Improved locking. A bit. :-)

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@11879 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/servers/app/server/Layer.cpp

@@ -50,7 +50,7 @@
 #	define STRACE(x) ;
 #endif
 
-#define DEBUG_LAYER_REBUILD
+//#define DEBUG_LAYER_REBUILD
 #ifdef DEBUG_LAYER_REBUILD
 #	define RBTRACE(x) printf x
 #else
@@ -876,12 +876,12 @@ void Layer::RebuildRegions( const BRegion& reg, uint32 action, BPoint pt, BPoint
 
 	if (!IsHidden())
 	{
-		fFullVisible.MakeEmpty();
-		fVisible = fFull;
 		#ifdef DEBUG_LAYER_REBUILD
 			printf("Layer(%s) real action START\n", GetName());
 			fFull.PrintToStream();
 		#endif
+		fFullVisible.MakeEmpty();
+		fVisible = fFull;
 		
 		if (fParent && fVisible.CountRects() > 0)
 		{

src/servers/app/server/RootLayer.cpp

@@ -539,6 +539,7 @@ void RootLayer::RemoveSubsetWinBorder(WinBorder *winBorder, WinBorder *fromWinBo
 void RootLayer::SetActiveWorkspace(int32 index)
 {
 	STRACE(("RootLayer(%s)::SetActiveWorkspace(%ld)\n", GetName(), index));
+	// we need to lock the window list here so no other window can be created 
 	desktop->Lock();
 
 	// if fWorkspace[index] object does not exist, create and add allowed WinBorders
@@ -896,9 +897,9 @@ bool RootLayer::SetScreenResolution(int32 width, int32 height, uint32 colorspace
 //---------------------------------------------------------------------------
 //				Input related methods
 //---------------------------------------------------------------------------
+inline
 void RootLayer::MouseEventHandler(int32 code, BPortLink& msg)
 {
-	// TODO: locking mechanism needs SERIOUS rethought
 	switch(code)
 	{
 		case B_MOUSE_DOWN:
@@ -956,12 +957,11 @@ void RootLayer::MouseEventHandler(int32 code, BPortLink& msg)
 				}
 				else
 				{
-					if (!(target->Window()->Flags() & B_WILL_ACCEPT_FIRST_CLICK))
+					if (exFocus != FocusWinBorder()
+						 && !(target->Window()->Flags() & B_WILL_ACCEPT_FIRST_CLICK))
 						sendMessage = false;
 
-					target->Window()->Lock();
 					target->MouseDown(evt, sendMessage);
-					target->Window()->Unlock();
 				}
 
 				fMouseTarget = target;
@@ -991,9 +991,7 @@ void RootLayer::MouseEventHandler(int32 code, BPortLink& msg)
 			// currently mouse up goes to the same window which received mouse down
 			if (fMouseTarget)
 			{
-				fMouseTarget->Window()->Lock();
 				fMouseTarget->MouseUp(evt);
-				fMouseTarget->Window()->Unlock();
 				fMouseTarget = NULL;
 			}
 
@@ -1042,9 +1040,7 @@ void RootLayer::MouseEventHandler(int32 code, BPortLink& msg)
 				}
 				else
 				{
-					fMouseTarget->Window()->Lock();
 					fMouseTarget->MouseMoved(evt);
-					fMouseTarget->Window()->Unlock();
 				}
 			}
 			else
@@ -1052,9 +1048,7 @@ void RootLayer::MouseEventHandler(int32 code, BPortLink& msg)
 				WinBorder	*target = WinBorderAt(evt.where);
 				if (target)
 				{
-					target->Window()->Lock();
 					target->MouseMoved(evt);
-					target->Window()->Unlock();
 				}
 			}
 
@@ -1077,9 +1071,7 @@ void RootLayer::MouseEventHandler(int32 code, BPortLink& msg)
 			if (FocusWinBorder())
 			{
 				BPoint		cursorPos = GetDisplayDriver()->GetCursorPosition();
-				FocusWinBorder()->Window()->Lock();
 				FocusWinBorder()->MouseWheel(evt, cursorPos);
-				FocusWinBorder()->Window()->Unlock();
 			}
 			break;
 		}
@@ -1091,6 +1083,7 @@ void RootLayer::MouseEventHandler(int32 code, BPortLink& msg)
 	}
 }
 
+inline
 void RootLayer::KeyboardEventHandler(int32 code, BPortLink& msg)
 {
 
@@ -1268,8 +1261,6 @@ void RootLayer::KeyboardEventHandler(int32 code, BPortLink& msg)
 
 			Workspace *ws=ActiveWorkspace();
 			
-			Lock();
-			
 			WinBorder *target=ws->Focus();
 			if(target)
 			{
@@ -1295,8 +1286,6 @@ void RootLayer::KeyboardEventHandler(int32 code, BPortLink& msg)
 				}
 			}
 			
-			Unlock();
-
 			if (string)
 				free(string);
 			break;
@@ -1364,8 +1353,6 @@ void RootLayer::KeyboardEventHandler(int32 code, BPortLink& msg)
 			
