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_MCLIENTRECONNECT_H
16 #define CEPH_MCLIENTRECONNECT_H
18 #include "msg/Message.h"
19 #include "mds/mdstypes.h"
20 #include "include/ceph_features.h"
23 class MClientReconnect : public Message {
25 const static int HEAD_VERSION = 3;
28 map<inodeno_t, cap_reconnect_t> caps; // only head inodes
29 vector<ceph_mds_snaprealm_reconnect> realms;
31 MClientReconnect() : Message(CEPH_MSG_CLIENT_RECONNECT, HEAD_VERSION) { }
33 ~MClientReconnect() override {}
36 const char *get_type_name() const override { return "client_reconnect"; }
37 void print(ostream& out) const override {
38 out << "client_reconnect("
39 << caps.size() << " caps)";
42 void add_cap(inodeno_t ino, uint64_t cap_id, inodeno_t pathbase, const string& path,
43 int wanted, int issued, inodeno_t sr, snapid_t sf, bufferlist& lb)
45 caps[ino] = cap_reconnect_t(cap_id, pathbase, path, wanted, issued, sr, sf, lb);
47 void add_snaprealm(inodeno_t ino, snapid_t seq, inodeno_t parent) {
48 ceph_mds_snaprealm_reconnect r;
55 void encode_payload(uint64_t features) override {
57 if (features & CEPH_FEATURE_MDSENC) {
59 header.version = HEAD_VERSION;
60 } else if (features & CEPH_FEATURE_FLOCK) {
61 // encode with old cap_reconnect_t encoding
62 __u32 n = caps.size();
64 for (map<inodeno_t,cap_reconnect_t>::iterator p = caps.begin(); p != caps.end(); ++p) {
65 ::encode(p->first, data);
66 p->second.encode_old(data);
72 map<inodeno_t, old_cap_reconnect_t> ocaps;
73 for (map<inodeno_t,cap_reconnect_t>::iterator p = caps.begin(); p != caps.end(); p++)
74 ocaps[p->first] = p->second;
75 ::encode(ocaps, data);
77 ::encode_nohead(realms, data);
79 void decode_payload() override {
80 bufferlist::iterator p = data.begin();
81 if (header.version >= 3) {
84 } else if (header.version == 2) {
90 caps[ino].decode_old(p);
94 map<inodeno_t, old_cap_reconnect_t> ocaps;
96 for (map<inodeno_t,old_cap_reconnect_t>::iterator q = ocaps.begin(); q != ocaps.end(); q++)
97 caps[q->first] = q->second;
100 realms.push_back(ceph_mds_snaprealm_reconnect());
101 ::decode(realms.back(), p);