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Add goroutine pool option #1

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Add goroutine pool option #1

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4d41c03
Add goroutine pool option
ehsansouri23 Jan 29, 2024
1e0087d
Adding and doing waitgroup
ehsansouri23 Feb 6, 2024
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51 changes: 39 additions & 12 deletions worker/worker.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,16 +2,25 @@ package worker

import "sync"

const (
WithoutGoroutinePool = -1
)

type Handler[I any, O any] func(I) O

type Worker[I any, O any] struct {
wg sync.WaitGroup
jobChan chan I
resultChan chan O
wg sync.WaitGroup
jobChan chan I
resultChan chan O
handler Handler[I, O]
maxGoroutines int
}

func NewWorker[I any, O any]() *Worker[I, O] {
func NewWorker[I any, O any](maxGoroutines int) *Worker[I, O] {
return &Worker[I, O]{
jobChan: make(chan I),
resultChan: make(chan O),
jobChan: make(chan I),
resultChan: make(chan O),
maxGoroutines: maxGoroutines,
}
}

Expand All @@ -26,15 +35,33 @@ func (w *Worker[I, O]) Wait() {
}

func (w *Worker[I, O]) SubmitJob(job I) {
w.wg.Add(1)
w.jobChan <- job
}

func (w *Worker[I, O]) HandleJobs(function func(I) O) {
func (w *Worker[I, O]) SetHandler(handler Handler[I, O]) {
w.handler = handler
}

func (w *Worker[I, O]) workerGoroutine(id int) {
defer w.wg.Done()
for job := range w.jobChan {
go func(job I) {
w.resultChan <- function(job)
w.wg.Done()
}(job)
w.resultChan <- w.handler(job)
w.wg.Done()
}
}

func (w *Worker[I, O]) HandleJobs() {
if w.maxGoroutines == WithoutGoroutinePool {
for job := range w.jobChan {
go func(job I) {
w.resultChan <- w.handler(job)
w.wg.Done()
}(job)
}
} else {
for i := 1; i <= w.maxGoroutines; i++ {
w.wg.Add(1)
go w.workerGoroutine(i)
}
}
}