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/*
* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.nio.ch;
import dalvik.system.BlockGuard;
import java.io.FileDescriptor;
import java.io.IOException;
class FileDispatcherImpl extends FileDispatcher {
// Android-removed: Code to load native libraries, doesn't make sense on Android.
/*
static {
IOUtil.load();
init();
}
*/
FileDispatcherImpl(boolean append) {
/* append is ignored */
}
FileDispatcherImpl() {
}
int read(FileDescriptor fd, long address, int len) throws IOException {
// Android-added: BlockGuard support.
BlockGuard.getThreadPolicy().onReadFromDisk();
return read0(fd, address, len);
}
int pread(FileDescriptor fd, long address, int len, long position)
throws IOException
{
// Android-added: BlockGuard support.
BlockGuard.getThreadPolicy().onReadFromDisk();
return pread0(fd, address, len, position);
}
long readv(FileDescriptor fd, long address, int len) throws IOException {
// Android-added: BlockGuard support.
BlockGuard.getThreadPolicy().onReadFromDisk();
return readv0(fd, address, len);
}
int write(FileDescriptor fd, long address, int len) throws IOException {
// Android-added: BlockGuard support.
BlockGuard.getThreadPolicy().onWriteToDisk();
return write0(fd, address, len);
}
int pwrite(FileDescriptor fd, long address, int len, long position)
throws IOException
{
// Android-added: BlockGuard support.
BlockGuard.getThreadPolicy().onWriteToDisk();
return pwrite0(fd, address, len, position);
}
long writev(FileDescriptor fd, long address, int len)
throws IOException
{
// Android-added: BlockGuard support.
BlockGuard.getThreadPolicy().onWriteToDisk();
return writev0(fd, address, len);
}
int force(FileDescriptor fd, boolean metaData) throws IOException {
// Android-added: BlockGuard support.
BlockGuard.getThreadPolicy().onWriteToDisk();
return force0(fd, metaData);
}
int truncate(FileDescriptor fd, long size) throws IOException {
// Android-added: BlockGuard support.
BlockGuard.getThreadPolicy().onWriteToDisk();
return truncate0(fd, size);
}
long size(FileDescriptor fd) throws IOException {
// Android-added: BlockGuard support.
BlockGuard.getThreadPolicy().onReadFromDisk();
return size0(fd);
}
int lock(FileDescriptor fd, boolean blocking, long pos, long size,
boolean shared) throws IOException
{
// Android-added: BlockGuard support.
BlockGuard.getThreadPolicy().onWriteToDisk();
return lock0(fd, blocking, pos, size, shared);
}
void release(FileDescriptor fd, long pos, long size) throws IOException {
// Android-added: BlockGuard support.
BlockGuard.getThreadPolicy().onWriteToDisk();
release0(fd, pos, size);
}
void close(FileDescriptor fd) throws IOException {
close0(fd);
}
void preClose(FileDescriptor fd) throws IOException {
preClose0(fd);
}
FileDescriptor duplicateForMapping(FileDescriptor fd) {
// file descriptor not required for mapping operations; okay
// to return invalid file descriptor.
return new FileDescriptor();
}
boolean canTransferToDirectly(java.nio.channels.SelectableChannel sc) {
return true;
}
boolean transferToDirectlyNeedsPositionLock() {
return false;
}
// -- Native methods --
static native int read0(FileDescriptor fd, long address, int len)
throws IOException;
static native int pread0(FileDescriptor fd, long address, int len,
long position) throws IOException;
static native long readv0(FileDescriptor fd, long address, int len)
throws IOException;
static native int write0(FileDescriptor fd, long address, int len)
throws IOException;
static native int pwrite0(FileDescriptor fd, long address, int len,
long position) throws IOException;
static native long writev0(FileDescriptor fd, long address, int len)
throws IOException;
static native int force0(FileDescriptor fd, boolean metaData)
throws IOException;
static native int truncate0(FileDescriptor fd, long size)
throws IOException;
static native long size0(FileDescriptor fd) throws IOException;
static native int lock0(FileDescriptor fd, boolean blocking, long pos,
long size, boolean shared) throws IOException;
static native void release0(FileDescriptor fd, long pos, long size)
throws IOException;
static native void close0(FileDescriptor fd) throws IOException;
static native void preClose0(FileDescriptor fd) throws IOException;
static native void closeIntFD(int fd) throws IOException;
// Android-removed: Code to load native libraries, doesn't make sense on Android.
// static native void init();
}
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