some != NULL checks

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

diff --git a/src/common/socket.cpp b/src/common/socket.cpp
index 1eefad523fccf672368d4d7aacb0f338301edc4a..89ac01b97d58cfafbfeec60345a28a0c99de206e 100644 (file)
--- a/src/common/socket.cpp
+++ b/src/common/socket.cpp
@@ -9,6 +9,10 @@
 // License:    see wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 
 // License:    see wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 

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

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


@@ -22,10 +26,6 @@
 
 #if wxUSE_SOCKETS
 
 
 #if wxUSE_SOCKETS
 

-// ==========================================================================
-// Headers and constants
-// ==========================================================================
-

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


@@ -35,26 +35,31 @@
 #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"

 
 #if wxUSE_GUI
 
 #if wxUSE_GUI

-    #include "wx/gdicmn.h"      // for wxPendingDelete
+  #include "wx/gdicmn.h"      // for wxPendingDelete

 #endif // wxUSE_GUI
 
 #include "wx/sckaddr.h"
 #include "wx/socket.h"
 
 #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
 
 // discard buffer
 #define MAX_DISCARD_SIZE (10 * 1024)
 
 // what to do within waits

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

 
 // --------------------------------------------------------------------------
 
 // --------------------------------------------------------------------------

-// ClassInfos
+// wxWin macros

 // --------------------------------------------------------------------------
 
 IMPLEMENT_CLASS(wxSocketBase, wxObject)
 // --------------------------------------------------------------------------
 
 IMPLEMENT_CLASS(wxSocketBase, wxObject)


@@ -63,20 +68,26 @@ 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;
-  wxSocketEventFlags       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
 // ==========================================================================
 // ==========================================================================
 // wxSocketBase
 // ==========================================================================


@@ -85,32 +96,50 @@ public:
 // Ctor and dtor
 // --------------------------------------------------------------------------
 
 // 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_beingDeleted(FALSE),
-  m_unread(NULL), m_unrd_size(0), m_unrd_cur(0),
-  m_cbk(NULL), m_cdata(NULL)
+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() :
-  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_beingDeleted(FALSE),
-  m_unread(NULL), m_unrd_size(0), m_unrd_cur(0),
-  m_cbk(NULL), m_cdata(NULL)
+wxSocketBase::wxSocketBase()

 {
 {

+  Init();
+}
+
+wxSocketBase::wxSocketBase(wxSocketFlags flags, wxSocketType type)
+{
+  Init();
+
+  m_flags = flags;
+  m_type  = type;

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


@@ -144,9 +173,12 @@ bool wxSocketBase::Destroy()
   // Shutdown and close the socket
   Close();
 
   // Shutdown and close the socket
   Close();
 

+  // Supress events from now on
+  Notify(FALSE);
+

 #if wxUSE_GUI
 #if wxUSE_GUI

-  if ( wxPendingDelete.Member(this) )
-      wxPendingDelete.Append(this);
+  if ( !wxPendingDelete.Member(this) )
+    wxPendingDelete.Append(this);

 #else
   delete this;
 #endif
 #else
   delete this;
 #endif


@@ -154,9 +186,8 @@ bool wxSocketBase::Destroy()
   return TRUE;
 }
 
   return TRUE;
 }
 

-

 // --------------------------------------------------------------------------
 // --------------------------------------------------------------------------

-// Basic IO operations
+// Basic IO calls

 // --------------------------------------------------------------------------
 
 // The following IO operations update m_error and m_lcount:
 // --------------------------------------------------------------------------
 
 // The following IO operations update m_error and m_lcount:


@@ -167,7 +198,7 @@ bool wxSocketBase::Destroy()
 bool wxSocketBase::Close()
 {
   // Interrupt pending waits
 bool wxSocketBase::Close()
 {
   // Interrupt pending waits

-  InterruptAllWaits();
+  InterruptWait();

 
   if (m_socket)
   {
 
   if (m_socket)
   {


@@ -184,7 +215,7 @@ bool wxSocketBase::Close()
   return TRUE;
 }
 
   return TRUE;
 }
 

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

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


@@ -203,7 +234,7 @@ 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;


@@ -211,7 +242,7 @@ wxUint32 wxSocketBase::_Read(char* buffer, wxUint32 nbytes)
   // Try the pushback buffer first
   total = GetPushback(buffer, nbytes, FALSE);
   nbytes -= total;
   // Try the pushback buffer first
   total = GetPushback(buffer, nbytes, FALSE);
   nbytes -= total;

