Mercurial > hg > truffle
annotate src/share/vm/services/management.cpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | d2a62e0f25eb |
| children | 6af8f3562069 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1326
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1326
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1326
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "compiler/compileBroker.hpp" | |
| 28 #include "memory/iterator.hpp" | |
| 29 #include "memory/oopFactory.hpp" | |
| 30 #include "memory/resourceArea.hpp" | |
| 31 #include "oops/klass.hpp" | |
| 32 #include "oops/objArrayKlass.hpp" | |
| 33 #include "oops/oop.inline.hpp" | |
| 34 #include "runtime/arguments.hpp" | |
|
4715
6c995c08526c
7122880: Extend vendor-specific command interface to include manageable switches
phh
parents:
4133
diff
changeset
|
35 #include "runtime/globals.hpp" |
| 1972 | 36 #include "runtime/handles.inline.hpp" |
| 37 #include "runtime/interfaceSupport.hpp" | |
| 38 #include "runtime/javaCalls.hpp" | |
| 39 #include "runtime/jniHandles.hpp" | |
| 40 #include "runtime/os.hpp" | |
|
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
41 #include "runtime/serviceThread.hpp" |
| 1972 | 42 #include "services/classLoadingService.hpp" |
| 4133 | 43 #include "services/diagnosticCommand.hpp" |
| 44 #include "services/diagnosticFramework.hpp" | |
| 1972 | 45 #include "services/heapDumper.hpp" |
| 4133 | 46 #include "services/jmm.h" |
| 1972 | 47 #include "services/lowMemoryDetector.hpp" |
|
3356
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
48 #include "services/gcNotifier.hpp" |
| 6197 | 49 #include "services/nmtDCmd.hpp" |
| 1972 | 50 #include "services/management.hpp" |
| 51 #include "services/memoryManager.hpp" | |
| 52 #include "services/memoryPool.hpp" | |
| 53 #include "services/memoryService.hpp" | |
| 54 #include "services/runtimeService.hpp" | |
| 55 #include "services/threadService.hpp" | |
| 0 | 56 |
| 57 PerfVariable* Management::_begin_vm_creation_time = NULL; | |
| 58 PerfVariable* Management::_end_vm_creation_time = NULL; | |
| 59 PerfVariable* Management::_vm_init_done_time = NULL; | |
| 60 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
61 Klass* Management::_sensor_klass = NULL; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
62 Klass* Management::_threadInfo_klass = NULL; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
63 Klass* Management::_memoryUsage_klass = NULL; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
64 Klass* Management::_memoryPoolMXBean_klass = NULL; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
65 Klass* Management::_memoryManagerMXBean_klass = NULL; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
66 Klass* Management::_garbageCollectorMXBean_klass = NULL; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
67 Klass* Management::_managementFactory_klass = NULL; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
68 Klass* Management::_garbageCollectorImpl_klass = NULL; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
69 Klass* Management::_gcInfo_klass = NULL; |
| 0 | 70 |
| 71 jmmOptionalSupport Management::_optional_support = {0}; | |
| 72 TimeStamp Management::_stamp; | |
| 73 | |
| 74 void management_init() { | |
| 75 Management::init(); | |
| 76 ThreadService::init(); | |
| 77 RuntimeService::init(); | |
| 78 ClassLoadingService::init(); | |
| 79 } | |
| 80 | |
| 81 void Management::init() { | |
| 82 EXCEPTION_MARK; | |
| 83 | |
| 84 // These counters are for java.lang.management API support. | |
| 85 // They are created even if -XX:-UsePerfData is set and in | |
| 86 // that case, they will be allocated on C heap. | |
| 87 | |
| 88 _begin_vm_creation_time = | |
| 89 PerfDataManager::create_variable(SUN_RT, "createVmBeginTime", | |
| 90 PerfData::U_None, CHECK); | |
| 91 | |
| 92 _end_vm_creation_time = | |
| 93 PerfDataManager::create_variable(SUN_RT, "createVmEndTime", | |
| 94 PerfData::U_None, CHECK); | |
| 95 | |
| 96 _vm_init_done_time = | |
| 97 PerfDataManager::create_variable(SUN_RT, "vmInitDoneTime", | |
| 98 PerfData::U_None, CHECK); | |
| 99 | |
| 100 // Initialize optional support | |
| 101 _optional_support.isLowMemoryDetectionSupported = 1; | |
| 102 _optional_support.isCompilationTimeMonitoringSupported = 1; | |
| 103 _optional_support.isThreadContentionMonitoringSupported = 1; | |
| 104 | |
| 105 if (os::is_thread_cpu_time_supported()) { | |
| 106 _optional_support.isCurrentThreadCpuTimeSupported = 1; | |
| 107 _optional_support.isOtherThreadCpuTimeSupported = 1; | |
| 108 } else { | |
| 109 _optional_support.isCurrentThreadCpuTimeSupported = 0; | |
| 110 _optional_support.isOtherThreadCpuTimeSupported = 0; | |
| 111 } | |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
112 |
| 0 | 113 _optional_support.isBootClassPathSupported = 1; |
| 114 _optional_support.isObjectMonitorUsageSupported = 1; | |
| 115 #ifndef SERVICES_KERNEL | |
| 116 // This depends on the heap inspector | |
| 117 _optional_support.isSynchronizerUsageSupported = 1; | |
| 118 #endif // SERVICES_KERNEL | |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
119 _optional_support.isThreadAllocatedMemorySupported = 1; |
| 4133 | 120 |
| 4773 | 121 // Registration of the diagnostic commands |
|
4851
a42c07c38c47
7132515: Add dcmd to manage UnlockingCommercialFeature flag
dsamersoff
parents:
4844
diff
changeset
|
122 DCmdRegistrant::register_dcmds(); |
|
a42c07c38c47
7132515: Add dcmd to manage UnlockingCommercialFeature flag
dsamersoff
parents:
4844
diff
changeset
|
123 DCmdRegistrant::register_dcmds_ext(); |
| 6197 | 124 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<NMTDCmd>(true, false)); |
| 0 | 125 } |
| 126 | |
| 127 void Management::initialize(TRAPS) { | |
|
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
128 // Start the service thread |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
129 ServiceThread::initialize(); |
| 0 | 130 |
| 131 if (ManagementServer) { | |
| 132 ResourceMark rm(THREAD); | |
| 133 HandleMark hm(THREAD); | |
| 134 | |
| 135 // Load and initialize the sun.management.Agent class | |
| 136 // invoke startAgent method to start the management server | |
| 137 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
138 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), |
| 0 | 139 loader, |
| 140 Handle(), | |
| 141 true, | |
| 142 CHECK); | |
| 143 instanceKlassHandle ik (THREAD, k); | |
| 144 | |
| 145 JavaValue result(T_VOID); | |
| 146 JavaCalls::call_static(&result, | |
| 147 ik, | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2100
diff
changeset
|
148 vmSymbols::startAgent_name(), |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2100
diff
changeset
|
149 vmSymbols::void_method_signature(), |
| 0 | 150 CHECK); |
| 151 } | |
| 152 } | |
| 153 | |
| 154 void Management::get_optional_support(jmmOptionalSupport* support) { | |
| 155 memcpy(support, &_optional_support, sizeof(jmmOptionalSupport)); | |
| 156 } | |
| 157 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
158 Klass* Management::load_and_initialize_klass(Symbol* sh, TRAPS) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
159 Klass* k = SystemDictionary::resolve_or_fail(sh, true, CHECK_NULL); |
| 0 | 160 instanceKlassHandle ik (THREAD, k); |
| 161 if (ik->should_be_initialized()) { | |
| 162 ik->initialize(CHECK_NULL); | |
| 163 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
164 // If these classes change to not be owned by the boot loader, they need |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
165 // to be walked to keep their class loader alive in oops_do. |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
166 assert(ik->class_loader() == NULL, "need to follow in oops_do"); |
| 0 | 167 return ik(); |
| 168 } | |
| 169 | |
| 170 void Management::record_vm_startup_time(jlong begin, jlong duration) { | |
| 171 // if the performance counter is not initialized, | |
| 172 // then vm initialization failed; simply return. | |
| 173 if (_begin_vm_creation_time == NULL) return; | |
| 174 | |
| 175 _begin_vm_creation_time->set_value(begin); | |
| 176 _end_vm_creation_time->set_value(begin + duration); | |
| 177 PerfMemory::set_accessible(true); | |
| 178 } | |
| 179 | |
| 180 jlong Management::timestamp() { | |
| 181 TimeStamp t; | |
| 182 t.update(); | |
| 183 return t.ticks() - _stamp.ticks(); | |
| 184 } | |
| 185 | |
| 186 void Management::oops_do(OopClosure* f) { | |
| 187 MemoryService::oops_do(f); | |
| 188 ThreadService::oops_do(f); | |
| 189 } | |
| 190 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
191 Klass* Management::java_lang_management_ThreadInfo_klass(TRAPS) { |
| 0 | 192 if (_threadInfo_klass == NULL) { |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2100
diff
changeset
|
193 _threadInfo_klass = load_and_initialize_klass(vmSymbols::java_lang_management_ThreadInfo(), CHECK_NULL); |
| 0 | 194 } |
| 195 return _threadInfo_klass; | |
| 196 } | |
| 197 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
198 Klass* Management::java_lang_management_MemoryUsage_klass(TRAPS) { |
| 0 | 199 if (_memoryUsage_klass == NULL) { |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2100
diff
changeset
|
200 _memoryUsage_klass = load_and_initialize_klass(vmSymbols::java_lang_management_MemoryUsage(), CHECK_NULL); |
| 0 | 201 } |
| 202 return _memoryUsage_klass; | |
| 203 } | |
| 204 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
205 Klass* Management::java_lang_management_MemoryPoolMXBean_klass(TRAPS) { |
| 0 | 206 if (_memoryPoolMXBean_klass == NULL) { |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2100
diff
changeset
|
207 _memoryPoolMXBean_klass = load_and_initialize_klass(vmSymbols::java_lang_management_MemoryPoolMXBean(), CHECK_NULL); |
| 0 | 208 } |
| 209 return _memoryPoolMXBean_klass; | |
| 210 } | |
| 211 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
212 Klass* Management::java_lang_management_MemoryManagerMXBean_klass(TRAPS) { |
| 0 | 213 if (_memoryManagerMXBean_klass == NULL) { |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2100
diff
changeset
|
214 _memoryManagerMXBean_klass = load_and_initialize_klass(vmSymbols::java_lang_management_MemoryManagerMXBean(), CHECK_NULL); |
| 0 | 215 } |
| 216 return _memoryManagerMXBean_klass; | |
| 217 } | |
| 218 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
219 Klass* Management::java_lang_management_GarbageCollectorMXBean_klass(TRAPS) { |
| 0 | 220 if (_garbageCollectorMXBean_klass == NULL) { |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2100
diff
changeset
|
221 _garbageCollectorMXBean_klass = load_and_initialize_klass(vmSymbols::java_lang_management_GarbageCollectorMXBean(), CHECK_NULL); |
| 0 | 222 } |
| 223 return _garbageCollectorMXBean_klass; | |
| 224 } | |
| 225 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
226 Klass* Management::sun_management_Sensor_klass(TRAPS) { |
| 0 | 227 if (_sensor_klass == NULL) { |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2100
diff
changeset
|
228 _sensor_klass = load_and_initialize_klass(vmSymbols::sun_management_Sensor(), CHECK_NULL); |
| 0 | 229 } |
| 230 return _sensor_klass; | |
| 231 } | |
| 232 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
233 Klass* Management::sun_management_ManagementFactory_klass(TRAPS) { |
| 0 | 234 if (_managementFactory_klass == NULL) { |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2100
diff
changeset
|
235 _managementFactory_klass = load_and_initialize_klass(vmSymbols::sun_management_ManagementFactory(), CHECK_NULL); |
| 0 | 236 } |
| 237 return _managementFactory_klass; | |
| 238 } | |
| 239 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
240 Klass* Management::sun_management_GarbageCollectorImpl_klass(TRAPS) { |
|
3356
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
241 if (_garbageCollectorImpl_klass == NULL) { |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
242 _garbageCollectorImpl_klass = load_and_initialize_klass(vmSymbols::sun_management_GarbageCollectorImpl(), CHECK_NULL); |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
243 } |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
244 return _garbageCollectorImpl_klass; |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
245 } |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
246 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
247 Klass* Management::com_sun_management_GcInfo_klass(TRAPS) { |
|
3356
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
248 if (_gcInfo_klass == NULL) { |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
249 _gcInfo_klass = load_and_initialize_klass(vmSymbols::com_sun_management_GcInfo(), CHECK_NULL); |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
250 } |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
251 return _gcInfo_klass; |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
252 } |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
253 |
| 0 | 254 static void initialize_ThreadInfo_constructor_arguments(JavaCallArguments* args, ThreadSnapshot* snapshot, TRAPS) { |
| 255 Handle snapshot_thread(THREAD, snapshot->threadObj()); | |
| 256 | |
| 257 jlong contended_time; | |
| 258 jlong waited_time; | |
| 259 if (ThreadService::is_thread_monitoring_contention()) { | |
