Mercurial > hg > truffle
annotate src/share/vm/services/management.cpp @ 20553:417e3b8d04c5
8059100: SIGSEGV VirtualMemoryTracker::remove_released_region
Summary: Disallow increasing native memory tracking level
Reviewed-by: hseigel, ctornqvi, gtriantafill
| author | coleenp |
|---|---|
| date | Fri, 10 Oct 2014 19:36:12 +0000 |
| parents | 966601b12d4f |
| children | 7848fc12602b |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2014, 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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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" | |
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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" | |
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41 #include "runtime/serviceThread.hpp" |
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42 #include "runtime/thread.inline.hpp" |
| 1972 | 43 #include "services/classLoadingService.hpp" |
| 4133 | 44 #include "services/diagnosticCommand.hpp" |
| 45 #include "services/diagnosticFramework.hpp" | |
| 1972 | 46 #include "services/heapDumper.hpp" |
| 4133 | 47 #include "services/jmm.h" |
| 1972 | 48 #include "services/lowMemoryDetector.hpp" |
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49 #include "services/gcNotifier.hpp" |
| 6197 | 50 #include "services/nmtDCmd.hpp" |
| 1972 | 51 #include "services/management.hpp" |
| 52 #include "services/memoryManager.hpp" | |
| 53 #include "services/memoryPool.hpp" | |
| 54 #include "services/memoryService.hpp" | |
| 55 #include "services/runtimeService.hpp" | |
| 56 #include "services/threadService.hpp" | |
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57 #include "utilities/macros.hpp" |
| 0 | 58 |
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59 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
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60 |
| 0 | 61 PerfVariable* Management::_begin_vm_creation_time = NULL; |
| 62 PerfVariable* Management::_end_vm_creation_time = NULL; | |
| 63 PerfVariable* Management::_vm_init_done_time = NULL; | |
| 64 | |
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65 Klass* Management::_sensor_klass = NULL; |
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66 Klass* Management::_threadInfo_klass = NULL; |
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67 Klass* Management::_memoryUsage_klass = NULL; |
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68 Klass* Management::_memoryPoolMXBean_klass = NULL; |
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69 Klass* Management::_memoryManagerMXBean_klass = NULL; |
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70 Klass* Management::_garbageCollectorMXBean_klass = NULL; |
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71 Klass* Management::_managementFactory_klass = NULL; |
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72 Klass* Management::_garbageCollectorImpl_klass = NULL; |
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73 Klass* Management::_gcInfo_klass = NULL; |
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74 Klass* Management::_diagnosticCommandImpl_klass = NULL; |
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75 Klass* Management::_managementFactoryHelper_klass = NULL; |
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76 |
| 0 | 77 |
| 78 jmmOptionalSupport Management::_optional_support = {0}; | |
| 79 TimeStamp Management::_stamp; | |
| 80 | |
| 81 void management_init() { | |
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82 #if INCLUDE_MANAGEMENT |
| 0 | 83 Management::init(); |
| 84 ThreadService::init(); | |
| 85 RuntimeService::init(); | |
| 86 ClassLoadingService::init(); | |
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87 #else |
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88 ThreadService::init(); |
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89 // Make sure the VM version is initialized |
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90 // This is normally called by RuntimeService::init(). |
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91 // Since that is conditionalized out, we need to call it here. |
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92 Abstract_VM_Version::initialize(); |
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93 #endif // INCLUDE_MANAGEMENT |
| 0 | 94 } |
| 95 | |
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96 #if INCLUDE_MANAGEMENT |
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97 |
| 0 | 98 void Management::init() { |
| 99 EXCEPTION_MARK; | |
| 100 | |
| 101 // These counters are for java.lang.management API support. | |
| 102 // They are created even if -XX:-UsePerfData is set and in | |
| 103 // that case, they will be allocated on C heap. | |
| 104 | |
| 105 _begin_vm_creation_time = | |
| 106 PerfDataManager::create_variable(SUN_RT, "createVmBeginTime", | |
| 107 PerfData::U_None, CHECK); | |
| 108 | |
| 109 _end_vm_creation_time = | |
| 110 PerfDataManager::create_variable(SUN_RT, "createVmEndTime", | |
| 111 PerfData::U_None, CHECK); | |
| 112 | |
| 113 _vm_init_done_time = | |
| 114 PerfDataManager::create_variable(SUN_RT, "vmInitDoneTime", | |
| 115 PerfData::U_None, CHECK); | |
| 116 | |
| 117 // Initialize optional support | |
| 118 _optional_support.isLowMemoryDetectionSupported = 1; | |
| 119 _optional_support.isCompilationTimeMonitoringSupported = 1; | |
| 120 _optional_support.isThreadContentionMonitoringSupported = 1; | |
| 121 | |
| 122 if (os::is_thread_cpu_time_supported()) { | |
| 123 _optional_support.isCurrentThreadCpuTimeSupported = 1; | |
| 124 _optional_support.isOtherThreadCpuTimeSupported = 1; | |
| 125 } else { | |
| 126 _optional_support.isCurrentThreadCpuTimeSupported = 0; | |
| 127 _optional_support.isOtherThreadCpuTimeSupported = 0; | |
| 128 } | |
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129 |
| 0 | 130 _optional_support.isBootClassPathSupported = 1; |
| 131 _optional_support.isObjectMonitorUsageSupported = 1; | |
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132 #if INCLUDE_SERVICES |
| 0 | 133 // This depends on the heap inspector |
| 134 _optional_support.isSynchronizerUsageSupported = 1; | |
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135 #endif // INCLUDE_SERVICES |
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136 _optional_support.isThreadAllocatedMemorySupported = 1; |
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137 _optional_support.isRemoteDiagnosticCommandsSupported = 1; |
| 4133 | 138 |
| 4773 | 139 // Registration of the diagnostic commands |
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140 DCmdRegistrant::register_dcmds(); |
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141 DCmdRegistrant::register_dcmds_ext(); |
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142 uint32_t full_export = DCmd_Source_Internal | DCmd_Source_AttachAPI |