-  buffer += total;
+  buffer  = (char *)buffer + total;

 
   // If the socket is invalid or we got all the data, return now
   if (!m_socket || !nbytes)
 
   // If the socket is invalid or we got all the data, return now
   if (!m_socket || !nbytes)


@@ -227,7 +258,7 @@ wxUint32 wxSocketBase::_Read(char* buffer, wxUint32 nbytes)
   if (m_flags & wxSOCKET_NOWAIT)
   {
     GSocket_SetNonBlocking(m_socket, TRUE);
   if (m_flags & wxSOCKET_NOWAIT)
   {
     GSocket_SetNonBlocking(m_socket, TRUE);

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

     GSocket_SetNonBlocking(m_socket, FALSE);
 
     if (ret > 0)
     GSocket_SetNonBlocking(m_socket, FALSE);
 
     if (ret > 0)


@@ -240,13 +271,13 @@ wxUint32 wxSocketBase::_Read(char* buffer, wxUint32 nbytes)
       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;

       }
     }
   }
       }
     }
   }


@@ -254,7 +285,7 @@ wxUint32 wxSocketBase::_Read(char* buffer, wxUint32 nbytes)
   {
     if ((m_flags & wxSOCKET_BLOCK) || WaitForRead())
     {
   {
     if ((m_flags & wxSOCKET_BLOCK) || WaitForRead())
     {

-      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;


@@ -264,7 +295,7 @@ wxUint32 wxSocketBase::_Read(char* buffer, wxUint32 nbytes)
   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;


@@ -283,10 +314,10 @@ 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;
 
     goto exit;
 

-  sig =  (wxUint32)msg.sig[0];
+  sig = (wxUint32)msg.sig[0];

   sig |= (wxUint32)(msg.sig[1] << 8);
   sig |= (wxUint32)(msg.sig[2] << 16);
   sig |= (wxUint32)(msg.sig[3] << 24);
   sig |= (wxUint32)(msg.sig[1] << 8);
   sig |= (wxUint32)(msg.sig[2] << 16);
   sig |= (wxUint32)(msg.sig[3] << 24);


@@ -337,7 +368,7 @@ 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];


@@ -363,7 +394,7 @@ 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;


@@ -383,7 +414,7 @@ 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;


@@ -402,7 +433,7 @@ 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;


@@ -421,7 +452,7 @@ wxUint32 wxSocketBase::_Write(const char *buffer, wxUint32 nbytes)
   if (m_flags & wxSOCKET_NOWAIT)
   {
     GSocket_SetNonBlocking(m_socket, TRUE);
   if (m_flags & wxSOCKET_NOWAIT)
   {
     GSocket_SetNonBlocking(m_socket, TRUE);

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

     GSocket_SetNonBlocking(m_socket, FALSE);
 
     if (ret > 0)
     GSocket_SetNonBlocking(m_socket, FALSE);
 
     if (ret > 0)


@@ -434,13 +465,13 @@ wxUint32 wxSocketBase::_Write(const char *buffer, wxUint32 nbytes)
       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;

       }
     }
   }
       }
     }
   }


@@ -448,7 +479,7 @@ wxUint32 wxSocketBase::_Write(const char *buffer, wxUint32 nbytes)
   {
     if ((m_flags & wxSOCKET_BLOCK) || WaitForWrite())
     {
   {
     if ((m_flags & wxSOCKET_BLOCK) || WaitForWrite())
     {

-      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;


@@ -458,12 +489,13 @@ wxUint32 wxSocketBase::_Write(const char *buffer, wxUint32 nbytes)
   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;


@@ -486,7 +518,7 @@ wxSocketBase& wxSocketBase::WriteMsg(const char *buffer, wxUint32 nbytes)
   msg.len[2] = (unsigned char) ((nbytes >> 16) & 0xff);
   msg.len[3] = (unsigned char) ((nbytes >> 24) & 0xff);
 
   msg.len[2] = (unsigned char) ((nbytes >> 16) & 0xff);
   msg.len[3] = (unsigned char) ((nbytes >> 24) & 0xff);
 

-  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);


@@ -500,7 +532,7 @@ 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


@@ -514,7 +546,7 @@ exit:
   return *this;
 }
 
   return *this;
 }
 

-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);


@@ -565,33 +597,12 @@ wxSocketBase& wxSocketBase::Discard()
 // timeout elapses. The polling loop calls PROCESS_EVENTS(), so
 // this won't block the GUI.
 
