Service流程

Android 7.0版本

Service生命周期

标记service状态

bumpServiceExecutingLocked(ServiceRecord r, boolean fg, String why)\---bumpServiceExecutingLocked(r, execInFg, "create")@realStartServiceLocked\---bumpServiceExecutingLocked(r, execInFg, "start")@sendServiceArgsLocked(ServiceRecord r, boolean execInFg, boolean oomAdjusted)\---bumpServiceExecutingLocked(r, execInFg, "bind");@requestServiceBindingLocked(ServiceRecord r, IntentBindRecord i, boolean execInFg, boolean rebind)\---bumpServiceExecutingLocked(r, false, "bring down unbind")@bringDownServiceLocked(ServiceRecord r)\---bumpServiceExecutingLocked(s, false, "unbind")@removeConnectionLocked(ConnectionRecord c, ProcessRecord skipApp, ActivityRecord skipAct)\---bumpServiceExecutingLocked(r, false, "destroy")@bringDownServiceLocked(ServiceRecord r)

startService流程

startService(Intent service)@ContextImpl.java\---startServiceCommon(Intent service, UserHandle user)@ContextImpl.java    \---startService(IApplicationThread caller, Intent service,            String resolvedType, String callingPackage, int userId)@[e-mail]        \---START_SERVICE_TRANSACTION@OnTransact@ActivityManagerNative            \---startService(IApplicationThread caller, Intent service,                String resolvedType, String callingPackage, int userId)@ActivityManagerService.java                \---startServiceLocked(IApplicationThread caller, Intent service, String resolvedType,                    int callingPid, int callingUid, String callingPackage, final int userId)@ActiveServices.java                    \---startServiceInnerLocked(ServiceMap smap, Intent service, ServiceRecord r,                        boolean callerFg, boolean addToStarting)@ActiveServices.java                        \---bringUpServiceLocked(ServiceRecord r, int intentFlags, boolean execInFg,                            boolean whileRestarting, boolean permissionsReviewRequired)@ActiveServices.java                            \---realStartServiceLocked(ServiceRecord r, ProcessRecord app, boolean execInFg))@ActiveServices.java                                \---scheduleCreateService(IBinder token, ServiceInfo info,                                    CompatibilityInfo compatInfo, int processState)@[e-mail]                                    \---SCHEDULE_CREATE_SERVICE_TRANSACTION@[e-mail]                                        \---scheduleCreateService(IBinder token,                                            ServiceInfo info, CompatibilityInfo compatInfo, int processState)@ActivityThread.java                                            \---CREATE_SERVICE@handleMessage@[e-mail]                                                \---handleCreateService(CreateServiceData data)@ActivityThread.java                                                    \---service.onCreate()                                                    \---serviceDoneExecuting(IBinder token, int type, int startId, int res)@[e-mail]                                                        \---SERVICE_DONE_EXECUTING_TRANSACTION@[e-mail]                                                            \---serviceDoneExecuting(IBinder token, int type, int startId, int res)@ActivityManagerService.java                                                                \---serviceDoneExecutingLocked(ServiceRecord r, int type, int startId, int res)@ActiveServices.java                                                                    \---serviceDoneExecutingLocked(ServiceRecord r, boolean inDestroying,            boolean finishing)@ActiveServices.java

启动onStartCommand流程
onStartCommand

sendServiceArgsLocked(ServiceRecord r, boolean execInFg, boolean oomAdjusted)@ActiveServices.java\---scheduleServiceArgs(IBinder token, boolean taskRemoved, int startId, int flags, Intent args)@[e-mail]    \---SCHEDULE_SERVICE_ARGS_TRANSACTION@[e-mail]        \---scheduleServiceArgs(IBinder token, boolean taskRemoved, int startId, int flags ,Intent args)@[e-mail]            \---SERVICE_ARGS@handleMessage@[e-mail]                \---handleServiceArgs(ServiceArgsData data)@ActivityThread.java                    \---service.onStartCommand                    \---serviceDoneExecuting(IBinder token, int type, int startId, int res)@[e-mail]                        \---SERVICE_DONE_EXECUTING_TRANSACTION@[e-mail]                            \---serviceDoneExecuting(IBinder token, int type, int startId, int res)@ActivityManagerService.java                                \---serviceDoneExecutingLocked(ServiceRecord r, int type, int startId, int res)@ActiveServices.java                                    \---serviceDoneExecutingLocked(ServiceRecord r, boolean inDestroying,            boolean finishing)@ActiveServices.java

