view base/src/java/io/FileInputStream.d @ 120:536e43f63c81

Comprehensive update for Win32/Linux32 dmd-2.053/dmd-1.068+Tango-r5661 ===D2=== * added [Try]Immutable/Const/Shared templates to work with differenses in D1/D2 instead of version statements used these templates to work with strict type storage rules of dmd-2.053 * com.ibm.icu now also compilable with D2, but not tested yet * small fixes Snippet288 - shared data is in TLS ===Phobos=== * fixed critical bugs in Phobos implemention completely incorrect segfault prone fromStringz (Linux's port ruthless killer) terrible, incorrect StringBuffer realization (StyledText killer) * fixed small bugs as well Snippet72 - misprint in the snippet * implemented missed functionality for Phobos ByteArrayOutputStream implemented (image loading available) formatting correctly works for all DWT's cases As a result, folowing snippets now works with Phobos (Snippet### - what is fixed): Snippet24, 42, 111, 115, 130, 235, 276 - bad string formatting Snippet48, 282 - crash on image loading Snippet163, 189, 211, 213, 217, 218, 222 - crash on copy/cut in StyledText Snippet244 - hang-up ===Tango=== * few changes for the latest Tango trunc-r5661 * few small performance improvments ===General=== * implMissing-s for only one version changed to implMissingInTango/InPhobos * incorrect calls to Format in toString-s fixed * fixed loading \uXXXX characters in ResourceBundle * added good UTF-8 support for StyledText, TextLayout (Win32) and friends UTF functions revised and tested. It is now in java.nonstandard.*Utf modules StyledText and TextLayout (Win32) modules revised for UTF-8 support * removed small diferences in most identical files in *.swt.* folders *.swt.internal.image, *.swt.events and *.swt.custom are identical in Win32/Linux32 now 179 of 576 (~31%) files in *.swt.* folders are fully identical * Win32: snippets now have right subsystem, pretty icons and native system style controls * small fixes in snippets Snippet44 - it's not Snippet44 Snippet212 - functions work with different images and offsets arrays Win32: Snippet282 - crash on close if the button has an image Snippet293 - setGrayed is commented and others Win32: As a result, folowing snippets now works Snippet68 - color doesn't change Snippet163, 189, 211, 213, 217, 218, 222 - UTF-8 issues (see above) Snippet193 - no tabel headers
author Denis Shelomovskij <verylonglogin.reg@gmail.com>
date Sat, 09 Jul 2011 15:50:20 +0300
parents 9f4c18c268b2
children
line wrap: on
line source

/**
 * Authors: Frank Benoit <keinfarbton@googlemail.com>
 */
module java.io.FileInputStream;

import java.lang.all;
import java.io.File;
import java.io.InputStream;

version(Tango){
    import TangoFile = tango.io.device.File;
} else { // Phobos
    static import std.stream;
}

public class FileInputStream : java.io.InputStream.InputStream {

    alias java.io.InputStream.InputStream.read read;

    version(Tango){
        private TangoFile.File conduit;
    } else { // Phobos
        private std.stream.File conduit;
    }
    private ubyte[] buffer;
    private int buf_pos;
    private int buf_size;
    private const int BUFFER_SIZE = 0x10000;
    private bool eof;

    public this ( String name ){
        version(Tango){
            conduit = new TangoFile.File( name );
        } else { // Phobos
            conduit = new std.stream.File( name );
        }
        buffer = new ubyte[]( BUFFER_SIZE );
    }

    public this ( java.io.File.File file ){
        implMissing( __FILE__, __LINE__ );
        version(Tango){
            conduit = new TangoFile.File( file.getAbsolutePath(), TangoFile.File.ReadExisting );
        } else { // Phobos
            conduit = new std.stream.File( file.getAbsolutePath(), std.stream.FileMode.In );
        }
        buffer = new ubyte[]( BUFFER_SIZE );
    }

    public override int read(){
        version(Tango){
            if( eof ){
                return -1;
            }
            try{
                if( buf_pos == buf_size ){
                    buf_pos = 0;
                    buf_size = conduit.input.read( buffer );
                }
                if( buf_size <= 0 ){
                    eof = true;
                    return -1;
                }
                assert( buf_pos < BUFFER_SIZE, Format( "{0} {1}", buf_pos, buf_size ) );
                assert( buf_size <= BUFFER_SIZE );
                int res = cast(int) buffer[ buf_pos ];
                buf_pos++;
                return res;
            }
            catch( IOException e ){
                eof = true;
                return -1;
            }
        } else { // Phobos
            if( eof ){
                return -1;
            }
            try{
                if( buf_pos == buf_size ){
                    buf_pos = 0;
                    buf_size = conduit.read( buffer );
                }
                if( buf_size <= 0 ){
                    eof = true;
                    return -1;
                }
                assert( buf_pos < BUFFER_SIZE, Format( "{} {}", buf_pos, buf_size ) );
                assert( buf_size <= BUFFER_SIZE );
                int res = cast(int) buffer[ buf_pos ];
                buf_pos++;
                return res;
            }
            catch( IOException e ){
                eof = true;
                return -1;
            }
        }
    }

    public long skip( long n ){
        implMissing( __FILE__, __LINE__ );
        return 0L;
    }

    public int available(){
        implMissing( __FILE__, __LINE__ );
        return 0;
    }

    public override void close(){
        conduit.close();
    }
}