diff options
Diffstat (limited to 'libjava/java/nio/channels/FileChannel.java')
| -rw-r--r-- | libjava/java/nio/channels/FileChannel.java | 83 |
1 files changed, 41 insertions, 42 deletions
diff --git a/libjava/java/nio/channels/FileChannel.java b/libjava/java/nio/channels/FileChannel.java index 6604e99744e..7e1a33173eb 100644 --- a/libjava/java/nio/channels/FileChannel.java +++ b/libjava/java/nio/channels/FileChannel.java @@ -1,4 +1,4 @@ -/* FileChannel.java -- +/* FileChannel.java -- Copyright (C) 2002 Free Software Foundation, Inc. This file is part of GNU Classpath. @@ -42,6 +42,7 @@ import java.nio.ByteBuffer; import java.nio.MappedByteBuffer; import java.nio.channels.spi.AbstractInterruptibleChannel; + /** * @author Michael Koch * @since 1.4 @@ -52,10 +53,9 @@ public abstract class FileChannel extends AbstractInterruptibleChannel public static class MapMode { int m; - - public static final MapMode READ_ONLY = new MapMode(0); + public static final MapMode READ_ONLY = new MapMode(0); public static final MapMode READ_WRITE = new MapMode(1); - public static final MapMode PRIVATE = new MapMode(2); + public static final MapMode PRIVATE = new MapMode(2); /** * Initializes the MapMode. @@ -68,12 +68,12 @@ public abstract class FileChannel extends AbstractInterruptibleChannel /** * Returns a string representation of the <code>MapMode</code> object. */ - public String toString() + public String toString() { if (this == READ_ONLY) - return "READ_ONLY"; + return "READ_ONLY"; else if (this == READ_WRITE) - return "READ_WRITE"; + return "READ_WRITE"; return "PRIVATE"; } @@ -82,7 +82,7 @@ public abstract class FileChannel extends AbstractInterruptibleChannel /** * Initializes the channel. */ - protected FileChannel () + protected FileChannel() { } @@ -102,34 +102,32 @@ public abstract class FileChannel extends AbstractInterruptibleChannel /** * Return the size of the file thus far - * + * * @exception ClosedChannelException If this channel is closed. */ public abstract long size() throws IOException; - + /** * Writes data to the channel. * * @exception IOException If an I/O error occurs. */ - public final long write (ByteBuffer[] srcs) throws IOException + public final long write(ByteBuffer[] srcs) throws IOException { long result = 0; - + for (int i = 0; i < srcs.length; i++) - { - result += write (srcs[i]); - } - + result += write(srcs[i]); + return result; } - + /** * Writes data to the channel. * * @exception IOException If an I/O error occurs. */ - public abstract int write (ByteBuffer src) throws IOException; + public abstract int write(ByteBuffer src) throws IOException; /** * Writes data to the channel. @@ -145,7 +143,8 @@ public abstract class FileChannel extends AbstractInterruptibleChannel * @exception NonWritableChannelException If this channel was not opened for * writing. */ - public abstract int write (ByteBuffer srcs, long position) throws IOException; + public abstract int write(ByteBuffer srcs, long position) + throws IOException; /** * Writes data to the channel. @@ -154,13 +153,13 @@ public abstract class FileChannel extends AbstractInterruptibleChannel */ public abstract long write(ByteBuffer[] srcs, int offset, int length) throws IOException; - + /** * Reads data from the channel. * * @exception IOException If an I/O error occurs. */ - public abstract long read (ByteBuffer[] dsts, int offset, int length) + public abstract long read(ByteBuffer[] dsts, int offset, int length) throws IOException; /** @@ -168,14 +167,12 @@ public abstract class FileChannel extends AbstractInterruptibleChannel * * @exception IOException If an I/O error occurs. */ - public final long read (ByteBuffer[] dsts) throws IOException + public final long read(ByteBuffer[] dsts) throws IOException { long result = 0; - + for (int i = 0; i < dsts.length; i++) - { - read (dsts [i]); - } + read(dsts[i]); return result; } @@ -186,7 +183,7 @@ public abstract class FileChannel extends AbstractInterruptibleChannel * @exception IOException If an I/O error occurs. */ public abstract int read(ByteBuffer dst) throws IOException; - + /** * Reads data from the channel. * @@ -201,8 +198,9 @@ public abstract class FileChannel extends AbstractInterruptibleChannel * @exception NonReadableChannelException If this channel was not opened for * reading. */ - public abstract int read(ByteBuffer dst, long position) throws IOException; - + public abstract int read(ByteBuffer dst, long position) + throws IOException; + /** * Closes the channel. * @@ -238,9 +236,9 @@ public abstract class FileChannel extends AbstractInterruptibleChannel * another thread is already blocked in this method and is attempting to lock * an overlapping region. */ - public final FileLock lock () throws IOException + public final FileLock lock() throws IOException { - return lock (0, Long.MAX_VALUE, false); + return lock(0, Long.MAX_VALUE, false); } /** @@ -263,7 +261,7 @@ public abstract class FileChannel extends AbstractInterruptibleChannel * @exception NonWritableChannelException If shared is false and this channel * was not opened for writing. */ - public abstract FileLock lock (long position, long size, boolean shared) + public abstract FileLock lock(long position, long size, boolean shared) throws IOException; /** @@ -276,9 +274,9 @@ public abstract class FileChannel extends AbstractInterruptibleChannel * another thread is already blocked in this method and is attempting to lock * an overlapping region. */ - public final FileLock tryLock () throws IOException + public final FileLock tryLock() throws IOException { - return tryLock (0, Long.MAX_VALUE, false); + return tryLock(0, Long.MAX_VALUE, false); } /** @@ -293,7 +291,7 @@ public abstract class FileChannel extends AbstractInterruptibleChannel * another thread is already blocked in this method and is attempting to lock * an overlapping region. */ - public abstract FileLock tryLock (long position, long size, boolean shared) + public abstract FileLock tryLock(long position, long size, boolean shared) throws IOException; /** @@ -302,7 +300,7 @@ public abstract class FileChannel extends AbstractInterruptibleChannel * @exception ClosedChannelException If this channel is closed. * @exception IOException If an I/O error occurs. */ - public abstract long position () throws IOException; + public abstract long position() throws IOException; /** * Sets the position of the channel on the assoziated file. @@ -311,7 +309,8 @@ public abstract class FileChannel extends AbstractInterruptibleChannel * @exception IllegalArgumentException If newPosition is negative. * @exception IOException If an I/O error occurs. */ - public abstract FileChannel position (long newPosition) throws IOException; + public abstract FileChannel position(long newPosition) + throws IOException; /** * Transfers bytes from this channel's file to the given writable byte @@ -331,8 +330,8 @@ public abstract class FileChannel extends AbstractInterruptibleChannel * @exception NonWritableChannelException If the target channel was not * opened for writing. */ - public abstract long transferTo (long position, long count, - WritableByteChannel target) + public abstract long transferTo(long position, long count, + WritableByteChannel target) throws IOException; /** @@ -352,8 +351,8 @@ public abstract class FileChannel extends AbstractInterruptibleChannel * @exception NonWritableChannelException If this channel was not opened for * writing. */ - public abstract long transferFrom (ReadableByteChannel src, long position, - long count) throws IOException; + public abstract long transferFrom(ReadableByteChannel src, long position, + long count) throws IOException; /** * Truncates the channel's file at <code>size</code>. @@ -364,5 +363,5 @@ public abstract class FileChannel extends AbstractInterruptibleChannel * @exception NonWritableChannelException If this channel was not opened for * writing. */ - public abstract FileChannel truncate (long size) throws IOException; + public abstract FileChannel truncate(long size) throws IOException; } |
