1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 #ifndef CEPH_CLIENT_INODE_H
5 #define CEPH_CLIENT_INODE_H
9 #include "include/types.h"
10 #include "include/xlist.h"
12 #include "mds/mdstypes.h" // hrm
14 #include "osdc/ObjectCacher.h"
15 #include "include/assert.h"
19 #include "Delegation.h"
27 class ceph_lock_state_t
;
35 xlist
<Cap
*>::item cap_item
;
40 unsigned wanted
; // as known to mds.
41 uint64_t seq
, issue_seq
;
42 __u32 mseq
; // migration seq
44 UserPerm latest_perms
;
46 Cap() : session(NULL
), inode(NULL
), cap_item(this), cap_id(0), issued(0),
47 implemented(0), wanted(0), seq(0), issue_seq(0), mseq(0), gen(0),
50 void dump(Formatter
*f
) const;
54 //snapid_t follows; // map key
60 utime_t ctime
, btime
, mtime
, atime
;
61 version_t time_warp_seq
;
66 map
<string
,bufferptr
> xattrs
;
67 version_t xattr_version
;
69 bufferlist inline_data
;
70 version_t inline_version
;
72 bool writing
, dirty_data
;
75 explicit CapSnap(Inode
*i
)
76 : in(i
), issued(0), dirty(0), size(0), time_warp_seq(0), change_attr(0),
77 mode(0), uid(0), gid(0), xattr_version(0), inline_version(0),
78 writing(false), dirty_data(false), flush_tid(0)
81 void dump(Formatter
*f
) const;
86 #define I_DIR_ORDERED 2
87 #define I_CAP_DROPPED 4
88 #define I_SNAPDIR_OPEN 8
93 // -- the actual inode --
94 inodeno_t ino
; // ORDER DEPENDENCY: oset
98 uint32_t rdev
; // if special file
100 // affected by any inode change...
101 utime_t ctime
; // inode change time
102 utime_t btime
; // birth time
104 // perm (namespace permissions)
112 // file (data access)
113 ceph_dir_layout dir_layout
;
114 file_layout_t layout
;
115 uint64_t size
; // on directory, # dentries
116 uint32_t truncate_seq
;
117 uint64_t truncate_size
;
118 utime_t mtime
; // file data modify time.
119 utime_t atime
; // file data access time.
120 uint32_t time_warp_seq
; // count of (potential) mtime/atime timewarps (i.e., utimes())
121 uint64_t change_attr
;
123 uint64_t max_size
; // max size we can write to
125 // dirfrag, recursive accountin
130 version_t version
; // auth only
131 version_t xattr_version
;
134 version_t inline_version
;
135 bufferlist inline_data
;
137 bool is_root() const { return ino
== MDS_INO_ROOT
; }
138 bool is_symlink() const { return (mode
& S_IFMT
) == S_IFLNK
; }
139 bool is_dir() const { return (mode
& S_IFMT
) == S_IFDIR
; }
140 bool is_file() const { return (mode
& S_IFMT
) == S_IFREG
; }
142 bool has_dir_layout() const {
143 return layout
!= file_layout_t();
146 __u32
hash_dentry_name(const string
&dn
) {
147 int which
= dir_layout
.dl_dir_hash
;
149 which
= CEPH_STR_HASH_LINUX
;
150 assert(ceph_str_hash_valid(which
));
151 return ceph_str_hash(which
, dn
.data(), dn
.length());
158 bool is_complete_and_ordered() {
159 static const unsigned wants
= I_COMPLETE
| I_DIR_ORDERED
;
160 return (flags
& wants
) == wants
;
163 // about the dir (if this is one!)
164 Dir
*dir
; // if i'm a dir.
165 fragtree_t dirfragtree
;
166 set
<int> dir_contacts
;
167 uint64_t dir_release_count
, dir_ordered_count
;
168 bool dir_hashed
, dir_replicated
;
171 map
<mds_rank_t
, Cap
*> caps
; // mds -> Cap
173 int64_t cap_dirtier_uid
;
174 int64_t cap_dirtier_gid
;
175 unsigned dirty_caps
, flushing_caps
;
176 std::map
<ceph_tid_t
, int> flushing_cap_tids
;
177 int shared_gen
, cache_gen
;
178 int snap_caps
, snap_cap_refs
;
179 utime_t hold_caps_until
;
180 xlist
<Inode
*>::item delay_cap_item
, dirty_cap_item
, flushing_cap_item
;
182 SnapRealm
*snaprealm
;
183 xlist
<Inode
*>::item snaprealm_item
;
184 InodeRef snapdir_parent
; // only if we are a snapdir inode
185 map
<snapid_t
,CapSnap
> cap_snaps
; // pending flush to mds
187 //int open_by_mode[CEPH_FILE_MODE_NUM];
188 map
<int,int> open_by_mode
;
189 map
<int,int> cap_refs
;
191 ObjectCacher::ObjectSet oset
; // ORDER DEPENDENCY: ino
193 uint64_t reported_size
, wanted_max_size
, requested_max_size
;
195 int _ref
; // ref count. 1 for each dentry, fh that links to me.
