platform: Improve iOS OOM killer

daemon/instance.go

@@ -7,10 +7,12 @@ import (
 	"github.com/sagernet/sing-box"
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/urltest"
+	C "github.com/sagernet/sing-box/constant"
 	"github.com/sagernet/sing-box/experimental/deprecated"
 	"github.com/sagernet/sing-box/include"
 	"github.com/sagernet/sing-box/log"
 	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing/common"
 	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/json"
 	"github.com/sagernet/sing/service"
@@ -21,6 +23,7 @@ type Instance struct {
 	ctx                   context.Context
 	cancel                context.CancelFunc
 	instance              *box.Box
+	connectionManager     adapter.ConnectionManager
 	clashServer           adapter.ClashServer
 	cacheFile             adapter.CacheFile
 	pauseManager          pause.Manager
@@ -84,6 +87,15 @@ func (s *StartedService) newInstance(profileContent string, overrideOptions *Ove
 			}
 		}
 	}
+	if s.oomKiller && C.IsIos {
+		if !common.Any(options.Services, func(it option.Service) bool {
+			return it.Type == C.TypeOOMKiller
+		}) {
+			options.Services = append(options.Services, option.Service{
+				Type: C.TypeOOMKiller,
+			})
+		}
+	}
 	urlTestHistoryStorage := urltest.NewHistoryStorage()
 	ctx = service.ContextWithPtr(ctx, urlTestHistoryStorage)
 	i := &Instance{
@@ -101,6 +113,7 @@ func (s *StartedService) newInstance(profileContent string, overrideOptions *Ove
 		return nil, err
 	}
 	i.instance = boxInstance
+	i.connectionManager = service.FromContext[adapter.ConnectionManager](ctx)
 	i.clashServer = service.FromContext[adapter.ClashServer](ctx)
 	i.pauseManager = service.FromContext[pause.Manager](ctx)
 	i.cacheFile = service.FromContext[adapter.CacheFile](ctx)