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// Copyright 2020 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.
//go:build !race
// +build !race
package localpool
import (
"math/rand"
"runtime"
"sync"
"testing"
. "github.com/pingcap/check"
)
type Obj struct {
val int64
}
func TestT(t *testing.T) {
TestingT(t)
}
var _ = Suite(&testPoolSuite{})
type testPoolSuite struct {
}
func (s *testPoolSuite) TestPool(c *C) {
numWorkers := runtime.GOMAXPROCS(0)
wg := new(sync.WaitGroup)
wg.Add(numWorkers)
pool := NewLocalPool(16, func() interface{} {
return new(Obj)
}, nil)
n := 1000
for i := 0; i < numWorkers; i++ {
go func() {
for j := 0; j < n; j++ {
GetAndPut(pool)
}
wg.Done()
}()
}
wg.Wait()
var getHit, getMiss, putHit, putMiss int
for _, slot := range pool.slots {
getHit += slot.getHit
getMiss += slot.getMiss
putHit += slot.putHit
putMiss += slot.putMiss
}
c.Assert(getHit, Greater, getMiss)
c.Assert(putHit, Greater, putMiss)
}
func GetAndPut(pool *LocalPool) {
objs := make([]interface{}, rand.Intn(4)+1)
for i := 0; i < len(objs); i++ {
objs[i] = pool.Get()
}
runtime.Gosched()
for _, obj := range objs {
pool.Put(obj)
}
}