initial commit

validator/impl/block.cpp

@@ -0,0 +1,79 @@
+/*
+    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
+*/
+#include "block.hpp"
+
+namespace ton {
+
+namespace validator {
+
+using td::Ref;
+
+BlockQ::BlockQ(const BlockQ& other) : data_(other.data_.clone()), id_(other.id_), root_(other.root_), boc_(other.boc_) {
+}
+
+BlockQ::BlockQ(BlockIdExt id, td::BufferSlice data) : data_(std::move(data)), id_(id) {
+}
+
+BlockQ::~BlockQ() {
+}
+
+td::Status BlockQ::init() {
+  if (root_.not_null()) {
+    return td::Status::OK();
+  }
+  if (data_.is_null()) {
+    return td::Status::Error(-668, "cannot initialize a block from an empty BufferSlice");
+  }
+  vm::StaticBagOfCellsDbLazy::Options options;
+  options.check_crc32c = true;
+  auto res = vm::StaticBagOfCellsDbLazy::create(vm::BufferSliceBlobView::create(data_.clone()), options);
+  if (res.is_error()) {
+    return res.move_as_error();
+  }
+  boc_ = res.move_as_ok();
+  auto rc = boc_->get_root_count();
+  if (rc.is_error()) {
+    return rc.move_as_error();
+  }
+  if (rc.move_as_ok() != 1) {
+    return td::Status::Error(-668, "shardchain block BoC is invalid");
+  }
+  auto res3 = boc_->get_root_cell(0);
+  if (res3.is_error()) {
+    return res3.move_as_error();
+  }
+  root_ = res3.move_as_ok();
+  if (root_.is_null()) {
+    return td::Status::Error(-668, "cannot extract root cell out of a shardchain block BoC");
+  }
+  return td::Status::OK();
+}
+
+td::Result<td::Ref<BlockQ>> BlockQ::create(BlockIdExt id, td::BufferSlice data) {
+  td::Ref<BlockQ> res{true, id, std::move(data)};
+  auto err = res.unique_write().init();
+  if (err.is_error()) {
+    return err.move_as_error();
+  } else {
+    return std::move(res);
+  }
+}
+
+}  // namespace validator
+}  // namespace ton