67 lines
2.4 KiB
C
67 lines
2.4 KiB
C
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//=============================================================================
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// File: thread.h
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// Author: a-jammar
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//
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// Copyright (c) 1998-1999 Microsoft Corporation
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//
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// This header file defines the class used to perform threaded refreshes in
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// MSInfo (added late in the game). All refreshes should use this class.
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//=============================================================================
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#pragma once
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class CFolder;
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class CSystemInfo;
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class CDataGatherer;
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//-----------------------------------------------------------------------------
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// This structure is used to communicate with the thread function. A pointer is
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// passed when the thread function is called. We declare a static instance of
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// the struct which will be reused.
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//-----------------------------------------------------------------------------
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class CThreadingRefresh;
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struct SThreadInfo
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{
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volatile BOOL m_fShowData;
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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 folders recursively
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volatile BOOL m_fSoftRefresh; // if TRUE, don't force a refresh on existing data
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CFolder * m_pFolder; // the folder to refresh
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CSystemInfo * m_pSysInfo; // CSystemInfo to update when complete
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CDataGatherer * m_pGatherer; // use this to refresh the data
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CThreadingRefresh * m_pThreadRefresh;
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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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};
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//static SThreadInfo threadinfo;
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class CThreadingRefresh
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{
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public:
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CThreadingRefresh(CDataGatherer * pGatherer);
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~CThreadingRefresh();
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BOOL IsRefreshing();
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int PerchentageComplete();
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void RefreshAll(CFolder * pFolder, volatile BOOL * pfCancel = NULL);
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void RefreshFolder(CFolder * pFolder, BOOL fRecursive = FALSE, BOOL fSoftRefresh = FALSE);
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void RefreshFolderAsync(CFolder * pFolder, CSystemInfo * pSysInfo, BOOL fRecursive = FALSE, BOOL fSoftRefresh = FALSE);
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void CancelRefresh(BOOL fUpdateUI = TRUE);
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void KillRefreshThread();
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BOOL WaitForRefresh();
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BOOL ResultsPaneNotAvailable();
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void EnterCriticalSection() { ::EnterCriticalSection(&m_csThreadRefresh); };
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void LeaveCriticalSection() { ::LeaveCriticalSection(&m_csThreadRefresh); };
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private:
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CDataGatherer * m_pGatherer;
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HANDLE m_hThread;
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DWORD m_dwThreadID;
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SThreadInfo * m_pThreadInfo;
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CRITICAL_SECTION m_csThreadRefresh;
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};
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