33 lines
843 B
Go
33 lines
843 B
Go
// nolint:nilaway - the context timeout here is reported as an error, even though it is a by-the-doc example
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package utils
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import (
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"context"
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"fmt"
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"time"
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)
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// TimeoutPolicy is an interface for enforcing common timeout patterns
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type TimeoutPolicy time.Duration
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// ExecuteAction runs a function and returns an error if it hasn't returned
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// by the time specified by TimeoutPolicy
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func (tp *TimeoutPolicy) ExecuteAction(action func() error) error {
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ctx, cancel := context.WithTimeout(context.Background(), time.Duration(*tp))
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defer cancel()
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// channel is buffered- this is important!
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c := make(chan error, 1)
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go func() {
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// this write is non-blocking as this goroutine has sole access to the channel
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c <- action()
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}()
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select {
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case err := <-c:
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return err
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case <-ctx.Done():
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return fmt.Errorf("ActionTimedOutError")
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}
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}
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