wxgui: improve single-threaded plugin enumerator for Linux (still a bit buggy)

git-svn-id: http://pcsx2.googlecode.com/svn/branches/wxgui@1743 96395faa-99c1-11dd-bbfe-3dabce05a288

common/src/Utilities/ThreadTools.cpp

@@ -50,6 +50,8 @@ namespace Threading
 	// your sister, and then cheating on her with your daughter.
 	PersistentThread::~PersistentThread()
 	{
+		if( !m_running ) return;
+
 		wxASSERT( !IsSelf() );		// not allowed from our own thread.
 
 		if( !_InterlockedExchange( &m_detached, true ) )
@@ -62,9 +64,7 @@ namespace Threading
 	// This function should not be called from the owner thread.
 	void PersistentThread::Start()
 	{
-		wxASSERT( !IsSelf() );		// not allowed from our own thread.
 		if( m_running ) return;
-
 		if( pthread_create( &m_thread, NULL, _internal_callback, this ) != 0 )
 			throw Exception::ThreadCreationError();
 
@@ -74,8 +74,10 @@ namespace Threading
 	// This function should not be called from the owner thread.
 	void PersistentThread::Detach()
 	{
-		wxASSERT( !IsSelf() );		// not allowed from our own thread.
+		if( !m_running ) return;
 		if( _InterlockedExchange( &m_detached, true ) ) return;
+
+		wxASSERT( !IsSelf() );		// not allowed from our own thread.
 		pthread_detach( m_thread );
 	}
 
@@ -92,7 +94,6 @@ namespace Threading
 	//
 	void PersistentThread::Cancel( bool isBlocking )
 	{
-		wxASSERT( !IsSelf() );
 		if( _InterlockedExchange( &m_detached, true ) )
 		{
 			if( m_running )
@@ -100,6 +101,7 @@ namespace Threading
 			return;
 		}
 
+		wxASSERT( !IsSelf() );
 		pthread_cancel( m_thread );
 
 		if( isBlocking )
@@ -120,8 +122,6 @@ namespace Threading
 	//
 	sptr PersistentThread::Block()
 	{
-		DevAssert( !IsSelf(), "Thread deadlock detected; Block() should never be called by the owner thread." );
-		
 		if( _InterlockedExchange( &m_detached, true ) )
 		{
 			// already detached: if we're still running then its an invalid operation
@@ -132,6 +132,7 @@ namespace Threading
 		}
 		else
 		{
+			DevAssert( !IsSelf(), "Thread deadlock detected; Block() should never be called by the owner thread." );
 			pthread_join( m_thread, (void**)&m_returncode );
 			return m_returncode;
 		}

pcsx2/Linux/pcsx2.cbp

@@ -134,8 +134,6 @@
 		<Unit filename="../CDVD/IsoFileFormats.h" />
 		<Unit filename="../CDVD/IsoFileTools.cpp" />
 		<Unit filename="../CDVD/IsoFileTools.h" />
-		<Unit filename="../CDVD/IsoFileTools.h.save" />
-		<Unit filename="../CDVD/Makefile.am" />
 		<Unit filename="../COP0.cpp" />
 		<Unit filename="../COP2.cpp" />
 		<Unit filename="../Cache.cpp" />
@@ -155,11 +153,7 @@
 		<Unit filename="../DebugTools/DisVUops.h" />
 		<Unit filename="../Docs/ChangeLog.txt" />
 		<Unit filename="../Docs/License.txt" />
-		<Unit filename="../Docs/PS2Edefs.txt" />
-		<Unit filename="../Docs/RemoteDebugging.txt" />
 		<Unit filename="../Docs/devblog.txt" />
-		<Unit filename="../Docs/readme 0.9.4.txt" />
-		<Unit filename="../Docs/readme Playground.txt" />
 		<Unit filename="../Dump.cpp" />
 		<Unit filename="../Dump.h" />
 		<Unit filename="../Elfheader.cpp" />

pcsx2/gui/Dialogs/PickUserModeDialog.cpp

@@ -22,12 +22,12 @@
 #include <wx/stdpaths.h>
 
 using namespace wxHelpers;
-
+using namespace Panels;
 
 Dialogs::PickUserModeDialog::PickUserModeDialog( wxWindow* parent, int id ) :
 	wxDialogWithHelpers( parent, id, _("PCSX2 First Time configuration"), false )
-,	m_panel_usersel( new Panels::UsermodeSelectionPanel( *this, 620, false ) )
-,	m_panel_langsel( new Panels::LanguageSelectionPanel( *this, 620 ) )
+,	m_panel_usersel( new UsermodeSelectionPanel( *this, 620, false ) )
+,	m_panel_langsel( new LanguageSelectionPanel( *this, 620 ) )
 {
 	wxBoxSizer& s_main = *new wxBoxSizer( wxVERTICAL );
 
