61 lines
2 KiB
C
61 lines
2 KiB
C
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//=============================================================================
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// Define the classes and functions used to manage threaded WMI refreshes.
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//=============================================================================
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#pragma once
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#include "category.h"
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class CRefreshThread
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{
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friend DWORD WINAPI ThreadRefresh(void * pArg);
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public:
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CRefreshThread(HWND hwnd);
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~CRefreshThread();
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void StartRefresh(CMSInfoLiveCategory * pCategory, BOOL fRecursive = FALSE, BOOL fForceRefresh = FALSE);
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void CancelRefresh();
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void KillRefresh();
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BOOL IsRefreshing();
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BOOL WaitForRefresh();
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void EnterCriticalSection() { ::EnterCriticalSection(&m_criticalsection); };
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void LeaveCriticalSection() { ::LeaveCriticalSection(&m_criticalsection); };
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BOOL GetForceRefresh() { return m_fForceRefresh; };
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HRESULT CheckWMIConnection();
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void GetRefreshStatus(LONG * pCount, CString * pstrCurrent)
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{
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::EnterCriticalSection(&m_csCategoryRefreshing);
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*pCount = m_nCategoriesRefreshed;
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*pstrCurrent = m_strCategoryRefreshing;
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::LeaveCriticalSection(&m_csCategoryRefreshing);
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};
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public:
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CMSInfoLiveCategory * m_pcategory; // category to refresh
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CString m_strMachine; // machine from which to gather data
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protected:
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volatile BOOL m_fCancel; // cancel the current refresh, stay in thread
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volatile BOOL m_fQuit; // exit the thread
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volatile BOOL m_fRecursive; // refresh categories recursively
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volatile BOOL m_fForceRefresh; // if TRUE, refigure all the cached data
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volatile LONG m_nCategoriesRefreshed; // number of categories refreshed
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CString m_strCategoryRefreshing; // category currently being refreshed
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CRITICAL_SECTION m_csCategoryRefreshing; // critical section to guard the string
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HANDLE m_eventDone; // refresh thread fires when done
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HANDLE m_eventStart; // main thread fires when more data
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CRITICAL_SECTION m_criticalsection;
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HRESULT m_hresult;
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HRESULT m_hrWMI;
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HWND m_hwnd;
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HANDLE m_hThread;
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DWORD m_dwThreadID;
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};
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