FileKey.c revision 0
0N/A/*
0N/A * Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation. Sun designates this
0N/A * particular file as subject to the "Classpath" exception as provided
0N/A * by Sun in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
0N/A * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
0N/A * CA 95054 USA or visit www.sun.com if you need additional information or
0N/A * have any questions.
0N/A */
0N/A
0N/A#include "jni.h"
0N/A#include "jni_util.h"
0N/A#include "jvm.h"
0N/A#include "nio.h"
0N/A#include "nio_util.h"
0N/A#include "sun_nio_ch_FileKey.h"
0N/A
0N/Astatic jfieldID key_st_dev; /* id for FileKey.st_dev */
0N/Astatic jfieldID key_st_ino; /* id for FileKey.st_ino */
0N/A
0N/A#define RESTARTABLE(_cmd, _result) do { \
0N/A do { \
0N/A _result = _cmd; \
0N/A } while ((_result == -1) && (errno == EINTR)); \
0N/A} while(0)
0N/A
0N/A
0N/AJNIEXPORT void JNICALL
0N/AJava_sun_nio_ch_FileKey_initIDs(JNIEnv *env, jclass clazz)
0N/A{
0N/A key_st_dev = (*env)->GetFieldID(env, clazz, "st_dev", "J");
0N/A key_st_ino = (*env)->GetFieldID(env, clazz, "st_ino", "J");
0N/A}
0N/A
0N/A
0N/AJNIEXPORT void JNICALL
0N/AJava_sun_nio_ch_FileKey_init(JNIEnv *env, jobject this, jobject fdo)
0N/A{
0N/A struct stat64 fbuf;
0N/A int res;
0N/A
0N/A RESTARTABLE(fstat64(fdval(env, fdo), &fbuf), res);
0N/A if (res < 0) {
0N/A JNU_ThrowIOExceptionWithLastError(env, "fstat64 failed");
0N/A } else {
0N/A (*env)->SetLongField(env, this, key_st_dev, (jlong)fbuf.st_dev);
0N/A (*env)->SetLongField(env, this, key_st_ino, (jlong)fbuf.st_ino);
0N/A }
0N/A}