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143 | DCmd_Source_MBean; |
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144 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<NMTDCmd>(full_export, true, false)); |
| 0 | 145 } |
| 146 | |
| 147 void Management::initialize(TRAPS) { | |
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148 // Start the service thread |
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149 ServiceThread::initialize(); |
| 0 | 150 |
| 151 if (ManagementServer) { | |
| 152 ResourceMark rm(THREAD); | |
| 153 HandleMark hm(THREAD); | |
| 154 | |
| 155 // Load and initialize the sun.management.Agent class | |
| 156 // invoke startAgent method to start the management server | |
| 157 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); | |
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158 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), |
| 0 | 159 loader, |
| 160 Handle(), | |
| 161 true, | |
| 162 CHECK); | |
| 163 instanceKlassHandle ik (THREAD, k); | |
| 164 | |
| 165 JavaValue result(T_VOID); | |
| 166 JavaCalls::call_static(&result, | |
| 167 ik, | |
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168 vmSymbols::startAgent_name(), |
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169 vmSymbols::void_method_signature(), |
| 0 | 170 CHECK); |
| 171 } | |
| 172 } | |
| 173 | |
| 174 void Management::get_optional_support(jmmOptionalSupport* support) { | |
| 175 memcpy(support, &_optional_support, sizeof(jmmOptionalSupport)); | |
| 176 } | |
| 177 | |
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178 Klass* Management::load_and_initialize_klass(Symbol* sh, TRAPS) { |
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179 Klass* k = SystemDictionary::resolve_or_fail(sh, true, CHECK_NULL); |
| 0 | 180 instanceKlassHandle ik (THREAD, k); |
| 181 if (ik->should_be_initialized()) { | |
| 182 ik->initialize(CHECK_NULL); | |
| 183 } | |
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184 // If these classes change to not be owned by the boot loader, they need |
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185 // to be walked to keep their class loader alive in oops_do. |
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186 assert(ik->class_loader() == NULL, "need to follow in oops_do"); |
| 0 | 187 return ik(); |
| 188 } | |
| 189 | |
| 190 void Management::record_vm_startup_time(jlong begin, jlong duration) { | |
| 191 // if the performance counter is not initialized, | |
| 192 // then vm initialization failed; simply return. | |
| 193 if (_begin_vm_creation_time == NULL) return; | |
| 194 | |
| 195 _begin_vm_creation_time->set_value(begin); | |
| 196 _end_vm_creation_time->set_value(begin + duration); | |
| 197 PerfMemory::set_accessible(true); | |
| 198 } | |
| 199 | |
| 200 jlong Management::timestamp() { | |
| 201 TimeStamp t; | |
| 202 t.update(); | |
| 203 return t.ticks() - _stamp.ticks(); | |
| 204 } | |
| 205 | |
| 206 void Management::oops_do(OopClosure* f) { | |
| 207 MemoryService::oops_do(f); | |
| 208 ThreadService::oops_do(f); | |
| 209 } | |
| 210 | |
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211 Klass* Management::java_lang_management_ThreadInfo_klass(TRAPS) { |
| 0 | 212 if (_threadInfo_klass == NULL) { |
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213 _threadInfo_klass = load_and_initialize_klass(vmSymbols::java_lang_management_ThreadInfo(), CHECK_NULL); |
| 0 | 214 } |
| 215 return _threadInfo_klass; | |
| 216 } | |
| 217 | |
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218 Klass* Management::java_lang_management_MemoryUsage_klass(TRAPS) { |
| 0 | 219 if (_memoryUsage_klass == NULL) { |
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220 _memoryUsage_klass = load_and_initialize_klass(vmSymbols::java_lang_management_MemoryUsage(), CHECK_NULL); |
| 0 | 221 } |
| 222 return _memoryUsage_klass; | |
| 223 } | |
| 224 | |
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225 Klass* Management::java_lang_management_MemoryPoolMXBean_klass(TRAPS) { |
| 0 | 226 if (_memoryPoolMXBean_klass == NULL) { |
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227 _memoryPoolMXBean_klass = load_and_initialize_klass(vmSymbols::java_lang_management_MemoryPoolMXBean(), CHECK_NULL); |
| 0 | 228 } |
| 229 return _memoryPoolMXBean_klass; | |
| 230 } | |
| 231 | |
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232 Klass* Management::java_lang_management_MemoryManagerMXBean_klass(TRAPS) { |
| 0 | 233 if (_memoryManagerMXBean_klass == NULL) { |
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234 _memoryManagerMXBean_klass = load_and_initialize_klass(vmSymbols::java_lang_management_MemoryManagerMXBean(), CHECK_NULL); |
| 0 | 235 } |
| 236 return _memoryManagerMXBean_klass; | |
| 237 } | |
| 238 | |
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239 Klass* Management::java_lang_management_GarbageCollectorMXBean_klass(TRAPS) { |
| 0 | 240 if (_garbageCollectorMXBean_klass == NULL) { |
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241 _garbageCollectorMXBean_klass = load_and_initialize_klass(vmSymbols::java_lang_management_GarbageCollectorMXBean(), CHECK_NULL); |
| 0 | 242 } |
| 243 return _garbageCollectorMXBean_klass; | |
| 244 } | |
| 245 | |
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246 Klass* Management::sun_management_Sensor_klass(TRAPS) { |
| 0 | 247 if (_sensor_klass == NULL) { |
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248 _sensor_klass = load_and_initialize_klass(vmSymbols::sun_management_Sensor(), CHECK_NULL); |
| 0 | 249 } |
| 250 return _sensor_klass; | |
| 251 } | |
| 252 | |
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253 Klass* Management::sun_management_ManagementFactory_klass(TRAPS) { |
| 0 | 254 if (_managementFactory_klass == NULL) { |
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255 _managementFactory_klass = load_and_initialize_klass(vmSymbols::sun_management_ManagementFactory(), CHECK_NULL); |
| 0 | 256 } |
| 257 return _managementFactory_klass; | |
| 258 } | |
| 259 | |
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260 Klass* Management::sun_management_GarbageCollectorImpl_klass(TRAPS) { |
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261 if (_garbageCollectorImpl_klass == NULL) { |
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262 _garbageCollectorImpl_klass = load_and_initialize_klass(vmSymbols::sun_management_GarbageCollectorImpl(), CHECK_NULL); |
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263 } |
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264 return _garbageCollectorImpl_klass; |
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265 } |
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266 |
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267 Klass* Management::com_sun_management_GcInfo_klass(TRAPS) { |
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268 if (_gcInfo_klass == NULL) { |