stopService流程

stopService(Intent service)@ContextImpl.java\---stopServiceCommon(Intent service, UserHandle user)@ContextImpl.java    \---stopService(IApplicationThread caller, Intent service,            String resolvedType, int userId)@[e-mail]            \---STOP_SERVICE_TRANSACTION@[e-mail]                \---stopService(IApplicationThread caller, Intent service, String resolvedType, int userId)@ActivityManagerService.java                    \---stopServiceLocked(IApplicationThread caller, Intent service, String resolvedType, int userId)@ActiveServices.java                        \---stopServiceLocked(ServiceRecord service)@ActiveServices.java                            \---bringDownServiceIfNeededLocked(ServiceRecord r, boolean knowConn, boolean hasConn)@ActiveServices.java                                \---bringDownServiceLocked(ServiceRecord r)@ActiveServices.java                                    \---scheduleStopService(IBinder token)@[e-mail]                                        \---SCHEDULE_STOP_SERVICE_TRANSACTION@[e-mail]                                            \---scheduleStopService(IBinder token)@[e-mail]                                                \---STOP_SERVICE@handleMessage@[e-mail]                                                    \---handleStopService(IBinder token)@ActivityThread.java                                                        \---service.onDestroy()                                                        \---scheduleFinalCleanup(String who, String what)@ContextImpl.java                                                            \---scheduleContextCleanup(ContextImpl context, String who, String what)@ActivityThread.java                                                                \---CLEAN_UP_CONTEXT@handleMessage@[e-mail]                                                                    \---performFinalCleanup(String who, String what)@ComtextImpl.java                                                                        \---unregisterReceiver(IIntentReceiver receiver)---后面分析                                                                        \---unbindService(IServiceConnection connection)@[e-mail]                                                                            \---UNBIND_SERVICE_TRANSACTION@[e-mail]                                                                                \---unbindService(IServiceConnection connection)@ActivityManagerService.java                                                                                    \---unbindServiceLocked(IServiceConnection connection)@ActiveServices.java                                                                                        \---removeConnectionLocked(        ConnectionRecord c, ProcessRecord skipApp, ActivityRecord skipAct)@ActiveServices.java        \---scheduleUnbindService(IBinder token, Intent intent)[e-mail]            \---SCHEDULE_UNBIND_SERVICE_TRANSACTION@[e-mail]                \---scheduleUnbindService(IBinder token, Intent intent)@[e-mail]                    \---UNBIND_SERVICE@handleMessage@[e-mail]                        \---handleUnbindService(BindServiceData data)@ActivityThread.java                            \---service.onUnbind()                            \---unbindFinished(IBinder token, Intent intent, boolean doRebind)@[e-mail]==doRebind==true                                \---UNBIND_FINISHED_TRANSACTION@[e-mail]                                    \---unbindFinished(IBinder token, Intent intent, boolean doRebind)@ActivityManagerService.java                                        \---unbindFinishedLocked(ServiceRecord r, Intent intent, boolean doRebind)@ActiveServices.java                                            \---requestServiceBindingLocked(ServiceRecord r, IntentBindRecord i, boolean execInFg, boolean rebind)@ActiveServices.java                                                \---重绑定服务，分析停止                            \---serviceDoneExecuting(IBinder token, int type, int startId, int res)@[e-mail]==doRebind==false                                \---SERVICE_DONE_EXECUTING_TRANSACTION@[e-mail]                                    \---serviceDoneExecuting(IBinder token, int type, int startId, int res)@ActivityManagerService.java                                        \---serviceDoneExecutingLocked(ServiceRecord r, int type, int startId, int res)@ActiveServices.java                                            \---serviceDoneExecutingLocked(ServiceRecord r, boolean inDestroying,             boolean finishing)@ActiveServices.java

