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30 lines
589 B
Go
30 lines
589 B
Go
package main
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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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var timerSinceCtxKey = ctxKey("timerSince")
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func startTimer(d time.Duration) (context.Context, context.CancelFunc) {
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return context.WithTimeout(
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context.WithValue(context.Background(), timerSinceCtxKey, time.Now()),
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d,
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)
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}
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func getTimerSince(ctx context.Context) time.Duration {
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return time.Since(ctx.Value(timerSinceCtxKey).(time.Time))
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}
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func checkTimeout(ctx context.Context) {
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select {
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case <-ctx.Done():
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panic(newError(503, fmt.Sprintf("Timeout after %v", getTimerSince(ctx)), "Timeout"))
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default:
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// Go ahead
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}
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}
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