mirror of git://gcc.gnu.org/git/gcc.git
1092 lines
24 KiB
Go
1092 lines
24 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package net
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import (
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"context"
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"fmt"
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"internal/testenv"
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"io"
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"io/ioutil"
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"net/internal/socktest"
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"runtime"
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"sync"
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"testing"
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"time"
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)
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var dialTimeoutTests = []struct {
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timeout time.Duration
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delta time.Duration // for deadline
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guard time.Duration
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max time.Duration
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}{
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// Tests that dial timeouts, deadlines in the past work.
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{-5 * time.Second, 0, -5 * time.Second, 100 * time.Millisecond},
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{0, -5 * time.Second, -5 * time.Second, 100 * time.Millisecond},
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{-5 * time.Second, 5 * time.Second, -5 * time.Second, 100 * time.Millisecond}, // timeout over deadline
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{-1 << 63, 0, time.Second, 100 * time.Millisecond},
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{0, -1 << 63, time.Second, 100 * time.Millisecond},
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{50 * time.Millisecond, 0, 100 * time.Millisecond, time.Second},
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{0, 50 * time.Millisecond, 100 * time.Millisecond, time.Second},
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{50 * time.Millisecond, 5 * time.Second, 100 * time.Millisecond, time.Second}, // timeout over deadline
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}
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func TestDialTimeout(t *testing.T) {
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// Cannot use t.Parallel - modifies global hooks.
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origTestHookDialChannel := testHookDialChannel
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defer func() { testHookDialChannel = origTestHookDialChannel }()
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defer sw.Set(socktest.FilterConnect, nil)
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for i, tt := range dialTimeoutTests {
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switch runtime.GOOS {
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case "plan9", "windows":
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testHookDialChannel = func() { time.Sleep(tt.guard) }
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if runtime.GOOS == "plan9" {
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break
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}
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fallthrough
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default:
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sw.Set(socktest.FilterConnect, func(so *socktest.Status) (socktest.AfterFilter, error) {
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time.Sleep(tt.guard)
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return nil, errTimedout
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})
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}
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ch := make(chan error)
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d := Dialer{Timeout: tt.timeout}
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if tt.delta != 0 {
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d.Deadline = time.Now().Add(tt.delta)
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}
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max := time.NewTimer(tt.max)
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defer max.Stop()
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go func() {
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// This dial never starts to send any TCP SYN
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// segment because of above socket filter and
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// test hook.
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c, err := d.Dial("tcp", "127.0.0.1:0")
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if err == nil {
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err = fmt.Errorf("unexpectedly established: tcp:%s->%s", c.LocalAddr(), c.RemoteAddr())
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c.Close()
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}
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ch <- err
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}()
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select {
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case <-max.C:
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t.Fatalf("#%d: Dial didn't return in an expected time", i)
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case err := <-ch:
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if perr := parseDialError(err); perr != nil {
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t.Errorf("#%d: %v", i, perr)
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}
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if nerr, ok := err.(Error); !ok || !nerr.Timeout() {
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t.Fatalf("#%d: %v", i, err)
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}
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}
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}
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}
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var dialTimeoutMaxDurationTests = []struct {
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timeout time.Duration
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delta time.Duration // for deadline
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}{
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// Large timeouts that will overflow an int64 unix nanos.
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{1<<63 - 1, 0},
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{0, 1<<63 - 1},
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}
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func TestDialTimeoutMaxDuration(t *testing.T) {
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if runtime.GOOS == "openbsd" {
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testenv.SkipFlaky(t, 15157)
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}
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ln, err := newLocalListener("tcp")
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if err != nil {
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t.Fatal(err)
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}
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defer ln.Close()
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for i, tt := range dialTimeoutMaxDurationTests {
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ch := make(chan error)
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max := time.NewTimer(250 * time.Millisecond)
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defer max.Stop()
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go func() {
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d := Dialer{Timeout: tt.timeout}
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if tt.delta != 0 {
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d.Deadline = time.Now().Add(tt.delta)
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}
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c, err := d.Dial(ln.Addr().Network(), ln.Addr().String())
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if err == nil {
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c.Close()
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}
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ch <- err
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}()
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select {
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case <-max.C:
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t.Fatalf("#%d: Dial didn't return in an expected time", i)
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case err := <-ch:
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if perr := parseDialError(err); perr != nil {
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t.Error(perr)
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}
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if err != nil {
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t.Errorf("#%d: %v", i, err)
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}
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}
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}
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}
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var acceptTimeoutTests = []struct {
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timeout time.Duration
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xerrs [2]error // expected errors in transition
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}{
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// Tests that accept deadlines in the past work, even if
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// there's incoming connections available.
