fixed bug in wxHtmlWindow: HistoryBack/Forward now correctly preserves last entry...

[wxWidgets.git] / src / common / socket.cpp

diff --git a/src/common/socket.cpp b/src/common/socket.cpp
index c83644159e6a4f26bb59e9597cad4904c8c4b714..b2947da8e81de3cf518d23d2cdeb97f27cfef71a 100644 (file)
--- a/src/common/socket.cpp
+++ b/src/common/socket.cpp
@@ -3,13 +3,16 @@
 // Purpose:    Socket handler classes
 // Authors:    Guilhem Lavaux, Guillermo Rodriguez Garcia
 // Created:    April 1997
 // Purpose:    Socket handler classes
 // Authors:    Guilhem Lavaux, Guillermo Rodriguez Garcia
 // Created:    April 1997

-// Updated:    September 1999
-// Copyright:  (C) 1999, 1998, 1997, Guilhem Lavaux
-//             (C) 1999, Guillermo Rodriguez Garcia
+// Copyright:  (C) 1999-1997, Guilhem Lavaux
+//             (C) 2000-1999, Guillermo Rodriguez Garcia

 // RCS_ID:     $Id$
 // License:    see wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 
 // RCS_ID:     $Id$
 // License:    see wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 

+// ==========================================================================
+// Declarations
+// ==========================================================================
+

 #ifdef __GNUG__
 #pragma implementation "socket.h"
 #endif
 #ifdef __GNUG__
 #pragma implementation "socket.h"
 #endif


@@ -23,10 +26,6 @@
 
 #if wxUSE_SOCKETS
 
 
 #if wxUSE_SOCKETS
 

-/////////////////////////////////////////////////////////////////////////////
-// wxWindows headers
-/////////////////////////////////////////////////////////////////////////////
-

 #include "wx/app.h"
 #include "wx/defs.h"
 #include "wx/object.h"
 #include "wx/app.h"
 #include "wx/defs.h"
 #include "wx/object.h"


@@ -36,27 +35,32 @@
 #include "wx/module.h"
 #include "wx/log.h"
 #include "wx/intl.h"
 #include "wx/module.h"
 #include "wx/log.h"
 #include "wx/intl.h"

+#include "wx/event.h"

 
 

-/////////////////////////////////////////////////////////////////////////////
-// wxSocket headers
-/////////////////////////////////////////////////////////////////////////////
+#if wxUSE_GUI
+  #include "wx/gdicmn.h"      // for wxPendingDelete
+#endif // wxUSE_GUI

 
 #include "wx/sckaddr.h"
 #include "wx/socket.h"
 
 
 #include "wx/sckaddr.h"
 #include "wx/socket.h"
 

+// --------------------------------------------------------------------------
+// macros and constants
+// --------------------------------------------------------------------------
+

 // discard buffer
 #define MAX_DISCARD_SIZE (10 * 1024)
 
 // what to do within waits
 // discard buffer
 #define MAX_DISCARD_SIZE (10 * 1024)
 
 // what to do within waits

-#define PROCESS_EVENTS() wxYield()
-
-// use wxPostEvent or not
-#define EXPERIMENTAL_USE_POST 1
-
+#if wxUSE_GUI
+  #define PROCESS_EVENTS() wxYield()
+#else
+  #define PROCESS_EVENTS()
+#endif

 
 

-// --------------------------------------------------------------
-// ClassInfos
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// wxWin macros
+// --------------------------------------------------------------------------

 
 IMPLEMENT_CLASS(wxSocketBase, wxObject)
 IMPLEMENT_CLASS(wxSocketServer, wxSocketBase)
 
 IMPLEMENT_CLASS(wxSocketBase, wxObject)
 IMPLEMENT_CLASS(wxSocketServer, wxSocketBase)


@@ -64,66 +68,137 @@ IMPLEMENT_CLASS(wxSocketClient, wxSocketBase)
 IMPLEMENT_CLASS(wxDatagramSocket, wxSocketBase)
 IMPLEMENT_DYNAMIC_CLASS(wxSocketEvent, wxEvent)
 
 IMPLEMENT_CLASS(wxDatagramSocket, wxSocketBase)
 IMPLEMENT_DYNAMIC_CLASS(wxSocketEvent, wxEvent)
 

+// --------------------------------------------------------------------------
+// private classes
+// --------------------------------------------------------------------------
+

 class wxSocketState : public wxObject
 {
 public:
 class wxSocketState : public wxObject
 {
 public:

-  bool                     m_notify_state;
-  GSocketEventFlags        m_neededreq;
-  wxSockFlags              m_flags;
+  wxSocketFlags            m_flags;
+  wxSocketEventFlags       m_eventmask;
+  bool                     m_notify;
+  void                    *m_clientData;
+#if WXWIN_COMPATIBILITY

   wxSocketBase::wxSockCbk  m_cbk;
   char                    *m_cdata;
   wxSocketBase::wxSockCbk  m_cbk;
   char                    *m_cdata;

+#endif // WXWIN_COMPATIBILITY

 
 public:
   wxSocketState() : wxObject() {}
 };
 
 
 public:
   wxSocketState() : wxObject() {}
 };
 

-// --------------------------------------------------------------
-// wxSocketBase ctor and dtor
-// --------------------------------------------------------------
-
-wxSocketBase::wxSocketBase(wxSockFlags _flags, wxSockType _type) :
-  wxEvtHandler(),
-  m_socket(NULL), m_evt_handler(NULL), m_id(-1),
-  m_flags(_flags), m_type(_type),
-  m_neededreq(0), m_notify_state(FALSE),
-  m_connected(FALSE), m_establishing(FALSE),
-  m_reading(FALSE), m_writing(FALSE),
-  m_error(FALSE), m_lcount(0), m_timeout(600), m_states(),
-  m_unread(NULL), m_unrd_size(0), m_unrd_cur(0),
-  m_cbk(NULL), m_cdata(NULL)
+// ==========================================================================
+// wxSocketBase
+// ==========================================================================
+
+// --------------------------------------------------------------------------
+// Ctor and dtor
+// --------------------------------------------------------------------------
+
+void wxSocketBase::Init()
+{
+  m_socket       = NULL;
+  m_type         = wxSOCKET_UNINIT;
+
+  // state
+  m_flags        = 0;
+  m_connected    =
+  m_establishing =
+  m_reading      =
+  m_writing      =
+  m_error        = FALSE;
+  m_lcount       = 0;
+  m_timeout      = 600;
+  m_beingDeleted = FALSE;
+
+  // pushback buffer
+  m_unread       = NULL;
+  m_unrd_size    = 0;
+  m_unrd_cur     = 0;
+
+  // events
+  m_id           = -1;
+  m_handler      = NULL;
+  m_clientData   = NULL;
+  m_notify       = FALSE;
+  m_eventmask    = 0;
+#if WXWIN_COMPATIBILITY
+  m_cbk          = NULL;
+  m_cdata        = NULL;
+#endif // WXWIN_COMPATIBILITY
+}
+
+wxSocketBase::wxSocketBase()

 {
 {

+  Init();

 }
 
 }
 

-wxSocketBase::wxSocketBase() :
-  wxEvtHandler(),
-  m_socket(NULL), m_evt_handler(NULL), m_id(-1),
-  m_flags(NONE), m_type(SOCK_UNINIT),
-  m_neededreq(0), m_notify_state(FALSE),
-  m_connected(FALSE), m_establishing(FALSE),
-  m_reading(FALSE), m_writing(FALSE),
-  m_error(FALSE), m_lcount(0), m_timeout(600), m_states(),
-  m_unread(NULL), m_unrd_size(0), m_unrd_cur(0),
-  m_cbk(NULL), m_cdata(NULL)
+wxSocketBase::wxSocketBase(wxSocketFlags flags, wxSocketType type)

