don't crash if we can't detect g_wcCharset

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

diff --git a/src/common/socket.cpp b/src/common/socket.cpp
index b2947da8e81de3cf518d23d2cdeb97f27cfef71a..9df24e42c9453decd31c6c67e986efef935c3a57 100644 (file)
--- a/src/common/socket.cpp
+++ b/src/common/socket.cpp
@@ -51,12 +51,30 @@
 // discard buffer
 #define MAX_DISCARD_SIZE (10 * 1024)
 
-// what to do within waits
+// 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
-  #define PROCESS_EVENTS() wxYield()
-#else
-  #define PROCESS_EVENTS()
-#endif
+    #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
@@ -463,7 +481,7 @@ wxUint32 wxSocketBase::_Write(const void *buffer, wxUint32 nbytes)
   {
     bool more = TRUE;
 
-    while (more)            
+    while (more)
     {
       if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForWrite() )
         break;
@@ -844,9 +862,10 @@ char *wxSocketBase::CallbackData(char *data)
 // 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),
-                                           GSocketEvent notification,
-                                           char *cdata)
+extern "C"
+void LINKAGEMODE wx_socket_callback(GSocket * WXUNUSED(socket),
+                                    GSocketEvent notification,
+                                    char *cdata)
 {
   wxSocketBase *sckobj = (wxSocketBase *)cdata;
 
@@ -992,7 +1011,7 @@ wxUint32 wxSocketBase::GetPushback(void *buffer, wxUint32 size, bool peek)
 
 
 // ==========================================================================
-// wxSocketServer                             
+// wxSocketServer
 // ==========================================================================
 
 // --------------------------------------------------------------------------
@@ -1070,7 +1089,10 @@ wxSocketBase *wxSocketServer::Accept(bool wait)
   sock->SetFlags(m_flags);
 
   if (!AcceptWith(*sock, wait))
-    return NULL;
+  {
+    sock->Destroy();
+    sock = NULL;
+  }
 
   return sock;
 }
@@ -1214,25 +1236,6 @@ wxDatagramSocket& wxDatagramSocket::SendTo( wxSockAddress& addr,
     return (*this);
 }
 
-// ==========================================================================
-// wxSocketEvent
-// ==========================================================================
-
-wxSocketEvent::wxSocketEvent(int id) : wxEvent(id)
-{
-  SetEventType( (wxEventType)wxEVT_SOCKET );
-}
-
-void wxSocketEvent::CopyObject(wxObject& object_dest) const
-{
-  wxSocketEvent *event = (wxSocketEvent *)&object_dest;
-
-  wxEvent::CopyObject(object_dest);
-
-  event->m_event      = m_event;
-  event->m_clientData = m_clientData;
-}
-
 // ==========================================================================
 // wxSocketModule
 // ==========================================================================