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269 _gcInfo_klass = load_and_initialize_klass(vmSymbols::com_sun_management_GcInfo(), CHECK_NULL); |
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270 } |
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271 return _gcInfo_klass; |
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272 } |
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273 |
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274 Klass* Management::sun_management_DiagnosticCommandImpl_klass(TRAPS) { |
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275 if (_diagnosticCommandImpl_klass == NULL) { |
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276 _diagnosticCommandImpl_klass = load_and_initialize_klass(vmSymbols::sun_management_DiagnosticCommandImpl(), CHECK_NULL); |
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277 } |
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278 return _diagnosticCommandImpl_klass; |
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279 } |
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280 |
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281 Klass* Management::sun_management_ManagementFactoryHelper_klass(TRAPS) { |
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282 if (_managementFactoryHelper_klass == NULL) { |
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283 _managementFactoryHelper_klass = load_and_initialize_klass(vmSymbols::sun_management_ManagementFactoryHelper(), CHECK_NULL); |
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284 } |
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285 return _managementFactoryHelper_klass; |
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286 } |
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287 |
| 0 | 288 static void initialize_ThreadInfo_constructor_arguments(JavaCallArguments* args, ThreadSnapshot* snapshot, TRAPS) { |
| 289 Handle snapshot_thread(THREAD, snapshot->threadObj()); | |
| 290 | |
| 291 jlong contended_time; | |
| 292 jlong waited_time; | |
| 293 if (ThreadService::is_thread_monitoring_contention()) { | |
| 294 contended_time = Management::ticks_to_ms(snapshot->contended_enter_ticks()); | |
| 295 waited_time = Management::ticks_to_ms(snapshot->monitor_wait_ticks() + snapshot->sleep_ticks()); | |
| 296 } else { | |
| 297 // set them to -1 if thread contention monitoring is disabled. | |
| 298 contended_time = max_julong; | |
| 299 waited_time = max_julong; | |
| 300 } | |
| 301 | |
| 302 int thread_status = snapshot->thread_status(); | |
| 303 assert((thread_status & JMM_THREAD_STATE_FLAG_MASK) == 0, "Flags already set in thread_status in Thread object"); | |
| 304 if (snapshot->is_ext_suspended()) { | |
| 305 thread_status |= JMM_THREAD_STATE_FLAG_SUSPENDED; | |
| 306 } | |
| 307 if (snapshot->is_in_native()) { | |
| 308 thread_status |= JMM_THREAD_STATE_FLAG_NATIVE; | |
| 309 } | |
| 310 | |
| 311 ThreadStackTrace* st = snapshot->get_stack_trace(); | |
| 312 Handle stacktrace_h; | |
| 313 if (st != NULL) { | |
| 314 stacktrace_h = st->allocate_fill_stack_trace_element_array(CHECK); | |
| 315 } else { | |
| 316 stacktrace_h = Handle(); | |
| 317 } | |
| 318 | |
| 319 args->push_oop(snapshot_thread); | |
| 320 args->push_int(thread_status); | |
| 321 args->push_oop(Handle(THREAD, snapshot->blocker_object())); | |
| 322 args->push_oop(Handle(THREAD, snapshot->blocker_object_owner())); | |
| 323 args->push_long(snapshot->contended_enter_count()); | |
| 324 args->push_long(contended_time); | |
| 325 args->push_long(snapshot->monitor_wait_count() + snapshot->sleep_count()); | |
| 326 args->push_long(waited_time); | |
| 327 args->push_oop(stacktrace_h); | |
| 328 } | |
| 329 | |
| 330 // Helper function to construct a ThreadInfo object | |
| 331 instanceOop Management::create_thread_info_instance(ThreadSnapshot* snapshot, TRAPS) { | |
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332 Klass* k = Management::java_lang_management_ThreadInfo_klass(CHECK_NULL); |
| 0 | 333 instanceKlassHandle ik (THREAD, k); |
| 334 | |
| 335 JavaValue result(T_VOID); | |
| 336 JavaCallArguments args(14); | |
| 337 | |
| 338 // First allocate a ThreadObj object and | |
| 339 // push the receiver as the first argument | |
| 340 Handle element = ik->allocate_instance_handle(CHECK_NULL); | |
| 341 args.push_oop(element); | |
| 342 | |
| 343 // initialize the arguments for the ThreadInfo constructor | |
| 344 initialize_ThreadInfo_constructor_arguments(&args, snapshot, CHECK_NULL); | |
| 345 | |
| 346 // Call ThreadInfo constructor with no locked monitors and synchronizers | |
| 347 JavaCalls::call_special(&result, | |
| 348 ik, | |
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349 vmSymbols::object_initializer_name(), |
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350 vmSymbols::java_lang_management_ThreadInfo_constructor_signature(), |
| 0 | 351 &args, |
| 352 CHECK_NULL); | |
| 353 | |
| 354 return (instanceOop) element(); | |
| 355 } | |
| 356 | |
| 357 instanceOop Management::create_thread_info_instance(ThreadSnapshot* snapshot, | |
| 358 objArrayHandle monitors_array, | |
| 359 typeArrayHandle depths_array, | |
| 360 objArrayHandle synchronizers_array, | |
| 361 TRAPS) { | |
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362 Klass* k = Management::java_lang_management_ThreadInfo_klass(CHECK_NULL); |
| 0 | 363 instanceKlassHandle ik (THREAD, k); |
| 364 | |
| 365 JavaValue result(T_VOID); | |
| 366 JavaCallArguments args(17); | |
| 367 | |
| 368 // First allocate a ThreadObj object and | |
| 369 // push the receiver as the first argument | |
| 370 Handle element = ik->allocate_instance_handle(CHECK_NULL); | |
| 371 args.push_oop(element); | |
| 372 | |
| 373 // initialize the arguments for the ThreadInfo constructor | |
| 374 initialize_ThreadInfo_constructor_arguments(&args, snapshot, CHECK_NULL); | |
| 375 | |
| 376 // push the locked monitors and synchronizers in the arguments | |
| 377 args.push_oop(monitors_array); | |
| 378 args.push_oop(depths_array); | |
| 379 args.push_oop(synchronizers_array); | |
| 380 | |
| 381 // Call ThreadInfo constructor with locked monitors and synchronizers | |
| 382 JavaCalls::call_special(&result, | |
| 383 ik, | |
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384 vmSymbols::object_initializer_name(), |
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385 vmSymbols::java_lang_management_ThreadInfo_with_locks_constructor_signature(), |
| 0 | 386 &args, |
| 387 CHECK_NULL); | |
| 388 | |
| 389 return (instanceOop) element(); | |
| 390 } | |
| 391 | |
| 392 | |
| 393 static GCMemoryManager* get_gc_memory_manager_from_jobject(jobject mgr, TRAPS) { | |
| 394 if (mgr == NULL) { | |
| 395 THROW_(vmSymbols::java_lang_NullPointerException(), NULL); | |
| 396 } | |
| 397 oop mgr_obj = JNIHandles::resolve(mgr); | |
| 398 instanceHandle h(THREAD, (instanceOop) mgr_obj); | |
| 399 | |