 {
 {

+  Init();
+
+  m_flags = flags;
+  m_type  = type;

 }
 
 wxSocketBase::~wxSocketBase()
 {
 }
 
 wxSocketBase::~wxSocketBase()
 {

-  if (m_unread)
-    free(m_unread);
+  // Just in case the app called Destroy() *and* then deleted
+  // the socket immediately: don't leave dangling pointers.
+#if wxUSE_GUI
+  wxPendingDelete.DeleteObject(this);
+#endif

 
   // Shutdown and close the socket
 
   // Shutdown and close the socket

-  Close();
+  if (!m_beingDeleted)
+    Close();

 
   // Destroy the GSocket object
   if (m_socket)
     GSocket_destroy(m_socket);
 
   // Destroy the GSocket object
   if (m_socket)
     GSocket_destroy(m_socket);

+
+  // Free the pushback buffer
+  if (m_unread)
+    free(m_unread);
+}
+
+bool wxSocketBase::Destroy()
+{
+  // Delayed destruction: the socket will be deleted during the next
+  // idle loop iteration. This ensures that all pending events have
+  // been processed.
+  m_beingDeleted = TRUE;
+
+  // Shutdown and close the socket
+  Close();
+
+  // Supress events from now on
+  Notify(FALSE);
+
+#if wxUSE_GUI
+  if ( !wxPendingDelete.Member(this) )
+    wxPendingDelete.Append(this);
+#else
+  delete this;
+#endif
+
+  return TRUE;

 }
 
 }
 

+// --------------------------------------------------------------------------
+// Basic IO calls
+// --------------------------------------------------------------------------
+
+// The following IO operations update m_error and m_lcount:
+// {Read, Write, ReadMsg, WriteMsg, Peek, Unread, Discard}
+//
+// TODO: Should Connect, Accept and AcceptWith update m_error?
+

 bool wxSocketBase::Close()
 {
   // Interrupt pending waits
 bool wxSocketBase::Close()
 {
   // Interrupt pending waits

-  InterruptAllWaits();
+  InterruptWait();

 
   if (m_socket)
   {
 
   if (m_socket)
   {


@@ -133,43 +208,22 @@ bool wxSocketBase::Close()
 
     // Shutdown the connection
     GSocket_Shutdown(m_socket);
 
     // Shutdown the connection
     GSocket_Shutdown(m_socket);

-    m_connected = FALSE;
-    m_establishing = FALSE;

   }
 
   }
 

+  m_connected = FALSE;
+  m_establishing = FALSE;

   return TRUE;
 }
 
   return TRUE;
 }
 

-// --------------------------------------------------------------
-// wxSocketBase basic IO operations
-// --------------------------------------------------------------
-
-// All IO operations {Read, Write, ReadMsg, WriteMsg, Peek,
-// Unread, Discard} update m_error and m_lcount.
-//
-// TODO: Should Connect, Accept and AcceptWith update m_error?
-
-class _wxSocketInternalTimer: public wxTimer
-{
-public:
-  int *m_state;
-  unsigned long m_new_val;
-
-  void Notify()
-  {
-    *m_state = (int)m_new_val;  // Change the value
-  }
-};
-
-wxSocketBase& wxSocketBase::Read(char* buffer, wxUint32 nbytes)
+wxSocketBase& wxSocketBase::Read(void* buffer, wxUint32 nbytes)

 {
   // Mask read events
   m_reading = TRUE;
 
   m_lcount = _Read(buffer, nbytes);
 
 {
   // Mask read events
   m_reading = TRUE;
 
   m_lcount = _Read(buffer, nbytes);
 

-  // If in WAITALL mode, all bytes should have been read.
-  if (m_flags & WAITALL)
+  // If in wxSOCKET_WAITALL mode, all bytes should have been read.
+  if (m_flags & wxSOCKET_WAITALL)

     m_error = (m_lcount != nbytes);
   else
     m_error = (m_lcount == 0);
     m_error = (m_lcount != nbytes);
   else
     m_error = (m_lcount == 0);


@@ -180,69 +234,70 @@ wxSocketBase& wxSocketBase::Read(char* buffer, wxUint32 nbytes)
   return *this;
 }
 
   return *this;
 }
 

-wxUint32 wxSocketBase::_Read(char* buffer, wxUint32 nbytes)
+wxUint32 wxSocketBase::_Read(void* buffer, wxUint32 nbytes)

 {
   int total;
   int ret = 1;
 
 {
   int total;
   int ret = 1;
 

-  // we try this even if the connection has already been closed.
+  // Try the pushback buffer first

   total = GetPushback(buffer, nbytes, FALSE);
   nbytes -= total;
   total = GetPushback(buffer, nbytes, FALSE);
   nbytes -= total;

-  buffer += total;
-
-  // If the socket is not connected, or we have got the whole
-  // needed buffer, return immedately
-  if (!m_socket || !m_connected || !nbytes)
+  buffer  = (char *)buffer + total;
+
+  // Return now in one of the following cases:
+  // - the socket is invalid,
+  // - we got all the data,
+  // - we got *some* data and we are not using wxSOCKET_WAITALL.
+  if ( !m_socket ||
+       !nbytes ||
+       ((total != 0) && !(m_flags & wxSOCKET_WAITALL)) )

     return total;
 
   // Possible combinations (they are checked in this order)
   // wxSOCKET_NOWAIT
     return total;
 
   // Possible combinations (they are checked in this order)
   // wxSOCKET_NOWAIT

-  // wxSOCKET_WAITALL | wxSOCKET_BLOCK
-  // wxSOCKET_WAITALL
+  // wxSOCKET_WAITALL (with or without wxSOCKET_BLOCK)

   // wxSOCKET_BLOCK
   // wxSOCKET_NONE
   //
   if (m_flags & wxSOCKET_NOWAIT)
   {
   // wxSOCKET_BLOCK
   // wxSOCKET_NONE
   //
   if (m_flags & wxSOCKET_NOWAIT)
   {

-    GSocket_SetNonBlocking(m_socket, TRUE);
-    ret = GSocket_Read(m_socket, buffer, nbytes);
-    GSocket_SetNonBlocking(m_socket, FALSE);
+    GSocket_SetNonBlocking(m_socket, 1);
+    ret = GSocket_Read(m_socket, (char *)buffer, nbytes);
+    GSocket_SetNonBlocking(m_socket, 0);

 
     if (ret > 0)
       total += ret;
   }
 
     if (ret > 0)
       total += ret;
   }

-  else if (m_flags & wxSOCKET_WAITALL)
+  else

   {
   {

-    while (ret > 0 && nbytes > 0)
+    bool more = TRUE;
+
+    while (more)

     {
     {

-      if (!(m_flags & wxSOCKET_BLOCK) && !(WaitForRead()))
-          break;
+      if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForRead() )
+        break;

 
 

-      ret = GSocket_Read(m_socket, buffer, nbytes);
+      ret = GSocket_Read(m_socket, (char *)buffer, nbytes);

 
       if (ret > 0)
       {
         total  += ret;
 
       if (ret > 0)
       {
         total  += ret;

-        buffer += ret;

         nbytes -= ret;
         nbytes -= ret;

+        buffer  = (char *)buffer + ret;

       }
       }

-    }
-  }
-  else
-  {
-    if ((m_flags & wxSOCKET_BLOCK) || WaitForRead())
-    {
-      ret = GSocket_Read(m_socket, buffer, nbytes);

 
 

-      if (ret > 0)
-        total += ret;
+      // If we got here and wxSOCKET_WAITALL is not set, we can leave
+      // now. Otherwise, wait until we recv all the data or until there
+      // is an error.
+      //
+      more = (ret > 0 && nbytes > 0 && (m_flags & wxSOCKET_WAITALL));

