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Improve queue and logger context (#24924)

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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](701b2a9b-8065-4137-aeaa-0bda2b34604a)

![image](f1d5f50f-0534-40f0-b0be-f2c9daa5fe92)
This commit is contained in:
wxiaoguang 2023-05-26 15:31:55 +08:00 • committed by GitHub
parent e4922d484b
commit 18f26cfbf7
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31 changed files with 204 additions and 263 deletions
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19
modules/log/init.go
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@ -4,14 +4,19 @@
package log
import (
"context"
"runtime"
"strings"
"sync/atomic"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/util/rotatingfilewriter"
)
var projectPackagePrefix string
var (
projectPackagePrefix string
processTraceDisabled atomic.Int64
)
func init() {
_, filename, _, _ := runtime.Caller(0)
@ -24,6 +29,10 @@ func init() {
rotatingfilewriter.ErrorPrintf = FallbackErrorf
process.Trace = func(start bool, pid process.IDType, description string, parentPID process.IDType, typ string) {
// the logger manager has its own mutex lock, so it's safe to use "Load" here
if processTraceDisabled.Load() != 0 {
return
}
if start && parentPID != "" {
Log(1, TRACE, "Start %s: %s (from %s) (%s)", NewColoredValue(pid, FgHiYellow), description, NewColoredValue(parentPID, FgYellow), NewColoredValue(typ, Reset))
} else if start {
@ -33,3 +42,11 @@ func init() {
}
}
}
func newContext(parent context.Context, desc string) (ctx context.Context, cancel context.CancelFunc) {
// the "process manager" also calls "log.Trace()" to output logs, so if we want to create new contexts by the manager, we need to disable the trace temporarily
processTraceDisabled.Add(1)
defer processTraceDisabled.Add(-1)
ctx, _, cancel = process.GetManager().AddTypedContext(parent, desc, process.SystemProcessType, false)
return ctx, cancel
}