mirror of https://gitee.com/bigwinds/arangodb
46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2017 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Daniel H. Larkin
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////////////////////////////////////////////////////////////////////////////////
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#include "Cache/TransactionWindow.h"
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#include <stdint.h>
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#include <atomic>
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using namespace arangodb::cache;
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TransactionWindow::TransactionWindow() : _open(0), _term(0) {}
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void TransactionWindow::start() {
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if (++_open == 1) {
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_term++;
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}
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}
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void TransactionWindow::end() {
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if (--_open == 0) {
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_term++;
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}
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}
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uint64_t TransactionWindow::term() { return _term.load(); }
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