mirror of
https://github.com/go-gitea/gitea
synced 2024-11-16 15:01:07 +01:00
7b4c3c7bb1
There appears to be an intermittent NPE in queue tests relating to the deferred shutdown/terminate functions. This PR more formally asserts that shutdown and termination occurs before starting and finishing the tests but leaves the defer in place to ensure that if there is an issue shutdown/termination will occur. Signed-off-by: Andrew Thornton <art27@cantab.net>
551 lines
12 KiB
Go
551 lines
12 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package queue
|
|
|
|
import (
|
|
"os"
|
|
"sync"
|
|
"testing"
|
|
"time"
|
|
|
|
"code.gitea.io/gitea/modules/log"
|
|
"code.gitea.io/gitea/modules/util"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
func TestPersistableChannelQueue(t *testing.T) {
|
|
handleChan := make(chan *testData)
|
|
handle := func(data ...Data) []Data {
|
|
for _, datum := range data {
|
|
if datum == nil {
|
|
continue
|
|
}
|
|
testDatum := datum.(*testData)
|
|
handleChan <- testDatum
|
|
}
|
|
return nil
|
|
}
|
|
|
|
lock := sync.Mutex{}
|
|
queueShutdown := []func(){}
|
|
queueTerminate := []func(){}
|
|
|
|
tmpDir, err := os.MkdirTemp("", "persistable-channel-queue-test-data")
|
|
assert.NoError(t, err)
|
|
defer util.RemoveAll(tmpDir)
|
|
|
|
queue, err := NewPersistableChannelQueue(handle, PersistableChannelQueueConfiguration{
|
|
DataDir: tmpDir,
|
|
BatchLength: 2,
|
|
QueueLength: 20,
|
|
Workers: 1,
|
|
BoostWorkers: 0,
|
|
MaxWorkers: 10,
|
|
Name: "first",
|
|
}, &testData{})
|
|
assert.NoError(t, err)
|
|
|
|
readyForShutdown := make(chan struct{})
|
|
readyForTerminate := make(chan struct{})
|
|
|
|
go queue.Run(func(shutdown func()) {
|
|
lock.Lock()
|
|
defer lock.Unlock()
|
|
select {
|
|
case <-readyForShutdown:
|
|
default:
|
|
close(readyForShutdown)
|
|
}
|
|
queueShutdown = append(queueShutdown, shutdown)
|
|
}, func(terminate func()) {
|
|
lock.Lock()
|
|
defer lock.Unlock()
|
|
select {
|
|
case <-readyForTerminate:
|
|
default:
|
|
close(readyForTerminate)
|
|
}
|
|
queueTerminate = append(queueTerminate, terminate)
|
|
})
|
|
|
|
test1 := testData{"A", 1}
|
|
test2 := testData{"B", 2}
|
|
|
|
err = queue.Push(&test1)
|
|
assert.NoError(t, err)
|
|
go func() {
|
|
err := queue.Push(&test2)
|
|
assert.NoError(t, err)
|
|
}()
|
|
|
|
result1 := <-handleChan
|
|
assert.Equal(t, test1.TestString, result1.TestString)
|
|
assert.Equal(t, test1.TestInt, result1.TestInt)
|
|
|
|
result2 := <-handleChan
|
|
assert.Equal(t, test2.TestString, result2.TestString)
|
|
assert.Equal(t, test2.TestInt, result2.TestInt)
|
|
|
|
// test1 is a testData not a *testData so will be rejected
|
|
err = queue.Push(test1)
|
|
assert.Error(t, err)
|
|
|
|
<-readyForShutdown
|
|
// Now shutdown the queue
|
|
lock.Lock()
|
|
callbacks := make([]func(), len(queueShutdown))
|
|
copy(callbacks, queueShutdown)
|
|
lock.Unlock()
|
|
for _, callback := range callbacks {
|
|
callback()
|
|
}
|
|
|
|
// Wait til it is closed
|
|
<-queue.(*PersistableChannelQueue).closed
|
|
|
|
err = queue.Push(&test1)
|
|
assert.NoError(t, err)
|
|
err = queue.Push(&test2)
|
|
assert.NoError(t, err)
|
|
select {
|
|
case <-handleChan:
|
|
assert.Fail(t, "Handler processing should have stopped")
|
|
default:
|
|
}
|
|
|
|
// terminate the queue
|
|
<-readyForTerminate
|
|
lock.Lock()
|
|
callbacks = make([]func(), len(queueTerminate))
|
|
copy(callbacks, queueTerminate)
|
|
lock.Unlock()
