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 "java_lang_Runtime.h"
43
44 JNIEXPORT jlong JNICALL
Java_java_lang_Runtime_freeMemory(JNIEnv * env,jobject this)45 Java_java_lang_Runtime_freeMemory(JNIEnv *env, jobject this)
46 {
47 return JVM_FreeMemory();
48 }
49
50 JNIEXPORT jlong JNICALL
Java_java_lang_Runtime_totalMemory(JNIEnv * env,jobject this)51 Java_java_lang_Runtime_totalMemory(JNIEnv *env, jobject this)
52 {
53 return JVM_TotalMemory();
54 }
55
56 JNIEXPORT jlong JNICALL
Java_java_lang_Runtime_maxMemory(JNIEnv * env,jobject this)57 Java_java_lang_Runtime_maxMemory(JNIEnv *env, jobject this)
58 {
59 return JVM_MaxMemory();
60 }
61
62 JNIEXPORT void JNICALL
Java_java_lang_Runtime_gc(JNIEnv * env,jobject this)63 Java_java_lang_Runtime_gc(JNIEnv *env, jobject this)
64 {
65 JVM_GC();
66 }
67
68 JNIEXPORT void JNICALL
Java_java_lang_Runtime_traceInstructions(JNIEnv * env,jobject this,jboolean on)69 Java_java_lang_Runtime_traceInstructions(JNIEnv *env, jobject this, jboolean on)
70 {
71 JVM_TraceInstructions(on);
72 }
73
74 JNIEXPORT void JNICALL
Java_java_lang_Runtime_traceMethodCalls(JNIEnv * env,jobject this,jboolean on)75 Java_java_lang_Runtime_traceMethodCalls(JNIEnv *env, jobject this, jboolean on)
76 {
77 JVM_TraceMethodCalls(on);
78 }
79
80 JNIEXPORT void JNICALL
Java_java_lang_Runtime_runFinalization0(JNIEnv * env,jobject this)81 Java_java_lang_Runtime_runFinalization0(JNIEnv *env, jobject this)
82 {
83 jclass cl;
84 jmethodID mid;
85
86 if ((cl = (*env)->FindClass(env, "java/lang/ref/Finalizer"))
87 && (mid = (*env)->GetStaticMethodID(env, cl,
88 "runFinalization", "()V"))) {
89 (*env)->CallStaticVoidMethod(env, cl, mid);
90 }
91 }
92
93 JNIEXPORT jint JNICALL
Java_java_lang_Runtime_availableProcessors(JNIEnv * env,jobject this)94 Java_java_lang_Runtime_availableProcessors(JNIEnv *env, jobject this)
95 {
96 return JVM_ActiveProcessorCount();
97 }
98