Just another manager - not yet used, though.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15011 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/servers/app/InputManager.cpp

@@ -0,0 +1,90 @@
+/*
+ * Copyright 2005, Haiku, Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Axel Dörfler, axeld@pinc-software.de
+ */
+
+// TODO: introduce means to define event stream features (like local vs. net)
+// TODO: introduce the possibility to identify a stream by a unique name
+
+
+#include "EventStream.h"
+#include "InputManager.h"
+
+#include <Autolock.h>
+
+
+InputManager* gInputManager;
+	// the global input manager will be created by the AppServer
+
+
+InputManager::InputManager()
+	: BLocker("input manager"),
+	fFreeStreams(2, true),
+	fUsedStreams(2, true)
+{
+}
+
+
+InputManager::~InputManager()
+{
+}
+
+
+bool
+InputManager::AddStream(EventStream* stream)
+{
+	BAutolock _(this);
+printf("got stream: %p\n", stream);
+	return fFreeStreams.AddItem(stream);
+}
+
+
+void
+InputManager::RemoveStream(EventStream* stream)
+{
+	BAutolock _(this);
+	fFreeStreams.RemoveItem(stream);
+}
+
+
+EventStream*
+InputManager::GetStream()
+{
+	BAutolock _(this);
+	
+	EventStream* stream = NULL;
+	do {
+printf("remove invalid stream: %p\n", stream);
+		delete stream;
+			// this deletes the previous invalid stream
+
+		stream = fFreeStreams.RemoveItemAt(0);
+	} while (stream != NULL && !stream->IsValid());
+
+	if (stream == NULL)
+		return NULL;
+
+	fUsedStreams.AddItem(stream);
+printf("return stream: %p\n", stream);
+	return stream;
+}
+
+
+void
+InputManager::PutStream(EventStream* stream)
+{
+	if (stream == NULL)
+		return;
+
+	BAutolock _(this);
+
+	fUsedStreams.RemoveItem(stream, false);
+	if (stream->IsValid())
+		fFreeStreams.AddItem(stream);
+	else
+		delete stream;
+}
+

src/servers/app/InputManager.h

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2005, Haiku, Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Axel Dörfler, axeld@pinc-software.de
+ */
+#ifndef INPUT_MANAGER_H
+#define INPUT_MANAGER_H
+
+
+#include <Locker.h>
+#include <ObjectList.h>
+
+
+class EventStream;
+
+class InputManager : public BLocker {
+	public:
+		InputManager();
+		virtual ~InputManager();
+
+		bool AddStream(EventStream* stream);
+		void RemoveStream(EventStream* stream);
+
+		EventStream* GetStream();
+		void PutStream(EventStream* stream);
+
+	private:
+		BObjectList<EventStream> fFreeStreams;
+		BObjectList<EventStream> fUsedStreams;
+};
+
+extern InputManager* gInputManager;
+
+#endif	/* INPUT_MANAGER_H */