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.
15 #ifndef CEPH_MMDSRESOLVE_H
16 #define CEPH_MMDSRESOLVE_H
18 #include "msg/Message.h"
20 #include "include/types.h"
22 class MMDSResolve : public Message {
24 map<dirfrag_t, vector<dirfrag_t> > subtrees;
25 map<dirfrag_t, vector<dirfrag_t> > ambiguous_imports;
27 struct slave_request {
28 bufferlist inode_caps;
30 slave_request() : committing(false) {}
31 void encode(bufferlist &bl) const {
32 ::encode(inode_caps, bl);
33 ::encode(committing, bl);
35 void decode(bufferlist::iterator &bl) {
36 ::decode(inode_caps, bl);
37 ::decode(committing, bl);
40 WRITE_CLASS_ENCODER(slave_request)
42 map<metareqid_t, slave_request> slave_requests;
44 MMDSResolve() : Message(MSG_MDS_RESOLVE) {}
46 ~MMDSResolve() override {}
49 const char *get_type_name() const override { return "mds_resolve"; }
51 void print(ostream& out) const override {
52 out << "mds_resolve(" << subtrees.size()
53 << "+" << ambiguous_imports.size()
54 << " subtrees +" << slave_requests.size() << " slave requests)";
57 void add_subtree(dirfrag_t im) {
60 void add_subtree_bound(dirfrag_t im, dirfrag_t ex) {
61 subtrees[im].push_back(ex);
64 void add_ambiguous_import(dirfrag_t im, const vector<dirfrag_t>& m) {
65 ambiguous_imports[im] = m;
68 void add_slave_request(metareqid_t reqid, bool committing) {
69 slave_requests[reqid].committing = committing;
72 void add_slave_request(metareqid_t reqid, bufferlist& bl) {
73 slave_requests[reqid].inode_caps.claim(bl);
76 void encode_payload(uint64_t features) override {
77 ::encode(subtrees, payload);
78 ::encode(ambiguous_imports, payload);
79 ::encode(slave_requests, payload);
81 void decode_payload() override {
82 bufferlist::iterator p = payload.begin();
83 ::decode(subtrees, p);
84 ::decode(ambiguous_imports, p);
85 ::decode(slave_requests, p);
89 inline ostream& operator<<(ostream& out, const MMDSResolve::slave_request&) {
93 WRITE_CLASS_ENCODER(MMDSResolve::slave_request)