85 lines
2.2 KiB
Go
85 lines
2.2 KiB
Go
// Copyright 2022 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 gpool
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import (
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"errors"
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"sync/atomic"
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"time"
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atomicutil "go.uber.org/atomic"
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)
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const (
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// DefaultCleanIntervalTime is the interval time to clean up goroutines.
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DefaultCleanIntervalTime = 5 * time.Second
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// OPENED represents that the pool is opened.
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OPENED = iota
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// CLOSED represents that the pool is closed.
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CLOSED
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)
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var (
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// ErrPoolClosed will be returned when submitting task to a closed pool.
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ErrPoolClosed = errors.New("this pool has been closed")
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// ErrPoolOverload will be returned when the pool is full and no workers available.
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ErrPoolOverload = errors.New("too many goroutines blocked on submit or Nonblocking is set")
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// ErrProducerClosed will be returned when the producer is closed.
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ErrProducerClosed = errors.New("this producer has been closed")
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)
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// BasePool is base class of pool
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type BasePool struct {
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name string
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lastTuneTs atomicutil.Time
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generator atomic.Uint64
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}
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// NewBasePool is to create a new BasePool.
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func NewBasePool() BasePool {
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return BasePool{
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lastTuneTs: *atomicutil.NewTime(time.Now()),
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}
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}
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// SetName is to set name.
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func (p *BasePool) SetName(name string) {
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p.name = name
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}
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// Name is to get name.
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func (p *BasePool) Name() string {
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return p.name
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}
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// NewTaskID is to get a new task ID.
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func (p *BasePool) NewTaskID() uint64 {
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return p.generator.Add(1)
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}
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// LastTunerTs returns the last time when the pool was tuned.
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func (p *BasePool) LastTunerTs() time.Time {
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return p.lastTuneTs.Load()
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}
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// SetLastTuneTs sets the last time when the pool was tuned.
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func (p *BasePool) SetLastTuneTs(t time.Time) {
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p.lastTuneTs.Store(t)
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}
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