Mercurial > hg > CbC > CbC_gcc

annotate zlib/contrib/dotzlib/DotZLib/GZipStream.cs @ 51:ae3a4bfb450b

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add some files of version 4.4.3 that have been forgotten.
author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Sun, 07 Feb 2010 18:27:48 +0900
parents
children 04ced10e8804
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51
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
1 //
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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2 // © Copyright Henrik Ravn 2004
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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3 //
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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4 // Use, modification and distribution are subject to the Boost Software License, Version 1.0.
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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5 // (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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6 //
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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7
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
8 using System;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
9 using System.IO;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
10 using System.Runtime.InteropServices;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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11
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
12 namespace DotZLib
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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13 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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14 /// <summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
15 /// Implements a compressed <see cref="Stream"/>, in GZip (.gz) format.
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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16 /// </summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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17 public class GZipStream : Stream, IDisposable
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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18 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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19 #region Dll Imports
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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20 [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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21 private static extern IntPtr gzopen(string name, string mode);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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22
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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23 [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
24 private static extern int gzclose(IntPtr gzFile);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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25
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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26 [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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27 private static extern int gzwrite(IntPtr gzFile, int data, int length);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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28
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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29 [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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30 private static extern int gzread(IntPtr gzFile, int data, int length);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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31
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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32 [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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33 private static extern int gzgetc(IntPtr gzFile);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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34
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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35 [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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36 private static extern int gzputc(IntPtr gzFile, int c);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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37
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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38 #endregion
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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39
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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40 #region Private data
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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41 private IntPtr _gzFile;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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42 private bool _isDisposed = false;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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43 private bool _isWriting;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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44 #endregion
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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45
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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46 #region Constructors
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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47 /// <summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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48 /// Creates a new file as a writeable GZipStream
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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49 /// </summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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50 /// <param name="fileName">The name of the compressed file to create</param>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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51 /// <param name="level">The compression level to use when adding data</param>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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52 /// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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53 public GZipStream(string fileName, CompressLevel level)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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54 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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55 _isWriting = true;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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56 _gzFile = gzopen(fileName, String.Format("wb{0}", (int)level));
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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57 if (_gzFile == IntPtr.Zero)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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58 throw new ZLibException(-1, "Could not open " + fileName);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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59 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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60
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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61 /// <summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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62 /// Opens an existing file as a readable GZipStream
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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63 /// </summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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64 /// <param name="fileName">The name of the file to open</param>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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65 /// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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66 public GZipStream(string fileName)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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67 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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68 _isWriting = false;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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69 _gzFile = gzopen(fileName, "rb");
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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70 if (_gzFile == IntPtr.Zero)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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71 throw new ZLibException(-1, "Could not open " + fileName);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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72
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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73 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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74 #endregion
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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75
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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76 #region Access properties
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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77 /// <summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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78 /// Returns true of this stream can be read from, false otherwise
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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79 /// </summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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80 public override bool CanRead
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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81 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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82 get
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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83 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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84 return !_isWriting;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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85 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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86 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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87
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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88
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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89 /// <summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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90 /// Returns false.
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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91 /// </summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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92 public override bool CanSeek
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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93 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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94 get
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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95 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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96 return false;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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97 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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98 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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99
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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100 /// <summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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101 /// Returns true if this tsream is writeable, false otherwise
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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102 /// </summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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103 public override bool CanWrite
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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104 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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105 get
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
106 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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107 return _isWriting;
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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108 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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109 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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110 #endregion
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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111
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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112 #region Destructor & IDispose stuff
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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113
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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114 /// <summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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115 /// Destroys this instance
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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116 /// </summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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117 ~GZipStream()
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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118 {
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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119 cleanUp(false);
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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120 }
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
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121
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
122 /// <summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
123 /// Closes the external file handle
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
124 /// </summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
125 public void Dispose()
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
126 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
127 cleanUp(true);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
128 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
129
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
130 // Does the actual closing of the file handle.
