forked from grab/async
/
repeat.go
41 lines (35 loc) · 942 Bytes
/
repeat.go
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// Copyright (c) 2022 James Tran Dung, All rights reserved.
// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file
package async
import (
"context"
"fmt"
"log"
"runtime/debug"
"time"
)
// Repeat executes the given SilentWork asynchronously on a pre-determined interval.
func Repeat(ctx context.Context, interval time.Duration, action SilentWork) SilentTask {
safeAction := func(ctx context.Context) (err error) {
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("panic repeating task: %v \n %s", r, debug.Stack())
}
}()
return action(ctx)
}
return InvokeInSilence(
ctx, func(taskCtx context.Context) error {
for {
select {
case <-taskCtx.Done():
return taskCtx.Err()
case <-time.After(interval):
if err := safeAction(taskCtx); err != nil {
log.Printf("error repeating task: %s", err.Error())
}
}
}
},
)
}