1 files changed, 162 insertions, 0 deletions
diff --git a/src/messages/MMDSResolve.h b/src/messages/MMDSResolve.h
new file mode 100644
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+++ b/src/messages/MMDSResolve.h
@@ -0,0 +1,162 @@
+// -*- 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_MMDSRESOLVE_H
+#define CEPH_MMDSRESOLVE_H
+
+#include "include/types.h"
+#include "mds/Capability.h"
+#include "messages/MMDSOp.h"
+
+class MMDSResolve final : public MMDSOp {
+  static constexpr int HEAD_VERSION = 1;
+  static constexpr int COMPAT_VERSION = 1;
+
+public:
+  std::map<dirfrag_t, std::vector<dirfrag_t>> subtrees;
+  std::map<dirfrag_t, std::vector<dirfrag_t>> ambiguous_imports;
+
+  class peer_inode_cap {
+  public:
+    inodeno_t ino;
+    std::map<client_t,Capability::Export> cap_exports;
+    peer_inode_cap() {}
+    peer_inode_cap(inodeno_t a, std::map<client_t, Capability::Export> b) : ino(a), cap_exports(b) {}
+    void encode(ceph::buffer::list &bl) const 
+    {
+      ENCODE_START(1, 1, bl);
+      encode(ino, bl);
+      encode(cap_exports, bl);
+      ENCODE_FINISH(bl);
+    }
+    void decode(ceph::buffer::list::const_iterator &blp)
+    {
+      DECODE_START(1, blp);
+      decode(ino, blp);
+      decode(cap_exports, blp);
+      DECODE_FINISH(blp);
+    }
+  };
+  WRITE_CLASS_ENCODER(peer_inode_cap)
+
+  struct peer_request {
+    ceph::buffer::list inode_caps;
+    bool committing;
+    peer_request() : committing(false) {}
+    void encode(ceph::buffer::list &bl) const {
+      ENCODE_START(1, 1, bl);
+      encode(inode_caps, bl);
+      encode(committing, bl);
+      ENCODE_FINISH(bl);
+    }
+    void decode(ceph::buffer::list::const_iterator &blp) {
+      DECODE_START(1, blp);
+      decode(inode_caps, blp);
+      decode(committing, blp);
+      DECODE_FINISH(blp);
+    }
+  };
+
+  std::map<metareqid_t, peer_request> peer_requests;
+
+  // table client information
+  struct table_client {
+    __u8 type;
+    std::set<version_t> pending_commits;
+
+    table_client() : type(0) {}
+    table_client(int _type, const std::set<version_t>& commits)
+      : type(_type), pending_commits(commits) {}
+
+    void encode(ceph::buffer::list& bl) const {
+      using ceph::encode;
+      encode(type, bl);
+      encode(pending_commits, bl);
+    }
+    void decode(ceph::buffer::list::const_iterator& bl) {
+      using ceph::decode;
+      decode(type, bl);
+      decode(pending_commits, bl);
+    }
+  };
+
+  std::list<table_client> table_clients;
+
+protected:
+  MMDSResolve() : MMDSOp{MSG_MDS_RESOLVE, HEAD_VERSION, COMPAT_VERSION}
+ {}
+  ~MMDSResolve() final {}
+
+public:
+  std::string_view get_type_name() const override { return "mds_resolve"; }
+
+  void print(std::ostream& out) const override {
+    out << "mds_resolve(" << subtrees.size()
+	<< "+" << ambiguous_imports.size()
+	<< " subtrees +" << peer_requests.size() << " peer requests)";
+  }
+  
+  void add_subtree(dirfrag_t im) {
+    subtrees[im].clear();
+  }
+  void add_subtree_bound(dirfrag_t im, dirfrag_t ex) {
+    subtrees[im].push_back(ex);
+  }
+
+  void add_ambiguous_import(dirfrag_t im, const std::vector<dirfrag_t>& m) {
+    ambiguous_imports[im] = m;
+  }
+
+  void add_peer_request(metareqid_t reqid, bool committing) {
+    peer_requests[reqid].committing = committing;
+  }
+
+  void add_peer_request(metareqid_t reqid, ceph::buffer::list& bl) {
+    peer_requests[reqid].inode_caps = std::move(bl);
+  }
+
+  void add_table_commits(int table, const std::set<version_t>& pending_commits) {
+    table_clients.push_back(table_client(table, pending_commits));
+  }
+
+  void encode_payload(uint64_t features) override {
+    using ceph::encode;
+    encode(subtrees, payload);
+    encode(ambiguous_imports, payload);
+    encode(peer_requests, payload);
+    encode(table_clients, payload);
+  }
+  void decode_payload() override {
+    using ceph::decode;
+    auto p = payload.cbegin();
+    decode(subtrees, p);
+    decode(ambiguous_imports, p);
+    decode(peer_requests, p);
+    decode(table_clients, p);
+  }
+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);
+};
+
+inline std::ostream& operator<<(std::ostream& out, const MMDSResolve::peer_request&) {
+    return out;
+}
+
+WRITE_CLASS_ENCODER(MMDSResolve::peer_request)
+WRITE_CLASS_ENCODER(MMDSResolve::table_client)
+WRITE_CLASS_ENCODER(MMDSResolve::peer_inode_cap)
+#endif