Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 73 insertions, 0 deletions

diff --git a/src/messages/MClientSnap.h b/src/messages/MClientSnap.h
new file mode 100644
index 000000000..d2d0633ad
--- /dev/null
+++ b/src/messages/MClientSnap.h
@@ -0,0 +1,73 @@
+// -*- 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_MCLIENTSNAP_H
+#define CEPH_MCLIENTSNAP_H
+
+#include "msg/Message.h"
+
+class MClientSnap final : public SafeMessage {
+public:
+  ceph_mds_snap_head head;
+  ceph::buffer::list bl;
+  
+  // (for split only)
+  std::vector<inodeno_t> split_inos;
+  std::vector<inodeno_t> split_realms;
+
+protected:
+  MClientSnap(int o=0) : 
+    SafeMessage{CEPH_MSG_CLIENT_SNAP} {
+    memset(&head, 0, sizeof(head));
+    head.op = o;
+  }
+  ~MClientSnap() final {}
+
+public:  
+  std::string_view get_type_name() const override { return "client_snap"; }
+  void print(std::ostream& out) const override {
+    out << "client_snap(" << ceph_snap_op_name(head.op);
+    if (head.split)
+      out << " split=" << inodeno_t(head.split);
+    out << " tracelen=" << bl.length();
+    out << ")";
+  }
+
+  void encode_payload(uint64_t features) override {
+    using ceph::encode;
+    head.num_split_inos = split_inos.size();
+    head.num_split_realms = split_realms.size();
+    head.trace_len = bl.length();
+    encode(head, payload);
+    ceph::encode_nohead(split_inos, payload);
+    ceph::encode_nohead(split_realms, payload);
+    ceph::encode_nohead(bl, payload);
+  }
+  void decode_payload() override {
+    using ceph::decode;
+    auto p = payload.cbegin();
+    decode(head, p);
+    ceph::decode_nohead(head.num_split_inos, split_inos, p);
+    ceph::decode_nohead(head.num_split_realms, split_realms, p);
+    ceph::decode_nohead(head.trace_len, bl, p);
+    ceph_assert(p.end());
+  }
+private:
+  template<class T, typename... Args>
+  friend boost::intrusive_ptr<T> ceph::make_message(Args&&... args);
+  template<class T, typename... Args>
+  friend MURef<T> crimson::make_message(Args&&... args);
+};
+
+#endif