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https://github.com/ceph/ceph
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f45e480e8e
This is a portion of Part 1 of the namespace project: using ADL properly in encode and decode so we can use namespaces easily in Ceph. Signed-off-by: Adam C. Emerson <aemerson@redhat.com>
93 lines
2.3 KiB
C++
93 lines
2.3 KiB
C++
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
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// vim: ts=8 sw=2 smarttab
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/*
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* Ceph - scalable distributed file system
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*
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* Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
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*
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* This is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software
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* Foundation. See file COPYING.
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*
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*/
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#ifndef CEPH_MRECOVERY_H
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#define CEPH_MRECOVERY_H
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#include "msg/Message.h"
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class MRecoveryReserve : public Message {
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static const int HEAD_VERSION = 3;
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static const int COMPAT_VERSION = 2;
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public:
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spg_t pgid;
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epoch_t query_epoch;
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enum {
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REQUEST = 0, // primary->replica: please reserve slot
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GRANT = 1, // replica->primary: ok, i reserved it
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RELEASE = 2, // primary->replica: release the slot i reserved before
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REVOKE = 3, // replica->primary: i'm taking back the slot i gave you
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};
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uint32_t type;
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uint32_t priority = 0;
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MRecoveryReserve()
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: Message(MSG_OSD_RECOVERY_RESERVE, HEAD_VERSION, COMPAT_VERSION),
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query_epoch(0), type(-1) {}
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MRecoveryReserve(int type,
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spg_t pgid,
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epoch_t query_epoch,
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unsigned prio = 0)
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: Message(MSG_OSD_RECOVERY_RESERVE, HEAD_VERSION, COMPAT_VERSION),
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pgid(pgid), query_epoch(query_epoch),
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type(type), priority(prio) {}
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const char *get_type_name() const override {
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return "MRecoveryReserve";
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}
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void print(ostream& out) const override {
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out << "MRecoveryReserve(" << pgid;
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switch (type) {
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case REQUEST:
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out << " REQUEST";
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break;
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case GRANT:
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out << " GRANT";
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break;
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case RELEASE:
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out << " RELEASE";
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break;
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case REVOKE:
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out << " REVOKE";
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break;
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}
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out << " e" << query_epoch << ")";
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if (type == REQUEST) out << ", prio: " << priority;
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return;
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}
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void decode_payload() override {
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bufferlist::iterator p = payload.begin();
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decode(pgid.pgid, p);
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decode(query_epoch, p);
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decode(type, p);
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decode(pgid.shard, p);
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if (header.version >= 3) {
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decode(priority, p);
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}
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}
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void encode_payload(uint64_t features) override {
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using ceph::encode;
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encode(pgid.pgid, payload);
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encode(query_epoch, payload);
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encode(type, payload);
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encode(pgid.shard, payload);
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encode(priority, payload);
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}
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};
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#endif
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