|
|
for _, callback := range callbacks {
|
|
callback()
|
|
}
|
|
|
|
select {
|
|
case <-handleChan:
|
|
assert.Fail(t, "Handler processing should have stopped")
|
|
default:
|
|
}
|
|
|
|
// Reopen queue
|
|
queue, err = NewPersistableChannelQueue(handle, PersistableChannelQueueConfiguration{
|
|
DataDir: tmpDir,
|
|
BatchLength: 2,
|
|
QueueLength: 20,
|
|
Workers: 1,
|
|
BoostWorkers: 0,
|
|
MaxWorkers: 10,
|
|
Name: "second",
|
|
}, &testData{})
|
|
assert.NoError(t, err)
|
|
|
|
readyForShutdown = make(chan struct{})
|
|
readyForTerminate = make(chan struct{})
|
|
|
|
go queue.Run(func(shutdown func()) {
|
|
lock.Lock()
|
|
defer lock.Unlock()
|
|
select {
|
|
case <-readyForShutdown:
|
|
default:
|
|
close(readyForShutdown)
|
|
}
|
|
queueShutdown = append(queueShutdown, shutdown)
|
|
}, func(terminate func()) {
|
|
lock.Lock()
|
|
defer lock.Unlock()
|
|
select {
|
|
case <-readyForTerminate:
|
|
default:
|
|
close(readyForTerminate)
|
|
}
|
|
queueTerminate = append(queueTerminate, terminate)
|
|
})
|
|
|
|
result3 := <-handleChan
|
|
assert.Equal(t, test1.TestString, result3.TestString)
|
|
assert.Equal(t, test1.TestInt, result3.TestInt)
|
|
|
|
result4 := <-handleChan
|
|
assert.Equal(t, test2.TestString, result4.TestString)
|
|
assert.Equal(t, test2.TestInt, result4.TestInt)
|
|
|
|
<-readyForShutdown
|
|
lock.Lock()
|
|
callbacks = make([]func(), len(queueShutdown))
|
|
copy(callbacks, queueShutdown)
|
|
lock.Unlock()
|
|
for _, callback := range callbacks {
|
|
callback()
|
|
}
|
|
<-readyForTerminate
|
|
lock.Lock()
|
|
callbacks = make([]func(), len(queueTerminate))
|
|
copy(callbacks, queueTerminate)
|
|
lock.Unlock()
|
|
for _, callback := range callbacks {
|
|
callback()
|
|
}
|
|
}
|
|
|
|
func TestPersistableChannelQueue_Pause(t *testing.T) {
|
|
lock := sync.Mutex{}
|
|
var queue Queue
|
|
var err error
|
|
pushBack := false
|
|
|
|
handleChan := make(chan *testData)
|
|
handle := func(data ...Data) []Data {
|
|
lock.Lock()
|
|
if pushBack {
|
|
if pausable, ok := queue.(Pausable); ok {
|
|
log.Info("pausing")
|
|
pausable.Pause()
|
|
}
|
|
lock.Unlock()
|
|
return data
|
|
}
|
|
lock.Unlock()
|
|
|
|
for _, datum := range data {
|
|
testDatum := datum.(*testData)
|
|
handleChan <- testDatum
|
|
}
|
|
return nil
|
|
}
|
|
|
|
queueShutdown := []func(){}
|
|
queueTerminate := []func(){}
|
|
terminated := make(chan struct{})
|
|
|
|
tmpDir, err := os.MkdirTemp("", "persistable-channel-queue-pause-test-data")
|
|
assert.NoError(t, err)
|
|
defer util.RemoveAll(tmpDir)
|
|
|
|
queue, err = NewPersistableChannelQueue(handle, PersistableChannelQueueConfiguration{
|
|
DataDir: tmpDir,
|
|
BatchLength: 2,
|
|
QueueLength: 20,
|
|
Workers: 1,
|
|
BoostWorkers: 0,
|
|
MaxWorkers: 10,
|
|
Name: "first",
|
|
}, &testData{})
|
|
assert.NoError(t, err)
|
|
|
|
go func() {
|
|
queue.Run(func(shutdown func()) {
|
|
lock.Lock()
|
|
defer lock.Unlock()
|
|
queueShutdown = append(queueShutdown, shutdown)
|
|
}, func(terminate func()) {
|
|
lock.Lock()
|
|
defer lock.Unlock()
|
|
queueTerminate = append(queueTerminate, terminate)
|
|
})
|
|
close(terminated)
|
|
}()
|
|
|
|
// Shutdown and Terminate in defer
|
|
defer func() {
|
|
lock.Lock()
|
|
callbacks := make([]func(), len(queueShutdown))
|
|
copy(callbacks, queueShutdown)
|
|
lock.Unlock()
|
|
for _, callback := range callbacks {
|
|
callback()
|
|
}
|
|
lock.Lock()
|
|
log.Info("Finally terminating")
|
|
