Don't pop explicitly changed status messages.

[wxWidgets.git] / src / unix / evtloopunix.cpp

diff --git a/src/unix/evtloopunix.cpp b/src/unix/evtloopunix.cpp
index b439c4d4664b4f871973739e7187fdd2bf5d0699..a44933e593ccc965662d5c0ed45b835368119993 100644 (file)
--- a/src/unix/evtloopunix.cpp
+++ b/src/unix/evtloopunix.cpp
@@ -21,6 +21,8 @@
 
 #if wxUSE_CONSOLE_EVENTLOOP
 
+#include "wx/evtloop.h"
+
 #ifndef WX_PRECOMP
     #include "wx/app.h"
     #include "wx/log.h"
@@ -28,24 +30,52 @@
 
 #include <errno.h>
 #include "wx/apptrait.h"
-#include "wx/evtloop.h"
 #include "wx/thread.h"
 #include "wx/module.h"
+#include "wx/unix/pipe.h"
 #include "wx/unix/private/timer.h"
 #include "wx/unix/private/epolldispatcher.h"
 #include "wx/private/selectdispatcher.h"
 
-#define TRACE_EVENTS _T("events")
+#define TRACE_EVENTS wxT("events")
 
 // ===========================================================================
 // wxEventLoop::PipeIOHandler implementation
 // ===========================================================================
 
+namespace wxPrivate
+{
+
+// pipe used for wake up messages: when a child thread wants to wake up
+// the event loop in the main thread it writes to this pipe
+class PipeIOHandler : public wxFDIOHandler
+{
+public:
+    // default ctor does nothing, call Create() to really initialize the
+    // object
+    PipeIOHandler() { }
+
+    bool Create();
+
+    // this method can be, and normally is, called from another thread
+    void WakeUp();
+
+    int GetReadFd() { return m_pipe[wxPipe::Read]; }
+
+    // implement wxFDIOHandler pure virtual methods
+    virtual void OnReadWaiting();
+    virtual void OnWriteWaiting() { }
+    virtual void OnExceptionWaiting() { }
+
+private:
+    wxPipe m_pipe;
+};
+
 // ----------------------------------------------------------------------------
 // initialization
 // ----------------------------------------------------------------------------
 
-bool wxConsoleEventLoop::PipeIOHandler::Create()
+bool PipeIOHandler::Create()
 {
     if ( !m_pipe.Create() )
     {
@@ -72,7 +102,7 @@ bool wxConsoleEventLoop::PipeIOHandler::Create()
 // wakeup handling
 // ----------------------------------------------------------------------------
 
-void wxConsoleEventLoop::PipeIOHandler::WakeUp()
+void PipeIOHandler::WakeUp()
 {
     if ( write(m_pipe[wxPipe::Write], "s", 1) != 1 )
     {
@@ -82,7 +112,7 @@ void wxConsoleEventLoop::PipeIOHandler::WakeUp()
     }
 }
 
-void wxConsoleEventLoop::PipeIOHandler::OnReadWaiting()
+void PipeIOHandler::OnReadWaiting()
 {
     // got wakeup from child thread: read all data available in pipe just to
     // make it empty (even though we write one byte at a time from WakeUp(),
@@ -112,6 +142,8 @@ void wxConsoleEventLoop::PipeIOHandler::OnReadWaiting()
     // else needs to be done
 }
 
+} // namespace wxPrivate
+
 // ===========================================================================
 // wxEventLoop implementation
 // ===========================================================================
@@ -122,8 +154,10 @@ void wxConsoleEventLoop::PipeIOHandler::OnReadWaiting()
 
 wxConsoleEventLoop::wxConsoleEventLoop()
 {
-    if ( !m_wakeupPipe.Create() )
+    m_wakeupPipe = new wxPrivate::PipeIOHandler();
+    if ( !m_wakeupPipe->Create() )
     {
+        wxDELETE(m_wakeupPipe);
         m_dispatcher = NULL;
         return;
     }
@@ -134,12 +168,17 @@ wxConsoleEventLoop::wxConsoleEventLoop()
 
     m_dispatcher->RegisterFD
                   (
-                    m_wakeupPipe.GetReadFd(),
-                    &m_wakeupPipe,
+                    m_wakeupPipe->GetReadFd(),
+                    m_wakeupPipe,
                     wxFDIO_INPUT
                   );
 }
 
+wxConsoleEventLoop::~wxConsoleEventLoop()
+{
+    delete m_wakeupPipe;
+}
+
 //-----------------------------------------------------------------------------
 // events dispatch and loop handling
 //-----------------------------------------------------------------------------
@@ -161,7 +200,8 @@ bool wxConsoleEventLoop::Pending() const
 
 bool wxConsoleEventLoop::Dispatch()
 {
-    DispatchTimeout(wxFDIODispatcher::TIMEOUT_INFINITE);
+    DispatchTimeout(static_cast<unsigned long>(
+        wxFDIODispatcher::TIMEOUT_INFINITE));
 
     return true;
 }
@@ -191,7 +231,7 @@ int wxConsoleEventLoop::DispatchTimeout(unsigned long timeout)
 
 void wxConsoleEventLoop::WakeUp()
 {
-    m_wakeupPipe.WakeUp();
+    m_wakeupPipe->WakeUp();
 }
 
 void wxConsoleEventLoop::OnNextIteration()