/usr/include/libdlmcontrol.h is in libdlmcontrol-dev 4.0.1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright 2004-2012 Red Hat, Inc.
*
* 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 General Public License v2 or (at your option) any later version.
*/
#ifndef _LIBDLMCONTROL_H_
#define _LIBDLMCONTROL_H_
#define DLMC_DUMP_SIZE (1024 * 1024)
#define DLMC_NF_MEMBER 0x00000001 /* node is member in cg */
#define DLMC_NF_START 0x00000002 /* start message recvd for cg */
#define DLMC_NF_DISALLOWED 0x00000004 /* node disallowed in cg */
#define DLMC_NF_NEED_FENCING 0x00000008
#define DLMC_NF_CHECK_FS 0x00000010
struct dlmc_node {
int nodeid;
uint32_t flags;
uint32_t added_seq;
uint32_t removed_seq;
int fail_reason;
uint64_t fail_walltime;
uint64_t fail_monotime;
};
#define DLMC_LS_WAIT_RINGID 1
#define DLMC_LS_WAIT_QUORUM 2
#define DLMC_LS_WAIT_FENCING 3
#define DLMC_LS_WAIT_FSDONE 4
struct dlmc_change {
int member_count;
int joined_count;
int remove_count;
int failed_count;
int wait_condition; /* DLMC_LS_WAIT or needed message count */
int wait_messages; /* 0 no, 1 yes */
uint32_t seq;
uint32_t combined_seq;
};
#define DLMC_LF_JOINING 0x00000001
#define DLMC_LF_LEAVING 0x00000002
#define DLMC_LF_KERNEL_STOPPED 0x00000004
#define DLMC_LF_FS_REGISTERED 0x00000008
#define DLMC_LF_NEED_PLOCKS 0x00000010
#define DLMC_LF_SAVE_PLOCKS 0x00000020
struct dlmc_lockspace {
struct dlmc_change cg_prev; /* completed change (started_change) */
struct dlmc_change cg_next; /* in-progress change (changes list) */
uint32_t flags;
uint32_t global_id;
char name[DLM_LOCKSPACE_LEN+1];
};
/* dlmc_lockspace_nodes() types
MEMBERS: members in completed (prev) change,
zero if there's no completed (prev) change
NEXT: members in in-progress (next) change,
zero if there's no in-progress (next) change
ALL: NEXT + nonmembers if there's an in-progress (next) change,
MEMBERS + nonmembers if there's no in-progress (next) change, but
there is a completed (prev) change
nonmembers if there's no in-progress (next) or completed (prev)
change (possible?)
dlmc_node_info() returns info for in-progress (next) change, if one exists,
otherwise it returns info for completed (prev) change.
*/
#define DLMC_NODES_ALL 1
#define DLMC_NODES_MEMBERS 2
#define DLMC_NODES_NEXT 3
#define DLMC_STATUS_VERBOSE 0x00000001
int dlmc_dump_debug(char *buf);
int dlmc_dump_config(char *buf);
int dlmc_dump_log_plock(char *buf);
int dlmc_dump_plocks(char *name, char *buf);
int dlmc_lockspace_info(char *lsname, struct dlmc_lockspace *ls);
int dlmc_node_info(char *lsname, int nodeid, struct dlmc_node *node);
int dlmc_lockspaces(int max, int *count, struct dlmc_lockspace *lss);
int dlmc_lockspace_nodes(char *lsname, int type, int max, int *count,
struct dlmc_node *nodes);
int dlmc_print_status(uint32_t flags);
#define DLMC_RESULT_REGISTER 1
#define DLMC_RESULT_NOTIFIED 2
int dlmc_fs_connect(void);
void dlmc_fs_disconnect(int fd);
int dlmc_fs_register(int fd, char *name);
int dlmc_fs_unregister(int fd, char *name);
int dlmc_fs_notified(int fd, char *name, int nodeid);
int dlmc_fs_result(int fd, char *name, int *type, int *nodeid, int *result);
int dlmc_deadlock_check(char *name);
int dlmc_fence_ack(char *name);
#endif
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