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400 Klass* k = Management::java_lang_management_GarbageCollectorMXBean_klass(CHECK_NULL); |
| 0 | 401 if (!h->is_a(k)) { |
| 402 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 403 "the object is not an instance of java.lang.management.GarbageCollectorMXBean class", | |
| 404 NULL); | |
| 405 } | |
| 406 | |
| 407 MemoryManager* gc = MemoryService::get_memory_manager(h); | |
| 408 if (gc == NULL || !gc->is_gc_memory_manager()) { | |
| 409 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 410 "Invalid GC memory manager", | |
| 411 NULL); | |
| 412 } | |
| 413 return (GCMemoryManager*) gc; | |
| 414 } | |
| 415 | |
| 416 static MemoryPool* get_memory_pool_from_jobject(jobject obj, TRAPS) { | |
| 417 if (obj == NULL) { | |
| 418 THROW_(vmSymbols::java_lang_NullPointerException(), NULL); | |
| 419 } | |
| 420 | |
| 421 oop pool_obj = JNIHandles::resolve(obj); | |
| 422 assert(pool_obj->is_instance(), "Should be an instanceOop"); | |
| 423 instanceHandle ph(THREAD, (instanceOop) pool_obj); | |
| 424 | |
| 425 return MemoryService::get_memory_pool(ph); | |
| 426 } | |
| 427 | |
| 20393 | 428 #endif // INCLUDE_MANAGEMENT |
| 429 | |
| 0 | 430 static void validate_thread_id_array(typeArrayHandle ids_ah, TRAPS) { |
| 431 int num_threads = ids_ah->length(); | |
| 432 | |
| 433 // Validate input thread IDs | |
| 434 int i = 0; | |
| 435 for (i = 0; i < num_threads; i++) { | |
| 436 jlong tid = ids_ah->long_at(i); | |
| 437 if (tid <= 0) { | |
| 438 // throw exception if invalid thread id. | |
| 439 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 440 "Invalid thread ID entry"); | |
| 441 } | |
| 442 } | |
| 443 } | |
| 444 | |
| 20393 | 445 #if INCLUDE_MANAGEMENT |
| 446 | |
| 0 | 447 static void validate_thread_info_array(objArrayHandle infoArray_h, TRAPS) { |
| 448 // check if the element of infoArray is of type ThreadInfo class | |
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449 Klass* threadinfo_klass = Management::java_lang_management_ThreadInfo_klass(CHECK); |
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450 Klass* element_klass = ObjArrayKlass::cast(infoArray_h->klass())->element_klass(); |
| 0 | 451 if (element_klass != threadinfo_klass) { |
| 452 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 453 "infoArray element type is not ThreadInfo class"); | |
| 454 } | |
| 455 } | |
| 456 | |
| 457 | |
| 458 static MemoryManager* get_memory_manager_from_jobject(jobject obj, TRAPS) { | |
| 459 if (obj == NULL) { | |
| 460 THROW_(vmSymbols::java_lang_NullPointerException(), NULL); | |
| 461 } | |
| 462 | |
| 463 oop mgr_obj = JNIHandles::resolve(obj); | |
| 464 assert(mgr_obj->is_instance(), "Should be an instanceOop"); | |
| 465 instanceHandle mh(THREAD, (instanceOop) mgr_obj); | |
| 466 | |
| 467 return MemoryService::get_memory_manager(mh); | |
| 468 } | |
| 469 | |
| 470 // Returns a version string and sets major and minor version if | |
| 471 // the input parameters are non-null. | |
| 472 JVM_LEAF(jint, jmm_GetVersion(JNIEnv *env)) | |
| 473 return JMM_VERSION; | |
| 474 JVM_END | |
| 475 | |
| 476 // Gets the list of VM monitoring and management optional supports | |
| 477 // Returns 0 if succeeded; otherwise returns non-zero. | |
| 478 JVM_LEAF(jint, jmm_GetOptionalSupport(JNIEnv *env, jmmOptionalSupport* support)) | |
| 479 if (support == NULL) { | |
| 480 return -1; | |
| 481 } | |
| 482 Management::get_optional_support(support); | |
| 483 return 0; | |
| 484 JVM_END | |
| 485 | |
| 486 // Returns a java.lang.String object containing the input arguments to the VM. | |
| 487 JVM_ENTRY(jobject, jmm_GetInputArguments(JNIEnv *env)) | |
| 488 ResourceMark rm(THREAD); | |
| 489 | |
| 490 if (Arguments::num_jvm_args() == 0 && Arguments::num_jvm_flags() == 0) { | |
| 491 return NULL; | |
| 492 } | |
| 493 | |
| 494 char** vm_flags = Arguments::jvm_flags_array(); | |
| 495 char** vm_args = Arguments::jvm_args_array(); | |
| 496 int num_flags = Arguments::num_jvm_flags(); | |
| 497 int num_args = Arguments::num_jvm_args(); | |
| 498 | |
| 499 size_t length = 1; // null terminator | |
| 500 int i; | |
| 501 for (i = 0; i < num_flags; i++) { | |
| 502 length += strlen(vm_flags[i]); | |
| 503 } | |
| 504 for (i = 0; i < num_args; i++) { | |
| 505 length += strlen(vm_args[i]); | |
| 506 } | |
| 507 // add a space between each argument | |
| 508 length += num_flags + num_args - 1; | |
| 509 | |
| 510 // Return the list of input arguments passed to the VM | |
| 511 // and preserve the order that the VM processes. | |
| 512 char* args = NEW_RESOURCE_ARRAY(char, length); | |
| 513 args[0] = '\0'; | |
| 514 // concatenate all jvm_flags | |
| 515 if (num_flags > 0) { | |
| 516 strcat(args, vm_flags[0]); | |
| 517 for (i = 1; i < num_flags; i++) { | |
| 518 strcat(args, " "); | |
| 519 strcat(args, vm_flags[i]); | |
| 520 } | |
| 521 } | |
| 522 | |
| 523 if (num_args > 0 && num_flags > 0) { | |
| 524 // append a space if args already contains one or more jvm_flags | |
| 525 strcat(args, " "); | |
| 526 } | |
| 527 | |
| 528 // concatenate all jvm_args | |
| 529 if (num_args > 0) { | |
| 530 strcat(args, vm_args[0]); | |
| 531 for (i = 1; i < num_args; i++) { | |
| 532 strcat(args, " "); | |
| 533 strcat(args, vm_args[i]); | |
| 534 } | |
| 535 } | |
| 536 | |
| 537 Handle hargs = java_lang_String::create_from_platform_dependent_str(args, CHECK_NULL); | |
| 538 return JNIHandles::make_local(env, hargs()); | |
| 539 JVM_END | |
| 540 | |
| 541 // Returns an array of java.lang.String object containing the input arguments to the VM. | |
| 542 JVM_ENTRY(jobjectArray, jmm_GetInputArgumentArray(JNIEnv *env)) | |
| 543 ResourceMark rm(THREAD); | |
| 544 | |
| 545 if (Arguments::num_jvm_args() == 0 && Arguments::num_jvm_flags() == 0) { | |
| 546 return NULL; | |
| 547 } | |
| 548 | |
| 549 char** vm_flags = Arguments::jvm_flags_array(); | |
| 550 char** vm_args = Arguments::jvm_args_array(); | |
| 551 int num_flags = Arguments::num_jvm_flags(); | |
| 552 int num_args = Arguments::num_jvm_args(); | |
| 553 | |
| 1142 | 554 instanceKlassHandle ik (THREAD, SystemDictionary::String_klass()); |
| 0 | 555 objArrayOop r = oopFactory::new_objArray(ik(), num_args + num_flags, CHECK_NULL); |
| 556 objArrayHandle result_h(THREAD, r); | |
| 557 | |
| 558 int index = 0; | |
| 559 for (int j = 0; j < num_flags; j++, index++) { | |
| 560 Handle h = java_lang_String::create_from_platform_dependent_str(vm_flags[j], CHECK_NULL); | |
| 561 result_h->obj_at_put(index, h()); | |
| 562 } | |
| 563 for (int i = 0; i < num_args; i++, index++) { | |
| 564 Handle h = java_lang_String::create_from_platform_dependent_str(vm_args[i], CHECK_NULL); | |
| 565 result_h->obj_at_put(index, h()); | |
| 566 } | |
| 567 return (jobjectArray) JNIHandles::make_local(env, result_h()); | |
| 568 JVM_END | |
| 569 | |
| 570 // Returns an array of java/lang/management/MemoryPoolMXBean object | |
| 571 // one for each memory pool if obj == null; otherwise returns | |
