1 /*
2 * Copyright (c) 1997, 2018, 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
Java_java_io_FileOutputStream_initIDs(JNIEnv * env,jclass fdClass)47 Java_java_io_FileOutputStream_initIDs(JNIEnv *env, jclass fdClass) {
48 fos_fd = (*env)->GetFieldID(env, fdClass, "fd", "Ljava/io/FileDescriptor;");
49 }
50
51 /**************************************************************
52 * Output stream
53 */
54
55 JNIEXPORT void JNICALL
Java_java_io_FileOutputStream_open0(JNIEnv * env,jobject this,jstring path,jboolean append)56 Java_java_io_FileOutputStream_open0(JNIEnv *env, jobject this,
57 jstring path, jboolean append) {
58 fileOpen(env, this, path, fos_fd,
59 O_WRONLY | O_CREAT | (append ? O_APPEND : O_TRUNC));
60 }
61
62 JNIEXPORT void JNICALL
Java_java_io_FileOutputStream_write(JNIEnv * env,jobject this,jint byte,jboolean append)63 Java_java_io_FileOutputStream_write(JNIEnv *env, jobject this, jint byte, jboolean append) {
64 writeSingle(env, this, byte, append, fos_fd);
65 }
66
67 JNIEXPORT void JNICALL
Java_java_io_FileOutputStream_writeBytes(JNIEnv * env,jobject this,jbyteArray bytes,jint off,jint len,jboolean append)68 Java_java_io_FileOutputStream_writeBytes(JNIEnv *env,
69 jobject this, jbyteArray bytes, jint off, jint len, jboolean append) {
70 writeBytes(env, this, bytes, off, len, append, fos_fd);
71 }
72
73