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gitea/routers/web/admin/queue_tester.go
wxiaoguang 18f26cfbf7
Improve queue and logger context (#24924)
Before there was a "graceful function": RunWithShutdownFns, it's mainly
for some modules which doesn't support context.

The old queue system doesn't work well with context, so the old queues
need it.

After the queue refactoring, the new queue works with context well, so,
use Golang context as much as possible, the `RunWithShutdownFns` could
be removed (replaced by RunWithCancel for context cancel mechanism), the
related code could be simplified.

This PR also fixes some legacy queue-init problems, eg:

* typo : archiver: "unable to create codes indexer queue" => "unable to
create repo-archive queue"
* no nil check for failed queues, which causes unfriendly panic

After this PR, many goroutines could have better display name:

![image](https://github.com/go-gitea/gitea/assets/2114189/701b2a9b-8065-4137-aeaa-0bda2b34604a)

![image](https://github.com/go-gitea/gitea/assets/2114189/f1d5f50f-0534-40f0-b0be-f2c9daa5fe92)
2023-05-26 07:31:55 +00:00

78 lines
1.9 KiB
Go

// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package admin
import (
"runtime/pprof"
"sync"
"time"
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/queue"
"code.gitea.io/gitea/modules/setting"
)
var testQueueOnce sync.Once
// initTestQueueOnce initializes the test queue for dev mode
// the test queue will also be shown in the queue list
// developers could see the queue length / worker number / items number on the admin page and try to remove the items
func initTestQueueOnce() {
testQueueOnce.Do(func() {
ctx, _, finished := process.GetManager().AddTypedContext(graceful.GetManager().ShutdownContext(), "TestQueue", process.SystemProcessType, false)
qs := setting.QueueSettings{
Name: "test-queue",
Type: "channel",
Length: 20,
BatchLength: 2,
MaxWorkers: 3,
}
testQueue, err := queue.NewWorkerPoolQueueWithContext(ctx, "test-queue", qs, func(t ...int64) (unhandled []int64) {
for range t {
select {
case <-graceful.GetManager().ShutdownContext().Done():
case <-time.After(5 * time.Second):
}
}
return nil
}, true)
if err != nil {
log.Error("unable to create test queue: %v", err)
return
}
queue.GetManager().AddManagedQueue(testQueue)
testQueue.SetWorkerMaxNumber(5)
go graceful.GetManager().RunWithCancel(testQueue)
go func() {
pprof.SetGoroutineLabels(ctx)
defer finished()
cnt := int64(0)
adding := true
for {
select {
case <-ctx.Done():
case <-time.After(500 * time.Millisecond):
if adding {
if testQueue.GetQueueItemNumber() == qs.Length {
adding = false
}
} else {
if testQueue.GetQueueItemNumber() == 0 {
adding = true
}
}
if adding {
_ = testQueue.Push(cnt)
cnt++
}
}
}
}()
})
}