     }
   }
 
   return total;
 }
 
     }
   }
 
   return total;
 }
 

-wxSocketBase& wxSocketBase::ReadMsg(char* buffer, wxUint32 nbytes)
+wxSocketBase& wxSocketBase::ReadMsg(void* buffer, wxUint32 nbytes)

 {
   wxUint32 len, len2, sig, total;
   bool error;
 {
   wxUint32 len, len2, sig, total;
   bool error;


@@ -261,7 +316,7 @@ wxSocketBase& wxSocketBase::ReadMsg(char* buffer, wxUint32 nbytes)
   old_flags = m_flags;
   SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);
 
   old_flags = m_flags;
   SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);
 

-  if (_Read((char *)&msg, sizeof(msg)) != sizeof(msg))
+  if (_Read(&msg, sizeof(msg)) != sizeof(msg))

     goto exit;
 
   sig = (wxUint32)msg.sig[0];
     goto exit;
 
   sig = (wxUint32)msg.sig[0];


@@ -271,7 +326,7 @@ wxSocketBase& wxSocketBase::ReadMsg(char* buffer, wxUint32 nbytes)
 
   if (sig != 0xfeeddead)
   {
 
   if (sig != 0xfeeddead)
   {

-    wxLogWarning( _("TCP: invalid signature returned to ReadMsg."));
+    wxLogWarning(_("wxSocket: invalid signature in ReadMsg."));

     goto exit;
   }
 
     goto exit;
   }
 


@@ -280,9 +335,6 @@ wxSocketBase& wxSocketBase::ReadMsg(char* buffer, wxUint32 nbytes)
   len |= (wxUint32)(msg.len[2] << 16);
   len |= (wxUint32)(msg.len[3] << 24);
 
   len |= (wxUint32)(msg.len[2] << 16);
   len |= (wxUint32)(msg.len[3] << 24);
 

-  //wxLogMessage("Readmsg: %d  %d  %d  %d -> len == %d",
-  //  msg.len[0], msg.len[1], msg.len[2], msg.len[3], len);
-

   if (len > nbytes)
   {
     len2 = len - nbytes;
   if (len > nbytes)
   {
     len2 = len - nbytes;


@@ -291,8 +343,7 @@ wxSocketBase& wxSocketBase::ReadMsg(char* buffer, wxUint32 nbytes)
   else
     len2 = 0;
 
   else
     len2 = 0;
 

-  // This check is necessary so that we don't attemp to read if
-  // the msg was zero bytes long.
+  // Don't attemp to read if the msg was zero bytes long.

   if (len)
   {
     total = _Read(buffer, len);
   if (len)
   {
     total = _Read(buffer, len);


@@ -319,7 +370,7 @@ wxSocketBase& wxSocketBase::ReadMsg(char* buffer, wxUint32 nbytes)
     if (len2 != 0)
       goto exit;
   }
     if (len2 != 0)
       goto exit;
   }

-  if (_Read((char *)&msg, sizeof(msg)) != sizeof(msg))
+  if (_Read(&msg, sizeof(msg)) != sizeof(msg))

     goto exit;
 
   sig = (wxUint32)msg.sig[0];
     goto exit;
 
   sig = (wxUint32)msg.sig[0];


@@ -329,7 +380,7 @@ wxSocketBase& wxSocketBase::ReadMsg(char* buffer, wxUint32 nbytes)
 
   if (sig != 0xdeadfeed)
   {
 
   if (sig != 0xdeadfeed)
   {

-    //wxLogMessage(wxT("Warning: invalid signature returned to ReadMsg"));
+    wxLogWarning(_("wxSocket: invalid signature in ReadMsg."));

     goto exit;
   }
 
     goto exit;
   }
 


@@ -345,7 +396,7 @@ exit:
   return *this;
 }
 
   return *this;
 }
 

-wxSocketBase& wxSocketBase::Peek(char* buffer, wxUint32 nbytes)
+wxSocketBase& wxSocketBase::Peek(void* buffer, wxUint32 nbytes)

 {
   // Mask read events
   m_reading = TRUE;
 {
   // Mask read events
   m_reading = TRUE;


@@ -365,7 +416,7 @@ wxSocketBase& wxSocketBase::Peek(char* buffer, wxUint32 nbytes)
   return *this;
 }
 
   return *this;
 }
 

-wxSocketBase& wxSocketBase::Write(const char *buffer, wxUint32 nbytes)
+wxSocketBase& wxSocketBase::Write(const void *buffer, wxUint32 nbytes)

 {
   // Mask write events
   m_writing = TRUE;
 {
   // Mask write events
   m_writing = TRUE;


@@ -384,67 +435,66 @@ wxSocketBase& wxSocketBase::Write(const char *buffer, wxUint32 nbytes)
   return *this;
 }
 
   return *this;
 }
 

-wxUint32 wxSocketBase::_Write(const char *buffer, wxUint32 nbytes)
+wxUint32 wxSocketBase::_Write(const void *buffer, wxUint32 nbytes)

 {
   wxUint32 total = 0;
   int ret = 1;
 
 {
   wxUint32 total = 0;
   int ret = 1;
 

-  if (!m_connected || !m_socket)
+  // If the socket is invalid or parameters are ill, return immediately
+  if (!m_socket || !buffer || !nbytes)

     return 0;
 
   // Possible combinations (they are checked in this order)
   // wxSOCKET_NOWAIT
     return 0;
 
   // Possible combinations (they are checked in this order)
   // wxSOCKET_NOWAIT

-  // wxSOCKET_WAITALL | wxSOCKET_BLOCK
-  // wxSOCKET_WAITALL
+  // wxSOCKET_WAITALL (with or without wxSOCKET_BLOCK)

   // wxSOCKET_BLOCK
   // wxSOCKET_NONE
   //
   if (m_flags & wxSOCKET_NOWAIT)
   {
   // wxSOCKET_BLOCK
   // wxSOCKET_NONE
   //
   if (m_flags & wxSOCKET_NOWAIT)
   {

-    GSocket_SetNonBlocking(m_socket, TRUE);
-    ret = GSocket_Write(m_socket, buffer, nbytes);
-    GSocket_SetNonBlocking(m_socket, FALSE);
+    GSocket_SetNonBlocking(m_socket, 1);
+    ret = GSocket_Write(m_socket, (const char *)buffer, nbytes);
+    GSocket_SetNonBlocking(m_socket, 0);

 
     if (ret > 0)
       total = ret;
   }
 
     if (ret > 0)
       total = ret;
   }

-  else if (m_flags & wxSOCKET_WAITALL)
+  else

   {
   {

-    while (ret > 0 && nbytes > 0)
+    bool more = TRUE;
+
+    while (more)            

     {
     {

-      if (!(m_flags & wxSOCKET_BLOCK) && !(WaitForWrite()))
-          break;
+      if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForWrite() )
+        break;

 
 

-      ret = GSocket_Write(m_socket, buffer, nbytes);
+      ret = GSocket_Write(m_socket, (const char *)buffer, nbytes);

 
       if (ret > 0)
       {
         total  += ret;
 
       if (ret > 0)
       {
         total  += ret;

-        buffer += ret;

         nbytes -= ret;
         nbytes -= ret;

+        buffer  = (const char *)buffer + ret;

       }
       }

-    }
-  }
-  else
-  {
-    if ((m_flags & wxSOCKET_BLOCK) || WaitForWrite())
-    {
-      ret = GSocket_Write(m_socket, buffer, nbytes);

 
 

-      if (ret > 0)
-        total = ret;
+      // If we got here and wxSOCKET_WAITALL is not set, we can leave
+      // now. Otherwise, wait until we send all the data or until there
+      // is an error.
+      //
+      more = (ret > 0 && nbytes > 0 && (m_flags & wxSOCKET_WAITALL));

