* Added back and partially reimplemented the
K{Disk,File,Partitioning}System writing methods. It is now required
that the caller has marked the concerned partitions busy, hence we can
(read-)access them without needing a lock. The module interfaces will
will be changed to take advantage of the fact as well. The methods take a
disk_job_id instead of a KDiskDeviceJob* now, though I haven't quite
decided, whether we need it at all or just want to add a special
handling in the cases where notifications during the operation make
sense.
* Reimplemented the disk device write support syscalls (save
_user_move_partition() for which other module hooks are needed). They
call the KDiskSystem methods, now.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22832 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold
@@ -3,114 +3,116 @@
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* Distributed under the terms of the MIT License.
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*
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* Authors:
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* Ingo Weinhold <[email protected].de>
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* Ingo Weinhold <ingo_weinhold@gmx.de>
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*/
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#ifndef _K_DISK_DEVICE_SYSTEM_H
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#define _K_DISK_DEVICE_SYSTEM_H
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#include "disk_device_manager.h"
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struct user_disk_system_info;
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namespace BPrivate {
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namespace DiskDevice {
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//class KDiskDeviceJob;
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class KPartition;
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//! \brief Common ancestor for disk system add-on wrappers
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class KDiskSystem {
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public:
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KDiskSystem(const char *name);
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virtual ~KDiskSystem();
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KDiskSystem(const char *name);
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virtual ~KDiskSystem();
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virtual status_t Init();
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virtual status_t Init();
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// void SetID(disk_system_id id);
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disk_system_id ID() const;
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const char *Name() const;
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const char *PrettyName();
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uint32 Flags() const;
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// void SetID(disk_system_id id);
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disk_system_id ID() const;
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bool IsFileSystem() const;
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bool IsPartitioningSystem() const;
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const char* Name() const;
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const char* PrettyName();
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uint32 Flags() const;
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void GetInfo(user_disk_system_info *info);
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bool IsFileSystem() const;
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bool IsPartitioningSystem() const;
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void GetInfo(user_disk_system_info* info);
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// manager will be locked
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status_t Load(); // load/unload -- can be nested
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void Unload(); //
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bool IsLoaded() const;
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status_t Load(); // load/unload -- can be nested
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void Unload(); //
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bool IsLoaded() const;
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// Scanning
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// Device must be write locked.
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virtual float Identify(KPartition *partition, void **cookie);
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virtual status_t Scan(KPartition *partition, void *cookie);
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virtual void FreeIdentifyCookie(KPartition *partition, void *cookie);
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virtual void FreeCookie(KPartition *partition);
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virtual void FreeContentCookie(KPartition *partition);
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virtual float Identify(KPartition* partition, void** cookie);
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virtual status_t Scan(KPartition* partition, void* cookie);
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virtual void FreeIdentifyCookie(KPartition* partition,
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void* cookie);
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virtual void FreeCookie(KPartition* partition);
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virtual void FreeContentCookie(KPartition* partition);
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// Writing
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// Device should not be locked.
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// Device should not be locked, but all affected partitions are marked
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// busy, meaning that no one else is allowed to modify it (and we only,
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// if we get a write lock).
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#if 0
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virtual status_t Defragment(KPartition *partition, KDiskDeviceJob *job);
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virtual status_t Repair(KPartition *partition, bool checkOnly,
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KDiskDeviceJob *job);
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virtual status_t Resize(KPartition *partition, off_t size,
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KDiskDeviceJob *job);
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virtual status_t ResizeChild(KPartition *child, off_t size,
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KDiskDeviceJob *job);
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virtual status_t Move(KPartition *partition, off_t offset,
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KDiskDeviceJob *job);
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virtual status_t MoveChild(KPartition *child, off_t offset,
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KDiskDeviceJob *job);
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virtual status_t SetName(KPartition *partition, char *name,
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KDiskDeviceJob *job);
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virtual status_t SetContentName(KPartition *partition, char *name,
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KDiskDeviceJob *job);
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virtual status_t SetType(KPartition *partition, char *type,
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KDiskDeviceJob *job);
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virtual status_t SetParameters(KPartition *partition,
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const char *parameters,
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KDiskDeviceJob *job);
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virtual status_t SetContentParameters(KPartition *partition,
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const char *parameters,
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KDiskDeviceJob *job);
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virtual status_t Initialize(KPartition *partition, const char *name,
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const char *parameters, KDiskDeviceJob *job);
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virtual status_t CreateChild(KPartition *partition, off_t offset,
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off_t size, const char *type,
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const char *parameters, KDiskDeviceJob *job,
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KPartition **child = NULL,
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partition_id childID = -1);
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virtual status_t DeleteChild(KPartition *child, KDiskDeviceJob *job);
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// The KPartition* parameters for the writing methods are a bit `volatile',
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// since the device will not be locked, when they are called. The KPartition
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// is registered though, so that it is at least guaranteed that the object
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// won't go away.
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#endif // 0
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virtual status_t Defragment(KPartition* partition,
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disk_job_id job);
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virtual status_t Repair(KPartition* partition, bool checkOnly,
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disk_job_id job);
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virtual status_t Resize(KPartition* partition, off_t size,
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disk_job_id job);
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virtual status_t ResizeChild(KPartition* child, off_t size,
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disk_job_id job);
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virtual status_t Move(KPartition* partition, off_t offset,
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disk_job_id job);
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virtual status_t MoveChild(KPartition* child, off_t offset,
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disk_job_id job);
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virtual status_t SetName(KPartition* partition, const char* name,
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disk_job_id job);
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virtual status_t SetContentName(KPartition* partition,
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const char* name, disk_job_id job);
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virtual status_t SetType(KPartition* partition, const char* type,
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disk_job_id job);
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virtual status_t SetParameters(KPartition* partition,
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const char* parameters, disk_job_id job);
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virtual status_t SetContentParameters(KPartition* partition,
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const char* parameters, disk_job_id job);
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virtual status_t Initialize(KPartition* partition,
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const char* name, const char* parameters,
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disk_job_id job);
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virtual status_t CreateChild(KPartition* partition, off_t offset,
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off_t size, const char* type,
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const char* name, const char* parameters,
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disk_job_id job, KPartition** child = NULL,
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partition_id childID = -1);
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virtual status_t DeleteChild(KPartition* child, disk_job_id job);
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protected:
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virtual status_t LoadModule();
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virtual void UnloadModule();
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virtual status_t LoadModule();
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virtual void UnloadModule();
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status_t SetPrettyName(const char *name);
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void SetFlags(uint32 flags);
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status_t SetPrettyName(const char* name);
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void SetFlags(uint32 flags);
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static int32 _NextID();
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static int32 _NextID();
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private:
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disk_system_id fID;
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char *fName;
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char *fPrettyName;
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uint32 fFlags;
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int32 fLoadCounter;
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disk_system_id fID;
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char* fName;
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char* fPrettyName;
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uint32 fFlags;
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int32 fLoadCounter;
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static int32 fNextID;
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static int32 fNextID;
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};
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} // namespace DiskDevice
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} // namespace BPrivate
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