 // timeout elapses. The polling loop calls PROCESS_EVENTS(), so
 // this won't block the GUI.
 

-#if wxUSE_GUI
-
-class _wxSocketInternalTimer: public wxTimer
-{
-public:
-  int *m_state;
-  unsigned long m_new_val;
-
-  void Notify()
-  {
-    *m_state = (int)m_new_val;      // Change the value
-  }
-};
-
-#endif // wxUSE_GUI
-
-bool wxSocketBase::_Wait(long seconds, long milliseconds,
+bool wxSocketBase::_Wait(long seconds,
+                         long milliseconds,

                          wxSocketEventFlags flags)
 {
   GSocketEventFlags result;
                          wxSocketEventFlags flags)
 {
   GSocketEventFlags result;

-#if wxUSE_GUI
-  _wxSocketInternalTimer timer;
-  wxTimerRunner runTimer(timer);
-#endif // wxUSE_GUI
-

   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;


@@ -600,35 +611,26 @@ bool wxSocketBase::_Wait(long seconds, long milliseconds,
   if (!m_socket)
     return FALSE;
 
   if (!m_socket)
     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)
-  {
-#if wxUSE_GUI
-    timer.m_state = &state;
-    timer.m_new_val = 0;
-    runTimer.Start((int)timeout, TRUE);
-#endif // wxUSE_GUI
-  }
-
-  // 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 Wait 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
   // we are just polling). Also, if just polling, do not yield.
 
   //
   // Do this at least once (important if timeout == 0, when
   // we are just polling). Also, if just polling, do not yield.
 

-  while (state == -1)
+  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);
 


@@ -651,12 +653,12 @@ bool wxSocketBase::_Wait(long seconds, long milliseconds,
     {
       m_connected = FALSE;
       m_establishing = FALSE;
     {
       m_connected = FALSE;
       m_establishing = FALSE;

-      return (flags & GSOCK_LOST_FLAG);
+      return (flags & GSOCK_LOST_FLAG) != 0;

     }
 
     // Wait more?
     }
 
     // Wait more?

-    if ((timeout == 0) || (m_interrupt))
-      break;
+    if ((!timeout) || (chrono.Time() > timeout) || (m_interrupt))
+      done = TRUE;

     else
       PROCESS_EVENTS();
   }
     else
       PROCESS_EVENTS();
   }


@@ -743,11 +745,14 @@ void wxSocketBase::SaveState()
 
   state = new wxSocketState();
 
 
   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;
+  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);
 }
 
   m_states.Append(state);
 }


@@ -763,11 +768,14 @@ void wxSocketBase::RestoreState()
 
   state = (wxSocketState *)node->Data();
 
 
   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);
+  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;
 
   delete node;
   delete state;


@@ -785,15 +793,18 @@ void wxSocketBase::SetTimeout(long seconds)
     GSocket_SetTimeout(m_socket, m_timeout * 1000);
 }
 
     GSocket_SetTimeout(m_socket, m_timeout * 1000);
 }
 

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

 {
 {

-  m_flags = _flags;
+  m_flags = flags;

 }
 
 }
 

+

 // --------------------------------------------------------------------------
 // Callbacks (now obsolete - use events instead)
 // --------------------------------------------------------------------------
 
 // --------------------------------------------------------------------------
 // Callbacks (now obsolete - use events instead)
 // --------------------------------------------------------------------------
 

+#if WXWIN_COMPATIBILITY
+

 wxSocketBase::wxSockCbk wxSocketBase::Callback(wxSockCbk cbk_)
 {
   wxSockCbk old_cbk = cbk_;
 wxSocketBase::wxSockCbk wxSocketBase::Callback(wxSockCbk cbk_)
 {
   wxSockCbk old_cbk = cbk_;


@@ -810,56 +821,47 @@ char *wxSocketBase::CallbackData(char *data)
   return old_data;
 }
 
   return old_data;
 }
 

+#endif // WXWIN_COMPATIBILITY
+

 // --------------------------------------------------------------------------
 // --------------------------------------------------------------------------

-// Event system
+// 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,
+                                           GSocketEvent notification,

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

-  sckobj->OnRequest((wxSocketNotify)event);
-}
-
-wxSocketEventFlags wxSocketBase::EventToNotify(wxSocketNotify evt)
-{
-  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;
-}
-
-void wxSocketBase::SetNotify(wxSocketEventFlags flags)
-{
-  m_neededreq = flags;
-}
-
-void wxSocketBase::Notify(bool notify)
-{
-  m_notify_state = notify;
+  sckobj->OnRequest((wxSocketNotify) notification);