| 260 contended_time = Management::ticks_to_ms(snapshot->contended_enter_ticks()); | |
| 261 waited_time = Management::ticks_to_ms(snapshot->monitor_wait_ticks() + snapshot->sleep_ticks()); | |
| 262 } else { | |
| 263 // set them to -1 if thread contention monitoring is disabled. | |
| 264 contended_time = max_julong; | |
| 265 waited_time = max_julong; | |
| 266 } | |
| 267 | |
| 268 int thread_status = snapshot->thread_status(); | |
| 269 assert((thread_status & JMM_THREAD_STATE_FLAG_MASK) == 0, "Flags already set in thread_status in Thread object"); | |
| 270 if (snapshot->is_ext_suspended()) { | |
| 271 thread_status |= JMM_THREAD_STATE_FLAG_SUSPENDED; | |
| 272 } | |
| 273 if (snapshot->is_in_native()) { | |
| 274 thread_status |= JMM_THREAD_STATE_FLAG_NATIVE; | |
| 275 } | |
| 276 | |
| 277 ThreadStackTrace* st = snapshot->get_stack_trace(); | |
| 278 Handle stacktrace_h; | |
| 279 if (st != NULL) { | |
| 280 stacktrace_h = st->allocate_fill_stack_trace_element_array(CHECK); | |
| 281 } else { | |
| 282 stacktrace_h = Handle(); | |
| 283 } | |
| 284 | |
| 285 args->push_oop(snapshot_thread); | |
| 286 args->push_int(thread_status); | |
| 287 args->push_oop(Handle(THREAD, snapshot->blocker_object())); | |
| 288 args->push_oop(Handle(THREAD, snapshot->blocker_object_owner())); | |
| 289 args->push_long(snapshot->contended_enter_count()); | |
| 290 args->push_long(contended_time); | |
| 291 args->push_long(snapshot->monitor_wait_count() + snapshot->sleep_count()); | |
| 292 args->push_long(waited_time); | |
| 293 args->push_oop(stacktrace_h); | |
| 294 } | |
| 295 | |
| 296 // Helper function to construct a ThreadInfo object | |
| 297 instanceOop Management::create_thread_info_instance(ThreadSnapshot* snapshot, TRAPS) { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
298 Klass* k = Management::java_lang_management_ThreadInfo_klass(CHECK_NULL); |
| 0 | 299 instanceKlassHandle ik (THREAD, k); |
| 300 | |
| 301 JavaValue result(T_VOID); | |
| 302 JavaCallArguments args(14); | |
| 303 | |
| 304 // First allocate a ThreadObj object and | |
| 305 // push the receiver as the first argument | |
| 306 Handle element = ik->allocate_instance_handle(CHECK_NULL); | |
| 307 args.push_oop(element); | |
| 308 | |
| 309 // initialize the arguments for the ThreadInfo constructor | |
| 310 initialize_ThreadInfo_constructor_arguments(&args, snapshot, CHECK_NULL); | |
| 311 | |
| 312 // Call ThreadInfo constructor with no locked monitors and synchronizers | |
| 313 JavaCalls::call_special(&result, | |
| 314 ik, | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2100
diff
changeset
|
315 vmSymbols::object_initializer_name(), |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2100
diff
changeset
|
316 vmSymbols::java_lang_management_ThreadInfo_constructor_signature(), |
| 0 | 317 &args, |
| 318 CHECK_NULL); | |
| 319 | |
| 320 return (instanceOop) element(); | |
| 321 } | |
| 322 | |
| 323 instanceOop Management::create_thread_info_instance(ThreadSnapshot* snapshot, | |
| 324 objArrayHandle monitors_array, | |
| 325 typeArrayHandle depths_array, | |
| 326 objArrayHandle synchronizers_array, | |
| 327 TRAPS) { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
328 Klass* k = Management::java_lang_management_ThreadInfo_klass(CHECK_NULL); |
| 0 | 329 instanceKlassHandle ik (THREAD, k); |
| 330 | |
| 331 JavaValue result(T_VOID); | |
| 332 JavaCallArguments args(17); | |
| 333 | |
| 334 // First allocate a ThreadObj object and | |
| 335 // push the receiver as the first argument | |
| 336 Handle element = ik->allocate_instance_handle(CHECK_NULL); | |
| 337 args.push_oop(element); | |
| 338 | |
| 339 // initialize the arguments for the ThreadInfo constructor | |
| 340 initialize_ThreadInfo_constructor_arguments(&args, snapshot, CHECK_NULL); | |
| 341 | |
| 342 // push the locked monitors and synchronizers in the arguments | |
| 343 args.push_oop(monitors_array); | |
| 344 args.push_oop(depths_array); | |
| 345 args.push_oop(synchronizers_array); | |
| 346 | |
| 347 // Call ThreadInfo constructor with locked monitors and synchronizers | |
| 348 JavaCalls::call_special(&result, | |
| 349 ik, | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2100
diff
changeset
|
350 vmSymbols::object_initializer_name(), |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2100
diff
changeset
|
351 vmSymbols::java_lang_management_ThreadInfo_with_locks_constructor_signature(), |
| 0 | 352 &args, |
| 353 CHECK_NULL); | |
| 354 | |
| 355 return (instanceOop) element(); | |
| 356 } | |
| 357 | |
| 358 // Helper functions | |
| 359 static JavaThread* find_java_thread_from_id(jlong thread_id) { | |
| 360 assert(Threads_lock->owned_by_self(), "Must hold Threads_lock"); | |
| 361 | |
| 362 JavaThread* java_thread = NULL; | |
| 363 // Sequential search for now. Need to do better optimization later. | |
| 364 for (JavaThread* thread = Threads::first(); thread != NULL; thread = thread->next()) { | |
| 365 oop tobj = thread->threadObj(); | |
| 366 if (!thread->is_exiting() && | |
| 367 tobj != NULL && | |
| 368 thread_id == java_lang_Thread::thread_id(tobj)) { | |
| 369 java_thread = thread; | |
| 370 break; | |
| 371 } | |
| 372 } | |
| 373 return java_thread; | |
| 374 } | |
| 375 | |
| 376 static GCMemoryManager* get_gc_memory_manager_from_jobject(jobject mgr, TRAPS) { | |
| 377 if (mgr == NULL) { | |
| 378 THROW_(vmSymbols::java_lang_NullPointerException(), NULL); | |
| 379 } | |
| 380 oop mgr_obj = JNIHandles::resolve(mgr); | |
| 381 instanceHandle h(THREAD, (instanceOop) mgr_obj); | |
| 382 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
383 Klass* k = Management::java_lang_management_GarbageCollectorMXBean_klass(CHECK_NULL); |
| 0 | 384 if (!h->is_a(k)) { |
| 385 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 386 "the object is not an instance of java.lang.management.GarbageCollectorMXBean class", | |
| 387 NULL); | |
| 388 } | |
| 389 | |
| 390 MemoryManager* gc = MemoryService::get_memory_manager(h); | |
| 391 if (gc == NULL || !gc->is_gc_memory_manager()) { | |
| 392 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 393 "Invalid GC memory manager", | |
| 394 NULL); | |
| 395 } | |
| 396 return (GCMemoryManager*) gc; | |
| 397 } | |
| 398 | |
| 399 static MemoryPool* get_memory_pool_from_jobject(jobject obj, TRAPS) { | |
| 400 if (obj == NULL) { | |
| 401 THROW_(vmSymbols::java_lang_NullPointerException(), NULL); | |
| 402 } | |
| 403 | |
| 404 oop pool_obj = JNIHandles::resolve(obj); | |
| 405 assert(pool_obj->is_instance(), "Should be an instanceOop"); | |
| 406 instanceHandle ph(THREAD, (instanceOop) pool_obj); | |
| 407 | |
| 408 return MemoryService::get_memory_pool(ph); | |
| 409 } | |
| 410 | |
| 411 static void validate_thread_id_array(typeArrayHandle ids_ah, TRAPS) { | |
| 412 int num_threads = ids_ah->length(); | |
| 413 | |
| 414 // Validate input thread IDs | |
| 415 int i = 0; | |
| 416 for (i = 0; i < num_threads; i++) { | |
| 417 jlong tid = ids_ah->long_at(i); | |
| 418 if (tid <= 0) { | |
| 419 // throw exception if invalid thread id. | |
| 420 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 421 "Invalid thread ID entry"); | |
| 422 } | |
| 423 } | |
| 424 } | |
| 425 | |
| 426 static void validate_thread_info_array(objArrayHandle infoArray_h, TRAPS) { | |
| 427 // check if the element of infoArray is of type ThreadInfo class | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
428 Klass* threadinfo_klass = Management::java_lang_management_ThreadInfo_klass(CHECK); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
429 Klass* element_klass = objArrayKlass::cast(infoArray_h->klass())->element_klass(); |
| 0 | 430 if (element_klass != threadinfo_klass) { |
| 431 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 432 "infoArray element type is not ThreadInfo class"); | |
| 433 } | |
| 434 } | |
| 435 | |
| 436 | |
| 437 static MemoryManager* get_memory_manager_from_jobject(jobject obj, TRAPS) { | |
| 438 if (obj == NULL) { | |
| 439 THROW_(vmSymbols::java_lang_NullPointerException(), NULL); | |
| 440 } | |
| 441 | |
| 442 oop mgr_obj = JNIHandles::resolve(obj); | |
| 443 assert(mgr_obj->is_instance(), "Should be an instanceOop"); | |
| 444 instanceHandle mh(THREAD, (instanceOop) mgr_obj); | |
| 445 | |
| 446 return MemoryService::get_memory_manager(mh); | |
| 447 } | |
| 448 | |
| 449 // Returns a version string and sets major and minor version if | |
| 450 // the input parameters are non-null. | |
| 451 JVM_LEAF(jint, jmm_GetVersion(JNIEnv *env)) | |
| 452 return JMM_VERSION; | |
| 453 JVM_END | |
| 454 | |
| 455 // Gets the list of VM monitoring and management optional supports | |
| 456 // Returns 0 if succeeded; otherwise returns non-zero. | |
| 457 JVM_LEAF(jint, jmm_GetOptionalSupport(JNIEnv *env, jmmOptionalSupport* support)) | |
| 458 if (support == NULL) { | |
| 459 return -1; | |
| 460 } | |
| 461 Management::get_optional_support(support); | |
| 462 return 0; | |
| 463 JVM_END | |
| 464 | |
| 465 // Returns a java.lang.String object containing the input arguments to the VM. | |
| 466 JVM_ENTRY(jobject, jmm_GetInputArguments(JNIEnv *env)) | |
| 467 ResourceMark rm(THREAD); | |
| 468 | |
| 469 if (Arguments::num_jvm_args() == 0 && Arguments::num_jvm_flags() == 0) { | |
| 470 return NULL; | |
| 471 } | |
| 472 | |
| 473 char** vm_flags = Arguments::jvm_flags_array(); | |
| 474 char** vm_args = Arguments::jvm_args_array(); | |
| 475 int num_flags = Arguments::num_jvm_flags(); | |
| 476 int num_args = Arguments::num_jvm_args(); | |
| 477 | |
| 478 size_t length = 1; // null terminator | |
| 479 int i; | |
| 480 for (i = 0; i < num_flags; i++) { | |
| 481 length += strlen(vm_flags[i]); | |
| 482 } | |
| 483 for (i = 0; i < num_args; i++) { | |
| 484 length += strlen(vm_args[i]); | |
| 485 } | |
| 486 // add a space between each argument | |
| 487 length += num_flags + num_args - 1; | |
| 488 | |
| 489 // Return the list of input arguments passed to the VM | |
| 490 // and preserve the order that the VM processes. | |
| 491 char* args = NEW_RESOURCE_ARRAY(char, length); | |
| 492 args[0] = '\0'; | |
| 493 // concatenate all jvm_flags | |
| 494 if (num_flags > 0) { | |
| 495 strcat(args, vm_flags[0]); | |
| 496 for (i = 1; i < num_flags; i++) { | |
| 497 strcat(args, " "); | |
| 498 strcat(args, vm_flags[i]); | |
| 499 } | |
| 500 } | |
| 501 | |
| 502 if (num_args > 0 && num_flags > 0) { | |
| 503 // append a space if args already contains one or more jvm_flags | |
| 504 strcat(args, " "); | |
| 505 } | |
| 506 | |
| 507 // concatenate all jvm_args | |
| 508 if (num_args > 0) { | |
| 509 strcat(args, vm_args[0]); | |
| 510 for (i = 1; i < num_args; i++) { | |
| 511 strcat(args, " "); | |
| 512 strcat(args, vm_args[i]); | |
| 513 } | |
| 514 } | |
| 515 | |
| 516 Handle hargs = java_lang_String::create_from_platform_dependent_str(args, CHECK_NULL); | |
| 517 return JNIHandles::make_local(env, hargs()); | |
| 518 JVM_END | |
| 519 | |
| 520 // Returns an array of java.lang.String object containing the input arguments to the VM. | |
| 521 JVM_ENTRY(jobjectArray, jmm_GetInputArgumentArray(JNIEnv *env)) | |
| 522 ResourceMark rm(THREAD); | |
| 523 | |
| 524 if (Arguments::num_jvm_args() == 0 && Arguments::num_jvm_flags() == 0) { | |
| 525 return NULL; | |
| 526 } | |
| 527 | |
| 528 char** vm_flags = Arguments::jvm_flags_array(); | |
| 529 char** vm_args = Arguments::jvm_args_array(); | |
| 530 int num_flags = Arguments::num_jvm_flags(); | |
| 531 int num_args = Arguments::num_jvm_args(); | |
| 532 | |
| 1142 | 533 instanceKlassHandle ik (THREAD, SystemDictionary::String_klass()); |
| 0 | 534 objArrayOop r = oopFactory::new_objArray(ik(), num_args + num_flags, CHECK_NULL); |
| 535 objArrayHandle result_h(THREAD, r); | |
| 536 | |
| 537 int index = 0; | |
| 538 for (int j = 0; j < num_flags; j++, index++) { | |
| 539 Handle h = java_lang_String::create_from_platform_dependent_str(vm_flags[j], CHECK_NULL); | |
| 540 result_h->obj_at_put(index, h()); | |
| 541 } | |
| 542 for (int i = 0; i < num_args; i++, index++) { | |
| 543 Handle h = java_lang_String::create_from_platform_dependent_str(vm_args[i], CHECK_NULL); | |
| 544 result_h->obj_at_put(index, h()); | |
| 545 } | |
| 546 return (jobjectArray) JNIHandles::make_local(env, result_h()); | |
| 547 JVM_END | |
| 548 | |
| 549 // Returns an array of java/lang/management/MemoryPoolMXBean object | |
| 550 // one for each memory pool if obj == null; otherwise returns | |
| 551 // an array of memory pools for a given memory manager if | |
| 552 // it is a valid memory manager. | |
| 553 JVM_ENTRY(jobjectArray, jmm_GetMemoryPools(JNIEnv* env, jobject obj)) | |
| 554 ResourceMark rm(THREAD); | |
| 555 | |
| 556 int num_memory_pools; | |
| 557 MemoryManager* mgr = NULL; | |
| 558 if (obj == NULL) { | |
| 559 num_memory_pools = MemoryService::num_memory_pools(); | |
| 560 } else { | |
| 561 mgr = get_memory_manager_from_jobject(obj, CHECK_NULL); | |
| 562 if (mgr == NULL) { | |
| 563 return NULL; | |
| 564 } | |
| 565 num_memory_pools = mgr->num_memory_pools(); | |
| 566 } | |
| 567 | |
| 568 // Allocate the resulting MemoryPoolMXBean[] object | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
569 Klass* k = Management::java_lang_management_MemoryPoolMXBean_klass(CHECK_NULL); |
| 0 | 570 instanceKlassHandle ik (THREAD, k); |
