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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_MOSDPGSCAN_H
+#define CEPH_MOSDPGSCAN_H
+
+#include "MOSDFastDispatchOp.h"
+
+class MOSDPGScan final : public MOSDFastDispatchOp {
+private:
+ static constexpr int HEAD_VERSION = 2;
+ static constexpr int COMPAT_VERSION = 2;
+
+public:
+ enum {
+ OP_SCAN_GET_DIGEST = 1, // just objects and versions
+ OP_SCAN_DIGEST = 2, // result
+ };
+ const char *get_op_name(int o) const {
+ switch (o) {
+ case OP_SCAN_GET_DIGEST: return "get_digest";
+ case OP_SCAN_DIGEST: return "digest";
+ default: return "???";
+ }
+ }
+
+ __u32 op = 0;
+ epoch_t map_epoch = 0, query_epoch = 0;
+ pg_shard_t from;
+ spg_t pgid;
+ hobject_t begin, end;
+
+ epoch_t get_map_epoch() const override {
+ return map_epoch;
+ }
+ epoch_t get_min_epoch() const override {
+ return query_epoch;
+ }
+ spg_t get_spg() const override {
+ return pgid;
+ }
+
+ void decode_payload() override {
+ using ceph::decode;
+ auto p = payload.cbegin();
+ decode(op, p);
+ decode(map_epoch, p);
+ decode(query_epoch, p);
+ decode(pgid.pgid, p);
+ decode(begin, p);
+ decode(end, p);
+
+ // handle hobject_t format upgrade
+ if (!begin.is_max() && begin.pool == -1)
+ begin.pool = pgid.pool();
+ if (!end.is_max() && end.pool == -1)
+ end.pool = pgid.pool();
+
+ decode(from, p);
+ decode(pgid.shard, p);
+ }
+
+ void encode_payload(uint64_t features) override {
+ using ceph::encode;
+ encode(op, payload);
+ encode(map_epoch, payload);
+ if (!HAVE_FEATURE(features, SERVER_NAUTILUS)) {
+ // pre-nautilus OSDs do not set last_peering_reset properly
+ encode(map_epoch, payload);
+ } else {
+ encode(query_epoch, payload);
+ }
+ encode(pgid.pgid, payload);
+ encode(begin, payload);
+ encode(end, payload);
+ encode(from, payload);
+ encode(pgid.shard, payload);
+ }
+
+ MOSDPGScan()
+ : MOSDFastDispatchOp{MSG_OSD_PG_SCAN, HEAD_VERSION, COMPAT_VERSION} {}
+ MOSDPGScan(__u32 o, pg_shard_t from,
+ epoch_t e, epoch_t qe, spg_t p, hobject_t be, hobject_t en)
+ : MOSDFastDispatchOp{MSG_OSD_PG_SCAN, HEAD_VERSION, COMPAT_VERSION},
+ op(o),
+ map_epoch(e), query_epoch(qe),
+ from(from),
+ pgid(p),
+ begin(be), end(en) {
+ }
+private:
+ ~MOSDPGScan() final {}
+
+public:
+ std::string_view get_type_name() const override { return "pg_scan"; }
+ void print(std::ostream& out) const override {
+ out << "pg_scan(" << get_op_name(op)
+ << " " << pgid
+ << " " << begin << "-" << end
+ << " e " << map_epoch << "/" << query_epoch
+ << ")";
+ }
+private:
+ template<class T, typename... Args>
+ friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
+};
+
+#endif