1 /*
2 * Copyright (c) 1997, 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
106 FD fd;
107 jlong cur = jlong_zero;
108 jlong end = jlong_zero;
109
110 fd = GET_FD(this, raf_fd);
111 if (fd == -1) {
112 JNU_ThrowIOException(env, "Stream Closed");
113 return -1;
114 }
115 if ((cur = IO_Lseek(fd, 0L, SEEK_CUR)) == -1) {
116 JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
117 } else if ((end = IO_Lseek(fd, 0L, SEEK_END)) == -1) {
118 JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
119 } else if (IO_Lseek(fd, cur, SEEK_SET) == -1) {
120 JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
121 }
122 return end;
123 }
124
125 JNIEXPORT void JNICALL
126 Java_java_io_RandomAccessFile_seek(JNIEnv *env,
127 jobject this, jlong pos) {
128
129 FD fd;
130
131 fd = GET_FD(this, raf_fd);
132 if (fd == -1) {
133 JNU_ThrowIOException(env, "Stream Closed");
134 return;
135 }
136 if (pos < jlong_zero) {
137 JNU_ThrowIOException(env, "Negative seek offset");
138 } else if (IO_Lseek(fd, pos, SEEK_SET) == -1) {
139 JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
140 }
141 }
142
143 JNIEXPORT void JNICALL
144 Java_java_io_RandomAccessFile_setLength(JNIEnv *env, jobject this,
145 jlong newLength)
146 {
|
1 /*
2 * Copyright (c) 1997, 2013, 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
106 FD fd;
107 jlong cur = jlong_zero;
108 jlong end = jlong_zero;
109
110 fd = GET_FD(this, raf_fd);
111 if (fd == -1) {
112 JNU_ThrowIOException(env, "Stream Closed");
113 return -1;
114 }
115 if ((cur = IO_Lseek(fd, 0L, SEEK_CUR)) == -1) {
116 JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
117 } else if ((end = IO_Lseek(fd, 0L, SEEK_END)) == -1) {
118 JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
119 } else if (IO_Lseek(fd, cur, SEEK_SET) == -1) {
120 JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
121 }
122 return end;
123 }
124
125 JNIEXPORT void JNICALL
126 Java_java_io_RandomAccessFile_seek0(JNIEnv *env,
127 jobject this, jlong pos) {
128
129 FD fd;
130
131 fd = GET_FD(this, raf_fd);
132 if (fd == -1) {
133 JNU_ThrowIOException(env, "Stream Closed");
134 return;
135 }
136 if (pos < jlong_zero) {
137 JNU_ThrowIOException(env, "Negative seek offset");
138 } else if (IO_Lseek(fd, pos, SEEK_SET) == -1) {
139 JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
140 }
141 }
142
143 JNIEXPORT void JNICALL
144 Java_java_io_RandomAccessFile_setLength(JNIEnv *env, jobject this,
145 jlong newLength)
146 {
|