| 571 objArrayOop r = oopFactory::new_objArray(ik(), num_memory_pools, CHECK_NULL); | |
| 572 objArrayHandle poolArray(THREAD, r); | |
| 573 | |
| 574 if (mgr == NULL) { | |
| 575 // Get all memory pools | |
| 576 for (int i = 0; i < num_memory_pools; i++) { | |
| 577 MemoryPool* pool = MemoryService::get_memory_pool(i); | |
| 578 instanceOop p = pool->get_memory_pool_instance(CHECK_NULL); | |
| 579 instanceHandle ph(THREAD, p); | |
| 580 poolArray->obj_at_put(i, ph()); | |
| 581 } | |
| 582 } else { | |
| 583 // Get memory pools managed by a given memory manager | |
| 584 for (int i = 0; i < num_memory_pools; i++) { | |
| 585 MemoryPool* pool = mgr->get_memory_pool(i); | |
| 586 instanceOop p = pool->get_memory_pool_instance(CHECK_NULL); | |
| 587 instanceHandle ph(THREAD, p); | |
| 588 poolArray->obj_at_put(i, ph()); | |
| 589 } | |
| 590 } | |
| 591 return (jobjectArray) JNIHandles::make_local(env, poolArray()); | |
| 592 JVM_END | |
| 593 | |
| 594 // Returns an array of java/lang/management/MemoryManagerMXBean object | |
| 595 // one for each memory manager if obj == null; otherwise returns | |
| 596 // an array of memory managers for a given memory pool if | |
| 597 // it is a valid memory pool. | |
| 598 JVM_ENTRY(jobjectArray, jmm_GetMemoryManagers(JNIEnv* env, jobject obj)) | |
| 599 ResourceMark rm(THREAD); | |
| 600 | |
| 601 int num_mgrs; | |
| 602 MemoryPool* pool = NULL; | |
| 603 if (obj == NULL) { | |
| 604 num_mgrs = MemoryService::num_memory_managers(); | |
| 605 } else { | |
| 606 pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 607 if (pool == NULL) { | |
| 608 return NULL; | |
| 609 } | |
| 610 num_mgrs = pool->num_memory_managers(); | |
| 611 } | |
| 612 | |
| 613 // Allocate the resulting MemoryManagerMXBean[] object | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
614 Klass* k = Management::java_lang_management_MemoryManagerMXBean_klass(CHECK_NULL); |
| 0 | 615 instanceKlassHandle ik (THREAD, k); |
| 616 objArrayOop r = oopFactory::new_objArray(ik(), num_mgrs, CHECK_NULL); | |
| 617 objArrayHandle mgrArray(THREAD, r); | |
| 618 | |
| 619 if (pool == NULL) { | |
| 620 // Get all memory managers | |
| 621 for (int i = 0; i < num_mgrs; i++) { | |
| 622 MemoryManager* mgr = MemoryService::get_memory_manager(i); | |
| 623 instanceOop p = mgr->get_memory_manager_instance(CHECK_NULL); | |
| 624 instanceHandle ph(THREAD, p); | |
| 625 mgrArray->obj_at_put(i, ph()); | |
| 626 } | |
| 627 } else { | |
| 628 // Get memory managers for a given memory pool | |
| 629 for (int i = 0; i < num_mgrs; i++) { | |
| 630 MemoryManager* mgr = pool->get_memory_manager(i); | |
| 631 instanceOop p = mgr->get_memory_manager_instance(CHECK_NULL); | |
| 632 instanceHandle ph(THREAD, p); | |
| 633 mgrArray->obj_at_put(i, ph()); | |
| 634 } | |
| 635 } | |
| 636 return (jobjectArray) JNIHandles::make_local(env, mgrArray()); | |
| 637 JVM_END | |
| 638 | |
| 639 | |
| 640 // Returns a java/lang/management/MemoryUsage object containing the memory usage | |
| 641 // of a given memory pool. | |
| 642 JVM_ENTRY(jobject, jmm_GetMemoryPoolUsage(JNIEnv* env, jobject obj)) | |
| 643 ResourceMark rm(THREAD); | |
| 644 | |
| 645 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 646 if (pool != NULL) { | |
| 647 MemoryUsage usage = pool->get_memory_usage(); | |
| 648 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 649 return JNIHandles::make_local(env, h()); | |
| 650 } else { | |
| 651 return NULL; | |
| 652 } | |
| 653 JVM_END | |
| 654 | |
| 655 // Returns a java/lang/management/MemoryUsage object containing the memory usage | |
| 656 // of a given memory pool. | |
| 657 JVM_ENTRY(jobject, jmm_GetPeakMemoryPoolUsage(JNIEnv* env, jobject obj)) | |
| 658 ResourceMark rm(THREAD); | |
| 659 | |
| 660 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 661 if (pool != NULL) { | |
| 662 MemoryUsage usage = pool->get_peak_memory_usage(); | |
| 663 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 664 return JNIHandles::make_local(env, h()); | |
| 665 } else { | |
| 666 return NULL; | |
| 667 } | |
| 668 JVM_END | |
| 669 | |
| 670 // Returns a java/lang/management/MemoryUsage object containing the memory usage | |
| 671 // of a given memory pool after most recent GC. | |
| 672 JVM_ENTRY(jobject, jmm_GetPoolCollectionUsage(JNIEnv* env, jobject obj)) | |
| 673 ResourceMark rm(THREAD); | |
| 674 | |
| 675 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 676 if (pool != NULL && pool->is_collected_pool()) { | |
| 677 MemoryUsage usage = pool->get_last_collection_usage(); | |
| 678 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 679 return JNIHandles::make_local(env, h()); | |
| 680 } else { | |
| 681 return NULL; | |
| 682 } | |
| 683 JVM_END | |
| 684 | |
| 685 // Sets the memory pool sensor for a threshold type | |
| 686 JVM_ENTRY(void, jmm_SetPoolSensor(JNIEnv* env, jobject obj, jmmThresholdType type, jobject sensorObj)) | |
| 687 if (obj == NULL || sensorObj == NULL) { | |
| 688 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 689 } | |
| 690 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
691 Klass* sensor_klass = Management::sun_management_Sensor_klass(CHECK); |
| 0 | 692 oop s = JNIHandles::resolve(sensorObj); |
| 693 assert(s->is_instance(), "Sensor should be an instanceOop"); | |
| 694 instanceHandle sensor_h(THREAD, (instanceOop) s); | |
| 695 if (!sensor_h->is_a(sensor_klass)) { | |
| 696 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 697 "Sensor is not an instance of sun.management.Sensor class"); | |
| 698 } | |
| 699 | |
| 700 MemoryPool* mpool = get_memory_pool_from_jobject(obj, CHECK); | |
| 701 assert(mpool != NULL, "MemoryPool should exist"); | |
| 702 | |
| 703 switch (type) { | |
| 704 case JMM_USAGE_THRESHOLD_HIGH: | |
| 705 case JMM_USAGE_THRESHOLD_LOW: | |
| 706 // have only one sensor for threshold high and low | |
| 707 mpool->set_usage_sensor_obj(sensor_h); | |
| 708 break; | |
| 709 case JMM_COLLECTION_USAGE_THRESHOLD_HIGH: | |
| 710 case JMM_COLLECTION_USAGE_THRESHOLD_LOW: | |
| 711 // have only one sensor for threshold high and low | |
| 712 mpool->set_gc_usage_sensor_obj(sensor_h); | |
| 713 break; | |
| 714 default: | |
| 715 assert(false, "Unrecognized type"); | |
| 716 } | |
| 717 | |
| 718 JVM_END | |
| 719 | |
| 720 | |
| 721 // Sets the threshold of a given memory pool. | |
| 722 // Returns the previous threshold. | |
| 723 // | |
| 724 // Input parameters: | |
| 725 // pool - the MemoryPoolMXBean object | |
| 726 // type - threshold type | |
| 727 // threshold - the new threshold (must not be negative) | |
| 728 // | |
| 729 JVM_ENTRY(jlong, jmm_SetPoolThreshold(JNIEnv* env, jobject obj, jmmThresholdType type, jlong threshold)) | |
| 730 if (threshold < 0) { | |
| 731 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 732 "Invalid threshold value", | |
| 733 -1); | |
| 734 } | |
| 735 | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
350
diff
changeset
|
736 if ((size_t)threshold > max_uintx) { |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
350
diff
changeset
|
737 stringStream st; |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
350
diff
changeset
|
738 st.print("Invalid valid threshold value. Threshold value (" UINT64_FORMAT ") > max value of size_t (" SIZE_FORMAT ")", (size_t)threshold, max_uintx); |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
350
diff
changeset
|
739 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), st.as_string(), -1); |
| 0 | 740 } |
| 741 | |
| 742 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_(0L)); | |
| 743 assert(pool != NULL, "MemoryPool should exist"); | |
| 744 | |
| 745 jlong prev = 0; | |
| 746 switch (type) { | |
| 747 case JMM_USAGE_THRESHOLD_HIGH: | |
| 748 if (!pool->usage_threshold()->is_high_threshold_supported()) { | |
| 749 return -1; | |
| 750 } | |
| 751 prev = pool->usage_threshold()->set_high_threshold((size_t) threshold); | |
| 752 break; | |
| 753 | |
| 754 case JMM_USAGE_THRESHOLD_LOW: | |
| 755 if (!pool->usage_threshold()->is_low_threshold_supported()) { | |
| 756 return -1; | |
| 757 } | |
| 758 prev = pool->usage_threshold()->set_low_threshold((size_t) threshold); | |
| 759 break; | |
| 760 | |
| 761 case JMM_COLLECTION_USAGE_THRESHOLD_HIGH: | |
| 762 if (!pool->gc_usage_threshold()->is_high_threshold_supported()) { | |
| 763 return -1; | |
| 764 } | |
| 765 // return and the new threshold is effective for the next GC | |
| 766 return pool->gc_usage_threshold()->set_high_threshold((size_t) threshold); | |
| 767 | |
| 768 case JMM_COLLECTION_USAGE_THRESHOLD_LOW: | |
| 769 if (!pool->gc_usage_threshold()->is_low_threshold_supported()) { | |
| 770 return -1; | |
| 771 } | |
| 772 // return and the new threshold is effective for the next GC | |
| 773 return pool->gc_usage_threshold()->set_low_threshold((size_t) threshold); | |
| 774 | |
| 775 default: | |
| 776 assert(false, "Unrecognized type"); | |
| 777 return -1; | |
| 778 } | |
| 779 | |
| 780 // When the threshold is changed, reevaluate if the low memory | |
| 781 // detection is enabled. | |
| 782 if (prev != threshold) { | |
| 783 LowMemoryDetector::recompute_enabled_for_collected_pools(); | |
| 784 LowMemoryDetector::detect_low_memory(pool); | |
| 785 } | |
| 786 return prev; | |
| 787 JVM_END | |
| 788 | |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
789 // Gets an array containing the amount of memory allocated on the Java |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
790 // heap for a set of threads (in bytes). Each element of the array is |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
791 // the amount of memory allocated for the thread ID specified in the |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
792 // corresponding entry in the given array of thread IDs; or -1 if the |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
793 // thread does not exist or has terminated. |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
794 JVM_ENTRY(void, jmm_GetThreadAllocatedMemory(JNIEnv *env, jlongArray ids, |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
795 jlongArray sizeArray)) |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
796 // Check if threads is null |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
797 if (ids == NULL || sizeArray == NULL) { |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
798 THROW(vmSymbols::java_lang_NullPointerException()); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
799 } |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
800 |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
801 ResourceMark rm(THREAD); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
802 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(ids)); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
803 typeArrayHandle ids_ah(THREAD, ta); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
804 |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
805 typeArrayOop sa = typeArrayOop(JNIHandles::resolve_non_null(sizeArray)); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
806 typeArrayHandle sizeArray_h(THREAD, sa); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
807 |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
808 // validate the thread id array |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
809 validate_thread_id_array(ids_ah, CHECK); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
810 |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
811 // sizeArray must be of the same length as the given array of thread IDs |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
812 int num_threads = ids_ah->length(); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
813 if (num_threads != sizeArray_h->length()) { |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
814 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
815 "The length of the given long array does not match the length of " |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
816 "the given array of thread IDs"); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
817 } |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
818 |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
819 MutexLockerEx ml(Threads_lock); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
820 for (int i = 0; i < num_threads; i++) { |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
821 JavaThread* java_thread = find_java_thread_from_id(ids_ah->long_at(i)); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
822 if (java_thread != NULL) { |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
823 sizeArray_h->long_at_put(i, java_thread->cooked_allocated_bytes()); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
824 } |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
825 } |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
826 JVM_END |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
827 |
| 0 | 828 // Returns a java/lang/management/MemoryUsage object representing |
| 829 // the memory usage for the heap or non-heap memory. | |
| 830 JVM_ENTRY(jobject, jmm_GetMemoryUsage(JNIEnv* env, jboolean heap)) | |
| 831 ResourceMark rm(THREAD); | |
| 832 | |
| 833 // Calculate the memory usage | |
| 834 size_t total_init = 0; | |
| 835 size_t total_used = 0; | |
