A light version of a std Java class that updates a hash while writing bytes to a stream.
Inheritance: Stream
Exemple #1
0
		private void WriteTo(Stream os)
		{
			MessageDigest foot = Constants.newMessageDigest();
			var dos = new DigestOutputStream(os, foot);

			// Write the header.
			//
			var tmp = new byte[128];
			Array.Copy(SigDirc, 0, tmp, 0, SigDirc.Length);
			NB.encodeInt32(tmp, 4, /* version */2);
			NB.encodeInt32(tmp, 8, _entryCnt);
			dos.Write(tmp, 0, 12);

			// Write the individual file entries.
			//
			if (_lastModified == DateTime.MinValue)
			{
				// Write a new index, as no entries require smudging.
				//
				for (int i = 0; i < _entryCnt; i++)
				{
					_sortedEntries[i].write(dos);
				}
			}
			else
			{
				var smudge_s = _lastModified.ToUnixTime();
				var smudge_ns = _lastModified.Millisecond * 1000000; // [henon] <--- this could be done with much more precision in C# since DateTime has 100 nanosec ticks
				for (int i = 0; i < _entryCnt; i++)
				{
					DirCacheEntry e = _sortedEntries[i];
					if (e.mightBeRacilyClean(smudge_s, smudge_ns))
						e.smudgeRacilyClean();
					e.write(dos);
				}
			}

			if (_cacheTree != null)
			{
				var bb = new TemporaryBuffer();
				_cacheTree.write(tmp, bb);
				bb.close();

				NB.encodeInt32(tmp, 0, ExtTree);
				NB.encodeInt32(tmp, 4, (int)bb.Length);
				dos.Write(tmp, 0, 8);
				bb.writeTo(dos, null);
			}
			var hash = foot.Digest();
			os.Write(hash, 0, hash.Length);
			os.Close();
		}
Exemple #2
0
        private void WriteTo(Stream os)
        {
            MessageDigest foot = Constants.newMessageDigest();
            var dos = new DigestOutputStream(os, foot);

            // Write the header.
            //
            var tmp = new byte[128];
            Array.Copy(SigDirc, 0, tmp, 0, SigDirc.Length);
            NB.encodeInt32(tmp, 4, /* version */2);
            NB.encodeInt32(tmp, 8, _entryCnt);
            dos.Write(tmp, 0, 12);

            // Write the individual file entries.
            //
            if (_lastModified <= 0) 
            {
                // Write a new index, as no entries require smudging.
                //
                for (int i = 0; i < _entryCnt; i++)
                {
                    _sortedEntries[i].write(dos);
                }
            }
            else
            {
                int smudge_s = (int)(_lastModified / 1000);
                int smudge_ns = ((int)(_lastModified % 1000)) * 1000000;
                for (int i = 0; i < _entryCnt; i++)
                {
                    DirCacheEntry e = _sortedEntries[i];
                    if (e.mightBeRacilyClean(smudge_s, smudge_ns))
                        e.smudgeRacilyClean();
                    e.write(dos);
                }
            }

            if (_cacheTree != null)
            {
                var bb = new LocalFileBuffer();
                _cacheTree.write(tmp, bb);
                bb.close();

                NB.encodeInt32(tmp, 0, ExtTree);
                NB.encodeInt32(tmp, 4, (int)bb.Length);
                dos.Write(tmp, 0, 8);
                bb.writeTo(dos, null);
            }
            var hash = foot.Digest();
            os.Write(hash, 0, hash.Length);
            os.Close();
        }