gwillcox-r7
37 lines
753 B
C++
37 lines
753 B
C++
#pragma once
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#include <Windows.h>
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#include <string>
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class FileOpLock
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{
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public:
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typedef void(*UserCallback)();
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static FileOpLock* CreateLock(const std::wstring& name, const std::wstring& share_mode, FileOpLock::UserCallback cb);
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void WaitForLock(UINT Timeout);
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~FileOpLock();
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private:
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HANDLE g_hFile;
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OVERLAPPED g_o;
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REQUEST_OPLOCK_INPUT_BUFFER g_inputBuffer;
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REQUEST_OPLOCK_OUTPUT_BUFFER g_outputBuffer;
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HANDLE g_hLockCompleted;
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PTP_WAIT g_wait;
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UserCallback _cb;
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FileOpLock(UserCallback cb);
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static void CALLBACK WaitCallback(PTP_CALLBACK_INSTANCE Instance,
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PVOID Parameter, PTP_WAIT Wait,
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TP_WAIT_RESULT WaitResult);
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void DoWaitCallback();
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bool BeginLock(const std::wstring& name, DWORD dwShareMode, bool exclusive);
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};
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