     }
   }
 
   return total;
 }
 
     }
   }
 
   return total;
 }
 

-wxSocketBase& wxSocketBase::WriteMsg(const char *buffer, wxUint32 nbytes)
+wxSocketBase& wxSocketBase::WriteMsg(const void *buffer, wxUint32 nbytes)

 {
   wxUint32 total;
   bool error;
   int old_flags;
 {
   wxUint32 total;
   bool error;
   int old_flags;

-  struct {
+  struct
+  {

     unsigned char sig[4];
     unsigned char len[4];
   } msg;
     unsigned char sig[4];
     unsigned char len[4];
   } msg;


@@ -457,30 +507,17 @@ wxSocketBase& wxSocketBase::WriteMsg(const char *buffer, wxUint32 nbytes)
   old_flags = m_flags;
   SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);
 
   old_flags = m_flags;
   SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);
 

-  // warning about 'cast truncates constant value'
-#ifdef __VISUALC__
-#  pragma warning(disable: 4310)
-#endif // __VISUALC__
-

   msg.sig[0] = (unsigned char) 0xad;
   msg.sig[1] = (unsigned char) 0xde;
   msg.sig[2] = (unsigned char) 0xed;
   msg.sig[3] = (unsigned char) 0xfe;
 
   msg.sig[0] = (unsigned char) 0xad;
   msg.sig[1] = (unsigned char) 0xde;
   msg.sig[2] = (unsigned char) 0xed;
   msg.sig[3] = (unsigned char) 0xfe;
 

-  msg.len[0] = (unsigned char) nbytes & 0xff;
-  msg.len[1] = (unsigned char) (nbytes >> 8) & 0xff;
-  msg.len[2] = (unsigned char) (nbytes >> 16) & 0xff;
-  msg.len[3] = (unsigned char) (nbytes >> 24) & 0xff;
+  msg.len[0] = (unsigned char) (nbytes & 0xff);
+  msg.len[1] = (unsigned char) ((nbytes >> 8) & 0xff);
+  msg.len[2] = (unsigned char) ((nbytes >> 16) & 0xff);
+  msg.len[3] = (unsigned char) ((nbytes >> 24) & 0xff);

 
 

-  //wxLogMessage("Writemsg: %d  %d  %d  %d -> %d",
-  //  nbytes & 0xff,
-  //  (nbytes >> 8) & 0xff,
-  //  (nbytes >> 16) & 0xff,
-  //  (nbytes >> 24) & 0xff,
-  //  nbytes
-  //  );
-
-  if (_Write((char *)&msg, sizeof(msg)) < sizeof(msg))
+  if (_Write(&msg, sizeof(msg)) < sizeof(msg))

     goto exit;
 
   total = _Write(buffer, nbytes);
     goto exit;
 
   total = _Write(buffer, nbytes);


@@ -494,7 +531,7 @@ wxSocketBase& wxSocketBase::WriteMsg(const char *buffer, wxUint32 nbytes)
   msg.sig[3] = (unsigned char) 0xde;
   msg.len[0] = msg.len[1] = msg.len[2] = msg.len[3] = (char) 0;
 
   msg.sig[3] = (unsigned char) 0xde;
   msg.len[0] = msg.len[1] = msg.len[2] = msg.len[3] = (char) 0;
 

-  if ((_Write((char *)&msg, sizeof(msg))) < sizeof(msg))
+  if ((_Write(&msg, sizeof(msg))) < sizeof(msg))

     goto exit;
 
   // everything was OK
     goto exit;
 
   // everything was OK


@@ -506,13 +543,9 @@ exit:
   m_writing = FALSE;
 
   return *this;
   m_writing = FALSE;
 
   return *this;

-
-#ifdef __VISUALC__
-#  pragma warning(default: 4310)
-#endif // __VISUALC__

 }
 
 }
 

-wxSocketBase& wxSocketBase::Unread(const char *buffer, wxUint32 nbytes)
+wxSocketBase& wxSocketBase::Unread(const void *buffer, wxUint32 nbytes)

 {
   if (nbytes != 0)
     Pushback(buffer, nbytes);
 {
   if (nbytes != 0)
     Pushback(buffer, nbytes);


@@ -526,8 +559,8 @@ wxSocketBase& wxSocketBase::Unread(const char *buffer, wxUint32 nbytes)
 wxSocketBase& wxSocketBase::Discard()
 {
   int old_flags;
 wxSocketBase& wxSocketBase::Discard()
 {
   int old_flags;

-  char *my_data = new char[MAX_DISCARD_SIZE];
-  wxUint32 recv_size = MAX_DISCARD_SIZE;
+  char *buffer = new char[MAX_DISCARD_SIZE];
+  wxUint32 ret;

   wxUint32 total = 0;
 
   // Mask read events
   wxUint32 total = 0;
 
   // Mask read events


@@ -536,15 +569,16 @@ wxSocketBase& wxSocketBase::Discard()
   old_flags = m_flags;
   SetFlags(wxSOCKET_NOWAIT);
 
   old_flags = m_flags;
   SetFlags(wxSOCKET_NOWAIT);
 

-  while (recv_size == MAX_DISCARD_SIZE)
+  do

   {
   {

-    recv_size = _Read(my_data, MAX_DISCARD_SIZE);
-    total += recv_size;
+    ret = _Read(buffer, MAX_DISCARD_SIZE);
+    total += ret;

   }
   }

+  while (ret == MAX_DISCARD_SIZE);

 
 

-  delete [] my_data;
+  delete[] buffer;

   m_lcount = total;
   m_lcount = total;

-  m_error = FALSE;
+  m_error  = FALSE;

 
   // Allow read events again
   m_reading = FALSE;
 
   // Allow read events again
   m_reading = FALSE;


@@ -552,96 +586,22 @@ wxSocketBase& wxSocketBase::Discard()
   return *this;
 }
 
   return *this;
 }
 

-// --------------------------------------------------------------
-// wxSocketBase get local or peer addresses
-// --------------------------------------------------------------
-
-bool wxSocketBase::GetPeer(wxSockAddress& addr_man) const
-{
-  GAddress *peer;
-
-  if (!m_socket)
-    return FALSE;
-
-  peer = GSocket_GetPeer(m_socket);
-  addr_man.SetAddress(peer);
-  GAddress_destroy(peer);
-
-  return TRUE;
-}
-
-bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const
-{
-  GAddress *local;
-
-  if (!m_socket)
-    return FALSE;
-
-  local = GSocket_GetLocal(m_socket);
-  addr_man.SetAddress(local);
-  GAddress_destroy(local);
-
-  return TRUE;
-}
-
-// --------------------------------------------------------------
-// wxSocketBase save and restore socket state
-// --------------------------------------------------------------
-
-void wxSocketBase::SaveState()
-{
-  wxSocketState *state;
-
-  state = new wxSocketState();
-
-  state->m_notify_state = m_notify_state;
-  state->m_neededreq    = m_neededreq;
-  state->m_flags        = m_flags;
-  state->m_cbk          = m_cbk;
-  state->m_cdata        = m_cdata;
-
-  m_states.Append(state);
-}
-
-void wxSocketBase::RestoreState()
-{
-  wxNode *node;
-  wxSocketState *state;
-
-  node = m_states.Last();
-  if (!node)
-    return;
-
-  state = (wxSocketState *)node->Data();
-
-  SetFlags(state->m_flags);
-  m_cbk       = state->m_cbk;
-  m_cdata     = state->m_cdata;
-  m_neededreq = state->m_neededreq;
-  Notify(state->m_notify_state);
-
-  delete node;
-  delete state;
-}
-
-
-// --------------------------------------------------------------
-// wxSocketBase Wait functions
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Wait functions
+// --------------------------------------------------------------------------

 
 

-// GRG: I have completely rewritten this family of functions
-// so that they don't depend on event notifications; instead,
-// they poll the socket, using GSocket_Select(), to check for
-// the specified combination of event flags, until an event
-// occurs or until the timeout ellapses. The polling loop
-// calls PROCESS_EVENTS(), so this won't block the GUI.
+// All Wait functions poll the socket using GSocket_Select() to
+// check for the specified combination of conditions, until one
+// of these conditions become true, an error occurs, or the
+// timeout elapses. The polling loop calls PROCESS_EVENTS(), so
+// this won't block the GUI.