196 int ll_ref
; // separate ref count for ll client
197 set
<Dentry
*> dn_set
; // if i'm linked to a dentry.
198 string symlink
; // symlink content, if it's a symlink
199 map
<string
,bufferptr
> xattrs
;
200 map
<frag_t
,int> fragmap
; // known frag -> mds mappings
202 list
<Cond
*> waitfor_caps
;
203 list
<Cond
*> waitfor_commit
;
204 list
<Cond
*> waitfor_deleg
;
206 Dentry
*get_first_parent() {
207 assert(!dn_set
.empty());
208 return *dn_set
.begin();
211 void make_long_path(filepath
& p
);
212 void make_nosnap_relative_path(filepath
& p
);
224 void ll_put(int n
=1) {
230 ceph_lock_state_t
*fcntl_locks
;
231 ceph_lock_state_t
*flock_locks
;
233 list
<Delegation
> delegations
;
235 xlist
<MetaRequest
*> unsafe_ops
;
239 Inode(Client
*c
, vinodeno_t vino
, file_layout_t
*newlayout
)
240 : client(c
), ino(vino
.ino
), snapid(vino
.snapid
), faked_ino(0),
241 rdev(0), mode(0), uid(0), gid(0), nlink(0),
242 size(0), truncate_seq(1), truncate_size(-1),
243 time_warp_seq(0), change_attr(0), max_size(0), version(0),
244 xattr_version(0), inline_version(0), flags(0),
245 dir(0), dir_release_count(1), dir_ordered_count(1),
246 dir_hashed(false), dir_replicated(false), auth_cap(NULL
),
247 cap_dirtier_uid(-1), cap_dirtier_gid(-1),
248 dirty_caps(0), flushing_caps(0), shared_gen(0), cache_gen(0),
249 snap_caps(0), snap_cap_refs(0),
250 delay_cap_item(this), dirty_cap_item(this), flushing_cap_item(this),
251 snaprealm(0), snaprealm_item(this),
252 oset((void *)this, newlayout
->pool_id
, this->ino
),
253 reported_size(0), wanted_max_size(0), requested_max_size(0),
254 _ref(0), ll_ref(0), dn_set(),
255 fcntl_locks(NULL
), flock_locks(NULL
)
257 memset(&dir_layout
, 0, sizeof(dir_layout
));
261 vinodeno_t
vino() const { return vinodeno_t(ino
, snapid
); }
264 bool operator() (Inode
* const & left
, Inode
* const & right
) {
265 if (left
->ino
.val
< right
->ino
.val
) {
266 return (left
->snapid
.val
< right
->snapid
.val
);
272 bool check_mode(const UserPerm
& perms
, unsigned want
);
275 void get_open_ref(int mode
);
276 bool put_open_ref(int mode
);
278 void get_cap_ref(int cap
);
279 int put_cap_ref(int cap
);
281 bool cap_is_valid(Cap
* cap
) const;
282 int caps_issued(int *implemented
= 0) const;
283 void touch_cap(Cap
*cap
);
284 void try_touch_cap(mds_rank_t mds
);
285 bool caps_issued_mask(unsigned mask
, bool allow_impl
=false);
287 int caps_file_wanted();
289 int caps_mds_wanted();
291 const UserPerm
*get_best_perms();
293 bool have_valid_size();
296 void add_fh(Fh
*f
) {fhs
.insert(f
);}
297 void rm_fh(Fh
*f
) {fhs
.erase(f
);}
298 void set_async_err(int r
);
299 void dump(Formatter
*f
) const;
301 void break_all_delegs() { break_deleg(false); };
303 void recall_deleg(bool skip_read
);
304 bool has_recalled_deleg();
305 int set_deleg(Fh
*fh
, unsigned type
, ceph_deleg_cb_t cb
, void *priv
);
306 void unset_deleg(Fh
*fh
);
308 void mark_caps_dirty(int caps
);
309 void mark_caps_clean();
311 // how many opens for write on this Inode?
312 long open_count_for_write()
314 return (long)(open_by_mode
[CEPH_FILE_MODE_RDWR
] +
315 open_by_mode
[CEPH_FILE_MODE_WR
]);
318 // how many opens of any sort on this inode?
321 return (long) std::accumulate(open_by_mode
.begin(), open_by_mode
.end(), 0,
322 [] (int value
, const std::map
<int, int>::value_type
& p
)
323 { return value
+ p
.second
; });
326 void break_deleg(bool skip_read
);
327 bool delegations_broken(bool skip_read
);
331 ostream
& operator<<(ostream
&out
, const Inode
&in
);