 			Workspace *ws=ActiveWorkspace();
 			
-			Lock();
-			
 			WinBorder *target=ws->Focus();
 			if(target)
 			{
@@ -1389,8 +1376,6 @@ void RootLayer::KeyboardEventHandler(int32 code, BPortLink& msg)
 				}
 			}
 			
-			Unlock();
-
 			if (string)
 				free(string);
 			break;
@@ -1416,8 +1401,6 @@ void RootLayer::KeyboardEventHandler(int32 code, BPortLink& msg)
 			
 			Workspace *ws=ActiveWorkspace();
 			
-			Lock();
-			
 			WinBorder *target=ws->Focus();
 			if(target)
 			{
@@ -1434,7 +1417,6 @@ void RootLayer::KeyboardEventHandler(int32 code, BPortLink& msg)
 				}
 			}
 			
-			Unlock();
 			break;
 		}
 		case B_UNMAPPED_KEY_UP:
@@ -1458,8 +1440,6 @@ void RootLayer::KeyboardEventHandler(int32 code, BPortLink& msg)
 			
 			Workspace *ws=ActiveWorkspace();
 			
-			Lock();
-			
 			WinBorder *target=ws->Focus();
 			if(target)
 			{
@@ -1476,7 +1456,6 @@ void RootLayer::KeyboardEventHandler(int32 code, BPortLink& msg)
 				}
 			}
 			
-			Unlock();
 			break;
 		}
 		case B_MODIFIERS_CHANGED:
@@ -1498,8 +1477,6 @@ void RootLayer::KeyboardEventHandler(int32 code, BPortLink& msg)
 
 			Workspace *ws=ActiveWorkspace();
 			
-			Lock();
-			
 			WinBorder *target=ws->Focus();
 			if(target)
 			{
@@ -1515,7 +1492,7 @@ void RootLayer::KeyboardEventHandler(int32 code, BPortLink& msg)
 					win->SendMessageToClient(&keymsg);
 				}
 			}
-			Unlock();
+
 			break;
 		}
 		default:

src/servers/app/server/ServerWindow.cpp

@@ -249,9 +249,7 @@ void ServerWindow::ReplaceDecorator(void)
 //! Requests that the ServerWindow's BWindow quit
 void ServerWindow::Quit(void)
 {
-	if (!IsLocked())
+	// NOTE: if you do something else, other than sending a port message, PLEASE lock
-		debugger("you must lock a ServerWindow object before calling ::Quit()\n");
-
 	STRACE(("ServerWindow %s: Quit\n",fTitle.String()));
 	BMessage msg;
 	
@@ -263,9 +261,8 @@ void ServerWindow::Quit(void)
 //! Shows the window's WinBorder
 void ServerWindow::Show(void)
 {
+	// NOTE: if you do something else, other than sending a port message, PLEASE lock
 	STRACE(("ServerWindow %s: Show\n",fTitle.String()));
-	if (!IsLocked())
-		debugger("you must lock a ServerWindow object before calling ::Show()\n");
 
 	if(!fWinBorder->IsHidden())
 		return;
@@ -276,9 +273,8 @@ void ServerWindow::Show(void)
 //! Hides the window's WinBorder
 void ServerWindow::Hide(void)
 {
+	// NOTE: if you do something else, other than sending a port message, PLEASE lock
 	STRACE(("ServerWindow %s: Hide\n",fTitle.String()));
-	if (!IsLocked())
-		debugger("you must lock a ServerWindow object before calling ::Hide()\n");
 
 	if(fWinBorder->IsHidden())
 		return;
@@ -297,10 +293,10 @@ bool ServerWindow::IsHidden(void) const
 //------------------------------------------------------------------------------
 void ServerWindow::Minimize(bool status)
 {
+	// NOTE: if you do something else, other than sending a port message, PLEASE lock
 	// This function doesn't need much -- check to make sure that we should and
 	// send the message to the client. According to the BeBook, the BWindow hook function
 	// does all the heavy lifting for us. :)
-	
 	bool sendMessages = false;
 
 	if (status)
@@ -334,6 +330,7 @@ void ServerWindow::Minimize(bool status)
 // Sends a message to the client to perform a Zoom
 void ServerWindow::Zoom(void)
 {
+	// NOTE: if you do something else, other than sending a port message, PLEASE lock
 	BMessage msg;
 	msg.what=B_ZOOM;
 	SendMessageToClient(&msg);

src/servers/app/server/WinBorder.cpp

@@ -163,17 +163,9 @@ click_type WinBorder::TellWhat(PointerEvent& evt) const
 */
 void WinBorder::MouseDown(PointerEvent& evt, bool sendMessage)
 {
-	if (!(Window()->IsLocked()))
+	// user clicked on WinBorder's full visible region,
-		debugger("you must lock the attached ServerWindow object\n\t before calling WinBorder::MouseDown()\n");
+	// find out if the user clicked the decorator.
 