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{-5 * time.Second, [2]error{errTimeout, errTimeout}},
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{50 * time.Millisecond, [2]error{nil, errTimeout}},
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}
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func TestAcceptTimeout(t *testing.T) {
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t.Parallel()
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switch runtime.GOOS {
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case "plan9":
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t.Skipf("not supported on %s", runtime.GOOS)
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}
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ln, err := newLocalListener("tcp")
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if err != nil {
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t.Fatal(err)
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}
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defer ln.Close()
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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for i, tt := range acceptTimeoutTests {
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if tt.timeout < 0 {
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go func() {
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var d Dialer
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c, err := d.DialContext(ctx, ln.Addr().Network(), ln.Addr().String())
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if err != nil {
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t.Error(err)
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return
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}
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var b [1]byte
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c.Read(b[:])
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c.Close()
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}()
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}
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if err := ln.(*TCPListener).SetDeadline(time.Now().Add(tt.timeout)); err != nil {
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t.Fatalf("$%d: %v", i, err)
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}
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for j, xerr := range tt.xerrs {
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for {
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c, err := ln.Accept()
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if xerr != nil {
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if perr := parseAcceptError(err); perr != nil {
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t.Errorf("#%d/%d: %v", i, j, perr)
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}
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if nerr, ok := err.(Error); !ok || !nerr.Timeout() {
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t.Fatalf("#%d/%d: %v", i, j, err)
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}
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}
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if err == nil {
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c.Close()
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time.Sleep(tt.timeout / 3)
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continue
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}
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break
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}
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}
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}
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}
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func TestAcceptTimeoutMustReturn(t *testing.T) {
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t.Parallel()
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switch runtime.GOOS {
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case "plan9":
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t.Skipf("not supported on %s", runtime.GOOS)
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}
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ln, err := newLocalListener("tcp")
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if err != nil {
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t.Fatal(err)
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}
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defer ln.Close()
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max := time.NewTimer(time.Second)
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defer max.Stop()
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ch := make(chan error)
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go func() {
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if err := ln.(*TCPListener).SetDeadline(noDeadline); err != nil {
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t.Error(err)
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}
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if err := ln.(*TCPListener).SetDeadline(time.Now().Add(10 * time.Millisecond)); err != nil {
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t.Error(err)
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}
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c, err := ln.Accept()
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if err == nil {
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c.Close()
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}
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ch <- err
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}()
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select {
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case <-max.C:
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ln.Close()
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<-ch // wait for tester goroutine to stop
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t.Fatal("Accept didn't return in an expected time")
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case err := <-ch:
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if perr := parseAcceptError(err); perr != nil {
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t.Error(perr)
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}
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if nerr, ok := err.(Error); !ok || !nerr.Timeout() {
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t.Fatal(err)
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}
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}
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}
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func TestAcceptTimeoutMustNotReturn(t *testing.T) {
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t.Parallel()
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switch runtime.GOOS {
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case "plan9":
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t.Skipf("not supported on %s", runtime.GOOS)
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}
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ln, err := newLocalListener("tcp")
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if err != nil {
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t.Fatal(err)
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}
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defer ln.Close()
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max := time.NewTimer(100 * time.Millisecond)
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defer max.Stop()
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ch := make(chan error)
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go func() {
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if err := ln.(*TCPListener).SetDeadline(time.Now().Add(-5 * time.Second)); err != nil {
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t.Error(err)
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}
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if err := ln.(*TCPListener).SetDeadline(noDeadline); err != nil {
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t.Error(err)
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}
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_, err := ln.Accept()
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ch <- err
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}()
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select {
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case err := <-ch:
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if perr := parseAcceptError(err); perr != nil {
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t.Error(perr)
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}
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t.Fatalf("expected Accept to not return, but it returned with %v", err)
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case <-max.C:
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ln.Close()
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<-ch // wait for tester goroutine to stop
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}
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}
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var readTimeoutTests = []struct {
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timeout time.Duration
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xerrs [2]error // expected errors in transition
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}{
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// Tests that read deadlines work, even if there's data ready
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// to be read.
