New WM decoration code. It fails to resize dialogs

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

diff --git a/src/common/socket.cpp b/src/common/socket.cpp
index 67113941b36b655b99bdda1ad3836538d44807ed..95669073cd46c8ea8a56b0f01b8e8048e4116bd2 100644 (file)
--- a/src/common/socket.cpp
+++ b/src/common/socket.cpp
@@ -1,22 +1,22 @@
-////////////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////////

 // Name:       socket.cpp
 // Purpose:    Socket handler classes
 // Name:       socket.cpp
 // Purpose:    Socket handler classes

-// Authors:    Guilhem Lavaux (completely rewritten from a basic API of Andrew
-//             Davidson(1995) in wxWeb)
+// Authors:    Guilhem Lavaux, Guillermo Rodriguez Garcia

 // Created:    April 1997
 // Created:    April 1997

-// Updated:    April 1999
-// Copyright:  (C) 1999 1998, 1997, Guilhem Lavaux
+// 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
 

-#ifdef __MWERKS__
-typedef int socklen_t ;
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 


@@ -26,1054 +26,1285 @@ typedef int socklen_t ;
 
 #if wxUSE_SOCKETS
 
 
 #if wxUSE_SOCKETS
 

-/////////////////////////////////////////////////////////////////////////////
-// wxWindows headers
-/////////////////////////////////////////////////////////////////////////////
-#include <wx/defs.h>
-#include <wx/object.h>
-#include <wx/string.h>
-#include <wx/timer.h>
-#include <wx/utils.h>
-
-// Not enough OS behaviour defined for wxStubs
-#ifndef __WXSTUBS__
+#include "wx/app.h"
+#include "wx/defs.h"
+#include "wx/object.h"
+#include "wx/string.h"
+#include "wx/timer.h"
+#include "wx/utils.h"
+#include "wx/module.h"
+#include "wx/log.h"
+#include "wx/intl.h"
+#include "wx/event.h"
+
+#if wxUSE_GUI
+  #include "wx/gdicmn.h"      // for wxPendingDelete
+#endif // wxUSE_GUI
+
+#include "wx/sckaddr.h"
+#include "wx/socket.h"
+
+// --------------------------------------------------------------------------
+// macros and constants
+// --------------------------------------------------------------------------
+
+// discard buffer
+#define MAX_DISCARD_SIZE (10 * 1024)
+
+// what to do within waits: in wxBase we don't do anything as we don't have
+// the event loop anyhow (for now). In GUI apps we have 2 cases: from the main
+// thread itself we have to call wxYield() to let the events (including the
+// GUI events and the low-level (not wxWindows) events from GSocket) be
+// processed. From another thread it is enough to just call wxThread::Yield()
+// which will give away the rest of our time slice: the explanation is that
+// the events will be processed by the main thread anyhow, without calling
+// wxYield(), but we don't want to eat the CPU time uselessly while sitting
+// in the loop waiting for the data
+#if wxUSE_GUI
+    #if wxUSE_THREADS
+        #define PROCESS_EVENTS()        \
+        {                               \
+            if ( wxThread::IsMain() )   \
+                wxYield();              \
+            else                        \
+                wxThread::Yield();      \
+        }
+    #else // !wxUSE_THREADS
+        #define PROCESS_EVENTS() wxYield()
+    #endif // wxUSE_THREADS/!wxUSE_THREADS
+#else // !wxUSE_GUI
+    #define PROCESS_EVENTS()
+#endif // wxUSE_GUI/!wxUSE_GUI
+
+// --------------------------------------------------------------------------
+// wxWin macros
+// --------------------------------------------------------------------------

 
 

-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-
-/////////////////////////////////////////////////////////////////////////////
-// System specific headers
-/////////////////////////////////////////////////////////////////////////////
-#ifdef __WXMAC__
-// in order to avoid problems with our c library and double definitions
-#define close closesocket
-#define ioctl ioctlsocket
-
-#include <wx/mac/macsock.h>
+IMPLEMENT_CLASS(wxSocketBase, wxObject)
+IMPLEMENT_CLASS(wxSocketServer, wxSocketBase)
+IMPLEMENT_CLASS(wxSocketClient, wxSocketBase)
+IMPLEMENT_CLASS(wxDatagramSocket, wxSocketBase)
+IMPLEMENT_DYNAMIC_CLASS(wxSocketEvent, wxEvent)

 
 

-#endif
+// --------------------------------------------------------------------------
+// private classes
+// --------------------------------------------------------------------------

 
 

-#if defined(__WINDOWS__)
-#include <winsock.h>
-#endif // __WINDOWS__
+class wxSocketState : public wxObject
+{
+public:
+  wxSocketFlags            m_flags;
+  wxSocketEventFlags       m_eventmask;
+  bool                     m_notify;
+  void                    *m_clientData;
+#if WXWIN_COMPATIBILITY
+  wxSocketBase::wxSockCbk  m_cbk;
+  char                    *m_cdata;
+#endif // WXWIN_COMPATIBILITY

 
 

-#if defined(__UNIX__)
+public:
+  wxSocketState() : wxObject() {}
+};

 
 

-#ifdef VMS
-#include <socket.h>
-#else
-#include <sys/socket.h>
-#endif
-#include <sys/ioctl.h>
+// ==========================================================================
+// wxSocketBase
+// ==========================================================================

 
 

-#include <sys/time.h>
-#include <unistd.h>
+// --------------------------------------------------------------------------
+// Initialization and shutdown
+// --------------------------------------------------------------------------

 
 

-#ifdef sun
-#include <sys/filio.h>
-#endif
+// FIXME-MT: all this is MT-unsafe, of course, we should protect all accesses
+//           to m_countInit with a crit section
+size_t wxSocketBase::m_countInit = 0;

 
 

-#endif // __UNIX__
+bool wxSocketBase::IsInitialized()
+{
+    return m_countInit > 0;
+}

 
 

-#include <signal.h>
-#include <errno.h>
+bool wxSocketBase::Initialize()
+{
+    if ( !m_countInit++ )
+    {
+        if ( !GSocket_Init() )
+        {
+            m_countInit--;

 
 

-#ifdef __VISUALC__
-#include <io.h>
-#endif
+            return FALSE;
+        }
+    }

 
 

-/////////////////////////////////////////////////////////////////////////////
-// wxSocket headers
-/////////////////////////////////////////////////////////////////////////////
-#include <wx/module.h>
-#define WXSOCK_INTERNAL
-#include <wx/sckaddr.h>
-#include <wx/socket.h>
-#include <wx/sckint.h>
-
-// ----------------------
-// Some patch ----- BEGIN
-// ----------------------
-#ifdef __WINDOWS__
-#define close closesocket
-#define ioctl ioctlsocket
-#ifdef errno
-#undef errno
-#endif
-#define errno WSAGetLastError()
-#ifdef EWOULDBLOCK
-#undef EWOULDBLOCK
-#endif
-#define EWOULDBLOCK WSAEWOULDBLOCK
-#define ETIMEDOUT WSAETIMEDOUT
-#undef EINTR
-#define EINTR WSAEINTR
-#endif
+    return TRUE;
+}

 
 

-#ifndef __WINDOWS__
-#define INVALID_SOCKET -1
-#endif
+void wxSocketBase::Shutdown()
+{
+    // we should be initialized
+    wxASSERT_MSG( m_countInit, _T("extra call to Shutdown()") );
+    if ( !--m_countInit )
+    {
+        GSocket_Cleanup();
+    }
+}

 
 