bindService流程

bindService(Intent service, ServiceConnection conn, int flags)@ContextImp.java\---bindServiceCommon(Intent service, ServiceConnection conn, int flags, Handler handler, UserHandle user)@ContextImp.java    \---bindService(IApplicationThread caller, IBinder token,            Intent service, String resolvedType, IServiceConnection connection,            int flags,  String callingPackage, int userId)@[e-mail]        \---BIND_SERVICE_TRANSACTION@[e-mail]            \---bindService(IApplicationThread caller, IBinder token, Intent service,                String resolvedType, IServiceConnection connection, int flags, String callingPackage,                int userId)@ActivityManagerService.java                \---bindServiceLocked(IApplicationThread caller, IBinder token, Intent service,                    String resolvedType, final IServiceConnection connection, int flags,                    String callingPackage, final int userId)@ActiveServices.java                    创建ConnectionRecord，准备建立连接                    \---requestServiceBindingLocked(ServiceRecord r, IntentBindRecord i, boolean execInFg, boolean rebind)@ActiveServices.java                        \---scheduleBindService(IBinder token, Intent intent, boolean rebind, int processState)@[e-mail]                            \---SCHEDULE_BIND_SERVICE_TRANSACTION@[e-mail]                                \---scheduleBindService(IBinder token, Intent intent, boolean rebind, int processState)@[e-mail]                                    \---BIND_SERVICE@handleMessage@[e-mail]                                        \---handleBindService(BindServiceData data)@ActivityThread.java                                            \---service.onBind()----非rebind                                            \---publishService(IBinder token, Intent intent, IBinder service)@[e-mail]                                                \---PUBLISH_SERVICE_TRANSACTION@[e-mail]                                                    \---publishService(IBinder token, Intent intent, IBinder service)@ActivityManagerService.java                                                        \---publishServiceLocked(ServiceRecord r, Intent intent, IBinder service)@ActivieServices.java                                                            \---serviceDoneExecuting(IBinder token, int type, int startId, int res)@[e-mail]                                                                \---SERVICE_DONE_EXECUTING_TRANSACTION@[e-mail]                                                                    \---serviceDoneExecuting(IBinder token, int type, int startId, int res)@ActivityManagerService.java                                                                        \---serviceDoneExecutingLocked(ServiceRecord r, int type, int startId, int res)@ActiveServices.java                                                                            \---serviceDoneExecutingLocked(ServiceRecord r, boolean inDestroying,             boolean finishing)@ActiveServices.java

unbindService流程

unbindService(ServiceConnection conn)@ContextImpl.java\---unbindService(IServiceConnection connection)@[e-mail]    ---UNBIND_SERVICE_TRANSACTION@[e-mail]         \---unbindService(IServiceConnection connection)@ActivityManagerService.java            \---unbindServiceLocked(IServiceConnection connection)@ActiveServices.java                \---removeConnectionLocked(ConnectionRecord c, ProcessRecord skipApp, ActivityRecord skipAct)@ActiveServices.java                    \---scheduleUnbindService(IBinder token, Intent intent)[e-mail]                        \---SCHEDULE_UNBIND_SERVICE_TRANSACTION@[e-mail]                            \---scheduleUnbindService(IBinder token, Intent intent)@[e-mail]                                \---UNBIND_SERVICE@handleMessage@[e-mail]                                    \---handleUnbindService(BindServiceData data)@ActivityThread.java                                        \---service.onUnbind()                                            \---unbindFinished(IBinder token, Intent intent, boolean doRebind)@[e-mail]==doRebind==true                                                \---UNBIND_FINISHED_TRANSACTION@[e-mail]                                                    \---unbindFinished(IBinder token, Intent intent, boolean doRebind)@ActivityManagerService.java                                                        \---unbindFinishedLocked(ServiceRecord r, Intent intent, boolean doRebind)@ActiveServices.java                                                            \---requestServiceBindingLocked(ServiceRecord r, IntentBindRecord i, boolean execInFg, boolean rebind)@ActiveServices.java                                                            \---重绑定服务，分析结束                                                    \---serviceDoneExecuting(IBinder token, int type, int startId, int res)@[e-mail]==doRebind==false                                                        \---SERVICE_DONE_EXECUTING_TRANSACTION@[e-mail]                                                            \---serviceDoneExecuting(IBinder token, int type, int startId, int res)@ActivityManagerService.java                                                                \---serviceDoneExecutingLocked(ServiceRecord r, int type, int startId, int res)@ActiveServices.java                                                                    \---serviceDoneExecutingLocked(ServiceRecord r, boolean inDestroying,             boolean finishing)@ActiveServices.java