internal static Collection <Process> GetProcessForFileLockCore(KernelTransaction transaction, Collection <string> filePaths, PathFormat pathFormat)
{
if (!NativeMethods.IsAtLeastWindowsVista)
{
throw new PlatformNotSupportedException(new Win32Exception((int)Win32Errors.ERROR_OLD_WIN_VERSION).Message);
}
if (null == filePaths)
{
throw new ArgumentNullException("filePaths");
}
if (filePaths.Count == 0)
{
throw new ArgumentOutOfRangeException("filePaths", "No paths specified.");
}
var isLongPath = pathFormat == PathFormat.LongFullPath;
var allPaths = isLongPath ? new Collection <string>(filePaths) : new Collection <string>();
if (!isLongPath)
{
foreach (var path in filePaths)
{
allPaths.Add(Path.GetExtendedLengthPathCore(transaction, path, pathFormat, GetFullPathOptions.RemoveTrailingDirectorySeparator | GetFullPathOptions.FullCheck));
}
}
uint sessionHandle;
var success = NativeMethods.RmStartSession(out sessionHandle, 0, Guid.NewGuid().ToString()) == Win32Errors.ERROR_SUCCESS;
var lastError = Marshal.GetLastWin32Error();
if (!success)
{
NativeError.ThrowException(lastError);
}
var processes = new Collection <Process>();
try
{
// A snapshot count of all running processes.
var processesFound = (uint)Process.GetProcesses().Length;
uint lpdwRebootReasons = 0;
success = NativeMethods.RmRegisterResources(sessionHandle, (uint)allPaths.Count, allPaths.ToArray(), 0, null, 0, null) == Win32Errors.ERROR_SUCCESS;
lastError = Marshal.GetLastWin32Error();
if (!success)
{
NativeError.ThrowException(lastError);
}
GetList:
var processInfo = new NativeMethods.RM_PROCESS_INFO[processesFound];
var processesTotal = processesFound;
lastError = NativeMethods.RmGetList(sessionHandle, out processesFound, ref processesTotal, processInfo, ref lpdwRebootReasons);
// There would be no need for this because we already have a/the total number of running processes.
if (lastError == Win32Errors.ERROR_MORE_DATA)
{
goto GetList;
}
if (lastError != Win32Errors.ERROR_SUCCESS)
{
NativeError.ThrowException(lastError);
}
for (var i = 0; i < processesTotal; i++)
{
try
{
processes.Add(Process.GetProcessById(processInfo[i].Process.dwProcessId));
}
// MSDN: The process specified by the processId parameter is not running. The identifier might be expired.
catch (ArgumentException) {}
}
}
finally
{
NativeMethods.RmEndSession(sessionHandle);
}
return(processes.Count == 0 ? null : processes);
}
private NativeMethods.RM_PROCESS_INFO[] ListAppsInternal(out uint arrayLength, out NativeMethods.RM_REBOOT_REASON rebootReasons)
{
int ret;
uint arrayLengthNeeded = 1;
NativeMethods.RM_PROCESS_INFO[] processInfo;
do
{
arrayLength = arrayLengthNeeded;
processInfo = new NativeMethods.RM_PROCESS_INFO[arrayLength];
ret = NativeMethods.RmGetList(_sessionHandle, out arrayLengthNeeded, ref arrayLength, processInfo, out rebootReasons);
} while (ret == WindowsUtils.Win32ErrorMoreData);
if (ret != 0) throw BuildException(ret);
return processInfo;
}