| 572 // an array of memory pools for a given memory manager if | |
| 573 // it is a valid memory manager. | |
| 574 JVM_ENTRY(jobjectArray, jmm_GetMemoryPools(JNIEnv* env, jobject obj)) | |
| 575 ResourceMark rm(THREAD); | |
| 576 | |
| 577 int num_memory_pools; | |
| 578 MemoryManager* mgr = NULL; | |
| 579 if (obj == NULL) { | |
| 580 num_memory_pools = MemoryService::num_memory_pools(); | |
| 581 } else { | |
| 582 mgr = get_memory_manager_from_jobject(obj, CHECK_NULL); | |
| 583 if (mgr == NULL) { | |
| 584 return NULL; | |
| 585 } | |
| 586 num_memory_pools = mgr->num_memory_pools(); | |
| 587 } | |
| 588 | |
| 589 // Allocate the resulting MemoryPoolMXBean[] object | |
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590 Klass* k = Management::java_lang_management_MemoryPoolMXBean_klass(CHECK_NULL); |
| 0 | 591 instanceKlassHandle ik (THREAD, k); |
| 592 objArrayOop r = oopFactory::new_objArray(ik(), num_memory_pools, CHECK_NULL); | |
| 593 objArrayHandle poolArray(THREAD, r); | |
| 594 | |
| 595 if (mgr == NULL) { | |
| 596 // Get all memory pools | |
| 597 for (int i = 0; i < num_memory_pools; i++) { | |
| 598 MemoryPool* pool = MemoryService::get_memory_pool(i); | |
| 599 instanceOop p = pool->get_memory_pool_instance(CHECK_NULL); | |
| 600 instanceHandle ph(THREAD, p); | |
| 601 poolArray->obj_at_put(i, ph()); | |
| 602 } | |
| 603 } else { | |
| 604 // Get memory pools managed by a given memory manager | |
| 605 for (int i = 0; i < num_memory_pools; i++) { | |
| 606 MemoryPool* pool = mgr->get_memory_pool(i); | |
| 607 instanceOop p = pool->get_memory_pool_instance(CHECK_NULL); | |
| 608 instanceHandle ph(THREAD, p); | |
| 609 poolArray->obj_at_put(i, ph()); | |
| 610 } | |
| 611 } | |
| 612 return (jobjectArray) JNIHandles::make_local(env, poolArray()); | |
| 613 JVM_END | |
| 614 | |
| 615 // Returns an array of java/lang/management/MemoryManagerMXBean object | |
| 616 // one for each memory manager if obj == null; otherwise returns | |
| 617 // an array of memory managers for a given memory pool if | |
| 618 // it is a valid memory pool. | |
| 619 JVM_ENTRY(jobjectArray, jmm_GetMemoryManagers(JNIEnv* env, jobject obj)) | |
| 620 ResourceMark rm(THREAD); | |
| 621 | |
| 622 int num_mgrs; | |
| 623 MemoryPool* pool = NULL; | |
| 624 if (obj == NULL) { | |
| 625 num_mgrs = MemoryService::num_memory_managers(); | |
| 626 } else { | |
| 627 pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 628 if (pool == NULL) { | |
| 629 return NULL; | |
| 630 } | |
| 631 num_mgrs = pool->num_memory_managers(); | |
| 632 } | |
| 633 | |
| 634 // Allocate the resulting MemoryManagerMXBean[] object | |
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635 Klass* k = Management::java_lang_management_MemoryManagerMXBean_klass(CHECK_NULL); |
| 0 | 636 instanceKlassHandle ik (THREAD, k); |
| 637 objArrayOop r = oopFactory::new_objArray(ik(), num_mgrs, CHECK_NULL); | |
| 638 objArrayHandle mgrArray(THREAD, r); | |
| 639 | |
| 640 if (pool == NULL) { | |
| 641 // Get all memory managers | |
| 642 for (int i = 0; i < num_mgrs; i++) { | |
| 643 MemoryManager* mgr = MemoryService::get_memory_manager(i); | |
| 644 instanceOop p = mgr->get_memory_manager_instance(CHECK_NULL); | |
| 645 instanceHandle ph(THREAD, p); | |
| 646 mgrArray->obj_at_put(i, ph()); | |
| 647 } | |
| 648 } else { | |
| 649 // Get memory managers for a given memory pool | |
| 650 for (int i = 0; i < num_mgrs; i++) { | |
| 651 MemoryManager* mgr = pool->get_memory_manager(i); | |
| 652 instanceOop p = mgr->get_memory_manager_instance(CHECK_NULL); | |
| 653 instanceHandle ph(THREAD, p); | |
| 654 mgrArray->obj_at_put(i, ph()); | |
| 655 } | |
| 656 } | |
| 657 return (jobjectArray) JNIHandles::make_local(env, mgrArray()); | |
| 658 JVM_END | |
| 659 | |
| 660 | |
| 661 // Returns a java/lang/management/MemoryUsage object containing the memory usage | |
| 662 // of a given memory pool. | |
| 663 JVM_ENTRY(jobject, jmm_GetMemoryPoolUsage(JNIEnv* env, jobject obj)) | |
| 664 ResourceMark rm(THREAD); | |
| 665 | |
| 666 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 667 if (pool != NULL) { | |
| 668 MemoryUsage usage = pool->get_memory_usage(); | |
| 669 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 670 return JNIHandles::make_local(env, h()); | |
| 671 } else { | |
| 672 return NULL; | |
| 673 } | |
| 674 JVM_END | |
| 675 | |
| 676 // Returns a java/lang/management/MemoryUsage object containing the memory usage | |
| 677 // of a given memory pool. | |
| 678 JVM_ENTRY(jobject, jmm_GetPeakMemoryPoolUsage(JNIEnv* env, jobject obj)) | |
| 679 ResourceMark rm(THREAD); | |
| 680 | |
| 681 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 682 if (pool != NULL) { | |
| 683 MemoryUsage usage = pool->get_peak_memory_usage(); | |
| 684 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 685 return JNIHandles::make_local(env, h()); | |
| 686 } else { | |
| 687 return NULL; | |
| 688 } | |
| 689 JVM_END | |
| 690 | |
| 691 // Returns a java/lang/management/MemoryUsage object containing the memory usage | |
| 692 // of a given memory pool after most recent GC. | |
| 693 JVM_ENTRY(jobject, jmm_GetPoolCollectionUsage(JNIEnv* env, jobject obj)) | |
| 694 ResourceMark rm(THREAD); | |
| 695 | |
| 696 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 697 if (pool != NULL && pool->is_collected_pool()) { | |
| 698 MemoryUsage usage = pool->get_last_collection_usage(); | |
| 699 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 700 return JNIHandles::make_local(env, h()); | |
| 701 } else { | |
| 702 return NULL; | |
| 703 } | |
| 704 JVM_END | |
| 705 | |
| 706 // Sets the memory pool sensor for a threshold type | |
| 707 JVM_ENTRY(void, jmm_SetPoolSensor(JNIEnv* env, jobject obj, jmmThresholdType type, jobject sensorObj)) | |
| 708 if (obj == NULL || sensorObj == NULL) { | |
| 709 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 710 } | |
| 711 | |
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712 Klass* sensor_klass = Management::sun_management_Sensor_klass(CHECK); |
| 0 | 713 oop s = JNIHandles::resolve(sensorObj); |
| 714 assert(s->is_instance(), "Sensor should be an instanceOop"); | |
| 715 instanceHandle sensor_h(THREAD, (instanceOop) s); | |
| 716 if (!sensor_h->is_a(sensor_klass)) { | |
| 717 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 718 "Sensor is not an instance of sun.management.Sensor class"); | |
| 719 } | |
| 720 | |
| 721 MemoryPool* mpool = get_memory_pool_from_jobject(obj, CHECK); | |
| 722 assert(mpool != NULL, "MemoryPool should exist"); | |
| 723 | |
| 724 switch (type) { | |
| 725 case JMM_USAGE_THRESHOLD_HIGH: | |
| 726 case JMM_USAGE_THRESHOLD_LOW: | |
| 727 // have only one sensor for threshold high and low | |
| 728 mpool->set_usage_sensor_obj(sensor_h); | |
| 729 break; | |
| 730 case JMM_COLLECTION_USAGE_THRESHOLD_HIGH: | |
| 731 case JMM_COLLECTION_USAGE_THRESHOLD_LOW: | |
