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51 lines
1010 B
C
51 lines
1010 B
C
/*
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* Copyright (C) 2001 Sistina Software (UK) Limited.
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*
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* This file is released under the LGPL.
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*
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*/
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#include "metadata.h"
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#include "uuid.h"
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#include "config.h"
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int init_locking(int type, struct config_file *cf);
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void fin_locking(void);
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/*
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* LCK_VG:
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* Lock/unlock on-disk volume group data
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* Use "" to lock orphan PVs
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* char *vol holds volume group name
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*
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* LCK_LV:
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* Lock/unlock an individual logical volume
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* Also suspends/resumes the LV if it's active.
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* char *vol holds "VG_name/LV_uuid"
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*
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* FIXME: Change to something like
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* int lock_vol(struct cmd_context *cmd, const struct id *id, int flags);
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*/
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int lock_vol(struct cmd_context *cmd, const char *vol, int flags);
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/*
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* Lock type
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*/
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#define LCK_TYPE_MASK 0x000000FF
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#define LCK_NONE 0x00000000
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#define LCK_READ 0x00000001
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#define LCK_WRITE 0x00000002
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/*
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* Lock scope
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*/
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#define LCK_SCOPE_MASK 0x0000FF00
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#define LCK_VG 0x00000000
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#define LCK_LV 0x00000100
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/*
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* Lock bits
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*/
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#define LCK_NONBLOCK 0x00010000
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