 
 

-bool wxSocketBase::_Wait(long seconds, long milliseconds, wxSocketEventFlags flags)
+bool wxSocketBase::_Wait(long seconds,
+                         long milliseconds,
+                         wxSocketEventFlags flags)

 {
   GSocketEventFlags result;
 {
   GSocketEventFlags result;

-  _wxSocketInternalTimer timer;

   long timeout;
   long timeout;

-  int state = -1;

 
   // Set this to TRUE to interrupt ongoing waits
   m_interrupt = FALSE;
 
   // Set this to TRUE to interrupt ongoing waits
   m_interrupt = FALSE;


@@ -650,70 +610,58 @@ bool wxSocketBase::_Wait(long seconds, long milliseconds, wxSocketEventFlags fla
   if (!m_socket)
     return FALSE;
 
   if (!m_socket)
     return FALSE;
 

-  // If it is not a server, it must be connected or establishing connection
-  if ((m_type != SOCK_SERVER) && (!m_connected && !m_establishing))
-    return FALSE;
-
-  // Check for valid timeout value
+  // Check for valid timeout value.

   if (seconds != -1)
     timeout = seconds * 1000 + milliseconds;
   else
     timeout = m_timeout * 1000;
 
   if (seconds != -1)
     timeout = seconds * 1000 + milliseconds;
   else
     timeout = m_timeout * 1000;
 

-  // Activate timer
-  if (timeout)
-  {
-    timer.m_state = &state;
-    timer.m_new_val = 0;
-    timer.Start((int)timeout, TRUE);
-  }
-
-  // Active polling (without using events)
+  // Wait in an active polling loop.

   //
   //

-  // NOTE: this duplicates some of the code in OnRequest (lost
-  // connection and connection establishment handling) but this
-  // doesn't hurt. It has to be here because the event might
-  // be a bit delayed, and it has to be in OnRequest as well
-  // because maybe the WaitXXX functions are not being used.
+  // NOTE: We duplicate some of the code in OnRequest, but this doesn't
+  //   hurt. It has to be here because the (GSocket) event might arrive
+  //   a bit delayed, and it has to be in OnRequest as well because we
+  //   don't know whether the Wait functions are being used.

   //
   // Do this at least once (important if timeout == 0, when
   //
   // Do this at least once (important if timeout == 0, when

-  // we are just polling)
-  //
-  while (state == -1)
+  // we are just polling). Also, if just polling, do not yield.
+
+  wxStopWatch chrono;
+  bool done = FALSE;
+
+  while (!done)

   {
     result = GSocket_Select(m_socket, flags | GSOCK_LOST_FLAG);
 
   {
     result = GSocket_Select(m_socket, flags | GSOCK_LOST_FLAG);
 

-    // Connection lost
-    if (result & GSOCK_LOST_FLAG)
-    {
-      timer.Stop();
-      Close();
-      return TRUE;
-    }
-

     // Incoming connection (server) or connection established (client)
     if (result & GSOCK_CONNECTION_FLAG)
     {
     // Incoming connection (server) or connection established (client)
     if (result & GSOCK_CONNECTION_FLAG)
     {

-      timer.Stop();

       m_connected = TRUE;
       m_establishing = FALSE;
       return TRUE;
     }
 
       m_connected = TRUE;
       m_establishing = FALSE;
       return TRUE;
     }
 

+    // Data available or output buffer ready

     if ((result & GSOCK_INPUT_FLAG) || (result & GSOCK_OUTPUT_FLAG))
     {
     if ((result & GSOCK_INPUT_FLAG) || (result & GSOCK_OUTPUT_FLAG))
     {

-      timer.Stop();

       return TRUE;
     }
 
       return TRUE;
     }
 

-    // Wait more?
-    if ((timeout == 0) || (m_interrupt))
-      break;
+    // Connection lost
+    if (result & GSOCK_LOST_FLAG)
+    {
+      m_connected = FALSE;
+      m_establishing = FALSE;
+      return (flags & GSOCK_LOST_FLAG) != 0;
+    }

 
 

-    PROCESS_EVENTS();
+    // Wait more?
+    if ((!timeout) || (chrono.Time() > timeout) || (m_interrupt))
+      done = TRUE;
+    else
+      PROCESS_EVENTS();

   }
 
   }
 

-  timer.Stop();

   return FALSE;
 }
 
   return FALSE;
 }
 


@@ -727,11 +675,17 @@ bool wxSocketBase::Wait(long seconds, long milliseconds)
 
 bool wxSocketBase::WaitForRead(long seconds, long milliseconds)
 {
 
 bool wxSocketBase::WaitForRead(long seconds, long milliseconds)
 {

-  // Check pushback buffer
+  // Check pushback buffer before entering _Wait

   if (m_unread)
     return TRUE;
 
   if (m_unread)
     return TRUE;
 

-  return _Wait(seconds, milliseconds, GSOCK_INPUT_FLAG);
+  // Note that GSOCK_INPUT_LOST has to be explicitly passed to
+  // _Wait becuase of the semantics of WaitForRead: a return
+  // value of TRUE means that a GSocket_Read call will return
+  // immediately, not that there is actually data to read.
+
+  return _Wait(seconds, milliseconds, GSOCK_INPUT_FLAG |
+                                      GSOCK_LOST_FLAG);

 }
 
 bool wxSocketBase::WaitForWrite(long seconds, long milliseconds)
 }
 
 bool wxSocketBase::WaitForWrite(long seconds, long milliseconds)


@@ -744,6 +698,92 @@ bool wxSocketBase::WaitForLost(long seconds, long milliseconds)
   return _Wait(seconds, milliseconds, GSOCK_LOST_FLAG);
 }
 
   return _Wait(seconds, milliseconds, GSOCK_LOST_FLAG);
 }
 

+// --------------------------------------------------------------------------
+// Miscellaneous
+// --------------------------------------------------------------------------
+
+//
+// Get local or peer address
+//
+
+bool wxSocketBase::GetPeer(wxSockAddress& addr_man) const
+{
+  GAddress *peer;
+
+  if (!m_socket)
+    return FALSE;
+
+  peer = GSocket_GetPeer(m_socket);
+  addr_man.SetAddress(peer);
+  GAddress_destroy(peer);
+
+  return TRUE;
+}
+
+bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const
+{
+  GAddress *local;
+
+  if (!m_socket)
+    return FALSE;
+
+  local = GSocket_GetLocal(m_socket);
+  addr_man.SetAddress(local);
+  GAddress_destroy(local);
+
+  return TRUE;
+}
+
+//
+// Save and restore socket state
+//
+
+void wxSocketBase::SaveState()
+{
+  wxSocketState *state;
+
+  state = new wxSocketState();
+
+  state->m_flags      = m_flags;
+  state->m_notify     = m_notify;
+  state->m_eventmask  = m_eventmask;
+  state->m_clientData = m_clientData;
+#if WXWIN_COMPATIBILITY
+  state->m_cbk        = m_cbk;
+  state->m_cdata      = m_cdata;
+#endif // WXWIN_COMPATIBILITY
+
+  m_states.Append(state);
+}
+
+void wxSocketBase::RestoreState()
+{
+  wxNode *node;
+  wxSocketState *state;
+
+  node = m_states.Last();
+  if (!node)
+    return;
+
+  state = (wxSocketState *)node->Data();
+
+  m_flags      = state->m_flags;
+  m_notify     = state->m_notify;
+  m_eventmask  = state->m_eventmask;
+  m_clientData = state->m_clientData;
+#if WXWIN_COMPATIBILITY
+  m_cbk        = state->m_cbk;
+  m_cdata      = state->m_cdata;
+#endif // WXWIN_COMPATIBILITY
+
+  delete node;
+  delete state;
+}
+
+//
+// Timeout and flags
+//
+

 void wxSocketBase::SetTimeout(long seconds)
 {
   m_timeout = seconds;
 void wxSocketBase::SetTimeout(long seconds)
 {
   m_timeout = seconds;


