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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_MCLIENTSNAP_H
+#define CEPH_MCLIENTSNAP_H
+
+#include "msg/Message.h"
+
+class MClientSnap : public MessageInstance<MClientSnap> {
+public:
+ friend factory;
+
+ ceph_mds_snap_head head;
+ bufferlist bl;
+
+ // (for split only)
+ vector<inodeno_t> split_inos;
+ vector<inodeno_t> split_realms;
+
+protected:
+ MClientSnap(int o=0) :
+ MessageInstance(CEPH_MSG_CLIENT_SNAP) {
+ memset(&head, 0, sizeof(head));
+ head.op = o;
+ }
+ ~MClientSnap() override {}
+
+public:
+ std::string_view get_type_name() const override { return "client_snap"; }
+ void print(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);
+ encode_nohead(split_inos, payload);
+ encode_nohead(split_realms, payload);
+ encode_nohead(bl, payload);
+ }
+ void decode_payload() override {
+ auto p = payload.cbegin();
+ decode(head, p);
+ decode_nohead(head.num_split_inos, split_inos, p);
+ decode_nohead(head.num_split_realms, split_realms, p);
+ decode_nohead(head.trace_len, bl, p);
+ ceph_assert(p.end());
+ }
+
+};
+
+#endif