| 1 | /* $Id: HBDMgmt.h 82968 2020-02-04 10:35:17Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * VBox storage devices: Host block device management API.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2015-2020 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | */
|
|---|
| 17 |
|
|---|
| 18 | #ifndef VBOX_INCLUDED_SRC_Storage_HBDMgmt_h
|
|---|
| 19 | #define VBOX_INCLUDED_SRC_Storage_HBDMgmt_h
|
|---|
| 20 | #ifndef RT_WITHOUT_PRAGMA_ONCE
|
|---|
| 21 | # pragma once
|
|---|
| 22 | #endif
|
|---|
| 23 |
|
|---|
| 24 | #include <VBox/cdefs.h>
|
|---|
| 25 |
|
|---|
| 26 | RT_C_DECLS_BEGIN
|
|---|
| 27 |
|
|---|
| 28 | /**
|
|---|
| 29 | * Opaque host block device manager.
|
|---|
| 30 | */
|
|---|
| 31 | typedef struct HBDMGRINT *HBDMGR;
|
|---|
| 32 | /** Pointer to a block device manager. */
|
|---|
| 33 | typedef HBDMGR *PHBDMGR;
|
|---|
| 34 |
|
|---|
| 35 | /* NIL HBD manager handle. */
|
|---|
| 36 | #define NIL_HBDMGR ((HBDMGR)0)
|
|---|
| 37 |
|
|---|
| 38 | /**
|
|---|
| 39 | * Creates host block device manager.
|
|---|
| 40 | *
|
|---|
| 41 | * @returns VBox status code.
|
|---|
| 42 | * @param phHbdMgr Where to store the handle to the block device manager on success.
|
|---|
| 43 | */
|
|---|
| 44 | DECLHIDDEN(int) HBDMgrCreate(PHBDMGR phHbdMgr);
|
|---|
| 45 |
|
|---|
| 46 | /**
|
|---|
| 47 | * Destroys the given block device manager unclaiming all managed block devices.
|
|---|
| 48 | *
|
|---|
| 49 | * @returns nothing.
|
|---|
| 50 | * @param hHbdMgr The block device manager.
|
|---|
| 51 | */
|
|---|
| 52 | DECLHIDDEN(void) HBDMgrDestroy(HBDMGR hHbdMgr);
|
|---|
| 53 |
|
|---|
| 54 | /**
|
|---|
| 55 | * Returns whether a given filename resembles a block device which can
|
|---|
| 56 | * be managed by this API.
|
|---|
| 57 | *
|
|---|
| 58 | * @returns true if the given filename point to a block device manageable
|
|---|
| 59 | * by the given manager
|
|---|
| 60 | * false otherwise.
|
|---|
| 61 | * @param pszFilename The block device to check.
|
|---|
| 62 | */
|
|---|
| 63 | DECLHIDDEN(bool) HBDMgrIsBlockDevice(const char *pszFilename);
|
|---|
| 64 |
|
|---|
| 65 | /**
|
|---|
| 66 | * Prepares the given block device for use by unmounting and claiming it for exclusive use.
|
|---|
| 67 | *
|
|---|
| 68 | * @returns VBox status code.
|
|---|
| 69 | * @param hHbdMgr The block device manager.
|
|---|
| 70 | * @param pszFilename The block device to claim.
|
|---|
| 71 | */
|
|---|
| 72 | DECLHIDDEN(int) HBDMgrClaimBlockDevice(HBDMGR hHbdMgr, const char *pszFilename);
|
|---|
| 73 |
|
|---|
| 74 | /**
|
|---|
| 75 | * Unclaims the given block device.
|
|---|
| 76 | *
|
|---|
| 77 | * @returns VBox status code.
|
|---|
| 78 | * @param hHbdMgr The block device manager.
|
|---|
| 79 | * @param pszFilename The block device to unclaim.
|
|---|
| 80 | */
|
|---|
| 81 | DECLHIDDEN(int) HBDMgrUnclaimBlockDevice(HBDMGR hHbdMgr, const char *pszFilename);
|
|---|
| 82 |
|
|---|
| 83 | /**
|
|---|
| 84 | * Returns whether the given block device is claimed by the manager.
|
|---|
| 85 | *
|
|---|
| 86 | * @returns true if the block device is claimed, false otherwisw.
|
|---|
| 87 | * @param hHbdMgr The block device manager.
|
|---|
| 88 | * @param pszFilename The block device to check.
|
|---|
| 89 | */
|
|---|
| 90 | DECLHIDDEN(bool) HBDMgrIsBlockDeviceClaimed(HBDMGR hHbdMgr, const char *pszFilename);
|
|---|
| 91 |
|
|---|
| 92 | RT_C_DECLS_END
|
|---|
| 93 |
|
|---|
| 94 | #endif /* !VBOX_INCLUDED_SRC_Storage_HBDMgmt_h */
|
|---|
