initial code repo

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

diff --git a/src/ceph/src/messages/MBackfillReserve.h b/src/ceph/src/messages/MBackfillReserve.h
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+++ b/src/ceph/src/messages/MBackfillReserve.h
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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_MBACKFILL_H
+#define CEPH_MBACKFILL_H
+
+#include "msg/Message.h"
+
+class MBackfillReserve : public Message {
+  static const int HEAD_VERSION = 3;
+  static const int COMPAT_VERSION = 3;
+public:
+  spg_t pgid;
+  epoch_t query_epoch;
+  enum {
+    REQUEST = 0,
+    GRANT = 1,
+    REJECT = 2,
+  };
+  uint32_t type;
+  uint32_t priority;
+
+  MBackfillReserve()
+    : Message(MSG_OSD_BACKFILL_RESERVE, HEAD_VERSION, COMPAT_VERSION),
+      query_epoch(0), type(-1), priority(-1) {}
+  MBackfillReserve(int type,
+                  spg_t pgid,
+                  epoch_t query_epoch, unsigned prio = -1)
+    : Message(MSG_OSD_BACKFILL_RESERVE, HEAD_VERSION, COMPAT_VERSION),
+      pgid(pgid), query_epoch(query_epoch),
+      type(type), priority(prio) {}
+
+  const char *get_type_name() const override {
+    return "MBackfillReserve";
+  }
+
+  void print(ostream& out) const override {
+    out << "MBackfillReserve ";
+    switch (type) {
+    case REQUEST:
+      out << "REQUEST ";
+      break;
+    case GRANT:
+      out << "GRANT "; 
+      break;
+    case REJECT:
+      out << "REJECT ";
+      break;
+    }
+    out << " pgid: " << pgid << ", query_epoch: " << query_epoch;
+    if (type == REQUEST) out << ", prio: " << priority;
+    return;
+  }
+
+  void decode_payload() override {
+    bufferlist::iterator p = payload.begin();
+    ::decode(pgid.pgid, p);
+    ::decode(query_epoch, p);
+    ::decode(type, p);
+    ::decode(priority, p);
+    ::decode(pgid.shard, p);
+  }
+
+  void encode_payload(uint64_t features) override {
+    ::encode(pgid.pgid, payload);
+    ::encode(query_epoch, payload);
+    ::encode(type, payload);
+    ::encode(priority, payload);
+    ::encode(pgid.shard, payload);
+  }
+};
+
+#endif