1 // Copyright 2015 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
4 5 package net
6 7 import (
8 "context"
9 )
10 11 var (
12 // if non-nil, overrides dialTCP.
13 testHookDialTCP func(ctx context.Context, net []byte, laddr, raddr *TCPAddr) (*TCPConn, error)
14 15 testHookLookupIP = func(
16 ctx context.Context,
17 fn func(context.Context, []byte, []byte) ([]IPAddr, error),
18 network []byte,
19 host []byte,
20 ) ([]IPAddr, error) {
21 return fn(ctx, network, host)
22 }
23 testPreHookSetKeepAlive = func(*netFD) {}
24 testHookSetKeepAlive = func(KeepAliveConfig) {}
25 26 // testHookStepTime sleeps until time has moved forward by a nonzero amount.
27 // This helps to avoid flakes in timeout tests by ensuring that an implausibly
28 // short deadline (such as 1ns in the future) is always expired by the time
29 // a relevant system call occurs.
30 testHookStepTime = func() {}
31 )
32