mirror of https://gitee.com/bigwinds/arangodb
111 lines
3.2 KiB
C++
111 lines
3.2 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2018 ArangoDB 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 Michael Hackstein
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////////////////////////////////////////////////////////////////////////////////
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#include "WaitingExecutionBlockMock.h"
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#include "Aql/AqlItemBlock.h"
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#include "Aql/ExecutionState.h"
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#include <velocypack/velocypack-aliases.h>
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using namespace arangodb;
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using namespace arangodb::aql;
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using namespace arangodb::tests;
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using namespace arangodb::tests::aql;
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WaitingExecutionBlockMock::WaitingExecutionBlockMock(
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ExecutionEngine* engine, ExecutionNode const* node,
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std::deque<std::unique_ptr<AqlItemBlock>> &&data)
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: ExecutionBlock(engine, node),
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_data(std::move(data)),
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_resourceMonitor(),
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_inflight(0),
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_hasWaited(false) {}
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std::pair<arangodb::aql::ExecutionState, arangodb::Result> WaitingExecutionBlockMock::initializeCursor(
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arangodb::aql::AqlItemBlock* items, size_t pos) {
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if (!_hasWaited) {
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_hasWaited = true;
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return {ExecutionState::WAITING, TRI_ERROR_NO_ERROR};
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}
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_hasWaited = false;
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_inflight = 0;
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return {ExecutionState::DONE, TRI_ERROR_NO_ERROR};
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}
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std::pair<arangodb::aql::ExecutionState,
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std::unique_ptr<arangodb::aql::AqlItemBlock>>
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WaitingExecutionBlockMock::getSome(size_t atMost) {
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if (!_hasWaited) {
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_hasWaited = true;
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if (_returnedDone) {
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return {ExecutionState::DONE, nullptr};
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}
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return {ExecutionState::WAITING, nullptr};
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}
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_hasWaited = false;
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if (_data.empty()) {
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_returnedDone = true;
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return {ExecutionState::DONE, nullptr};
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}
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auto result = std::move(_data.front());
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_data.pop_front();
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if (_data.empty()) {
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_returnedDone = true;
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return {ExecutionState::DONE, std::move(result)};
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} else {
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return {ExecutionState::HASMORE, std::move(result)};
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}
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}
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std::pair<arangodb::aql::ExecutionState, size_t> WaitingExecutionBlockMock::skipSome(
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size_t atMost
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) {
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traceSkipSomeBegin(atMost);
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if (!_hasWaited) {
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_hasWaited = true;
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traceSkipSomeEnd(0, ExecutionState::WAITING);
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return {ExecutionState::WAITING, 0};
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}
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_hasWaited = false;
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if (_data.empty()) {
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traceSkipSomeEnd(0, ExecutionState::DONE);
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return {ExecutionState::DONE, 0};
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}
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size_t skipped = _data.front()->size();
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_data.pop_front();
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if (_data.empty()) {
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traceSkipSomeEnd(skipped, ExecutionState::DONE);
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return {ExecutionState::DONE, skipped};
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} else {
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traceSkipSomeEnd(skipped, ExecutionState::HASMORE);
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return {ExecutionState::HASMORE, skipped};
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}
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}
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