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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#ifndef CEPH_MCLIENTCAPRELEASE_H
#define CEPH_MCLIENTCAPRELEASE_H
#include "msg/Message.h"
class MClientCapRelease : public MessageInstance<MClientCapRelease> {
public:
friend factory;
private:
static constexpr int HEAD_VERSION = 2;
static constexpr int COMPAT_VERSION = 1;
public:
struct ceph_mds_cap_release head;
vector<ceph_mds_cap_item> caps;
// The message receiver must wait for this OSD epoch
// before actioning this cap release.
epoch_t osd_epoch_barrier;
MClientCapRelease() :
MessageInstance(CEPH_MSG_CLIENT_CAPRELEASE, HEAD_VERSION, COMPAT_VERSION),
osd_epoch_barrier(0)
{
memset(&head, 0, sizeof(head));
}
private:
~MClientCapRelease() override {}
public:
std::string_view get_type_name() const override { return "client_cap_release";}
void print(ostream& out) const override {
out << "client_cap_release(" << caps.size() << ")";
}
void decode_payload() override {
auto p = payload.cbegin();
decode(head, p);
decode_nohead(head.num, caps, p);
if (header.version >= 2) {
decode(osd_epoch_barrier, p);
}
}
void encode_payload(uint64_t features) override {
using ceph::encode;
head.num = caps.size();
encode(head, payload);
encode_nohead(caps, payload);
encode(osd_epoch_barrier, payload);
}
};
#endif
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