83 GCMemoryManager* MemoryManager::get_cms_memory_manager() {
84 return (GCMemoryManager*) new CMSMemoryManager();
85 }
86
87 GCMemoryManager* MemoryManager::get_psScavenge_memory_manager() {
88 return (GCMemoryManager*) new PSScavengeMemoryManager();
89 }
90
91 GCMemoryManager* MemoryManager::get_psMarkSweep_memory_manager() {
92 return (GCMemoryManager*) new PSMarkSweepMemoryManager();
93 }
94
95 GCMemoryManager* MemoryManager::get_g1YoungGen_memory_manager() {
96 return (GCMemoryManager*) new G1YoungGenMemoryManager();
97 }
98
99 GCMemoryManager* MemoryManager::get_g1OldGen_memory_manager() {
100 return (GCMemoryManager*) new G1OldGenMemoryManager();
101 }
102
103 instanceOop MemoryManager::get_memory_manager_instance(TRAPS) {
104 // Must do an acquire so as to force ordering of subsequent
105 // loads from anything _memory_mgr_obj points to or implies.
106 instanceOop mgr_obj = (instanceOop)OrderAccess::load_ptr_acquire(&_memory_mgr_obj);
107 if (mgr_obj == NULL) {
108 // It's ok for more than one thread to execute the code up to the locked region.
109 // Extra manager instances will just be gc'ed.
110 Klass* k = Management::sun_management_ManagementFactory_klass(CHECK_0);
111 instanceKlassHandle ik(THREAD, k);
112
113 Handle mgr_name = java_lang_String::create_from_str(name(), CHECK_0);
114
115 JavaValue result(T_OBJECT);
116 JavaCallArguments args;
117 args.push_oop(mgr_name); // Argument 1
118
119 Symbol* method_name = NULL;
120 Symbol* signature = NULL;
121 if (is_gc_memory_manager()) {
122 method_name = vmSymbols::createGarbageCollector_name();
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83 GCMemoryManager* MemoryManager::get_cms_memory_manager() {
84 return (GCMemoryManager*) new CMSMemoryManager();
85 }
86
87 GCMemoryManager* MemoryManager::get_psScavenge_memory_manager() {
88 return (GCMemoryManager*) new PSScavengeMemoryManager();
89 }
90
91 GCMemoryManager* MemoryManager::get_psMarkSweep_memory_manager() {
92 return (GCMemoryManager*) new PSMarkSweepMemoryManager();
93 }
94
95 GCMemoryManager* MemoryManager::get_g1YoungGen_memory_manager() {
96 return (GCMemoryManager*) new G1YoungGenMemoryManager();
97 }
98
99 GCMemoryManager* MemoryManager::get_g1OldGen_memory_manager() {
100 return (GCMemoryManager*) new G1OldGenMemoryManager();
101 }
102
103 GCMemoryManager* MemoryManager::get_shenandoah_cycles_memory_manager() {
104 return (GCMemoryManager*) new ShenandoahCyclesMemoryManager();
105 }
106
107 GCMemoryManager* MemoryManager::get_shenandoah_pauses_memory_manager() {
108 return (GCMemoryManager*) new ShenandoahPausesMemoryManager();
109 }
110
111 instanceOop MemoryManager::get_memory_manager_instance(TRAPS) {
112 // Must do an acquire so as to force ordering of subsequent
113 // loads from anything _memory_mgr_obj points to or implies.
114 instanceOop mgr_obj = (instanceOop)OrderAccess::load_ptr_acquire(&_memory_mgr_obj);
115 if (mgr_obj == NULL) {
116 // It's ok for more than one thread to execute the code up to the locked region.
117 // Extra manager instances will just be gc'ed.
118 Klass* k = Management::sun_management_ManagementFactory_klass(CHECK_0);
119 instanceKlassHandle ik(THREAD, k);
120
121 Handle mgr_name = java_lang_String::create_from_str(name(), CHECK_0);
122
123 JavaValue result(T_OBJECT);
124 JavaCallArguments args;
125 args.push_oop(mgr_name); // Argument 1
126
127 Symbol* method_name = NULL;
128 Symbol* signature = NULL;
129 if (is_gc_memory_manager()) {
130 method_name = vmSymbols::createGarbageCollector_name();
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