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PipedWriter.java (flush): Throw exception if stream closed.

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* java/io/PipedWriter.java (flush): Throw exception if stream
	closed.
	* java/io/OutputStreamWriter.java (write): Throw exception if
	stream closed.
	(writeChars): Don't throw exception if stream closed.
	* java/io/CharArrayWriter.java (closed): New field.
	(close): Set it.
	(flush): Throw exception if stream closed.
	(reset): Synchronize on correct lock.  Allow stream to be
	reopened.
	(toCharArray, toString, writeTo): Synchronize.
	(write): Throwe exception if stream closed.
	* java/io/BufferedWriter.java (close): Clear `buffer'.
	(flush): Throw IOException if stream is closed.
	(write): Likewise.

From-SVN: r39927
This commit is contained in:
Tom Tromey 2001-02-20 19:01:55 +00:00 • committed by Tom Tromey
parent c9407e4c67
commit 39f90b7ce0
5 changed files with 120 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

56
libjava/java/io/BufferedWriter.java
View file

@ -1,12 +1,29 @@
// BufferedWriter.java - Filtered character output stream.
/* BufferedWriter.java -- Buffer output into large blocks before writing
Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
/* Copyright (C) 1998, 1999, 2000 Free Software Foundation
This file is part of GNU Classpath.
This file is part of libgcj.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Classpath; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA.
As a special exception, if you link this library with other files to
produce an executable, this library does not by itself cause the
resulting executable to be covered by the GNU General Public License.
This exception does not however invalidate any other reasons why the
executable file might be covered by the GNU General Public License. */
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
package java.io;
@ -67,8 +84,14 @@ public class BufferedWriter extends Writer
*/
public void close () throws IOException
{
localFlush ();
out.close();
synchronized (lock)
{
// It is safe to call localFlush even if the stream is already
// closed.
localFlush ();
out.close();
buffer = null;
}
}
/**
@ -79,8 +102,13 @@ public class BufferedWriter extends Writer
*/
public void flush () throws IOException
{
localFlush ();
out.flush();
synchronized (lock)
{
if (buffer == null)
throw new IOException ("Stream closed");
localFlush ();
out.flush();
}
}
/**
@ -109,6 +137,8 @@ public class BufferedWriter extends Writer
{
synchronized (lock)
{
if (buffer == null)
throw new IOException ("Stream closed");
buffer[count++] = (char) oneChar;
if (count == buffer.length)
localFlush ();
@ -135,6 +165,9 @@ public class BufferedWriter extends Writer
synchronized (lock)
{
if (buffer == null)
throw new IOException ("Stream closed");
// Bypass buffering if there is too much incoming data.
if (count + len > buffer.length)
{
@ -171,6 +204,9 @@ public class BufferedWriter extends Writer
synchronized (lock)
{
if (buffer == null)
throw new IOException ("Stream closed");
if (count + len > buffer.length)
{
localFlush ();