1/*
2 * Copyright (c) 1994, 2000, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26/*
27 *      Link foreign methods.  This first half of this file contains the
28 *      machine independent dynamic linking routines.
29 *      See "BUILD_PLATFORM"/java/lang/linker_md.c to see
30 *      the implementation of this shared dynamic linking
31 *      interface.
32 *
33 *      NOTE - source in this file is POSIX.1 compliant, host
34 *             specific code lives in the platform specific
35 *             code tree.
36 */
37
38#include "jni.h"
39#include "jni_util.h"
40#include "jvm.h"
41
42#include "JNIHelp.h"
43
44#define NATIVE_METHOD(className, functionName, signature) \
45{ #functionName, signature, (void*)(className ## _ ## functionName) }
46
47JNIEXPORT jlong JNICALL
48Runtime_freeMemory(JNIEnv *env, jobject this)
49{
50    return JVM_FreeMemory();
51}
52
53JNIEXPORT jlong JNICALL
54Runtime_totalMemory(JNIEnv *env, jobject this)
55{
56    return JVM_TotalMemory();
57}
58
59JNIEXPORT jlong JNICALL
60Runtime_maxMemory(JNIEnv *env, jobject this)
61{
62    return JVM_MaxMemory();
63}
64
65JNIEXPORT void JNICALL
66Runtime_gc(JNIEnv *env, jobject this)
67{
68    JVM_GC();
69}
70
71JNIEXPORT void JNICALL
72Runtime_nativeExit(JNIEnv *env, jclass this, jint status)
73{
74    JVM_Exit(status);
75}
76
77JNIEXPORT jstring JNICALL
78Runtime_nativeLoad(JNIEnv* env, jclass ignored, jstring javaFilename,
79                   jobject javaLoader, jstring javaLibrarySearchPath)
80{
81    return JVM_NativeLoad(env, javaFilename, javaLoader, javaLibrarySearchPath);
82}
83
84static JNINativeMethod gMethods[] = {
85  NATIVE_METHOD(Runtime, freeMemory, "!()J"),
86  NATIVE_METHOD(Runtime, totalMemory, "!()J"),
87  NATIVE_METHOD(Runtime, maxMemory, "!()J"),
88  NATIVE_METHOD(Runtime, gc, "()V"),
89  NATIVE_METHOD(Runtime, nativeExit, "(I)V"),
90  NATIVE_METHOD(Runtime, nativeLoad,
91                "(Ljava/lang/String;Ljava/lang/ClassLoader;Ljava/lang/String;)"
92                    "Ljava/lang/String;"),
93};
94
95void register_java_lang_Runtime(JNIEnv* env) {
96  jniRegisterNativeMethods(env, "java/lang/Runtime", gMethods, NELEM(gMethods));
97}
98