UC故事 2011/11/20 - 2

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原创最新推荐文章于 2026-09-08 16:34:28 发布 331 阅读 AI 写同款· GEO 优化 ›

多租户Saas架构设计分析（基础篇）本篇先给大家介绍一下相关的概念和常见问题。实践篇链接：https://blog.youkuaiyun.com/haponchang/article/details/104246317 SaaS简介 SaaS是Software-as-a-Service（软件即服务）的简称，“软件即服务”？是不是有点拗口？其实你就理解成为“按需租用别人提供的软件服务”就可以了，它是一种软件交付模式。... 阅读详情

1. server信息如何传递到client应用层？

void CConference::OnReceiveData(CRtMessageBlock& data)
{
CRtAutoPtr<CInfoSvrPduBase> decPdu;
RtResult ret = CInfoSvrPduBase::DecodePdu(data, decPdu.ParaOut());
....
CInfoSvrPduBase* pdu = decPdu.Get();
....

switch(pdu->GetType())
{
......

//Conference message
case INFO_SVR_PDU_TYPE_CONF_JOIN_RSPN: // 所以，要到CConference才会对Data的业务含义进行解析
HandleJoinConfRspn((CInfoSvrJoinConfRspnPdu*) pdu);
break;

...

}

STACK TRACE:

CConference::OnReceiveData(CRtMessageBlock & {...}) line 1365
CConfConnection::OnReceiveData(CRtMessageBlock & {...}, IConnection * 0x0205de84) line 170
CRtIMConnection::OnReceive(CRtMessageBlock & {...}, IRtTransport * 0x0205b590, CRtTransportParameter * 0x00000000) line 890 + 50 bytes
CRtEventOnReceive::OnEventFire() line 375 + 50 bytes
CRtEventQueueBase::ProcessOneEvent(IRtEvent * 0x0205b278) line 229 + 12 bytes
CRtEventQueueBase::ProcessEvents(const std::list<IRtEvent *,std::allocator<IRtEvent *> > & {...}) line 217
CRtReactorBase::ProcessHandleEvent(void * 0xffffffff, long 256, int 0, int 1, int 0) line 324 + 18 bytes
CRtReactorWin32Message::Win32SocketWndProc(HWND__ * 0x00130946, unsigned int 1058, unsigned int 4294967295, long 256) line 115
USER32! 77d18734()
USER32! 77d18816()
USER32! 77d189cd()
USER32! 77d196c7()
WTL::CMessageLoop::Run() line 468 + 15 bytes
Run(char * 0x00151f28, int 1) line 207 + 11 bytes
LaunchConf(HINSTANCE__ * 0x00400000, char * 0x00151f28, int 1) line 318 + 13 bytes
WinMain(HINSTANCE__ * 0x00400000, HINSTANCE__ * 0x00000000, char * 0x00151f28, int 1) line 85 + 20 bytes
WinMainCRTStartup() line 330 + 54 bytes
KERNEL32! 7c817077()

Q：Win32SockWndProc也是一种消息处理？由消息映射来映射的？

A：exactly!

class CRtReactorWin32Message : public CRtReactorBase
{
public:
CRtReactorWin32Message();
virtual ~CRtReactorWin32Message();

......

protected:
virtual RtResult OnHandleRegister(RT_HANDLE aFd,
IRtEventHandler::MASK aMask, IRtEventHandler *aEh);
virtual void OnHandleRemoved(RT_HANDLE aFd);

static LRESULT CALLBACK Win32SocketWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);

Q: when to be called by whom ???
A:当任何程序通过PostMessage()发送几个消息（比如与socket有关的）的时候，此函数被调用。如，在Reactor::NotifyHandler()中。2011/12/04

HWND m_hwndNotify;
UINT m_dwTimerId;

};

总结一下：

* 发送：消息->消息处理函数->通过Session代码发送出去

* 接收：特殊消息->消息处理函数->通过Session代码接收进来

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