58 lines
1.6 KiB
Go
58 lines
1.6 KiB
Go
// Copyright 2023 PingCAP, Inc.
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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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package aggregate
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import (
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"github.com/pingcap/tidb/pkg/executor/aggfuncs"
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"github.com/pingcap/tidb/pkg/util/memory"
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)
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// baseHashAggWorker stores the common attributes of HashAggFinalWorker and HashAggPartialWorker.
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// nolint:structcheck
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type baseHashAggWorker struct {
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finishCh <-chan struct{}
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aggFuncs []aggfuncs.AggFunc
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maxChunkSize int
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stats *AggWorkerStat
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memTracker *memory.Tracker
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}
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func newBaseHashAggWorker(finishCh <-chan struct{}, aggFuncs []aggfuncs.AggFunc, maxChunkSize int, memTrack *memory.Tracker) baseHashAggWorker {
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baseWorker := baseHashAggWorker{
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finishCh: finishCh,
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aggFuncs: aggFuncs,
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maxChunkSize: maxChunkSize,
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memTracker: memTrack,
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}
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return baseWorker
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}
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func (w *baseHashAggWorker) getPartialResultSliceLenConsiderByteAlign() int {
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length := len(w.aggFuncs)
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if length == 1 {
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return 1
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}
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return length + length&1
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}
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func (w *baseHashAggWorker) checkFinishChClosed() bool {
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select {
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case <-w.finishCh:
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return true
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default:
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}
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return false
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}
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