关于进程外 COM 服务器的生命周期

2014-12-10 03:56:34 608 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

COM与ActiveX组件技术解析：从进程内DLL到进程外EXE的设计抉择组件化开发是软件工程中的核心概念，它通过定义清晰的接口契约，实现模块间的松耦合与二进制复用。其原理基于接口与实现分离，通过全局唯一标识符（GUID）确保组件识别的唯一性，并利用引用计数机制管理对象生命周期。这一技术价值在于实现了跨语言、跨进程的互操作能力，极大提升了代码复用率和系统集成效率。其应用场景广泛，从桌面应用的插件系统到遗留的企业级业务软件，都依赖于稳健的组件模型。本文聚焦于COM（组件对象模型）及其在桌面端的实现——ActiveX，深入探讨其两种关键形态：ActiveX DLL与ActiveX E 阅读详情

问题是这样的：我要写一个音视频的控制器，被网页控制。
由于控制器比较复杂，在浏览器中生存不太靠谱。
所以我用 ATL 写了一个EXE 的 COM.
主模块继承于 ATL::CAtlExeModuleT

然后构建了一个对象

lass ATL_NO_VTABLE CSipPhoneControl :
public CComObjectRootEx<CComSingleThreadModel>,
public CComCoClass<CSipPhoneControl, &CLSID_SipPhoneControl>,
public IConnectionPointContainerImpl<CSipPhoneControl>,
public CProxy_ISipPhoneControlEvents<CSipPhoneControl>,
public IDispatchImpl<ISipPhoneControl, &IID_ISipPhoneControl, &LIBID_VISSipPhoneLib, /*wMajor =*/ 1, /*wMinor =*/ 0>,
同时指定宏 DECLARE_CLASSFACTORY_SINGLETON 做单实例。

在 WEB 中嵌入一个 activex 作为客户端调用这个对象，目前控制非常好，方法调用和接收事件都可以。

我的问题是：当客户端都关闭后我的这个 EXE 的com 实例也就销毁了，exe也就消失了，我有没有什么办法保持这个COM 实例不销毁，需要在这个EXE com中做哪些操作。

另外处于某些控制需求，可能需要我在这个EXECOM 中控制关闭这个com 实例，我目前只能先 FIRE 一个事件通知所有的客户端，然后客户端都将连接点断开，并release，若某个客户端不release这个com 我就只能干等着，有没有办法，在EXE中硬性都release掉，优雅的关闭这个COM 呢。

...全文

通过 CoovaChilli 和 FreeRADIUS 搭建一个公共 Wi-Fi 的认证系统，实现用户连接到 Wi-Fi 后通过 Captive Portal（强制登录页面）进行认证要实现固定设备连接的功能，你可以通过MAC 地址认证来限制哪些设备可以通过 FreeRADIUS 进行身份验证和连接。你可以在 FreeRADIUS 的users文件中直接配置允许的设备的 MAC 地址，也可以通过数据库存储和查询设备信息，进一步提高管理效率。通过这些方法，你可以灵活地控制哪些设备能够访问你的 Wi-Fi 网络。阅读详情

hbs_biscuit

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I_ask_who 2015-02-19

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override Release 或者在CoLockObjectExternal里面做文章

许文君 2015-01-05

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CoRevokeClassObject

赵4老师 2014-12-24

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引用 5 楼 fly4free 的回复:

[quote=引用 2 楼 zhao4zhong1 的回复:] COM Tutorial Samples Tutorial Home ...

可以给个地址吗？搜不到啊[/quote] 搜索下载安装MSDN98到D:\MSDN98 mk:@MSITStore:D:\MSDN98\98VS\2052\COM.chm::/comsamp/using.htm

fly4free 2014-12-24

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引用 2 楼 zhao4zhong1 的回复:

COM Tutorial Samples Tutorial Home ...

