internal.go

 1/*
 2 * Copyright 2024 gRPC authors.
 3 *
 4 * Licensed under the Apache License, Version 2.0 (the "License");
 5 * you may not use this file except in compliance with the License.
 6 * You may obtain a copy of the License at
 7 *
 8 *     http://www.apache.org/licenses/LICENSE-2.0
 9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16 */
17
18// Package internal contains code internal to the pickfirst package.
19package internal
20
21import (
22	rand "math/rand/v2"
23	"time"
24)
25
26var (
27	// RandShuffle pseudo-randomizes the order of addresses.
28	RandShuffle = rand.Shuffle
29	// TimeAfterFunc allows mocking the timer for testing connection delay
30	// related functionality.
31	TimeAfterFunc = func(d time.Duration, f func()) func() {
32		timer := time.AfterFunc(d, f)
33		return func() { timer.Stop() }
34	}
35)