1 /*

     2  * Copyright (c) 2003, 2010, 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 #include "java_io_FileOutputStream.h"

    33 

    34 #include <fcntl.h>

    35 

    36 /*******************************************************************/

    37 /*  BEGIN JNI ********* BEGIN JNI *********** BEGIN JNI ************/

    38 /*******************************************************************/

    39 

    40 jfieldID fos_fd; /* id for jobject 'fd' in java.io.FileOutputStream */

    41 

    42 /**************************************************************

    43  * static methods to store field ID's in initializers

    44  */

    45 

    46 JNIEXPORT void JNICALL

    47 Java_java_io_FileOutputStream_initIDs(JNIEnv *env, jclass fosClass) {

    48     fos_fd =

    49         (*env)->GetFieldID(env, fosClass, "fd", "Ljava/io/FileDescriptor;");

    50 }

    51 

    52 /**************************************************************

    53  * Output stream

    54  */

    55 

    56 JNIEXPORT void JNICALL

    57 Java_java_io_FileOutputStream_open(JNIEnv *env, jobject this,

    58                                    jstring path, jboolean append) {

    59     fileOpen(env, this, path, fos_fd,

    60              O_WRONLY | O_CREAT | (append ? O_APPEND : O_TRUNC));

    61 }

    62 

    63 JNIEXPORT void JNICALL

    64 Java_java_io_FileOutputStream_write(JNIEnv *env, jobject this, jint byte, jboolean append) {

    65     writeSingle(env, this, byte, append, fos_fd);

    66 }

    67 

    68 JNIEXPORT void JNICALL

    69 Java_java_io_FileOutputStream_writeBytes(JNIEnv *env,

    70     jobject this, jbyteArray bytes, jint off, jint len, jboolean append)

    71 {

    72     writeBytes(env, this, bytes, off, len, append, fos_fd);

    73 }

    74 

    75 JNIEXPORT void JNICALL

    76 Java_java_io_FileOutputStream_close0(JNIEnv *env, jobject this) {

    77         handleClose(env, this, fos_fd);

    78 }