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/*
Copyright (c) 2006-2012, 2015-2016 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__
/*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)
#define PL_STACK_UNWIND_AND_FREE(__local, fop, frame, op_ret, params...) \
do { \
frame->local = NULL; \
STACK_UNWIND_STRICT(fop, frame, op_ret, params); \
if (__local) { \
if (__local->inodelk_dom_count_req) \
data_unref(__local->inodelk_dom_count_req); \
loc_wipe(&__local->loc[0]); \
loc_wipe(&__local->loc[1]); \
if (__local->fd) \
fd_unref(__local->fd); \
if (__local->inode) \
inode_unref(__local->inode); \
if (__local->xdata) { \
dict_unref(__local->xdata); \
__local->xdata = NULL; \
} \
mem_put(__local); \
} \
} while (0)
posix_lock_t *
new_posix_lock(struct gf_flock *flock, client_t *client, pid_t client_pid,
gf_lkowner_t *owner, fd_t *fd, uint32_t lk_flags, int blocking,
int32_t *op_errno);
pl_inode_t *
pl_inode_get(xlator_t *this, inode_t *inode, pl_local_t *local);
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);
int
pl_lock_preempt(pl_inode_t *pl_inode, posix_lock_t *reqlock);
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(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, struct timespec *now,
struct list_head *contend);
void
inodelk_contention_notify(xlator_t *this, struct list_head *contend);
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_dom_list_t *dom, struct timespec *now,
struct list_head *contend);
void
entrylk_contention_notify(xlator_t *this, struct list_head *contend);
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);
int32_t
check_entrylk_on_basename(xlator_t *this, inode_t *parent, char *basename);
void
__pl_inodelk_unref(pl_inode_lock_t *lock);
void
__pl_entrylk_unref(pl_entry_lock_t *lock);
int
pl_metalock_is_active(pl_inode_t *pl_inode);
void
__pl_queue_lock(pl_inode_t *pl_inode, posix_lock_t *reqlock);
gf_boolean_t
pl_does_monkey_want_stuck_lock();
gf_boolean_t
pl_is_mandatory_locking_enabled(pl_inode_t *pl_inode);
void
pl_clean_local(pl_local_t *local);
int
pl_local_init(call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd);
gf_boolean_t
pl_is_lk_owner_valid(gf_lkowner_t *owner, client_t *client);
#endif /* __COMMON_H__ */
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