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{-5 * time.Second, [2]error{errTimeout, errTimeout}},
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{50 * time.Millisecond, [2]error{nil, errTimeout}},
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}
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func TestReadTimeout(t *testing.T) {
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switch runtime.GOOS {
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case "plan9":
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t.Skipf("not supported on %s", runtime.GOOS)
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}
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handler := func(ls *localServer, ln Listener) {
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c, err := ln.Accept()
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if err != nil {
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t.Error(err)
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return
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}
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c.Write([]byte("READ TIMEOUT TEST"))
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defer c.Close()
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}
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ls, err := newLocalServer("tcp")
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if err != nil {
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t.Fatal(err)
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}
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defer ls.teardown()
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if err := ls.buildup(handler); err != nil {
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t.Fatal(err)
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}
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c, err := Dial(ls.Listener.Addr().Network(), ls.Listener.Addr().String())
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if err != nil {
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t.Fatal(err)
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}
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defer c.Close()
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for i, tt := range readTimeoutTests {
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if err := c.SetReadDeadline(time.Now().Add(tt.timeout)); err != nil {
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t.Fatalf("#%d: %v", i, err)
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}
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var b [1]byte
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for j, xerr := range tt.xerrs {
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for {
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n, err := c.Read(b[:])
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if xerr != nil {
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if perr := parseReadError(err); perr != nil {
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t.Errorf("#%d/%d: %v", i, j, perr)
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}
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if nerr, ok := err.(Error); !ok || !nerr.Timeout() {
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t.Fatalf("#%d/%d: %v", i, j, err)
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}
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}
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if err == nil {
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time.Sleep(tt.timeout / 3)
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continue
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}
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if n != 0 {
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t.Fatalf("#%d/%d: read %d; want 0", i, j, n)
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}
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break
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}
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}
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}
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}
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func TestReadTimeoutMustNotReturn(t *testing.T) {
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t.Parallel()
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switch runtime.GOOS {
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case "plan9":
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t.Skipf("not supported on %s", runtime.GOOS)
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}
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ln, err := newLocalListener("tcp")
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if err != nil {
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t.Fatal(err)
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}
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defer ln.Close()
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c, err := Dial(ln.Addr().Network(), ln.Addr().String())
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if err != nil {
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t.Fatal(err)
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}
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defer c.Close()
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max := time.NewTimer(100 * time.Millisecond)
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defer max.Stop()
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ch := make(chan error)
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go func() {
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if err := c.SetDeadline(time.Now().Add(-5 * time.Second)); err != nil {
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t.Error(err)
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}
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if err := c.SetWriteDeadline(time.Now().Add(-5 * time.Second)); err != nil {
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t.Error(err)
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}
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if err := c.SetReadDeadline(noDeadline); err != nil {
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t.Error(err)
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}
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var b [1]byte
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_, err := c.Read(b[:])
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ch <- err
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}()
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select {
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case err := <-ch:
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if perr := parseReadError(err); perr != nil {
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t.Error(perr)
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}
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t.Fatalf("expected Read to not return, but it returned with %v", err)
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case <-max.C:
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c.Close()
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err := <-ch // wait for tester goroutine to stop
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if perr := parseReadError(err); perr != nil {
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t.Error(perr)
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}
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if err == io.EOF && runtime.GOOS == "nacl" { // see golang.org/issue/8044
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return
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}
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if nerr, ok := err.(Error); !ok || nerr.Timeout() || nerr.Temporary() {
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t.Fatal(err)
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}
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}
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}
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var readFromTimeoutTests = []struct {
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timeout time.Duration
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xerrs [2]error // expected errors in transition
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}{
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// Tests that read deadlines work, even if there's data ready
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// to be read.