-#ifdef __WINDOWS__
-// This is an MS TCP/IP routine and is not needed here. Some WinSock
-// implementations (such as PC-NFS) will require you to include this
-// or a similar routine (see appendix in WinSock doc or help file).
+// --------------------------------------------------------------------------
+// Ctor and dtor
+// --------------------------------------------------------------------------

 
 

-#if defined( NEED_WSAFDIsSet ) || defined( __VISUALC__ )
-int PASCAL FAR __WSAFDIsSet(SOCKET fd, fd_set FAR *set)
+void wxSocketBase::Init()

 {
 {

-  int i = set->fd_count;
-
-  while (i--)
+  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
+
+  if ( !IsInitialized() )

   {
   {

-    if (set->fd_array[i] == fd)
-      return 1;
+      // this Initialize() will be undone by wxSocketModule::OnExit(), all the
+      // other calls to it should be matched by a call to Shutdown()
+      Initialize();

   }
   }

-
-  return 0;

 }
 }

-#endif
-#endif
-
-// -------------------
-// Some patch ---- END
-// -------------------
-
-#ifdef GetClassInfo
-#undef GetClassInfo
-#endif
-
-// --------------------------------------------------------------
-// Module
-// --------------------------------------------------------------
-class wxSocketModule: public wxModule 
-{
-  DECLARE_DYNAMIC_CLASS(wxSocketModule)
-public:
-  wxSocketModule() {}
-  bool OnInit();
-  void OnExit();
-};
-
-// --------------------------------------------------------------
-// ClassInfos
-// --------------------------------------------------------------
-#if !USE_SHARED_LIBRARY
-IMPLEMENT_CLASS(wxSocketBase, wxObject)
-IMPLEMENT_CLASS(wxSocketServer, wxSocketBase)
-IMPLEMENT_CLASS(wxSocketClient, wxSocketBase)
-IMPLEMENT_CLASS(wxSocketHandler, wxObject)
-IMPLEMENT_DYNAMIC_CLASS(wxSocketEvent, wxEvent)
-IMPLEMENT_DYNAMIC_CLASS(wxSocketModule, wxModule)
-#endif

 
 

-// --------------------------------------------------------------
-// --------- wxSocketBase CONSTRUCTOR ---------------------------
-// --------------------------------------------------------------
-wxSocketBase::wxSocketBase(wxSocketBase::wxSockFlags _flags,
-         wxSocketBase::wxSockType _type) :
-  wxEvtHandler(),
-  m_flags(_flags), m_type(_type), m_connected(FALSE), m_connecting(FALSE),
-  m_fd(INVALID_SOCKET), m_id(-1),
-  m_handler(0),
-  m_neededreq((wxRequestNotify)(REQ_READ | REQ_LOST)),
-  m_timeout(3600),
-  m_unread(NULL), m_unrd_size(0),
-  m_cbk(NULL), m_cdata(NULL),
-  m_notify_state(FALSE)
+wxSocketBase::wxSocketBase()

 {
 {

-  m_internal = new wxSocketInternal(this);
+  Init();

 }
 
 }
 

-wxSocketBase::wxSocketBase() :
-  wxEvtHandler(),
-  m_flags(WAITALL), m_type(SOCK_UNINIT), m_connected(FALSE),
-  m_connecting(FALSE), m_fd(INVALID_SOCKET),
-  m_id(-1), m_handler(0),
-  m_neededreq((wxRequestNotify)(REQ_READ | REQ_LOST)),
-  m_timeout(3600),
-  m_unread(NULL), m_unrd_size(0),
-  m_cbk(NULL), m_cdata(NULL),
-  m_notify_state(FALSE)
+wxSocketBase::wxSocketBase(wxSocketFlags flags, wxSocketType type)

 {
 {

-  m_internal = new wxSocketInternal(this);
-}
+  Init();

 
 

-// --------------------------------------------------------------
-// wxSocketBase
-// --------------------------------------------------------------
+  m_flags = flags;
+  m_type  = type;
+}

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

-  // First, close the file descriptor.
-  Close();
+  // 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

 
 

-  m_internal->FinalizeSocket();
+  // Shutdown and close the socket
+  if (!m_beingDeleted)
+    Close();

 
 

+  // Destroy the GSocket object
+  if (m_socket)
+    GSocket_destroy(m_socket);
+
+  // Free the pushback buffer

   if (m_unread)
     free(m_unread);
   if (m_unread)
     free(m_unread);

-  // Unregister from the handler database.
-  if (m_handler) 
-    m_handler->UnRegister(this);
+}

 
 

-  // Destroy all saved states.
-  m_states.DeleteContents(TRUE);
+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;

 
 

-  // Destroy the socket manager.
-  delete m_internal;
+  // 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()
 {
 bool wxSocketBase::Close()
 {

-  if (m_fd != INVALID_SOCKET) 
+  // Interrupt pending waits
+  InterruptWait();
+
+  if (m_socket)

   {
   {

-    // Pause all running socket thread.
-    m_internal->PauseSocket();
-
-    // Shutdown the connection.
-    shutdown(m_fd, 2);
-    close(m_fd);
-    m_fd = INVALID_SOCKET;
-    m_connected = FALSE;
+    // Disable callbacks
+    GSocket_UnsetCallback(m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
+                                    GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG);
+
+    // Shutdown the connection
+    GSocket_Shutdown(m_socket);

   }
 
   }
 

+  m_connected = FALSE;
+  m_establishing = FALSE;

   return TRUE;
 }
 
   return TRUE;
 }
 

-// --------------------------------------------------------------
-// wxSocketBase base IO function
-// --------------------------------------------------------------
-
-wxSocketBase& wxSocketBase::Read(char* buffer, size_t nbytes)
+wxSocketBase& wxSocketBase::Read(void* buffer, wxUint32 nbytes)

 {
 {

-  m_lcount = GetPushback(buffer, nbytes, FALSE);
-  nbytes -= m_lcount;
-  buffer += m_lcount;
-
-  // If we have got the whole needed buffer or if we don't want to
-  // wait then it returns immediately.
-  if (!nbytes || (m_lcount && !(m_flags & WAITALL)) ) {
-    return *this;
-  }
+  // Mask read events
+  m_reading = TRUE;
+
+  m_lcount = _Read(buffer, nbytes);
+
+  // 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);

 
 

-  WantBuffer(buffer, nbytes, EVT_READ);
+  // Allow read events from now on
+  m_reading = FALSE;

 
   return *this;
 }
 
 
   return *this;
 }
 

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

 {
 {

-  m_lcount = GetPushback(buffer, nbytes, TRUE);
-  if (nbytes-m_lcount == 0) 
+  int total;
+  int ret = 1;
+
+  // Try the pushback buffer first
+  total = GetPushback(buffer, nbytes, FALSE);
+  nbytes -= total;
+  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
+  // wxSOCKET_WAITALL (with or without wxSOCKET_BLOCK)
+  // wxSOCKET_BLOCK
+  // wxSOCKET_NONE
+  //
+  if (m_flags & wxSOCKET_NOWAIT)

   {
   {

-    return *this;
+    GSocket_SetNonBlocking(m_socket, 1);
+    ret = GSocket_Read(m_socket, (char *)buffer, nbytes);
+    GSocket_SetNonBlocking(m_socket, 0);
+
+    if (ret > 0)
+      total += ret;

   }
   }

-  buffer += m_lcount;
-  nbytes -= m_lcount;
+  else
+  {
+    bool more = TRUE;

 
 

