Debugger: Split into core library and application.

- Add subfolder src/kits/debugger which contains the debugger's core
  functionality and lower layers. Correspondingly add headers/private/debugger
  for shared headers to be used by clients such as the Debugger application
  and eventual remote_debug_server. Adjust various files to account for
  differences as a result of the split and moves.
- Add libdebugger.so to minimal Jamfile.

headers/private/debugger/files/LocatableDirectory.h

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2009, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef LOCATABLE_DIRECTORY_H
+#define LOCATABLE_DIRECTORY_H
+
+#include "LocatableEntry.h"
+
+
+class LocatableDirectory : public LocatableEntry {
+public:
+								LocatableDirectory(LocatableEntryOwner* owner,
+									LocatableDirectory* parent,
+									const BString& path);
+								~LocatableDirectory();
+
+	virtual	const char*			Name() const;
+			const char*			Path() const;
+			void				GetPath(BString& _path) const;
+
+			// mutable (requires locking)
+	virtual	bool				GetLocatedPath(BString& _path) const;
+	virtual	void				SetLocatedPath(const BString& path,
+									bool implicit);
+
+			void				AddEntry(LocatableEntry* entry);
+			void				RemoveEntry(LocatableEntry* entry);
+			const LocatableEntryList& Entries() const	{ return fEntries; }
+
+private:
+			BString				fPath;
+			BString				fLocatedPath;
+			LocatableEntryList	fEntries;
+};
+
+
+#endif	// LOCATABLE_DIRECTORY_H

headers/private/debugger/files/LocatableEntry.h

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2009, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef LOCATABLE_ENTRY_H
+#define LOCATABLE_ENTRY_H
+
+#include <String.h>
+
+#include <Referenceable.h>
+#include <util/DoublyLinkedList.h>
+#include <util/OpenHashTable.h>
+
+
+enum locatable_entry_state {
+	LOCATABLE_ENTRY_UNLOCATED,
+	LOCATABLE_ENTRY_LOCATED_IMPLICITLY,
+	LOCATABLE_ENTRY_LOCATED_EXPLICITLY
+};
+
+
+class LocatableDirectory;
+class LocatableEntry;
+
+
+class LocatableEntryOwner {
+public:
+	virtual						~LocatableEntryOwner();
+
+	virtual	bool				Lock() = 0;
+	virtual	void				Unlock() = 0;
+
+	virtual	void				LocatableEntryUnused(LocatableEntry* entry) = 0;
+};
+
+
+class LocatableEntry : public BReferenceable,
+	public DoublyLinkedListLinkImpl<LocatableEntry> {
+public:
+								LocatableEntry(LocatableEntryOwner* owner,
+									LocatableDirectory* parent);
+								~LocatableEntry();
+
+			LocatableDirectory*	Parent() const	{ return fParent; }
+	virtual	const char*			Name() const = 0;
+
+			// mutable (requires locking)
+			locatable_entry_state State() const	{ return fState; }
+	virtual	bool				GetLocatedPath(BString& _path) const = 0;
+	virtual	void				SetLocatedPath(const BString& path,
+									bool implicit) = 0;
+
+protected:
+	virtual	void				LastReferenceReleased();
+
+protected:
+			LocatableEntryOwner* fOwner;
+			LocatableDirectory*	fParent;
+			locatable_entry_state fState;
+
+public:
+			LocatableEntry* fNext;
+};
+
+
+typedef DoublyLinkedList<LocatableEntry> LocatableEntryList;
+
+
+#endif	// LOCATABLE_ENTRY_H

headers/private/debugger/files/LocatableFile.h

@@ -0,0 +1,56 @@
+/*
+ * Copyright 2009, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef LOCATABLE_FILE_H
+#define LOCATABLE_FILE_H
+
+#include <ObjectList.h>
+
+#include "LocatableEntry.h"
+
+
+class LocatableFile : public LocatableEntry {
+public:
+	class Listener;
+
+public:
+								LocatableFile(LocatableEntryOwner* owner,
+									LocatableDirectory* directory,
+									const BString& name);
+								~LocatableFile();
+
+	virtual	const char*			Name() const;
+			void				GetPath(BString& _path) const;
+
+			// mutable (requires/does locking)
+	virtual	bool				GetLocatedPath(BString& _path) const;
+	virtual	void				SetLocatedPath(const BString& path,
+									bool implicit);
+
+			bool				AddListener(Listener* listener);
+			void				RemoveListener(Listener* listener);
+
+private:
+			typedef BObjectList<Listener> ListenerList;
+
+private:
+			void				_NotifyListeners();
+
+private:
+			BString				fName;
+			BString				fLocatedPath;
+			ListenerList		fListeners;
+};
+
+
+class LocatableFile::Listener {
+public:
+	virtual						~Listener();
+
+	virtual	void				LocatableFileChanged(LocatableFile* file) = 0;
+									// called with lock held
+};
+
+
+#endif	// LOCATABLE_FILE_H

headers/private/debugger/files/SourceFile.h

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2009, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef SOURCE_FILE_H
+#define SOURCE_FILE_H
+
+#include <Referenceable.h>
+
+
+class SourceFile;
+
+
+class SourceFileOwner {
+public:
+	virtual						~SourceFileOwner();
+
+	virtual	void				SourceFileUnused(SourceFile* sourceFile) = 0;
+	virtual	void				SourceFileDeleted(SourceFile* sourceFile) = 0;
+};
+
+
+
+class SourceFile : public BReferenceable {
+public:
+								SourceFile(SourceFileOwner* owner);
+								~SourceFile();
+
+			status_t			Init(const char* path);
+
+			int32				CountLines() const;
+			const char*			LineAt(int32 index) const;
+			int32				LineLengthAt(int32 index) const;
+
+protected:
+	virtual	void				LastReferenceReleased();
+
+private:
+			SourceFileOwner*	fOwner;
+			char*				fFileContent;
+			int32*				fLineOffsets;
+			int32				fLineCount;
+};
+
+
+
+#endif	// SOURCE_FILE_H