[ecj] Add implementations of a few beans

["Andrew John Hughes" <gnu_andrew@member.fsf.org>]

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The attached patch implements a few of the beans at the native
level in GCJ.

Changelog:

2006-08-26  Andrew John Hughes  <gnu_andrew@member.fsf.org>

	* link.cc:
	Increment loaded classes when printing verbose output.
	* gnu/java/lang/management/natVMMemoryMXBeanImpl.cc:
	Added comments.
	* gnu/java/lang/management/natVMMemoryPoolMXBeanImpl.cc:
	(getMemoryManagerNames(jstring)): Implemented.
	(isValid(jstring)): Implemented.
	* gnu/java/lang/management/natVMClassLoadingMXBeanImpl.cc:
	(getLoadedClassCount()): Implemented.
	(getUnloadedClassCount()): Likewise.
	(isVerbose()): Likewise.
	(setVerbose(jboolean)): Likewise.
	* java/lang/management/natVMManagementFactory.cc:
	(getMemoryPoolNames()): Implemented.
	(getMemoryManagerNames()): Likewise.
	(getGarbageCollectorNames()): Likewise.
	* include/jvm.h:
	Add loaded and unloaded class counts.
	* defineclasses.c:
	Increment loaded classes count.
	* prims.cc:
	Add loaded and unloaded class counts.

-- 
Andrew :-)

Escape the Java Trap with GNU Classpath!
http://www.gnu.org/philosophy/java-trap.html
public class gcj extends Freedom implements Java { ... }

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Index: libjava/link.cc
===================================================================
--- libjava/link.cc	(revision 116257)
+++ libjava/link.cc	(working copy)
@@ -1932,11 +1932,14 @@ _Jv_Linker::wait_for_state (jclass klass
   // Print some debugging info if requested.  Interpreted classes are
   // handled in defineclass, so we only need to handle the two
   // pre-compiled cases here.
-  if (gcj::verbose_class_flag
-      && (klass->state == JV_STATE_COMPILED
+  if ((klass->state == JV_STATE_COMPILED
 	  || klass->state == JV_STATE_PRELOADING)
       && ! _Jv_IsInterpretedClass (klass))
-    print_class_loaded (klass);
+    {
+      if (gcj::verbose_class_flag)
+	print_class_loaded (klass);
+      ++gcj::loadedClasses;
+    }
 
   try
     {
Index: libjava/gnu/java/lang/management/natVMMemoryMXBeanImpl.cc
===================================================================
--- libjava/gnu/java/lang/management/natVMMemoryMXBeanImpl.cc	(revision 116257)
+++ libjava/gnu/java/lang/management/natVMMemoryMXBeanImpl.cc	(working copy)
@@ -1,7 +1,22 @@
+/* Copyright (C) 2006  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+ 
+/**
+ * @author Andrew John Hughes <gnu_andrew@member.fsf.org>
+ * @date Tue 08 Aug 2006 */
+/* 
+ * Status:  Stubbed.
+ */
+
 #include <config.h>
 
-#include <gnu/java/lang/management/VMMemoryMXBeanImpl.h>
 #include <gcj/cni.h>
+#include <gnu/java/lang/management/VMMemoryMXBeanImpl.h>
 #include <java/lang/UnsupportedOperationException.h>
 
 ::java::lang::management::MemoryUsage *
Index: libjava/gnu/java/lang/management/natVMMemoryPoolMXBeanImpl.cc
===================================================================
--- libjava/gnu/java/lang/management/natVMMemoryPoolMXBeanImpl.cc	(revision 116257)
+++ libjava/gnu/java/lang/management/natVMMemoryPoolMXBeanImpl.cc	(working copy)
@@ -1,11 +1,26 @@
+/* Copyright (C) 2006  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+ 
+/**
+ * @author Andrew John Hughes <gnu_andrew@member.fsf.org>
+ * @date Tue 08 Aug 2006 */
+/* Implemented for our sole pool, the heap (we ignore the name input).
+ * Status:  Stubbed.
+ */
+
 #include <config.h>
 
-#include <gnu/java/lang/management/VMMemoryPoolMXBeanImpl.h>
 #include <gcj/cni.h>
+#include <gnu/java/lang/management/VMMemoryPoolMXBeanImpl.h>
 #include <java/lang/UnsupportedOperationException.h>
 