callbacks = make([]func(), len(queueTerminate))
|
|
copy(callbacks, queueTerminate)
|
|
lock.Unlock()
|
|
for _, callback := range callbacks {
|
|
callback()
|
|
}
|
|
}()
|
|
|
|
test1 := testData{"A", 1}
|
|
test2 := testData{"B", 2}
|
|
|
|
err = queue.Push(&test1)
|
|
assert.NoError(t, err)
|
|
|
|
pausable, ok := queue.(Pausable)
|
|
if !assert.True(t, ok) {
|
|
return
|
|
}
|
|
result1 := <-handleChan
|
|
assert.Equal(t, test1.TestString, result1.TestString)
|
|
assert.Equal(t, test1.TestInt, result1.TestInt)
|
|
|
|
pausable.Pause()
|
|
paused, _ := pausable.IsPausedIsResumed()
|
|
|
|
select {
|
|
case <-paused:
|
|
case <-time.After(100 * time.Millisecond):
|
|
assert.Fail(t, "Queue is not paused")
|
|
return
|
|
}
|
|
|
|
queue.Push(&test2)
|
|
|
|
var result2 *testData
|
|
select {
|
|
case result2 = <-handleChan:
|
|
assert.Fail(t, "handler chan should be empty")
|
|
case <-time.After(100 * time.Millisecond):
|
|
}
|
|
|
|
assert.Nil(t, result2)
|
|
|
|
pausable.Resume()
|
|
_, resumed := pausable.IsPausedIsResumed()
|
|
|
|
select {
|
|
case <-resumed:
|
|
case <-time.After(100 * time.Millisecond):
|
|
assert.Fail(t, "Queue should be resumed")
|
|
return
|
|
}
|
|
|
|
select {
|
|
case result2 = <-handleChan:
|
|
case <-time.After(500 * time.Millisecond):
|
|
assert.Fail(t, "handler chan should contain test2")
|
|
}
|
|
|
|
assert.Equal(t, test2.TestString, result2.TestString)
|
|
assert.Equal(t, test2.TestInt, result2.TestInt)
|
|
|
|
// Set pushBack to so that the next handle will result in a Pause
|
|
lock.Lock()
|
|
pushBack = true
|
|
lock.Unlock()
|
|
|
|
// Ensure that we're still resumed
|
|
_, resumed = pausable.IsPausedIsResumed()
|
|
|
|
select {
|
|
case <-resumed:
|
|
case <-time.After(100 * time.Millisecond):
|
|
assert.Fail(t, "Queue is not resumed")
|
|
return
|
|
}
|
|
|
|
// push test1
|
|
queue.Push(&test1)
|
|
|
|
// Now as this is handled it should pause
|
|
paused, _ = pausable.IsPausedIsResumed()
|
|
|
|
select {
|
|
case <-paused:
|
|
case <-handleChan:
|
|
assert.Fail(t, "handler chan should not contain test1")
|
|
return
|
|
case <-time.After(500 * time.Millisecond):
|
|
assert.Fail(t, "queue should be paused")
|
|
return
|
|
}
|
|
|
|
lock.Lock()
|
|
pushBack = false
|
|
lock.Unlock()
|
|
|
|
pausable.Resume()
|
|
|
|
_, resumed = pausable.IsPausedIsResumed()
|
|
select {
|
|
case <-resumed:
|
|
case <-time.After(500 * time.Millisecond):
|
|
assert.Fail(t, "Queue should be resumed")
|
|
return
|
|
}
|
|
|
|
select {
|
|
case result1 = <-handleChan:
|
|
case <-time.After(500 * time.Millisecond):
|
|
assert.Fail(t, "handler chan should contain test1")
|
|
return
|
|
}
|
|
assert.Equal(t, test1.TestString, result1.TestString)
|
|
assert.Equal(t, test1.TestInt, result1.TestInt)
|
|
|
|
lock.Lock()
|
|
callbacks := make([]func(), len(queueShutdown))
|
|
copy(callbacks, queueShutdown)
|
|
queueShutdown = queueShutdown[:0]
|
|
lock.Unlock()
|
|
// Now shutdown the queue
|
|
for _, callback := range callbacks {
|
|
callback()
|
|
}
|
|
|
|
// Wait til it is closed
|
|
select {
|
|
case <-queue.(*PersistableChannelQueue).closed:
|
|
case <-time.After(5 * time.Second):
|
|
assert.Fail(t, "queue should close")
|
|
return
|
|
}
|
|
|
|
err = queue.Push(&test1)
|
|
assert.NoError(t, err)
|
|
err = queue.Push(&test2)
|
|
assert.NoError(t, err)
|
|
select {
|
|
case <-handleChan:
|
|
assert.Fail(t, "Handler processing should have stopped")
|
|
return
|
|