| 732 // have only one sensor for threshold high and low | |
| 733 mpool->set_gc_usage_sensor_obj(sensor_h); | |
| 734 break; | |
| 735 default: | |
| 736 assert(false, "Unrecognized type"); | |
| 737 } | |
| 738 | |
| 739 JVM_END | |
| 740 | |
| 741 | |
| 742 // Sets the threshold of a given memory pool. | |
| 743 // Returns the previous threshold. | |
| 744 // | |
| 745 // Input parameters: | |
| 746 // pool - the MemoryPoolMXBean object | |
| 747 // type - threshold type | |
| 748 // threshold - the new threshold (must not be negative) | |
| 749 // | |
| 750 JVM_ENTRY(jlong, jmm_SetPoolThreshold(JNIEnv* env, jobject obj, jmmThresholdType type, jlong threshold)) | |
| 751 if (threshold < 0) { | |
| 752 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 753 "Invalid threshold value", | |
| 754 -1); | |
| 755 } | |
| 756 | |
|
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757 if ((size_t)threshold > max_uintx) { |
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758 stringStream st; |
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759 st.print("Invalid valid threshold value. Threshold value (" UINT64_FORMAT ") > max value of size_t (" SIZE_FORMAT ")", (size_t)threshold, max_uintx); |
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760 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), st.as_string(), -1); |
| 0 | 761 } |
| 762 | |
| 763 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_(0L)); | |
| 764 assert(pool != NULL, "MemoryPool should exist"); | |
| 765 | |
| 766 jlong prev = 0; | |
| 767 switch (type) { | |
| 768 case JMM_USAGE_THRESHOLD_HIGH: | |
| 769 if (!pool->usage_threshold()->is_high_threshold_supported()) { | |
| 770 return -1; | |
| 771 } | |
| 772 prev = pool->usage_threshold()->set_high_threshold((size_t) threshold); | |
| 773 break; | |
| 774 | |
| 775 case JMM_USAGE_THRESHOLD_LOW: | |
| 776 if (!pool->usage_threshold()->is_low_threshold_supported()) { | |
| 777 return -1; | |
| 778 } | |
| 779 prev = pool->usage_threshold()->set_low_threshold((size_t) threshold); | |
| 780 break; | |
| 781 | |
| 782 case JMM_COLLECTION_USAGE_THRESHOLD_HIGH: | |
| 783 if (!pool->gc_usage_threshold()->is_high_threshold_supported()) { | |
| 784 return -1; | |
| 785 } | |
| 786 // return and the new threshold is effective for the next GC | |
| 787 return pool->gc_usage_threshold()->set_high_threshold((size_t) threshold); | |
| 788 | |
| 789 case JMM_COLLECTION_USAGE_THRESHOLD_LOW: | |
| 790 if (!pool->gc_usage_threshold()->is_low_threshold_supported()) { | |
| 791 return -1; | |
| 792 } | |
| 793 // return and the new threshold is effective for the next GC | |
| 794 return pool->gc_usage_threshold()->set_low_threshold((size_t) threshold); | |
| 795 | |
| 796 default: | |
| 797 assert(false, "Unrecognized type"); | |
| 798 return -1; | |
| 799 } | |
| 800 | |
| 801 // When the threshold is changed, reevaluate if the low memory | |
| 802 // detection is enabled. | |
| 803 if (prev != threshold) { | |
| 804 LowMemoryDetector::recompute_enabled_for_collected_pools(); | |
| 805 LowMemoryDetector::detect_low_memory(pool); | |
| 806 } | |
| 807 return prev; | |
| 808 JVM_END | |
| 809 | |
| 810 // Returns a java/lang/management/MemoryUsage object representing | |
| 811 // the memory usage for the heap or non-heap memory. | |
| 812 JVM_ENTRY(jobject, jmm_GetMemoryUsage(JNIEnv* env, jboolean heap)) | |
| 813 ResourceMark rm(THREAD); | |
| 814 | |
| 815 // Calculate the memory usage | |
| 816 size_t total_init = 0; | |
| 817 size_t total_used = 0; | |
| 818 size_t total_committed = 0; | |
| 819 size_t total_max = 0; | |
| 820 bool has_undefined_init_size = false; | |
| 821 bool has_undefined_max_size = false; | |
| 822 | |
| 823 for (int i = 0; i < MemoryService::num_memory_pools(); i++) { | |
| 824 MemoryPool* pool = MemoryService::get_memory_pool(i); | |
| 825 if ((heap && pool->is_heap()) || (!heap && pool->is_non_heap())) { | |
| 826 MemoryUsage u = pool->get_memory_usage(); | |
| 827 total_used += u.used(); | |
| 828 total_committed += u.committed(); | |
| 829 | |
| 830 if (u.init_size() == (size_t)-1) { | |
| 831 has_undefined_init_size = true; | |
| 832 } | |
| 833 if (!has_undefined_init_size) { | |
| 834 total_init += u.init_size(); | |
| 835 } | |
| 836 | |
| 837 if (u.max_size() == (size_t)-1) { | |
| 838 has_undefined_max_size = true; | |
| 839 } | |
| 840 if (!has_undefined_max_size) { | |
| 841 total_max += u.max_size(); | |
| 842 } | |
| 843 } | |
| 844 } | |
| 845 | |
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846 // if any one of the memory pool has undefined init_size or max_size, |
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847 // set it to -1 |
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848 if (has_undefined_init_size) { |
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849 total_init = (size_t)-1; |
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850 } |
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851 if (has_undefined_max_size) { |
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852 total_max = (size_t)-1; |
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853 } |
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|
854 |
| 1064 | 855 MemoryUsage usage((heap ? InitialHeapSize : total_init), |
| 0 | 856 total_used, |
| 857 total_committed, | |
| 858 (heap ? Universe::heap()->max_capacity() : total_max)); | |
| 859 | |
| 860 Handle obj = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 861 return JNIHandles::make_local(env, obj()); | |
| 862 JVM_END | |
| 863 | |
| 864 // Returns the boolean value of a given attribute. | |
| 865 JVM_LEAF(jboolean, jmm_GetBoolAttribute(JNIEnv *env, jmmBoolAttribute att)) | |
| 866 switch (att) { | |
| 867 case JMM_VERBOSE_GC: | |
| 868 return MemoryService::get_verbose(); | |
| 869 case JMM_VERBOSE_CLASS: | |
| 870 return ClassLoadingService::get_verbose(); | |
| 871 case JMM_THREAD_CONTENTION_MONITORING: | |
| 872 return ThreadService::is_thread_monitoring_contention(); | |
| 873 case JMM_THREAD_CPU_TIME: | |
| 874 return ThreadService::is_thread_cpu_time_enabled(); | |
|
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875 case JMM_THREAD_ALLOCATED_MEMORY: |
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876 return ThreadService::is_thread_allocated_memory_enabled(); |
| 0 | 877 default: |
| 878 assert(0, "Unrecognized attribute"); | |
| 879 return false; | |
| 880 } | |
| 881 JVM_END | |
| 882 | |
| 883 // Sets the given boolean attribute and returns the previous value. | |
| 884 JVM_ENTRY(jboolean, jmm_SetBoolAttribute(JNIEnv *env, jmmBoolAttribute att, jboolean flag)) | |
| 885 switch (att) { | |
| 886 case JMM_VERBOSE_GC: | |
| 887 return MemoryService::set_verbose(flag != 0); | |
| 888 case JMM_VERBOSE_CLASS: | |
| 889 return ClassLoadingService::set_verbose(flag != 0); | |
| 890 case JMM_THREAD_CONTENTION_MONITORING: | |
| 891 return ThreadService::set_thread_monitoring_contention(flag != 0); | |