可以给个地址吗？搜不到啊

hbs_biscuit 2014-12-22

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木有人回答？

hbs_biscuit 2014-12-11

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用 GetLockCount 吗？

赵4老师 2014-12-10

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COM Tutorial Samples Tutorial Home Using Samples First Lesson List of Lessons Click a lesson link below to jump to the tutorial narrative for the associated code sample. Directory/Sample Lesson Topic APPUTIL Lesson 0 Win32 Basics: Win32 Application Utility Library READTUT Lesson 1 Win32 Basics: Tutorial Reader and Linking to APPUTIL EXESKEL Lesson 2 Win32 Basics: Win32 EXE Skeleton Application DLLSKEL Lesson 3 Win32 Basics: Win32 DLL Skeleton DLLUSER Lesson 4 Win32 Basics: EXE User of a DLL COMOBJ Lesson 5 COM Objects: Containment and Aggregation in a DLL COMUSER Lesson 6 COM Objects: Nested Aggregation in an EXE User REGISTER Lesson 7 COM Components: Component Object Registration DLLSERVE Lesson 8 COM Components: Component Object DLL Server DLLCLIEN Lesson 9 COM Components: Client Application of DLL Server LICSERVE Lesson 10 COM Components: DLL Licensed Server LICCLIEN Lesson 11 COM Components: Client Application of Licensed Server MARSHAL Lesson 12 COM Components: Custom Interface Standard Marshaling MARSHAL2 Lesson 13 COM Components: Marshaling DLL Self-Registration LOCSERVE Lesson 14 COM Components: Local Server LOCCLIEN Lesson 15 COM Components: Client Application of Local Server APTSERVE Lesson 16 COM Components: Local Server with Multiple Apartments APTCLIEN Lesson 17 COM Components: Client of Multiple Apartment Server REMCLIEN Lesson 18 COM Components: Distributed COM (DCOM) Remote Client FRESERVE Lesson 19 COM Components: Free-threaded Server FRECLIEN Lesson 20 COM Components: Client of Free-threaded Server CONSERVE Lesson 21 COM Components: Connectable Object Server CONCLIEN Lesson 22 COM Components: Client of Connectable Object Server STOSERVE Lesson 23 COM Components: Structured Storage Server STOCLIEN Lesson 24 COM Components: Client of Structured Storage Server PERSERVE Lesson 25 COM Components: IPersistStream Persistent Object Server PERTEXT Lesson 26 COM Components: IPersistStreamInit Persistent Object Server PERDRAW Lesson 27 COM Components: IPersistStorage Persistent Object Server PERCLIEN Lesson 28 COM Components: Client of Persistent Object Servers DCDMARSH Lesson 29 COM Components: Standard Marshaling for DCOM DCDSERVE Lesson 30 COM Components: DCOM Server Using Security DCOMDRAW Lesson 31 COM Components: DCOM Client Using Security INC -- Common include directory used by the code samples LIB -- Common library directory used by the code samples TUTSAMP -- Main branch directory with TUTORIAL.EXE, MAKEALL.BAT, etc. Throughout the sample sequence a clear differentiation is maintained between client and server, with a separate lesson sample for each. Usually, each client/server pair covers an area of COM technology. Here is an overview of the technologies covered by the lessons. Basic Win32 application programming is covered in the APPUTIL, READTUT, EXESKEL, DLLSKEL, and DLLUSER lessons. APPUTIL provides a utility framework for building Win32 applications. It also contains some tools needed for tutorial purposes. READTUT is a very simple EXE application that shows how to link to the APPUTIL static library and call utility functions in it. READTUT also shows how to invoke the COM tutorial Web page reader that is used throughout the sample series. EXESKEL shows a basic Win32 skeleton EXE application built using APPUTIL. DLLSKEL and DLLUSER simularly show a basic Win32 DLL (Dynamic Link Library) skeleton and how to access it from an EXE user application. Basic COM object construction, custom interfaces, and techniques for coding their reuse using aggregation and containment are covered in COMOBJ and COMUSER. The implementation and use of the standard IUnknown interface is covered. The implementation and use of the custom ICar, IUtility, and ICruise interfaces is covered. Basic COM component construction, class factories, component object registration, and techniques for housing COM objects in COM component servers are covered in REGISTER, DLLSERVE, and DLLCLIEN. The implementation and use of the standard IClassFactory interface is covered. COM component Licensing is covered in LICSERVE and LICCLIEN. The implementation and use of the standard IClassFactory2 interface is covered. Out-of-Process local servers and the standard marshaling of custom interfaces are covered in MARSHAL, LOCSERVE, and LOCCLIEN. Explicit self-registration in the standard marshaling DLL is covered in MARSHAL2. The use of the MIDL language to specify custom interfaces is covered. The use of the MIDL compiler to produce proxy/stub marshaling servers is also covered. Apartment model server and client construction are covered in APTSERVE and APTCLIEN. Construction of multiple single-threaded apartments (STAs) in the same process is covered. DCOM (Distributed COM) with custom interfaces operating between client and server across machine boundaries is covered in REMCLIEN. Specifying the remote machine name in the COSERVERINFO structure is covered. Detailed DCOM security issues are not covered. Free-threaded COM components and their access by free-threaded clients are covered in FRESERVE and FRECLIEN. The use of several client worker threads in the multi-threaded apartment (MTA) is covered. The implementation and use of a custom IBall interface is covered. Connectable COM object technology is covered in CONSERVE and CONCLIEN. Event source and sink construction is covered. Implementation and use of the IConnectionPointContainer, IConnectionPoint, IEnumConnectionPoints, and IEnumConnections standard interfaces are covered. The implementation and use of the custom IBall and IBallSink interfaces is covered. Structured storage using COM's compound file technology is covered in STOSERVE and STOCLIEN. A COM-based scribble drawing application is used. Use of the IStorage and IStream standard interfaces is covered. The implementation and use of the custom IPaper and IPaperSink interfaces is covered. Persistent COM objects are covered in PERSERVE, PERTEXT, PERDRAW, and PERCLIEN. IPersistStream is covered in the PERSERVE components. IPersistStreamInit is covered in the PERTEXT components. IPersistStorage is covered in the PERDRAW components. The PERCLIEN client functions these various persistent objects and manages storage for all of them in various substorages and streams within one structured storage compound file. The implementation and use of the custom IPageList, ITextPage, IDrawPage, IPageListSink, ITextPageSink, and IDrawPageSink interfaces is covered. DCOM (Distributed COM) Security is covered in DCDMARSH, DCDSERVE, and DCOMDRAW. The use of CoInitializeSecurity is shown in the DCDSERVE and DCOMDRAW samples. Multiple clients accessing a shared single COM object across machine boundaries is shown in a simple network shared-drawing application. Process and activation security within NT network domains is discussed. Registry AppIDs and their LaunchPermission, AccessPermission, and RunAs named values are discussed. The use of the DCOMCNFG utility is covered. Back to page top © 1995-1998 Microsoft Corporation

oyljerry 2014-12-10

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生成COM server。然后开辟run的循环。

关于 进程外 COM 服务器的 生命周期

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