0N/A/*
2362N/A * Copyright (c) 1997, 2007, Oracle and/or its affiliates. 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
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle 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 *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A#include "jni.h"
0N/A#include "jni_util.h"
0N/A#include "jlong.h"
0N/A#include "io_util.h"
0N/A
0N/A#include "jvm.h"
0N/A
0N/A#include "java_io_FileInputStream.h"
0N/A
0N/A#include <fcntl.h>
0N/A#include <limits.h>
0N/A
0N/A#include "io_util_md.h"
0N/A
0N/A/*******************************************************************/
0N/A/* BEGIN JNI ********* BEGIN JNI *********** BEGIN JNI ************/
0N/A/*******************************************************************/
0N/A
0N/AjfieldID fis_fd; /* id for jobject 'fd' in java.io.FileInputStream */
0N/A
0N/A/**************************************************************
0N/A * static methods to store field ID's in initializers
0N/A */
0N/A
0N/AJNIEXPORT void JNICALL
0N/AJava_java_io_FileInputStream_initIDs(JNIEnv *env, jclass fdClass) {
0N/A fis_fd = (*env)->GetFieldID(env, fdClass, "fd", "Ljava/io/FileDescriptor;");
0N/A}
0N/A
0N/A/**************************************************************
0N/A * Input stream
0N/A */
0N/A
0N/AJNIEXPORT void JNICALL
0N/AJava_java_io_FileInputStream_open(JNIEnv *env, jobject this, jstring path) {
0N/A fileOpen(env, this, path, fis_fd, O_RDONLY);
0N/A}
0N/A
0N/AJNIEXPORT jint JNICALL
5503N/AJava_java_io_FileInputStream_read0(JNIEnv *env, jobject this) {
0N/A return readSingle(env, this, fis_fd);
0N/A}
0N/A
0N/AJNIEXPORT jint JNICALL
0N/AJava_java_io_FileInputStream_readBytes(JNIEnv *env, jobject this,
0N/A jbyteArray bytes, jint off, jint len) {
0N/A return readBytes(env, this, bytes, off, len, fis_fd);
0N/A}
0N/A
0N/AJNIEXPORT jlong JNICALL
0N/AJava_java_io_FileInputStream_skip(JNIEnv *env, jobject this, jlong toSkip) {
0N/A jlong cur = jlong_zero;
0N/A jlong end = jlong_zero;
0N/A FD fd = GET_FD(this, fis_fd);
0N/A if (fd == -1) {
0N/A JNU_ThrowIOException (env, "Stream Closed");
0N/A return 0;
0N/A }
0N/A if ((cur = IO_Lseek(fd, (jlong)0, (jint)SEEK_CUR)) == -1) {
0N/A JNU_ThrowIOExceptionWithLastError(env, "Seek error");
0N/A } else if ((end = IO_Lseek(fd, toSkip, (jint)SEEK_CUR)) == -1) {
0N/A JNU_ThrowIOExceptionWithLastError(env, "Seek error");
0N/A }
0N/A return (end - cur);
0N/A}
0N/A
0N/AJNIEXPORT jint JNICALL
0N/AJava_java_io_FileInputStream_available(JNIEnv *env, jobject this) {
0N/A jlong ret;
0N/A FD fd = GET_FD(this, fis_fd);
0N/A if (fd == -1) {
0N/A JNU_ThrowIOException (env, "Stream Closed");
0N/A return 0;
0N/A }
0N/A if (IO_Available(fd, &ret)) {
0N/A if (ret > INT_MAX) {
0N/A ret = (jlong) INT_MAX;
0N/A }
0N/A return jlong_to_jint(ret);
0N/A }
0N/A JNU_ThrowIOExceptionWithLastError(env, NULL);
0N/A return 0;
0N/A}