--- /dev/null
+// -*- 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_MOSDPGLOG_H
+#define CEPH_MOSDPGLOG_H
+
+#include "msg/Message.h"
+
+class MOSDPGLog : public Message {
+
+ static const int HEAD_VERSION = 5;
+ static const int COMPAT_VERSION = 2;
+
+ epoch_t epoch = 0;
+ /// query_epoch is the epoch of the query being responded to, or
+ /// the current epoch if this is not being sent in response to a
+ /// query. This allows the recipient to disregard responses to old
+ /// queries.
+ epoch_t query_epoch = 0;
+
+public:
+ shard_id_t to;
+ shard_id_t from;
+ pg_info_t info;
+ pg_log_t log;
+ pg_missing_t missing;
+ PastIntervals past_intervals;
+
+ epoch_t get_epoch() const { return epoch; }
+ spg_t get_pgid() const { return spg_t(info.pgid.pgid, to); }
+ epoch_t get_query_epoch() const { return query_epoch; }
+
+ MOSDPGLog() : Message(MSG_OSD_PG_LOG, HEAD_VERSION, COMPAT_VERSION) {
+ set_priority(CEPH_MSG_PRIO_HIGH);
+ }
+ MOSDPGLog(shard_id_t to, shard_id_t from, version_t mv, pg_info_t& i)
+ : Message(MSG_OSD_PG_LOG, HEAD_VERSION, COMPAT_VERSION),
+ epoch(mv), query_epoch(mv),
+ to(to), from(from),
+ info(i) {
+ set_priority(CEPH_MSG_PRIO_HIGH);
+ }
+ MOSDPGLog(shard_id_t to, shard_id_t from,
+ version_t mv, pg_info_t& i, epoch_t query_epoch)
+ : Message(MSG_OSD_PG_LOG, HEAD_VERSION, COMPAT_VERSION),
+ epoch(mv), query_epoch(query_epoch),
+ to(to), from(from),
+ info(i) {
+ set_priority(CEPH_MSG_PRIO_HIGH);
+ }
+
+private:
+ ~MOSDPGLog() override {}
+
+public:
+ const char *get_type_name() const override { return "PGlog"; }
+ void print(ostream& out) const override {
+ // NOTE: log is not const, but operator<< doesn't touch fields
+ // swapped out by OSD code.
+ out << "pg_log(" << info.pgid << " epoch " << epoch
+ << " log " << log
+ << " pi " << past_intervals
+ << " query_epoch " << query_epoch << ")";
+ }
+
+ void encode_payload(uint64_t features) override {
+ ::encode(epoch, payload);
+ ::encode(info, payload);
+ ::encode(log, payload);
+ ::encode(missing, payload);
+ ::encode(query_epoch, payload);
+ if (HAVE_FEATURE(features, SERVER_LUMINOUS)) {
+ header.version = HEAD_VERSION;
+ ::encode(past_intervals, payload);
+ } else {
+ header.version = 4;
+ past_intervals.encode_classic(payload);
+ }
+ ::encode(to, payload);
+ ::encode(from, payload);
+ }
+ void decode_payload() override {
+ bufferlist::iterator p = payload.begin();
+ ::decode(epoch, p);
+ ::decode(info, p);
+ log.decode(p, info.pgid.pool());
+ missing.decode(p, info.pgid.pool());
+ if (header.version >= 2) {
+ ::decode(query_epoch, p);
+ }
+ if (header.version >= 3) {
+ if (header.version >= 5) {
+ ::decode(past_intervals, p);
+ } else {
+ past_intervals.decode_classic(p);
+ }
+ }
+ if (header.version >= 4) {
+ ::decode(to, p);
+ ::decode(from, p);
+ } else {
+ to = shard_id_t::NO_SHARD;
+ from = shard_id_t::NO_SHARD;
+ }
+ }
+};
+
+#endif