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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
/* gdu-linux-md-drive.h
*
* Copyright (C) 2007 David Zeuthen
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#if !defined (__GDU_INSIDE_GDU_H) && !defined (GDU_COMPILATION)
#error "Only <gdu/gdu.h> can be included directly, this file may disappear or change contents."
#endif
#ifndef __GDU_LINUX_MD_DRIVE_H
#define __GDU_LINUX_MD_DRIVE_H
#include <gdu/gdu-types.h>
#include <gdu/gdu-callbacks.h>
#include <gdu/gdu-drive.h>
G_BEGIN_DECLS
#define GDU_TYPE_LINUX_MD_DRIVE (gdu_linux_md_drive_get_type ())
#define GDU_LINUX_MD_DRIVE(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), GDU_TYPE_LINUX_MD_DRIVE, GduLinuxMdDrive))
#define GDU_LINUX_MD_DRIVE_CLASS(k) (G_TYPE_CHECK_CLASS_CAST ((k), GDU_LINUX_MD_DRIVE, GduLinuxMdDriveClass))
#define GDU_IS_LINUX_MD_DRIVE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), GDU_TYPE_LINUX_MD_DRIVE))
#define GDU_IS_LINUX_MD_DRIVE_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), GDU_TYPE_LINUX_MD_DRIVE))
#define GDU_LINUX_MD_DRIVE_GET_CLASS(k) (G_TYPE_INSTANCE_GET_CLASS ((k), GDU_TYPE_LINUX_MD_DRIVE, GduLinuxMdDriveClass))
typedef struct _GduLinuxMdDriveClass GduLinuxMdDriveClass;
typedef struct _GduLinuxMdDrivePrivate GduLinuxMdDrivePrivate;
struct _GduLinuxMdDrive
{
GduDrive parent;
/*< private >*/
GduLinuxMdDrivePrivate *priv;
};
struct _GduLinuxMdDriveClass
{
GduDriveClass parent_class;
};
/**
* GduLinuxMdDriveSlaveFlags:
* @GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_NONE: No flags are set.
* @GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_NOT_ATTACHED: If set, the slave is
* not part of the array but appears as a child only because the UUID
* on the device matches that of the array. Is also set if the array
* does not exist.
* @GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_FAULTY: Device has been kick from
* active use due to a detected fault.
* @GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_IN_SYNC: Device is a fully in-sync
* member of the array.
* @GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_WRITEMOSTLY: Device will only be
* subject to read requests if there are no other options. This
* applies only to RAID1 arrays.
* @GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_BLOCKED: Device has failed,
* metadata is "external", and the failure hasn't been acknowledged
* yet. Writes that would write to this device if it were not faulty
* are blocked.
* @GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_SPARE: Device is working, but not a
* full member. This includes spares that in the process of being
* recovered to.
*
* State for slaves of an Linux MD software raid drive. Everything but @GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_NONE
* and @GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_NOT_ATTACHED corresponds to the comma-separated strings in
* <literal>/sys/block/mdXXX/md/dev-YYY/state</literal> in sysfs. See Documentation/md.txt in the Linux
* kernel for more information.
**/
typedef enum {
GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_NONE = 0,
GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_NOT_ATTACHED = (1<<0),
GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_FAULTY = (1<<1),
GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_IN_SYNC = (1<<2),
GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_WRITEMOSTLY = (1<<3),
GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_BLOCKED = (1<<4),
GDU_LINUX_MD_DRIVE_SLAVE_FLAGS_SPARE = (1<<5),
} GduLinuxMdDriveSlaveFlags;
GType gdu_linux_md_drive_get_type (void);
const gchar *gdu_linux_md_drive_get_uuid (GduLinuxMdDrive *drive);
gboolean gdu_linux_md_drive_has_slave (GduLinuxMdDrive *drive,
GduDevice *device);
GList *gdu_linux_md_drive_get_slaves (GduLinuxMdDrive *drive);
GduLinuxMdDriveSlaveFlags gdu_linux_md_drive_get_slave_flags (GduLinuxMdDrive *drive,
GduDevice *slave);
G_END_DECLS
#endif /* __GDU_LINUX_MD_DRIVE_H */
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