Mercurial > projects > dwt-mac
annotate dwt/dwthelper/FileInputStream.d @ 134:623ff6db5f1d
Updated to Tango 0.99.8
author | Jacob Carlborg <doob@me.com> |
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date | Sun, 24 May 2009 22:21:00 +0200 |
parents | c74ba20de292 |
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rev | line source |
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1 /** |
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2 * Authors: Frank Benoit <keinfarbton@googlemail.com> |
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3 */ |
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4 module dwt.dwthelper.FileInputStream; |
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5 |
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6 import dwt.dwthelper.utils; |
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7 import dwt.dwthelper.File; |
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8 import dwt.dwthelper.InputStream; |
134 | 9 import TangoFile = tango.io.device.File; |
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10 import tango.io.protocol.Reader; |
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11 import tango.core.Exception; |
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12 import tango.text.convert.Format; |
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13 |
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14 public class FileInputStream : dwt.dwthelper.InputStream.InputStream { |
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15 |
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16 alias dwt.dwthelper.InputStream.InputStream.read read; |
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17 |
134 | 18 private TangoFile.File conduit; |
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19 private ubyte[] buffer; |
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20 private int buf_pos; |
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21 private int buf_size; |
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22 private const int BUFFER_SIZE = 0x10000; |
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23 private bool eof; |
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24 |
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25 public this ( char[] name ){ |
134 | 26 conduit = new TangoFile.File( name ); |
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27 buffer = new ubyte[]( BUFFER_SIZE ); |
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28 } |
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29 |
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30 public this ( dwt.dwthelper.File.File file ){ |
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31 implMissing( __FILE__, __LINE__ ); |
134 | 32 conduit = new TangoFile.File( file.getAbsolutePath(), TangoFile.File.ReadExisting); |
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33 buffer = new ubyte[]( BUFFER_SIZE ); |
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34 } |
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35 |
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36 public override int read(){ |
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37 if( eof ){ |
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38 return -1; |
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39 } |
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40 try{ |
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41 if( buf_pos is buf_size ){ |
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42 buf_pos = 0; |
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43 buf_size = conduit.input.read( buffer ); |
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44 } |
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45 if( buf_size <= 0 ){ |
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46 eof = true; |
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47 return -1; |
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48 } |
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49 assert( buf_pos < BUFFER_SIZE, Format( "{0} {1}", buf_pos, buf_size ) ); |
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50 assert( buf_size <= BUFFER_SIZE ); |
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51 int res = cast(int) buffer[ buf_pos ]; |
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52 buf_pos++; |
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53 return res; |
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54 } |
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55 catch( IOException e ){ |
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56 eof = true; |
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57 return -1; |
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58 } |
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59 } |
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60 |
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61 public long skip( long n ){ |
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62 implMissing( __FILE__, __LINE__ ); |
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63 return 0L; |
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64 } |
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65 |
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66 public int available(){ |
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67 implMissing( __FILE__, __LINE__ ); |
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68 return 0; |
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69 } |
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70 |
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71 public override void close(){ |
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72 conduit.close(); |
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73 } |
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74 } |
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75 |
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76 |