Imported gcc-4.4.3

[msp430-gcc.git] / libjava / java / io / InputStreamReader.java

diff --git a/libjava/java/io/InputStreamReader.java b/libjava/java/io/InputStreamReader.java
deleted file mode 100644 (file)
index fff979c..0000000
--- a/libjava/java/io/InputStreamReader.java
+++ /dev/null
@@ -1,168 +0,0 @@
-/* Copyright (C) 1998, 1999, 2001  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
- 
-package java.io;
-import gnu.gcj.convert.*;
-
-/**
- * @author Per Bothner <bothner@cygnus.com>
- * @date April 22, 1998.  
- */
-/* Written using "Java Class Libraries", 2nd edition, plus online
- * API docs for JDK 1.2 beta from http://www.javasoft.com.
- * Status:  Believed complete and correct, but only supports 8859_1.
- */
-
-public class InputStreamReader extends Reader
-{
-  BufferedInputStream in;
-
-  // Buffer of chars read from in and converted but not consumed.
-  char[] work;
-  // Next available character (in work buffer) to read.
-  int wpos;
-  // Last available character (in work buffer) to read.
-  int wcount;
-
-  BytesToUnicode converter;
-
-  public InputStreamReader(InputStream in)
-  {
-    this(in, BytesToUnicode.getDefaultDecoder());
-  }
-
-  public InputStreamReader(InputStream in, String enc)
-    throws UnsupportedEncodingException
-  {
-    this(in, BytesToUnicode.getDecoder(enc));
-  }
-
-  private InputStreamReader(InputStream in, BytesToUnicode decoder)
-  {
-    // FIXME: someone could pass in a BufferedInputStream whose buffer
-    // is smaller than the longest encoded character for this
-    // encoding.  We will probably go into an infinite loop in this
-    // case.  We probably ought to just have our own byte buffering
-    // here.
-    this.in = in instanceof BufferedInputStream
-              ? (BufferedInputStream) in
-              : new BufferedInputStream(in);
-    /* Don't need to call super(in) here as long as the lock gets set. */
-    this.lock = in;
-    converter = decoder;
-    converter.setInput(this.in.buf, 0, 0);
-  }
-
-  public void close() throws IOException
-  {
-    synchronized (lock)
-      {
-       if (in != null)
-         in.close();
-       in = null;
-       work = null;
-       wpos = wcount = 0;
-      }
-  }
-
-  public String getEncoding() { return converter.getName(); }
-
-  public boolean ready() throws IOException
-  {
-    synchronized (lock)
-      {
-       if (in == null)
-         throw new IOException("Stream closed");
-
-       if (wpos < wcount)
-         return true;
-
-       // According to the spec, an InputStreamReader is ready if its
-       // input buffer is not empty (above), or if bytes are
-       // available on the underlying byte stream.
-       return in.available () > 0;
-      }
-  }
-
-  public int read(char buf[], int offset, int length) throws IOException
-  {
-    synchronized (lock)
-      {
-       if (in == null)
-         throw new IOException("Stream closed");
-
-       if (length == 0)
-         return 0;
-
-       int wavail = wcount - wpos;
-       if (wavail <= 0)
-         {
-           // Nothing waiting, so refill our buffer.
-           if (! refill ())
-             return -1;
-           wavail = wcount - wpos;
-         }
-
-       if (length > wavail)
-         length = wavail;
-       System.arraycopy(work, wpos, buf, offset, length);
-       wpos += length;
-       return length;
-      }
-  }
-
-  public int read() throws IOException
-  {
-    synchronized (lock)
-      {
-       if (in == null)
-         throw new IOException("Stream closed");
-
-       int wavail = wcount - wpos;
-       if (wavail <= 0)
-         {
-           // Nothing waiting, so refill our buffer.
-           if (! refill ())
-             return -1;
-         }
-
-       return work[wpos++];
-      }
-  }
-
-  // Read more bytes and convert them into the WORK buffer.
-  // Return false on EOF.
-  private boolean refill () throws IOException
-  {
-    wcount = wpos = 0;
-
-    if (work == null)
-      work = new char[100];
-
-    for (;;)
-      {
-       // We have knowledge of the internals of BufferedInputStream
-       // here.  Eww.
-       in.mark (0);
-       // BufferedInputStream.refill() can only be called when
-       // `pos>=count'.
-       boolean r = in.pos < in.count || in.refill ();
-       in.reset ();
-       if (! r)
-         return false;
-       converter.setInput(in.buf, in.pos, in.count);
-       int count = converter.read (work, wpos, work.length - wpos);
-       in.skip(converter.inpos - in.pos);
-       if (count > 0)
-         {
-           wcount += count;
-           return true;
-         }
-      }
-  }
-}