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/*
Copyright (c) 2006-2012 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#ifndef __COMMON_H__
#define __COMMON_H__
#include "lkowner.h"
/*dump locks format strings */
#define RANGE_FMT "type=%s, whence=%hd, start=%llu, len=%llu"
#define ENTRY_FMT "type=%s on basename=%s"
#define DUMP_GEN_FMT "pid = %llu, owner=%s, client=%p"
#define GRNTD_AT "granted at %s"
#define BLKD_AT "blocked at %s"
#define CONN_ID "connection-id=%s"
#define DUMP_BLKD_FMT DUMP_GEN_FMT", "CONN_ID", "BLKD_AT
#define DUMP_GRNTD_FMT DUMP_GEN_FMT", "CONN_ID", "GRNTD_AT
#define DUMP_BLKD_GRNTD_FMT DUMP_GEN_FMT", "CONN_ID", "BLKD_AT", "GRNTD_AT
#define ENTRY_BLKD_FMT ENTRY_FMT", "DUMP_BLKD_FMT
#define ENTRY_GRNTD_FMT ENTRY_FMT", "DUMP_GRNTD_FMT
#define ENTRY_BLKD_GRNTD_FMT ENTRY_FMT", "DUMP_BLKD_GRNTD_FMT
#define RANGE_BLKD_FMT RANGE_FMT", "DUMP_BLKD_FMT
#define RANGE_GRNTD_FMT RANGE_FMT", "DUMP_GRNTD_FMT
#define RANGE_BLKD_GRNTD_FMT RANGE_FMT", "DUMP_BLKD_GRNTD_FMT
#define SET_FLOCK_PID(flock, lock) ((flock)->l_pid = lock->client_pid)
struct _locker {
struct list_head lockers;
char *volume;
loc_t loc;
fd_t *fd;
gf_lkowner_t owner;
pid_t pid;
};
struct _lock_table {
struct list_head inodelk_lockers;
struct list_head entrylk_lockers;
gf_lock_t lock;
};
posix_lock_t *
new_posix_lock (struct gf_flock *flock, client_t *client, pid_t client_pid,
gf_lkowner_t *owner, fd_t *fd);
pl_inode_t *
pl_inode_get (xlator_t *this, inode_t *inode);
posix_lock_t *
pl_getlk (pl_inode_t *inode, posix_lock_t *lock);
int
pl_setlk (xlator_t *this, pl_inode_t *inode, posix_lock_t *lock,
int can_block);
void
grant_blocked_locks (xlator_t *this, pl_inode_t *inode);
void
posix_lock_to_flock (posix_lock_t *lock, struct gf_flock *flock);
int
locks_overlap (posix_lock_t *l1, posix_lock_t *l2);
int
same_owner (posix_lock_t *l1, posix_lock_t *l2);
void __delete_lock (pl_inode_t *, posix_lock_t *);
void __destroy_lock (posix_lock_t *);
pl_dom_list_t *
get_domain (pl_inode_t *pl_inode, const char *volume);
void
grant_blocked_inode_locks (xlator_t *this, pl_inode_t *pl_inode,
pl_dom_list_t *dom);
void
__delete_inode_lock (pl_inode_lock_t *lock);
void
__pl_inodelk_unref (pl_inode_lock_t *lock);
void
grant_blocked_entry_locks (xlator_t *this, pl_inode_t *pl_inode,
pl_entry_lock_t *unlocked, pl_dom_list_t *dom);
void pl_update_refkeeper (xlator_t *this, inode_t *inode);
int32_t
__get_inodelk_count (xlator_t *this, pl_inode_t *pl_inode, char *domname);
int32_t
get_inodelk_count (xlator_t *this, inode_t *inode, char *domname);
int32_t
__get_entrylk_count (xlator_t *this, pl_inode_t *pl_inode);
int32_t
get_entrylk_count (xlator_t *this, inode_t *inode);
void pl_trace_in (xlator_t *this, call_frame_t *frame, fd_t *fd, loc_t *loc,
int cmd, struct gf_flock *flock, const char *domain);
void pl_trace_out (xlator_t *this, call_frame_t *frame, fd_t *fd, loc_t *loc,
int cmd, struct gf_flock *flock, int op_ret, int op_errno, const char *domain);
void pl_trace_block (xlator_t *this, call_frame_t *frame, fd_t *fd, loc_t *loc,
int cmd, struct gf_flock *flock, const char *domain);
void pl_trace_flush (xlator_t *this, call_frame_t *frame, fd_t *fd);
void entrylk_trace_in (xlator_t *this, call_frame_t *frame, const char *volume,
fd_t *fd, loc_t *loc, const char *basename,
entrylk_cmd cmd, entrylk_type type);
void entrylk_trace_out (xlator_t *this, call_frame_t *frame, const char *volume,
fd_t *fd, loc_t *loc, const char *basename,
entrylk_cmd cmd, entrylk_type type,
int op_ret, int op_errno);
void entrylk_trace_block (xlator_t *this, call_frame_t *frame, const char *volume,
fd_t *fd, loc_t *loc, const char *basename,
entrylk_cmd cmd, entrylk_type type);
void
pl_print_verdict (char *str, int size, int op_ret, int op_errno);
void
pl_print_lockee (char *str, int size, fd_t *fd, loc_t *loc);
void
pl_print_locker (char *str, int size, xlator_t *this, call_frame_t *frame);
void
pl_print_inodelk (char *str, int size, int cmd, struct gf_flock *flock, const char *domain);
void
pl_trace_release (xlator_t *this, fd_t *fd);
unsigned long
fd_to_fdnum (fd_t *fd);
fd_t *
fd_from_fdnum (posix_lock_t *lock);
int
pl_reserve_setlk (xlator_t *this, pl_inode_t *pl_inode, posix_lock_t *lock,
int can_block);
int
reservelks_equal (posix_lock_t *l1, posix_lock_t *l2);
int
pl_verify_reservelk (xlator_t *this, pl_inode_t *pl_inode,
posix_lock_t *lock, int can_block);
int
pl_reserve_unlock (xlator_t *this, pl_inode_t *pl_inode, posix_lock_t *reqlock);
uint32_t
check_entrylk_on_basename (xlator_t *this, inode_t *parent, char *basename);
int32_t
pl_add_locker (struct _lock_table *table, const char *volume,
loc_t *loc,
fd_t *fd,
pid_t pid,
gf_lkowner_t *owner,
glusterfs_fop_t type);
int32_t
pl_del_locker (struct _lock_table *table, const char *volume,
loc_t *loc,
fd_t *fd,
gf_lkowner_t *owner,
glusterfs_fop_t type);
struct _lock_table *
pl_lock_table_new (void);
#endif /* __COMMON_H__ */
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