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/*
* Copyright (c) 2003, 2018, 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 "io_util.h"
#include "jlong.h"
#include "io_util_md.h"
#include "java_io_FileDescriptor.h"
/*******************************************************************/
/* BEGIN JNI ********* BEGIN JNI *********** BEGIN JNI ************/
/*******************************************************************/
/* field id for jint 'fd' in java.io.FileDescriptor */
jfieldID IO_fd_fdID;
/* field id for jlong 'handle' in java.io.FileDescriptor */
jfieldID IO_handle_fdID;
/* field id for jboolean 'append' in java.io.FileDescriptor */
jfieldID IO_append_fdID;
/**************************************************************
* static methods to store field IDs in initializers
*/
JNIEXPORT void JNICALL
Java_java_io_FileDescriptor_initIDs(JNIEnv *env, jclass fdClass) {
CHECK_NULL(IO_fd_fdID = (*env)->GetFieldID(env, fdClass, "fd", "I"));
CHECK_NULL(IO_handle_fdID = (*env)->GetFieldID(env, fdClass, "handle", "J"));
CHECK_NULL(IO_append_fdID = (*env)->GetFieldID(env, fdClass, "append", "Z"));
}
/**************************************************************
* File Descriptor
*/
JNIEXPORT void JNICALL
Java_java_io_FileDescriptor_sync(JNIEnv *env, jobject this) {
FD fd = THIS_FD(this);
if (IO_Sync(fd) == -1) {
JNU_ThrowByName(env, "java/io/SyncFailedException", "sync failed");
}
}
JNIEXPORT jlong JNICALL
Java_java_io_FileDescriptor_getHandle(JNIEnv *env, jclass fdClass, jint fd) {
SET_HANDLE(fd);
}
JNIEXPORT jboolean JNICALL
Java_java_io_FileDescriptor_getAppend(JNIEnv *env, jclass fdClass, jint fd) {
return JNI_FALSE;
}
// instance method close0 for FileDescriptor
JNIEXPORT void JNICALL
Java_java_io_FileDescriptor_close0(JNIEnv *env, jobject this) {
fileDescriptorClose(env, this);
}
JNIEXPORT void JNICALL
Java_java_io_FileCleanable_cleanupClose0(JNIEnv *env, jclass fdClass, jint unused, jlong handle) {
if (handle != -1) {
if (!CloseHandle((HANDLE)handle)) {
JNU_ThrowIOExceptionWithLastError(env, "close failed");
}
}
}