-  WantBuffer(buffer, nbytes, EVT_PEEK);
+    while (more)
+    {
+      if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForRead() )
+        break;
+
+      ret = GSocket_Read(m_socket, (char *)buffer, nbytes);
+
+      if (ret > 0)
+      {
+        total  += ret;
+        nbytes -= ret;
+        buffer  = (char *)buffer + 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 *this;
+  return total;

 }
 
 }
 

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

 {
 {

-  m_lcount = 0;
-  WantBuffer((char *)buffer, nbytes, EVT_WRITE);
-  return *this;
-}
+  wxUint32 len, len2, sig, total;
+  bool error;
+  int old_flags;
+  struct
+  {
+    unsigned char sig[4];
+    unsigned char len[4];
+  } msg;

 
 

-wxSocketBase& wxSocketBase::Unread(const char *buffer, size_t nbytes)
-{
-  CreatePushbackAfter(buffer, nbytes);
-  return *this;
-}
+  // Mask read events
+  m_reading = TRUE;

 
 

-bool wxSocketBase::IsData() const
-{
-  struct timeval tv;
-  fd_set sock_set;
+  total = 0;
+  error = TRUE;
+  old_flags = m_flags;
+  SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);

 
 

-  if (m_fd < 0)
-    return FALSE;
-  if (m_unrd_size > 0)
-    return TRUE;
+  if (_Read(&msg, sizeof(msg)) != sizeof(msg))
+    goto exit;

 
 

-  m_internal->AcquireFD();
+  sig = (wxUint32)msg.sig[0];
+  sig |= (wxUint32)(msg.sig[1] << 8);
+  sig |= (wxUint32)(msg.sig[2] << 16);
+  sig |= (wxUint32)(msg.sig[3] << 24);

 
 

-  tv.tv_sec = 0;
-  tv.tv_usec = 0;
-  FD_ZERO(&sock_set);
-  FD_SET(m_fd, &sock_set);
-  select(FD_SETSIZE, &sock_set, NULL, NULL, &tv);
+  if (sig != 0xfeeddead)
+  {
+    wxLogWarning(_("wxSocket: invalid signature in ReadMsg."));
+    goto exit;
+  }

 
 

-  m_internal->ReleaseFD();
+  len = (wxUint32)msg.len[0];
+  len |= (wxUint32)(msg.len[1] << 8);
+  len |= (wxUint32)(msg.len[2] << 16);
+  len |= (wxUint32)(msg.len[3] << 24);

 
 

-  return (FD_ISSET(m_fd, &sock_set) != 0);
-}
+  if (len > nbytes)
+  {
+    len2 = len - nbytes;
+    len = nbytes;
+  }
+  else
+    len2 = 0;

 
 

-// ---------------------------------------------------------------------
-// --------- wxSocketBase Discard(): deletes all byte in the input queue
-// ---------------------------------------------------------------------
-void wxSocketBase::Discard()
-{
-#define MAX_BUFSIZE (10*1024)
-  char *my_data = new char[MAX_BUFSIZE];
-  size_t recv_size = MAX_BUFSIZE;
+  // Don't attemp to read if the msg was zero bytes long.
+  if (len)
+  {
+    total = _Read(buffer, len);
+
+    if (total != len)
+      goto exit;
+  }
+  if (len2)
+  {
+    char *discard_buffer = new char[MAX_DISCARD_SIZE];
+    long discard_len;
+
+    // NOTE: discarded bytes don't add to m_lcount.
+    do
+    {
+      discard_len = ((len2 > MAX_DISCARD_SIZE)? MAX_DISCARD_SIZE : len2);
+      discard_len = _Read(discard_buffer, (wxUint32)discard_len);
+      len2 -= (wxUint32)discard_len;
+    }
+    while ((discard_len > 0) && len2);
+
+    delete [] discard_buffer;
+
+    if (len2 != 0)
+      goto exit;
+  }
+  if (_Read(&msg, sizeof(msg)) != sizeof(msg))
+    goto exit;

 
 

-  SaveState();
-  SetFlags((wxSockFlags)(NOWAIT | SPEED));
+  sig = (wxUint32)msg.sig[0];
+  sig |= (wxUint32)(msg.sig[1] << 8);
+  sig |= (wxUint32)(msg.sig[2] << 16);
+  sig |= (wxUint32)(msg.sig[3] << 24);

 
 

-  while (recv_size == MAX_BUFSIZE) 
+  if (sig != 0xdeadfeed)

   {
   {

-    recv_size = Read(my_data, MAX_BUFSIZE).LastCount();
+    wxLogWarning(_("wxSocket: invalid signature in ReadMsg."));
+    goto exit;

   }
 
   }
 

-  RestoreState();
-  delete [] my_data;
+  // everything was OK
+  error = FALSE;

 
 

-#undef MAX_BUFSIZE
+exit:
+  m_error = error;
+  m_lcount = total;
+  m_reading = FALSE;
+  SetFlags(old_flags);
+
+  return *this;

 }
 
 }
 

-// If what? Who seems to need unsigned int?
-// BTW uint isn't even defined on wxMSW for VC++ for some reason. Even if it
-// were, getpeername/getsockname don't take unsigned int*, they take int*.
-//
-// Under glibc 2.0.7, socketbits.h declares socklen_t to be unsigned int
-// and it uses *socklen_t as the 3rd parameter. Robert.
+wxSocketBase& wxSocketBase::Peek(void* buffer, wxUint32 nbytes)
+{
+  // Mask read events
+  m_reading = TRUE;

 
 

-// JACS - How can we detect this?
-// Meanwhile, if your compiler complains about socklen_t,
-// switch lines below.
+  m_lcount = _Read(buffer, nbytes);
+  Pushback(buffer, m_lcount);

 
 

-#if wxHAVE_GLIBC2
-#   define wxSOCKET_INT socklen_t
-#else
-#   define wxSOCKET_INT int
-#endif
+  // 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);

 
 

-// --------------------------------------------------------------
-// wxSocketBase socket info functions
-// --------------------------------------------------------------
+  // Allow read events again
+  m_reading = FALSE;

 
 

-bool wxSocketBase::GetPeer(wxSockAddress& addr_man) const
+  return *this;
+}
+
+wxSocketBase& wxSocketBase::Write(const void *buffer, wxUint32 nbytes)

 {
 {

-  struct sockaddr my_addr;
-  wxSOCKET_INT len_addr = sizeof(my_addr);
+  // Mask write events
+  m_writing = TRUE;

 
 

-  if (m_fd < 0)
-    return FALSE;
+  m_lcount = _Write(buffer, nbytes);

 
 

-  m_internal->AcquireFD();
+  // If in wxSOCKET_WAITALL mode, all bytes should have been written.
+  if (m_flags & wxSOCKET_WAITALL)
+    m_error = (m_lcount != nbytes);
+  else
+    m_error = (m_lcount == 0);

 
 

-  if (getpeername(m_fd, (struct sockaddr *)&my_addr, &len_addr) < 0) {
-    m_internal->ReleaseFD();
-    return FALSE;
-  }
+  // Allow write events again
+  m_writing = FALSE;

 
 

-  m_internal->ReleaseFD();
-  addr_man.Disassemble(&my_addr, len_addr);
-  return TRUE;
+  return *this;

 }
 
 }
 

-bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const
+wxUint32 wxSocketBase::_Write(const void *buffer, wxUint32 nbytes)

 {
 {

-  struct sockaddr my_addr;
-  wxSOCKET_INT len_addr = sizeof(my_addr);
+  wxUint32 total = 0;
+  int ret = 1;

 
 

-  if (m_fd < 0)
-    return FALSE;
+  // If the socket is invalid or parameters are ill, return immediately
+  if (!m_socket || !buffer || !nbytes)
+    return 0;