@@ -752,18 +792,17 @@ void wxSocketBase::SetTimeout(long seconds)
     GSocket_SetTimeout(m_socket, m_timeout * 1000);
 }
 
     GSocket_SetTimeout(m_socket, m_timeout * 1000);
 }
 

-// --------------------------------------------------------------
-// wxSocketBase flags
-// --------------------------------------------------------------
-
-void wxSocketBase::SetFlags(wxSockFlags _flags)
+void wxSocketBase::SetFlags(wxSocketFlags flags)

 {
 {

-  m_flags = _flags;
+  m_flags = flags;

 }
 
 }
 

-// --------------------------------------------------------------
-// wxSocketBase callback management
-// --------------------------------------------------------------
+
+// --------------------------------------------------------------------------
+// Callbacks (now obsolete - use events instead)
+// --------------------------------------------------------------------------
+
+#if WXWIN_COMPATIBILITY

 
 wxSocketBase::wxSockCbk wxSocketBase::Callback(wxSockCbk cbk_)
 {
 
 wxSocketBase::wxSockCbk wxSocketBase::Callback(wxSockCbk cbk_)
 {


@@ -781,131 +820,141 @@ char *wxSocketBase::CallbackData(char *data)
   return old_data;
 }
 
   return old_data;
 }
 

-// --------------------------------------------------------------
-// wxSocketBase automatic notifier
-// --------------------------------------------------------------
+#endif // WXWIN_COMPATIBILITY
+
+// --------------------------------------------------------------------------
+// Event handling
+// --------------------------------------------------------------------------

 
 

-// All events (INPUT, OUTPUT, CONNECTION, LOST) are now always
-// internally watched; but users will only be notified of those
-// events they are interested in.
+// A note on how events are processed, which is probably the most
+// difficult thing to get working right while keeping the same API
+// and functionality for all platforms.
+//
+// When GSocket detects an event, it calls wx_socket_callback, which in
+// turn just calls wxSocketBase::OnRequest in the corresponding wxSocket
+// object. OnRequest does some housekeeping, and if the event is to be
+// propagated to the user, it creates a new wxSocketEvent object and
+// posts it. The event is not processed immediately, but delayed with
+// AddPendingEvent instead. This is necessary in order to decouple the
+// event processing from wx_socket_callback; otherwise, subsequent IO
+// calls made from the user event handler would fail, as gtk callbacks
+// are not reentrant.
+//
+// Note that, unlike events, user callbacks (now deprecated) are _not_
+// decoupled from wx_socket_callback and thus they suffer from a variety
+// of problems. Avoid them where possible and use events instead.

 
 static void LINKAGEMODE wx_socket_callback(GSocket * WXUNUSED(socket),
 
 static void LINKAGEMODE wx_socket_callback(GSocket * WXUNUSED(socket),

-                                           GSocketEvent event, char *cdata)
+                                           GSocketEvent notification,
+                                           char *cdata)

 {
   wxSocketBase *sckobj = (wxSocketBase *)cdata;
 
 {
   wxSocketBase *sckobj = (wxSocketBase *)cdata;
 

-  sckobj->OnRequest((wxSocketNotify)event);
+  sckobj->OnRequest((wxSocketNotify) notification);

 }
 
 }
 

-wxSocketEventFlags wxSocketBase::EventToNotify(wxSocketNotify evt)
+void wxSocketBase::OnRequest(wxSocketNotify notification)

 {
 {

-  switch (evt)
-  {
-    case GSOCK_INPUT:      return GSOCK_INPUT_FLAG;
-    case GSOCK_OUTPUT:     return GSOCK_OUTPUT_FLAG;
-    case GSOCK_CONNECTION: return GSOCK_CONNECTION_FLAG;
-    case GSOCK_LOST:       return GSOCK_LOST_FLAG;
-  }
-  return 0;
-}
+  // NOTE: We duplicate some of the code in _Wait, but this doesn't
+  //   hurt. It has to be here because the (GSocket) event might arrive
+  //   a bit delayed, and it has to be in _Wait as well because we don't
+  //   know whether the Wait functions are being used.

 
 

-void wxSocketBase::SetNotify(wxSocketEventFlags flags)
-{
-  m_neededreq = flags;
-}
+  switch(notification)
+  {
+    case wxSOCKET_CONNECTION:
+      m_establishing = FALSE;
+      m_connected = TRUE;
+      break;

 
 

-void wxSocketBase::Notify(bool notify)
-{
-  m_notify_state = notify;
-}
+    // If we are in the middle of a R/W operation, do not
+    // propagate events to users. Also, filter 'late' events
+    // which are no longer valid.

 
 

-void wxSocketBase::OnRequest(wxSocketNotify req_evt)
-{
-  wxSocketEvent event(m_id);
-  wxSocketEventFlags flag = EventToNotify(req_evt);
+    case wxSOCKET_INPUT:
+      if (m_reading || !GSocket_Select(m_socket, GSOCK_INPUT_FLAG))
+        return;
+      break;

 
 

-  // fprintf(stderr, "%s: Entering OnRequest (evt %d)\n", (m_type == SOCK_CLIENT)? "client" : "server", req_evt);
+    case wxSOCKET_OUTPUT:
+      if (m_writing || !GSocket_Select(m_socket, GSOCK_OUTPUT_FLAG))
+        return;
+      break;

 
 

-  // NOTE: this duplicates some of the code in _Wait, (lost
-  // connections and delayed connection establishment) but
-  // this doesn't hurt. It has to be here because maybe the
-  // WaitXXX are not being used, and it has to be in _Wait
-  // as well because the event might be a bit delayed.
-  //
-  switch (req_evt)
-  {
-    case wxSOCKET_CONNECTION :
+    case wxSOCKET_LOST:
+      m_connected = FALSE;

       m_establishing = FALSE;
       m_establishing = FALSE;

-      m_connected = TRUE;

       break;
       break;

-    case wxSOCKET_LOST:
-      Close();
+
+    default:

       break;
       break;

+  }

 
 

-  // If we are in the middle of a R/W operation, do not
-  // propagate events to users.
-  //
-    case wxSOCKET_INPUT:
-      if (m_reading) return;
+  // Schedule the event

 
 

-    case wxSOCKET_OUTPUT:
-      if (m_writing) return;
+  wxSocketEventFlags flag = 0;
+  switch (notification)
+  {
+    case GSOCK_INPUT:      flag = GSOCK_INPUT_FLAG; break;
+    case GSOCK_OUTPUT:     flag = GSOCK_OUTPUT_FLAG; break;
+    case GSOCK_CONNECTION: flag = GSOCK_CONNECTION_FLAG; break;
+    case GSOCK_LOST:       flag = GSOCK_LOST_FLAG; break;
+    default:
+      wxLogWarning(_("wxSocket: unknown event!."));
+      return;

   }
 
   }
 

-  if (((m_neededreq & flag) == flag) && m_notify_state)
+  if (((m_eventmask & flag) == flag) && m_notify)

