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7036199: Adding a notification to the implementation of GarbageCollectorMXBeans

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Add a notification to the GarbageCollectorMXBeans

Reviewed-by: acorn, mchung
This commit is contained in:
Frederic Parain 2011-05-12 10:30:11 -07:00
parent d2ab644ad1
commit b38843c8d9
18 changed files with 395 additions and 29 deletions
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29
hotspot/src/share/vm/services/management.cpp
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@ -42,6 +42,7 @@
#include "services/classLoadingService.hpp"
#include "services/heapDumper.hpp"
#include "services/lowMemoryDetector.hpp"
#include "services/gcNotifier.hpp"
#include "services/management.hpp"
#include "services/memoryManager.hpp"
#include "services/memoryPool.hpp"
@ -60,6 +61,8 @@ klassOop Management::_memoryPoolMXBean_klass = NULL;
klassOop Management::_memoryManagerMXBean_klass = NULL;
klassOop Management::_garbageCollectorMXBean_klass = NULL;
klassOop Management::_managementFactory_klass = NULL;
klassOop Management::_garbageCollectorImpl_klass = NULL;
klassOop Management::_gcInfo_klass = NULL;
jmmOptionalSupport Management::_optional_support = {0};
TimeStamp Management::_stamp;
@ -179,6 +182,8 @@ void Management::oops_do(OopClosure* f) {
f->do_oop((oop*) &_memoryManagerMXBean_klass);
f->do_oop((oop*) &_garbageCollectorMXBean_klass);
f->do_oop((oop*) &_managementFactory_klass);
f->do_oop((oop*) &_garbageCollectorImpl_klass);
f->do_oop((oop*) &_gcInfo_klass);
}
klassOop Management::java_lang_management_ThreadInfo_klass(TRAPS) {
@ -230,6 +235,20 @@ klassOop Management::sun_management_ManagementFactory_klass(TRAPS) {
return _managementFactory_klass;
}
klassOop Management::sun_management_GarbageCollectorImpl_klass(TRAPS) {
if (_garbageCollectorImpl_klass == NULL) {
_garbageCollectorImpl_klass = load_and_initialize_klass(vmSymbols::sun_management_GarbageCollectorImpl(), CHECK_NULL);
}
return _garbageCollectorImpl_klass;
}
klassOop Management::com_sun_management_GcInfo_klass(TRAPS) {
if (_gcInfo_klass == NULL) {
_gcInfo_klass = load_and_initialize_klass(vmSymbols::com_sun_management_GcInfo(), CHECK_NULL);
}
return _gcInfo_klass;
}
static void initialize_ThreadInfo_constructor_arguments(JavaCallArguments* args, ThreadSnapshot* snapshot, TRAPS) {
Handle snapshot_thread(THREAD, snapshot->threadObj());
@ -2056,6 +2075,13 @@ JVM_ENTRY(void, jmm_GetLastGCStat(JNIEnv *env, jobject obj, jmmGCStat *gc_stat))
}
JVM_END
JVM_ENTRY(void, jmm_SetGCNotificationEnabled(JNIEnv *env, jobject obj, jboolean enabled))
ResourceMark rm(THREAD);
// Get the GCMemoryManager
GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK);
mgr->set_notification_enabled(enabled?true:false);
JVM_END
// Dump heap - Returns 0 if succeeds.
JVM_ENTRY(jint, jmm_DumpHeap0(JNIEnv *env, jstring outputfile, jboolean live))
#ifndef SERVICES_KERNEL
@ -2122,7 +2148,8 @@ const struct jmmInterface_1_ jmm_interface = {
jmm_FindDeadlockedThreads,
jmm_SetVMGlobal,
NULL,
jmm_DumpThreads
jmm_DumpThreads,
jmm_SetGCNotificationEnabled
};
void* Management::get_jmm_interface(int version) {