1 /*
   2  * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #include "jni.h"
  27 #include "jni_util.h"
  28 #include "jvm.h"
  29 
  30 #include "io_util.h"
  31 #include "io_util_md.h"
  32 
  33 #include "java_io_RandomAccessFile.h"
  34 
  35 extern jfieldID raf_fd; /* id for jobject 'fd' in java.io.RandomAccessFile */
  36 
  37 /*********************************************************************
  38  * Platform specific implementation of input stream native methods
  39  */
  40 
  41 JNIEXPORT void JNICALL
  42 Java_java_io_RandomAccessFile_open0(JNIEnv *env,
  43                                     jobject this, jstring path, jint mode)
  44 {
  45     int flags = 0;
  46     if (mode & java_io_RandomAccessFile_O_DIRECT)
  47         JNU_ThrowIOException (env, "DirectIO is not available on Windows platform!");
  48 
  49     if (mode & java_io_RandomAccessFile_O_RDONLY) {
  50         flags = O_RDONLY;
  51     }
  52     else if (mode & java_io_RandomAccessFile_O_RDWR) {
  53         flags = O_RDWR | O_CREAT;
  54         if (mode & java_io_RandomAccessFile_O_SYNC)
  55             flags |= O_SYNC;
  56         else if (mode & java_io_RandomAccessFile_O_DSYNC)
  57             flags |= O_DSYNC;
  58     }
  59     else if (mode & java_io_RandomAccessFile_O_TEMPORARY)
  60         flags |= O_TEMPORARY;
  61     fileOpen(env, this, path, raf_fd, flags);
  62 }
  63 
  64 JNIEXPORT void JNICALL
  65 Java_java_io_RandomAccessFile_close0(JNIEnv *env, jobject this) {
  66     handleClose(env, this, raf_fd);
  67 }
  68 
  69 JNIEXPORT jint JNICALL
  70 Java_java_io_RandomAccessFile_getPageSize0(JNIEnv *env, jobject this) {
  71     JNU_ThrowIOException (env, "DirectIO is not available on Windows platform!");
  72     return 0;
  73 }
  74 
  75 JNIEXPORT jint JNICALL
  76 Java_java_io_RandomAccessFile_readBytesD(JNIEnv *env,
  77     jobject this, jbyteArray bytes, jint off, jint len) {
  78     JNU_ThrowIOException (env, "DirectIO is not available on Windows platform!");
  79     return 0;
  80 }
  81 
  82 JNIEXPORT void JNICALL
  83 Java_java_io_RandomAccessFile_writeBytesD(JNIEnv *env,
  84     jobject this, jbyteArray bytes, jint off, jint len) {
  85     JNU_ThrowIOException (env, "DirectIO is not available on Windows platform!");
  86 }