| 836 size_t total_committed = 0; | |
| 837 size_t total_max = 0; | |
| 838 bool has_undefined_init_size = false; | |
| 839 bool has_undefined_max_size = false; | |
| 840 | |
| 841 for (int i = 0; i < MemoryService::num_memory_pools(); i++) { | |
| 842 MemoryPool* pool = MemoryService::get_memory_pool(i); | |
| 843 if ((heap && pool->is_heap()) || (!heap && pool->is_non_heap())) { | |
| 844 MemoryUsage u = pool->get_memory_usage(); | |
| 845 total_used += u.used(); | |
| 846 total_committed += u.committed(); | |
| 847 | |
| 848 // if any one of the memory pool has undefined init_size or max_size, | |
| 849 // set it to -1 | |
| 850 if (u.init_size() == (size_t)-1) { | |
| 851 has_undefined_init_size = true; | |
| 852 } | |
| 853 if (!has_undefined_init_size) { | |
| 854 total_init += u.init_size(); | |
| 855 } | |
| 856 | |
| 857 if (u.max_size() == (size_t)-1) { | |
| 858 has_undefined_max_size = true; | |
| 859 } | |
| 860 if (!has_undefined_max_size) { | |
| 861 total_max += u.max_size(); | |
| 862 } | |
| 863 } | |
| 864 } | |
| 865 | |
|
1757
1c63587d925b
6980206: G1: assert(has_undefined_max_size, "Undefined max size");
tonyp
parents:
1703
diff
changeset
|
866 // In our current implementation, we make sure that all non-heap |
|
1c63587d925b
6980206: G1: assert(has_undefined_max_size, "Undefined max size");
tonyp
parents:
1703
diff
changeset
|
867 // pools have defined init and max sizes. Heap pools do not matter, |
|
1c63587d925b
6980206: G1: assert(has_undefined_max_size, "Undefined max size");
tonyp
parents:
1703
diff
changeset
|
868 // as we never use total_init and total_max for them. |
|
1c63587d925b
6980206: G1: assert(has_undefined_max_size, "Undefined max size");
tonyp
parents:
1703
diff
changeset
|
869 assert(heap || !has_undefined_init_size, "Undefined init size"); |
|
1c63587d925b
6980206: G1: assert(has_undefined_max_size, "Undefined max size");
tonyp
parents:
1703
diff
changeset
|
870 assert(heap || !has_undefined_max_size, "Undefined max size"); |
| 0 | 871 |
| 1064 | 872 MemoryUsage usage((heap ? InitialHeapSize : total_init), |
| 0 | 873 total_used, |
| 874 total_committed, | |
| 875 (heap ? Universe::heap()->max_capacity() : total_max)); | |
| 876 | |
| 877 Handle obj = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 878 return JNIHandles::make_local(env, obj()); | |
| 879 JVM_END | |
| 880 | |
| 881 // Returns the boolean value of a given attribute. | |
| 882 JVM_LEAF(jboolean, jmm_GetBoolAttribute(JNIEnv *env, jmmBoolAttribute att)) | |
| 883 switch (att) { | |
| 884 case JMM_VERBOSE_GC: | |
| 885 return MemoryService::get_verbose(); | |
| 886 case JMM_VERBOSE_CLASS: | |
| 887 return ClassLoadingService::get_verbose(); | |
| 888 case JMM_THREAD_CONTENTION_MONITORING: | |
| 889 return ThreadService::is_thread_monitoring_contention(); | |
| 890 case JMM_THREAD_CPU_TIME: | |
| 891 return ThreadService::is_thread_cpu_time_enabled(); | |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
892 case JMM_THREAD_ALLOCATED_MEMORY: |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
893 return ThreadService::is_thread_allocated_memory_enabled(); |
| 0 | 894 default: |
| 895 assert(0, "Unrecognized attribute"); | |
| 896 return false; | |
| 897 } | |
| 898 JVM_END | |
| 899 | |
| 900 // Sets the given boolean attribute and returns the previous value. | |
| 901 JVM_ENTRY(jboolean, jmm_SetBoolAttribute(JNIEnv *env, jmmBoolAttribute att, jboolean flag)) | |
| 902 switch (att) { | |
| 903 case JMM_VERBOSE_GC: | |
| 904 return MemoryService::set_verbose(flag != 0); | |
| 905 case JMM_VERBOSE_CLASS: | |
| 906 return ClassLoadingService::set_verbose(flag != 0); | |
| 907 case JMM_THREAD_CONTENTION_MONITORING: | |
| 908 return ThreadService::set_thread_monitoring_contention(flag != 0); | |
| 909 case JMM_THREAD_CPU_TIME: | |
| 910 return ThreadService::set_thread_cpu_time_enabled(flag != 0); | |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
911 case JMM_THREAD_ALLOCATED_MEMORY: |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
912 return ThreadService::set_thread_allocated_memory_enabled(flag != 0); |
| 0 | 913 default: |
| 914 assert(0, "Unrecognized attribute"); | |
| 915 return false; | |
| 916 } | |
| 917 JVM_END | |
| 918 | |
| 919 | |
| 920 static jlong get_gc_attribute(GCMemoryManager* mgr, jmmLongAttribute att) { | |
| 921 switch (att) { | |
| 922 case JMM_GC_TIME_MS: | |
| 923 return mgr->gc_time_ms(); | |
| 924 | |
| 925 case JMM_GC_COUNT: | |
| 926 return mgr->gc_count(); | |
| 927 | |
| 928 case JMM_GC_EXT_ATTRIBUTE_INFO_SIZE: | |
| 929 // current implementation only has 1 ext attribute | |
| 930 return 1; | |
| 931 | |
| 932 default: | |
| 933 assert(0, "Unrecognized GC attribute"); | |
| 934 return -1; | |
| 935 } | |
| 936 } | |
| 937 | |
| 938 class VmThreadCountClosure: public ThreadClosure { | |
| 939 private: | |
| 940 int _count; | |
| 941 public: | |
| 942 VmThreadCountClosure() : _count(0) {}; | |
| 943 void do_thread(Thread* thread); | |
| 944 int count() { return _count; } | |
| 945 }; | |
| 946 | |
| 947 void VmThreadCountClosure::do_thread(Thread* thread) { | |
| 948 // exclude externally visible JavaThreads | |
| 949 if (thread->is_Java_thread() && !thread->is_hidden_from_external_view()) { | |
| 950 return; | |
| 951 } | |
| 952 | |
| 953 _count++; | |
| 954 } | |
| 955 | |
| 956 static jint get_vm_thread_count() { | |
| 957 VmThreadCountClosure vmtcc; | |
| 958 { | |
| 959 MutexLockerEx ml(Threads_lock); | |
| 960 Threads::threads_do(&vmtcc); | |
| 961 } | |
| 962 | |
| 963 return vmtcc.count(); | |
| 964 } | |
| 965 | |
| 966 static jint get_num_flags() { | |
| 967 // last flag entry is always NULL, so subtract 1 | |
| 968 int nFlags = (int) Flag::numFlags - 1; | |
| 969 int count = 0; | |
| 970 for (int i = 0; i < nFlags; i++) { | |
| 971 Flag* flag = &Flag::flags[i]; | |
| 350 | 972 // Exclude the locked (diagnostic, experimental) flags |
| 0 | 973 if (flag->is_unlocked() || flag->is_unlocker()) { |
| 974 count++; | |
| 975 } | |
| 976 } | |
| 977 return count; | |
| 978 } | |
| 979 | |
| 980 static jlong get_long_attribute(jmmLongAttribute att) { | |
| 981 switch (att) { | |
| 982 case JMM_CLASS_LOADED_COUNT: | |
| 983 return ClassLoadingService::loaded_class_count(); | |
| 984 | |
| 985 case JMM_CLASS_UNLOADED_COUNT: | |
| 986 return ClassLoadingService::unloaded_class_count(); | |
| 987 | |
| 988 case JMM_THREAD_TOTAL_COUNT: | |
| 989 return ThreadService::get_total_thread_count(); | |
| 990 | |
| 991 case JMM_THREAD_LIVE_COUNT: | |
| 992 return ThreadService::get_live_thread_count(); | |
| 993 | |
| 994 case JMM_THREAD_PEAK_COUNT: | |
| 995 return ThreadService::get_peak_thread_count(); | |
| 996 | |
| 997 case JMM_THREAD_DAEMON_COUNT: | |
| 998 return ThreadService::get_daemon_thread_count(); | |
| 999 | |
| 1000 case JMM_JVM_INIT_DONE_TIME_MS: | |
| 1001 return Management::vm_init_done_time(); | |
| 1002 | |
| 1003 case JMM_COMPILE_TOTAL_TIME_MS: | |
| 1004 return Management::ticks_to_ms(CompileBroker::total_compilation_ticks()); | |
| 1005 | |
| 1006 case JMM_OS_PROCESS_ID: | |
| 1007 return os::current_process_id(); | |
| 1008 | |
| 1009 // Hotspot-specific counters | |
| 1010 case JMM_CLASS_LOADED_BYTES: | |
| 1011 return ClassLoadingService::loaded_class_bytes(); | |
| 1012 | |
| 1013 case JMM_CLASS_UNLOADED_BYTES: | |
| 1014 return ClassLoadingService::unloaded_class_bytes(); | |
| 1015 | |
| 1016 case JMM_SHARED_CLASS_LOADED_COUNT: | |
| 1017 return ClassLoadingService::loaded_shared_class_count(); | |
| 1018 | |
| 1019 case JMM_SHARED_CLASS_UNLOADED_COUNT: | |
| 1020 return ClassLoadingService::unloaded_shared_class_count(); | |
| 1021 | |
| 1022 | |
| 1023 case JMM_SHARED_CLASS_LOADED_BYTES: | |
| 1024 return ClassLoadingService::loaded_shared_class_bytes(); | |
| 1025 | |
| 1026 case JMM_SHARED_CLASS_UNLOADED_BYTES: | |
| 1027 return ClassLoadingService::unloaded_shared_class_bytes(); | |
| 1028 | |
| 1029 case JMM_TOTAL_CLASSLOAD_TIME_MS: | |
| 1030 return ClassLoader::classloader_time_ms(); | |
| 1031 | |
| 1032 case JMM_VM_GLOBAL_COUNT: | |
| 1033 return get_num_flags(); | |
| 1034 | |
| 1035 case JMM_SAFEPOINT_COUNT: | |
| 1036 return RuntimeService::safepoint_count(); | |
| 1037 | |
| 1038 case JMM_TOTAL_SAFEPOINTSYNC_TIME_MS: | |
| 1039 return RuntimeService::safepoint_sync_time_ms(); | |
| 1040 | |
| 1041 case JMM_TOTAL_STOPPED_TIME_MS: | |
| 1042 return RuntimeService::safepoint_time_ms(); | |
| 1043 | |
| 1044 case JMM_TOTAL_APP_TIME_MS: | |
| 1045 return RuntimeService::application_time_ms(); | |
| 1046 | |
| 1047 case JMM_VM_THREAD_COUNT: | |
| 1048 return get_vm_thread_count(); | |
| 1049 | |
| 1050 case JMM_CLASS_INIT_TOTAL_COUNT: | |
| 1051 return ClassLoader::class_init_count(); | |
| 1052 | |
| 1053 case JMM_CLASS_INIT_TOTAL_TIME_MS: | |
| 1054 return ClassLoader::class_init_time_ms(); | |
| 1055 | |
| 1056 case JMM_CLASS_VERIFY_TOTAL_TIME_MS: | |
| 1057 return ClassLoader::class_verify_time_ms(); | |
| 1058 | |
| 1059 case JMM_METHOD_DATA_SIZE_BYTES: | |
| 1060 return ClassLoadingService::class_method_data_size(); | |
| 1061 | |
| 1062 case JMM_OS_MEM_TOTAL_PHYSICAL_BYTES: | |
| 1063 return os::physical_memory(); | |
| 1064 | |
| 1065 default: | |
| 1066 return -1; | |
| 1067 } | |
| 1068 } | |
| 1069 | |
| 1070 | |
| 1071 // Returns the long value of a given attribute. | |
| 1072 JVM_ENTRY(jlong, jmm_GetLongAttribute(JNIEnv *env, jobject obj, jmmLongAttribute att)) | |
| 1073 if (obj == NULL) { | |
| 1074 return get_long_attribute(att); | |
| 1075 } else { | |
| 1076 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK_(0L)); | |
| 1077 if (mgr != NULL) { | |
| 1078 return get_gc_attribute(mgr, att); | |
| 1079 } | |
| 1080 } | |
| 1081 return -1; | |
| 1082 JVM_END | |
| 1083 | |
| 1084 // Gets the value of all attributes specified in the given array | |
| 1085 // and sets the value in the result array. | |
| 1086 // Returns the number of attributes found. | |
| 1087 JVM_ENTRY(jint, jmm_GetLongAttributes(JNIEnv *env, | |
| 1088 jobject obj, | |
| 1089 jmmLongAttribute* atts, | |
| 1090 jint count, | |
| 1091 jlong* result)) | |
| 1092 | |
| 1093 int num_atts = 0; | |
| 1094 if (obj == NULL) { | |
| 1095 for (int i = 0; i < count; i++) { | |
| 1096 result[i] = get_long_attribute(atts[i]); | |
| 1097 if (result[i] != -1) { | |
| 1098 num_atts++; | |
| 1099 } | |
| 1100 } | |
| 1101 } else { | |
| 1102 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK_0); | |
| 1103 for (int i = 0; i < count; i++) { | |
| 1104 result[i] = get_gc_attribute(mgr, atts[i]); | |
| 1105 if (result[i] != -1) { | |
| 1106 num_atts++; | |
| 1107 } | |
| 1108 } | |
| 1109 } | |
| 1110 return num_atts; | |
| 1111 JVM_END | |
| 1112 | |
| 1113 // Helper function to do thread dump for a specific list of threads | |
| 1114 static void do_thread_dump(ThreadDumpResult* dump_result, | |
| 1115 typeArrayHandle ids_ah, // array of thread ID (long[]) | |
| 1116 int num_threads, | |
| 1117 int max_depth, | |
| 1118 bool with_locked_monitors, | |
| 1119 bool with_locked_synchronizers, | |
| 1120 TRAPS) { | |
| 1121 | |
| 1122 // First get an array of threadObj handles. | |
| 1123 // A JavaThread may terminate before we get the stack trace. | |
| 1124 GrowableArray<instanceHandle>* thread_handle_array = new GrowableArray<instanceHandle>(num_threads); | |
| 1125 { | |
| 1126 MutexLockerEx ml(Threads_lock); | |
| 1127 for (int i = 0; i < num_threads; i++) { | |
| 1128 jlong tid = ids_ah->long_at(i); | |
| 1129 JavaThread* jt = find_java_thread_from_id(tid); | |
| 1130 oop thread_obj = (jt != NULL ? jt->threadObj() : (oop)NULL); | |
| 1131 instanceHandle threadObj_h(THREAD, (instanceOop) thread_obj); | |
| 1132 thread_handle_array->append(threadObj_h); | |
| 1133 } | |
| 1134 } | |
| 1135 | |
| 1136 // Obtain thread dumps and thread snapshot information | |
| 1137 VM_ThreadDump op(dump_result, | |
| 1138 thread_handle_array, | |
| 1139 num_threads, | |
| 1140 max_depth, /* stack depth */ | |
| 1141 with_locked_monitors, | |
| 1142 with_locked_synchronizers); | |
| 1143 VMThread::execute(&op); | |
| 1144 } | |
| 1145 | |
| 1146 // Gets an array of ThreadInfo objects. Each element is the ThreadInfo | |
| 1147 // for the thread ID specified in the corresponding entry in | |
| 1148 // the given array of thread IDs; or NULL if the thread does not exist | |
| 1149 // or has terminated. | |
| 1150 // | |
| 1151 // Input parameters: | |
| 1152 // ids - array of thread IDs | |
| 1153 // maxDepth - the maximum depth of stack traces to be dumped: | |
| 1154 // maxDepth == -1 requests to dump entire stack trace. | |
| 1155 // maxDepth == 0 requests no stack trace. | |
| 1156 // infoArray - array of ThreadInfo objects | |
| 1157 // | |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1158 // QQQ - Why does this method return a value instead of void? |
| 0 | 1159 JVM_ENTRY(jint, jmm_GetThreadInfo(JNIEnv *env, jlongArray ids, jint maxDepth, jobjectArray infoArray)) |
| 1160 // Check if threads is null | |
| 1161 if (ids == NULL || infoArray == NULL) { | |
| 1162 THROW_(vmSymbols::java_lang_NullPointerException(), -1); | |
| 1163 } | |
| 1164 | |
| 1165 if (maxDepth < -1) { | |
| 1166 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1167 "Invalid maxDepth", -1); | |
| 1168 } | |
| 1169 | |
| 1170 ResourceMark rm(THREAD); | |
