Exemple #1
0
        int System.Collections.IComparer.Compare(object object1, object object2)
        {
            ExtendedFileInfo efi1 = (ExtendedFileInfo)object1;
            ExtendedFileInfo efi2 = (ExtendedFileInfo)object2;

            return((int)string.Compare(efi1.fileInfo.Name, efi2.fileInfo.Name));
        }
Exemple #2
0
        /// <summary>
        /// Determine the larger of two files
        /// </summary>
        /// <param name="fi1"></param>
        /// <param name="fi2"></param>
        /// <returns></returns>
        int System.Collections.IComparer.Compare(object object1, object object2)
        {
            ExtendedFileInfo fi1 = (ExtendedFileInfo)object1;
            ExtendedFileInfo fi2 = (ExtendedFileInfo)object2;

            return((int)(fi1.fileInfo.Length - fi2.fileInfo.Length));
        }
Exemple #3
0
        /// <summary>
        /// Retuern true if first 1024 bytes are equal.
        /// </summary>
        private bool fastCheсk(ExtendedFileInfo efi1, ExtendedFileInfo efi2)
        {
            /*byte[] b1 = new byte[chunkSize];
            *  byte[] b2 = new byte[chunkSize];*/
            if (efi1.Chunk == null)
            {
                efi1.Chunk = new byte[chunkSize];
                int b1Read;
                using (FileStream file1 = File.OpenRead(efi1.fileInfo.FullName))
                {
                    b1Read = file1.Read(efi1.Chunk, 0, efi1.Chunk.Length);
                }
                if (b1Read < chunkSize)
                {
                    new CrashReport("SortByChecksum.fastCheсk() b1Read < chunkSize!");
                }
            }
            if (efi2.Chunk == null)
            {
                efi2.Chunk = new byte[chunkSize];
                int b2Read;
                using (FileStream file2 = File.OpenRead(efi2.fileInfo.FullName))
                {
                    b2Read = file2.Read(efi2.Chunk, 0, efi2.Chunk.Length);
                }
                if (b2Read < chunkSize)
                {
                    new CrashReport("SortByChecksum.fastCheсk() b2Read < chunkSize!");
                }
            }
            return(BlockCompare(efi1.Chunk, efi2.Chunk, 0, chunkSize));

            /*int b1Read;
             * int b2Read;
             * using (FileStream file1 = File.OpenRead(efi1.fileInfo.FullName),
             *  file2 = File.OpenRead(efi2.fileInfo.FullName))
             * {
             *  b1Read = file1.Read(efi1.Chunk, 0, efi1.Chunk.Length);
             *  b2Read = file2.Read(efi2.Chunk, 0, efi2.Chunk.Length);
             * }
             * bool result = BlockCompare(efi1.Chunk, efi2.Chunk, 0, Math.Min(b1Read, b2Read));
             * return result;*/
        }
Exemple #4
0
        /// <summary>
        /// Determine the larger of two files
        /// </summary>
        /// <param name="fi1"></param>
        /// <param name="fi2"></param>
        /// <returns></returns>
        int System.Collections.IComparer.Compare(object object1, object object2)
        {
            ExtendedFileInfo efi1 = (ExtendedFileInfo)object1;
            ExtendedFileInfo efi2 = (ExtendedFileInfo)object2;

            if (FastCheck && (efi1.fileInfo.Length >= FastCheckFileSize))
            {
                if (fastCheсk(efi1, efi2))
                {
                    return((int)string.Compare(efi1.CheckSum, efi2.CheckSum));
                }
                else
                {
                    return(0);
                }
            }
            else
            {
                return((int)string.Compare(efi1.CheckSum, efi2.CheckSum));
            }
            //return (int)string.Compare(efi1.CheckSum, efi2.CheckSum);
        }