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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_MCLIENTSNAP_H
#define CEPH_MCLIENTSNAP_H
#include "msg/Message.h"
class MClientSnap final : public SafeMessage {
public:
ceph_mds_snap_head head;
ceph::buffer::list bl;
// (for split only)
std::vector<inodeno_t> split_inos;
std::vector<inodeno_t> split_realms;
protected:
MClientSnap(int o=0) :
SafeMessage{CEPH_MSG_CLIENT_SNAP} {
memset(&head, 0, sizeof(head));
head.op = o;
}
~MClientSnap() final {}
public:
std::string_view get_type_name() const override { return "client_snap"; }
void print(std::ostream& out) const override {
out << "client_snap(" << ceph_snap_op_name(head.op);
if (head.split)
out << " split=" << inodeno_t(head.split);
out << " tracelen=" << bl.length();
out << ")";
}
void encode_payload(uint64_t features) override {
using ceph::encode;
head.num_split_inos = split_inos.size();
head.num_split_realms = split_realms.size();
head.trace_len = bl.length();
encode(head, payload);
ceph::encode_nohead(split_inos, payload);
ceph::encode_nohead(split_realms, payload);
ceph::encode_nohead(bl, payload);
}
void decode_payload() override {
using ceph::decode;
auto p = payload.cbegin();
decode(head, p);
ceph::decode_nohead(head.num_split_inos, split_inos, p);
ceph::decode_nohead(head.num_split_realms, split_realms, p);
ceph::decode_nohead(head.trace_len, bl, p);
ceph_assert(p.end());
}
private:
template<class T, typename... Args>
friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
};
#endif
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