src/native/vm/gnu/gnu_java_lang_management_VMMemoryMXBeanImpl.c

   1 /* src/native/vm/gnu/gnu_java_lang_management_VMMemoryMXBeanImpl.c
   2
   3    Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
   4    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
   5    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
   6    J. Wenninger, Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  23    02110-1301, USA.
  24
  25    $Id: VMFrame.c 4996 2006-05-31 13:53:16Z motse $
  26
  27 */
  28
  29
  30 #include "config.h"
  31 #include "vm/types.h"
  32
  33 #include "mm/gc-common.h"
  34
  35 #include "native/jni.h"
  36 #include "native/include/java_lang_management_MemoryUsage.h"
  37
  38 #include "vm/builtin.h"
  39 #include "vm/global.h"
  40 #include "vm/vm.h"
  41
  42 #include "vmcore/class.h"
  43 #include "vmcore/loader.h"               /* XXX only for load_class_bootstrap */
  44 #include "vmcore/options.h"
  45
  46
  47 /*
  48  * Class:     gnu/java/lang/management/VMMemoryMXBeanImpl
  49  * Method:    getHeapMemoryUsage
  50  * Signature: ()Ljava/lang/management/MemoryUsage;
  51  */
  52 JNIEXPORT java_lang_management_MemoryUsage* JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getHeapMemoryUsage(JNIEnv *env, jclass clazz)
  53 {
  54         classinfo                        *class_java_lang_management_MemoryUsage;
  55         java_objectheader                *o;
  56         java_lang_management_MemoryUsage *mu;
  57         methodinfo                       *m;
  58         s8                                init;
  59         s8                                used;
  60         s8                                commited;
  61         s8                                maximum;
  62
  63         /* get the class */
  64         /* XXX optimize me! sometime... */
  65
  66         if (!(class_java_lang_management_MemoryUsage = load_class_bootstrap(utf_new_char("java/lang/management/MemoryUsage"))))
  67                 return false;
  68
  69         /* create the object */
  70
  71         o = builtin_new(class_java_lang_management_MemoryUsage);
  72
  73         if (o == NULL)
  74                 return NULL;
  75
  76         /* cast the object to a MemoryUsage object (for debugability) */
  77
  78         mu = (java_lang_management_MemoryUsage *) o;
  79
  80         /* find initializer */
  81
  82         m = class_findmethod(class_java_lang_management_MemoryUsage,
  83                                                  utf_init, utf_new_char("(JJJJ)V"));
  84
  85         /* initializer not found */
  86
  87         if (m == NULL)
  88                 return NULL;
  89
  90         /* get values from the VM */
  91         /* XXX if we ever support more than one VM, change this */
  92
  93         init     = opt_heapstartsize;
  94         used     = gc_get_total_bytes();
  95         commited = gc_get_heap_size();
  96         maximum  = gc_get_max_heap_size();
  97
  98         /* call initializer */
  99
 100         (void) vm_call_method(m, o, init, used, commited, maximum);
 101
 102         return mu;
 103 }
 104
 105
 106 /*
 107  * Class:     gnu/java/lang/management/VMMemoryMXBeanImpl
 108  * Method:    getNonHeapMemoryUsage
 109  * Signature: ()Ljava/lang/management/MemoryUsage;
 110  */
 111 JNIEXPORT java_lang_management_MemoryUsage* JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getNonHeapMemoryUsage(JNIEnv *env, jclass clazz)
 112 {
 113         log_println("Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getNonHeapMemoryUsage: IMPLEMENT ME!");
 114
 115         return NULL;
 116 }
 117
 118
 119 /*
 120  * Class:     gnu/java/lang/management/VMMemoryMXBeanImpl
 121  * Method:    getObjectPendingFinalizationCount
 122  * Signature: ()I
 123  */
 124 JNIEXPORT s4 JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getObjectPendingFinalizationCount(JNIEnv *env, jclass clazz)
 125 {
 126         log_println("Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getObjectPendingFinalizationCount: IMPLEMENT ME!");
 127
 128         return 0;
 129 }
 130
 131
 132 /*
 133  * Class:     gnu/java/lang/management/VMMemoryMXBeanImpl
 134  * Method:    isVerbose
 135  * Signature: ()Z
 136  */
 137 JNIEXPORT s4 JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_isVerbose(JNIEnv *env, jclass clazz)
 138 {
 139         return _Jv_jvm->Java_gnu_java_lang_management_VMMemoryMXBeanImpl_verbose;
 140 }
 141
 142
 143 /*
 144  * Class:     gnu/java/lang/management/VMMemoryMXBeanImpl
 145  * Method:    setVerbose
 146  * Signature: (Z)V
 147  */
 148 JNIEXPORT void JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_setVerbose(JNIEnv *env, jclass clazz, s4 verbose)
 149 {
 150         _Jv_jvm->Java_gnu_java_lang_management_VMMemoryMXBeanImpl_verbose = verbose;
 151 }
 152
 153
 154 /*
 155  * These are local overrides for various environment variables in Emacs.
 156  * Please do not remove this and leave it at the end of the file, where
 157  * Emacs will automagically detect them.
 158  * ---------------------------------------------------------------------
 159  * Local variables:
 160  * mode: c
 161  * indent-tabs-mode: t
 162  * c-basic-offset: 4
 163  * tab-width: 4
 164  * End:
 165  * vim:noexpandtab:sw=4:ts=4:
 166  */