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acb037657c
Set cmd->independent_metadata_areas if metadata/dirs or disk_areas in use. - Identify and record this state. Don't skip full scan when independent mdas are present even if memlock is set. - Clusters and OOM aren't supported, so no problem doing the proper scans. Avoid revalidating the label cache immediately after scanning. - A simple optimisation. Support scanning for a single VG in independent mdas. - Not used by the fix but I left it in anyway as later patches might use it.
122 lines
3.4 KiB
C
122 lines
3.4 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _LVM_TOOLCONTEXT_H
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#define _LVM_TOOLCONTEXT_H
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#include "dev-cache.h"
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#include <stdio.h>
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#include <limits.h>
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/*
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* Config options that can be changed while commands are processed
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*/
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struct config_info {
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int debug;
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int verbose;
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int test;
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int syslog;
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int activation;
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int suffix;
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int archive; /* should we archive ? */
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int backup; /* should we backup ? */
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int read_ahead; /* DM_READ_AHEAD_NONE or _AUTO */
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int udev_rules;
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int udev_sync;
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int cache_vgmetadata;
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const char *msg_prefix;
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const char *fmt_name;
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uint64_t unit_factor;
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int cmd_name; /* Show command name? */
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mode_t umask;
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char unit_type;
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char _padding[1];
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};
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struct config_tree;
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struct archive_params;
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struct backup_params;
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struct arg_values;
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/* FIXME Split into tool & library contexts */
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/* command-instance-related variables needed by library */
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struct cmd_context {
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struct dm_pool *libmem; /* For permanent config data */
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struct dm_pool *mem; /* Transient: Cleared between each command */
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const struct format_type *fmt; /* Current format to use by default */
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struct format_type *fmt_backup; /* Format to use for backups */
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struct dm_list formats; /* Available formats */
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struct dm_list segtypes; /* Available segment types */
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const char *hostname;
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const char *kernel_vsn;
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unsigned rand_seed;
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const char *cmd_line;
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struct command *command;
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char **argv;
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struct arg_values *arg_values;
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struct dm_list arg_value_groups;
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unsigned is_long_lived:1; /* Optimises persistent_filter handling */
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unsigned handles_missing_pvs:1;
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unsigned handles_unknown_segments:1;
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unsigned partial_activation:1;
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unsigned si_unit_consistency:1;
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unsigned metadata_read_only:1;
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unsigned independent_metadata_areas:1; /* Active formats have MDAs outside PVs */
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struct dev_filter *filter;
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int dump_filter; /* Dump filter when exiting? */
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struct dm_list config_files;
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int config_valid;
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struct config_tree *cft;
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struct config_tree *cft_override;
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struct config_info default_settings;
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struct config_info current_settings;
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struct archive_params *archive_params;
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struct backup_params *backup_params;
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const char *stripe_filler;
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/* List of defined tags */
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struct dm_list tags;
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int hosttags;
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char system_dir[PATH_MAX];
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char dev_dir[PATH_MAX];
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char proc_dir[PATH_MAX];
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char sysfs_dir[PATH_MAX]; /* FIXME Use global value instead. */
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};
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/*
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* system_dir may be NULL to use the default value.
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* The environment variable LVM_SYSTEM_DIR always takes precedence.
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*/
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struct cmd_context *create_toolcontext(unsigned is_long_lived,
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const char *system_dir);
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void destroy_toolcontext(struct cmd_context *cmd);
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int refresh_toolcontext(struct cmd_context *cmd);
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int refresh_filters(struct cmd_context *cmd);
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int config_files_changed(struct cmd_context *cmd);
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int init_lvmcache_orphans(struct cmd_context *cmd);
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struct format_type *get_format_by_name(struct cmd_context *cmd, const char *format);
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#endif
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