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{-5 * time.Second, [2]error{errTimeout, errTimeout}},
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{50 * time.Millisecond, [2]error{nil, errTimeout}},
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}
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func TestReadFromTimeout(t *testing.T) {
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switch runtime.GOOS {
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case "nacl", "plan9":
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t.Skipf("not supported on %s", runtime.GOOS) // see golang.org/issue/8916
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}
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ch := make(chan Addr)
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defer close(ch)
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handler := func(ls *localPacketServer, c PacketConn) {
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if dst, ok := <-ch; ok {
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c.WriteTo([]byte("READFROM TIMEOUT TEST"), dst)
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}
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}
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ls, err := newLocalPacketServer("udp")
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if err != nil {
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t.Fatal(err)
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}
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defer ls.teardown()
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if err := ls.buildup(handler); err != nil {
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t.Fatal(err)
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}
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host, _, err := SplitHostPort(ls.PacketConn.LocalAddr().String())
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if err != nil {
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t.Fatal(err)
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}
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c, err := ListenPacket(ls.PacketConn.LocalAddr().Network(), JoinHostPort(host, "0"))
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if err != nil {
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t.Fatal(err)
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}
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defer c.Close()
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ch <- c.LocalAddr()
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for i, tt := range readFromTimeoutTests {
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if err := c.SetReadDeadline(time.Now().Add(tt.timeout)); err != nil {
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t.Fatalf("#%d: %v", i, err)
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}
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var b [1]byte
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for j, xerr := range tt.xerrs {
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for {
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n, _, err := c.ReadFrom(b[:])
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if xerr != nil {
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if perr := parseReadError(err); perr != nil {
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t.Errorf("#%d/%d: %v", i, j, perr)
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}
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if nerr, ok := err.(Error); !ok || !nerr.Timeout() {
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t.Fatalf("#%d/%d: %v", i, j, err)
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}
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}
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if err == nil {
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time.Sleep(tt.timeout / 3)
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continue
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}
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if n != 0 {
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t.Fatalf("#%d/%d: read %d; want 0", i, j, n)
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}
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break
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}
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}
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}
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}
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var writeTimeoutTests = []struct {
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timeout time.Duration
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xerrs [2]error // expected errors in transition
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}{