@@ -46,7 +46,7 @@ Dialogs::PickUserModeDialog::PickUserModeDialog( wxWindow* parent, int id ) :
 
 void Dialogs::PickUserModeDialog::OnOk_Click( wxCommandEvent& evt )
 {
-	if( Panels::g_ApplyState.ApplyAll(true) )
+	if( g_ApplyState.ApplyAll() )
 	{
 		Close();
 		evt.Skip();

pcsx2/gui/Panels/ConfigurationPanels.h

@@ -406,6 +406,9 @@ namespace Panels
 			virtual ~EnumThread();
 			EnumThread( PluginSelectorPanel& master );
 			void Cancel();
+			void DoNextPlugin( int evtidx );
+
+		protected:
 			sptr ExecuteTask();
 		};
 

pcsx2/gui/Panels/PluginSelectorPanel.cpp

@@ -26,7 +26,12 @@
 #include <wx/dir.h>
 
 // Allows us to force-disable threading for debugging/troubleshooting
-static const bool DisableThreading = true;
+static const bool DisableThreading =
+#ifdef __LINUX__
+	true;		// linux appears to have threading issues with loadlibrary.
+#else
+	false;
+#endif
 
 using namespace wxHelpers;
 using namespace Threading;
@@ -287,12 +292,20 @@ void Panels::PluginSelectorPanel::Apply( AppConfig& conf )
 
 void Panels::PluginSelectorPanel::CancelRefresh()
 {
-	if (!DisableThreading) safe_delete( m_EnumeratorThread );
+	safe_delete( m_EnumeratorThread );
 	safe_delete( m_FileList );
 }
 
 void Panels::PluginSelectorPanel::DoRefresh()
 {
+	m_ComponentBoxes.Reset();
+	if( m_FileList == NULL )
+	{
+		wxCommandEvent evt;
+		OnEnumComplete( evt );
+		return;
+	}
+
 	// Disable all controls until enumeration is complete.
 	// Show status bar for plugin enumeration.
 
@@ -307,19 +320,13 @@ void Panels::PluginSelectorPanel::DoRefresh()
 	m_StatusPanel.Show();
 
 	// Use a thread to load plugins.
-	if (!DisableThreading) safe_delete( m_EnumeratorThread );
+	safe_delete( m_EnumeratorThread );
 	m_EnumeratorThread = new EnumThread( *this );
 
 	if( DisableThreading )
-	{
-		m_ComponentBoxes.Reset();
-		m_EnumeratorThread->ExecuteTask();
-	}
+		m_EnumeratorThread->DoNextPlugin( 0 );
 	else
-	{
 		m_EnumeratorThread->Start();
-		m_ComponentBoxes.Reset();
-	}
 }
 
 bool Panels::PluginSelectorPanel::ValidateEnumerationStatus()
@@ -338,6 +345,12 @@ bool Panels::PluginSelectorPanel::ValidateEnumerationStatus()
 	if( (m_FileList == NULL) || (*pluginlist != *m_FileList) )
 		validated = false;
 
+	if( pluggers == 0 )
+	{
+		safe_delete( m_FileList );
+		return validated;
+	}
+
 	delete m_FileList;
 	m_FileList = pluginlist.release();
 
@@ -363,7 +376,7 @@ void Panels::PluginSelectorPanel::OnConfigure_Clicked( wxCommandEvent& evt )
 
 void Panels::PluginSelectorPanel::OnEnumComplete( wxCommandEvent& evt )
 {
-	if (!DisableThreading) safe_delete( m_EnumeratorThread );
+	safe_delete( m_EnumeratorThread );
 
 	// fixme: Default plugins should be picked based on the timestamp of the DLL or something?
 	//  (for now we just force it to selection zero if nothing's selected)
@@ -388,7 +401,20 @@ void Panels::PluginSelectorPanel::OnProgress( wxCommandEvent& evt )
 {
 	if( m_FileList == NULL ) return;
 
-	size_t evtidx = evt.GetExtraLong();
+	const size_t evtidx = evt.GetExtraLong();
+
+	if( DisableThreading )
+	{
+		const int nextidx = evtidx+1;
+		if( nextidx == m_FileList->Count() )
+		{
+			wxCommandEvent done( wxEVT_EnumerationFinished );
+			GetEventHandler()->AddPendingEvent( done );
+		}
+		else
+			m_EnumeratorThread->DoNextPlugin( nextidx );
+	}
+
 	m_StatusPanel.AdvanceProgress( (evtidx < m_FileList->Count()-1) ?
 		(*m_FileList)[evtidx + 1] : wxString(_("Completing tasks..."))
 	);
@@ -449,15 +475,8 @@ void Panels::PluginSelectorPanel::EnumThread::Cancel()
 	PersistentThread::Cancel();
 }
 
-sptr Panels::PluginSelectorPanel::EnumThread::ExecuteTask()
+void Panels::PluginSelectorPanel::EnumThread::DoNextPlugin( int curidx )
 {
-	DevCon::Status( "Plugin Enumeration Thread started..." );
-
-	wxGetApp().Ping();		// gives the gui thread some time to refresh
-
-	for( int curidx=0; curidx < m_master.FileCount(); ++curidx )
-	{
-		if( m_cancel ) return 0;
 	DbgCon::WriteLn( L"Enumerating Plugin: " + m_master.GetFilename( curidx ) );
 
 	try
@@ -484,13 +503,24 @@ sptr Panels::PluginSelectorPanel::EnumThread::ExecuteTask()
 		Console::Status( ex.FormatDiagnosticMessage() );
 	}
 
-		pthread_testcancel();
-
 	wxCommandEvent yay( wxEVT_EnumeratedNext );
 	yay.SetExtraLong( curidx );
 	m_master.GetEventHandler()->AddPendingEvent( yay );
 }
 
+sptr Panels::PluginSelectorPanel::EnumThread::ExecuteTask()
+{
+	DevCon::Status( "Plugin Enumeration Thread started..." );
+
+	wxGetApp().Ping();		// gives the gui thread some time to refresh
+
+	for( int curidx=0; curidx < m_master.FileCount(); ++curidx )
+	{
+		if( m_cancel ) return 0;
+		DoNextPlugin( curidx );
+		pthread_testcancel();
+	}
+
 	wxCommandEvent done( wxEVT_EnumerationFinished );
 	m_master.GetEventHandler()->AddPendingEvent( done );