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initial commit 2019-09-07 14:03:22 +04:00 • committed by vvaltman
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87
validator/downloaders/wait-block-state-merge.cpp Normal file
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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
*/
#include "wait-block-state-merge.hpp"
#include "wait-block-state.hpp"
#include "ton/ton-io.hpp"
namespace ton {
namespace validator {
void WaitBlockStateMerge::abort_query(td::Status reason) {
if (promise_) {
LOG(WARNING) << "aborting wait block state merge query for " << left_ << " and " << right_ << ": " << reason;
promise_.set_error(
reason.move_as_error_prefix(PSTRING() << "failed to download merge " << left_ << " and " << right_ << ": "));
}
stop();
}
void WaitBlockStateMerge::finish_query(td::Ref<ShardState> result) {
if (promise_) {
promise_.set_value(std::move(result));
}
stop();
}
void WaitBlockStateMerge::alarm() {
abort_query(td::Status::Error(ErrorCode::timeout, "timeout"));
}
void WaitBlockStateMerge::start_up() {
alarm_timestamp() = timeout_;
auto P_l = td::PromiseCreator::lambda([SelfId = actor_id(this)](td::Result<td::Ref<ShardState>> R) {
if (R.is_error()) {
td::actor::send_closure(SelfId, &WaitBlockStateMerge::abort_query, R.move_as_error());
} else {
td::actor::send_closure(SelfId, &WaitBlockStateMerge::got_answer, true, R.move_as_ok());
}
});
td::actor::send_closure(manager_, &ValidatorManager::wait_block_state_short, left_, priority_, timeout_,
std::move(P_l));
auto P_r = td::PromiseCreator::lambda([SelfId = actor_id(this)](td::Result<td::Ref<ShardState>> R) {
if (R.is_error()) {
td::actor::send_closure(SelfId, &WaitBlockStateMerge::abort_query, R.move_as_error());
} else {
td::actor::send_closure(SelfId, &WaitBlockStateMerge::got_answer, false, R.move_as_ok());
}
});
td::actor::send_closure(manager_, &ValidatorManager::wait_block_state_short, right_, priority_, timeout_,
std::move(P_r));
}
void WaitBlockStateMerge::got_answer(bool left, td::Ref<ShardState> state) {
(left ? left_state_ : right_state_) = std::move(state);
if (left_state_.not_null() && right_state_.not_null()) {
auto R = left_state_->merge_with(*right_state_.get());
if (R.is_error()) {
abort_query(R.move_as_error_prefix("failed to merge states: "));
} else {
finish_query(R.move_as_ok());
}
}
}
} // namespace validator
} // namespace ton