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// Tests that write deadlines work, even if there's buffer
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// space available to write.
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{-5 * time.Second, [2]error{errTimeout, errTimeout}},
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{10 * time.Millisecond, [2]error{nil, errTimeout}},
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}
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func TestWriteTimeout(t *testing.T) {
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t.Parallel()
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switch runtime.GOOS {
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case "plan9":
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t.Skipf("not supported on %s", runtime.GOOS)
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}
|
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|
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ln, err := newLocalListener("tcp")
|
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if err != nil {
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t.Fatal(err)
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}
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defer ln.Close()
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for i, tt := range writeTimeoutTests {
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c, err := Dial(ln.Addr().Network(), ln.Addr().String())
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if err != nil {
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t.Fatal(err)
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}
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defer c.Close()
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if err := c.SetWriteDeadline(time.Now().Add(tt.timeout)); err != nil {
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t.Fatalf("#%d: %v", i, err)
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}
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for j, xerr := range tt.xerrs {
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for {
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n, err := c.Write([]byte("WRITE TIMEOUT TEST"))
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if xerr != nil {
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if perr := parseWriteError(err); perr != nil {
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t.Errorf("#%d/%d: %v", i, j, perr)
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}
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if nerr, ok := err.(Error); !ok || !nerr.Timeout() {
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t.Fatalf("#%d/%d: %v", i, j, err)
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}
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}
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if err == nil {
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time.Sleep(tt.timeout / 3)
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continue
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}
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if n != 0 {
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t.Fatalf("#%d/%d: wrote %d; want 0", i, j, n)
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}
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break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestWriteTimeoutMustNotReturn(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
switch runtime.GOOS {
|
|
case "plan9":
|
|
t.Skipf("not supported on %s", runtime.GOOS)
|
|
}
|
|
|
|
ln, err := newLocalListener("tcp")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer ln.Close()
|
|
|
|
c, err := Dial(ln.Addr().Network(), ln.Addr().String())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer c.Close()
|
|
|
|
max := time.NewTimer(100 * time.Millisecond)
|
|
defer max.Stop()
|
|
ch := make(chan error)
|
|
go func() {
|
|
if err := c.SetDeadline(time.Now().Add(-5 * time.Second)); err != nil {
|
|
t.Error(err)
|
|
}
|
|
if err := c.SetReadDeadline(time.Now().Add(-5 * time.Second)); err != nil {
|
|
t.Error(err)
|
|
}
|
|
if err := c.SetWriteDeadline(noDeadline); err != nil {
|
|
t.Error(err)
|
|
}
|
|
var b [1]byte
|
|
for {
|
|
if _, err := c.Write(b[:]); err != nil {
|
|
ch <- err
|
|
break
|
|
}
|
|
}
|
|
}()
|
|
|
|
select {
|
|
case err := <-ch:
|
|
if perr := parseWriteError(err); perr != nil {
|
|
t.Error(perr)
|
|
}
|
|
t.Fatalf("expected Write to not return, but it returned with %v", err)
|
|
case <-max.C:
|
|
c.Close()
|
|
err := <-ch // wait for tester goroutine to stop
|
|
if perr := parseWriteError(err); perr != nil {
|
|
t.Error(perr)
|
|
}
|
|
if nerr, ok := err.(Error); !ok || nerr.Timeout() || nerr.Temporary() {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
var writeToTimeoutTests = []struct {
