updated submodules, bugfixes

- added new fift/func code for validator complaint creation
- bugfixes in validator
- updates in tonlib
- new versions of rocksdb/abseil
- hardfork support

crypto/common/promiseop.hpp

@@ -0,0 +1,72 @@
+/*
+    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 2020 Telegram Systems LLP
+*/
+#pragma once
+#include "refcnt.hpp"
+#include "td/actor/PromiseFuture.h"
+
+namespace td {
+
+template <typename S, typename T>
+class BinaryPromiseMerger : public CntObject {
+  Result<S> first_;
+  Result<T> second_;
+  Promise<std::pair<S, T>> promise_;
+  std::atomic<int> pending_;
+
+ public:
+  BinaryPromiseMerger(Promise<std::pair<S, T>> promise) : promise_(std::move(promise)), pending_(2) {
+  }
+  static std::pair<Promise<S>, Promise<T>> split(Promise<std::pair<S, T>> promise) {
+    auto ref = make_ref<BinaryPromiseMerger>(std::move(promise));
+    auto& obj = ref.write();
+    return std::make_pair(obj.left(), obj.right());
+  }
+
+ private:
+  Promise<S> left() {
+    return [this, self = Ref<BinaryPromiseMerger>(this)](Result<S> res) {
+      first_ = std::move(res);
+      work();
+    };
+  }
+  Promise<T> right() {
+    return [this, self = Ref<BinaryPromiseMerger>(this)](Result<T> res) {
+      second_ = std::move(res);
+      work();
+    };
+  }
+  void work() {
+    if (!--pending_) {
+      if (first_.is_error()) {
+        promise_.set_error(first_.move_as_error());
+      } else if (second_.is_error()) {
+        promise_.set_error(second_.move_as_error());
+      } else {
+        promise_.set_result(std::pair<S, T>(first_.move_as_ok(), second_.move_as_ok()));
+      }
+    }
+  }
+};
+
+template <typename S, typename T>
+std::pair<Promise<S>, Promise<T>> split_promise(Promise<std::pair<S, T>> promise) {
+  return BinaryPromiseMerger<S, T>::split(std::move(promise));
+}
+
+}  // namespace td