| 1171 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(ids)); | |
| 1172 typeArrayHandle ids_ah(THREAD, ta); | |
| 1173 | |
| 1174 oop infoArray_obj = JNIHandles::resolve_non_null(infoArray); | |
| 1175 objArrayOop oa = objArrayOop(infoArray_obj); | |
| 1176 objArrayHandle infoArray_h(THREAD, oa); | |
| 1177 | |
| 1178 // validate the thread id array | |
| 1179 validate_thread_id_array(ids_ah, CHECK_0); | |
| 1180 | |
| 1181 // validate the ThreadInfo[] parameters | |
| 1182 validate_thread_info_array(infoArray_h, CHECK_0); | |
| 1183 | |
| 1184 // infoArray must be of the same length as the given array of thread IDs | |
| 1185 int num_threads = ids_ah->length(); | |
| 1186 if (num_threads != infoArray_h->length()) { | |
| 1187 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1188 "The length of the given ThreadInfo array does not match the length of the given array of thread IDs", -1); | |
| 1189 } | |
| 1190 | |
| 1191 if (JDK_Version::is_gte_jdk16x_version()) { | |
| 1192 // make sure the AbstractOwnableSynchronizer klass is loaded before taking thread snapshots | |
| 1193 java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(CHECK_0); | |
| 1194 } | |
| 1195 | |
| 1196 // Must use ThreadDumpResult to store the ThreadSnapshot. | |
| 1197 // GC may occur after the thread snapshots are taken but before | |
| 1198 // this function returns. The threadObj and other oops kept | |
| 1199 // in the ThreadSnapshot are marked and adjusted during GC. | |
| 1200 ThreadDumpResult dump_result(num_threads); | |
| 1201 | |
| 1202 if (maxDepth == 0) { | |
| 1203 // no stack trace dumped - do not need to stop the world | |
| 1204 { | |
| 1205 MutexLockerEx ml(Threads_lock); | |
| 1206 for (int i = 0; i < num_threads; i++) { | |
| 1207 jlong tid = ids_ah->long_at(i); | |
| 1208 JavaThread* jt = find_java_thread_from_id(tid); | |
| 1209 ThreadSnapshot* ts; | |
| 1210 if (jt == NULL) { | |
| 1211 // if the thread does not exist or now it is terminated, | |
| 1212 // create dummy snapshot | |
| 1213 ts = new ThreadSnapshot(); | |
| 1214 } else { | |
| 1215 ts = new ThreadSnapshot(jt); | |
| 1216 } | |
| 1217 dump_result.add_thread_snapshot(ts); | |
| 1218 } | |
| 1219 } | |
| 1220 } else { | |
| 1221 // obtain thread dump with the specific list of threads with stack trace | |
| 1222 do_thread_dump(&dump_result, | |
| 1223 ids_ah, | |
| 1224 num_threads, | |
| 1225 maxDepth, | |
| 1226 false, /* no locked monitor */ | |
| 1227 false, /* no locked synchronizers */ | |
| 1228 CHECK_0); | |
| 1229 } | |
| 1230 | |
| 1231 int num_snapshots = dump_result.num_snapshots(); | |
| 1232 assert(num_snapshots == num_threads, "Must match the number of thread snapshots"); | |
| 1233 int index = 0; | |
| 1234 for (ThreadSnapshot* ts = dump_result.snapshots(); ts != NULL; index++, ts = ts->next()) { | |
| 1235 // For each thread, create an java/lang/management/ThreadInfo object | |
| 1236 // and fill with the thread information | |
| 1237 | |
| 1238 if (ts->threadObj() == NULL) { | |
| 1239 // if the thread does not exist or now it is terminated, set threadinfo to NULL | |
| 1240 infoArray_h->obj_at_put(index, NULL); | |
| 1241 continue; | |
| 1242 } | |
| 1243 | |
| 1244 // Create java.lang.management.ThreadInfo object | |
| 1245 instanceOop info_obj = Management::create_thread_info_instance(ts, CHECK_0); | |
| 1246 infoArray_h->obj_at_put(index, info_obj); | |
| 1247 } | |
| 1248 return 0; | |
| 1249 JVM_END | |
| 1250 | |
| 1251 // Dump thread info for the specified threads. | |
| 1252 // It returns an array of ThreadInfo objects. Each element is the ThreadInfo | |
| 1253 // for the thread ID specified in the corresponding entry in | |
| 1254 // the given array of thread IDs; or NULL if the thread does not exist | |
| 1255 // or has terminated. | |
| 1256 // | |
| 1257 // Input parameter: | |
| 1258 // ids - array of thread IDs; NULL indicates all live threads | |
| 1259 // locked_monitors - if true, dump locked object monitors | |
| 1260 // locked_synchronizers - if true, dump locked JSR-166 synchronizers | |
| 1261 // | |
| 1262 JVM_ENTRY(jobjectArray, jmm_DumpThreads(JNIEnv *env, jlongArray thread_ids, jboolean locked_monitors, jboolean locked_synchronizers)) | |
| 1263 ResourceMark rm(THREAD); | |
| 1264 | |
| 1265 if (JDK_Version::is_gte_jdk16x_version()) { | |
| 1266 // make sure the AbstractOwnableSynchronizer klass is loaded before taking thread snapshots | |
| 1267 java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(CHECK_NULL); | |
| 1268 } | |
| 1269 | |
| 1270 typeArrayOop ta = typeArrayOop(JNIHandles::resolve(thread_ids)); | |
| 1271 int num_threads = (ta != NULL ? ta->length() : 0); | |
| 1272 typeArrayHandle ids_ah(THREAD, ta); | |
| 1273 | |
| 1274 ThreadDumpResult dump_result(num_threads); // can safepoint | |
| 1275 | |
| 1276 if (ids_ah() != NULL) { | |
| 1277 | |
| 1278 // validate the thread id array | |
| 1279 validate_thread_id_array(ids_ah, CHECK_NULL); | |
| 1280 | |
| 1281 // obtain thread dump of a specific list of threads | |
| 1282 do_thread_dump(&dump_result, | |
| 1283 ids_ah, | |
| 1284 num_threads, | |
| 1285 -1, /* entire stack */ | |
| 1286 (locked_monitors ? true : false), /* with locked monitors */ | |
| 1287 (locked_synchronizers ? true : false), /* with locked synchronizers */ | |
| 1288 CHECK_NULL); | |
| 1289 } else { | |
| 1290 // obtain thread dump of all threads | |
| 1291 VM_ThreadDump op(&dump_result, | |
| 1292 -1, /* entire stack */ | |
| 1293 (locked_monitors ? true : false), /* with locked monitors */ | |
| 1294 (locked_synchronizers ? true : false) /* with locked synchronizers */); | |
| 1295 VMThread::execute(&op); | |
| 1296 } | |
| 1297 | |
| 1298 int num_snapshots = dump_result.num_snapshots(); | |
| 1299 | |
| 1300 // create the result ThreadInfo[] object | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1301 Klass* k = Management::java_lang_management_ThreadInfo_klass(CHECK_NULL); |
| 0 | 1302 instanceKlassHandle ik (THREAD, k); |
| 1303 objArrayOop r = oopFactory::new_objArray(ik(), num_snapshots, CHECK_NULL); | |
| 1304 objArrayHandle result_h(THREAD, r); | |
| 1305 | |
| 1306 int index = 0; | |
| 1307 for (ThreadSnapshot* ts = dump_result.snapshots(); ts != NULL; ts = ts->next(), index++) { | |
| 1308 if (ts->threadObj() == NULL) { | |
| 1309 // if the thread does not exist or now it is terminated, set threadinfo to NULL | |
| 1310 result_h->obj_at_put(index, NULL); | |
| 1311 continue; | |
| 1312 } | |
| 1313 | |
| 1314 ThreadStackTrace* stacktrace = ts->get_stack_trace(); | |
| 1315 assert(stacktrace != NULL, "Must have a stack trace dumped"); | |
| 1316 | |
| 1317 // Create Object[] filled with locked monitors | |
| 1318 // Create int[] filled with the stack depth where a monitor was locked | |
| 1319 int num_frames = stacktrace->get_stack_depth(); | |
| 1320 int num_locked_monitors = stacktrace->num_jni_locked_monitors(); | |
| 1321 | |
| 1322 // Count the total number of locked monitors | |
| 1323 for (int i = 0; i < num_frames; i++) { | |
| 1324 StackFrameInfo* frame = stacktrace->stack_frame_at(i); | |
| 1325 num_locked_monitors += frame->num_locked_monitors(); | |
| 1326 } | |
| 1327 | |
| 1328 objArrayHandle monitors_array; | |
| 1329 typeArrayHandle depths_array; | |
| 1330 objArrayHandle synchronizers_array; | |
| 1331 | |
| 1332 if (locked_monitors) { | |
| 1333 // Constructs Object[] and int[] to contain the object monitor and the stack depth | |
| 1334 // where the thread locked it | |
|
2267
02f78cfa4656
7020992: jmm_DumpThreads should not allocate system object arrays outside the perm gen
stefank
parents:
2231
diff
changeset
|
1335 objArrayOop array = oopFactory::new_objArray(SystemDictionary::Object_klass(), num_locked_monitors, CHECK_NULL); |
| 0 | 1336 objArrayHandle mh(THREAD, array); |
| 1337 monitors_array = mh; | |
| 1338 | |
| 1339 typeArrayOop tarray = oopFactory::new_typeArray(T_INT, num_locked_monitors, CHECK_NULL); | |
| 1340 typeArrayHandle dh(THREAD, tarray); | |
| 1341 depths_array = dh; | |
| 1342 | |
| 1343 int count = 0; | |
| 1344 int j = 0; | |
| 1345 for (int depth = 0; depth < num_frames; depth++) { | |
| 1346 StackFrameInfo* frame = stacktrace->stack_frame_at(depth); | |
| 1347 int len = frame->num_locked_monitors(); | |
| 1348 GrowableArray<oop>* locked_monitors = frame->locked_monitors(); | |
| 1349 for (j = 0; j < len; j++) { | |
| 1350 oop monitor = locked_monitors->at(j); | |
| 1351 assert(monitor != NULL && monitor->is_instance(), "must be a Java object"); | |
| 1352 monitors_array->obj_at_put(count, monitor); | |
| 1353 depths_array->int_at_put(count, depth); | |
| 1354 count++; | |
| 1355 } | |
| 1356 } | |
| 1357 | |
| 1358 GrowableArray<oop>* jni_locked_monitors = stacktrace->jni_locked_monitors(); | |
| 1359 for (j = 0; j < jni_locked_monitors->length(); j++) { | |
| 1360 oop object = jni_locked_monitors->at(j); | |
| 1361 assert(object != NULL && object->is_instance(), "must be a Java object"); | |
| 1362 monitors_array->obj_at_put(count, object); | |
| 1363 // Monitor locked via JNI MonitorEnter call doesn't have stack depth info | |
| 1364 depths_array->int_at_put(count, -1); | |
| 1365 count++; | |
| 1366 } | |
| 1367 assert(count == num_locked_monitors, "number of locked monitors doesn't match"); | |
| 1368 } | |
| 1369 | |
| 1370 if (locked_synchronizers) { | |
| 1371 // Create Object[] filled with locked JSR-166 synchronizers | |
| 1372 assert(ts->threadObj() != NULL, "Must be a valid JavaThread"); | |
| 1373 ThreadConcurrentLocks* tcl = ts->get_concurrent_locks(); | |
| 1374 GrowableArray<instanceOop>* locks = (tcl != NULL ? tcl->owned_locks() : NULL); | |
| 1375 int num_locked_synchronizers = (locks != NULL ? locks->length() : 0); | |
| 1376 | |
|
2267
02f78cfa4656
7020992: jmm_DumpThreads should not allocate system object arrays outside the perm gen
stefank
parents:
2231
diff
changeset
|
1377 objArrayOop array = oopFactory::new_objArray(SystemDictionary::Object_klass(), num_locked_synchronizers, CHECK_NULL); |
| 0 | 1378 objArrayHandle sh(THREAD, array); |
| 1379 synchronizers_array = sh; | |
| 1380 | |
| 1381 for (int k = 0; k < num_locked_synchronizers; k++) { | |
| 1382 synchronizers_array->obj_at_put(k, locks->at(k)); | |
| 1383 } | |
| 1384 } | |
| 1385 | |
| 1386 // Create java.lang.management.ThreadInfo object | |
| 1387 instanceOop info_obj = Management::create_thread_info_instance(ts, | |
| 1388 monitors_array, | |
| 1389 depths_array, | |
| 1390 synchronizers_array, | |
| 1391 CHECK_NULL); | |
| 1392 result_h->obj_at_put(index, info_obj); | |
| 1393 } | |
| 1394 | |
| 1395 return (jobjectArray) JNIHandles::make_local(env, result_h()); | |
| 1396 JVM_END | |
| 1397 | |
| 1398 // Returns an array of Class objects. | |
| 1399 JVM_ENTRY(jobjectArray, jmm_GetLoadedClasses(JNIEnv *env)) | |
| 1400 ResourceMark rm(THREAD); | |
| 1401 | |
| 1402 LoadedClassesEnumerator lce(THREAD); // Pass current Thread as parameter | |
| 1403 | |
| 1404 int num_classes = lce.num_loaded_classes(); | |
| 1142 | 1405 objArrayOop r = oopFactory::new_objArray(SystemDictionary::Class_klass(), num_classes, CHECK_0); |
| 0 | 1406 objArrayHandle classes_ah(THREAD, r); |
| 1407 | |
| 1408 for (int i = 0; i < num_classes; i++) { | |
| 1409 KlassHandle kh = lce.get_klass(i); | |
| 1410 oop mirror = Klass::cast(kh())->java_mirror(); | |
| 1411 classes_ah->obj_at_put(i, mirror); | |
| 1412 } | |
| 1413 | |
| 1414 return (jobjectArray) JNIHandles::make_local(env, classes_ah()); | |
| 1415 JVM_END | |
| 1416 | |
| 1417 // Reset statistic. Return true if the requested statistic is reset. | |
| 1418 // Otherwise, return false. | |
| 1419 // | |
| 1420 // Input parameters: | |
| 1421 // obj - specify which instance the statistic associated with to be reset | |
| 1422 // For PEAK_POOL_USAGE stat, obj is required to be a memory pool object. | |
| 1423 // For THREAD_CONTENTION_COUNT and TIME stat, obj is required to be a thread ID. | |
| 1424 // type - the type of statistic to be reset | |
| 1425 // | |
| 1426 JVM_ENTRY(jboolean, jmm_ResetStatistic(JNIEnv *env, jvalue obj, jmmStatisticType type)) | |
| 1427 ResourceMark rm(THREAD); | |
| 1428 | |
| 1429 switch (type) { | |
| 1430 case JMM_STAT_PEAK_THREAD_COUNT: | |
| 1431 ThreadService::reset_peak_thread_count(); | |
| 1432 return true; | |
| 1433 | |
| 1434 case JMM_STAT_THREAD_CONTENTION_COUNT: | |
| 1435 case JMM_STAT_THREAD_CONTENTION_TIME: { | |
| 1436 jlong tid = obj.j; | |
| 1437 if (tid < 0) { | |
| 1438 THROW_(vmSymbols::java_lang_IllegalArgumentException(), JNI_FALSE); | |
| 1439 } | |
| 1440 | |
| 1441 // Look for the JavaThread of this given tid | |
| 1442 MutexLockerEx ml(Threads_lock); | |
| 1443 if (tid == 0) { | |
| 1444 // reset contention statistics for all threads if tid == 0 | |
| 1445 for (JavaThread* java_thread = Threads::first(); java_thread != NULL; java_thread = java_thread->next()) { | |
| 1446 if (type == JMM_STAT_THREAD_CONTENTION_COUNT) { | |
| 1447 ThreadService::reset_contention_count_stat(java_thread); | |
| 1448 } else { | |
| 1449 ThreadService::reset_contention_time_stat(java_thread); | |
| 1450 } | |
| 1451 } | |
| 1452 } else { | |
| 1453 // reset contention statistics for a given thread | |
| 1454 JavaThread* java_thread = find_java_thread_from_id(tid); | |
| 1455 if (java_thread == NULL) { | |