|
|
timeout time.Duration
|
|
xerrs [2]error // expected errors in transition
|
|
}{
|
|
// Tests that write deadlines work, even if there's buffer
|
|
// space available to write.
|
|
{-5 * time.Second, [2]error{errTimeout, errTimeout}},
|
|
|
|
{10 * time.Millisecond, [2]error{nil, errTimeout}},
|
|
}
|
|
|
|
func TestWriteToTimeout(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
switch runtime.GOOS {
|
|
case "nacl", "plan9":
|
|
t.Skipf("not supported on %s", runtime.GOOS)
|
|
}
|
|
|
|
c1, err := newLocalPacketListener("udp")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer c1.Close()
|
|
|
|
host, _, err := SplitHostPort(c1.LocalAddr().String())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
for i, tt := range writeToTimeoutTests {
|
|
c2, err := ListenPacket(c1.LocalAddr().Network(), JoinHostPort(host, "0"))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer c2.Close()
|
|
|
|
if err := c2.SetWriteDeadline(time.Now().Add(tt.timeout)); err != nil {
|
|
t.Fatalf("#%d: %v", i, err)
|
|
}
|
|
for j, xerr := range tt.xerrs {
|
|
for {
|
|
n, err := c2.WriteTo([]byte("WRITETO TIMEOUT TEST"), c1.LocalAddr())
|
|
if xerr != nil {
|
|
if perr := parseWriteError(err); perr != nil {
|
|
t.Errorf("#%d/%d: %v", i, j, perr)
|
|
}
|
|
if nerr, ok := err.(Error); !ok || !nerr.Timeout() {
|
|
t.Fatalf("#%d/%d: %v", i, j, err)
|
|
}
|
|
}
|
|
if err == nil {
|
|
time.Sleep(tt.timeout / 3)
|
|
continue
|
|
}
|
|
if n != 0 {
|
|
t.Fatalf("#%d/%d: wrote %d; want 0", i, j, n)
|
|
}
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestReadTimeoutFluctuation(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
switch runtime.GOOS {
|
|
case "plan9":
|
|
t.Skipf("not supported on %s", runtime.GOOS)
|
|
}
|
|
|
|
ln, err := newLocalListener("tcp")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer ln.Close()
|
|
|
|
c, err := Dial(ln.Addr().Network(), ln.Addr().String())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer c.Close()
|
|
|
|
max := time.NewTimer(time.Second)
|
|
defer max.Stop()
|
|
ch := make(chan error)
|
|
go timeoutReceiver(c, 100*time.Millisecond, 50*time.Millisecond, 250*time.Millisecond, ch)
|
|
|
|
select {
|
|
case <-max.C:
|
|
t.Fatal("Read took over 1s; expected 0.1s")
|
|
case err := <-ch:
|
|
if perr := parseReadError(err); perr != nil {
|
|
t.Error(perr)
|
|
}
|
|
if nerr, ok := err.(Error); !ok || !nerr.Timeout() {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestReadFromTimeoutFluctuation(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
switch runtime.GOOS {
|
|
case "plan9":
|
|
t.Skipf("not supported on %s", runtime.GOOS)
|
|
}
|
|
|
|
c1, err := newLocalPacketListener("udp")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer c1.Close()
|
|
|
|
c2, err := Dial(c1.LocalAddr().Network(), c1.LocalAddr().String())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer c2.Close()
|
|
|
|
max := time.NewTimer(time.Second)
|
|
defer max.Stop()
|
|
ch := make(chan error)
|
|
go timeoutPacketReceiver(c2.(PacketConn), 100*time.Millisecond, 50*time.Millisecond, 250*time.Millisecond, ch)
|
|
|
|
select {
|
|
case <-max.C:
|
|
t.Fatal("ReadFrom took over 1s; expected 0.1s")
|
|
case err := <-ch:
|
|
if perr := parseReadError(err); perr != nil {
|
|
t.Error(perr)
|
|
}
|
|
if nerr, ok := err.(Error); !ok || !nerr.Timeout() {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestWriteTimeoutFluctuation(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
switch runtime.GOOS {
|
|
case "plan9":
|
|
t.Skipf("not supported on %s", runtime.GOOS)
|
|
}
|
|
|
|
ln, err := newLocalListener("tcp")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer ln.Close()
|
|
|
|
c, err := Dial(ln.Addr().Network(), ln.Addr().String())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer c.Close()
|
|
|
|
d := time.Second
|
|
if runtime.GOOS == "darwin" && (runtime.GOARCH == "arm" || runtime.GOARCH == "arm64") {
|
|
d = 3 * time.Second // see golang.org/issue/10775
|
|
}
|
|
max := time.NewTimer(d)
|
|
defer max.Stop()
|
|
ch := make(chan error)
|
|
go timeoutTransmitter(c, 100*time.Millisecond, 50*time.Millisecond, 250*time.Millisecond, ch)
|
|
|
|
select {
|
|
case <-max.C:
|
|
t.Fatalf("Write took over %v; expected 0.1s", d)
|
|
case err := <-ch:
|
|
if perr := parseWriteError(err); perr != nil {
|
|
t.Error(perr)
|
|
}
|
|
if nerr, ok := err.(Error); !ok || !nerr.Timeout() {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestVariousDeadlines(t *testing.T) {
|
|
t.Parallel()
|
|
testVariousDeadlines(t)
|
|
}
|
|
|
|
func TestVariousDeadlines1Proc(t *testing.T) {
|
|
// Cannot use t.Parallel - modifies global GOMAXPROCS.
|
|
if testing.Short() {
|
|
t.Skip("skipping in short mode")
|
|
}
|
|
defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(1))
|
|
testVariousDeadlines(t)
|
|
}
|
|
|
|
func TestVariousDeadlines4Proc(t *testing.T) {
|
|
// Cannot use t.Parallel - modifies global GOMAXPROCS.
