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 <nativehelper/JNIHelp.h>
43
44 #include "nativehelper/jni_macros.h"
45
46 JNIEXPORT jlong JNICALL
Runtime_freeMemory(JNIEnv * env,jobject this)47 Runtime_freeMemory(JNIEnv *env, jobject this)
48 {
49 return JVM_FreeMemory();
50 }
51
52 JNIEXPORT jlong JNICALL
Runtime_totalMemory(JNIEnv * env,jobject this)53 Runtime_totalMemory(JNIEnv *env, jobject this)
54 {
55 return JVM_TotalMemory();
56 }
57
58 JNIEXPORT jlong JNICALL
Runtime_maxMemory(JNIEnv * env,jobject this)59 Runtime_maxMemory(JNIEnv *env, jobject this)
60 {
61 return JVM_MaxMemory();
62 }
63
64 JNIEXPORT void JNICALL
Runtime_nativeGc(JNIEnv * env,jobject this)65 Runtime_nativeGc(JNIEnv *env, jobject this)
66 {
67 JVM_GC();
68 }
69
70 JNIEXPORT void JNICALL
Runtime_nativeExit(JNIEnv * env,jclass this,jint status)71 Runtime_nativeExit(JNIEnv *env, jclass this, jint status)
72 {
73 JVM_Exit(status);
74 }
75
76 JNIEXPORT jstring JNICALL
Runtime_nativeLoad(JNIEnv * env,jclass ignored,jstring javaFilename,jobject javaLoader,jclass caller)77 Runtime_nativeLoad(JNIEnv* env, jclass ignored, jstring javaFilename,
78 jobject javaLoader, jclass caller)
79 {
80 return JVM_NativeLoad(env, javaFilename, javaLoader, caller);
81 }
82
83 static JNINativeMethod gMethods[] = {
84 FAST_NATIVE_METHOD(Runtime, freeMemory, "()J"),
85 FAST_NATIVE_METHOD(Runtime, totalMemory, "()J"),
86 FAST_NATIVE_METHOD(Runtime, maxMemory, "()J"),
87 NATIVE_METHOD(Runtime, nativeGc, "()V"),
88 NATIVE_METHOD(Runtime, nativeExit, "(I)V"),
89 NATIVE_METHOD(Runtime, nativeLoad,
90 "(Ljava/lang/String;Ljava/lang/ClassLoader;Ljava/lang/Class;)"
91 "Ljava/lang/String;"),
92 };
93
register_java_lang_Runtime(JNIEnv * env)94 void register_java_lang_Runtime(JNIEnv* env) {
95 jniRegisterNativeMethods(env, "java/lang/Runtime", gMethods, NELEM(gMethods));
96 }
97