   {
   {

-    // fprintf(stderr, "%s: Evt %d delivered\n", (m_type == SOCK_CLIENT)? "client" : "server", req_evt);
-    event.m_socket = this;
-    event.m_skevt  = req_evt;
+    if (m_handler)
+    {
+      wxSocketEvent event(m_id);
+      event.m_event      = notification;
+      event.m_clientData = m_clientData;
+      event.SetEventObject(this);

 
 

-    if (m_evt_handler)
-#if EXPERIMENTAL_USE_POST
-      wxPostEvent(m_evt_handler, event);
-#else
-      ProcessEvent(event);
-#endif
+      m_handler->AddPendingEvent(event);
+    }

 
 

-    OldOnNotify(req_evt);
+#if WXWIN_COMPATIBILITY

     if (m_cbk)
     if (m_cbk)

-      m_cbk(*this, req_evt, m_cdata);
-
+      m_cbk(*this, notification, m_cdata);
+#endif // WXWIN_COMPATIBILITY

   }
   }

-
-  // fprintf(stderr, "%s: Exiting OnRequest (evt %d)\n", (m_type == SOCK_CLIENT)? "client" : "server", req_evt);

 }
 
 }
 

-void wxSocketBase::OldOnNotify(wxSocketNotify WXUNUSED(evt))
+void wxSocketBase::Notify(bool notify)

 {
 {

+  m_notify = notify;

 }
 
 }
 

-// --------------------------------------------------------------
-// wxSocketBase set event handler
-// --------------------------------------------------------------
-
-void wxSocketBase::SetEventHandler(wxEvtHandler& h_evt, int id)
+void wxSocketBase::SetNotify(wxSocketEventFlags flags)

 {
 {

-  m_evt_handler = &h_evt;
-  m_id = id;
+  m_eventmask = flags;
+}

 
 

-  SetNextHandler(&h_evt);
+void wxSocketBase::SetEventHandler(wxEvtHandler& handler, int id)
+{
+  m_handler = &handler;
+  m_id      = id;

 }
 
 }
 

-// --------------------------------------------------------------
-// wxSocketBase pushback
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Pushback buffer
+// --------------------------------------------------------------------------

 
 

-void wxSocketBase::Pushback(const char *buffer, wxUint32 size)
+void wxSocketBase::Pushback(const void *buffer, wxUint32 size)

 {
   if (!size) return;
 
   if (m_unread == NULL)
 {
   if (!size) return;
 
   if (m_unread == NULL)

-    m_unread = (char *)malloc(size);
+    m_unread = malloc(size);

   else
   {
   else
   {

-    char *tmp;
+    void *tmp;

 
 

-    tmp = (char *)malloc(m_unrd_size + size);
-    memcpy(tmp+size, m_unread, m_unrd_size);
+    tmp = malloc(m_unrd_size + size);
+    memcpy((char *)tmp + size, m_unread, m_unrd_size);

     free(m_unread);
 
     m_unread = tmp;
     free(m_unread);
 
     m_unread = tmp;


@@ -916,7 +965,7 @@ void wxSocketBase::Pushback(const char *buffer, wxUint32 size)
   memcpy(m_unread, buffer, size);
 }
 
   memcpy(m_unread, buffer, size);
 }
 

-wxUint32 wxSocketBase::GetPushback(char *buffer, wxUint32 size, bool peek)
+wxUint32 wxSocketBase::GetPushback(void *buffer, wxUint32 size, bool peek)

 {
   if (!m_unrd_size)
     return 0;
 {
   if (!m_unrd_size)
     return 0;


@@ -924,7 +973,7 @@ wxUint32 wxSocketBase::GetPushback(char *buffer, wxUint32 size, bool peek)
   if (size > (m_unrd_size-m_unrd_cur))
     size = m_unrd_size-m_unrd_cur;
 
   if (size > (m_unrd_size-m_unrd_cur))
     size = m_unrd_size-m_unrd_cur;
 

-  memcpy(buffer, (m_unread+m_unrd_cur), size);
+  memcpy(buffer, (char *)m_unread + m_unrd_cur, size);

 
   if (!peek)
   {
 
   if (!peek)
   {


@@ -941,17 +990,18 @@ wxUint32 wxSocketBase::GetPushback(char *buffer, wxUint32 size, bool peek)
   return size;
 }
 
   return size;
 }
 

-// --------------------------------------------------------------
-// wxSocketServer
-// --------------------------------------------------------------

 
 

-// --------------------------------------------------------------
-// wxSocketServer ctor and dtor
-// --------------------------------------------------------------
+// ==========================================================================
+// wxSocketServer                             
+// ==========================================================================
+
+// --------------------------------------------------------------------------
+// Ctor
+// --------------------------------------------------------------------------

 
 wxSocketServer::wxSocketServer(wxSockAddress& addr_man,
 
 wxSocketServer::wxSocketServer(wxSockAddress& addr_man,

-             wxSockFlags flags) :
-  wxSocketBase(flags, SOCK_SERVER)
+                               wxSocketFlags flags)
+              : wxSocketBase(flags, wxSOCKET_SERVER)

 {
   // Create the socket
   m_socket = GSocket_new();
 {
   // Create the socket
   m_socket = GSocket_new();


@@ -975,9 +1025,9 @@ wxSocketServer::wxSocketServer(wxSockAddress& addr_man,
 
 }
 
 
 }
 

-// --------------------------------------------------------------
-// wxSocketServer Accept
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Accept
+// --------------------------------------------------------------------------

 
 bool wxSocketServer::AcceptWith(wxSocketBase& sock, bool wait)
 {
 
 bool wxSocketServer::AcceptWith(wxSocketBase& sock, bool wait)
 {


@@ -986,23 +1036,22 @@ bool wxSocketServer::AcceptWith(wxSocketBase& sock, bool wait)
   if (!m_socket)
     return FALSE;
 
   if (!m_socket)
     return FALSE;
 

-  // GRG: If wait == FALSE, then the call should be nonblocking.
+  // If wait == FALSE, then the call should be nonblocking.

   // When we are finished, we put the socket to blocking mode
   // again.
 
   if (!wait)
   // When we are finished, we put the socket to blocking mode
   // again.
 
   if (!wait)

-    GSocket_SetNonBlocking(m_socket, TRUE);
+    GSocket_SetNonBlocking(m_socket, 1);

 
   child_socket = GSocket_WaitConnection(m_socket);
 
   if (!wait)
 
   child_socket = GSocket_WaitConnection(m_socket);
 
   if (!wait)

-    GSocket_SetNonBlocking(m_socket, FALSE);
+    GSocket_SetNonBlocking(m_socket, 0);

 
 

-  // GRG: this was not being handled!
-  if (child_socket == NULL)
+  if (!child_socket)

     return FALSE;
 
     return FALSE;
 

-  sock.m_type = SOCK_INTERNAL;
+  sock.m_type = wxSOCKET_BASE;

   sock.m_socket = child_socket;
   sock.m_connected = TRUE;
 
   sock.m_socket = child_socket;
   sock.m_connected = TRUE;
 


@@ -1018,7 +1067,7 @@ wxSocketBase *wxSocketServer::Accept(bool wait)
 {
   wxSocketBase* sock = new wxSocketBase();
 
 {
   wxSocketBase* sock = new wxSocketBase();
 

-  sock->SetFlags((wxSockFlags)m_flags);
+  sock->SetFlags(m_flags);

 
   if (!AcceptWith(*sock, wait))
     return NULL;
 
   if (!AcceptWith(*sock, wait))
     return NULL;


@@ -1031,16 +1080,16 @@ bool wxSocketServer::WaitForAccept(long seconds, long milliseconds)
   return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG);
 }
 
   return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG);
 }
 

-// --------------------------------------------------------------
+// ==========================================================================