 
 

-  m_internal->AcquireFD();
+  // Possible combinations (they are checked in this order)
+  // wxSOCKET_NOWAIT
+  // wxSOCKET_WAITALL (with or without wxSOCKET_BLOCK)
+  // wxSOCKET_BLOCK
+  // wxSOCKET_NONE
+  //
+  if (m_flags & wxSOCKET_NOWAIT)
+  {
+    GSocket_SetNonBlocking(m_socket, 1);
+    ret = GSocket_Write(m_socket, (const char *)buffer, nbytes);
+    GSocket_SetNonBlocking(m_socket, 0);

 
 

-  if (getsockname(m_fd, (struct sockaddr *)&my_addr, &len_addr) < 0) {
-    m_internal->ReleaseFD();
-    return FALSE;
+    if (ret > 0)
+      total = ret;

   }
   }

-  m_internal->ReleaseFD();
+  else
+  {
+    bool more = TRUE;

 
 

-  addr_man.Disassemble(&my_addr, len_addr);
-  return TRUE;
-}
+    while (more)
+    {
+      if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForWrite() )
+        break;
+
+      ret = GSocket_Write(m_socket, (const char *)buffer, nbytes);
+
+      if (ret > 0)
+      {
+        total  += ret;
+        nbytes -= ret;
+        buffer  = (const char *)buffer + 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));
+    }
+  }

 
 

-// --------------------------------------------------------------
-// wxSocketBase wait functions
-// --------------------------------------------------------------
+  return total;
+}

 
 

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

 {
 {

-  SocketState *state = new SocketState;
+  wxUint32 total;
+  bool error;
+  int old_flags;
+  struct
+  {
+    unsigned char sig[4];
+    unsigned char len[4];
+  } msg;

 
 

-  state->notify_state     = m_notify_state;
-  state->evt_notify_state = m_neededreq;
-  state->socket_flags     = m_flags;
-  state->c_callback       = m_cbk;
-  state->c_callback_data  = m_cdata;
+  // Mask write events
+  m_writing = TRUE;

 
 

-  m_states.Append((wxObject *)state);
-}
+  error = TRUE;
+  total = 0;
+  old_flags = m_flags;
+  SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL);

 
 

-void wxSocketBase::RestoreState()
-{
-  wxNode *node;
-  SocketState *state;
+  msg.sig[0] = (unsigned char) 0xad;
+  msg.sig[1] = (unsigned char) 0xde;
+  msg.sig[2] = (unsigned char) 0xed;
+  msg.sig[3] = (unsigned char) 0xfe;

 
 

-  node = m_states.Last();
-  if (!node)
-    return;
+  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);

 
 

-  state = (SocketState *)node->Data();
+  if (_Write(&msg, sizeof(msg)) < sizeof(msg))
+    goto exit;

 
 

-  SetFlags(state->socket_flags);
-  m_neededreq = state->evt_notify_state;
-  m_cbk       = state->c_callback;
-  m_cdata     = state->c_callback_data;
-  Notify(state->notify_state);
+  total = _Write(buffer, nbytes);

 
 

-  delete node;
-  delete state;
-}
+  if (total < nbytes)
+    goto exit;

 
 

-// --------------------------------------------------------------
-// --------- wxSocketBase callback functions --------------------
-// --------------------------------------------------------------
+  msg.sig[0] = (unsigned char) 0xed;
+  msg.sig[1] = (unsigned char) 0xfe;
+  msg.sig[2] = (unsigned char) 0xad;
+  msg.sig[3] = (unsigned char) 0xde;
+  msg.len[0] = msg.len[1] = msg.len[2] = msg.len[3] = (char) 0;

 
 

-wxSocketBase::wxSockCbk wxSocketBase::Callback(wxSockCbk cbk_)
+  if ((_Write(&msg, sizeof(msg))) < sizeof(msg))
+    goto exit;
+
+  // everything was OK
+  error = FALSE;
+
+exit:
+  m_error = error;
+  m_lcount = total;
+  m_writing = FALSE;
+
+  return *this;
+}
+
+wxSocketBase& wxSocketBase::Unread(const void *buffer, wxUint32 nbytes)

 {
 {

-  wxSockCbk old_cbk = cbk_;
+  if (nbytes != 0)
+    Pushback(buffer, nbytes);

 
 

-  m_cbk = cbk_;
-  return old_cbk;
+  m_error = FALSE;
+  m_lcount = nbytes;
+
+  return *this;

 }
 
 }
 

-char *wxSocketBase::CallbackData(char *data)
+wxSocketBase& wxSocketBase::Discard()

 {
 {

-  char *old_data = m_cdata;
+  int old_flags;
+  char *buffer = new char[MAX_DISCARD_SIZE];
+  wxUint32 ret;
+  wxUint32 total = 0;

 
 

-  m_cdata = data;
-  return old_data;
+  // Mask read events
+  m_reading = TRUE;
+
+  old_flags = m_flags;
+  SetFlags(wxSOCKET_NOWAIT);
+
+  do
+  {
+    ret = _Read(buffer, MAX_DISCARD_SIZE);
+    total += ret;
+  }
+  while (ret == MAX_DISCARD_SIZE);
+
+  delete[] buffer;
+  m_lcount = total;
+  m_error  = FALSE;
+
+  // Allow read events again
+  m_reading = FALSE;
+
+  return *this;

 }
 
 }
 

-// --------------------------------------------------------------
-// --------- wxSocketBase wait functions ------------------------
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Wait functions
+// --------------------------------------------------------------------------
+
+// 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, int type)
+bool wxSocketBase::_Wait(long seconds,
+                         long milliseconds,
+                         wxSocketEventFlags flags)

 {
 {

-  SockRequest *req;
+  GSocketEventFlags result;
+  long timeout;

 
 

-  if ((!m_connected && !m_connecting) || m_fd < 0)
+  // Set this to TRUE to interrupt ongoing waits
+  m_interrupt = FALSE;
+
+  // Check for valid socket
+  if (!m_socket)

     return FALSE;
 
     return FALSE;
 

-  req = new SockRequest;
+  // Check for valid timeout value.
+  if (seconds != -1)
+    timeout = seconds * 1000 + milliseconds;
+  else
+    timeout = m_timeout * 1000;
+
+  // Wait in an active polling loop.
+  //
+  // 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
+  // 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);
+
+    // Incoming connection (server) or connection established (client)
+    if (result & GSOCK_CONNECTION_FLAG)
+    {
+      m_connected = TRUE;
+      m_establishing = FALSE;
+      return TRUE;
+    }
+
+    // Data available or output buffer ready
+    if ((result & GSOCK_INPUT_FLAG) || (result & GSOCK_OUTPUT_FLAG))
+    {
+      return TRUE;
+    }
+
+    // Connection lost
+    if (result & GSOCK_LOST_FLAG)
+    {
+      m_connected = FALSE;
+      m_establishing = FALSE;
+      return (flags & GSOCK_LOST_FLAG) != 0;
+    }

 
 

-  req->type = REQ_WAIT | type;
-  req->timeout = seconds * 1000 + milliseconds;
-  req->done = FALSE;
-  req->buffer = NULL;
-  req->size = 0;
-  req->error = 0;
-  req->wait = TRUE;
-  m_internal->QueueRequest(req, TRUE);
+    // Wait more?
+    if ((!timeout) || (chrono.Time() > timeout) || (m_interrupt))
+      done = TRUE;
+    else
+      PROCESS_EVENTS();
+  }

 
 

-  return (req->io_nbytes != 0);
+  return FALSE;

