47f39c93cb
VFS's interface, so that a file system only has to implement one interface. As a side effect, the automatic file system detection may now work (not yet tested, though). git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12786 a95241bf-73f2-0310-859d-f6bbb57e9c96
127 lines
3.5 KiB
C
127 lines
3.5 KiB
C
// disk_device_manager.h
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//
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// C API exported by the disk device manager.
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// Currently only functions of interest for partition modules/FS add-ons
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// are considered.
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#ifndef _DISK_DEVICE_MANAGER_H
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#define _DISK_DEVICE_MANAGER_H
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#include <Drivers.h>
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#include <storage/DiskDeviceDefs.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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// C API partition representation
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// Fields marked [sys] are set by the system and are not to be changed by
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// the disk system modules.
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typedef struct partition_data {
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partition_id id; // [sys]
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off_t offset;
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off_t size;
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off_t content_size;
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uint32 block_size;
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int32 child_count;
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int32 index; // [sys]
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uint32 status;
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uint32 flags;
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dev_t volume; // [sys]
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void *mount_cookie; // [sys]
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char *name; // max: B_OS_NAME_LENGTH
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char *content_name; //
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char *type; //
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const char *content_type; // [sys]
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char *parameters;
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char *content_parameters;
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void *cookie;
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void *content_cookie;
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} partition_data;
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// C API disk device representation
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typedef struct disk_device_data {
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partition_id id; // equal to that of the root partition
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uint32 flags;
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char *path;
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device_geometry geometry;
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} disk_device_data;
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// C API partitionable space representation
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typedef struct partitionable_space_data {
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off_t offset;
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off_t size;
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} partitionable_space_data;
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// operations on partitions
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enum {
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B_PARTITION_DEFRAGMENT,
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B_PARTITION_REPAIR,
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B_PARTITION_RESIZE,
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B_PARTITION_RESIZE_CHILD,
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B_PARTITION_MOVE,
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B_PARTITION_MOVE_CHILD,
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B_PARTITION_SET_NAME,
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B_PARTITION_SET_CONTENT_NAME,
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B_PARTITION_SET_TYPE,
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B_PARTITION_SET_PARAMETERS,
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B_PARTITION_SET_CONTENT_PARAMETERS,
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B_PARTITION_INITIALIZE,
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B_PARTITION_CREATE_CHILD,
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B_PARTITION_DELETE_CHILD,
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};
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// disk device job cancel status
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enum {
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B_DISK_DEVICE_JOB_CONTINUE,
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B_DISK_DEVICE_JOB_CANCEL,
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B_DISK_DEVICE_JOB_REVERSE,
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};
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// disk device locking
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disk_device_data *write_lock_disk_device(partition_id partitionID);
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void write_unlock_disk_device(partition_id partitionID);
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disk_device_data *read_lock_disk_device(partition_id partitionID);
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void read_unlock_disk_device(partition_id partitionID);
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// parameter is the ID of any partition on the device
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// getting disk devices/partitions by path
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// (no locking required)
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int32 find_disk_device(const char *path);
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int32 find_partition(const char *path);
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// disk device/partition read access
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// (read lock required)
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disk_device_data *get_disk_device(partition_id partitionID);
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partition_data *get_partition(partition_id partitionID);
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partition_data *get_parent_partition(partition_id partitionID);
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partition_data *get_child_partition(partition_id partitionID, int32 index);
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// partition write access
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// (write lock required)
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partition_data *create_child_partition(partition_id partitionID, int32 index,
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partition_id childID);
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// childID is an optional input parameter -- -1 to be ignored
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bool delete_partition(partition_id partitionID);
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void partition_modified(partition_id partitionID);
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// tells the disk device manager, that the parition has been modified
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// disk systems
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disk_system_id find_disk_system(const char *name);
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// jobs
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bool update_disk_device_job_progress(disk_job_id jobID, float progress);
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bool update_disk_device_job_extra_progress(disk_job_id jobID,
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const char *info);
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bool set_disk_device_job_error_message(disk_job_id jobID, const char *message);
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uint32 update_disk_device_job_interrupt_properties(disk_job_id jobID,
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uint32 interruptProperties);
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// returns one of B_DISK_DEVICE_JOB_{CONTINUE,CANCEL,REVERSE}
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#ifdef __cplusplus
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}
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#endif
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#endif // _DISK_DEVICE_MANAGER_H
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