default:
|
|
}
|
|
|
|
// terminate the queue
|
|
lock.Lock()
|
|
callbacks = make([]func(), len(queueTerminate))
|
|
copy(callbacks, queueTerminate)
|
|
queueShutdown = queueTerminate[:0]
|
|
lock.Unlock()
|
|
for _, callback := range callbacks {
|
|
callback()
|
|
}
|
|
|
|
select {
|
|
case <-handleChan:
|
|
assert.Fail(t, "Handler processing should have stopped")
|
|
return
|
|
case <-terminated:
|
|
case <-time.After(10 * time.Second):
|
|
assert.Fail(t, "Queue should have terminated")
|
|
return
|
|
}
|
|
|
|
lock.Lock()
|
|
pushBack = true
|
|
lock.Unlock()
|
|
|
|
// Reopen queue
|
|
terminated = make(chan struct{})
|
|
queue, err = NewPersistableChannelQueue(handle, PersistableChannelQueueConfiguration{
|
|
DataDir: tmpDir,
|
|
BatchLength: 1,
|
|
QueueLength: 20,
|
|
Workers: 1,
|
|
BoostWorkers: 0,
|
|
MaxWorkers: 10,
|
|
Name: "second",
|
|
}, &testData{})
|
|
assert.NoError(t, err)
|
|
pausable, ok = queue.(Pausable)
|
|
if !assert.True(t, ok) {
|
|
return
|
|
}
|
|
|
|
paused, _ = pausable.IsPausedIsResumed()
|
|
|
|
go func() {
|
|
queue.Run(func(shutdown func()) {
|
|
lock.Lock()
|
|
defer lock.Unlock()
|
|
queueShutdown = append(queueShutdown, shutdown)
|
|
}, func(terminate func()) {
|
|
lock.Lock()
|
|
defer lock.Unlock()
|
|
queueTerminate = append(queueTerminate, terminate)
|
|
})
|
|
close(terminated)
|
|
}()
|
|
|
|
select {
|
|
case <-handleChan:
|
|
assert.Fail(t, "Handler processing should have stopped")
|
|
return
|
|
case <-paused:
|
|
}
|
|
|
|
paused, _ = pausable.IsPausedIsResumed()
|
|
|
|
select {
|
|
case <-paused:
|
|
case <-time.After(500 * time.Millisecond):
|
|
assert.Fail(t, "Queue is not paused")
|
|
return
|
|
}
|
|
|
|
select {
|
|
case <-handleChan:
|
|
assert.Fail(t, "Handler processing should have stopped")
|
|
return
|
|
default:
|
|
}
|
|
|
|
lock.Lock()
|
|
pushBack = false
|
|
lock.Unlock()
|
|
|
|
pausable.Resume()
|
|
_, resumed = pausable.IsPausedIsResumed()
|
|
select {
|
|
case <-resumed:
|
|
case <-time.After(500 * time.Millisecond):
|
|
assert.Fail(t, "Queue should be resumed")
|
|
return
|
|
}
|
|
|
|
var result3, result4 *testData
|
|
|
|
select {
|
|
case result3 = <-handleChan:
|
|
case <-time.After(1 * time.Second):
|
|
assert.Fail(t, "Handler processing should have resumed")
|
|
return
|
|
}
|
|
select {
|
|
case result4 = <-handleChan:
|
|
case <-time.After(1 * time.Second):
|
|
assert.Fail(t, "Handler processing should have resumed")
|
|
return
|
|
}
|
|
if result4.TestString == test1.TestString {
|
|
result3, result4 = result4, result3
|
|
}
|
|
assert.Equal(t, test1.TestString, result3.TestString)
|
|
assert.Equal(t, test1.TestInt, result3.TestInt)
|
|
|
|
assert.Equal(t, test2.TestString, result4.TestString)
|
|
assert.Equal(t, test2.TestInt, result4.TestInt)
|
|
|
|
lock.Lock()
|
|
callbacks = make([]func(), len(queueShutdown))
|
|
copy(callbacks, queueShutdown)
|
|
queueShutdown = queueShutdown[:0]
|
|
lock.Unlock()
|
|
// Now shutdown the queue
|
|
for _, callback := range callbacks {
|
|
callback()
|
|
}
|
|
|
|
// terminate the queue
|
|
lock.Lock()
|
|
callbacks = make([]func(), len(queueTerminate))
|
|
copy(callbacks, queueTerminate)
|
|
queueShutdown = queueTerminate[:0]
|
|
lock.Unlock()
|
|
for _, callback := range callbacks {
|
|
callback()
|
|
}
|
|
|
|
select {
|
|
case <-time.After(10 * time.Second):
|
|
assert.Fail(t, "Queue should have terminated")
|
|
return
|
|
case <-terminated:
|
|
}
|
|
}
|