1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 * Ceph - scalable distributed file system
6 * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
8 * This is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License version 2.1, as published by the Free Software
11 * Foundation. See file COPYING.
16 #ifndef CEPH_MDISCOVER_H
17 #define CEPH_MDISCOVER_H
19 #include "msg/Message.h"
20 #include "include/filepath.h"
25 class MDiscover : public Message {
26 inodeno_t base_ino; // 1 -> root
30 filepath want; // ... [/]need/this/stuff
36 inodeno_t get_base_ino() { return base_ino; }
37 frag_t get_base_dir_frag() { return base_dir_frag; }
38 snapid_t get_snapid() { return snapid; }
40 filepath& get_want() { return want; }
41 const std::string& get_dentry(int n) { return want[n]; }
43 bool wants_base_dir() { return want_base_dir; }
44 bool wants_xlocked() { return want_xlocked; }
46 void set_base_dir_frag(frag_t f) { base_dir_frag = f; }
48 MDiscover() : Message(MSG_MDS_DISCOVER) { }
49 MDiscover(inodeno_t base_ino_,
53 bool want_base_dir_ = true,
54 bool discover_xlocks_ = false) :
55 Message(MSG_MDS_DISCOVER),
57 base_dir_frag(base_frag_),
60 want_base_dir(want_base_dir_),
61 want_xlocked(discover_xlocks_) { }
63 ~MDiscover() override {}
66 const char *get_type_name() const override { return "Dis"; }
67 void print(ostream &out) const override {
68 out << "discover(" << header.tid << " " << base_ino << "." << base_dir_frag
69 << " " << want << ")";
72 void decode_payload() override {
73 bufferlist::iterator p = payload.begin();
74 ::decode(base_ino, p);
75 ::decode(base_dir_frag, p);
78 ::decode(want_base_dir, p);
79 ::decode(want_xlocked, p);
81 void encode_payload(uint64_t features) override {
82 ::encode(base_ino, payload);
83 ::encode(base_dir_frag, payload);
84 ::encode(snapid, payload);
85 ::encode(want, payload);
86 ::encode(want_base_dir, payload);
87 ::encode(want_xlocked, payload);