CWinThread* AFXAPI AfxGetThread()
{
// check for current thread in module thread state
AFX_MODULE_THREAD_STATE* pState = AfxGetModuleThreadState();
CWinThread* pThread = pState->m_pCurrentWinThread;
return pThread;
}
AFX_MODULE_THREAD_STATE* AFXAPI AfxGetModuleThreadState()
{
AFX_MODULE_THREAD_STATE* pResult=AfxGetModuleState()->m_thread.GetData();
ENSURE(pResult != NULL);
return pResult;
}
AFX_MODULE_STATE* AFXAPI AfxGetModuleState()
{
_AFX_THREAD_STATE* pState = _afxThreadState;
ENSURE(pState);
AFX_MODULE_STATE* pResult;
if (pState->m_pModuleState != NULL)
{
// thread state's module state serves as override
pResult = pState->m_pModuleState;
}
else
{
// otherwise, use global app state
pResult = _afxBaseModuleState.GetData();
}
ENSURE(pResult != NULL);
return pResult;
}
AFX_INLINE TYPE* GetData()
{
TYPE* pData = (TYPE*)CProcessLocalObject::GetData(&CreateObject);
ENSURE(pData != NULL);
return pData;
}
CNoTrackObject* CProcessLocalObject::GetData(CNoTrackObject* (AFXAPI* pfnCreateObject)())
{
if (m_pObject == NULL)
{
AfxLockGlobals(CRIT_PROCESSLOCAL);
TRY
{
if (m_pObject == NULL)
m_pObject = (*pfnCreateObject)();
}
CATCH_ALL(e)
{
AfxUnlockGlobals(CRIT_PROCESSLOCAL);
THROW_LAST();
}
END_CATCH_ALL
AfxUnlockGlobals(CRIT_PROCESSLOCAL);
}
return m_pObject;
}
CWinThread 部分代码
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