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117 lines
2.9 KiB
Go
117 lines
2.9 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. 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 conc
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import (
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"time"
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"github.com/panjf2000/ants/v2"
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/pkg/log"
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)
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type poolOption struct {
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// pre-allocs workers
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preAlloc bool
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// block or not when pool is full
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nonBlocking bool
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// duration to cleanup worker goroutine
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expiryDuration time.Duration
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// disable purge worker
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disablePurge bool
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// whether conceal panic when job has panic
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concealPanic bool
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// panicHandler when task panics
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panicHandler func(any)
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// preHandler function executed before actual method executed
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preHandler func()
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}
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func (opt *poolOption) antsOptions() []ants.Option {
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var result []ants.Option
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result = append(result, ants.WithPreAlloc(opt.preAlloc))
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result = append(result, ants.WithNonblocking(opt.nonBlocking))
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result = append(result, ants.WithDisablePurge(opt.disablePurge))
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// ants recovers panic by default
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// however the error is not returned
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result = append(result, ants.WithPanicHandler(func(v any) {
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log.Error("Conc pool panicked", zap.Any("panic", v))
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if !opt.concealPanic {
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panic(v)
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}
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}))
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if opt.panicHandler != nil {
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result = append(result, ants.WithPanicHandler(opt.panicHandler))
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}
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if opt.expiryDuration > 0 {
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result = append(result, ants.WithExpiryDuration(opt.expiryDuration))
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}
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return result
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}
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// PoolOption options function to setup pool.
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type PoolOption func(opt *poolOption)
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func defaultPoolOption() *poolOption {
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return &poolOption{
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preAlloc: false,
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nonBlocking: false,
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expiryDuration: 0,
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disablePurge: false,
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concealPanic: false,
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}
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}
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func WithPreAlloc(v bool) PoolOption {
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return func(opt *poolOption) {
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opt.preAlloc = v
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}
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}
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func WithNonBlocking(v bool) PoolOption {
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return func(opt *poolOption) {
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opt.nonBlocking = v
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}
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}
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func WithDisablePurge(v bool) PoolOption {
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return func(opt *poolOption) {
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opt.disablePurge = v
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}
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}
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func WithExpiryDuration(d time.Duration) PoolOption {
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return func(opt *poolOption) {
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opt.expiryDuration = d
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}
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}
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func WithConcealPanic(v bool) PoolOption {
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return func(opt *poolOption) {
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opt.concealPanic = v
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}
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}
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func WithPreHandler(fn func()) PoolOption {
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return func(opt *poolOption) {
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opt.preHandler = fn
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}
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}
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