 }
 
 bool wxSocketBase::Wait(long seconds, long milliseconds)
 {
 }
 
 bool wxSocketBase::Wait(long seconds, long milliseconds)
 {

-  return _Wait(seconds, milliseconds, REQ_ACCEPT | REQ_CONNECT |
-                                      REQ_READ | REQ_WRITE | REQ_LOST);
+  return _Wait(seconds, milliseconds, GSOCK_INPUT_FLAG |
+                                      GSOCK_OUTPUT_FLAG |
+                                      GSOCK_CONNECTION_FLAG |
+                                      GSOCK_LOST_FLAG);

 }
 
 bool wxSocketBase::WaitForRead(long seconds, long milliseconds)
 {
 }
 
 bool wxSocketBase::WaitForRead(long seconds, long milliseconds)
 {

-  return _Wait(seconds, milliseconds, REQ_READ | REQ_LOST);
+  // Check pushback buffer before entering _Wait
+  if (m_unread)
+    return TRUE;
+
+  // 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)
 {

-  return _Wait(seconds, milliseconds, REQ_WRITE);
+  return _Wait(seconds, milliseconds, GSOCK_OUTPUT_FLAG);

 }
 
 bool wxSocketBase::WaitForLost(long seconds, long milliseconds)
 {
 }
 
 bool wxSocketBase::WaitForLost(long seconds, long milliseconds)
 {

-  return _Wait(seconds, milliseconds, REQ_LOST);
+  return _Wait(seconds, milliseconds, GSOCK_LOST_FLAG);

 }
 
 }
 

-// --------------------------------------------------------------
-// --------- wxSocketBase callback management -------------------
-// --------------------------------------------------------------
+// --------------------------------------------------------------------------
+// Miscellaneous
+// --------------------------------------------------------------------------

 
 

-wxSocketBase::wxRequestNotify wxSocketBase::EventToNotify(wxRequestEvent evt)
-{
-  switch (evt) 
-  {
-  case EVT_READ:
-    return REQ_READ;
-  case EVT_PEEK:
-    return REQ_PEEK;
-  case EVT_WRITE:
-    return REQ_WRITE;
-  case EVT_LOST:
-    return REQ_LOST;
-  case EVT_ACCEPT:
-    return REQ_ACCEPT;
-  case EVT_CONNECT:
-    return REQ_CONNECT;
-  }
-  return 0;
-}
+//
+// Get local or peer address
+//

 
 

-void wxSocketBase::SetFlags(wxSockFlags _flags)
+bool wxSocketBase::GetPeer(wxSockAddress& addr_man) const

 {
 {

-  m_flags = _flags;
-  if (_flags & SPEED) {
-    // SPEED and WAITALL are antagonists.
-    m_flags = (wxSockFlags)(m_flags & ~WAITALL);
-  }
-}
+  GAddress *peer;

 
 

-wxSocketBase::wxSockFlags wxSocketBase::GetFlags() const
-{
-  return m_flags;
-}
+  if (!m_socket)
+    return FALSE;

 
 

-void wxSocketBase::SetNotify(wxRequestNotify flags)
-{
-  /* Check if server */
-  if (m_type != SOCK_SERVER)
-    flags &= ~REQ_ACCEPT;
+  peer = GSocket_GetPeer(m_socket);
+  addr_man.SetAddress(peer);
+  GAddress_destroy(peer);

 
 

-  m_neededreq = flags;
-  if (m_neededreq == 0)
-    m_internal->DisableWaiter();
-  else
-    Notify(m_notify_state);
+  return TRUE;

 }
 
 }
 

-void wxSocketBase::Notify(bool notify)
+bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const

 {
 {

-  if (notify)
-    m_internal->EnableWaiter();
-  else
-    m_internal->DisableWaiter();
-  m_notify_state = notify;
-}
+  GAddress *local;

 
 

-void wxSocketBase::OnRequest(wxRequestEvent req_evt)
-{
-  wxSocketEvent event(m_id);
-  wxRequestNotify notify = EventToNotify(req_evt);
-
-  if ((m_neededreq & notify) == notify) {
-    event.m_socket = this;
-    event.m_skevt = req_evt;
-    ProcessEvent(event);
-    // TODOTODO
-    // OldOnNotify(req_evt);
-
-    // We disable the event reporting.
-    SetNotify(m_neededreq & ~notify);
-  }
-}
+  if (!m_socket)
+    return FALSE;

 
 

-wxSocketEvent::wxSocketEvent(int id)
-  : wxEvent(id)
-{
-  wxEventType type = (wxEventType)wxEVT_SOCKET;
+  local = GSocket_GetLocal(m_socket);
+  addr_man.SetAddress(local);
+  GAddress_destroy(local);

 
 

-  SetEventType(type);
+  return TRUE;

 }
 
 }
 

-wxObject *wxSocketEvent::Clone() const
+//
+// Save and restore socket state
+//
+
+void wxSocketBase::SaveState()

 {
 {

-  wxSocketEvent *event = (wxSocketEvent *)wxEvent::Clone();
+  wxSocketState *state;

 
 

-  event->m_skevt = m_skevt;
-  event->m_socket = m_socket;
+  state = new wxSocketState();

 
 

-  return event;
+  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::OldOnNotify(wxRequestEvent evt)
+void wxSocketBase::RestoreState()

 {
 {

-}
+  wxNode *node;
+  wxSocketState *state;
+
+  node = m_states.Last();
+  if (!node)
+    return;

 
 

-// --------------------------------------------------------------
-// --------- wxSocketBase functions [Callback, CallbackData] ----
-// --------------------------------------------------------------
+  state = (wxSocketState *)node->Data();

 
 

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

 }
 
 }
 

-// --------------------------------------------------------------
-// --------- wxSocketBase pushback library ----------------------
-// --------------------------------------------------------------
+//
+// Timeout and flags
+//

 
 

-void wxSocketBase::CreatePushbackAfter(const char *buffer, size_t size)
+void wxSocketBase::SetTimeout(long seconds)

 {
 {

-  char *curr_pos;
-
-  if (m_unread != NULL)
-    m_unread = (char *) realloc(m_unread, m_unrd_size+size);
-  else
-    m_unread = (char *) malloc(size);
-  curr_pos = m_unread + m_unrd_size;
+  m_timeout = seconds;

 
 

-  memcpy(curr_pos, buffer, size);
-  m_unrd_size += size;
+  if (m_socket)
+    GSocket_SetTimeout(m_socket, m_timeout * 1000);

 }
 
 }
 

-void wxSocketBase::CreatePushbackBefore(const char *buffer, size_t size)
+void wxSocketBase::SetFlags(wxSocketFlags flags)

 {
 {

-  char *curr_pos, *new_buf;
+  m_flags = flags;
+}

 
 

-  new_buf = (char *) malloc(m_unrd_size+size);
-  curr_pos = new_buf + size;

 
 

-  memcpy(new_buf, buffer, size);
-  if (m_unrd_size != 0) {
-    memcpy(curr_pos, m_unread, m_unrd_size);
-    free(m_unread);
-  }
-  m_unread = new_buf;
-  m_unrd_size += size;
-}
+// --------------------------------------------------------------------------
+// Callbacks (now obsolete - use events instead)
+// --------------------------------------------------------------------------

 
 

-size_t wxSocketBase::GetPushback(char *buffer, size_t size, bool peek)
+#if WXWIN_COMPATIBILITY
+
+wxSocketBase::wxSockCbk wxSocketBase::Callback(wxSockCbk cbk_)

 {
 {

-  if (!m_unrd_size)
-    return 0;
+  wxSockCbk old_cbk = cbk_;

