DiskDevice API v2.0

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3374 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-05-28 21:43:58 +00:00
parent 800e59617f
commit 40f3824020
5 changed files with 125 additions and 143 deletions
@@ -6,88 +6,96 @@
 #ifndef _PARTITION_H
 #define _PARTITION_H

-#include <disk_scanner.h>
-#include <Mime.h>
 #include <ObjectList.h>
-#include <Rect.h>
-#include <String.h>
-
-class BDiskDevice;
-class BSession;
-class BVolume;

 class BPartition {
 public:
-	~BPartition();
-
-	BSession *Session() const;
-	BDiskDevice *Device() const;
-
-	off_t Offset() const;
+	// General Info
+	
+	off_t Offset() const;		// 0 for devices
 	off_t Size() const;
 	int32 BlockSize() const;
-	int32 Index() const;
-
-	uint32 Flags() const;
-	bool IsHidden() const;
-	bool IsVirtual() const;
-	bool IsEmpty() const;
-	bool ContainsFileSystem() const;
-
-	const char *Name() const;
-	const char *Type() const;
-	const char *FileSystemShortName() const;
-	const char *FileSystemLongName() const;
-	const char *VolumeName() const;
-
-	uint32 FileSystemFlags() const;
-
-	bool IsMounted() const;
-
+	int32 Index() const;		// 0 for devices
+	
+	bool IsMountable();
+	bool IsPartitionable();
+	bool IsDevice();
+	bool IsReadOnly() const;
+	
+	const char* Name() const;
+	const char* Type() const;   // See DiskDeviceTypes.h
 	int32 UniqueID() const;
+	virtual char* Path() const; // Recursively obtained down to the parent device
+	
+	uint32 Flags() const;		// not sure if this is really necessary anymore
+	

-	status_t GetVolume(BVolume *volume) const;
+	// Hierarchy Info

-	status_t GetIcon(BBitmap *icon, icon_size which) const;
- 
-	status_t Mount(uint32 mountFlags = 0, const char *parameters = NULL);
-	status_t Unmount();
+	const BPartition* Parent();
+	BPartition* PartitionAt(int32 index) const;
+	BPartition* PartitionWithID(int32 id);

-	status_t GetInitializationParameters(const char *fileSystem,
-										 BString *volumeName,
-										 BString *parameters,
-										 BRect dialogCenter = BRect(),
-										 bool *cancelled = NULL);
-	status_t Initialize(const char *fileSystem, const char *volumeName,
-						const char *parameters);
-	status_t Initialize(const char *fileSystem = "bfs",
-						BRect dialogCenter = BRect(),
-						bool *cancelled = NULL);
+	int32 CountChildren() const;	// Immediate descendents
+	int32 CountDescendents() const;	// All descendents
+	
+	BPartition* VisitEachChild(BDiskDeviceVisitor *visitor);
+	bool Traverse(BDiskDeviceVisitor *visitor);

-private:
-	BPartition();
-	BPartition(const BPartition &);

-	BPartition &operator=(const BPartition &);
+	// Functions relevant to manipulating *this* partition

-	void _Unset();
-	status_t _Unarchive(BMessage *archive);
+	off_t MinimumSize();
+	off_t MaximumSize();
+		// Both based on information obtained from the system used for the
+		// partition and the partitioning system used for its parent

-	void _SetSession(BSession *session);
+	int32 MoveTo(off_t start, BMessenger progressMessenger);
+	int32 Resize(off_t size, BMessenger progressMessenger);
+	
+	status_t GetParameterEditor(BDiskScannerParameterEditor **editor,
+	                            BDiskScannerParameterEditor **parentEditor);
+		// For changing parameters of the partition after it's been initialized,
+		// i.e. file system block size, volume name, etc. "editor" is an editor
+		// for the system with which this partition is initialized, "parentEditor"
+		// is an editor for any settings the parent partitioning system may
+		// allow to be edited ("*parentEditor" will be set to NULL if not
+		// applicable).

-private:
-	friend class BDiskDeviceList;
-	friend class BSession;
+	status_t GetInitializationParameterEditor(const char *system,
+	                                          BDiskScannerParameterEditor **editor);
+	int32 Initialize(const char *system,
+	                 const char *parameters,
+	                 BMessenger progressMessenger);
+	                 	// Initialization is used to set up a partition with either
+	                 	// an empty file system or an empty partitioning system

-	BSession				*fSession;
+
+	// Functions relevant to manipluating *child* partitions
+
+	status_t GetPartitionCreationParameterEditor(BDiskScannerParameterEditor **editor);
+	int32 CreateChildPartition(off_t start,
+	                           off_t length,
+	                           const char *parameters,
+	                           BMessenger progressMessenger);
+	int32 DeleteChildPartition(int32 index,
+	                           BMessenger progressMessenger);	
+	
+protected:
+	BObjectList<BPartition>	fChildren;
 	int32					fUniqueID;
 	int32					fChangeCounter;
+	off_t					fOffset;
+	off_t					fSize;
+	int32					fBlockSize;
 	int32					fIndex;
-// TODO: Also contains the device name, which we can get from Device() anyway.
-//		 We could either remove it from extended_partition_info or list
-//		 the individual fields here.
-	extended_partition_info	fInfo;
-	dev_t					fVolumeID;
-};
+
+	bool					fIsMountable;
+	bool					fIsDevice;
+	bool					fIsReadOnly;
+	
+	char					fName[B_FILE_NAME_LENGTH];
+	char					fType[B_FILE_NAME_LENGTH];
+}

 #endif	// _PARTITION_H