|
|
if testing.Short() {
|
|
t.Skip("skipping in short mode")
|
|
}
|
|
defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(4))
|
|
testVariousDeadlines(t)
|
|
}
|
|
|
|
type neverEnding byte
|
|
|
|
func (b neverEnding) Read(p []byte) (int, error) {
|
|
for i := range p {
|
|
p[i] = byte(b)
|
|
}
|
|
return len(p), nil
|
|
}
|
|
|
|
func testVariousDeadlines(t *testing.T) {
|
|
switch runtime.GOOS {
|
|
case "plan9":
|
|
t.Skipf("not supported on %s", runtime.GOOS)
|
|
}
|
|
|
|
type result struct {
|
|
n int64
|
|
err error
|
|
d time.Duration
|
|
}
|
|
|
|
ch := make(chan error, 1)
|
|
pasvch := make(chan result)
|
|
handler := func(ls *localServer, ln Listener) {
|
|
for {
|
|
c, err := ln.Accept()
|
|
if err != nil {
|
|
ch <- err
|
|
return
|
|
}
|
|
// The server, with no timeouts of its own,
|
|
// sending bytes to clients as fast as it can.
|
|
go func() {
|
|
t0 := time.Now()
|
|
n, err := io.Copy(c, neverEnding('a'))
|
|
dt := time.Since(t0)
|
|
c.Close()
|
|
pasvch <- result{n, err, dt}
|
|
}()
|
|
}
|
|
}
|
|
ls, err := newLocalServer("tcp")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer ls.teardown()
|
|
if err := ls.buildup(handler); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
for _, timeout := range []time.Duration{
|
|
1 * time.Nanosecond,
|
|
2 * time.Nanosecond,
|
|
5 * time.Nanosecond,
|
|
50 * time.Nanosecond,
|
|
100 * time.Nanosecond,
|
|
200 * time.Nanosecond,
|
|
500 * time.Nanosecond,
|
|
750 * time.Nanosecond,
|
|
1 * time.Microsecond,
|
|
5 * time.Microsecond,
|
|
25 * time.Microsecond,
|
|
250 * time.Microsecond,
|
|
500 * time.Microsecond,
|
|
1 * time.Millisecond,
|
|
5 * time.Millisecond,
|
|
100 * time.Millisecond,
|
|
250 * time.Millisecond,
|
|
500 * time.Millisecond,
|
|
1 * time.Second,
|
|
} {
|
|
numRuns := 3
|
|
if testing.Short() {
|
|
numRuns = 1
|
|
if timeout > 500*time.Microsecond {
|
|
continue
|
|
}
|
|
}
|
|
for run := 0; run < numRuns; run++ {
|
|
name := fmt.Sprintf("%v run %d/%d", timeout, run+1, numRuns)
|
|
t.Log(name)
|
|
|
|
c, err := Dial(ls.Listener.Addr().Network(), ls.Listener.Addr().String())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
tooLong := 5 * time.Second
|
|
max := time.NewTimer(tooLong)
|
|
defer max.Stop()
|
|
actvch := make(chan result)
|
|
go func() {
|
|
t0 := time.Now()
|
|
if err := c.SetDeadline(t0.Add(timeout)); err != nil {
|
|
t.Error(err)
|
|
}
|
|
n, err := io.Copy(ioutil.Discard, c)
|
|
dt := time.Since(t0)
|
|
c.Close()
|
|
actvch <- result{n, err, dt}
|
|
}()
|
|
|
|
select {
|
|
case res := <-actvch:
|
|
if nerr, ok := res.err.(Error); ok && nerr.Timeout() {
|
|
t.Logf("for %v, good client timeout after %v, reading %d bytes", name, res.d, res.n)
|
|
} else {
|
|
t.Fatalf("for %v, client Copy = %d, %v; want timeout", name, res.n, res.err)
|
|
}
|
|
case <-max.C:
|
|
t.Fatalf("for %v, timeout (%v) waiting for client to timeout (%v) reading", name, tooLong, timeout)
|
|
}
|
|
|
|
select {
|
|
case res := <-pasvch:
|
|
t.Logf("for %v, server in %v wrote %d: %v", name, res.d, res.n, res.err)
|
|
case err := <-ch:
|
|
t.Fatalf("for %v, Accept = %v", name, err)
|
|
case <-max.C:
|
|
t.Fatalf("for %v, timeout waiting for server to finish writing", name)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestReadWriteProlongedTimeout tests concurrent deadline
|
|
// modification. Known to cause data races in the past.
