| /* |
| * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #include "jni.h" |
| #include "jni_util.h" |
| #include "jvm.h" |
| #include "nio.h" |
| #include "nio_util.h" |
| #include <nativehelper/JNIHelp.h> |
| |
| #define NATIVE_METHOD(className, functionName, signature) \ |
| { #functionName, signature, (void*)(className ## _ ## functionName) } |
| |
| // Android-changed: Alias *64 on Fuchsia builds. http://b/119496969 |
| // #ifdef _ALLBSD_SOURCE |
| #if defined(_ALLBSD_SOURCE) || defined(__Fuchsia__) |
| #define stat64 stat |
| |
| #define fstat64 fstat |
| #endif |
| |
| static jfieldID key_st_dev; /* id for FileKey.st_dev */ |
| static jfieldID key_st_ino; /* id for FileKey.st_ino */ |
| |
| |
| static void FileKey_initIDs(JNIEnv *env) |
| { |
| jclass clazz = (*env)->FindClass(env, "sun/nio/ch/FileKey"); |
| key_st_dev = (*env)->GetFieldID(env, clazz, "st_dev", "J"); |
| key_st_ino = (*env)->GetFieldID(env, clazz, "st_ino", "J"); |
| } |
| |
| |
| JNIEXPORT void JNICALL |
| FileKey_init(JNIEnv *env, jobject this, jobject fdo) |
| { |
| struct stat64 fbuf; |
| int res; |
| |
| RESTARTABLE(fstat64(fdval(env, fdo), &fbuf), res); |
| if (res < 0) { |
| JNU_ThrowIOExceptionWithLastError(env, "fstat64 failed"); |
| } else { |
| (*env)->SetLongField(env, this, key_st_dev, (jlong)fbuf.st_dev); |
| (*env)->SetLongField(env, this, key_st_ino, (jlong)fbuf.st_ino); |
| } |
| } |
| |
| static JNINativeMethod gMethods[] = { |
| NATIVE_METHOD(FileKey, init, "(Ljava/io/FileDescriptor;)V"), |
| }; |
| |
| void register_sun_nio_ch_FileKey(JNIEnv* env) { |
| jniRegisterNativeMethods(env, "sun/nio/ch/FileKey", gMethods, NELEM(gMethods)); |
| FileKey_initIDs(env); |
| } |