c00*_*0fd 6 c++ windows winapi event-viewer
我很好奇.我正在开发Windows服务并将所有诊断事件记录到Windows事件日志中.因此,当服务运行时,我打开事件查看器(来自管理工具)以查看我的服务操作的结果.
除了我需要卸载程序的时候(这也是出于测试目的),这非常有用.出于某种奇怪的原因,事件查看器会锁定我的服务的.exe映像文件,因此卸载程序无法删除它错误代码ERROR_SHARING_VIOLATION:
The process cannot access the file because it is being used by another process.
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这只发生在Vista和更高版本的操作系统上,似乎不是XP的问题.
知道如何让事件查看器释放文件锁吗?(我问的是程序化的方法.我显然可以手动关闭它,但那不是我想要的.)
Vista中引入了一个名为Restart Manager的鲜为人知的功能,它可以帮助您通过用户模式代码释放文件锁.由于您将其标记为C++,基于本文,这里有一个小代码示例:
#include <RestartManager.h>
#pragma comment(lib ,"Rstrtmgr.lib")
BOOL ReleaseFileLock(LPCTSTR pFilePath)
{
BOOL bResult = FALSE;
DWORD dwSession;
WCHAR szSessionKey[CCH_RM_SESSION_KEY+1] = { 0 };
DWORD dwError = RmStartSession(&dwSession, 0, szSessionKey);
if (dwError == ERROR_SUCCESS)
{
dwError = RmRegisterResources(dwSession, 1, &pFilePath,
0, NULL, 0, NULL);
if (dwError == ERROR_SUCCESS)
{
UINT nProcInfoNeeded = 0;
UINT nProcInfo = 0;
RM_PROCESS_INFO rgpi[1];
DWORD dwReason;
dwError = RmGetList(dwSession, &nProcInfoNeeded,
&nProcInfo, rgpi, &dwReason);
if (dwError == ERROR_SUCCESS ||
dwError == ERROR_MORE_DATA)
{
if(nProcInfoNeeded > 0)
{
//If current process does not have enough privileges to close one of
//the "offending" processes, you'll get ERROR_FAIL_NOACTION_REBOOT
dwError = RmShutdown(dwSession, RmForceShutdown, NULL);
if (dwError == ERROR_SUCCESS)
{
bResult = TRUE;
}
}
else
bResult = TRUE;
}
}
}
RmEndSession(dwSession);
SetLastError(dwError);
return bResult;
}
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