initial code repo

[stor4nfv.git] / src / ceph / src / messages / MOSDRepOp.h

diff --git a/src/ceph/src/messages/MOSDRepOp.h b/src/ceph/src/messages/MOSDRepOp.h
new file mode 100644 (file)
index 0000000..8665353
--- /dev/null
+++ b/src/ceph/src/messages/MOSDRepOp.h
@@ -0,0 +1,177 @@
+// -*- 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_MOSDREPOP_H
+#define CEPH_MOSDREPOP_H
+
+#include "MOSDFastDispatchOp.h"
+
+/*
+ * OSD sub op - for internal ops on pobjects between primary and replicas(/stripes/whatever)
+ */
+
+class MOSDRepOp : public MOSDFastDispatchOp {
+
+  static const int HEAD_VERSION = 2;
+  static const int COMPAT_VERSION = 1;
+
+public:
+  epoch_t map_epoch, min_epoch;
+
+  // metadata from original request
+  osd_reqid_t reqid;
+
+  spg_t pgid;
+
+  bufferlist::iterator p;
+  // Decoding flags. Decoding is only needed for messages catched by pipe reader.
+  bool final_decode_needed;
+
+  // subop
+  pg_shard_t from;
+  hobject_t poid;
+
+  __u8 acks_wanted;
+
+  // transaction to exec
+  bufferlist logbl;
+  pg_stat_t pg_stats;
+
+  // subop metadata
+  eversion_t version;
+
+  // piggybacked osd/og state
+  eversion_t pg_trim_to;   // primary->replica: trim to here
+  eversion_t pg_roll_forward_to;   // primary->replica: trim rollback
+                                    // info to here
+
+  hobject_t new_temp_oid;      ///< new temp object that we must now start tracking
+  hobject_t discard_temp_oid;  ///< previously used temp object that we can now stop tracking
+
+  /// non-empty if this transaction involves a hit_set history update
+  boost::optional<pg_hit_set_history_t> updated_hit_set_history;
+
+  epoch_t get_map_epoch() const override {
+    return map_epoch;
+  }
+  epoch_t get_min_epoch() const override {
+    return min_epoch;
+  }
+  spg_t get_spg() const override {
+    return pgid;
+  }
+
+  int get_cost() const override {
+    return data.length();
+  }
+
+  void decode_payload() override {
+    p = payload.begin();
+    // splitted to partial and final
+    ::decode(map_epoch, p);
+    if (header.version >= 2) {
+      ::decode(min_epoch, p);
+      decode_trace(p);
+    } else {
+      min_epoch = map_epoch;
+    }
+    ::decode(reqid, p);
+    ::decode(pgid, p);
+  }
+
+  void finish_decode() {
+    if (!final_decode_needed)
+      return; // Message is already final decoded
+    ::decode(poid, p);
+
+    ::decode(acks_wanted, p);
+    ::decode(version, p);
+    ::decode(logbl, p);
+    ::decode(pg_stats, p);
+    ::decode(pg_trim_to, p);
+
+
+    ::decode(new_temp_oid, p);
+    ::decode(discard_temp_oid, p);
+
+    ::decode(from, p);
+    ::decode(updated_hit_set_history, p);
+    ::decode(pg_roll_forward_to, p);
+    final_decode_needed = false;
+  }
+
+  void encode_payload(uint64_t features) override {
+    ::encode(map_epoch, payload);
+    if (HAVE_FEATURE(features, SERVER_LUMINOUS)) {
+      header.version = HEAD_VERSION;
+      ::encode(min_epoch, payload);
+      encode_trace(payload, features);
+    } else {
+      header.version = 1;
+    }
+    ::encode(reqid, payload);
+    ::encode(pgid, payload);
+    ::encode(poid, payload);
+
+    ::encode(acks_wanted, payload);
+    ::encode(version, payload);
+    ::encode(logbl, payload);
+    ::encode(pg_stats, payload);
+    ::encode(pg_trim_to, payload);
+    ::encode(new_temp_oid, payload);
+    ::encode(discard_temp_oid, payload);
+    ::encode(from, payload);
+    ::encode(updated_hit_set_history, payload);
+    ::encode(pg_roll_forward_to, payload);
+  }
+
+  MOSDRepOp()
+    : MOSDFastDispatchOp(MSG_OSD_REPOP, HEAD_VERSION, COMPAT_VERSION),
+      map_epoch(0),
+      final_decode_needed(true), acks_wanted (0) {}
+  MOSDRepOp(osd_reqid_t r, pg_shard_t from,
+           spg_t p, const hobject_t& po, int aw,
+           epoch_t mape, epoch_t min_epoch, ceph_tid_t rtid, eversion_t v)
+    : MOSDFastDispatchOp(MSG_OSD_REPOP, HEAD_VERSION, COMPAT_VERSION),
+      map_epoch(mape),
+      min_epoch(min_epoch),
+      reqid(r),
+      pgid(p),
+      final_decode_needed(false),
+      from(from),
+      poid(po),
+      acks_wanted(aw),
+      version(v) {
+    set_tid(rtid);
+  }
+private:
+  ~MOSDRepOp() override {}
+
+public:
+  const char *get_type_name() const override { return "osd_repop"; }
+  void print(ostream& out) const override {
+    out << "osd_repop(" << reqid
+       << " " << pgid << " e" << map_epoch << "/" << min_epoch;
+    if (!final_decode_needed) {
+      out << " " << poid << " v " << version;
+      if (updated_hit_set_history)
+        out << ", has_updated_hit_set_history";
+    }
+    out << ")";
+  }
+};
+
+
+#endif