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https://github.com/checkpoint-restore/criu.git
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2082e8faf0
Signed-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
#ifndef __FILE_LOCK_H__
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#define __FILE_LOCK_H__
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#include "list.h"
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#include "protobuf.h"
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#include "protobuf/file-lock.pb-c.h"
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#define FL_POSIX 1
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#define FL_FLOCK 2
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/* for posix fcntl() and lockf() */
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#ifndef F_RDLCK
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#define F_RDLCK 0
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#define F_WRLCK 1
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#define F_UNLCK 2
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#endif
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/* operations for bsd flock(), also used by the kernel implementation */
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#define LOCK_SH 1 /* shared lock */
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#define LOCK_EX 2 /* exclusive lock */
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#define LOCK_NB 4 /* or'd with one of the above to prevent
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blocking */
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#define LOCK_UN 8 /* remove lock */
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#define LOCK_MAND 32 /* This is a mandatory flock ... */
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#define LOCK_READ 64 /* which allows concurrent read operations */
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#define LOCK_WRITE 128 /* which allows concurrent write operations */
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#define LOCK_RW 192 /* which allows concurrent read & write ops */
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struct file_lock {
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long long fl_id;
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char fl_flag[10];
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char fl_type[15];
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char fl_option[10];
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pid_t fl_owner;
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int maj, min;
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unsigned long i_no;
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long long start;
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char end[32];
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struct list_head list; /* list of all file locks */
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};
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extern struct list_head file_lock_list;
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extern struct file_lock *alloc_file_lock(void);
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extern void free_file_locks(void);
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struct parasite_ctl;
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struct parasite_drain_fd;
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extern int dump_task_file_locks(struct parasite_ctl *ctl,
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struct cr_fdset *fdset, struct parasite_drain_fd *dfds);
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extern int prepare_file_locks(int pid);
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#define OPT_FILE_LOCKS "file-locks"
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#endif /* __FILE_LOCK_H__ */
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