 // wxSocketClient
 // wxSocketClient

-// --------------------------------------------------------------
+// ==========================================================================

 
 

-// --------------------------------------------------------------
-// wxSocketClient ctor and dtor
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Ctor and dtor
+// --------------------------------------------------------------------------

 
 

-wxSocketClient::wxSocketClient(wxSockFlags _flags) :
-  wxSocketBase(_flags, SOCK_CLIENT)
+wxSocketClient::wxSocketClient(wxSocketFlags flags)
+              : wxSocketBase(flags, wxSOCKET_CLIENT)

 {
 }
 
 {
 }
 


@@ -1048,22 +1097,21 @@ wxSocketClient::~wxSocketClient()
 {
 }
 
 {
 }
 

-// --------------------------------------------------------------
-// wxSocketClient Connect functions
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Connect
+// --------------------------------------------------------------------------

 
 bool wxSocketClient::Connect(wxSockAddress& addr_man, bool wait)
 {
   GSocketError err;
 
 
 bool wxSocketClient::Connect(wxSockAddress& addr_man, bool wait)
 {
   GSocketError err;
 

-  if (IsConnected())
-    Close();
-
-  // This should never happen.

   if (m_socket)
   if (m_socket)

+  {
+    // Shutdown and destroy the socket
+    Close();

     GSocket_destroy(m_socket);
     GSocket_destroy(m_socket);

+  }

 
 

-  // Initialize all socket stuff ...

   m_socket = GSocket_new();
   m_connected = FALSE;
   m_establishing = FALSE;
   m_socket = GSocket_new();
   m_connected = FALSE;
   m_establishing = FALSE;


@@ -1076,18 +1124,18 @@ bool wxSocketClient::Connect(wxSockAddress& addr_man, bool wait)
                                 GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG,
                                 wx_socket_callback, (char *)this);
 
                                 GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG,
                                 wx_socket_callback, (char *)this);
 

-  // GRG: If wait == FALSE, then the call should be nonblocking.
+  // If wait == FALSE, then the call should be nonblocking.

   // When we are finished, we put the socket to blocking mode
   // again.
 
   if (!wait)
   // When we are finished, we put the socket to blocking mode
   // again.
 
   if (!wait)

-    GSocket_SetNonBlocking(m_socket, TRUE);
+    GSocket_SetNonBlocking(m_socket, 1);

 
   GSocket_SetPeer(m_socket, addr_man.GetAddress());
   err = GSocket_Connect(m_socket, GSOCK_STREAMED);
 
   if (!wait)
 
   GSocket_SetPeer(m_socket, addr_man.GetAddress());
   err = GSocket_Connect(m_socket, GSOCK_STREAMED);
 
   if (!wait)

-    GSocket_SetNonBlocking(m_socket, FALSE);
+    GSocket_SetNonBlocking(m_socket, 0);

 
   if (err != GSOCK_NOERROR)
   {
 
   if (err != GSOCK_NOERROR)
   {


@@ -1109,17 +1157,19 @@ bool wxSocketClient::WaitOnConnect(long seconds, long milliseconds)
   if (!m_establishing || !m_socket)     // No connection in progress
     return FALSE;
 
   if (!m_establishing || !m_socket)     // No connection in progress
     return FALSE;
 

-  return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG);
+  return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG |
+                                      GSOCK_LOST_FLAG);

 }
 
 }
 

-// --------------------------------------------------------------
+// ==========================================================================

 // wxDatagramSocket
 // wxDatagramSocket

-// --------------------------------------------------------------
+// ==========================================================================

 
 /* NOTE: experimental stuff - might change */
 
 
 /* NOTE: experimental stuff - might change */
 

-wxDatagramSocket::wxDatagramSocket( wxSockAddress& addr, wxSockFlags flags )
-                : wxSocketBase( flags, SOCK_DATAGRAM )
+wxDatagramSocket::wxDatagramSocket( wxSockAddress& addr,
+                                    wxSocketFlags flags )
+                : wxSocketBase( flags, wxSOCKET_DATAGRAM )

 {
   // Create the socket
   m_socket = GSocket_new();
 {
   // Create the socket
   m_socket = GSocket_new();


@@ -1147,7 +1197,7 @@ wxDatagramSocket::wxDatagramSocket( wxSockAddress& addr, wxSockFlags flags )
 }
 
 wxDatagramSocket& wxDatagramSocket::RecvFrom( wxSockAddress& addr,
 }
 
 wxDatagramSocket& wxDatagramSocket::RecvFrom( wxSockAddress& addr,

-                                              char* buf,
+                                              void* buf,

                                               wxUint32 nBytes )
 {
     Read(buf, nBytes);
                                               wxUint32 nBytes )
 {
     Read(buf, nBytes);


@@ -1156,7 +1206,7 @@ wxDatagramSocket& wxDatagramSocket::RecvFrom( wxSockAddress& addr,
 }
 
 wxDatagramSocket& wxDatagramSocket::SendTo( wxSockAddress& addr,
 }
 
 wxDatagramSocket& wxDatagramSocket::SendTo( wxSockAddress& addr,

-                                            const char* buf,
+                                            const void* buf,

                                             wxUint32 nBytes )
 {
     GSocket_SetPeer(m_socket, addr.GetAddress());
                                             wxUint32 nBytes )
 {
     GSocket_SetPeer(m_socket, addr.GetAddress());


@@ -1164,44 +1214,36 @@ wxDatagramSocket& wxDatagramSocket::SendTo( wxSockAddress& addr,
     return (*this);
 }
 
     return (*this);
 }
 

-// --------------------------------------------------------------
+// ==========================================================================

 // wxSocketEvent
 // wxSocketEvent

-// --------------------------------------------------------------
+// ==========================================================================

 
 

-wxSocketEvent::wxSocketEvent(int id)
-  : wxEvent(id)
+wxSocketEvent::wxSocketEvent(int id) : wxEvent(id)

 {
 {

-  wxEventType type = (wxEventType)wxEVT_SOCKET;
-
-  SetEventType(type);
+  SetEventType( (wxEventType)wxEVT_SOCKET );

 }
 
 }
 

-void wxSocketEvent::CopyObject(wxObject& obj_d) const
+void wxSocketEvent::CopyObject(wxObject& object_dest) const

 {
 {

-  wxSocketEvent *event = (wxSocketEvent *)&obj_d;
+  wxSocketEvent *event = (wxSocketEvent *)&object_dest;

 
 

-  wxEvent::CopyObject(obj_d);
+  wxEvent::CopyObject(object_dest);

 
 

-  event->m_skevt = m_skevt;
-  event->m_socket = m_socket;
+  event->m_event      = m_event;
+  event->m_clientData = m_clientData;

 }
 
 }
 

-// --------------------------------------------------------------------------
+// ==========================================================================

 // wxSocketModule
 // wxSocketModule

-// --------------------------------------------------------------------------
+// ==========================================================================

 
 

-class WXDLLEXPORT wxSocketModule: public wxModule
+class WXDLLEXPORT wxSocketModule : public wxModule

 {
   DECLARE_DYNAMIC_CLASS(wxSocketModule)
 {
   DECLARE_DYNAMIC_CLASS(wxSocketModule)

+

 public:
 public:

-  bool OnInit()
-  {
-    return GSocket_Init();
-  }
-  void OnExit()
-  {
-    GSocket_Cleanup();
-  }
+  bool OnInit() { return GSocket_Init() != 0; }
+  void OnExit() { GSocket_Cleanup(); }

 };
 
 IMPLEMENT_DYNAMIC_CLASS(wxSocketModule, wxModule)
 };
 
 IMPLEMENT_DYNAMIC_CLASS(wxSocketModule, wxModule)