 
 

-  if (size > m_unrd_size)
-    size = m_unrd_size;
-  memcpy(buffer, m_unread, size);
+  m_cbk = cbk_;
+  return old_cbk;
+}

 
 

-  if (!peek) {
-    m_unrd_size -= size;
-    if (m_unrd_size == 0) {
-      free(m_unread);
-      m_unread = NULL;
-    }
-  }
+char *wxSocketBase::CallbackData(char *data)
+{
+  char *old_data = m_cdata;

 
 

-  return size;
+  m_cdata = data;
+  return old_data;

 }
 
 }
 

-// --------------------------------------------------------------
-// --------- wxSocketBase buffer core requester -----------------
-// --------------------------------------------------------------
+#endif // WXWIN_COMPATIBILITY

 
 

-void wxSocketBase::WantBuffer(char *buffer, size_t nbytes,
-            wxRequestEvent evt)
-{
-  bool buf_timed_out;
-
-  if (m_fd == INVALID_SOCKET || !m_handler || !m_connected)
-    return;
+// --------------------------------------------------------------------------
+// Event handling
+// --------------------------------------------------------------------------

 
 

-  SockRequest *buf = new SockRequest;
-
-  SaveState();
-  m_internal->DisableWaiter(); 
-  buf->buffer = buffer;
-  buf->size = nbytes;
-  buf->done = FALSE;
-  buf->type = EventToNotify(evt);
-  buf->io_nbytes = 0;
-  buf->error = 0;
-  buf->wait = TRUE;
-  buf->timeout = 1000;
-  buf_timed_out = FALSE;
-
-  if (m_flags & SPEED) 
-    m_internal->QueueRequest(buf, FALSE);
-  else
-    if (m_flags & NOWAIT) 
-      m_internal->QueueRequest(buf, TRUE);
-    else 
-      m_internal->QueueRequest(buf, TRUE);
-  m_lcount += buf->io_nbytes;
-  if (buf_timed_out)
-    m_error = ETIMEDOUT;
-  else
-    m_error = buf->error;
+// 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.
+
+extern "C"
+void LINKAGEMODE wx_socket_callback(GSocket * WXUNUSED(socket),
+                                    GSocketEvent notification,
+                                    char *cdata)
+{
+  wxSocketBase *sckobj = (wxSocketBase *)cdata;

 
 

-  delete buf;
-  RestoreState();
+  sckobj->OnRequest((wxSocketNotify) notification);

 }
 
 }
 

-// --------------------------------------------------------------
-// wxSocketServer
-// --------------------------------------------------------------
-
-wxSocketServer::wxSocketServer(wxSockAddress& addr_man,
-             wxSockFlags flags) :
-  wxSocketBase(flags, SOCK_SERVER)
+void wxSocketBase::OnRequest(wxSocketNotify notification)

 {
 {

-  m_fd = socket(addr_man.GetFamily(), SOCK_STREAM, 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.

 
 

-  if (m_fd == INVALID_SOCKET)
-    return;
+  switch(notification)
+  {
+    case wxSOCKET_CONNECTION:
+      m_establishing = FALSE;
+      m_connected = TRUE;
+      break;
+
+    // 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.
+
+    case wxSOCKET_INPUT:
+      if (m_reading || !GSocket_Select(m_socket, GSOCK_INPUT_FLAG))
+        return;
+      break;
+
+    case wxSOCKET_OUTPUT:
+      if (m_writing || !GSocket_Select(m_socket, GSOCK_OUTPUT_FLAG))
+        return;
+      break;
+
+    case wxSOCKET_LOST:
+      m_connected = FALSE;
+      m_establishing = FALSE;
+      break;
+
+    default:
+      break;
+  }

 
 

-  int flag = 1;
-  setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (char*)&flag, sizeof(int));
+  // Schedule the event

 
 

-  struct sockaddr *myaddr;
-  size_t len;
+  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;
+  }

 
 

-  addr_man.Build(myaddr, len);
-  if (bind(m_fd, myaddr, addr_man.SockAddrLen()) < 0)
-    return;
+  if (((m_eventmask & flag) == flag) && m_notify)
+  {
+    if (m_handler)
+    {
+      wxSocketEvent event(m_id);
+      event.m_event      = notification;
+      event.m_clientData = m_clientData;
+      event.SetEventObject(this);

 
 

-  if (listen(m_fd, 5) < 0) {
-    m_fd = INVALID_SOCKET;
-    return;
+      m_handler->AddPendingEvent(event);
+    }
+
+#if WXWIN_COMPATIBILITY
+    if (m_cbk)
+      m_cbk(*this, notification, m_cdata);
+#endif // WXWIN_COMPATIBILITY

   }
   }

+}

 
 

-  m_internal->InitializeSocket();
+void wxSocketBase::Notify(bool notify)
+{
+  m_notify = notify;

 }
 
 }
 

-// --------------------------------------------------------------
-// wxSocketServer Accept
-// --------------------------------------------------------------
+void wxSocketBase::SetNotify(wxSocketEventFlags flags)
+{
+  m_eventmask = flags;
+}

 
 

-bool wxSocketServer::AcceptWith(wxSocketBase& sock)
+void wxSocketBase::SetEventHandler(wxEvtHandler& handler, int id)

 {
 {

-  int fd2;
+  m_handler = &handler;
+  m_id      = id;
+}

 
 

-  if ((fd2 = accept(m_fd, 0, 0)) < 0)
-    return FALSE;
+// --------------------------------------------------------------------------
+// Pushback buffer
+// --------------------------------------------------------------------------

 
 

-  struct linger linger;
-  linger.l_onoff = 0;
-  linger.l_linger = 1;
+void wxSocketBase::Pushback(const void *buffer, wxUint32 size)
+{
+  if (!size) return;

 
 

-  setsockopt(fd2, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
+  if (m_unread == NULL)
+    m_unread = malloc(size);
+  else
+  {
+    void *tmp;

 
 

-  int flag = 0;
-  setsockopt(fd2, SOL_SOCKET, SO_KEEPALIVE, (char*)&flag, sizeof(int));
+    tmp = malloc(m_unrd_size + size);
+    memcpy((char *)tmp + size, m_unread, m_unrd_size);
+    free(m_unread);

 
 

-  sock.m_type = SOCK_INTERNAL;
-  sock.m_fd = fd2;
-  sock.m_connected = TRUE;
+    m_unread = tmp;
+  }

 
 

-  sock.m_internal->InitializeSocket();
+  m_unrd_size += size;

 
 

-  return TRUE;
+  memcpy(m_unread, buffer, size);

 }
 
 }
 

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

 {
 {

-  wxSocketBase* sock = new wxSocketBase();
+  if (!m_unrd_size)
+    return 0;

 
 

-  sock->SetFlags((wxSockFlags)m_flags);
+  if (size > (m_unrd_size-m_unrd_cur))
+    size = m_unrd_size-m_unrd_cur;

 
 

-  if (!AcceptWith(*sock))
-    return NULL;
+  memcpy(buffer, (char *)m_unread + m_unrd_cur, size);

 
 

-  if (m_handler)
-    m_handler->Register(sock);
+  if (!peek)
+  {
+    m_unrd_cur += size;
+    if (m_unrd_size == m_unrd_cur)
+    {
+      free(m_unread);
+      m_unread = NULL;
+      m_unrd_size = 0;
+      m_unrd_cur  = 0;
+    }
+  }

 
 

-  return sock;
+  return size;

 }
 
 }
 

-// --------------------------------------------------------------
-// wxSocketClient
-// --------------------------------------------------------------

