1/*
2 * Copyright (c) 2005, 2012, 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#include "nio.h"
30#include "nio_util.h"
31#include "sun_nio_ch_FileKey.h"
32
33#ifdef _ALLBSD_SOURCE
34#define stat64 stat
35
36#define fstat64 fstat
37#endif
38
39static jfieldID key_st_dev; /* id for FileKey.st_dev */
40static jfieldID key_st_ino; /* id for FileKey.st_ino */
41
42
43JNIEXPORT void JNICALL
44Java_sun_nio_ch_FileKey_initIDs(JNIEnv *env, jclass clazz)
45{
46 CHECK_NULL(key_st_dev = (*env)->GetFieldID(env, clazz, "st_dev", "J"));
47 CHECK_NULL(key_st_ino = (*env)->GetFieldID(env, clazz, "st_ino", "J"));
48}
49
50
51JNIEXPORT void JNICALL
52Java_sun_nio_ch_FileKey_init(JNIEnv *env, jobject this, jobject fdo)
53{
54 struct stat64 fbuf;
55 int res;
56
57 RESTARTABLE(fstat64(fdval(env, fdo), &fbuf), res);
58 if (res < 0) {
59 JNU_ThrowIOExceptionWithLastError(env, "fstat64 failed");
60 } else {
61 (*env)->SetLongField(env, this, key_st_dev, (jlong)fbuf.st_dev);
62 (*env)->SetLongField(env, this, key_st_ino, (jlong)fbuf.st_ino);
63 }
64}
65