1 files changed, 0 insertions, 329 deletions
diff --git a/pkg/tcpip/timer_test.go b/pkg/tcpip/timer_test.go
deleted file mode 100644
index e6783b126..000000000
--- a/pkg/tcpip/timer_test.go
+++ /dev/null
@@ -1,329 +0,0 @@
-// Copyright 2020 The gVisor Authors.
-//
-// 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 tcpip_test
-
-import (
-	"math"
-	"sync"
-	"testing"
-	"time"
-
-	"gvisor.dev/gvisor/pkg/tcpip"
-)
-
-func TestMonotonicTimeBefore(t *testing.T) {
-	var mt tcpip.MonotonicTime
-	if mt.Before(mt) {
-		t.Errorf("%#v.Before(%#v)", mt, mt)
-	}
-
-	one := mt.Add(1)
-	if one.Before(mt) {
-		t.Errorf("%#v.Before(%#v)", one, mt)
-	}
-	if !mt.Before(one) {
-		t.Errorf("!%#v.Before(%#v)", mt, one)
-	}
-}
-
-func TestMonotonicTimeAddSub(t *testing.T) {
-	var mt tcpip.MonotonicTime
-	if one, two := mt.Add(2), mt.Add(1).Add(1); one != two {
-		t.Errorf("mt.Add(2) != mt.Add(1).Add(1) (%#v != %#v)", one, two)
-	}
-
-	min := mt.Add(math.MinInt64)
-	max := mt.Add(math.MaxInt64)
-
-	if overflow := mt.Add(1).Add(math.MaxInt64); overflow != max {
-		t.Errorf("mt.Add(math.MaxInt64) != mt.Add(1).Add(math.MaxInt64) (%#v != %#v)", max, overflow)
-	}
-	if underflow := mt.Add(-1).Add(math.MinInt64); underflow != min {
-		t.Errorf("mt.Add(math.MinInt64) != mt.Add(-1).Add(math.MinInt64) (%#v != %#v)", min, underflow)
-	}
-
-	if got, want := min.Sub(min), time.Duration(0); want != got {
-		t.Errorf("got min.Sub(min) = %d, want %d", got, want)
-	}
-	if got, want := max.Sub(max), time.Duration(0); want != got {
-		t.Errorf("got max.Sub(max) = %d, want %d", got, want)
-	}
-
-	if overflow, want := max.Sub(min), time.Duration(math.MaxInt64); overflow != want {
-		t.Errorf("mt.Add(math.MaxInt64).Sub(mt.Add(math.MinInt64) != %s (%#v)", want, overflow)
-	}
-	if underflow, want := min.Sub(max), time.Duration(math.MinInt64); underflow != want {
-		t.Errorf("mt.Add(math.MinInt64).Sub(mt.Add(math.MaxInt64) != %s (%#v)", want, underflow)
-	}
-}
-
-func TestMonotonicTimeSub(t *testing.T) {
-	var mt tcpip.MonotonicTime
-
-	if one, two := mt.Add(2), mt.Add(1).Add(1); one != two {
-		t.Errorf("mt.Add(2) != mt.Add(1).Add(1) (%#v != %#v)", one, two)
-	}
-
-	if max, overflow := mt.Add(math.MaxInt64), mt.Add(1).Add(math.MaxInt64); max != overflow {
-		t.Errorf("mt.Add(math.MaxInt64) != mt.Add(1).Add(math.MaxInt64) (%#v != %#v)", max, overflow)
-	}
-	if max, underflow := mt.Add(math.MinInt64), mt.Add(-1).Add(math.MinInt64); max != underflow {
-		t.Errorf("mt.Add(math.MinInt64) != mt.Add(-1).Add(math.MinInt64) (%#v != %#v)", max, underflow)
-	}
-}
-
-const (
-	shortDuration  = 1 * time.Nanosecond
-	middleDuration = 100 * time.Millisecond
-)
-
-func TestJobReschedule(t *testing.T) {
-	clock := tcpip.NewStdClock()
-	var wg sync.WaitGroup
-	var lock sync.Mutex
-
-	for i := 0; i < 2; i++ {
-		wg.Add(1)
-
-		go func() {
-			lock.Lock()
-			// Assigning a new timer value updates the timer's locker and function.
-			// This test makes sure there is no data race when reassigning a timer
-			// that has an active timer (even if it has been stopped as a stopped
-			// timer may be blocked on a lock before it can check if it has been
-			// stopped while another goroutine holds the same lock).
-			job := tcpip.NewJob(clock, &lock, func() {
-				wg.Done()
-			})
-			job.Schedule(shortDuration)
-			lock.Unlock()
-		}()
-	}
-	wg.Wait()
-}
-
-func TestJobExecution(t *testing.T) {
-	t.Parallel()
-
-	clock := tcpip.NewStdClock()
-	var lock sync.Mutex
-	ch := make(chan struct{})
-
-	job := tcpip.NewJob(clock, &lock, func() {
-		ch <- struct{}{}
-	})
-	job.Schedule(shortDuration)
-
-	// Wait for timer to fire.
-	select {
-	case <-ch:
-	case <-time.After(middleDuration):
-		t.Fatal("timed out waiting for timer to fire")
-	}
-
-	// The timer should have fired only once.
