/// <summary>
/// Determines the type based on the attributes of the path
/// </summary>
/// <param name="fullPath">Full path</param>
/// <returns><see cref="QuickIOFileSystemEntryType"/></returns>
internal static QuickIOFileSystemEntryType DetermineFileSystemEntry(string fullPath)
{
Contract.Requires(!String.IsNullOrWhiteSpace(fullPath));
Win32FindData findData = InternalQuickIO.GetFindDataFromPath(fullPath);
return(!InternalHelpers.ContainsFileAttribute(findData.dwFileAttributes, FileAttributes.Directory) ? QuickIOFileSystemEntryType.File : QuickIOFileSystemEntryType.Directory);
}
public static Win32FindData GetFindDataFromPath(string fullpath, QuickIOFileSystemEntryType?estimatedFileSystemEntryType = null)
{
Contract.Requires(fullpath != null);
//Changed to allow paths which do not exist:
//Contract.Ensures( Contract.Result<Win32FindData>() != null );
if (!QuickIOPath.Exists(fullpath))
{
return(null);
}
Win32FindData win32FindData = SafeGetFindDataFromPath(fullpath);
if (win32FindData == null)
{
//Changed to allow paths which do not exist:
//throw new PathNotFoundException( fullpath );
return(null);
}
// Check for correct type
switch (estimatedFileSystemEntryType)
{
case QuickIOFileSystemEntryType.Directory:
{
// Check for directory flag
if (InternalHelpers.ContainsFileAttribute(win32FindData.dwFileAttributes, FileAttributes.Directory))
{
return(win32FindData);
}
throw new UnmatchedFileSystemEntryTypeException(QuickIOFileSystemEntryType.Directory, QuickIOFileSystemEntryType.File, fullpath);
}
case QuickIOFileSystemEntryType.File:
{
// Check for directory flag
if (!InternalHelpers.ContainsFileAttribute(win32FindData.dwFileAttributes, FileAttributes.Directory))
{
return(win32FindData);
}
throw new UnmatchedFileSystemEntryTypeException(QuickIOFileSystemEntryType.File, QuickIOFileSystemEntryType.Directory, fullpath);
}
case null:
default:
{
return(win32FindData);
}
}
}
public static bool FileExists(string path)
{
Contract.Requires(!String.IsNullOrWhiteSpace(path));
int win32Error;
var attrs = InternalQuickIO.SafeGetAttributes(path, out win32Error);
if (Equals(attrs, 0xffffffff))
{
return(false);
}
if (!InternalHelpers.ContainsFileAttribute(FileAttributes.Directory, ( FileAttributes )attrs))
{
return(true);
}
throw new UnmatchedFileSystemEntryTypeException(QuickIOFileSystemEntryType.File, QuickIOFileSystemEntryType.Directory, path);
}
/// <summary>
/// Determines the type based on the attributes of the handle
/// </summary>
/// <param name="findData"><see cref="Win32FindData"/></param>
/// <returns><see cref="QuickIOFileSystemEntryType"/></returns>
internal static QuickIOFileSystemEntryType DetermineFileSystemEntry(Win32FindData findData)
{
Contract.Requires(findData != null);
return(!InternalHelpers.ContainsFileAttribute(findData.dwFileAttributes, FileAttributes.Directory) ? QuickIOFileSystemEntryType.File : QuickIOFileSystemEntryType.Directory);
}