|
|
func TestReadWriteProlongedTimeout(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
switch runtime.GOOS {
|
|
case "plan9":
|
|
t.Skipf("not supported on %s", runtime.GOOS)
|
|
}
|
|
|
|
handler := func(ls *localServer, ln Listener) {
|
|
c, err := ln.Accept()
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer c.Close()
|
|
|
|
var wg sync.WaitGroup
|
|
wg.Add(2)
|
|
go func() {
|
|
defer wg.Done()
|
|
var b [1]byte
|
|
for {
|
|
if err := c.SetReadDeadline(time.Now().Add(time.Hour)); err != nil {
|
|
if perr := parseCommonError(err); perr != nil {
|
|
t.Error(perr)
|
|
}
|
|
t.Error(err)
|
|
return
|
|
}
|
|
if _, err := c.Read(b[:]); err != nil {
|
|
if perr := parseReadError(err); perr != nil {
|
|
t.Error(perr)
|
|
}
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
go func() {
|
|
defer wg.Done()
|
|
var b [1]byte
|
|
for {
|
|
if err := c.SetWriteDeadline(time.Now().Add(time.Hour)); err != nil {
|
|
if perr := parseCommonError(err); perr != nil {
|
|
t.Error(perr)
|
|
}
|
|
t.Error(err)
|
|
return
|
|
}
|
|
if _, err := c.Write(b[:]); err != nil {
|
|
if perr := parseWriteError(err); perr != nil {
|
|
t.Error(perr)
|
|
}
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
wg.Wait()
|
|
}
|
|
ls, err := newLocalServer("tcp")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer ls.teardown()
|
|
if err := ls.buildup(handler); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
c, err := Dial(ls.Listener.Addr().Network(), ls.Listener.Addr().String())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer c.Close()
|
|
|
|
var b [1]byte
|
|
for i := 0; i < 1000; i++ {
|
|
c.Write(b[:])
|
|
c.Read(b[:])
|
|
}
|
|
}
|
|
|
|
func TestReadWriteDeadlineRace(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
switch runtime.GOOS {
|
|
case "nacl", "plan9":
|
|
t.Skipf("not supported on %s", runtime.GOOS)
|
|
}
|
|
|
|
N := 1000
|
|
if testing.Short() {
|
|
N = 50
|
|
}
|
|
|
|
ln, err := newLocalListener("tcp")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer ln.Close()
|
|
|
|
c, err := Dial(ln.Addr().Network(), ln.Addr().String())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer c.Close()
|
|
|
|
var wg sync.WaitGroup
|
|
wg.Add(3)
|
|
go func() {
|
|
defer wg.Done()
|
|
tic := time.NewTicker(2 * time.Microsecond)
|
|
defer tic.Stop()
|
|
for i := 0; i < N; i++ {
|
|
if err := c.SetReadDeadline(time.Now().Add(2 * time.Microsecond)); err != nil {
|
|
if perr := parseCommonError(err); perr != nil {
|
|
t.Error(perr)
|
|
}
|
|
break
|
|
}
|
|
if err := c.SetWriteDeadline(time.Now().Add(2 * time.Microsecond)); err != nil {
|
|
if perr := parseCommonError(err); perr != nil {
|
|
t.Error(perr)
|
|
}
|
|
break
|
|
}
|
|
<-tic.C
|
|
}
|
|
}()
|
|
go func() {
|
|
defer wg.Done()
|
|
var b [1]byte
|
|
for i := 0; i < N; i++ {
|
|
c.Read(b[:]) // ignore possible timeout errors
|
|
}
|
|
}()
|
|
go func() {
|
|
defer wg.Done()
|
|
var b [1]byte
|
|
for i := 0; i < N; i++ {
|
|
c.Write(b[:]) // ignore possible timeout errors
|
|
}
|
|
}()
|
|
wg.Wait() // wait for tester goroutine to stop
|
|
}
|