| /* |
| * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved. |
| * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved. |
| * |
| * This file is part of LVM2. |
| * |
| * This copyrighted material is made available to anyone wishing to use, |
| * modify, copy, or redistribute it subject to the terms and conditions |
| * of the GNU Lesser General Public License v.2.1. |
| * |
| * You should have received a copy of the GNU Lesser General Public License |
| * along with this program; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "metadata.h" |
| #include "config.h" |
| |
| typedef int (*lock_resource_fn) (struct cmd_context * cmd, const char *resource, |
| uint32_t flags, const struct logical_volume *lv); |
| typedef int (*query_resource_fn) (const char *resource, const char *node, int *mode); |
| |
| typedef void (*fin_lock_fn) (void); |
| typedef void (*reset_lock_fn) (void); |
| |
| #define LCK_PRE_MEMLOCK 0x00000001 /* Is memlock() needed before calls? */ |
| #define LCK_CLUSTERED 0x00000002 |
| #define LCK_SUPPORTS_REMOTE_QUERIES 0x00000004 |
| |
| struct locking_type { |
| uint32_t flags; |
| lock_resource_fn lock_resource; |
| query_resource_fn query_resource; |
| |
| reset_lock_fn reset_locking; |
| fin_lock_fn fin_locking; |
| }; |
| |
| /* |
| * Locking types |
| */ |
| void init_no_locking(struct locking_type *locking, struct cmd_context *cmd, |
| int suppress_messages); |
| |
| void init_dummy_locking(struct locking_type *locking, struct cmd_context *cmd, |
| int suppress_messages); |
| |
| int init_readonly_locking(struct locking_type *locking, struct cmd_context *cmd, |
| int suppress_messages); |
| |
| int init_file_locking(struct locking_type *locking, struct cmd_context *cmd, |
| int suppress_messages); |
| |
| int init_external_locking(struct locking_type *locking, struct cmd_context *cmd, |
| int suppress_messages); |
| |
| int init_cluster_locking(struct locking_type *locking, struct cmd_context *cmd, |
| int suppress_messages); |