| 892 case JMM_THREAD_CPU_TIME: | |
| 893 return ThreadService::set_thread_cpu_time_enabled(flag != 0); | |
|
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894 case JMM_THREAD_ALLOCATED_MEMORY: |
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895 return ThreadService::set_thread_allocated_memory_enabled(flag != 0); |
| 0 | 896 default: |
| 897 assert(0, "Unrecognized attribute"); | |
| 898 return false; | |
| 899 } | |
| 900 JVM_END | |
| 901 | |
| 902 | |
| 903 static jlong get_gc_attribute(GCMemoryManager* mgr, jmmLongAttribute att) { | |
| 904 switch (att) { | |
| 905 case JMM_GC_TIME_MS: | |
| 906 return mgr->gc_time_ms(); | |
| 907 | |
| 908 case JMM_GC_COUNT: | |
| 909 return mgr->gc_count(); | |
| 910 | |
| 911 case JMM_GC_EXT_ATTRIBUTE_INFO_SIZE: | |
| 912 // current implementation only has 1 ext attribute | |
| 913 return 1; | |
| 914 | |
| 915 default: | |
| 916 assert(0, "Unrecognized GC attribute"); | |
| 917 return -1; | |
| 918 } | |
| 919 } | |
| 920 | |
| 921 class VmThreadCountClosure: public ThreadClosure { | |
| 922 private: | |
| 923 int _count; | |
| 924 public: | |
| 925 VmThreadCountClosure() : _count(0) {}; | |
| 926 void do_thread(Thread* thread); | |
| 927 int count() { return _count; } | |
| 928 }; | |
| 929 | |
| 930 void VmThreadCountClosure::do_thread(Thread* thread) { | |
| 931 // exclude externally visible JavaThreads | |
| 932 if (thread->is_Java_thread() && !thread->is_hidden_from_external_view()) { | |
| 933 return; | |
| 934 } | |
| 935 | |
| 936 _count++; | |
| 937 } | |
| 938 | |
| 939 static jint get_vm_thread_count() { | |
| 940 VmThreadCountClosure vmtcc; | |
| 941 { | |
| 942 MutexLockerEx ml(Threads_lock); | |
| 943 Threads::threads_do(&vmtcc); | |
| 944 } | |
| 945 | |
| 946 return vmtcc.count(); | |
| 947 } | |
| 948 | |
| 949 static jint get_num_flags() { | |
| 950 // last flag entry is always NULL, so subtract 1 | |
| 951 int nFlags = (int) Flag::numFlags - 1; | |
| 952 int count = 0; | |
| 953 for (int i = 0; i < nFlags; i++) { | |
| 954 Flag* flag = &Flag::flags[i]; | |
| 350 | 955 // Exclude the locked (diagnostic, experimental) flags |
| 0 | 956 if (flag->is_unlocked() || flag->is_unlocker()) { |
| 957 count++; | |
| 958 } | |
| 959 } | |
| 960 return count; | |
| 961 } | |
| 962 | |
| 963 static jlong get_long_attribute(jmmLongAttribute att) { | |
| 964 switch (att) { | |
| 965 case JMM_CLASS_LOADED_COUNT: | |
| 966 return ClassLoadingService::loaded_class_count(); | |
| 967 | |
| 968 case JMM_CLASS_UNLOADED_COUNT: | |
| 969 return ClassLoadingService::unloaded_class_count(); | |
| 970 | |
| 971 case JMM_THREAD_TOTAL_COUNT: | |
| 972 return ThreadService::get_total_thread_count(); | |
| 973 | |
| 974 case JMM_THREAD_LIVE_COUNT: | |
| 975 return ThreadService::get_live_thread_count(); | |
| 976 | |
| 977 case JMM_THREAD_PEAK_COUNT: | |
| 978 return ThreadService::get_peak_thread_count(); | |
| 979 | |
| 980 case JMM_THREAD_DAEMON_COUNT: | |
| 981 return ThreadService::get_daemon_thread_count(); | |
| 982 | |
| 983 case JMM_JVM_INIT_DONE_TIME_MS: | |
| 984 return Management::vm_init_done_time(); | |
| 985 | |
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986 case JMM_JVM_UPTIME_MS: |
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987 return Management::ticks_to_ms(os::elapsed_counter()); |
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988 |
| 0 | 989 case JMM_COMPILE_TOTAL_TIME_MS: |
| 990 return Management::ticks_to_ms(CompileBroker::total_compilation_ticks()); | |
| 991 | |
| 992 case JMM_OS_PROCESS_ID: | |
| 993 return os::current_process_id(); | |
| 994 | |
| 995 // Hotspot-specific counters | |
| 996 case JMM_CLASS_LOADED_BYTES: | |
| 997 return ClassLoadingService::loaded_class_bytes(); | |
| 998 | |
| 999 case JMM_CLASS_UNLOADED_BYTES: | |
| 1000 return ClassLoadingService::unloaded_class_bytes(); | |
| 1001 | |
| 1002 case JMM_SHARED_CLASS_LOADED_COUNT: | |
| 1003 return ClassLoadingService::loaded_shared_class_count(); | |
| 1004 | |
| 1005 case JMM_SHARED_CLASS_UNLOADED_COUNT: | |
| 1006 return ClassLoadingService::unloaded_shared_class_count(); | |
| 1007 | |
| 1008 | |
| 1009 case JMM_SHARED_CLASS_LOADED_BYTES: | |
| 1010 return ClassLoadingService::loaded_shared_class_bytes(); | |
| 1011 | |
| 1012 case JMM_SHARED_CLASS_UNLOADED_BYTES: | |
| 1013 return ClassLoadingService::unloaded_shared_class_bytes(); | |
| 1014 | |
| 1015 case JMM_TOTAL_CLASSLOAD_TIME_MS: | |
| 1016 return ClassLoader::classloader_time_ms(); | |
| 1017 | |
| 1018 case JMM_VM_GLOBAL_COUNT: | |
| 1019 return get_num_flags(); | |
| 1020 | |
| 1021 case JMM_SAFEPOINT_COUNT: | |
| 1022 return RuntimeService::safepoint_count(); | |
| 1023 | |
| 1024 case JMM_TOTAL_SAFEPOINTSYNC_TIME_MS: | |
| 1025 return RuntimeService::safepoint_sync_time_ms(); | |
| 1026 | |
| 1027 case JMM_TOTAL_STOPPED_TIME_MS: | |
| 1028 return RuntimeService::safepoint_time_ms(); | |
| 1029 | |
| 1030 case JMM_TOTAL_APP_TIME_MS: | |
| 1031 return RuntimeService::application_time_ms(); | |
| 1032 | |
| 1033 case JMM_VM_THREAD_COUNT: | |
| 1034 return get_vm_thread_count(); | |
| 1035 | |
| 1036 case JMM_CLASS_INIT_TOTAL_COUNT: | |
| 1037 return ClassLoader::class_init_count(); | |
| 1038 | |
| 1039 case JMM_CLASS_INIT_TOTAL_TIME_MS: | |
| 1040 return ClassLoader::class_init_time_ms(); | |
| 1041 | |
| 1042 case JMM_CLASS_VERIFY_TOTAL_TIME_MS: | |
| 1043 return ClassLoader::class_verify_time_ms(); | |
| 1044 | |
| 1045 case JMM_METHOD_DATA_SIZE_BYTES: | |
| 1046 return ClassLoadingService::class_method_data_size(); | |
| 1047 | |
| 1048 case JMM_OS_MEM_TOTAL_PHYSICAL_BYTES: | |
| 1049 return os::physical_memory(); | |
| 1050 | |
| 1051 default: | |
| 1052 return -1; | |
| 1053 } | |
| 1054 } | |
| 1055 | |
| 1056 | |
| 1057 // Returns the long value of a given attribute. | |
| 1058 JVM_ENTRY(jlong, jmm_GetLongAttribute(JNIEnv *env, jobject obj, jmmLongAttribute att)) | |
| 1059 if (obj == NULL) { | |
| 1060 return get_long_attribute(att); | |
| 1061 } else { | |
| 1062 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK_(0L)); | |
| 1063 if (mgr != NULL) { | |
| 1064 return get_gc_attribute(mgr, att); | |
| 1065 } | |
| 1066 } | |
| 1067 return -1; | |
| 1068 JVM_END | |
| 1069 | |
| 1070 // Gets the value of all attributes specified in the given array | |
| 1071 // and sets the value in the result array. | |
| 1072 // Returns the number of attributes found. | |
| 1073 JVM_ENTRY(jint, jmm_GetLongAttributes(JNIEnv *env, | |
| 1074 jobject obj, | |
| 1075 jmmLongAttribute* atts, | |
| 1076 jint count, | |
| 1077 jlong* result)) | |
| 1078 | |
| 1079 int num_atts = 0; | |
| 1080 if (obj == NULL) { | |
| 1081 for (int i = 0; i < count; i++) { | |
| 1082 result[i] = get_long_attribute(atts[i]); | |
| 1083 if (result[i] != -1) { | |
| 1084 num_atts++; | |
| 1085 } | |
| 1086 } | |
| 1087 } else { | |
| 1088 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK_0); | |
| 1089 for (int i = 0; i < count; i++) { | |