 ::java::lang::management::MemoryUsage *
-gnu::java::lang::management::VMMemoryPoolMXBeanImpl::getCollectionUsage (::java::lang::String *)
+gnu::java::lang::management::VMMemoryPoolMXBeanImpl::getCollectionUsage(jstring n)
 {
   throw new ::java::lang::UnsupportedOperationException (JvNewStringLatin1 ("gnu::java::lang::management::VMMemoryPoolMXBeanImpl::getCollectionUsage (::java::lang::String *) not implemented"));
 }
@@ -26,9 +41,10 @@ gnu::java::lang::management::VMMemoryPoo
 
 
 JArray< ::java::lang::String *> *
-gnu::java::lang::management::VMMemoryPoolMXBeanImpl::getMemoryManagerNames (::java::lang::String *)
+gnu::java::lang::management::VMMemoryPoolMXBeanImpl::getMemoryManagerNames(jstring n)
 {
-  throw new ::java::lang::UnsupportedOperationException (JvNewStringLatin1 ("gnu::java::lang::management::VMMemoryPoolMXBeanImpl::getMemoryManagerNames (::java::lang::String *) not implemented"));
+  return (JArray<jstring>*)
+    JvNewObjectArray(1, &::java::lang::String::class$, JvNewStringLatin1("BoehmGC"));
 }
 
 
@@ -70,7 +86,7 @@ gnu::java::lang::management::VMMemoryPoo
 jboolean
 gnu::java::lang::management::VMMemoryPoolMXBeanImpl::isValid (::java::lang::String *)
 {
-  throw new ::java::lang::UnsupportedOperationException (JvNewStringLatin1 ("gnu::java::lang::management::VMMemoryPoolMXBeanImpl::isValid (::java::lang::String *) not implemented"));
+  return true;
 }
 
 
Index: libjava/gnu/java/lang/management/natVMClassLoadingMXBeanImpl.cc
===================================================================
--- libjava/gnu/java/lang/management/natVMClassLoadingMXBeanImpl.cc	(revision 116257)
+++ libjava/gnu/java/lang/management/natVMClassLoadingMXBeanImpl.cc	(working copy)
@@ -1,32 +1,49 @@
+/* Copyright (C) 2006  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+ 
+/**
+ * @author Andrew John Hughes <gnu_andrew@member.fsf.org>
+ * @date Sun 20 Aug 2006 */
+/* Written using online API docs for JDK 1.5 beta from http://java.sun.com.
+ * Status:  Believed complete and correct.
+ */
+ 
 #include <config.h>
 
+#include <jvm.h>
+
 #include <gnu/java/lang/management/VMClassLoadingMXBeanImpl.h>
-#include <gcj/cni.h>
-#include <java/lang/UnsupportedOperationException.h>
 
 jint
 gnu::java::lang::management::VMClassLoadingMXBeanImpl::getLoadedClassCount ()
 {
-  throw new ::java::lang::UnsupportedOperationException (JvNewStringLatin1 ("gnu::java::lang::management::VMClassLoadingMXBeanImpl::getLoadedClassCount () not implemented"));
+  /* FIXME: We never unload, so this never goes down again */
+  return ::gcj::loadedClasses;
 }
 
 
 jlong
 gnu::java::lang::management::VMClassLoadingMXBeanImpl::getUnloadedClassCount ()
 {
-  throw new ::java::lang::UnsupportedOperationException (JvNewStringLatin1 ("gnu::java::lang::management::VMClassLoadingMXBeanImpl::getUnloadedClassCount () not implemented"));
+  /* FIXME: We never unload, so this always == 0 */
+  return ::gcj::unloadedClasses;
 }
 
 
 jboolean
 gnu::java::lang::management::VMClassLoadingMXBeanImpl::isVerbose ()
 {
-  throw new ::java::lang::UnsupportedOperationException (JvNewStringLatin1 ("gnu::java::lang::management::VMClassLoadingMXBeanImpl::isVerbose () not implemented"));
+  return ::gcj::verbose_class_flag;
 }
 
