CWinThread 部分代码

1CWinThread* AFXAPI AfxGetThread()
2{
3	// check for current thread in module thread state
4	AFX_MODULE_THREAD_STATE* pState = AfxGetModuleThreadState();
5	CWinThread* pThread = pState->m_pCurrentWinThread;
6	return pThread;
7}
8
9AFX_MODULE_THREAD_STATE* AFXAPI AfxGetModuleThreadState()
10{
11	AFX_MODULE_THREAD_STATE* pResult=AfxGetModuleState()->m_thread.GetData();
12	ENSURE(pResult != NULL);
13	return pResult;
14}
15
16AFX_MODULE_STATE* AFXAPI AfxGetModuleState()
17{
18	_AFX_THREAD_STATE* pState = _afxThreadState;
19	ENSURE(pState);
20	AFX_MODULE_STATE* pResult;
21	if (pState->m_pModuleState != NULL)
22	{
23		// thread state's module state serves as override
24		pResult = pState->m_pModuleState;
25	}
26	else
27	{
28		// otherwise, use global app state
29		pResult = _afxBaseModuleState.GetData();
30	}
31	ENSURE(pResult != NULL);
32	return pResult;
33}
34
35AFX_INLINE TYPE* GetData()
36	{
37		TYPE* pData = (TYPE*)CProcessLocalObject::GetData(&CreateObject);
38		ENSURE(pData != NULL);
39		return pData;
40	}
41
42CNoTrackObject* CProcessLocalObject::GetData(CNoTrackObject* (AFXAPI* pfnCreateObject)())
43{
44	if (m_pObject == NULL)
45	{
46		AfxLockGlobals(CRIT_PROCESSLOCAL);
47		TRY
48		{
49			if (m_pObject == NULL)
50				m_pObject = (*pfnCreateObject)();
51		}
52		CATCH_ALL(e)
53		{
54			AfxUnlockGlobals(CRIT_PROCESSLOCAL);
55			THROW_LAST();
56		}
57		END_CATCH_ALL
58		AfxUnlockGlobals(CRIT_PROCESSLOCAL);
59	}
60	return m_pObject;
61}