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/native.h"
  37
  38 #include "native/include/java_lang_management_MemoryUsage.h"
  39
  40 #include "native/include/gnu_java_lang_management_VMMemoryMXBeanImpl.h"
  41
  42 #include "vm/builtin.h"
  43 #include "vm/global.h"
  44 #include "vm/vm.h"
  45
  46 #include "vmcore/class.h"
  47 #include "vmcore/loader.h"               /* XXX only for load_class_bootstrap */
  48 #include "vmcore/options.h"
  49
  50
  51 /* native methods implemented by this file ************************************/
  52
  53 static JNINativeMethod methods[] = {
  54         { "getHeapMemoryUsage",                "()Ljava/lang/management/MemoryUsage;", (void *) (ptrint) &Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getHeapMemoryUsage                },
  55         { "getNonHeapMemoryUsage",             "()Ljava/lang/management/MemoryUsage;", (void *) (ptrint) &Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getNonHeapMemoryUsage             },
  56         { "getObjectPendingFinalizationCount", "()I",                                  (void *) (ptrint) &Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getObjectPendingFinalizationCount },
  57         { "isVerbose",                         "()Z",                                  (void *) (ptrint) &Java_gnu_java_lang_management_VMMemoryMXBeanImpl_isVerbose                         },
  58         { "setVerbose",                        "(Z)V",                                 (void *) (ptrint) &Java_gnu_java_lang_management_VMMemoryMXBeanImpl_setVerbose                        },
  59 };
  60
  61
  62 /* _Jv_gnu_java_lang_management_VMMemoryMXBeanImpl_init ************************
  63
  64    Register native functions.
  65
  66 *******************************************************************************/
  67
  68 void _Jv_gnu_java_lang_management_VMMemoryMXBeanImpl_init(void)
  69 {
  70         utf *u;
  71
  72         u = utf_new_char("gnu/java/lang/management/VMMemoryMXBeanImpl");
  73
  74         native_method_register(u, methods, NATIVE_METHODS_COUNT);
  75 }
  76
  77
  78 /*
  79  * Class:     gnu/java/lang/management/VMMemoryMXBeanImpl
  80  * Method:    getHeapMemoryUsage
  81  * Signature: ()Ljava/lang/management/MemoryUsage;
  82  */
  83 JNIEXPORT java_lang_management_MemoryUsage* JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getHeapMemoryUsage(JNIEnv *env, jclass clazz)
  84 {
  85         classinfo                        *class_java_lang_management_MemoryUsage;
  86         java_objectheader                *o;
  87         java_lang_management_MemoryUsage *mu;
  88         methodinfo                       *m;
  89         s8                                init;
  90         s8                                used;
  91         s8                                commited;
  92         s8                                maximum;
  93
  94         /* get the class */
  95         /* XXX optimize me! sometime... */
  96
  97         if (!(class_java_lang_management_MemoryUsage = load_class_bootstrap(utf_new_char("java/lang/management/MemoryUsage"))))
  98                 return false;
  99
 100         /* create the object */
 101
 102         o = builtin_new(class_java_lang_management_MemoryUsage);
 103
 104         if (o == NULL)
 105                 return NULL;
 106
 107         /* cast the object to a MemoryUsage object (for debugability) */
 108
 109         mu = (java_lang_management_MemoryUsage *) o;
 110
 111         /* find initializer */
 112
 113         m = class_findmethod(class_java_lang_management_MemoryUsage,
 114                                                  utf_init, utf_new_char("(JJJJ)V"));
 115
 116         /* initializer not found */
 117
 118         if (m == NULL)
 119                 return NULL;
 120
 121         /* get values from the VM */
 122         /* XXX if we ever support more than one VM, change this */
 123
 124         init     = opt_heapstartsize;
 125         used     = gc_get_total_bytes();
 126         commited = gc_get_heap_size();
 127         maximum  = gc_get_max_heap_size();
 128
 129         /* call initializer */
 130
 131         (void) vm_call_method(m, o, init, used, commited, maximum);
 132
 133         return mu;
 134 }
 135
 136
 137 /*
 138  * Class:     gnu/java/lang/management/VMMemoryMXBeanImpl
 139  * Method:    getNonHeapMemoryUsage
 140  * Signature: ()Ljava/lang/management/MemoryUsage;
 141  */
 142 JNIEXPORT java_lang_management_MemoryUsage* JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getNonHeapMemoryUsage(JNIEnv *env, jclass clazz)
 143 {
 144         log_println("Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getNonHeapMemoryUsage: IMPLEMENT ME!");
 145
 146         return NULL;
 147 }
 148
 149
 150 /*
 151  * Class:     gnu/java/lang/management/VMMemoryMXBeanImpl
 152  * Method:    getObjectPendingFinalizationCount
 153  * Signature: ()I
 154  */
 155 JNIEXPORT s4 JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getObjectPendingFinalizationCount(JNIEnv *env, jclass clazz)
 156 {
 157         log_println("Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getObjectPendingFinalizationCount: IMPLEMENT ME!");
 158
 159         return 0;
 160 }
 161
 162
 163 /*
 164  * Class:     gnu/java/lang/management/VMMemoryMXBeanImpl
 165  * Method:    isVerbose
 166  * Signature: ()Z
 167  */
 168 JNIEXPORT s4 JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_isVerbose(JNIEnv *env, jclass clazz)
 169 {
 170         return _Jv_jvm->Java_gnu_java_lang_management_VMMemoryMXBeanImpl_verbose;
 171 }
 172
 173
 174 /*
 175  * Class:     gnu/java/lang/management/VMMemoryMXBeanImpl
 176  * Method:    setVerbose
 177  * Signature: (Z)V
 178  */
 179 JNIEXPORT void JNICALL Java_gnu_java_lang_management_VMMemoryMXBeanImpl_setVerbose(JNIEnv *env, jclass clazz, s4 verbose)
 180 {
 181         _Jv_jvm->Java_gnu_java_lang_management_VMMemoryMXBeanImpl_verbose = verbose;
 182 }
 183
 184
 185 /*
 186  * These are local overrides for various environment variables in Emacs.
 187  * Please do not remove this and leave it at the end of the file, where
 188  * Emacs will automagically detect them.
 189  * ---------------------------------------------------------------------
 190  * Local variables:
 191  * mode: c
 192  * indent-tabs-mode: t
 193  * c-basic-offset: 4
 194  * tab-width: 4
 195  * End:
 196  * vim:noexpandtab:sw=4:ts=4:
 197  */