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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) 2013 Inktank Storage, Inc.
*
* 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 MOSDPGPULL_H
#define MOSDPGPULL_H
#include "MOSDFastDispatchOp.h"
class MOSDPGPull : public MOSDFastDispatchOp {
static const int HEAD_VERSION = 2;
static const int COMPAT_VERSION = 1;
public:
pg_shard_t from;
spg_t pgid;
epoch_t map_epoch;
vector<PullOp> pulls;
uint64_t cost;
epoch_t get_map_epoch() const override {
return map_epoch;
}
spg_t get_spg() const override {
return pgid;
}
MOSDPGPull()
: MOSDFastDispatchOp(MSG_OSD_PG_PULL, HEAD_VERSION, COMPAT_VERSION),
cost(0)
{}
void compute_cost(CephContext *cct) {
cost = 0;
for (vector<PullOp>::iterator i = pulls.begin();
i != pulls.end();
++i) {
cost += i->cost(cct);
}
}
int get_cost() const {
return cost;
}
virtual void decode_payload() {
bufferlist::iterator p = payload.begin();
::decode(pgid.pgid, p);
::decode(map_epoch, p);
::decode(pulls, p);
::decode(cost, p);
if (header.version >= 2) {
::decode(pgid.shard, p);
::decode(from, p);
} else {
pgid.shard = shard_id_t::NO_SHARD;
from = pg_shard_t(get_source().num(), shard_id_t::NO_SHARD);
}
}
virtual void encode_payload(uint64_t features) {
::encode(pgid.pgid, payload);
::encode(map_epoch, payload);
::encode(pulls, payload, features);
::encode(cost, payload);
::encode(pgid.shard, payload);
::encode(from, payload);
}
const char *get_type_name() const { return "MOSDPGPull"; }
void print(ostream& out) const {
out << "MOSDPGPull(" << pgid
<< " " << map_epoch
<< " " << pulls;
out << ")";
}
};
#endif
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