initial code repo

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

diff --git a/src/ceph/src/messages/MWatchNotify.h b/src/ceph/src/messages/MWatchNotify.h
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+++ b/src/ceph/src/messages/MWatchNotify.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_MWATCHNOTIFY_H
+#define CEPH_MWATCHNOTIFY_H
+
+#include "msg/Message.h"
+
+
+class MWatchNotify : public Message {
+  static const int HEAD_VERSION = 3;
+  static const int COMPAT_VERSION = 1;
+
+ public:
+  uint64_t cookie;     ///< client unique id for this watch or notify
+  uint64_t ver;        ///< unused
+  uint64_t notify_id;  ///< osd unique id for a notify notification
+  uint8_t opcode;      ///< CEPH_WATCH_EVENT_*
+  bufferlist bl;       ///< notify payload (osd->client)
+  errorcode32_t return_code; ///< notify result (osd->client)
+  uint64_t notifier_gid; ///< who sent the notify
+
+  MWatchNotify()
+    : Message(CEPH_MSG_WATCH_NOTIFY, HEAD_VERSION, COMPAT_VERSION) { }
+  MWatchNotify(uint64_t c, uint64_t v, uint64_t i, uint8_t o, bufferlist b)
+    : Message(CEPH_MSG_WATCH_NOTIFY, HEAD_VERSION, COMPAT_VERSION),
+      cookie(c),
+      ver(v),
+      notify_id(i),
+      opcode(o),
+      bl(b),
+      return_code(0),
+      notifier_gid(0) { }
+private:
+  ~MWatchNotify() override {}
+
+public:
+  void decode_payload() override {
+    uint8_t msg_ver;
+    bufferlist::iterator p = payload.begin();
+    ::decode(msg_ver, p);
+    ::decode(opcode, p);
+    ::decode(cookie, p);
+    ::decode(ver, p);
+    ::decode(notify_id, p);
+    if (msg_ver >= 1)
+      ::decode(bl, p);
+    if (header.version >= 2)
+      ::decode(return_code, p);
+    else
+      return_code = 0;
+    if (header.version >= 3)
+      ::decode(notifier_gid, p);
+    else
+      notifier_gid = 0;
+  }
+  void encode_payload(uint64_t features) override {
+    uint8_t msg_ver = 1;
+    ::encode(msg_ver, payload);
+    ::encode(opcode, payload);
+    ::encode(cookie, payload);
+    ::encode(ver, payload);
+    ::encode(notify_id, payload);
+    ::encode(bl, payload);
+    ::encode(return_code, payload);
+    ::encode(notifier_gid, payload);
+  }
+
+  const char *get_type_name() const override { return "watch-notify"; }
+  void print(ostream& out) const override {
+    out << "watch-notify("
+       << ceph_watch_event_name(opcode) << " (" << (int)opcode << ")"
+       << " cookie " << cookie
+       << " notify " << notify_id
+       << " ret " << return_code
+       << ")";
+  }
+};
+
+#endif