 
 

-// --------- wxSocketClient CONSTRUCTOR -------------------------
-// --------------------------------------------------------------
-wxSocketClient::wxSocketClient(wxSockFlags _flags) :
-  wxSocketBase(_flags, SOCK_CLIENT)
-{
-}
+// ==========================================================================
+// wxSocketServer
+// ==========================================================================

 
 

-// --------------------------------------------------------------
-// --------- wxSocketClient DESTRUCTOR --------------------------
-// --------------------------------------------------------------
-wxSocketClient::~wxSocketClient()
-{
-}
+// --------------------------------------------------------------------------
+// Ctor
+// --------------------------------------------------------------------------

 
 

-// --------------------------------------------------------------
-// --------- wxSocketClient Connect functions -------------------
-// --------------------------------------------------------------
-bool wxSocketClient::Connect(wxSockAddress& addr_man, bool WXUNUSED(wait) )
+wxSocketServer::wxSocketServer(wxSockAddress& addr_man,
+                               wxSocketFlags flags)
+              : wxSocketBase(flags, wxSOCKET_SERVER)

 {
 {

-  struct linger linger;
+  // Create the socket
+  m_socket = GSocket_new();

 
 

-  if (IsConnected())
-    Close();
+  if (!m_socket)
+    return;

 
 

-  // Initializes all socket stuff ...
-  // --------------------------------
-  m_fd = socket(addr_man.GetFamily(), SOCK_STREAM, 0);
+  // Setup the socket as server
+  GSocket_SetLocal(m_socket, addr_man.GetAddress());
+  if (GSocket_SetServer(m_socket) != GSOCK_NOERROR)
+  {
+    GSocket_destroy(m_socket);
+    m_socket = NULL;
+    return;
+  }

 
 

-  if (m_fd < 0)
-    return FALSE;
+  GSocket_SetTimeout(m_socket, m_timeout * 1000);
+  GSocket_SetCallback(m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
+                                GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG,
+                                wx_socket_callback, (char *)this);

 
 

-  m_connected = FALSE;
+}

 
 

-  linger.l_onoff = 1;
-  linger.l_linger = 5;
-  setsockopt(m_fd, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
+// --------------------------------------------------------------------------
+// Accept
+// --------------------------------------------------------------------------

 
 

-  // Stay in touch with the state of things...
+bool wxSocketServer::AcceptWith(wxSocketBase& sock, bool wait)
+{
+  GSocket *child_socket;

 
 

-  unsigned long flag = 1;
-  setsockopt(m_fd, SOL_SOCKET, SO_KEEPALIVE, (char*)&flag, sizeof(int));
+  if (!m_socket)
+    return FALSE;

 
 

-  // Disable the nagle algorithm, which delays sends till the
-  // buffer is full (or a certain time period has passed?)...
+  // If wait == FALSE, then the call should be nonblocking.
+  // When we are finished, we put the socket to blocking mode
+  // again.

 
 

-#if defined(__WINDOWS__) || (defined(IPPROTO_TCP) && defined(TCP_NODELAY))
-  flag = 1;
-  setsockopt(m_fd, IPPROTO_TCP, TCP_NODELAY, (char*)&flag, sizeof(int));
-#endif
+  if (!wait)
+    GSocket_SetNonBlocking(m_socket, 1);

 
 

-  struct sockaddr *remote;
-  size_t len;
+  child_socket = GSocket_WaitConnection(m_socket);

 
 

-  addr_man.Build(remote, len);
+  if (!wait)
+    GSocket_SetNonBlocking(m_socket, 0);

 
 

-  if (connect(m_fd, remote, len) != 0)
+  if (!child_socket)

     return FALSE;
 
     return FALSE;
 

-  // Initializes the background threads ...
-  // --------------------------------------
-  m_internal->InitializeSocket();
+  sock.m_type = wxSOCKET_BASE;
+  sock.m_socket = child_socket;
+  sock.m_connected = TRUE;

 
 

-  // Enables bg events.
-  // ------------------
-  Notify(TRUE);
+  GSocket_SetTimeout(sock.m_socket, sock.m_timeout * 1000);
+  GSocket_SetCallback(sock.m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
+                                     GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG,
+                                     wx_socket_callback, (char *)&sock);

 
 

-  m_connected = TRUE;

   return TRUE;
 }
 
   return TRUE;
 }
 

-bool wxSocketClient::WaitOnConnect(long seconds, long microseconds)
+wxSocketBase *wxSocketServer::Accept(bool wait)

 {
 {

-  int ret = _Wait(seconds, microseconds, REQ_CONNECT | REQ_LOST);
+  wxSocketBase* sock = new wxSocketBase();

 
 

-  if (ret)
-    m_connected = TRUE;
+  sock->SetFlags(m_flags);
+
+  if (!AcceptWith(*sock, wait))
+  {
+    sock->Destroy();
+    sock = NULL;
+  }

 
 

-  return m_connected;
+  return sock;

 }
 
 }
 

-void wxSocketClient::OnRequest(wxRequestEvent evt)
+bool wxSocketServer::WaitForAccept(long seconds, long milliseconds)

 {
 {

-  if (evt == EVT_CONNECT) 
-  {
-    if (m_connected) 
-    {
-      SetNotify(m_neededreq & ~REQ_CONNECT);
-      return;
-    }
-    m_connected = TRUE;
-    OldOnNotify(EVT_CONNECT);
-    return;
-  }
-  wxSocketBase::OnRequest(evt);
+  return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG);

 }
 
 }
 

-/////////////////////////////////////////////////////////////////
-// wxSocketHandler ///////////////////////////////////////////////
-/////////////////////////////////////////////////////////////////
+// ==========================================================================
+// wxSocketClient
+// ==========================================================================

 
 

-wxSocketHandler *wxSocketHandler::master = NULL;
-#if defined(__WINDOWS__)
-static int win_initialized = 0;
-#endif
+// --------------------------------------------------------------------------
+// Ctor and dtor
+// --------------------------------------------------------------------------

 
 

-// --------------------------------------------------------------
-// --------- wxSocketHandler CONSTRUCTOR ------------------------
-// --------------------------------------------------------------
-wxSocketHandler::wxSocketHandler()
+wxSocketClient::wxSocketClient(wxSocketFlags flags)
+              : wxSocketBase(flags, wxSOCKET_CLIENT)

 {
 {

-#if defined(__WINDOWS__)
-  if (!win_initialized) 
-  {
-    WSADATA wsaData;
-
-    WSAStartup((1 << 8) | 1, &wsaData);
-    win_initialized = 1;
-  }
-#endif
-
-  socks = new wxList;
+}

 
 

-#ifndef __WINDOWS__
-  signal(SIGPIPE, SIG_IGN);
-#endif
+wxSocketClient::~wxSocketClient()
+{

 }
 
 }
 

-// --------------------------------------------------------------
-// --------- wxSocketHandler DESTRUCTOR -------------------------
-// --------------------------------------------------------------
-wxSocketHandler::~wxSocketHandler()
+// --------------------------------------------------------------------------
+// Connect
+// --------------------------------------------------------------------------
+
+bool wxSocketClient::Connect(wxSockAddress& addr_man, bool wait)

 {
 {

-  wxNode *next_node, *node = socks->First();
+  GSocketError err;

 
 

-  while (node) 
+  if (m_socket)

   {
   {

-    wxSocketBase* sock = (wxSocketBase*)node->Data();
-
-    delete sock;
-    next_node = node->Next();
-    delete node;
-    node = next_node;
+    // Shutdown and destroy the socket
+    Close();
+    GSocket_destroy(m_socket);

   }
 
   }
 

-  delete socks;
+  m_socket = GSocket_new();
+  m_connected = FALSE;
+  m_establishing = FALSE;

 
 

-#ifdef __WINDOWS__
-  WSACleanup();
-  win_initialized = 0;
-#endif
-}
+  if (!m_socket)
+    return FALSE;

 
 

-// --------------------------------------------------------------
-// --------- wxSocketHandler registering functions --------------
-// --------------------------------------------------------------
+  GSocket_SetTimeout(m_socket, m_timeout * 1000);
+  GSocket_SetCallback(m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
+                                GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG,
+                                wx_socket_callback, (char *)this);

 
 

-void wxSocketHandler::Register(wxSocketBase* sock)
-{
-  wxNode *node;
+  // If wait == FALSE, then the call should be nonblocking.
+  // When we are finished, we put the socket to blocking mode
+  // again.

