| /* |
| * Copyright (c) 2005, 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 "sun_nio_ch_FileKey.h" |
| |
| static jfieldID key_volumeSN; /* id for FileKey.dwVolumeSerialNumber */ |
| static jfieldID key_indexHigh; /* id for FileKey.nFileIndexHigh */ |
| static jfieldID key_indexLow; /* id for FileKey.nFileIndexLow */ |
| |
| |
| JNIEXPORT void JNICALL |
| Java_sun_nio_ch_FileKey_initIDs(JNIEnv *env, jclass clazz) |
| { |
| CHECK_NULL(key_volumeSN = (*env)->GetFieldID(env, clazz, "dwVolumeSerialNumber", "J")); |
| CHECK_NULL(key_indexHigh = (*env)->GetFieldID(env, clazz, "nFileIndexHigh", "J")); |
| CHECK_NULL(key_indexLow = (*env)->GetFieldID(env, clazz, "nFileIndexLow", "J")); |
| } |
| |
| |
| JNIEXPORT void JNICALL |
| Java_sun_nio_ch_FileKey_init(JNIEnv *env, jobject this, jobject fdo) |
| { |
| HANDLE fileHandle = (HANDLE)(handleval(env, fdo)); |
| BOOL result; |
| BY_HANDLE_FILE_INFORMATION fileInfo; |
| |
| result = GetFileInformationByHandle(fileHandle, &fileInfo); |
| if (result) { |
| (*env)->SetLongField(env, this, key_volumeSN, fileInfo.dwVolumeSerialNumber); |
| (*env)->SetLongField(env, this, key_indexHigh, fileInfo.nFileIndexHigh); |
| (*env)->SetLongField(env, this, key_indexLow, fileInfo.nFileIndexLow); |
| } else { |
| JNU_ThrowIOExceptionWithLastError(env, "GetFileInformationByHandle failed"); |
| } |
| } |