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