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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"
struct MClientSnap : public Message {
ceph_mds_snap_head head;
bufferlist bl;
// (for split only)
vector<inodeno_t> split_inos;
vector<inodeno_t> split_realms;
MClientSnap(int o=0) :
Message(CEPH_MSG_CLIENT_SNAP) {
memset(&head, 0, sizeof(head));
head.op = o;
}
private:
~MClientSnap() {}
public:
const char *get_type_name() { return "client_snap"; }
void print(ostream& out) {
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) {
head.num_split_inos = split_inos.size();
head.num_split_realms = split_realms.size();
head.trace_len = bl.length();
::encode(head, payload);
::encode_nohead(split_inos, payload);
::encode_nohead(split_realms, payload);
::encode_nohead(bl, payload);
}
void decode_payload() {
bufferlist::iterator p = payload.begin();
::decode(head, p);
::decode_nohead(head.num_split_inos, split_inos, p);
::decode_nohead(head.num_split_realms, split_realms, p);
::decode_nohead(head.trace_len, bl, p);
assert(p.end());
}
};
#endif
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