Mercurial > projects > dwt2
annotate base/src/java/io/BufferedInputStream.d @ 112:9f4c18c268b2
Update to compile and execute with dmd 2.052.
author | kntroh |
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date | Wed, 16 Mar 2011 21:53:53 +0900 |
parents | 1bf55a6eb092 |
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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 java.io.BufferedInputStream; |
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5 |
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6 import java.io.InputStream; |
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7 import java.lang.all; |
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8 |
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9 public class BufferedInputStream : java.io.InputStream.InputStream { |
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10 |
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11 alias java.io.InputStream.InputStream.read read; |
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12 |
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13 private const int defaultSize = 8192; |
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14 protected byte[] buf; |
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15 protected int count = 0; /// The index one greater than the index of the last valid byte in the buffer. |
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16 protected int pos = 0; /// The current position in the buffer. |
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17 protected int markpos = (-1); |
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18 protected int marklimit; |
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19 java.io.InputStream.InputStream istr; |
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20 |
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21 public this ( java.io.InputStream.InputStream istr ){ |
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22 this( istr, defaultSize ); |
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23 } |
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24 |
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25 public this ( java.io.InputStream.InputStream istr, int size ){ |
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26 this.istr = istr; |
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27 if( size <= 0 ){ |
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28 throw new IllegalArgumentException( "Buffer size <= 0" ); |
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29 } |
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30 buf.length = size; |
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31 } |
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32 |
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33 private InputStream getAndCheckIstr(){ |
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34 InputStream res = istr; |
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35 if( res is null ){ |
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36 throw new IOException( "Stream closed" ); |
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37 } |
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38 return res; |
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39 } |
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40 private byte[] getAndCheckBuf(){ |
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41 byte[] res = buf; |
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42 if( res is null ){ |
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43 throw new IOException( "Stream closed" ); |
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44 } |
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45 return res; |
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46 } |
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47 private void fill(){ |
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48 assert( pos == count ); |
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49 pos = 0; |
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50 count = 0; |
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51 count = getAndCheckIstr().read( buf ); |
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52 if( count < 0 ){ |
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53 count = 0; |
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54 istr = null; |
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55 } |
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56 } |
112 | 57 public int read(){ |
58 synchronized { | |
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59 if( pos >= count ){ |
112 | 60 fill(); |
61 if( pos >= count ){ | |
62 return -1; | |
63 } | |
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64 } |
112 | 65 return getAndCheckBuf()[pos++] & 0xFF; |
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66 } |
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67 } |
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68 |
112 | 69 public int read( byte[] b, int off, int len ){ |
70 synchronized return super.read( b, off, len ); | |
71 } | |
72 | |
73 public long skip( long n ){ | |
74 synchronized return this.istr.skip(n); | |
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75 } |
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76 |
112 | 77 public int available(){ |
78 synchronized { | |
79 int istr_avail = 0; | |
80 if( istr !is null ){ | |
81 istr_avail = istr.available(); | |
82 } | |
83 return istr_avail + (count - pos); | |
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84 } |
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85 } |
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86 |
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87 public synchronized void mark( int readlimit ){ |
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88 implMissing( __FILE__, __LINE__ ); |
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89 this.istr.mark( readlimit ); |
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90 } |
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91 |
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92 public synchronized void reset(){ |
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93 implMissing( __FILE__, __LINE__ ); |
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94 this.istr.reset(); |
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95 } |
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96 |
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97 public bool markSupported(){ |
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98 implMissing( __FILE__, __LINE__ ); |
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99 return false; |
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100 } |
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101 |
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102 public void close(){ |
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103 if (this.istr !is null) { |
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104 this.istr.close(); |
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105 } |
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106 } |
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107 |
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108 |
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109 } |
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110 |
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111 |