Example #1
0
        /// <summary> Enumerates the files in this collection. </summary>
        /// <param name="target">        The target to act on. </param>
        /// <param name="searchPattern"> A pattern specifying the search. </param>
        /// <returns>
        ///     An enumerator that allows foreach to be used to process the files in this collection.
        /// </returns>
        public static IEnumerable <FileInfo> EnumerateFiles(this DirectoryInfo target, string searchPattern)
        {
            const int MAX_PATH     = 248;
            const int MAX_FILENAME = 260;

            string searchPath = Path.Combine(target.FullName, searchPattern);

            if (searchPath.Length >= MAX_PATH)
            {
                yield break;
            }

            NativeWin32.WIN32_FIND_DATA findData;
            using (NativeWin32.SafeSearchHandle hFindFile = NativeWin32.FindFirstFile(searchPath, out findData))
            {
                if (!hFindFile.IsInvalid)
                {
                    do
                    {
                        if ((findData.dwFileAttributes & FileAttributes.Directory) == 0 && findData.cFileName != "." && findData.cFileName != "..")
                        {
                            string fileName = Path.Combine(target.FullName, findData.cFileName);
                            if (fileName.Length >= MAX_FILENAME)
                            {
                                yield break;
                            }
                            else
                            {
                                yield return(new FileInfo(Path.Combine(target.FullName, findData.cFileName)));
                            }
                        }
                    } while (NativeWin32.FindNextFile(hFindFile, out findData));
                }
            }
        }
 IEnumerable <FileInfo> EnumerateFiles(string directory, string searchPattern)
 {
     NativeWin32.WIN32_FIND_DATA findData;
     using (NativeWin32.SafeSearchHandle hFindFile = NativeWin32.FindFirstFile(Path.Combine(directory, searchPattern), out findData))
     {
         if (!hFindFile.IsInvalid)
         {
             do
             {
                 if ((findData.dwFileAttributes & FileAttributes.Directory) == 0 && findData.cFileName != "." && findData.cFileName != "..")
                 {
                     long len = (((long)findData.nFileSizeHigh) << 0x20) | findData.nFileSizeLow;
                     yield return(new FileInfo {
                         FileName = Path.Combine(directory, findData.cFileName), FileSize = len
                     });
                 }
             } while (NativeWin32.FindNextFile(hFindFile, out findData));
         }
     }
 }