| 1456 return false; | |
| 1457 } | |
| 1458 | |
| 1459 if (type == JMM_STAT_THREAD_CONTENTION_COUNT) { | |
| 1460 ThreadService::reset_contention_count_stat(java_thread); | |
| 1461 } else { | |
| 1462 ThreadService::reset_contention_time_stat(java_thread); | |
| 1463 } | |
| 1464 } | |
| 1465 return true; | |
| 1466 break; | |
| 1467 } | |
| 1468 case JMM_STAT_PEAK_POOL_USAGE: { | |
| 1469 jobject o = obj.l; | |
| 1470 if (o == NULL) { | |
| 1471 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_FALSE); | |
| 1472 } | |
| 1473 | |
| 1474 oop pool_obj = JNIHandles::resolve(o); | |
| 1475 assert(pool_obj->is_instance(), "Should be an instanceOop"); | |
| 1476 instanceHandle ph(THREAD, (instanceOop) pool_obj); | |
| 1477 | |
| 1478 MemoryPool* pool = MemoryService::get_memory_pool(ph); | |
| 1479 if (pool != NULL) { | |
| 1480 pool->reset_peak_memory_usage(); | |
| 1481 return true; | |
| 1482 } | |
| 1483 break; | |
| 1484 } | |
| 1485 case JMM_STAT_GC_STAT: { | |
| 1486 jobject o = obj.l; | |
| 1487 if (o == NULL) { | |
| 1488 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_FALSE); | |
| 1489 } | |
| 1490 | |
| 1491 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(o, CHECK_0); | |
| 1492 if (mgr != NULL) { | |
| 1493 mgr->reset_gc_stat(); | |
| 1494 return true; | |
| 1495 } | |
| 1496 break; | |
| 1497 } | |
| 1498 default: | |
| 1499 assert(0, "Unknown Statistic Type"); | |
| 1500 } | |
| 1501 return false; | |
| 1502 JVM_END | |
| 1503 | |
| 1504 // Returns the fast estimate of CPU time consumed by | |
| 1505 // a given thread (in nanoseconds). | |
| 1506 // If thread_id == 0, return CPU time for the current thread. | |
| 1507 JVM_ENTRY(jlong, jmm_GetThreadCpuTime(JNIEnv *env, jlong thread_id)) | |
| 1508 if (!os::is_thread_cpu_time_supported()) { | |
| 1509 return -1; | |
| 1510 } | |
| 1511 | |
| 1512 if (thread_id < 0) { | |
| 1513 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1514 "Invalid thread ID", -1); | |
| 1515 } | |
| 1516 | |
| 1517 JavaThread* java_thread = NULL; | |
| 1518 if (thread_id == 0) { | |
| 1519 // current thread | |
| 1520 return os::current_thread_cpu_time(); | |
| 1521 } else { | |
| 1522 MutexLockerEx ml(Threads_lock); | |
| 1523 java_thread = find_java_thread_from_id(thread_id); | |
| 1524 if (java_thread != NULL) { | |
| 1525 return os::thread_cpu_time((Thread*) java_thread); | |
| 1526 } | |
| 1527 } | |
| 1528 return -1; | |
| 1529 JVM_END | |
| 1530 | |
| 1531 // Returns the CPU time consumed by a given thread (in nanoseconds). | |
| 1532 // If thread_id == 0, CPU time for the current thread is returned. | |
| 1533 // If user_sys_cpu_time = true, user level and system CPU time of | |
| 1534 // a given thread is returned; otherwise, only user level CPU time | |
| 1535 // is returned. | |
| 1536 JVM_ENTRY(jlong, jmm_GetThreadCpuTimeWithKind(JNIEnv *env, jlong thread_id, jboolean user_sys_cpu_time)) | |
| 1537 if (!os::is_thread_cpu_time_supported()) { | |
| 1538 return -1; | |
| 1539 } | |
| 1540 | |
| 1541 if (thread_id < 0) { | |
| 1542 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1543 "Invalid thread ID", -1); | |
| 1544 } | |
| 1545 | |
| 1546 JavaThread* java_thread = NULL; | |
| 1547 if (thread_id == 0) { | |
| 1548 // current thread | |
| 1549 return os::current_thread_cpu_time(user_sys_cpu_time != 0); | |
| 1550 } else { | |
| 1551 MutexLockerEx ml(Threads_lock); | |
| 1552 java_thread = find_java_thread_from_id(thread_id); | |
| 1553 if (java_thread != NULL) { | |
| 1554 return os::thread_cpu_time((Thread*) java_thread, user_sys_cpu_time != 0); | |
| 1555 } | |
| 1556 } | |
| 1557 return -1; | |
| 1558 JVM_END | |
| 1559 | |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1560 // Gets an array containing the CPU times consumed by a set of threads |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1561 // (in nanoseconds). Each element of the array is the CPU time for the |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1562 // thread ID specified in the corresponding entry in the given array |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1563 // of thread IDs; or -1 if the thread does not exist or has terminated. |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1564 // If user_sys_cpu_time = true, the sum of user level and system CPU time |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1565 // for the given thread is returned; otherwise, only user level CPU time |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1566 // is returned. |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1567 JVM_ENTRY(void, jmm_GetThreadCpuTimesWithKind(JNIEnv *env, jlongArray ids, |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1568 jlongArray timeArray, |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1569 jboolean user_sys_cpu_time)) |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1570 // Check if threads is null |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1571 if (ids == NULL || timeArray == NULL) { |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1572 THROW(vmSymbols::java_lang_NullPointerException()); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1573 } |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1574 |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1575 ResourceMark rm(THREAD); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1576 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(ids)); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1577 typeArrayHandle ids_ah(THREAD, ta); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1578 |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1579 typeArrayOop tia = typeArrayOop(JNIHandles::resolve_non_null(timeArray)); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1580 typeArrayHandle timeArray_h(THREAD, tia); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1581 |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1582 // validate the thread id array |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1583 validate_thread_id_array(ids_ah, CHECK); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1584 |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1585 // timeArray must be of the same length as the given array of thread IDs |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1586 int num_threads = ids_ah->length(); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1587 if (num_threads != timeArray_h->length()) { |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1588 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1589 "The length of the given long array does not match the length of " |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1590 "the given array of thread IDs"); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1591 } |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1592 |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1593 MutexLockerEx ml(Threads_lock); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1594 for (int i = 0; i < num_threads; i++) { |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1595 JavaThread* java_thread = find_java_thread_from_id(ids_ah->long_at(i)); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1596 if (java_thread != NULL) { |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1597 timeArray_h->long_at_put(i, os::thread_cpu_time((Thread*)java_thread, |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1598 user_sys_cpu_time != 0)); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1599 } |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1600 } |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1601 JVM_END |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
1602 |
| 0 | 1603 // Returns a String array of all VM global flag names |
| 1604 JVM_ENTRY(jobjectArray, jmm_GetVMGlobalNames(JNIEnv *env)) | |
| 1605 // last flag entry is always NULL, so subtract 1 | |
| 1606 int nFlags = (int) Flag::numFlags - 1; | |
| 1607 // allocate a temp array | |
| 1142 | 1608 objArrayOop r = oopFactory::new_objArray(SystemDictionary::String_klass(), |
| 0 | 1609 nFlags, CHECK_0); |
| 1610 objArrayHandle flags_ah(THREAD, r); | |
| 1611 int num_entries = 0; | |
| 1612 for (int i = 0; i < nFlags; i++) { | |
| 1613 Flag* flag = &Flag::flags[i]; | |
| 350 | 1614 // Exclude the locked (experimental, diagnostic) flags |
| 0 | 1615 if (flag->is_unlocked() || flag->is_unlocker()) { |
| 1616 Handle s = java_lang_String::create_from_str(flag->name, CHECK_0); | |
| 1617 flags_ah->obj_at_put(num_entries, s()); | |
| 1618 num_entries++; | |
| 1619 } | |
| 1620 } | |
| 1621 | |
| 1622 if (num_entries < nFlags) { | |
| 1623 // Return array of right length | |
| 1142 | 1624 objArrayOop res = oopFactory::new_objArray(SystemDictionary::String_klass(), num_entries, CHECK_0); |
| 0 | 1625 for(int i = 0; i < num_entries; i++) { |
| 1626 res->obj_at_put(i, flags_ah->obj_at(i)); | |
| 1627 } | |
| 1628 return (jobjectArray)JNIHandles::make_local(env, res); | |
| 1629 } | |
| 1630 | |
| 1631 return (jobjectArray)JNIHandles::make_local(env, flags_ah()); | |
| 1632 JVM_END | |
| 1633 | |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1634 // Utility function used by jmm_GetVMGlobals. Returns false if flag type |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1635 // can't be determined, true otherwise. If false is returned, then *global |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1636 // will be incomplete and invalid. |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1637 bool add_global_entry(JNIEnv* env, Handle name, jmmVMGlobal *global, Flag *flag, TRAPS) { |
| 0 | 1638 Handle flag_name; |
| 1639 if (name() == NULL) { | |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1640 flag_name = java_lang_String::create_from_str(flag->name, CHECK_false); |
| 0 | 1641 } else { |
| 1642 flag_name = name; | |
| 1643 } | |
| 1644 global->name = (jstring)JNIHandles::make_local(env, flag_name()); | |
| 1645 | |
| 1646 if (flag->is_bool()) { | |
| 1647 global->value.z = flag->get_bool() ? JNI_TRUE : JNI_FALSE; | |
| 1648 global->type = JMM_VMGLOBAL_TYPE_JBOOLEAN; | |
| 1649 } else if (flag->is_intx()) { | |
| 1650 global->value.j = (jlong)flag->get_intx(); | |
| 1651 global->type = JMM_VMGLOBAL_TYPE_JLONG; | |
| 1652 } else if (flag->is_uintx()) { | |
| 1653 global->value.j = (jlong)flag->get_uintx(); | |
| 1654 global->type = JMM_VMGLOBAL_TYPE_JLONG; | |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1655 } else if (flag->is_uint64_t()) { |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1656 global->value.j = (jlong)flag->get_uint64_t(); |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1657 global->type = JMM_VMGLOBAL_TYPE_JLONG; |
| 0 | 1658 } else if (flag->is_ccstr()) { |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1659 Handle str = java_lang_String::create_from_str(flag->get_ccstr(), CHECK_false); |
| 0 | 1660 global->value.l = (jobject)JNIHandles::make_local(env, str()); |
| 1661 global->type = JMM_VMGLOBAL_TYPE_JSTRING; | |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1662 } else { |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1663 global->type = JMM_VMGLOBAL_TYPE_UNKNOWN; |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1664 return false; |
| 0 | 1665 } |
| 1666 | |
| 1667 global->writeable = flag->is_writeable(); | |
| 1668 global->external = flag->is_external(); | |
| 1669 switch (flag->origin) { | |
| 1670 case DEFAULT: | |
| 1671 global->origin = JMM_VMGLOBAL_ORIGIN_DEFAULT; | |
| 1672 break; | |
| 1673 case COMMAND_LINE: | |
| 1674 global->origin = JMM_VMGLOBAL_ORIGIN_COMMAND_LINE; | |
| 1675 break; | |
| 1676 case ENVIRON_VAR: | |
| 1677 global->origin = JMM_VMGLOBAL_ORIGIN_ENVIRON_VAR; | |
| 1678 break; | |
| 1679 case CONFIG_FILE: | |
| 1680 global->origin = JMM_VMGLOBAL_ORIGIN_CONFIG_FILE; | |
| 1681 break; | |
| 1682 case MANAGEMENT: | |
| 1683 global->origin = JMM_VMGLOBAL_ORIGIN_MANAGEMENT; | |
| 1684 break; | |
| 1685 case ERGONOMIC: | |
| 1686 global->origin = JMM_VMGLOBAL_ORIGIN_ERGONOMIC; | |
| 1687 break; | |
| 1688 default: | |
| 1689 global->origin = JMM_VMGLOBAL_ORIGIN_OTHER; | |
| 1690 } | |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1691 |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1692 return true; |
| 0 | 1693 } |
| 1694 | |
| 1695 // Fill globals array of count length with jmmVMGlobal entries | |
| 1696 // specified by names. If names == NULL, fill globals array | |
| 1697 // with all Flags. Return value is number of entries | |
| 1698 // created in globals. | |
| 1699 // If a Flag with a given name in an array element does not | |
| 1700 // exist, globals[i].name will be set to NULL. | |
| 1701 JVM_ENTRY(jint, jmm_GetVMGlobals(JNIEnv *env, | |
| 1702 jobjectArray names, | |
| 1703 jmmVMGlobal *globals, | |
| 1704 jint count)) | |
| 1705 | |
| 1706 | |
| 1707 if (globals == NULL) { | |
| 1708 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1709 } | |
| 1710 | |
| 1711 ResourceMark rm(THREAD); | |
| 1712 | |
| 1713 if (names != NULL) { | |
| 1714 // return the requested globals | |
| 1715 objArrayOop ta = objArrayOop(JNIHandles::resolve_non_null(names)); | |
| 1716 objArrayHandle names_ah(THREAD, ta); | |