-	// this is important to determine how much we should resize or move the Layer(WinBorder)(window)
-
-	// user clicked on WinBorder's visible region, which is in fact decorator's.
-	// so, if true, we find out if the user clicked the decorator.
-
-	Layer	*target = LayerAt(evt.where);
-	if (target == this)
-	{
 	click_type action;
 
 	// find out where user clicked in Decorator
@@ -209,21 +201,15 @@ void WinBorder::MouseDown(PointerEvent& evt, bool sendMessage)
 		case DEC_MOVETOBACK:
 		{
 			// do nothing - RootLayer takes care of that
+			STRACE_CLICK(("===> DEC_RESIZE || DEC_DRAG || DEC_MOVETOBACK \n"));
 			break;
 		}
 		case DEC_NONE:
 		{
-				debugger("WinBorder::MouseDown - Decorator should NOT return DEC_NONE\n");
+			Window()->Lock();
-				break;
+			// TODO: you can improve performance by doing this search client-side!
-			}
+			Layer	*target = LayerAt(evt.where);
-			default:
+			if (sendMessage && target && target != fTopLayer)
-			{
-				debugger("WinBorder::MouseDown - Decorator returned UNKNOWN code\n");
-				break;
-			}
-		}
-	}
-	else if (sendMessage && target && target != fTopLayer)
 			{
 				BMessage msg;
 				msg.what = B_MOUSE_DOWN;
@@ -235,6 +221,15 @@ void WinBorder::MouseDown(PointerEvent& evt, bool sendMessage)
 
 				Window()->SendMessageToClient(&msg, target->fViewToken, false);
 			}
+			Window()->Unlock();
+			break;
+		}
+		default:
+		{
+			debugger("WinBorder::MouseDown - Decorator returned UNKNOWN code\n");
+			break;
+		}
+	}
 
 	fLastMousePosition = evt.where;
 }
@@ -249,9 +244,6 @@ void WinBorder::MouseDown(PointerEvent& evt, bool sendMessage)
 */
 void WinBorder::MouseMoved(PointerEvent& evt)
 {
-	if (!(Window()->IsLocked()))
-		debugger("you must lock the attached ServerWindow object\n\t before calling WinBorder::MouseMoved()\n");
-
 	// Do a click test only if we have to, which would be now. :)
 	click_type location=fDecorator->Clicked(evt.where, evt.buttons,fKeyModifiers);
 		
@@ -274,6 +266,11 @@ void WinBorder::MouseMoved(PointerEvent& evt)
 	}
 
 	if (fTopLayer->fFullVisible.Contains(evt.where))
+	{
+		Window()->Lock();
+		// TODO: you can improve performance by doing this search client-side!
+		Layer	*target = LayerAt(evt.where);
+		if (target)
 		{
 			BMessage movemsg(B_MOUSE_MOVED);
 			movemsg.AddInt64("when",evt.when);
@@ -282,6 +279,8 @@ void WinBorder::MouseMoved(PointerEvent& evt)
 			
 			Window()->SendMessageToClient(&movemsg);
 		}
+		Window()->Unlock();
+	}
 
 	fLastMousePosition = evt.where;
 }
@@ -296,9 +295,6 @@ void WinBorder::MouseMoved(PointerEvent& evt)
 */
 void WinBorder::MouseUp(PointerEvent& evt)
 {
-	if (!(Window()->IsLocked()))
-		debugger("you must lock the attached ServerWindow object\n\t before calling WinBorder::MouseUp()\n");
-
 	click_type action;
 
 	// find out where user clicked in Decorator
@@ -333,6 +329,10 @@ void WinBorder::MouseUp(PointerEvent& evt)
 		return;
 	}
 
+	if (action == DEC_NONE)
+	{
+		Window()->Lock();
+		// TODO: you can improve performance by doing this search client-side!
 		Layer	*target = LayerAt(evt.where);
 		if (target && target != fTopLayer)
 		{
@@ -343,11 +343,18 @@ void WinBorder::MouseUp(PointerEvent& evt)
 
 			Window()->SendMessageToClient(&upmsg, target->fViewToken, false);
 		}
+		Window()->Unlock();
+	}
 }
 
 void WinBorder::MouseWheel(PointerEvent& evt, BPoint& ptWhere)
 {
 	if (fTopLayer->fFullVisible.Contains(ptWhere))
+	{
+		Window()->Lock();
+		// TODO: you can improve performance by doing this search client-side!
+		Layer	*target = LayerAt(evt.where);
+		if (target && target != fTopLayer)
 		{
 			BMessage wheelmsg(B_MOUSE_WHEEL_CHANGED);
 			wheelmsg.AddInt64("when",evt.when);
@@ -356,6 +363,8 @@ void WinBorder::MouseWheel(PointerEvent& evt, BPoint& ptWhere)
 
 			Window()->SendMessageToClient(&wheelmsg);
 		}
+		Window()->Unlock();
+	}
 }
 
 //! Sets the decorator focus to active or inactive colors