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
131 private void cleanUp(bool isDisposing)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
132 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
133 if (!_isDisposed)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
134 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
135 gzclose(_gzFile);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
136 _isDisposed = true;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
137 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
138 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
139 #endregion
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
140
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
141 #region Basic reading and writing
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
142 /// <summary>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
143 /// Attempts to read a number of bytes from the stream.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
144 /// </summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
145 /// <param name="buffer">The destination data buffer</param>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
146 /// <param name="offset">The index of the first destination byte in <c>buffer</c></param>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
147 /// <param name="count">The number of bytes requested</param>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
148 /// <returns>The number of bytes read</returns>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
149 /// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
150 /// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
151 /// <exception cref="ArgumentException">If <c>offset</c> + <c>count</c> is &gt; buffer.Length</exception>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
152 /// <exception cref="NotSupportedException">If this stream is not readable.</exception>
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
153 /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
154 public override int Read(byte[] buffer, int offset, int count)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
155 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
156 if (!CanRead) throw new NotSupportedException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
157 if (buffer == null) throw new ArgumentNullException();
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kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
158 if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
159 if ((offset+count) > buffer.Length) throw new ArgumentException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
160 if (_isDisposed) throw new ObjectDisposedException("GZipStream");
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
161
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
162 GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
163 int result;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
164 try
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
165 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
166 result = gzread(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
167 if (result < 0)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
168 throw new IOException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
169 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
170 finally
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
171 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
172 h.Free();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
173 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
174 return result;
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
175 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
176
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
177 /// <summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
178 /// Attempts to read a single byte from the stream.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
179 /// </summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
180 /// <returns>The byte that was read, or -1 in case of error or End-Of-File</returns>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
181 public override int ReadByte()
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
182 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
183 if (!CanRead) throw new NotSupportedException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
184 if (_isDisposed) throw new ObjectDisposedException("GZipStream");
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
185 return gzgetc(_gzFile);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
186 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
187
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
188 /// <summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
189 /// Writes a number of bytes to the stream
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
190 /// </summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
191 /// <param name="buffer"></param>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
192 /// <param name="offset"></param>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
193 /// <param name="count"></param>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
194 /// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
195 /// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
196 /// <exception cref="ArgumentException">If <c>offset</c> + <c>count</c> is &gt; buffer.Length</exception>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
197 /// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
198 /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
199 public override void Write(byte[] buffer, int offset, int count)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
200 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
201 if (!CanWrite) throw new NotSupportedException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
202 if (buffer == null) throw new ArgumentNullException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
203 if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
204 if ((offset+count) > buffer.Length) throw new ArgumentException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
205 if (_isDisposed) throw new ObjectDisposedException("GZipStream");
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
206
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
207 GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
208 try
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
209 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
210 int result = gzwrite(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
211 if (result < 0)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
212 throw new IOException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
213 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
214 finally
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
215 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
216 h.Free();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
217 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
218 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
219
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
220 /// <summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
221 /// Writes a single byte to the stream
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
222 /// </summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
223 /// <param name="value">The byte to add to the stream.</param>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
224 /// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
225 /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
226 public override void WriteByte(byte value)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
227 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
228 if (!CanWrite) throw new NotSupportedException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
229 if (_isDisposed) throw new ObjectDisposedException("GZipStream");
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
230
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
231 int result = gzputc(_gzFile, (int)value);
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
232 if (result < 0)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
233 throw new IOException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
234 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
235 #endregion
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
236
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
237 #region Position & length stuff
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
238 /// <summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
239 /// Not supported.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
240 /// </summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
241 /// <param name="value"></param>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
242 /// <exception cref="NotSupportedException">Always thrown</exception>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
243 public override void SetLength(long value)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
244 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
245 throw new NotSupportedException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
246 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
247
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
248 /// <summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
249 /// Not suppported.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
250 /// </summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
251 /// <param name="offset"></param>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
252 /// <param name="origin"></param>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
253 /// <returns></returns>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
254 /// <exception cref="NotSupportedException">Always thrown</exception>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
255 public override long Seek(long offset, SeekOrigin origin)
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
256 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
257 throw new NotSupportedException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
258 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
259
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
260 /// <summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
261 /// Flushes the <c>GZipStream</c>.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
262 /// </summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
263 /// <remarks>In this implementation, this method does nothing. This is because excessive
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
264 /// flushing may degrade the achievable compression rates.</remarks>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
265 public override void Flush()
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
266 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
267 // left empty on purpose
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
268 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
269
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
270 /// <summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
271 /// Gets/sets the current position in the <c>GZipStream</c>. Not suppported.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
272 /// </summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
273 /// <remarks>In this implementation this property is not supported</remarks>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
274 /// <exception cref="NotSupportedException">Always thrown</exception>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
275 public override long Position
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
276 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
277 get
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
278 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
279 throw new NotSupportedException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
280 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
281 set
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
282 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
283 throw new NotSupportedException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
284 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
285 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
286
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
287 /// <summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
288 /// Gets the size of the stream. Not suppported.
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
289 /// </summary>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
290 /// <remarks>In this implementation this property is not supported</remarks>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
291 /// <exception cref="NotSupportedException">Always thrown</exception>
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
292 public override long Length
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
293 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
294 get
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
295 {
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
296 throw new NotSupportedException();
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
297 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
298 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
299 #endregion
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
300 }
ae3a4bfb450b add some files of version 4.4.3 that have been forgotten.
kent <kent@cr.ie.u-ryukyu.ac.jp>
parents:
diff changeset
301 }