Mercurial > projects > dwt-win
annotate dwt/dwthelper/FileInputStream.d @ 332:1ee938a6e02e
Tango updates, removing trace prints and added prints via Logger
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 01 Feb 2009 19:40:09 +0100 |
| parents | 8d53428f9be0 |
| children | f866e80af235 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Authors: Frank Benoit <keinfarbton@googlemail.com> | |
| 3 */ | |
| 4 module dwt.dwthelper.FileInputStream; | |
| 5 | |
| 6 import dwt.dwthelper.utils; | |
| 7 import dwt.dwthelper.File; | |
| 8 import dwt.dwthelper.InputStream; | |
| 9 | |
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10 version(TANGOSVN){ |
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11 import TangoFile = tango.io.device.File; |
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12 } else { |
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13 import TangoFile = tango.io.FileConduit; |
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14 } |
| 0 | 15 import tango.io.protocol.Reader; |
| 16 import tango.core.Exception; | |
| 17 import tango.text.convert.Format; | |
| 18 | |
| 19 public class FileInputStream : dwt.dwthelper.InputStream.InputStream { | |
| 20 | |
| 21 alias dwt.dwthelper.InputStream.InputStream.read read; | |
| 22 | |
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23 private TangoFile.File conduit; |
| 0 | 24 private ubyte[] buffer; |
| 25 private int buf_pos; | |
| 26 private int buf_size; | |
| 27 private const int BUFFER_SIZE = 0x10000; | |
| 28 private bool eof; | |
| 29 | |
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30 public this ( String name ){ |
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31 conduit = new TangoFile.File( name ); |
| 0 | 32 buffer = new ubyte[]( BUFFER_SIZE ); |
| 33 } | |
| 34 | |
| 35 public this ( dwt.dwthelper.File.File file ){ | |
| 36 implMissing( __FILE__, __LINE__ ); | |
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changeset
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37 conduit = new TangoFile.File( file.getAbsolutePath(), TangoFile.File.ReadExisting ); |
| 0 | 38 buffer = new ubyte[]( BUFFER_SIZE ); |
| 39 } | |
| 40 | |
| 41 public override int read(){ | |
| 42 if( eof ){ | |
| 43 return -1; | |
| 44 } | |
| 45 try{ | |
| 46 if( buf_pos == buf_size ){ | |
| 47 buf_pos = 0; | |
| 48 buf_size = conduit.input.read( buffer ); | |
| 49 } | |
| 50 if( buf_size <= 0 ){ | |
| 51 eof = true; | |
| 52 return -1; | |
| 53 } | |
| 54 assert( buf_pos < BUFFER_SIZE, Format( "{0} {1}", buf_pos, buf_size ) ); | |
| 55 assert( buf_size <= BUFFER_SIZE ); | |
| 56 int res = cast(int) buffer[ buf_pos ]; | |
| 57 buf_pos++; | |
| 58 return res; | |
| 59 } | |
| 60 catch( IOException e ){ | |
| 61 eof = true; | |
| 62 return -1; | |
| 63 } | |
| 64 } | |
| 65 | |
| 66 public long skip( long n ){ | |
| 67 implMissing( __FILE__, __LINE__ ); | |
| 68 return 0L; | |
| 69 } | |
| 70 | |
| 71 public int available(){ | |
| 72 implMissing( __FILE__, __LINE__ ); | |
| 73 return 0; | |
| 74 } | |
| 75 | |
| 76 public override void close(){ | |
| 77 conduit.close(); | |
| 78 } | |
| 79 } | |
| 80 | |
| 81 |