 
 void
-gnu::java::lang::management::VMClassLoadingMXBeanImpl::setVerbose (jboolean)
+gnu::java::lang::management::VMClassLoadingMXBeanImpl::setVerbose (jboolean b)
 {
-  throw new ::java::lang::UnsupportedOperationException (JvNewStringLatin1 ("gnu::java::lang::management::VMClassLoadingMXBeanImpl::setVerbose (jboolean) not implemented"));
+  ::gcj::verbose_class_flag = b;
 }
Index: libjava/java/lang/management/natVMManagementFactory.cc
===================================================================
--- libjava/java/lang/management/natVMManagementFactory.cc	(revision 116257)
+++ libjava/java/lang/management/natVMManagementFactory.cc	(working copy)
@@ -1,25 +1,44 @@
+/* Copyright (C) 2006  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+ 
+/**
+ * @author Andrew John Hughes <gnu_andrew@member.fsf.org>
+ * @date Tue 08 Aug 2006 */
+/* Implemented for our sole pool, the heap, and our sole memory
+ * manager/garbage collector, Boehm GC.
+ * Status:  Believed complete and correct.
+ */
+
 #include <config.h>
 
-#include <java/lang/management/VMManagementFactory.h>
 #include <gcj/cni.h>
-#include <java/lang/UnsupportedOperationException.h>
+#include <java/lang/String.h>
+#include <java/lang/management/VMManagementFactory.h>
 
 JArray< ::java::lang::String *> *
 java::lang::management::VMManagementFactory::getMemoryPoolNames ()
 {
-  throw new ::java::lang::UnsupportedOperationException (JvNewStringLatin1 ("java::lang::management::VMManagementFactory::getMemoryPoolNames () not implemented"));
+  return (JArray<jstring>*)
+    JvNewObjectArray(1, &java::lang::String::class$, JvNewStringLatin1("Heap"));
 }
 
 
 JArray< ::java::lang::String *> *
 java::lang::management::VMManagementFactory::getMemoryManagerNames ()
 {
-  throw new ::java::lang::UnsupportedOperationException (JvNewStringLatin1 ("java::lang::management::VMManagementFactory::getMemoryManagerNames () not implemented"));
+  return (JArray<jstring>*)
+    JvNewObjectArray(0, &java::lang::String::class$, NULL);
 }
 
 
 JArray< ::java::lang::String *> *
 java::lang::management::VMManagementFactory::getGarbageCollectorNames ()
 {
-  throw new ::java::lang::UnsupportedOperationException (JvNewStringLatin1 ("java::lang::management::VMManagementFactory::getGarbageCollectorNames () not implemented"));
+  return (JArray<jstring>*) 
+    JvNewObjectArray(1, &java::lang::String::class$, JvNewStringLatin1("BoehmGC"));
 }
Index: libjava/include/jvm.h
===================================================================
--- libjava/include/jvm.h	(revision 116257)
+++ libjava/include/jvm.h	(working copy)
@@ -242,6 +242,11 @@ namespace gcj
   /* The VM arguments */
   extern JArray<jstring>* vmArgs;
 
+  // Currently loaded classes
+  extern jint loadedClasses;
+
+  // Unloaded classes
+  extern jlong unloadedClasses;
 }
 
 // This class handles all aspects of class preparation and linking.
Index: libjava/defineclass.cc
===================================================================
--- libjava/defineclass.cc	(revision 116257)
+++ libjava/defineclass.cc	(working copy)
@@ -417,6 +417,7 @@ _Jv_ClassReader::parse ()
   def->state = JV_STATE_READ;
   if (gcj::verbose_class_flag)
     _Jv_Linker::print_class_loaded (def);
+  ++gcj::loadedClasses;
   def->notifyAll ();
 }
 
Index: libjava/prims.cc
===================================================================
--- libjava/prims.cc	(revision 116257)
+++ libjava/prims.cc	(working copy)
@@ -1121,6 +1121,12 @@ namespace gcj
 
   // Arguments passed to the VM
   JArray<jstring>* vmArgs;
+
+  // Currently loaded classes
+  jint loadedClasses = 0;
+
+  // Unloaded classes
+  jlong unloadedClasses = 0;
 }
 
 // We accept all non-standard options accepted by Sun's java command,

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