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_MCLIENTCAPRELEASE_H
16 #define CEPH_MCLIENTCAPRELEASE_H
18 #include "msg/Message.h"
21 class MClientCapRelease : public Message {
22 static const int HEAD_VERSION = 2;
23 static const int COMPAT_VERSION = 1;
25 struct ceph_mds_cap_release head;
26 vector<ceph_mds_cap_item> caps;
28 // The message receiver must wait for this OSD epoch
29 // before actioning this cap release.
30 epoch_t osd_epoch_barrier;
33 Message(CEPH_MSG_CLIENT_CAPRELEASE, HEAD_VERSION, COMPAT_VERSION),
36 memset(&head, 0, sizeof(head));
39 ~MClientCapRelease() override {}
42 const char *get_type_name() const override { return "client_cap_release";}
43 void print(ostream& out) const override {
44 out << "client_cap_release(" << caps.size() << ")";
47 void decode_payload() override {
48 bufferlist::iterator p = payload.begin();
50 ::decode_nohead(head.num, caps, p);
51 if (header.version >= 2) {
52 ::decode(osd_epoch_barrier, p);
55 void encode_payload(uint64_t features) override {
56 head.num = caps.size();
57 ::encode(head, payload);
58 ::encode_nohead(caps, payload);
59 ::encode(osd_epoch_barrier, payload);