,60 @@ struct sockaddr_un
 #  define GSocket_Debug(args)
 #endif /* __GSOCKET_DEBUG__ */
 
+/* Table of GUI-related functions. We must call them indirectly because
+ * of wxBase and GUI separation: */
+
+static struct GSocketGUIFunctionsTable *gs_gui_functions;
+
+#define USE_GUI() (gs_gui_functions != NULL)
+
+/* Define macros to simplify indirection: */
+#define _GSocket_GUI_Init() \
+    if (gs_gui_functions) gs_gui_functions->GUI_Init()
+#define _GSocket_GUI_Cleanup() \
+    if (gs_gui_functions) gs_gui_functions->GUI_Cleanup()
+#define _GSocket_GUI_Init_Socket(socket) \
+    (gs_gui_functions ? gs_gui_functions->GUI_Init_Socket(socket) : 1)
+#define _GSocket_GUI_Destroy_Socket(socket) \
+    if (gs_gui_functions) gs_gui_functions->GUI_Destroy_Socket(socket)
+#define _GSocket_Enable_Events(socket) \
+    if (gs_gui_functions) gs_gui_functions->Enable_Events(socket)
+#define _GSocket_Disable_Events(socket) \
+    if (gs_gui_functions) gs_gui_functions->Disable_Events(socket)
+#define _GSocket_Install_Callback(socket, event) \
+    if (gs_gui_functions) gs_gui_functions->Install_Callback(socket, event)
+#define _GSocket_Uninstall_Callback(socket, event) \
+    if (gs_gui_functions) gs_gui_functions->Uninstall_Callback(socket, event)
+
+static struct GSocketBaseFunctionsTable gs_base_functions =
+{
+    _GSocket_Detected_Read,
+    _GSocket_Detected_Write
+};
+
 /* Global initialisers */
 
+void GSocket_SetGUIFunctions(struct GSocketGUIFunctionsTable *guifunc)
+{
+  gs_gui_functions = guifunc;
+}
+         
 int GSocket_Init(void)
 {
+  if (gs_gui_functions)
+  {
+      if ( !gs_gui_functions->GUI_Init() )
+        return 0;
+  }
   return 1;
 }
 
 void GSocket_Cleanup(void)
 {
+  if (gs_gui_functions)
+  {
+      gs_gui_functions->GUI_Cleanup();
+  }
 }
 
 /* Constructors / Destructors for GSocket */
@@ -168,8 +202,10 @@ GSocket *GSocket_new(void)
                                 /* 10 minutes * 60 sec * 1000 millisec */
   socket->m_establishing        = FALSE;
 
+  socket->m_functions           = &gs_base_functions;
+
   /* Per-socket GUI-specific initialization */
-  success = _GSocket_GUI_Init(socket);
+  success = _GSocket_GUI_Init_Socket(socket);
   if (!success)
   {
     free(socket);
@@ -195,7 +231,7 @@ void GSocket_destroy(GSocket *socket)
     GSocket_Shutdown(socket);
 
   /* Per-socket GUI-specific cleanup */
-  _GSocket_GUI_Destroy(socket);
+  _GSocket_GUI_Destroy_Socket(socket);
 
   /* Destroy private addresses */
   if (socket->m_local)
@@ -797,7 +833,8 @@ int GSocket_Write(GSocket *socket, const char *buffer, int size)
  */
 GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags)
 {
-#if defined(wxUSE_GUI) && !wxUSE_GUI
+  if (!USE_GUI())
+  {
 
     GSocketEventFlags result = 0;
     fd_set readfds;
@@ -908,12 +945,14 @@ GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags)
 
     return (result & flags);
 
-#else 
+  }
+  else
+  {
 
     assert(socket != NULL);
     return flags & socket->m_detected;
 
-#endif /* !wxUSE_GUI */
+  }
 }
 
 /* Flags */

src/x11/gsockx11.c

@@ -32,17 +32,26 @@ static void _GSocket_X11_Input(int *fid, void* data)
 {
   GSocket *socket = (GSocket *)data;
   
-  _GSocket_Detected_Read(socket);
+  socket->m_functions->Detected_Read(socket);
 }
 
 static void _GSocket_X11_Output(int *fid, void* data)
 {
   GSocket *socket = (GSocket *)data;
 
-  _GSocket_Detected_Write(socket);
+  socket->m_functions->Detected_Write(socket);
 }
 
-int _GSocket_GUI_Init(GSocket *socket)
+int _GSocket_GUI_Init(void)
+{
+    return 1;
+}
+
+void _GSocket_GUI_Cleanup(void)
+{
+}
+
+int _GSocket_GUI_Init_Socket(GSocket *socket)
 {
   int *m_id;
 
@@ -55,7 +64,7 @@ int _GSocket_GUI_Init(GSocket *socket)
   return TRUE;
 }
 
-void _GSocket_GUI_Destroy(GSocket *socket)
+void _GSocket_GUI_Destroy_Socket(GSocket *socket)
 {
   free(socket->m_gui_dependent);
 }