| 1717 // Make sure we have a String array | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1718 Klass* element_klass = objArrayKlass::cast(names_ah->klass())->element_klass(); |
| 1142 | 1719 if (element_klass != SystemDictionary::String_klass()) { |
| 0 | 1720 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), |
| 1721 "Array element type is not String class", 0); | |
| 1722 } | |
| 1723 | |
| 1724 int names_length = names_ah->length(); | |
| 1725 int num_entries = 0; | |
| 1726 for (int i = 0; i < names_length && i < count; i++) { | |
| 1727 oop s = names_ah->obj_at(i); | |
| 1728 if (s == NULL) { | |
| 1729 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1730 } | |
| 1731 | |
| 1732 Handle sh(THREAD, s); | |
| 1733 char* str = java_lang_String::as_utf8_string(s); | |
| 1734 Flag* flag = Flag::find_flag(str, strlen(str)); | |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1735 if (flag != NULL && |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1736 add_global_entry(env, sh, &globals[i], flag, THREAD)) { |
| 0 | 1737 num_entries++; |
| 1738 } else { | |
| 1739 globals[i].name = NULL; | |
| 1740 } | |
| 1741 } | |
| 1742 return num_entries; | |
| 1743 } else { | |
| 1744 // return all globals if names == NULL | |
| 1745 | |
| 1746 // last flag entry is always NULL, so subtract 1 | |
| 1747 int nFlags = (int) Flag::numFlags - 1; | |
| 1748 Handle null_h; | |
| 1749 int num_entries = 0; | |
| 1750 for (int i = 0; i < nFlags && num_entries < count; i++) { | |
| 1751 Flag* flag = &Flag::flags[i]; | |
| 350 | 1752 // Exclude the locked (diagnostic, experimental) flags |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1753 if ((flag->is_unlocked() || flag->is_unlocker()) && |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1754 add_global_entry(env, null_h, &globals[num_entries], flag, THREAD)) { |
| 0 | 1755 num_entries++; |
| 1756 } | |
| 1757 } | |
| 1758 return num_entries; | |
| 1759 } | |
| 1760 JVM_END | |
| 1761 | |
| 1762 JVM_ENTRY(void, jmm_SetVMGlobal(JNIEnv *env, jstring flag_name, jvalue new_value)) | |
| 1763 ResourceMark rm(THREAD); | |
| 1764 | |
| 1765 oop fn = JNIHandles::resolve_external_guard(flag_name); | |
| 1766 if (fn == NULL) { | |
| 1767 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 1768 "The flag name cannot be null."); | |
| 1769 } | |
| 1770 char* name = java_lang_String::as_utf8_string(fn); | |
| 1771 Flag* flag = Flag::find_flag(name, strlen(name)); | |
| 1772 if (flag == NULL) { | |
| 1773 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1774 "Flag does not exist."); | |
| 1775 } | |
| 1776 if (!flag->is_writeable()) { | |
| 1777 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1778 "This flag is not writeable."); | |
| 1779 } | |
| 1780 | |
| 1781 bool succeed; | |
| 1782 if (flag->is_bool()) { | |
| 1783 bool bvalue = (new_value.z == JNI_TRUE ? true : false); | |
| 1784 succeed = CommandLineFlags::boolAtPut(name, &bvalue, MANAGEMENT); | |
| 1785 } else if (flag->is_intx()) { | |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1786 intx ivalue = (intx)new_value.j; |
| 0 | 1787 succeed = CommandLineFlags::intxAtPut(name, &ivalue, MANAGEMENT); |
| 1788 } else if (flag->is_uintx()) { | |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1789 uintx uvalue = (uintx)new_value.j; |
| 0 | 1790 succeed = CommandLineFlags::uintxAtPut(name, &uvalue, MANAGEMENT); |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1791 } else if (flag->is_uint64_t()) { |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1792 uint64_t uvalue = (uint64_t)new_value.j; |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1793 succeed = CommandLineFlags::uint64_tAtPut(name, &uvalue, MANAGEMENT); |
| 0 | 1794 } else if (flag->is_ccstr()) { |
| 1795 oop str = JNIHandles::resolve_external_guard(new_value.l); | |
| 1796 if (str == NULL) { | |
| 1797 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 1798 } | |
| 1799 ccstr svalue = java_lang_String::as_utf8_string(str); | |
| 1800 succeed = CommandLineFlags::ccstrAtPut(name, &svalue, MANAGEMENT); | |
| 1801 } | |
| 1802 assert(succeed, "Setting flag should succeed"); | |
| 1803 JVM_END | |
| 1804 | |
| 1805 class ThreadTimesClosure: public ThreadClosure { | |
| 1806 private: | |
| 1807 objArrayOop _names; | |
| 1808 typeArrayOop _times; | |
| 1809 int _names_len; | |
| 1810 int _times_len; | |
| 1811 int _count; | |
| 1812 | |
| 1813 public: | |
| 1814 ThreadTimesClosure(objArrayOop names, typeArrayOop times); | |
| 1815 virtual void do_thread(Thread* thread); | |
| 1816 int count() { return _count; } | |
| 1817 }; | |
| 1818 | |
| 1819 ThreadTimesClosure::ThreadTimesClosure(objArrayOop names, | |
| 1820 typeArrayOop times) { | |
| 1821 assert(names != NULL, "names was NULL"); | |
| 1822 assert(times != NULL, "times was NULL"); | |
| 1823 _names = names; | |
| 1824 _names_len = names->length(); | |
| 1825 _times = times; | |
| 1826 _times_len = times->length(); | |
| 1827 _count = 0; | |
| 1828 } | |
| 1829 | |
| 1830 void ThreadTimesClosure::do_thread(Thread* thread) { | |
| 1831 Handle s; | |
| 1832 assert(thread != NULL, "thread was NULL"); | |
| 1833 | |
| 1834 // exclude externally visible JavaThreads | |
| 1835 if (thread->is_Java_thread() && !thread->is_hidden_from_external_view()) { | |
| 1836 return; | |
| 1837 } | |
| 1838 | |
| 1839 if (_count >= _names_len || _count >= _times_len) { | |
| 1840 // skip if the result array is not big enough | |
| 1841 return; | |
| 1842 } | |
| 1843 | |
| 1844 EXCEPTION_MARK; | |
| 1845 | |
| 1846 assert(thread->name() != NULL, "All threads should have a name"); | |
| 1847 s = java_lang_String::create_from_str(thread->name(), CHECK); | |
| 1848 _names->obj_at_put(_count, s()); | |
| 1849 | |
| 1850 _times->long_at_put(_count, os::is_thread_cpu_time_supported() ? | |
| 1851 os::thread_cpu_time(thread) : -1); | |
| 1852 _count++; | |
| 1853 } | |
| 1854 | |
| 1855 // Fills names with VM internal thread names and times with the corresponding | |
| 1856 // CPU times. If names or times is NULL, a NullPointerException is thrown. | |
| 1857 // If the element type of names is not String, an IllegalArgumentException is | |
| 1858 // thrown. | |
| 1859 // If an array is not large enough to hold all the entries, only the entries | |
| 1860 // that fit will be returned. Return value is the number of VM internal | |
| 1861 // threads entries. | |
| 1862 JVM_ENTRY(jint, jmm_GetInternalThreadTimes(JNIEnv *env, | |
| 1863 jobjectArray names, | |
| 1864 jlongArray times)) | |
| 1865 if (names == NULL || times == NULL) { | |
| 1866 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1867 } | |
| 1868 objArrayOop na = objArrayOop(JNIHandles::resolve_non_null(names)); | |
| 1869 objArrayHandle names_ah(THREAD, na); | |
| 1870 | |
| 1871 // Make sure we have a String array | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1872 Klass* element_klass = objArrayKlass::cast(names_ah->klass())->element_klass(); |
| 1142 | 1873 if (element_klass != SystemDictionary::String_klass()) { |
| 0 | 1874 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), |
| 1875 "Array element type is not String class", 0); | |
| 1876 } | |
| 1877 | |
| 1878 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(times)); | |
| 1879 typeArrayHandle times_ah(THREAD, ta); | |
| 1880 | |
| 1881 ThreadTimesClosure ttc(names_ah(), times_ah()); | |
| 1882 { | |
| 1883 MutexLockerEx ml(Threads_lock); | |
| 1884 Threads::threads_do(&ttc); | |
| 1885 } | |
| 1886 | |
| 1887 return ttc.count(); | |
| 1888 JVM_END | |
| 1889 | |
| 1890 static Handle find_deadlocks(bool object_monitors_only, TRAPS) { | |
| 1891 ResourceMark rm(THREAD); | |
| 1892 | |
| 1893 VM_FindDeadlocks op(!object_monitors_only /* also check concurrent locks? */); | |
| 1894 VMThread::execute(&op); | |
| 1895 | |
| 1896 DeadlockCycle* deadlocks = op.result(); | |
| 1897 if (deadlocks == NULL) { | |
| 1898 // no deadlock found and return | |
| 1899 return Handle(); | |
| 1900 } | |
| 1901 | |
| 1902 int num_threads = 0; | |
| 1903 DeadlockCycle* cycle; | |
| 1904 for (cycle = deadlocks; cycle != NULL; cycle = cycle->next()) { | |
| 1905 num_threads += cycle->num_threads(); | |
| 1906 } | |
| 1907 | |
| 1142 | 1908 objArrayOop r = oopFactory::new_objArray(SystemDictionary::Thread_klass(), num_threads, CHECK_NH); |
| 0 | 1909 objArrayHandle threads_ah(THREAD, r); |
| 1910 | |
| 1911 int index = 0; | |
| 1912 for (cycle = deadlocks; cycle != NULL; cycle = cycle->next()) { | |
| 1913 GrowableArray<JavaThread*>* deadlock_threads = cycle->threads(); | |
| 1914 int len = deadlock_threads->length(); | |
| 1915 for (int i = 0; i < len; i++) { | |
| 1916 threads_ah->obj_at_put(index, deadlock_threads->at(i)->threadObj()); | |
| 1917 index++; | |
| 1918 } | |
| 1919 } | |
| 1920 return threads_ah; | |
| 1921 } | |
| 1922 | |
| 1923 // Finds cycles of threads that are deadlocked involved in object monitors | |
| 1924 // and JSR-166 synchronizers. | |
| 1925 // Returns an array of Thread objects which are in deadlock, if any. | |
| 1926 // Otherwise, returns NULL. | |
| 1927 // | |
| 1928 // Input parameter: | |
| 1929 // object_monitors_only - if true, only check object monitors | |
| 1930 // | |
| 1931 JVM_ENTRY(jobjectArray, jmm_FindDeadlockedThreads(JNIEnv *env, jboolean object_monitors_only)) | |
| 1932 Handle result = find_deadlocks(object_monitors_only != 0, CHECK_0); | |
| 1933 return (jobjectArray) JNIHandles::make_local(env, result()); | |
| 1934 JVM_END | |
| 1935 | |
| 1936 // Finds cycles of threads that are deadlocked on monitor locks | |
| 1937 // Returns an array of Thread objects which are in deadlock, if any. | |
| 1938 // Otherwise, returns NULL. | |
| 1939 JVM_ENTRY(jobjectArray, jmm_FindMonitorDeadlockedThreads(JNIEnv *env)) | |
| 1940 Handle result = find_deadlocks(true, CHECK_0); | |
| 1941 return (jobjectArray) JNIHandles::make_local(env, result()); | |
| 1942 JVM_END | |
| 1943 | |
| 1944 // Gets the information about GC extension attributes including | |
| 1945 // the name of the attribute, its type, and a short description. | |
| 1946 // | |
| 1947 // Input parameters: | |
| 1948 // mgr - GC memory manager | |
| 1949 // info - caller allocated array of jmmExtAttributeInfo | |
| 1950 // count - number of elements of the info array | |
| 1951 // | |
| 1952 // Returns the number of GC extension attributes filled in the info array; or | |
| 1953 // -1 if info is not big enough | |
| 1954 // | |
| 1955 JVM_ENTRY(jint, jmm_GetGCExtAttributeInfo(JNIEnv *env, jobject mgr, jmmExtAttributeInfo* info, jint count)) | |
| 1956 // All GC memory managers have 1 attribute (number of GC threads) | |
| 1957 if (count == 0) { | |
| 1958 return 0; | |
| 1959 } | |
| 1960 | |
| 1961 if (info == NULL) { | |
| 1962 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1963 } | |
| 1964 | |
| 1965 info[0].name = "GcThreadCount"; | |
| 1966 info[0].type = 'I'; | |
| 1967 info[0].description = "Number of GC threads"; | |
| 1968 return 1; | |
| 1969 JVM_END | |
| 1970 | |
| 1971 // verify the given array is an array of java/lang/management/MemoryUsage objects | |
| 1972 // of a given length and return the objArrayOop | |
| 1973 static objArrayOop get_memory_usage_objArray(jobjectArray array, int length, TRAPS) { | |
| 1974 if (array == NULL) { | |
| 1975 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1976 } | |
| 1977 | |
| 1978 objArrayOop oa = objArrayOop(JNIHandles::resolve_non_null(array)); | |
| 1979 objArrayHandle array_h(THREAD, oa); | |
| 1980 | |
| 1981 // array must be of the given length | |
| 1982 if (length != array_h->length()) { | |
| 1983 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1984 "The length of the given MemoryUsage array does not match the number of memory pools.", 0); | |
| 1985 } | |
| 1986 | |
| 1987 // check if the element of array is of type MemoryUsage class | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1988 Klass* usage_klass = Management::java_lang_management_MemoryUsage_klass(CHECK_0); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1989 Klass* element_klass = objArrayKlass::cast(array_h->klass())->element_klass(); |
| 0 | 1990 if (element_klass != usage_klass) { |
| 1991 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1992 "The element type is not MemoryUsage class", 0); | |
| 1993 } | |
| 1994 | |
| 1995 return array_h(); | |
| 1996 } | |
| 1997 | |
| 1998 // Gets the statistics of the last GC of a given GC memory manager. | |
| 1999 // Input parameters: | |
| 2000 // obj - GarbageCollectorMXBean object | |
| 2001 // gc_stat - caller allocated jmmGCStat where: | |
| 2002 // a. before_gc_usage - array of MemoryUsage objects | |
| 2003 // b. after_gc_usage - array of MemoryUsage objects | |
| 2004 // c. gc_ext_attributes_values_size is set to the | |
| 2005 // gc_ext_attribute_values array allocated | |
| 2006 // d. gc_ext_attribute_values is a caller allocated array of jvalue. | |
| 2007 // | |
| 2008 // On return, | |
| 2009 // gc_index == 0 indicates no GC statistics available | |
| 2010 // | |
| 2011 // before_gc_usage and after_gc_usage - filled with per memory pool | |
| 2012 // before and after GC usage in the same order as the memory pools | |
| 2013 // returned by GetMemoryPools for a given GC memory manager. | |
| 2014 // num_gc_ext_attributes indicates the number of elements in | |
