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os: add IsTimeout function

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Fixes build error: undefined: os.IsTimeout

Signed-off-by: Christian Stewart <christian@paral.in>
This commit is contained in:
Christian Stewart
2023-03-03 22:59:59 -08:00
committed by Ron Evans
parent 57ecf1acdc
commit 930255ff46
1 changed files with 5 additions and 0 deletions
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src/os/errors.go
+5
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@@ -92,6 +92,11 @@ func IsPermission(err error) bool {
return underlyingErrorIs(err, ErrPermission) return underlyingErrorIs(err, ErrPermission)
} }
func IsTimeout(err error) bool {
terr, ok := underlyingError(err).(timeout)
return ok && terr.Timeout()
}
func underlyingErrorIs(err, target error) bool { func underlyingErrorIs(err, target error) bool {
// Note that this function is not errors.Is: // Note that this function is not errors.Is:
// underlyingError only unwraps the specific error-wrapping types // underlyingError only unwraps the specific error-wrapping types