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pool_context.go
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/
pool_context.go
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package main
import (
"context"
"fmt"
"os"
"os/signal"
"time"
"github.com/alitto/pond"
)
// Pressing Ctrl+C while this program is running will cause the program to terminate gracefully.
// Tasks being processed will continue until they finish, but queued tasks are cancelled.
func main() {
// Create a context that will be cancelled when the user presses Ctrl+C (process receives termination signal).
ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt)
defer stop()
// Create a pool and pass the context to it.
pool := pond.New(1, 1000, pond.Context(ctx))
defer pool.StopAndWait()
// Submit several long runnning tasks
var count int = 100
for i := 0; i < count; i++ {
n := i
pool.Submit(func() {
fmt.Printf("Task #%d started\n", n)
time.Sleep(1 * time.Second)
fmt.Printf("Task #%d finished\n", n)
})
}
}