Quellcode-Bibliothek

^© Kompilation durch diese Firma

[Weder Korrektheit noch Funktionsfähigkeit der Software werden zugesichert.]

Datei: Sprache: C

/*
*  Copyright (c) 2019, 2020, 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.
*
*  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 <stdlib.h>
#include <stdio.h>
#include <stdint.h>

JNIEXPORT jbyte JNICALL
Java_TestNative_getByteRaw(JNIEnv *env, jclass cls, jlong addr, jint index) {
    jbyte *arr = (jbyte*)(uintptr_t)addr;
    return arr[index];
}

JNIEXPORT jbyte JNICALL
Java_TestNative_getByteBuffer(JNIEnv *env, jclass cls, jobject buf, jint index) {
    jlong addr = (jlong)(uintptr_t)(*env)->GetDirectBufferAddress(env, buf);
    return Java_TestNative_getByteRaw(env, cls, addr, index);
}

JNIEXPORT jchar JNICALL
Java_TestNative_getCharRaw(JNIEnv *env, jclass cls, jlong addr, jint index) {
    jchar *arr = (jchar*)(uintptr_t)addr;
    return arr[index];
}

JNIEXPORT jchar JNICALL
Java_TestNative_getCharBuffer(JNIEnv *env, jclass cls, jobject buf, jint index) {
    jlong addr = (jlong)(uintptr_t)(*env)->GetDirectBufferAddress(env, buf);
    return Java_TestNative_getCharRaw(env, cls, addr, index);
}

JNIEXPORT jshort JNICALL
Java_TestNative_getShortRaw(JNIEnv *env, jclass cls, jlong addr, jint index) {
    jshort *arr = (jshort*)(uintptr_t)addr;
    return arr[index];
}

JNIEXPORT jshort JNICALL
Java_TestNative_getShortBuffer(JNIEnv *env, jclass cls, jobject buf, jint index) {
    jlong addr = (jlong)(uintptr_t)(*env)->GetDirectBufferAddress(env, buf);
    return Java_TestNative_getShortRaw(env, cls, addr, index);
}

JNIEXPORT jint JNICALL
Java_TestNative_getIntRaw(JNIEnv *env, jclass cls, jlong addr, jint index) {
    jint *arr = (jint*)(uintptr_t)addr;
    return arr[index];
}

JNIEXPORT jint JNICALL
Java_TestNative_getIntBuffer(JNIEnv *env, jclass cls, jobject buf, jint index) {
    jlong addr = (jlong)(uintptr_t)(*env)->GetDirectBufferAddress(env, buf);
    return Java_TestNative_getIntRaw(env, cls, addr, index);
}

JNIEXPORT jfloat JNICALL
Java_TestNative_getFloatRaw(JNIEnv *env, jclass cls, jlong addr, jint index) {
    jfloat *arr = (jfloat*)(uintptr_t)addr;
    return arr[index];
}

JNIEXPORT jfloat JNICALL
Java_TestNative_getFloatBuffer(JNIEnv *env, jclass cls, jobject buf, jint index) {
    jlong addr = (jlong)(uintptr_t)(*env)->GetDirectBufferAddress(env, buf);
    return Java_TestNative_getFloatRaw(env, cls, addr, index);
}

JNIEXPORT jlong JNICALL
Java_TestNative_getLongRaw(JNIEnv *env, jclass cls, jlong addr, jint index) {
    jlong *arr = (jlong*)(uintptr_t)addr;
    return arr[index];
}

JNIEXPORT jlong JNICALL
Java_TestNative_getLongBuffer(JNIEnv *env, jclass cls, jobject buf, jint index) {
    jlong addr = (jlong)(uintptr_t)(*env)->GetDirectBufferAddress(env, buf);
    return Java_TestNative_getLongRaw(env, cls, addr, index);
}

JNIEXPORT jdouble JNICALL
Java_TestNative_getDoubleRaw(JNIEnv *env, jclass cls, jlong addr, jint index) {
    jdouble *arr = (jdouble*)(uintptr_t)addr;
    return arr[index];
}

JNIEXPORT jdouble JNICALL
Java_TestNative_getDoubleBuffer(JNIEnv *env, jclass cls, jobject buf, jint index) {
    jlong addr = (jlong)(uintptr_t)(*env)->GetDirectBufferAddress(env, buf);
    return Java_TestNative_getDoubleRaw(env, cls, addr, index);
}

JNIEXPORT jlong JNICALL
Java_TestNative_getCapacity(JNIEnv *env, jclass cls, jobject buf) {
    return (*env)->GetDirectBufferCapacity(env, buf);
}

¤ Dauer der Verarbeitung: 0.22 Sekunden (vorverarbeitet) ¤

Download des Quellennavigators
Download des sprechenden Kalenders
in der Quellcodebibliothek suchen

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.