1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 * Ceph - scalable distributed file system
6 * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
8 * This is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License version 2.1, as published by the Free Software
11 * Foundation. See file COPYING.
15 #ifndef CEPH_MOSDPGSCAN_H
16 #define CEPH_MOSDPGSCAN_H
18 #include "MOSDFastDispatchOp.h"
20 class MOSDPGScan : public MOSDFastDispatchOp {
22 static const int HEAD_VERSION = 2;
23 static const int COMPAT_VERSION = 2;
27 OP_SCAN_GET_DIGEST = 1, // just objects and versions
28 OP_SCAN_DIGEST = 2, // result
30 const char *get_op_name(int o) const {
32 case OP_SCAN_GET_DIGEST: return "get_digest";
33 case OP_SCAN_DIGEST: return "digest";
34 default: return "???";
39 epoch_t map_epoch = 0, query_epoch = 0;
44 epoch_t get_map_epoch() const override {
47 epoch_t get_min_epoch() const override {
50 spg_t get_spg() const override {
54 void decode_payload() override {
55 bufferlist::iterator p = payload.begin();
57 ::decode(map_epoch, p);
58 ::decode(query_epoch, p);
59 ::decode(pgid.pgid, p);
63 // handle hobject_t format upgrade
64 if (!begin.is_max() && begin.pool == -1)
65 begin.pool = pgid.pool();
66 if (!end.is_max() && end.pool == -1)
67 end.pool = pgid.pool();
70 ::decode(pgid.shard, p);
73 void encode_payload(uint64_t features) override {
74 ::encode(op, payload);
75 ::encode(map_epoch, payload);
76 ::encode(query_epoch, payload);
77 ::encode(pgid.pgid, payload);
78 ::encode(begin, payload);
79 ::encode(end, payload);
80 ::encode(from, payload);
81 ::encode(pgid.shard, payload);
85 : MOSDFastDispatchOp(MSG_OSD_PG_SCAN, HEAD_VERSION, COMPAT_VERSION) {}
86 MOSDPGScan(__u32 o, pg_shard_t from,
87 epoch_t e, epoch_t qe, spg_t p, hobject_t be, hobject_t en)
88 : MOSDFastDispatchOp(MSG_OSD_PG_SCAN, HEAD_VERSION, COMPAT_VERSION),
90 map_epoch(e), query_epoch(e),
96 ~MOSDPGScan() override {}
99 const char *get_type_name() const override { return "pg_scan"; }
100 void print(ostream& out) const override {
101 out << "pg_scan(" << get_op_name(op)
103 << " " << begin << "-" << end
104 << " e " << map_epoch << "/" << query_epoch