move enabled callbacks flag down to wxSocketImplUnix from wxSocketImplFDIO, this allows to get rid of the letter

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@56999 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/unix/private/sockunix.h

@@ -27,6 +27,7 @@ public:
         m_fds[1] = -1;
 
         m_use_events = false;
+        m_enabledCallbacks = 0;
     }
 
     virtual void Shutdown();
@@ -42,6 +43,14 @@ public:
     virtual void OnWriteWaiting();
     virtual void OnExceptionWaiting();
 
+    // Unix-specific functions
+    bool HasAnyEnabledCallbacks() const { return m_enabledCallbacks != 0; }
+    void EnableCallback(wxFDIODispatcherEntryFlags flag)
+        { m_enabledCallbacks |= flag; }
+    void DisableCallback(wxFDIODispatcherEntryFlags flag)
+        { m_enabledCallbacks &= ~flag; }
+    int GetEnabledCallbacks() const { return m_enabledCallbacks; }
+
 private:
     virtual wxSocketError DoHandleConnect(int ret);
     virtual void DoClose()
@@ -99,6 +108,7 @@ private:
     int Send_Stream(const char *buffer, int size);
     int Send_Dgram(const char *buffer, int size);
 
+
 protected:
     // true if socket should fire events
     bool m_use_events;
@@ -107,6 +117,13 @@ protected:
     // with the socket
     int m_fds[2];
 
+    // the events which are currently enabled for this socket, combination of
+    // wxFDIO_INPUT and wxFDIO_OUTPUT values
+    //
+    // TODO: this overlaps with m_detected but the semantics of the latter are
+    //       very unclear so I don't dare to remove it right now
+    int m_enabledCallbacks;
+
 private:
     // notify the associated wxSocket about a change in socket state and shut
     // down the socket if the event is wxSOCKET_LOST