Goroutines pool with priority queue buffer.

--- ## Overview Package `priopool` provides goroutines pool based on [panjf2000/ants](https://github.com/panjf2000/ants) library with priority queue buffer based on [stdlib heap](https://pkg.go.dev/container/heap) package. Priority pool: - is non-blocking, - prioritizes tasks with higher priority value, - can be configured with unlimited queue buffer. ## Install ``` go get -u git.alexvan.in/alexvanin/priopool ``` ## Example ```go package main import ( "fmt" "log" "sync" "time" "git.alexvan.in/alexvanin/priopool" ) func main() { regularJob := func(i int) { time.Sleep(1 * time.Second) fmt.Printf("Job %d is done\n", i) } highPriorityJob := func() { fmt.Println("High priority job is done") } pool, err := priopool.New(2, -1) // pool for two parallel executions if err != nil { log.Fatal(err) } wg := new(sync.WaitGroup) wg.Add(5 + 1) for i := 0; i < 5; i++ { ind := i + 1 // enqueue 5 regular jobs pool.Submit(1, func() { regularJob(ind); wg.Done() }) } // after 5 regular jobs enqueue high priority job pool.Submit(10, func() { highPriorityJob(); wg.Done() }) wg.Wait() /* Output: Job 2 is done Job 1 is done High priority job is done Job 4 is done Job 3 is done Job 5 is done */ } ``` ## License Source code is available under the [MIT License](/LICENSE).