 }
 
 }
 

-void wxSocketBase::OnRequest(wxSocketNotify req_evt)
+void wxSocketBase::OnRequest(wxSocketNotify notification)

 {
 {

-  wxSocketEvent event(m_id);
-  wxSocketEventFlags flag = EventToNotify(req_evt);
-
-  // This duplicates some code in _Wait, but this doesn't
-  // hurt. It has to be here because we don't know whether
-  // the Wait functions will be used, and it has to be in
-  // _Wait as well because the event might be a bit delayed.
+  // 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.

 
 

-  switch(req_evt)
+  switch(notification)

   {
     case wxSOCKET_CONNECTION:
       m_establishing = FALSE;
   {
     case wxSOCKET_CONNECTION:
       m_establishing = FALSE;


@@ -889,54 +891,68 @@ void wxSocketBase::OnRequest(wxSocketNotify req_evt)
       break;
   }
 
       break;
   }
 

-  if (((m_neededreq & flag) == flag) && m_notify_state)
+  // Schedule the event
+
+  wxSocketEventFlags flag = -1;
+  switch (notification)

   {
   {

-    event.m_socket = this;
-    event.m_skevt  = req_evt;
+    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;
+  }

 
 

-    if (m_evt_handler)
+  if (((m_eventmask & flag) == flag) && m_notify)
+  {
+    if (m_handler)

     {
     {

-#if USE_DELAYED_EVENTS
-      wxPostEvent(m_evt_handler, event);
-#else
-      ProcessEvent(event);
-#endif
+      wxSocketEvent event(m_id);
+      event.m_event      = notification;
+      event.m_clientData = m_clientData;
+      event.SetEventObject(this);
+
+      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

   }
 }
 
   }
 }
 

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

 {
 {

+  m_notify = notify;

 }
 
 }
 

-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;

 }
 
 // --------------------------------------------------------------------------
 // Pushback buffer
 // --------------------------------------------------------------------------
 
 }
 
 // --------------------------------------------------------------------------
 // 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;


@@ -947,7 +963,7 @@ 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;


@@ -955,7 +971,7 @@ 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)
   {


@@ -972,8 +988,9 @@ wxUint32 wxSocketBase::GetPushback(char *buffer, wxUint32 size, bool peek)
   return size;
 }
 
   return size;
 }
 

+

 // ==========================================================================
 // ==========================================================================

-// wxSocketServer
+// wxSocketServer                             

 // ==========================================================================
 
 // --------------------------------------------------------------------------
 // ==========================================================================
 
 // --------------------------------------------------------------------------


@@ -981,8 +998,8 @@ wxUint32 wxSocketBase::GetPushback(char *buffer, wxUint32 size, bool peek)
 // --------------------------------------------------------------------------
 
 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();


@@ -1032,7 +1049,7 @@ bool wxSocketServer::AcceptWith(wxSocketBase& sock, bool wait)
   if (!child_socket)
     return FALSE;
 
   if (!child_socket)
     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;
 


@@ -1048,7 +1065,7 @@ 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;


@@ -1069,12 +1086,11 @@ bool wxSocketServer::WaitForAccept(long seconds, long milliseconds)
 // Ctor and dtor
 // --------------------------------------------------------------------------
 
 // Ctor and dtor
 // --------------------------------------------------------------------------
 

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

 {
 }
 
 {
 }
 

-// XXX: What is this for ?

 wxSocketClient::~wxSocketClient()
 {
 }
 wxSocketClient::~wxSocketClient()
 {
 }


@@ -1139,7 +1155,8 @@ 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);

 }
 
 // ==========================================================================
 }
 
 // ==========================================================================


@@ -1148,8 +1165,9 @@ bool wxSocketClient::WaitOnConnect(long seconds, long milliseconds)
 
 /* 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();


@@ -1177,7 +1195,7 @@ 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);


@@ -1186,7 +1204,7 @@ 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());


@@ -1198,31 +1216,26 @@ wxDatagramSocket& wxDatagramSocket::SendTo( wxSockAddress& addr,
 // wxSocketEvent
 // ==========================================================================
 
 // wxSocketEvent
 // ==========================================================================
 

-// XXX: Should be moved to event.cpp ?
-
-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)