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authorMichael Koch <konqueror@gmx.de>2003-03-28 08:59:41 +0000
committerMichael Koch <mkoch@gcc.gnu.org>2003-03-28 08:59:41 +0000
commitc54390c5a14d2c67e803a644bbf28ea6e5ab5af5 (patch)
treecd0b4ec0e8d4c924eb78e6228f94a6fceff29411
parentf7670e7ba14e01b614f15672a144dcdf0ac350de (diff)
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2003�03-28 Michael Koch <konqueror@gmx.de>
* java/io/FileOutputStream.java: Merged class documentation and authors with classpath. (FileOutputStream): Partly merged with classpath. (write): Merged with classpath. (getChannel): Make it synchronized instead of explicit block in this method. * java/io/RandomAccessFile.java: Merged class documentation and authors with classpath. From-SVN: r64963
-rw-r--r--libjava/ChangeLog11
-rw-r--r--libjava/java/io/FileOutputStream.java41
-rw-r--r--libjava/java/io/RandomAccessFile.java16
3 files changed, 48 insertions, 20 deletions
diff --git a/libjava/ChangeLog b/libjava/ChangeLog
index 78f09cb..97dc76f 100644
--- a/libjava/ChangeLog
+++ b/libjava/ChangeLog
@@ -1,3 +1,14 @@
+2003­03-28 Michael Koch <konqueror@gmx.de>
+
+ * java/io/FileOutputStream.java:
+ Merged class documentation and authors with classpath.
+ (FileOutputStream): Partly merged with classpath.
+ (write): Merged with classpath.
+ (getChannel): Make it synchronized instead of explicit block in this
+ method.
+ * java/io/RandomAccessFile.java:
+ Merged class documentation and authors with classpath.
+
2003-03-26 Tom Tromey <tromey@redhat.com>
* java/lang/natRuntime.cc (insertSystemProperties): Set
diff --git a/libjava/java/io/FileOutputStream.java b/libjava/java/io/FileOutputStream.java
index c0f8b268..1c75ccd 100644
--- a/libjava/java/io/FileOutputStream.java
+++ b/libjava/java/io/FileOutputStream.java
@@ -47,8 +47,11 @@ import gnu.java.nio.FileChannelImpl;
*/
/**
+ * This classes allows a stream of data to be written to a disk file or
+ * any open <code>FileDescriptor</code>.
+ *
+ * @author Aaron M. Renn <arenn@urbanophile.com>
* @author Tom Tromey <tromey@cygnus.com>
- * @date September 24, 1998
*/
public class FileOutputStream extends OutputStream
{
@@ -174,9 +177,15 @@ public class FileOutputStream extends OutputStream
public FileOutputStream (FileDescriptor fdObj)
throws SecurityException
{
+ // Hmm, no other exception but this one to throw, but if the descriptor
+ // isn't valid, we surely don't have "permission" to write to it.
+ if (!fdObj.valid())
+ throw new SecurityException("Invalid FileDescriptor");
+
SecurityManager s = System.getSecurityManager();
if (s != null)
s.checkWrite(fdObj);
+
fd = fdObj;
}
@@ -221,9 +230,10 @@ public class FileOutputStream extends OutputStream
*
* @exception IOException If an error occurs
*/
- public void write (byte[] b) throws IOException, NullPointerException
+ public void write (byte[] buf)
+ throws IOException
{
- fd.write (b, 0, b.length);
+ fd.write (buf, 0, buf.length);
}
/**
@@ -236,12 +246,15 @@ public class FileOutputStream extends OutputStream
*
* @exception IOException If an error occurs
*/
- public void write (byte[] b, int off, int len)
- throws IOException, NullPointerException, IndexOutOfBoundsException
+ public void write (byte[] buf, int offset, int len)
+ throws IOException
{
- if (off < 0 || len < 0 || off + len > b.length)
+ if (offset < 0
+ || len < 0
+ || offset + len > buf.length)
throw new ArrayIndexOutOfBoundsException ();
- fd.write (b, off, len);
+
+ fd.write (buf, offset, len);
}
/**
@@ -263,15 +276,13 @@ public class FileOutputStream extends OutputStream
* A file channel must be created by first creating an instance of
* Input/Output/RandomAccessFile and invoking the getChannel() method on it.
*/
- public FileChannel getChannel ()
+ public synchronized FileChannel getChannel()
{
- synchronized (this)
- {
- if (ch == null)
- ch = new FileChannelImpl (fd, true, this);
+ if (ch == null)
+ ch = new FileChannelImpl (fd, true, this);
- return ch;
- }
+ return ch;
}
-}
+} // class FileOutputStream
+
diff --git a/libjava/java/io/RandomAccessFile.java b/libjava/java/io/RandomAccessFile.java
index 91acb5d..21838c5 100644
--- a/libjava/java/io/RandomAccessFile.java
+++ b/libjava/java/io/RandomAccessFile.java
@@ -41,16 +41,22 @@ package java.io;
import java.nio.channels.FileChannel;
import gnu.java.nio.FileChannelImpl;
-/**
- * @author Tom Tromey <tromey@cygnus.com>
- * @date September 25, 1998
- */
-
/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
* "The Java Language Specification", ISBN 0-201-63451-1
* Status: Believe complete and correct to 1.1.
*/
+/**
+ * This class allows reading and writing of files at random locations.
+ * Most Java I/O classes are either pure sequential input or output. This
+ * class fulfills the need to be able to read the bytes of a file in an
+ * arbitrary order. In addition, this class implements the
+ * <code>DataInput</code> and <code>DataOutput</code> interfaces to allow
+ * the reading and writing of Java primitives.
+ *
+ * @author Aaron M. Renn <arenn@urbanophile.com>
+ * @author Tom Tromey <tromey@cygnus.com>
+ */
public class RandomAccessFile implements DataOutput, DataInput
{