-	select {
-	case <-ch:
-		t.Fatal("no other timers should have fired")
-	case <-time.After(middleDuration):
-	}
-}
-
-func TestCancellableTimerResetFromLongDuration(t *testing.T) {
-	t.Parallel()
-
-	clock := tcpip.NewStdClock()
-	var lock sync.Mutex
-	ch := make(chan struct{})
-
-	job := tcpip.NewJob(clock, &lock, func() { ch <- struct{}{} })
-	job.Schedule(middleDuration)
-
-	lock.Lock()
-	job.Cancel()
-	lock.Unlock()
-
-	job.Schedule(shortDuration)
-
-	// Wait for timer to fire.
-	select {
-	case <-ch:
-	case <-time.After(middleDuration):
-		t.Fatal("timed out waiting for timer to fire")
-	}
-
-	// The timer should have fired only once.
-	select {
-	case <-ch:
-		t.Fatal("no other timers should have fired")
-	case <-time.After(middleDuration):
-	}
-}
-
-func TestJobRescheduleFromShortDuration(t *testing.T) {
-	t.Parallel()
-
-	clock := tcpip.NewStdClock()
-	var lock sync.Mutex
-	ch := make(chan struct{})
-
-	lock.Lock()
-	job := tcpip.NewJob(clock, &lock, func() { ch <- struct{}{} })
-	job.Schedule(shortDuration)
-	job.Cancel()
-	lock.Unlock()
-
-	// Wait for timer to fire if it wasn't correctly stopped.
-	select {
-	case <-ch:
-		t.Fatal("timer fired after being stopped")
-	case <-time.After(middleDuration):
-	}
-
-	job.Schedule(shortDuration)
-
-	// Wait for timer to fire.
-	select {
-	case <-ch:
-	case <-time.After(middleDuration):
-		t.Fatal("timed out waiting for timer to fire")
-	}
-
-	// The timer should have fired only once.
-	select {
-	case <-ch:
-		t.Fatal("no other timers should have fired")
-	case <-time.After(middleDuration):
-	}
-}
-
-func TestJobImmediatelyCancel(t *testing.T) {
-	t.Parallel()
-
-	clock := tcpip.NewStdClock()
-	var lock sync.Mutex
-	ch := make(chan struct{})
-
-	for i := 0; i < 1000; i++ {
-		lock.Lock()
-		job := tcpip.NewJob(clock, &lock, func() { ch <- struct{}{} })
-		job.Schedule(shortDuration)
-		job.Cancel()
-		lock.Unlock()
-	}
-
-	// Wait for timer to fire if it wasn't correctly stopped.
-	select {
-	case <-ch:
-		t.Fatal("timer fired after being stopped")
-	case <-time.After(middleDuration):
-	}
-}
-
-func TestJobCancelledRescheduleWithoutLock(t *testing.T) {
-	t.Parallel()
-
-	clock := tcpip.NewStdClock()
-	var lock sync.Mutex
-	ch := make(chan struct{})
-
-	lock.Lock()
-	job := tcpip.NewJob(clock, &lock, func() { ch <- struct{}{} })
-	job.Schedule(shortDuration)
-	job.Cancel()
-	lock.Unlock()
-
-	for i := 0; i < 10; i++ {
-		job.Schedule(middleDuration)
-
-		lock.Lock()
-		// Sleep until the timer fires and gets blocked trying to take the lock.
-		time.Sleep(middleDuration * 2)
-		job.Cancel()
-		lock.Unlock()
-	}
-
-	// Wait for double the duration so timers that weren't correctly stopped can
-	// fire.
-	select {
-	case <-ch:
-		t.Fatal("timer fired after being stopped")
-	case <-time.After(middleDuration * 2):
-	}
-}
-
-func TestManyCancellableTimerResetAfterBlockedOnLock(t *testing.T) {
-	t.Parallel()
-
-	clock := tcpip.NewStdClock()
-	var lock sync.Mutex
-	ch := make(chan struct{})
-
-	lock.Lock()
-	job := tcpip.NewJob(clock, &lock, func() { ch <- struct{}{} })
-	job.Schedule(shortDuration)
-	for i := 0; i < 10; i++ {
-		// Sleep until the timer fires and gets blocked trying to take the lock.
-		time.Sleep(middleDuration)
-		job.Cancel()
-		job.Schedule(shortDuration)
-	}
-	lock.Unlock()
-
-	// Wait for double the duration for the last timer to fire.
-	select {
-	case <-ch:
-	case <-time.After(middleDuration):
-		t.Fatal("timed out waiting for timer to fire")
-	}
-
-	// The timer should have fired only once.
-	select {
-	case <-ch:
-		t.Fatal("no other timers should have fired")
-	case <-time.After(middleDuration):
-	}
-}
-
-func TestManyJobReschedulesUnderLock(t *testing.T) {
-	t.Parallel()
-
-	clock := tcpip.NewStdClock()
-	var lock sync.Mutex
-	ch := make(chan struct{})
-
-	lock.Lock()
-	job := tcpip.NewJob(clock, &lock, func() { ch <- struct{}{} })
-	job.Schedule(shortDuration)
-	for i := 0; i < 10; i++ {
-		job.Cancel()
-		job.Schedule(shortDuration)
-	}
-	lock.Unlock()
-
-	// Wait for double the duration for the last timer to fire.
-	select {
-	case <-ch:
-	case <-time.After(middleDuration):
-		t.Fatal("timed out waiting for timer to fire")
-	}
-
-	// The timer should have fired only once.
-	select {
-	case <-ch:
-		t.Fatal("no other timers should have fired")
-	case <-time.After(middleDuration):
-	}
-}