haiku/headers/private/kernel/disk_device_manager/KPartitioningSystem.h
Ingo Weinhold bf95c9aee6 * The shadow_changed() FS and partitioning system hooks take an
additional partition_data* child parameter now.
* _user_get_partitionable_spaces() doesn't need to copy the buffer into
  the kernel, since it is no input parameter. It also copies back the
  actual partitionable spaces count on error, now -- B_BUFFER_OVERFLOW
  is returned when the buffer was too small, but then the count must be
  returned too.
* Fixed several instances of syscall implementations that unloaded a disk
  system, although they didn't load it in the first place. This screwed
  up the load count with undesirable consequences.
* _user_create_child_partition() would set the size to the supplied
  offset.
* Fixed broken loop in KPhysicalPartition::CreateShadowPartition().
* KPartition::RemoveChild() notified the listeners about the wrong
  event.
* Intel partitioning module:
  - The *_get_partitionable_spaces() correctly return B_BUFFER_OVERFLOW
    now, if the supplied buffer is too small.
  - Implemented a part of pm_shadow_changed(), which creates and updates
    the PartitionMap, so that the validate_*() hooks have a chance to
    work at all.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22475 a95241bf-73f2-0310-859d-f6bbb57e9c96
2007-10-07 15:39:35 +00:00

126 lines
4.4 KiB
C++

/*
* Copyright 2003-2007, Haiku, Inc. All Rights Reserved.
* Distributed under the terms of the MIT License.
*
* Authors:
* Ingo Weinhold <bonefish@cs.tu-berlin.de>
*/
#ifndef _K_PARTITIONING_DISK_DEVICE_SYSTEM_H
#define _K_PARTITIONING_DISK_DEVICE_SYSTEM_H
#include "KDiskSystem.h"
struct partition_module_info;
namespace BPrivate {
namespace DiskDevice {
/**
* \brief Wrapper for the C interface of a partitioning system add-on.
*
* See \ref ddm_modules.h for better description of the interface.
*/
class KPartitioningSystem : public KDiskSystem {
public:
KPartitioningSystem(const char *name);
virtual ~KPartitioningSystem();
virtual status_t Init();
// Scanning
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
virtual uint32 GetSupportedOperations(KPartition* partition, uint32 mask);
virtual uint32 GetSupportedChildOperations(KPartition* child, uint32 mask);
virtual bool SupportsInitializingChild(KPartition *child,
const char *diskSystem);
virtual bool IsSubSystemFor(KPartition *partition);
virtual bool ValidateResize(KPartition *partition, off_t *size);
virtual bool ValidateResizeChild(KPartition *child, off_t *size);
virtual bool ValidateMove(KPartition *partition, off_t *start);
virtual bool ValidateMoveChild(KPartition *child, off_t *start);
virtual bool ValidateSetName(KPartition *partition, char *name);
virtual bool ValidateSetContentName(KPartition *partition, char *name);
virtual bool ValidateSetType(KPartition *partition, const char *type);
virtual bool ValidateSetParameters(KPartition *partition,
const char *parameters);
virtual bool ValidateSetContentParameters(KPartition *parameters,
const char *parameters);
virtual bool ValidateInitialize(KPartition *partition, char *name,
const char *parameters);
virtual bool ValidateCreateChild(KPartition *partition, off_t *start,
off_t *size, const char *type,
const char *parameters, int32 *index);
virtual int32 CountPartitionableSpaces(KPartition *partition);
virtual status_t GetPartitionableSpaces(KPartition *partition,
partitionable_space_data *buffer,
int32 count,
int32 *actualCount = NULL);
virtual status_t GetNextSupportedType(KPartition *partition, int32 *cookie,
char *type);
virtual status_t GetTypeForContentType(const char *contentType,
char *type);
// Shadow partition modification
virtual status_t ShadowPartitionChanged(KPartition *partition,
KPartition *child, uint32 operation);
// Writing
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 SetName(KPartition *partition, char *name,
KDiskDeviceJob *job);
virtual status_t SetContentName(KPartition *partition, char *name,
KDiskDeviceJob *job);
virtual status_t SetType(KPartition *partition, char *type,
KDiskDeviceJob *job);
virtual status_t SetParameters(KPartition *partition,
const char *parameters,
KDiskDeviceJob *job);
virtual status_t SetContentParameters(KPartition *partition,
const char *parameters,
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 *name,
const char *parameters, KDiskDeviceJob *job);
protected:
virtual status_t LoadModule();
virtual void UnloadModule();
private:
partition_module_info *fModule;
};
} // namespace DiskDevice
} // namespace BPrivate
using BPrivate::DiskDevice::KPartitioningSystem;
#endif // _K_PARTITIONING_DISK_DEVICE_SYSTEM_H