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/*
Copyright (c) 2015, 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 _UPCALL_UTILS_H
#define _UPCALL_UTILS_H
#include "iatt.h"
#include "compat-uuid.h"
#include "compat.h"
/* Flags sent for cache_invalidation */
#define UP_NLINK 0x00000001 /* update nlink */
#define UP_MODE 0x00000002 /* update mode and ctime */
#define UP_OWN 0x00000004 /* update mode,uid,gid and ctime */
#define UP_SIZE 0x00000008 /* update fsize */
#define UP_TIMES 0x00000010 /* update all times */
#define UP_ATIME 0x00000020 /* update atime only */
#define UP_PERM 0x00000040 /* update fields needed for permission
checking */
#define UP_RENAME 0x00000080 /* this is a rename op - delete the cache
entry */
#define UP_FORGET 0x00000100 /* inode_forget on server side -
invalidate the cache entry */
#define UP_PARENT_TIMES 0x00000200 /* update parent dir times */
#define UP_XATTR 0x00000400 /* update the xattrs and ctime */
#define UP_XATTR_RM 0x00000800 /* Remove the xattrs and update ctime */
#define UP_EXPLICIT_LOOKUP 0x00001000 /* Request an explicit lookup */
#define UP_INVAL_ATTR 0x00002000 /* Request to invalidate iatt and xatt */
/* for fops - open, read, lk, */
#define UP_UPDATE_CLIENT (UP_ATIME)
/* for fop - write, truncate */
#define UP_WRITE_FLAGS (UP_SIZE | UP_TIMES)
/* for fop - setattr */
#define UP_ATTR_FLAGS (UP_SIZE | UP_TIMES | UP_OWN | UP_MODE | \
UP_PERM)
/* for fop - rename */
#define UP_RENAME_FLAGS (UP_RENAME)
/* to invalidate parent directory entries for fops -rename, unlink, rmdir,
* mkdir, create */
#define UP_PARENT_DENTRY_FLAGS (UP_PARENT_TIMES)
/* for fop - unlink, link, rmdir, mkdir */
#define UP_NLINK_FLAGS (UP_NLINK | UP_TIMES)
#define IATT_UPDATE_FLAGS (UP_NLINK | UP_MODE | UP_OWN | UP_SIZE | \
UP_TIMES | UP_ATIME | UP_PERM)
typedef enum {
GF_UPCALL_EVENT_NULL,
GF_UPCALL_CACHE_INVALIDATION,
GF_UPCALL_RECALL_LEASE,
GF_UPCALL_INODELK_CONTENTION,
GF_UPCALL_ENTRYLK_CONTENTION,
} gf_upcall_event_t;
struct gf_upcall {
char *client_uid;
uuid_t gfid;
uint32_t event_type;
void *data;
};
struct gf_upcall_cache_invalidation {
uint32_t flags;
uint32_t expire_time_attr;
struct iatt stat;
struct iatt p_stat; /* parent dir stat */
struct iatt oldp_stat; /* oldparent dir stat */
dict_t *dict; /* For xattrs */
};
struct gf_upcall_recall_lease {
uint32_t lease_type; /* Lease type to which client can downgrade to*/
uuid_t tid; /* transaction id of the fop that caused
the recall */
dict_t *dict;
};
struct gf_upcall_inodelk_contention {
struct gf_flock flock;
pid_t pid;
const char *domain;
dict_t *xdata;
};
struct gf_upcall_entrylk_contention {
uint32_t type;
pid_t pid;
const char *name;
const char *domain;
dict_t *xdata;
};
#endif /* _UPCALL_UTILS_H */
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