167 lines
5.7 KiB
C++
167 lines
5.7 KiB
C++
//----------------------------------------------------------------------
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// This software is part of the OpenBeOS distribution and is covered
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// by the OpenBeOS license.
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//---------------------------------------------------------------------
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#ifndef _DISK_DEVICE_ROSTER_H
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#define _DISK_DEVICE_ROSTER_H
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#include <image.h>
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#include <DiskDeviceDefs.h>
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#include <Messenger.h>
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#include <SupportDefs.h>
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class BDirectory;
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class BDiskDevice;
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class BDiskDeviceJob;
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class BDiskDeviceVisiting;
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class BDiskDeviceVisitor;
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class BDiskScannerPartitionAddOn;
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class BDiskSystem;
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class BPartition;
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namespace BPrivate {
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class AddOnImage;
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}
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// watchable events
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enum {
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// Basic masks
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B_DEVICE_REQUEST_MOUNT_POINT = 0x0001, // mount point changes
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B_DEVICE_REQUEST_MOUNTING = 0x0002, // mounting/unmounting
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B_DEVICE_REQUEST_PARTITION = 0x0004, // partition changes
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B_DEVICE_REQUEST_DEVICE = 0x0008, // device changes (media changes)
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B_DEVICE_REQUEST_DEVICE_LIST = 0x0010, // device additions/removals
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B_DEVICE_REQUEST_JOB_LIST = 0x0020, // job addition/initiation/cancellation/completion
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B_DEVICE_REQUEST_JOB_SIMPLE_PROGRESS = 0x0040, // simple job progress (i.e. "% complete" only)
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B_DEVICE_REQUEST_JOB_EXTRA_PROGRESS = 0x0080, // extra info on job progress (no "% complete" info)
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// Combination masks
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B_DEVICE_REQUEST_JOB_COMPLETE_PROGRESS = 0x00C0, // complete job progress info
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B_DEVICE_REQUEST_ALL = 0xffff, // all events
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};
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// notification message "what" field
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// TODO: move to app/AppDefs.h
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enum {
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B_DEVICE_UPDATE = 'DUPD'
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};
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// notification message "event" field values
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enum {
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B_DEVICE_MOUNT_POINT_MOVED, // mount point moved/renamed
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B_DEVICE_PARTITION_MOUNTED, // partition mounted
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B_DEVICE_PARTITION_UNMOUNTED, // partition unmounted
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B_DEVICE_PARTITION_INITIALIZED, // partition initialized
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B_DEVICE_PARTITION_RESIZED, // partition resized
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B_DEVICE_PARTITION_MOVED, // partition moved
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B_DEVICE_PARTITION_CREATED, // partition created
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B_DEVICE_PARTITION_DELETED, // partition deleted
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B_DEVICE_PARTITION_DEFRAGMENTED, // partition defragmented
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B_DEVICE_PARTITION_REPAIRED, // partition repaired
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B_DEVICE_MEDIA_CHANGED, // media changed
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B_DEVICE_ADDED, // device added
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B_DEVICE_REMOVED, // device removed
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B_DEVICE_JOB_SCHEDULED, // job added
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B_DEVICE_JOB_INITIATED, // job initiated
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B_DEVICE_JOB_CANCELED, // job canceled
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B_DEVICE_JOB_FINISHED, // job finished
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B_DEVICE_JOB_SIMPLE_PROGRESS, // job percent complete progress
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B_DEVICE_JOB_EXTRA_PROGRESS, // extended job progress info
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};
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// notification message "cause" field values
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enum {
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// helpful causes
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B_DEVICE_CAUSE_MEDIA_CHANGED,
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B_DEVICE_CAUSE_FORMATTED, // is this still applicable?
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B_DEVICE_CAUSE_PARTITIONED, // is this still applicable?
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B_DEVICE_CAUSE_INITIALIZED, // is this still applicable?
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// unknown cause
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B_DEVICE_CAUSE_UNKNOWN,
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// for internal use only (e.g.: partition added, because device added)
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B_DEVICE_CAUSE_PARENT_CHANGED,
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};
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class BDiskDeviceRoster {
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public:
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BDiskDeviceRoster();
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~BDiskDeviceRoster();
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status_t GetNextDevice(BDiskDevice *device);
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status_t RewindDevices();
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status_t GetNextDiskSystem(BDiskSystem *system);
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status_t RewindDiskSystems();
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// Active jobs are those that are scheduled or in-progress
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status_t GetNextActiveJob(BDiskDeviceJob *job);
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status_t RewindActiveJobs();
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partition_id RegisterFileDevice(const char *filename);
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// publishes: /dev/disk/virtual/files/<disk device ID>/raw
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status_t UnregisterFileDevice(const char *filename);
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status_t UnregisterFileDevice(partition_id device);
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bool VisitEachDevice(BDiskDeviceVisitor *visitor,
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BDiskDevice *device = NULL);
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bool VisitEachPartition(BDiskDeviceVisitor *visitor,
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BDiskDevice *device = NULL,
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BPartition **partition = NULL);
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bool VisitEachMountedPartition(BDiskDeviceVisitor *visitor,
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BDiskDevice *device = NULL,
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BPartition **partition = NULL);
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bool VisitEachMountablePartition(BDiskDeviceVisitor *visitor,
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BDiskDevice *device = NULL,
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BPartition **partition = NULL);
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status_t GetDeviceWithID(partition_id id, BDiskDevice *device) const;
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status_t GetPartitionWithID(partition_id id, BDiskDevice *device,
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BPartition **partition) const;
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status_t GetDeviceForPath(const char *filename, BDiskDevice *device);
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status_t GetPartitionForPath(const char *filename, BDiskDevice *device,
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BPartition **partition);
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status_t StartWatching(BMessenger target,
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uint32 eventMask = B_DEVICE_REQUEST_ALL);
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status_t StartWatchingJob(BDiskDeviceJob *job, BMessenger target,
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uint32 eventMask = B_DEVICE_REQUEST_JOB_COMPLETE_PROGRESS);
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// TODO: Maybe better a BDiskDeviceJob::{Start,Stop}Watching()?
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status_t StopWatching(BMessenger target);
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private:
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#if 0
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status_t _GetObjectWithID(const char *fieldName, partition_id id,
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BDiskDevice *device) const;
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// TODO: Introduce iterators instead of these functions.
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static status_t _GetNextAddOn(BDirectory **directory, int32 *index,
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const char *subdir,
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BPrivate::AddOnImage *image);
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static status_t _GetNextAddOn(BDirectory *directory,
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BPrivate::AddOnImage *image);
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static status_t _GetNextAddOnDir(BPath *path, int32 *index,
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const char *subdir);
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static status_t _GetNextAddOnDir(BDirectory **directory, int32 *index,
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const char *subdir);
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static status_t _LoadPartitionAddOn(const char *partitioningSystem,
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BPrivate::AddOnImage *image,
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BDiskScannerPartitionAddOn **addOn);
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#endif // 0
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private:
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int32 fDeviceCookie;
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int32 fDiskSystemCookie;
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int32 fJobCookie;
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// BDirectory *fPartitionAddOnDir;
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// BDirectory *fFSAddOnDir;
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// int32 fPartitionAddOnDirIndex;
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// int32 fFSAddOnDirIndex;
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};
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#endif // _DISK_DEVICE_ROSTER_H
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