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dht/dht-remote-node.hpp

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+/*
+    This file is part of TON Blockchain Library.
+
+    TON Blockchain Library is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 2 of the License, or
+    (at your option) any later version.
+
+    TON Blockchain Library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with TON Blockchain Library.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2017-2019 Telegram Systems LLP
+*/
+#pragma once
+
+#include "td/utils/int_types.h"
+#include "td/actor/actor.h"
+
+#include "adnl/adnl.h"
+#include "adnl/utils.hpp"
+
+#include "dht.hpp"
+
+#include "auto/tl/ton_api.hpp"
+
+namespace ton {
+
+namespace dht {
+
+class DhtMember;
+
+class DhtRemoteNode {
+ private:
+  DhtKeyId id_;
+  DhtNode node_;
+
+  td::uint32 max_missed_pings_;
+  td::uint32 missed_pings_ = 0;
+  double last_ping_at_ = 0;
+  double ready_from_ = 0;
+  double failed_from_ = 0;
+  td::int32 version_;
+
+ public:
+  DhtRemoteNode(DhtNode node, td::uint32 max_missed_pings)
+      : node_(std::move(node)), max_missed_pings_(max_missed_pings) {
+    failed_from_ = td::Time::now_cached();
+    id_ = node.get_key();
+  }
+  static td::Result<std::unique_ptr<DhtRemoteNode>> create(DhtNode node, td::uint32 max_missed_pings);
+  DhtNode get_node() const {
+    return node_.clone();
+  }
+  double failed_from() const {
+    return failed_from_;
+  }
+  adnl::AdnlAddressList get_addr_list() const;
+  adnl::AdnlNodeIdFull get_full_id() const;
+  DhtKeyId get_key() const {
+    return id_;
+  }
+  td::uint32 missed_pings() const {
+    return missed_pings_;
+  }
+  bool is_ready() const {
+    return ready_from_ > 0;
+  }
+  double ready_from() const {
+    return ready_from_;
+  }
+  double last_ping_at() const {
+    return last_ping_at_;
+  }
+  void send_ping(td::actor::ActorId<adnl::Adnl> adnl, td::actor::ActorId<DhtMember> node, adnl::AdnlNodeIdShort src);
+  td::Status receive_ping(DhtNode node, td::actor::ActorId<adnl::Adnl> adnl, adnl::AdnlNodeIdShort self_id);
+  td::Status update_value(DhtNode node, td::actor::ActorId<adnl::Adnl> adnl, adnl::AdnlNodeIdShort self_id);
+};
+
+}  // namespace dht
+
+}  // namespace ton