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PipedInputStream.java, [...]: New version from Classpath.

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* java/io/PipedInputStream.java, java/io/PipedReader.java,
	java/io/PipedOutputStream.java, java/io/PipedWriter.java: New
	version from Classpath.

From-SVN: r33316
This commit is contained in:
Tom Tromey 2000-04-21 20:12:05 +00:00 • committed by Tom Tromey
parent 473e7b07f1
commit 051d082b26
3 changed files with 186 additions and 213 deletions
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20
libjava/java/io/PipedInputStream.java
View file

@ -1,5 +1,5 @@
/* PipedInputStream.java -- Input stream that reads from an output stream
Copyright (C) 1998, 1999 Free Software Foundation, Inc.
Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
This file is part of GNU Classpath.
@ -67,23 +67,10 @@ protected static final int PIPE_SIZE = 2048;
*/
private static int pipe_size;
/**
* This variable indicates whether or not the <code>read()</code> method will attempt
* return a short count if this will possibly keep the stream from blocking.
* The default for this is <code>false</code> because that is what what the JDK seems
* to imply in its javadocs. We set this to <code>false</code> if the system
* property <code>gnu.java.io.try_not_to_block</code> is set.
*/
private static boolean try_not_to_block = false;
static
{
pipe_size = Integer.getInteger("gnu.java.io.PipedInputStream.pipe_size",
PIPE_SIZE).intValue();
String block_prop = System.getProperty("gnu.java.io.try_not_to_block");
if (block_prop != null)
try_not_to_block = true;
}
/*************************************************************************/
@ -373,9 +360,8 @@ read(byte[] buf, int offset, int len) throws IOException
return(bytes_read);
// Return a short count if necessary
if (bytes_read < len)
if (try_not_to_block)
return(bytes_read);
if (bytes_read > 0 && bytes_read < len)
return(bytes_read);
// Handle the case where the end of stream was encountered.
if (closed)