 
 

-  for (node = socks->First(); node != NULL; node = node->Next()) 
-  {
-    wxSocketBase* s = (wxSocketBase*)node->Data();
-
-    if (s == sock)
-      return;
-  }
+  if (!wait)
+    GSocket_SetNonBlocking(m_socket, 1);

 
 

-  if (sock) 
-  {
-    socks->Append(sock);
-    sock->SetHandler(this);
-  }
-}
+  GSocket_SetPeer(m_socket, addr_man.GetAddress());
+  err = GSocket_Connect(m_socket, GSOCK_STREAMED);

 
 

-void wxSocketHandler::UnRegister(wxSocketBase* sock)
-{
-  wxNode *node;
+  if (!wait)
+    GSocket_SetNonBlocking(m_socket, 0);

 
 

-  for (node = socks->First(); node; node = node->Next()) 
+  if (err != GSOCK_NOERROR)

   {
   {

-    wxSocketBase* s = (wxSocketBase*)node->Data();
+    if (err == GSOCK_WOULDBLOCK)
+      m_establishing = TRUE;

 
 

-    if (s == sock) 
-    {
-      delete node;
-      sock->SetHandler(NULL);
-      return;
-    }
+    return FALSE;

   }
   }

-}

 
 

-unsigned long wxSocketHandler::Count() const
-{
-  return socks->Number();
+  m_connected = TRUE;
+  return TRUE;

 }
 
 }
 

-// --------------------------------------------------------------
-// --------- wxSocketHandler "big" wait functions ---------------
-// --------------------------------------------------------------
-
-int wxSocketHandler::Wait(long seconds, long microseconds)
+bool wxSocketClient::WaitOnConnect(long seconds, long milliseconds)

 {
 {

-  // TODO Needs the completely asynchronous notifier.
+  if (m_connected)                      // Already connected
+    return TRUE;

 
 

-  /*
-  int i;
-  int on_wait;
-  wxNode *node;
-  for (node = socks->First(), i=0; node; node = node->Next(), i++) 
-  {
-    wxSocketBase *sock = (wxSocketBase *)node->Data();
+  if (!m_establishing || !m_socket)     // No connection in progress
+    return FALSE;

 
 

-    sock->SaveState();
+  return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG |
+                                      GSOCK_LOST_FLAG);
+}

 
 

-    sock->SetupCallbacks();
+// ==========================================================================
+// wxDatagramSocket
+// ==========================================================================

 
 

-    sock->Callback(handler_cbk);
-    sock->CallbackData((char *)&on_wait);
-  }
-  on_wait = 0;
-  if (seconds != -1)
-    s_wake.Start((seconds*1000) + (microseconds/1000), TRUE);
+/* NOTE: experimental stuff - might change */

 
 

-  while (!on_wait)
-    PROCESS_EVENTS();
+wxDatagramSocket::wxDatagramSocket( wxSockAddress& addr,
+                                    wxSocketFlags flags )
+                : wxSocketBase( flags, wxSOCKET_DATAGRAM )
+{
+  // Create the socket
+  m_socket = GSocket_new();

 
 

-  for (node = socks->First(), i=0; node; node = node->Next(), i++) 
-  {
-    wxSocketBase *sock = (wxSocketBase *)node->Data();
+  if(!m_socket)
+    return;

 
 

-    sock->RestoreState();
+  // Setup the socket as non connection oriented
+  GSocket_SetLocal(m_socket, addr.GetAddress());
+  if( GSocket_SetNonOriented(m_socket) != GSOCK_NOERROR )
+  {
+    GSocket_destroy(m_socket);
+    m_socket = NULL;
+    return;

   }
 
   }
 

-  if (on_wait == -2)
-    return 0;
+  // Initialize all stuff
+  m_connected = FALSE;
+  m_establishing = FALSE;
+  GSocket_SetTimeout( m_socket, m_timeout );
+  GSocket_SetCallback( m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG |
+                                 GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG,
+                                 wx_socket_callback, (char*)this );

 
 

-  return on_wait;
-  */
-  return 0;

 }
 
 }
 

-void wxSocketHandler::YieldSock()
+wxDatagramSocket& wxDatagramSocket::RecvFrom( wxSockAddress& addr,
+                                              void* buf,
+                                              wxUint32 nBytes )

 {
 {

-  wxNode *node;
-
-  // Nothing to do anymore here except waiting for the queue emptying.
-  for (node = socks->First(); node; node=node->Next()) {
-    wxSocketBase *sock = (wxSocketBase *)node->Data();
-
-    sock->m_internal->WaitForEnd(NULL);
-  }
+    Read(buf, nBytes);
+    GetPeer(addr);
+    return (*this);

 }
 
 }
 

-// --------------------------------------------------------------
-// --------- wxSocketHandler: create and register the socket ----
-// --------------------------------------------------------------
-wxSocketServer *wxSocketHandler::CreateServer(wxSockAddress& addr,
-                wxSocketBase::wxSockFlags flags)
+wxDatagramSocket& wxDatagramSocket::SendTo( wxSockAddress& addr,
+                                            const void* buf,
+                                            wxUint32 nBytes )

 {
 {

-  wxSocketServer *serv = new wxSocketServer(addr, flags);
-
-  Register(serv);
-  return serv;
+    GSocket_SetPeer(m_socket, addr.GetAddress());
+    Write(buf, nBytes);
+    return (*this);

 }
 
 }
 

-wxSocketClient *wxSocketHandler::CreateClient(wxSocketBase::wxSockFlags flags)
-{
-  wxSocketClient *client = new wxSocketClient(flags);
-
-  Register(client);
-  return client;
-}
+// ==========================================================================
+// wxSocketModule
+// ==========================================================================

 
 

-bool wxSocketModule::OnInit() 
+class WXDLLEXPORT wxSocketModule : public wxModule

 {
 {

-  wxSocketHandler::master = new wxSocketHandler();
-  return TRUE;
-}
+public:
+    virtual bool OnInit()
+    {
+        // wxSocketBase will call GSocket_Init() itself when/if needed
+        return TRUE;
+    }

 
 

-void wxSocketModule::OnExit() 
-{
-  delete wxSocketHandler::master;
-  wxSocketHandler::master = NULL;
-}
+    virtual void OnExit()
+    {
+        if ( wxSocketBase::IsInitialized() )
+            wxSocketBase::Shutdown();
+    }

 
 

-#endif
-  // __WXSTUBS__
+private:
+    DECLARE_DYNAMIC_CLASS(wxSocketModule)
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxSocketModule, wxModule)

 
 #endif
   // wxUSE_SOCKETS
 
 #endif
   // wxUSE_SOCKETS