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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_MCACHEEXPIRE_H
#define CEPH_MCACHEEXPIRE_H
class MCacheExpire : public Message {
__s32 from;
public:
/*
group things by realm (auth delgation root), since that's how auth is determined.
that makes it less work to process when exports are in progress.
*/
struct realm {
map<vinodeno_t, __s32> inodes;
map<dirfrag_t, __s32> dirs;
map<dirfrag_t, map<pair<string,snapid_t>,__s32> > dentries;
void encode(bufferlist &bl) const {
::encode(inodes, bl);
::encode(dirs, bl);
::encode(dentries, bl);
}
void decode(bufferlist::iterator &bl) {
::decode(inodes, bl);
::decode(dirs, bl);
::decode(dentries, bl);
}
};
WRITE_CLASS_ENCODER(realm)
map<dirfrag_t, realm> realms;
int get_from() { return from; }
MCacheExpire() {}
MCacheExpire(int f) :
Message(MSG_MDS_CACHEEXPIRE),
from(f) { }
private:
~MCacheExpire() {}
public:
virtual const char *get_type_name() { return "cache_expire";}
void add_inode(dirfrag_t r, vinodeno_t vino, int nonce) {
realms[r].inodes[vino] = nonce;
}
void add_dir(dirfrag_t r, dirfrag_t df, int nonce) {
realms[r].dirs[df] = nonce;
}
void add_dentry(dirfrag_t r, dirfrag_t df, const string& dn, snapid_t last, int nonce) {
realms[r].dentries[df][pair<string,snapid_t>(dn,last)] = nonce;
}
void add_realm(dirfrag_t df, realm& r) {
realms[df] = r;
}
void decode_payload() {
bufferlist::iterator p = payload.begin();
::decode(from, p);
::decode(realms, p);
}
void encode_payload(uint64_t features) {
::encode(from, payload);
::encode(realms, payload);
}
};
WRITE_CLASS_ENCODER(MCacheExpire::realm)
#endif
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