First draft of the userland disk system add-on interface. A good deal of

functionality of the kernel add-ons will be moved into userland, which will simplify the kernel-side significantly. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22481 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-10-08 01:33:46 +00:00
parent 0b7582a306
commit 98b97f9603
3 changed files with 455 additions and 0 deletions
@@ -0,0 +1,121 @@
+/*
+ * Copyright 2007, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _DISK_SYSTEM_ADD_ON_H
+#define _DISK_SYSTEM_ADD_ON_H
+
+#include <String.h>
+#include <SupportDefs.h>
+
+
+class BList;
+class BMutablePartition;
+class BPartitionHandle;
+class BPartitioningInfo;
+
+
+class BDiskSystemAddOn {
+public:
+								BDiskSystemAddOn(const char* name,
+									uint32 flags);
+	virtual						~BDiskSystemAddOn();
+
+			const char*			Name() const;
+			uint32				Flags() const;
+
+	virtual	status_t			CreatePartitionHandle(
+									BMutablePartition* partition,
+									BPartitionHandle** handle) = 0;
+
+	virtual	bool				CanInitialize(BMutablePartition* partition);
+	virtual	bool				ValidateInitialize(BMutablePartition* partition,
+									BString* name, const char* parameters);
+	virtual	status_t			Initialize(BMutablePartition* partition,
+									const char* name, const char* parameters,
+									BPartitionHandle** handle);
+
+private:
+			BString				fName;
+			uint32				fFlags;
+};
+
+
+class BPartitionHandle {
+public:
+								BPartitionHandle(BMutablePartition* partition);
+	virtual						~BPartitionHandle();
+
+			BMutablePartition*	Partition() const;
+
+	virtual	uint32				SupportedOperations(uint32 mask);
+	virtual	uint32				SupportedChildOperations(
+									BMutablePartition* child, uint32 mask);
+
+	virtual	bool				SupportsInitializingChild(
+									BMutablePartition* child,
+									const char* diskSystem);
+	virtual	bool				IsSubSystemFor(BMutablePartition* child);
+
+	virtual	status_t			GetNextSupportedType(BMutablePartition* child,
+									int32* cookie, BString* type);
+									// child can be NULL
+	virtual	status_t			GetTypeForContentType(const char* contentType,
+									BString* type);
+
+	virtual	status_t			GetPartitioningInfo(BPartitioningInfo* info);
+
+
+	virtual	status_t			Repair(bool checkOnly);
+		// TODO: How is this supposed to work?
+
+	virtual	bool				ValidateResize(off_t* size);
+	virtual	bool				ValidateResizeChild(BMutablePartition* child,
+									off_t* size);
+	virtual	status_t			Resize(off_t size);
+	virtual	status_t			ResizeChild(BMutablePartition* child,
+									off_t size);
+
+	virtual	bool				ValidateMove(off_t* offset);
+	virtual	bool				ValidateMoveChild(BMutablePartition* child,
+									off_t* offset);
+	virtual	status_t			Move(off_t offset);
+	virtual	status_t			MoveChild(BMutablePartition* child,
+									off_t offset);
+
+	virtual	bool				ValidateSetContentName(BString* name);
+	virtual	bool				ValidateSetName(BMutablePartition* child,
+									BString* name);
+	virtual	status_t			SetContentName(const char* name);
+	virtual	status_t			SetName(BMutablePartition* child,
+									const char* name);
+
+	virtual	bool				ValidateSetType(BMutablePartition* child,
+									const char* type);
+	virtual	status_t			SetType(BMutablePartition* child,
+									const char* type);
+
+	virtual	bool				ValidateSetContentParameters(
+									const char* parameters);
+	virtual	bool				ValidateSetParameters(BMutablePartition* child,
+									const char* parameters);
+	virtual	status_t			SetContentParameters(const char* parameters);
+	virtual	status_t			SetParameters(BMutablePartition* child,
+									const char* parameters);
+
+	virtual	bool				ValidateCreateChild(off_t* offset,
+									off_t* size, const char* type,
+									const char* parameters);
+	virtual	status_t			CreateChild(BMutablePartition* child);
+
+	virtual	status_t			DeleteChild(BMutablePartition* child);
+
+private:
+			BMutablePartition*	fPartition;
+};
+
+
+extern "C" status_t get_disk_system_add_ons(BList* addOns);
+	// Implemented in the add-on
+
+#endif	// _DISK_SYSTEM_ADD_ON_H