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Viewing changes to contrib/Sharpen/Sharpen/RandomAccessFile.cs

  • Committer: Bazaar Package Importer
  • Author(s): Jo Shields
  • Date: 2011-06-27 17:03:13 UTC
  • mto: (1.8.1 upstream)
  • mto: This revision was merged to the branch mainline in revision 54.
  • Revision ID: james.westby@ubuntu.com-20110627170313-6cvz3s19x6e9hqe9
Import upstream version 2.5.92+dfsg

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contrib/Sharpen/Sharpen/RandomAccessFile.cs
 
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namespace Sharpen
 
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{
 
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        using System;
 
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        using System.IO;
 
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        internal class RandomAccessFile
 
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        {
 
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                private FileStream stream;
 
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                public RandomAccessFile (FilePath file, string mode) : this(file.GetPath (), mode)
 
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                {
 
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                }
 
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                public RandomAccessFile (string file, string mode)
 
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                {
 
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                        if (mode.IndexOf ('w') != -1)
 
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                                stream = new FileStream (file, System.IO.FileMode.OpenOrCreate, FileAccess.ReadWrite);
 
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                        else
 
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                                stream = new FileStream (file, System.IO.FileMode.Open, FileAccess.Read);
 
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                }
 
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                public void Close ()
 
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                {
 
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                        stream.Close ();
 
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                }
 
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                public FileChannel GetChannel ()
 
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                {
 
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                        return new FileChannel (this.stream);
 
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                }
 
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                public long GetFilePointer ()
 
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                {
 
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                        return stream.Position;
 
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                }
 
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                public long Length ()
 
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                {
 
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                        return stream.Length;
 
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                }
 
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                public int Read (byte[] buffer)
 
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                {
 
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                        int r = stream.Read (buffer, 0, buffer.Length);
 
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                        return r > 0 ? r : -1;
 
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                }
 
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                public int Read (byte[] buffer, int start, int size)
 
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                {
 
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                        return stream.Read (buffer, start, size);
 
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                }
 
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                public void ReadFully (byte[] buffer, int start, int size)
 
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                {
 
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                        while (size > 0) {
 
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                                int num = stream.Read (buffer, start, size);
 
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                                if (num == 0) {
 
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                                        throw new EOFException ();
 
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                                }
 
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                                size -= num;
 
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                                start += num;
 
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                        }
 
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                }
 
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                public void Seek (long pos)
 
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                {
 
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                        stream.Position = pos;
 
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                }
 
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                public void SetLength (long len)
 
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                {
 
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                        stream.SetLength (len);
 
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                }
 
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                public void Write (byte[] buffer)
 
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                {
 
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                        stream.Write (buffer, 0, buffer.Length);
 
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                }
 
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                public void Write (byte[] buffer, int start, int size)
 
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                {
 
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                        stream.Write (buffer, start, size);
 
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                }
 
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        }
 
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}