1 /* src/native/vm/gnuclasspath/gnu_java_lang_management_VMMemoryMXBeanImpl.cpp
3 Copyright (C) 1996-2005, 2006, 2007, 2008
4 CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
6 This file is part of CACAO.
8 This program is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License as
10 published by the Free Software Foundation; either version 2, or (at
11 your option) any later version.
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
32 #include "native/jni.h"
33 #include "native/native.h"
35 #include "native/include/java_lang_management_MemoryUsage.h"
39 #include "native/include/gnu_java_lang_management_VMMemoryMXBeanImpl.h"
42 #include "vm/builtin.h"
43 #include "vm/global.h"
46 #include "vmcore/class.h"
47 #include "vmcore/loader.h" /* XXX only for load_class_bootstrap */
48 #include "vmcore/options.h"
51 // Native functions are exported as C functions.
55 * Class: gnu/java/lang/management/VMMemoryMXBeanImpl
56 * Method: getHeapMemoryUsage
57 * Signature: ()Ljava/lang/management/MemoryUsage;
59 JNIEXPORT java_lang_management_MemoryUsage* JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getHeapMemoryUsage(JNIEnv *env, jclass clazz)
61 classinfo *class_java_lang_management_MemoryUsage;
63 java_lang_management_MemoryUsage *mu;
71 /* XXX optimize me! sometime... */
73 if (!(class_java_lang_management_MemoryUsage = load_class_bootstrap(utf_new_char("java/lang/management/MemoryUsage"))))
76 /* create the object */
78 o = builtin_new(class_java_lang_management_MemoryUsage);
83 /* cast the object to a MemoryUsage object (for debugability) */
85 mu = (java_lang_management_MemoryUsage *) o;
87 /* find initializer */
89 m = class_findmethod(class_java_lang_management_MemoryUsage,
90 utf_init, utf_new_char("(JJJJ)V"));
92 /* initializer not found */
97 /* get values from the VM */
98 /* XXX if we ever support more than one VM, change this */
100 init = opt_heapstartsize;
101 used = gc_get_total_bytes();
102 commited = gc_get_heap_size();
103 maximum = gc_get_max_heap_size();
105 /* call initializer */
107 (void) vm_call_method(m, o, init, used, commited, maximum);
114 * Class: gnu/java/lang/management/VMMemoryMXBeanImpl
115 * Method: getNonHeapMemoryUsage
116 * Signature: ()Ljava/lang/management/MemoryUsage;
118 JNIEXPORT java_lang_management_MemoryUsage* JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getNonHeapMemoryUsage(JNIEnv *env, jclass clazz)
120 log_println("Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getNonHeapMemoryUsage: IMPLEMENT ME!");
127 * Class: gnu/java/lang/management/VMMemoryMXBeanImpl
128 * Method: getObjectPendingFinalizationCount
131 JNIEXPORT int32_t JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getObjectPendingFinalizationCount(JNIEnv *env, jclass clazz)
133 log_println("Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getObjectPendingFinalizationCount: IMPLEMENT ME!");
140 * Class: gnu/java/lang/management/VMMemoryMXBeanImpl
144 JNIEXPORT int32_t JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_isVerbose(JNIEnv *env, jclass clazz)
146 /* return _Jv_jvm->Java_gnu_java_lang_management_VMMemoryMXBeanImpl_verbose; */
148 log_println("Java_gnu_java_lang_management_VMMemoryMXBeanImpl_isVerbose: MOVE TO C++!");
154 * Class: gnu/java/lang/management/VMMemoryMXBeanImpl
158 JNIEXPORT void JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_setVerbose(JNIEnv *env, jclass clazz, int32_t verbose)
160 /* _Jv_jvm->Java_gnu_java_lang_management_VMMemoryMXBeanImpl_verbose = verbose; */
162 log_println("Java_gnu_java_lang_management_VMMemoryMXBeanImpl_setVerbose: MOVE TO C++!");
168 /* native methods implemented by this file ************************************/
170 static JNINativeMethod methods[] = {
171 { (char*) "getHeapMemoryUsage", (char*) "()Ljava/lang/management/MemoryUsage;", (void*) (uintptr_t) &Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getHeapMemoryUsage },
172 { (char*) "getNonHeapMemoryUsage", (char*) "()Ljava/lang/management/MemoryUsage;", (void*) (uintptr_t) &Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getNonHeapMemoryUsage },
173 { (char*) "getObjectPendingFinalizationCount", (char*) "()I", (void*) (uintptr_t) &Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getObjectPendingFinalizationCount },
174 { (char*) "isVerbose", (char*) "()Z", (void*) (uintptr_t) &Java_gnu_java_lang_management_VMMemoryMXBeanImpl_isVerbose },
175 { (char*) "setVerbose", (char*) "(Z)V", (void*) (uintptr_t) &Java_gnu_java_lang_management_VMMemoryMXBeanImpl_setVerbose },
179 /* _Jv_gnu_java_lang_management_VMMemoryMXBeanImpl_init ************************
181 Register native functions.
183 *******************************************************************************/
187 void _Jv_gnu_java_lang_management_VMMemoryMXBeanImpl_init(void)
191 u = utf_new_char("gnu/java/lang/management/VMMemoryMXBeanImpl");
193 native_method_register(u, methods, NATIVE_METHODS_COUNT);
199 * These are local overrides for various environment variables in Emacs.
200 * Please do not remove this and leave it at the end of the file, where
201 * Emacs will automagically detect them.
202 * ---------------------------------------------------------------------
205 * indent-tabs-mode: t
209 * vim:noexpandtab:sw=4:ts=4: