/
driver.go
116 lines (99 loc) · 2.58 KB
/
driver.go
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// Copyright 2022 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package tests
import (
"context"
"time"
"github.com/pingcap/errors"
"github.com/pingcap/log"
"github.com/pingcap/tiflow/pkg/causality"
"go.uber.org/atomic"
"go.uber.org/zap"
)
type conflictTestDriver struct {
workers []*workerForTest
conflictDetector *causality.ConflictDetector[*txnForTest]
generator workloadGenerator
pendingCount atomic.Int64
}
//nolint:unparam
func newConflictTestDriver(
numWorkers int, numSlots int, workload workloadGenerator,
) *conflictTestDriver {
detector := causality.NewConflictDetector[*txnForTest](uint64(numSlots), causality.TxnCacheOption{
Count: numWorkers,
Size: 1024,
BlockStrategy: causality.BlockStrategyWaitAvailable,
})
workers := make([]*workerForTest, 0, numWorkers)
for i := 0; i < numWorkers; i++ {
id := int64(i)
workers = append(workers, newWorkerForTest(detector.GetOutChByCacheID(id)))
}
return &conflictTestDriver{
workers: workers,
conflictDetector: detector,
generator: workload,
}
}
func (d *conflictTestDriver) WithExecFunc(fn func(txn *txnForTest) error) *conflictTestDriver {
for _, worker := range d.workers {
worker.execFunc = fn
}
return d
}
func (d *conflictTestDriver) Run(ctx context.Context, n int) error {
statusTicker := time.NewTicker(1 * time.Second)
defer statusTicker.Stop()
var counter int
for {
select {
case <-ctx.Done():
return errors.Trace(ctx.Err())
case <-statusTicker.C:
log.Info("Generation progress", zap.Int("count", counter))
default:
}
txn := &txnForTest{
keys: d.generator.Next(),
done: func() {
d.pendingCount.Sub(1)
},
}
d.pendingCount.Add(1)
d.conflictDetector.Add(txn)
counter++
if counter > n {
return nil
}
}
}
func (d *conflictTestDriver) Wait(ctx context.Context) error {
for {
select {
case <-ctx.Done():
return errors.Trace(ctx.Err())
default:
}
if d.pendingCount.Load() == 0 {
return nil
}
time.Sleep(10 * time.Millisecond)
}
}
func (d *conflictTestDriver) Close() {
d.conflictDetector.Close()
for _, worker := range d.workers {
worker.Close()
}
}