Exemple #1
0
// LogError logs the error to the owner of the context.
//
// If this context was created with ContextWithErrorLog, then this method
// passes the error to context creator over an unbuffered channel.
//
// If this context was created by other means, this method is a no-op.
func LogError(ctx context.Context, err error) {
	v := ctx.Value(errLogKey)
	errs, ok := v.(privateChanType)
	if !ok {
		return
	}
	errs <- err
}
Exemple #2
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// setting the TTL on published records is an experimental feature.
// as such, i'm using the context to wire it through to avoid changing too
// much code along the way.
func checkCtxTTL(ctx context.Context) (time.Duration, bool) {
	v := ctx.Value("ipns-publish-ttl")
	if v == nil {
		return 0, false
	}

	d, ok := v.(time.Duration)
	return d, ok
}
Exemple #3
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func MetadataFromContext(ctx context.Context) (Metadata, error) {
	value := ctx.Value(metadataKey)
	if value != nil {
		metadata, ok := value.(Metadata)
		if ok {
			return metadata, nil
		}
	}
	return nil, errors.New("context contains no metadata")
}
Exemple #4
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func PublishQueryEvent(ctx context.Context, ev *QueryEvent) {
	ich := ctx.Value(RoutingQueryKey)
	if ich == nil {
		return
	}

	ch, ok := ich.(chan<- *QueryEvent)
	if !ok {
		return
	}

	select {
	case ch <- ev:
	case <-ctx.Done():
	}
}