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_METAREQUEST_H
5 #define CEPH_CLIENT_METAREQUEST_H
8 #include "include/types.h"
9 #include "include/xlist.h"
10 #include "include/filepath.h"
11 #include "mds/mdstypes.h"
15 #include "messages/MClientRequest.h"
16 #include "messages/MClientReply.h"
23 InodeRef _inode
, _old_inode
, _other_inode
;
24 Dentry
*_dentry
; //associated with path
25 Dentry
*_old_dentry
; //associated with path2
30 ceph_mds_request_head head
;
32 std::string alternate_name
;
34 int inode_drop
; //the inode caps this operation will drop
35 int inode_unless
; //unless we have these caps already
36 int old_inode_drop
, old_inode_unless
;
37 int dentry_drop
, dentry_unless
;
38 int old_dentry_drop
, old_dentry_unless
;
39 int other_inode_drop
, other_inode_unless
;
40 vector
<MClientRequest::Release
> cap_releases
;
42 int regetattr_mask
; // getattr mask if i need to re-stat after a traceless reply
45 mds_rank_t mds
; // who i am asking
46 mds_rank_t resend_mds
; // someone wants you to (re)send the request here
47 bool send_to_auth
; // must send to auth mds
48 __u32 sent_on_mseq
; // mseq at last submission of this request
49 int num_fwd
; // # of times i've been forwarded
51 std::atomic
<uint64_t> ref
= { 1 };
53 ceph::cref_t
<MClientReply
> reply
; // the reply
63 xlist
<MetaRequest
*>::item item
;
64 xlist
<MetaRequest
*>::item unsafe_item
;
65 xlist
<MetaRequest
*>::item unsafe_dir_item
;
66 xlist
<MetaRequest
*>::item unsafe_target_item
;
68 ceph::condition_variable
*caller_cond
; // who to take up
69 ceph::condition_variable
*dispatch_cond
; // who to kick back
70 list
<ceph::condition_variable
*> waitfor_safe
;
75 explicit MetaRequest(int op
) :
76 _dentry(NULL
), _old_dentry(NULL
), abort_rc(0),
78 inode_drop(0), inode_unless(0),
79 old_inode_drop(0), old_inode_unless(0),
80 dentry_drop(0), dentry_unless(0),
81 old_dentry_drop(0), old_dentry_unless(0),
82 other_inode_drop(0), other_inode_unless(0),
84 mds(-1), resend_mds(-1), send_to_auth(false), sent_on_mseq(0),
85 num_fwd(0), retry_attempt(0),
87 kick(false), success(false), dirp(NULL
),
88 got_unsafe(false), item(this), unsafe_item(this),
89 unsafe_dir_item(this), unsafe_target_item(this),
90 caller_cond(0), dispatch_cond(0) {
91 memset(&head
, 0, sizeof(head
));
97 * Prematurely terminate the request, such that callers
98 * to make_request will receive `rc` as their result.
102 ceph_assert(rc
!= 0);
107 * Whether abort() has been called for this request
109 inline bool aborted() const
111 return abort_rc
!= 0;
115 * Given that abort() has been called for this request, what `rc` was
118 int get_abort_code() const
123 void set_inode(Inode
*in
) {
129 void take_inode(InodeRef
*out
) {
132 void set_old_inode(Inode
*in
) {
136 return _old_inode
.get();
138 void take_old_inode(InodeRef
*out
) {
139 out
->swap(_old_inode
);
141 void set_other_inode(Inode
*in
) {
144 Inode
*other_inode() {
145 return _other_inode
.get();
147 void take_other_inode(InodeRef
*out
) {
148 out
->swap(_other_inode
);
150 void set_dentry(Dentry
*d
);
152 void set_old_dentry(Dentry
*d
);
153 Dentry
*old_dentry();
160 /// psuedo-private put method; use Client::put_request()
167 void set_tid(ceph_tid_t t
) { tid
= t
; }
168 void set_oldest_client_tid(ceph_tid_t t
) { head
.oldest_client_tid
= t
; }
169 void inc_num_fwd() { head
.num_fwd
= head
.num_fwd
+ 1; }
170 void set_retry_attempt(int a
) { head
.num_retry
= a
; }
171 void set_filepath(const filepath
& fp
) { path
= fp
; }
172 void set_filepath2(const filepath
& fp
) { path2
= fp
; }
173 void set_alternate_name(std::string an
) { alternate_name
= an
; }
174 void set_string2(const char *s
) { path2
.set_path(std::string_view(s
), 0); }
175 void set_caller_perms(const UserPerm
& _perms
) {
176 perms
.shallow_copy(_perms
);
177 head
.caller_uid
= perms
.uid();
178 head
.caller_gid
= perms
.gid();
180 uid_t
get_uid() { return perms
.uid(); }
181 uid_t
get_gid() { return perms
.gid(); }
182 void set_data(const bufferlist
&d
) { data
= d
; }
183 void set_dentry_wanted() {
184 head
.flags
= head
.flags
| CEPH_MDS_FLAG_WANT_DENTRY
;
186 int get_op() { return head
.op
; }
187 ceph_tid_t
get_tid() { return tid
; }
188 filepath
& get_filepath() { return path
; }
189 filepath
& get_filepath2() { return path2
; }
193 (head
.op
& CEPH_MDS_OP_WRITE
) ||
194 (head
.op
== CEPH_MDS_OP_OPEN
&& (head
.args
.open
.flags
& (O_CREAT
|O_TRUNC
)));
197 if ((head
.op
& CEPH_MDS_OP_WRITE
) ||
198 head
.op
== CEPH_MDS_OP_OPEN
) // do not forward _any_ open request.
202 bool auth_is_best() {
203 if ((head
.op
& CEPH_MDS_OP_WRITE
) || head
.op
== CEPH_MDS_OP_OPEN
||
204 (head
.op
== CEPH_MDS_OP_GETATTR
&& (head
.args
.getattr
.mask
& CEPH_STAT_RSTAT
)) ||
205 head
.op
== CEPH_MDS_OP_READDIR
|| send_to_auth
)
210 void dump(Formatter
*f
) const;