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WorkerPool.go
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WorkerPool.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
*
* https://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, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package pool
import (
"context"
"io"
"time"
"github.com/apache/plc4x/plc4go/spi/options"
)
type Runnable func()
type CompletionFuture interface {
AwaitCompletion(ctx context.Context) error
Cancel(interrupt bool, err error)
}
type Executor interface {
io.Closer
Start()
Stop()
Submit(ctx context.Context, workItemId int32, runnable Runnable) CompletionFuture
IsRunning() bool
}
func NewFixedSizeExecutor(numberOfWorkers, queueDepth int, _options ...options.WithOption) Executor {
customLogger := options.ExtractCustomLoggerOrDefaultToGlobal(_options...)
_executor := newExecutor(queueDepth, numberOfWorkers, customLogger)
_executor.traceWorkers, _ = options.ExtractTracerWorkers(_options...)
return _executor
}
func NewDynamicExecutor(maxNumberOfWorkers, queueDepth int, _options ...options.WithOption) Executor {
customLogger := options.ExtractCustomLoggerOrDefaultToGlobal(_options...)
_executor := newDynamicExecutor(queueDepth, maxNumberOfWorkers, customLogger)
_executor.traceWorkers, _ = options.ExtractTracerWorkers(_options...)
// We spawn one initial worker
w := newWorker(customLogger, 0, _executor)
w.lastReceived.Store(time.Now()) // We store the current timestamp so the worker isn't cut of instantly by the worker killer
_executor.worker = append(_executor.worker, w)
return _executor
}