haiku/headers/private/kernel/disk_device_manager/KDiskSystem.h
Ingo Weinhold b22221ad17 Minor changes to the KDiskSystem interface.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3603 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-06-22 23:03:17 +00:00

133 lines
4.4 KiB
C++

// KDiskSystem.h
#ifndef _K_DISK_DEVICE_SYSTEM_H
#define _K_DISK_DEVICE_SYSTEM_H
#include "disk_device_manager.h"
namespace BPrivate {
namespace DiskDevice {
class KDiskDeviceJob;
class KPartition;
class KDiskSystem {
public:
KDiskSystem(const char *name);
virtual ~KDiskSystem();
virtual status_t Init();
// void SetID(disk_system_id id);
disk_system_id ID() const;
const char *Name() const;
virtual const char *PrettyName();
virtual bool IsFileSystem() const;
bool IsPartitioningSystem() const;
// manager will be locked
status_t Load(); // load/unload -- can be nested
void Unload(); //
bool IsLoaded() const;
// Scanning
// Device must be write locked.
virtual float Identify(KPartition *partition, void **cookie);
virtual status_t Scan(KPartition *partition, void *cookie);
virtual void FreeIdentifyCookie(KPartition *partition, void *cookie);
virtual void FreeCookie(KPartition *partition);
virtual void FreeContentCookie(KPartition *partition);
// Querying
// Device must be read locked.
virtual bool SupportsDefragmenting(KPartition *partition,
bool *whileMounted);
virtual bool SupportsRepairing(KPartition *partition, bool checkOnly,
bool *whileMounted);
virtual bool SupportsResizing(KPartition *partition, bool *whileMounted);
virtual bool SupportsResizingChild(KPartition *child);
virtual bool SupportsMoving(KPartition *partition, bool *whileMounted);
virtual bool SupportsMovingChild(KPartition *child);
virtual bool SupportsCreatingChild(KPartition *partition);
virtual bool SupportsParentSystem(KDiskSystem *system);
virtual bool SupportsChildSystem(KDiskSystem *system);
virtual bool ValidateResize(KPartition *partition, off_t *size);
virtual bool ValidateResizeChild(KPartition *partition, off_t *size);
virtual bool ValidateMove(KPartition *partition, off_t *start);
virtual bool ValidateMoveChild(KPartition *partition, off_t *start);
virtual bool ValidateCreateChild(KPartition *partition, off_t *start,
off_t *size, const char *type,
const char *parameters);
virtual bool ValidateInitialize(KPartition *partition,
const char *parameters);
virtual bool ValidateSetParameters(KPartition *partition,
const char *parameters);
virtual bool ValidateSetContentParameters(KPartition *child,
const char *parameters);
virtual int32 CountPartitionableSpaces(KPartition *partition);
virtual bool GetPartitionableSpaces(KPartition *partition,
partitionable_space_data *spaces,
int32 count,
int32 *actualCount = NULL);
// Writing
// Device should not be locked.
virtual status_t Defragment(KPartition *partition, KDiskDeviceJob *job);
virtual status_t Repair(KPartition *partition, bool checkOnly,
KDiskDeviceJob *job);
virtual status_t Resize(KPartition *partition, off_t size,
KDiskDeviceJob *job);
virtual status_t ResizeChild(KPartition *child, off_t size,
KDiskDeviceJob *job);
virtual status_t Move(KPartition *partition, off_t offset,
KDiskDeviceJob *job);
virtual status_t MoveChild(KPartition *child, off_t offset,
KDiskDeviceJob *job);
virtual status_t CreateChild(KPartition *partition, off_t offset,
off_t size, const char *type,
const char *parameters, KDiskDeviceJob *job,
KPartition **child = NULL,
partition_id childID = -1);
virtual status_t DeleteChild(KPartition *child, KDiskDeviceJob *job);
virtual status_t Initialize(KPartition *partition, const char *parameters,
KDiskDeviceJob *job);
virtual status_t SetParameters(KPartition *partition,
const char *parameters,
KDiskDeviceJob *job);
virtual status_t SetContentParameters(KPartition *partition,
const char *parameters,
KDiskDeviceJob *job);
// The KPartition* parameters for the writing methods are a bit `volatile',
// since the device will not be locked, when they are called. The KPartition
// is registered though, so that it is at least guaranteed that the object
// won't go away.
protected:
virtual status_t LoadModule();
virtual void UnloadModule();
status_t SetPrettyName(const char *name);
static int32 _NextID();
private:
disk_system_id fID;
char *fName;
char *fPrettyName;
int32 fLoadCounter;
static int32 fNextID;
};
} // namespace DiskDevice
} // namespace BPrivate
using BPrivate::DiskDevice::KDiskSystem;
#endif // _K_DISK_DEVICE_SYSTEM_H