| 2015 // the gc_ext_attribute_values array is filled; or | |
| 2016 // -1 if the gc_ext_attributes_values array is not big enough | |
| 2017 // | |
| 2018 JVM_ENTRY(void, jmm_GetLastGCStat(JNIEnv *env, jobject obj, jmmGCStat *gc_stat)) | |
| 2019 ResourceMark rm(THREAD); | |
| 2020 | |
| 2021 if (gc_stat->gc_ext_attribute_values_size > 0 && gc_stat->gc_ext_attribute_values == NULL) { | |
| 2022 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 2023 } | |
| 2024 | |
| 2025 // Get the GCMemoryManager | |
| 2026 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK); | |
| 2027 | |
| 2028 // Make a copy of the last GC statistics | |
| 2029 // GC may occur while constructing the last GC information | |
| 2030 int num_pools = MemoryService::num_memory_pools(); | |
|
4844
bf864f701a4a
7066129: GarbageCollectorMXBean#getLastGcInfo leaks native memory
dsamersoff
parents:
4773
diff
changeset
|
2031 GCStatInfo stat(num_pools); |
|
bf864f701a4a
7066129: GarbageCollectorMXBean#getLastGcInfo leaks native memory
dsamersoff
parents:
4773
diff
changeset
|
2032 if (mgr->get_last_gc_stat(&stat) == 0) { |
|
1703
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
2033 gc_stat->gc_index = 0; |
|
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
2034 return; |
|
f6f3eef8a521
6581734: CMS Old Gen's collection usage is zero after GC which is incorrect
kevinw
parents:
1552
diff
changeset
|
2035 } |
| 0 | 2036 |
|
4844
bf864f701a4a
7066129: GarbageCollectorMXBean#getLastGcInfo leaks native memory
dsamersoff
parents:
4773
diff
changeset
|
2037 gc_stat->gc_index = stat.gc_index(); |
|
bf864f701a4a
7066129: GarbageCollectorMXBean#getLastGcInfo leaks native memory
dsamersoff
parents:
4773
diff
changeset
|
2038 gc_stat->start_time = Management::ticks_to_ms(stat.start_time()); |
|
bf864f701a4a
7066129: GarbageCollectorMXBean#getLastGcInfo leaks native memory
dsamersoff
parents:
4773
diff
changeset
|
2039 gc_stat->end_time = Management::ticks_to_ms(stat.end_time()); |
| 0 | 2040 |
| 2041 // Current implementation does not have GC extension attributes | |
| 2042 gc_stat->num_gc_ext_attributes = 0; | |
| 2043 | |
| 2044 // Fill the arrays of MemoryUsage objects with before and after GC | |
| 2045 // per pool memory usage | |
| 2046 objArrayOop bu = get_memory_usage_objArray(gc_stat->usage_before_gc, | |
| 2047 num_pools, | |
| 2048 CHECK); | |
| 2049 objArrayHandle usage_before_gc_ah(THREAD, bu); | |
| 2050 | |
| 2051 objArrayOop au = get_memory_usage_objArray(gc_stat->usage_after_gc, | |
| 2052 num_pools, | |
| 2053 CHECK); | |
| 2054 objArrayHandle usage_after_gc_ah(THREAD, au); | |
| 2055 | |
| 2056 for (int i = 0; i < num_pools; i++) { | |
|
4844
bf864f701a4a
7066129: GarbageCollectorMXBean#getLastGcInfo leaks native memory
dsamersoff
parents:
4773
diff
changeset
|
2057 Handle before_usage = MemoryService::create_MemoryUsage_obj(stat.before_gc_usage_for_pool(i), CHECK); |
| 0 | 2058 Handle after_usage; |
| 2059 | |
|
4844
bf864f701a4a
7066129: GarbageCollectorMXBean#getLastGcInfo leaks native memory
dsamersoff
parents:
4773
diff
changeset
|
2060 MemoryUsage u = stat.after_gc_usage_for_pool(i); |
| 0 | 2061 if (u.max_size() == 0 && u.used() > 0) { |
| 2062 // If max size == 0, this pool is a survivor space. | |
| 2063 // Set max size = -1 since the pools will be swapped after GC. | |
| 2064 MemoryUsage usage(u.init_size(), u.used(), u.committed(), (size_t)-1); | |
| 2065 after_usage = MemoryService::create_MemoryUsage_obj(usage, CHECK); | |
| 2066 } else { | |
|
4844
bf864f701a4a
7066129: GarbageCollectorMXBean#getLastGcInfo leaks native memory
dsamersoff
parents:
4773
diff
changeset
|
2067 after_usage = MemoryService::create_MemoryUsage_obj(stat.after_gc_usage_for_pool(i), CHECK); |
| 0 | 2068 } |
| 2069 usage_before_gc_ah->obj_at_put(i, before_usage()); | |
| 2070 usage_after_gc_ah->obj_at_put(i, after_usage()); | |
| 2071 } | |
| 2072 | |
| 2073 if (gc_stat->gc_ext_attribute_values_size > 0) { | |
| 2074 // Current implementation only has 1 attribute (number of GC threads) | |
| 2075 // The type is 'I' | |
| 2076 gc_stat->gc_ext_attribute_values[0].i = mgr->num_gc_threads(); | |
| 2077 } | |
| 2078 JVM_END | |
| 2079 | |
|
3356
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
2080 JVM_ENTRY(void, jmm_SetGCNotificationEnabled(JNIEnv *env, jobject obj, jboolean enabled)) |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
2081 ResourceMark rm(THREAD); |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
2082 // Get the GCMemoryManager |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
2083 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK); |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
2084 mgr->set_notification_enabled(enabled?true:false); |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
2085 JVM_END |
|
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
2086 |
| 0 | 2087 // Dump heap - Returns 0 if succeeds. |
| 2088 JVM_ENTRY(jint, jmm_DumpHeap0(JNIEnv *env, jstring outputfile, jboolean live)) | |
| 2089 #ifndef SERVICES_KERNEL | |
| 2090 ResourceMark rm(THREAD); | |
| 2091 oop on = JNIHandles::resolve_external_guard(outputfile); | |
| 2092 if (on == NULL) { | |
| 2093 THROW_MSG_(vmSymbols::java_lang_NullPointerException(), | |
| 2094 "Output file name cannot be null.", -1); | |
| 2095 } | |
| 2096 char* name = java_lang_String::as_utf8_string(on); | |
| 2097 if (name == NULL) { | |
| 2098 THROW_MSG_(vmSymbols::java_lang_NullPointerException(), | |
| 2099 "Output file name cannot be null.", -1); | |
| 2100 } | |
| 2101 HeapDumper dumper(live ? true : false); | |
| 2102 if (dumper.dump(name) != 0) { | |
| 2103 const char* errmsg = dumper.error_as_C_string(); | |
| 2104 THROW_MSG_(vmSymbols::java_io_IOException(), errmsg, -1); | |
| 2105 } | |
| 2106 return 0; | |
| 2107 #else // SERVICES_KERNEL | |
| 2108 return -1; | |
| 2109 #endif // SERVICES_KERNEL | |
| 2110 JVM_END | |
| 2111 | |
| 4133 | 2112 JVM_ENTRY(jobjectArray, jmm_GetDiagnosticCommands(JNIEnv *env)) |
| 2113 ResourceMark rm(THREAD); | |
| 2114 GrowableArray<const char *>* dcmd_list = DCmdFactory::DCmd_list(); | |
| 2115 objArrayOop cmd_array_oop = oopFactory::new_objArray(SystemDictionary::String_klass(), | |
| 2116 dcmd_list->length(), CHECK_NULL); | |
| 2117 objArrayHandle cmd_array(THREAD, cmd_array_oop); | |
| 2118 for (int i = 0; i < dcmd_list->length(); i++) { | |
| 2119 oop cmd_name = java_lang_String::create_oop_from_str(dcmd_list->at(i), CHECK_NULL); | |
| 2120 cmd_array->obj_at_put(i, cmd_name); | |
| 2121 } | |
| 2122 return (jobjectArray) JNIHandles::make_local(env, cmd_array()); | |
| 2123 JVM_END | |
| 2124 | |
| 2125 JVM_ENTRY(void, jmm_GetDiagnosticCommandInfo(JNIEnv *env, jobjectArray cmds, | |
| 2126 dcmdInfo* infoArray)) | |
| 2127 if (cmds == NULL || infoArray == NULL) { | |
| 2128 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 2129 } | |
| 2130 | |
| 2131 ResourceMark rm(THREAD); | |
| 2132 | |
| 2133 objArrayOop ca = objArrayOop(JNIHandles::resolve_non_null(cmds)); | |
| 2134 objArrayHandle cmds_ah(THREAD, ca); | |
| 2135 | |
| 2136 // Make sure we have a String array | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
2137 Klass* element_klass = objArrayKlass::cast(cmds_ah->klass())->element_klass(); |
| 4133 | 2138 if (element_klass != SystemDictionary::String_klass()) { |
| 2139 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2140 "Array element type is not String class"); | |
| 2141 } | |
| 2142 | |
| 2143 GrowableArray<DCmdInfo *>* info_list = DCmdFactory::DCmdInfo_list(); | |
| 2144 | |
| 2145 int num_cmds = cmds_ah->length(); | |
| 2146 for (int i = 0; i < num_cmds; i++) { | |
| 2147 oop cmd = cmds_ah->obj_at(i); | |
| 2148 if (cmd == NULL) { | |
| 2149 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2150 "Command name cannot be null."); | |
| 2151 } | |
| 2152 char* cmd_name = java_lang_String::as_utf8_string(cmd); | |
| 2153 if (cmd_name == NULL) { | |
| 2154 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2155 "Command name cannot be null."); | |
| 2156 } | |
| 2157 int pos = info_list->find((void*)cmd_name,DCmdInfo::by_name); | |
| 2158 if (pos == -1) { | |
| 2159 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2160 "Unknown diagnostic command"); | |
| 2161 } | |
| 2162 DCmdInfo* info = info_list->at(pos); | |
| 2163 infoArray[i].name = info->name(); | |
| 2164 infoArray[i].description = info->description(); | |
| 2165 infoArray[i].impact = info->impact(); | |
| 2166 infoArray[i].num_arguments = info->num_arguments(); | |
| 2167 infoArray[i].enabled = info->is_enabled(); | |
| 2168 } | |
| 2169 JVM_END | |
| 2170 | |
| 2171 JVM_ENTRY(void, jmm_GetDiagnosticCommandArgumentsInfo(JNIEnv *env, | |
| 2172 jstring command, dcmdArgInfo* infoArray)) | |
| 2173 ResourceMark rm(THREAD); | |
| 2174 oop cmd = JNIHandles::resolve_external_guard(command); | |
| 2175 if (cmd == NULL) { | |
| 2176 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2177 "Command line cannot be null."); | |
| 2178 } | |
| 2179 char* cmd_name = java_lang_String::as_utf8_string(cmd); | |
| 2180 if (cmd_name == NULL) { | |
| 2181 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2182 "Command line content cannot be null."); | |
| 2183 } | |
| 2184 DCmd* dcmd = NULL; | |
| 2185 DCmdFactory*factory = DCmdFactory::factory(cmd_name, strlen(cmd_name)); | |
| 2186 if (factory != NULL) { | |
| 2187 dcmd = factory->create_resource_instance(NULL); | |
| 2188 } | |
| 2189 if (dcmd == NULL) { | |
| 2190 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2191 "Unknown diagnostic command"); | |
| 2192 } | |
| 2193 DCmdMark mark(dcmd); | |
| 2194 GrowableArray<DCmdArgumentInfo*>* array = dcmd->argument_info_array(); | |
| 2195 if (array->length() == 0) { | |
| 2196 return; | |
| 2197 } | |
| 2198 for (int i = 0; i < array->length(); i++) { | |
| 2199 infoArray[i].name = array->at(i)->name(); | |
| 2200 infoArray[i].description = array->at(i)->description(); | |
| 2201 infoArray[i].type = array->at(i)->type(); | |
| 2202 infoArray[i].default_string = array->at(i)->default_string(); | |
| 2203 infoArray[i].mandatory = array->at(i)->is_mandatory(); | |
| 2204 infoArray[i].option = array->at(i)->is_option(); | |
| 2205 infoArray[i].position = array->at(i)->position(); | |
| 2206 } | |
| 2207 return; | |
| 2208 JVM_END | |
| 2209 | |
| 2210 JVM_ENTRY(jstring, jmm_ExecuteDiagnosticCommand(JNIEnv *env, jstring commandline)) | |
| 2211 ResourceMark rm(THREAD); | |
| 2212 oop cmd = JNIHandles::resolve_external_guard(commandline); | |
| 2213 if (cmd == NULL) { | |
| 2214 THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(), | |
| 2215 "Command line cannot be null."); | |
| 2216 } | |
| 2217 char* cmdline = java_lang_String::as_utf8_string(cmd); | |
| 2218 if (cmdline == NULL) { | |
| 2219 THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(), | |
| 2220 "Command line content cannot be null."); | |
| 2221 } | |
| 2222 bufferedStream output; | |
| 2223 DCmd::parse_and_execute(&output, cmdline, ' ', CHECK_NULL); | |
| 2224 oop result = java_lang_String::create_oop_from_str(output.as_string(), CHECK_NULL); | |
| 2225 return (jstring) JNIHandles::make_local(env, result); | |
| 2226 JVM_END | |
| 2227 | |
| 0 | 2228 jlong Management::ticks_to_ms(jlong ticks) { |
| 2229 assert(os::elapsed_frequency() > 0, "Must be non-zero"); | |
| 2230 return (jlong)(((double)ticks / (double)os::elapsed_frequency()) | |
| 2231 * (double)1000.0); | |
| 2232 } | |
| 2233 | |
| 2234 const struct jmmInterface_1_ jmm_interface = { | |
| 2235 NULL, | |
| 2236 NULL, | |
| 2237 jmm_GetVersion, | |
| 2238 jmm_GetOptionalSupport, | |
| 2239 jmm_GetInputArguments, | |
| 2240 jmm_GetThreadInfo, | |
| 2241 jmm_GetInputArgumentArray, | |
| 2242 jmm_GetMemoryPools, | |
| 2243 jmm_GetMemoryManagers, | |
| 2244 jmm_GetMemoryPoolUsage, | |
| 2245 jmm_GetPeakMemoryPoolUsage, | |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
2246 jmm_GetThreadAllocatedMemory, |
| 0 | 2247 jmm_GetMemoryUsage, |
| 2248 jmm_GetLongAttribute, | |
| 2249 jmm_GetBoolAttribute, | |
| 2250 jmm_SetBoolAttribute, | |
| 2251 jmm_GetLongAttributes, | |
| 2252 jmm_FindMonitorDeadlockedThreads, | |
| 2253 jmm_GetThreadCpuTime, | |
| 2254 jmm_GetVMGlobalNames, | |
| 2255 jmm_GetVMGlobals, | |
| 2256 jmm_GetInternalThreadTimes, | |
| 2257 jmm_ResetStatistic, | |
| 2258 jmm_SetPoolSensor, | |
| 2259 jmm_SetPoolThreshold, | |
| 2260 jmm_GetPoolCollectionUsage, | |
| 2261 jmm_GetGCExtAttributeInfo, | |
| 2262 jmm_GetLastGCStat, | |
| 2263 jmm_GetThreadCpuTimeWithKind, | |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
2264 jmm_GetThreadCpuTimesWithKind, |
| 0 | 2265 jmm_DumpHeap0, |
| 2266 jmm_FindDeadlockedThreads, | |
| 2267 jmm_SetVMGlobal, | |
| 2268 NULL, | |
|
3356
78542e2b5e35
7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
fparain
parents:
2267
diff
changeset
|
2269 jmm_DumpThreads, |
| 4133 | 2270 jmm_SetGCNotificationEnabled, |
| 2271 jmm_GetDiagnosticCommands, | |
| 2272 jmm_GetDiagnosticCommandInfo, | |
| 2273 jmm_GetDiagnosticCommandArgumentsInfo, | |
| 2274 jmm_ExecuteDiagnosticCommand | |
| 0 | 2275 }; |
| 2276 | |
| 2277 void* Management::get_jmm_interface(int version) { | |
| 2278 if (version == JMM_VERSION_1_0) { | |
| 2279 return (void*) &jmm_interface; | |
| 2280 } | |
| 2281 return NULL; | |
| 2282 } |