vendor: revendor

Signed-off-by: Lucas Servén Marín <lserven@gmail.com>

vendor/github.com/metalmatze/signal/healthcheck/timeout.go

@@ -0,0 +1,52 @@
+// Copyright 2020 by the contributors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package healthcheck
+
+import (
+	"fmt"
+	"time"
+)
+
+// TimeoutError is the error returned when a Timeout-wrapped Check takes too long
+type timeoutError time.Duration
+
+func (e timeoutError) Error() string {
+	return fmt.Sprintf("timed out after %s", time.Duration(e).String())
+}
+
+// Timeout returns whether this error is a timeout (always true for timeoutError)
+func (e timeoutError) Timeout() bool {
+	return true
+}
+
+// Temporary returns whether this error is temporary (always true for timeoutError)
+func (e timeoutError) Temporary() bool {
+	return true
+}
+
+// Timeout adds a timeout to a Check. If the underlying check takes longer than
+// the timeout, it returns an error.
+func Timeout(check Check, timeout time.Duration) Check {
+	return func() error {
+		c := make(chan error, 1)
+		go func() { c <- check() }()
+		select {
+		case err := <-c:
+			return err
+		case <-time.After(timeout):
+			return timeoutError(timeout)
+		}
+	}
+}