tonlib: added missing files

tonlib/tonlib/ExtClientOutbound.h

@@ -0,0 +1,37 @@
+/*
+    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/actor/actor.h"
+
+#include "adnl/adnl-ext-client.h"
+
+namespace tonlib {
+class ExtClientOutbound : public ton::adnl::AdnlExtClient {
+ public:
+  class Callback {
+   public:
+    virtual ~Callback() {
+    }
+    virtual void request(td::int64 id, std::string data) = 0;
+  };
+  virtual void on_query_result(td::int64 id, td::Result<td::BufferSlice> r_data, td::Promise<td::Unit> promise) = 0;
+  static td::actor::ActorOwn<ExtClientOutbound> create(td::unique_ptr<Callback> callback);
+};
+
+}  // namespace tonlib