mirror of
https://github.com/Control-D-Inc/ctrld.git
synced 2026-05-15 00:50:25 +02:00
Cuong Manh Le
e6800fbc82
So we don't have to worry about network stack changes causes an upstream to be broken. Just send requests to all nameservers concurrently, and get the first success response.
44 lines
640 B
Go
44 lines
640 B
Go
package ctrld
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// TODO(cuonglm): use stdlib once we bump minimum version to 1.20
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func joinErrors(errs ...error) error {
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n := 0
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for _, err := range errs {
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if err != nil {
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n++
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}
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}
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if n == 0 {
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return nil
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}
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e := &joinError{
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errs: make([]error, 0, n),
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}
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for _, err := range errs {
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if err != nil {
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e.errs = append(e.errs, err)
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}
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}
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return e
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}
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type joinError struct {
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errs []error
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}
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func (e *joinError) Error() string {
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var b []byte
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for i, err := range e.errs {
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if i > 0 {
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b = append(b, '\n')
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}
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b = append(b, err.Error()...)
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}
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return string(b)
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}
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func (e *joinError) Unwrap() []error {
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return e.errs
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}
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