mirror of
https://github.com/SagerNet/sing-box.git
synced 2026-05-13 13:57:05 +00:00
120 lines
2.9 KiB
Go
120 lines
2.9 KiB
Go
package oomkiller
|
|
|
|
import (
|
|
"context"
|
|
"sync/atomic"
|
|
"time"
|
|
|
|
"github.com/sagernet/sing-box/adapter"
|
|
boxService "github.com/sagernet/sing-box/adapter/service"
|
|
boxConstant "github.com/sagernet/sing-box/constant"
|
|
"github.com/sagernet/sing-box/log"
|
|
"github.com/sagernet/sing-box/option"
|
|
"github.com/sagernet/sing/service"
|
|
)
|
|
|
|
type OOMReporter interface {
|
|
WriteReport(memoryUsage uint64) error
|
|
WriteDraft(memoryUsage uint64) error
|
|
DiscardDraft() error
|
|
}
|
|
|
|
func RegisterService(registry *boxService.Registry) {
|
|
boxService.Register[option.OOMKillerServiceOptions](registry, boxConstant.TypeOOMKiller, NewService)
|
|
}
|
|
|
|
type Service struct {
|
|
boxService.Adapter
|
|
ctx context.Context
|
|
logger log.ContextLogger
|
|
network adapter.NetworkManager
|
|
timerConfig timerConfig
|
|
adaptiveTimer *adaptiveTimer
|
|
lastReportTime atomic.Int64
|
|
draftCancelled atomic.Bool
|
|
}
|
|
|
|
func NewService(ctx context.Context, logger log.ContextLogger, tag string, options option.OOMKillerServiceOptions) (adapter.Service, error) {
|
|
memoryLimit, mode := resolvePolicyMode(ctx, options)
|
|
config, err := buildTimerConfig(options, memoryLimit, mode, options.KillerDisabled)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &Service{
|
|
Adapter: boxService.NewAdapter(boxConstant.TypeOOMKiller, tag),
|
|
ctx: ctx,
|
|
logger: logger,
|
|
network: service.FromContext[adapter.NetworkManager](ctx),
|
|
timerConfig: config,
|
|
}, nil
|
|
}
|
|
|
|
func (s *Service) createTimer() {
|
|
s.adaptiveTimer = newAdaptiveTimer(s.logger, s.network, s.timerConfig, s.writeOOMReport)
|
|
}
|
|
|
|
func (s *Service) startTimer() {
|
|
s.createTimer()
|
|
s.adaptiveTimer.start()
|
|
}
|
|
|
|
func (s *Service) stopTimer() {
|
|
if s.adaptiveTimer != nil {
|
|
s.adaptiveTimer.stop()
|
|
}
|
|
}
|
|
|
|
func (s *Service) writeOOMReport(memoryUsage uint64) {
|
|
now := time.Now().Unix()
|
|
lastReport := s.lastReportTime.Load()
|
|
if now-lastReport < 3600 {
|
|
return
|
|
}
|
|
if !s.lastReportTime.CompareAndSwap(lastReport, now) {
|
|
return
|
|
}
|
|
reporter := service.FromContext[OOMReporter](s.ctx)
|
|
if reporter == nil {
|
|
return
|
|
}
|
|
err := reporter.WriteReport(memoryUsage)
|
|
if err != nil {
|
|
s.logger.Warn("failed to write OOM report: ", err)
|
|
} else {
|
|
s.logger.Info("OOM report saved")
|
|
}
|
|
}
|
|
|
|
func (s *Service) writeOOMDraft(memoryUsage uint64) {
|
|
if s.draftCancelled.Load() {
|
|
return
|
|
}
|
|
reporter := service.FromContext[OOMReporter](s.ctx)
|
|
if reporter == nil {
|
|
return
|
|
}
|
|
err := reporter.WriteDraft(memoryUsage)
|
|
if s.draftCancelled.Load() {
|
|
reporter.DiscardDraft()
|
|
return
|
|
}
|
|
if err != nil {
|
|
s.logger.Warn("failed to write OOM draft: ", err)
|
|
} else {
|
|
s.logger.Warn("OOM draft saved")
|
|
}
|
|
}
|
|
|
|
func (s *Service) discardOOMDraft() {
|
|
s.draftCancelled.Store(true)
|
|
reporter := service.FromContext[OOMReporter](s.ctx)
|
|
if reporter == nil {
|
|
return
|
|
}
|
|
err := reporter.DiscardDraft()
|
|
if err != nil {
|
|
s.logger.Warn("failed to discard OOM draft: ", err)
|
|
} else {
|
|
s.logger.Info("OOM draft discarded")
|
|
}
|
|
}
|