| 1090 result[i] = get_gc_attribute(mgr, atts[i]); | |
| 1091 if (result[i] != -1) { | |
| 1092 num_atts++; | |
| 1093 } | |
| 1094 } | |
| 1095 } | |
| 1096 return num_atts; | |
| 1097 JVM_END | |
| 1098 | |
| 1099 // Helper function to do thread dump for a specific list of threads | |
| 1100 static void do_thread_dump(ThreadDumpResult* dump_result, | |
| 1101 typeArrayHandle ids_ah, // array of thread ID (long[]) | |
| 1102 int num_threads, | |
| 1103 int max_depth, | |
| 1104 bool with_locked_monitors, | |
| 1105 bool with_locked_synchronizers, | |
| 1106 TRAPS) { | |
| 1107 | |
| 1108 // First get an array of threadObj handles. | |
| 1109 // A JavaThread may terminate before we get the stack trace. | |
| 1110 GrowableArray<instanceHandle>* thread_handle_array = new GrowableArray<instanceHandle>(num_threads); | |
| 1111 { | |
| 1112 MutexLockerEx ml(Threads_lock); | |
| 1113 for (int i = 0; i < num_threads; i++) { | |
| 1114 jlong tid = ids_ah->long_at(i); | |
| 20393 | 1115 JavaThread* jt = Threads::find_java_thread_from_java_tid(tid); |
| 0 | 1116 oop thread_obj = (jt != NULL ? jt->threadObj() : (oop)NULL); |
| 1117 instanceHandle threadObj_h(THREAD, (instanceOop) thread_obj); | |
| 1118 thread_handle_array->append(threadObj_h); | |
| 1119 } | |
| 1120 } | |
| 1121 | |
| 1122 // Obtain thread dumps and thread snapshot information | |
| 1123 VM_ThreadDump op(dump_result, | |
| 1124 thread_handle_array, | |
| 1125 num_threads, | |
| 1126 max_depth, /* stack depth */ | |
| 1127 with_locked_monitors, | |
| 1128 with_locked_synchronizers); | |
| 1129 VMThread::execute(&op); | |
| 1130 } | |
| 1131 | |
| 1132 // Gets an array of ThreadInfo objects. Each element is the ThreadInfo | |
| 1133 // for the thread ID specified in the corresponding entry in | |
| 1134 // the given array of thread IDs; or NULL if the thread does not exist | |
| 1135 // or has terminated. | |
| 1136 // | |
| 1137 // Input parameters: | |
| 1138 // ids - array of thread IDs | |
| 1139 // maxDepth - the maximum depth of stack traces to be dumped: | |
| 1140 // maxDepth == -1 requests to dump entire stack trace. | |
| 1141 // maxDepth == 0 requests no stack trace. | |
| 1142 // infoArray - array of ThreadInfo objects | |
| 1143 // | |
|
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1144 // QQQ - Why does this method return a value instead of void? |
| 0 | 1145 JVM_ENTRY(jint, jmm_GetThreadInfo(JNIEnv *env, jlongArray ids, jint maxDepth, jobjectArray infoArray)) |
| 1146 // Check if threads is null | |
| 1147 if (ids == NULL || infoArray == NULL) { | |
| 1148 THROW_(vmSymbols::java_lang_NullPointerException(), -1); | |
| 1149 } | |
| 1150 | |
| 1151 if (maxDepth < -1) { | |
| 1152 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1153 "Invalid maxDepth", -1); | |
| 1154 } | |
| 1155 | |
| 1156 ResourceMark rm(THREAD); | |
| 1157 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(ids)); | |
| 1158 typeArrayHandle ids_ah(THREAD, ta); | |
| 1159 | |
| 1160 oop infoArray_obj = JNIHandles::resolve_non_null(infoArray); | |
| 1161 objArrayOop oa = objArrayOop(infoArray_obj); | |
| 1162 objArrayHandle infoArray_h(THREAD, oa); | |
| 1163 | |
| 1164 // validate the thread id array | |
| 1165 validate_thread_id_array(ids_ah, CHECK_0); | |
| 1166 | |
| 1167 // validate the ThreadInfo[] parameters | |
| 1168 validate_thread_info_array(infoArray_h, CHECK_0); | |
| 1169 | |
| 1170 // infoArray must be of the same length as the given array of thread IDs | |
| 1171 int num_threads = ids_ah->length(); | |
| 1172 if (num_threads != infoArray_h->length()) { | |
| 1173 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1174 "The length of the given ThreadInfo array does not match the length of the given array of thread IDs", -1); | |
| 1175 } | |
| 1176 | |
| 1177 if (JDK_Version::is_gte_jdk16x_version()) { | |
| 1178 // make sure the AbstractOwnableSynchronizer klass is loaded before taking thread snapshots | |
| 1179 java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(CHECK_0); | |
| 1180 } | |
| 1181 | |
| 1182 // Must use ThreadDumpResult to store the ThreadSnapshot. | |
| 1183 // GC may occur after the thread snapshots are taken but before | |
| 1184 // this function returns. The threadObj and other oops kept | |
| 1185 // in the ThreadSnapshot are marked and adjusted during GC. | |
| 1186 ThreadDumpResult dump_result(num_threads); | |
| 1187 | |
| 1188 if (maxDepth == 0) { | |
| 1189 // no stack trace dumped - do not need to stop the world | |
| 1190 { | |
| 1191 MutexLockerEx ml(Threads_lock); | |
| 1192 for (int i = 0; i < num_threads; i++) { | |
| 1193 jlong tid = ids_ah->long_at(i); | |
| 20393 | 1194 JavaThread* jt = Threads::find_java_thread_from_java_tid(tid); |
| 0 | 1195 ThreadSnapshot* ts; |
| 1196 if (jt == NULL) { | |
| 1197 // if the thread does not exist or now it is terminated, | |
| 1198 // create dummy snapshot | |
| 1199 ts = new ThreadSnapshot(); | |
| 1200 } else { | |
| 1201 ts = new ThreadSnapshot(jt); | |
| 1202 } | |
| 1203 dump_result.add_thread_snapshot(ts); | |
| 1204 } | |
| 1205 } | |
| 1206 } else { | |
| 1207 // obtain thread dump with the specific list of threads with stack trace | |
| 1208 do_thread_dump(&dump_result, | |
| 1209 ids_ah, | |
| 1210 num_threads, | |
| 1211 maxDepth, | |
| 1212 false, /* no locked monitor */ | |
| 1213 false, /* no locked synchronizers */ | |
| 1214 CHECK_0); | |
| 1215 } | |
| 1216 | |
| 1217 int num_snapshots = dump_result.num_snapshots(); | |
| 1218 assert(num_snapshots == num_threads, "Must match the number of thread snapshots"); | |
| 1219 int index = 0; | |
| 1220 for (ThreadSnapshot* ts = dump_result.snapshots(); ts != NULL; index++, ts = ts->next()) { | |
| 1221 // For each thread, create an java/lang/management/ThreadInfo object | |
| 1222 // and fill with the thread information | |
| 1223 | |
| 1224 if (ts->threadObj() == NULL) { | |
| 1225 // if the thread does not exist or now it is terminated, set threadinfo to NULL | |
| 1226 infoArray_h->obj_at_put(index, NULL); | |
| 1227 continue; | |
| 1228 } | |
| 1229 | |
| 1230 // Create java.lang.management.ThreadInfo object | |
| 1231 instanceOop info_obj = Management::create_thread_info_instance(ts, CHECK_0); | |
| 1232 infoArray_h->obj_at_put(index, info_obj); | |
| 1233 } | |
| 1234 return 0; | |
| 1235 JVM_END | |
| 1236 | |
| 1237 // Dump thread info for the specified threads. | |
| 1238 // It returns an array of ThreadInfo objects. Each element is the ThreadInfo | |
| 1239 // for the thread ID specified in the corresponding entry in | |
| 1240 // the given array of thread IDs; or NULL if the thread does not exist | |
| 1241 // or has terminated. | |
| 1242 // | |
| 1243 // Input parameter: | |
| 1244 // ids - array of thread IDs; NULL indicates all live threads | |
| 1245 // locked_monitors - if true, dump locked object monitors | |
| 1246 // locked_synchronizers - if true, dump locked JSR-166 synchronizers | |
| 1247 // | |
| 1248 JVM_ENTRY(jobjectArray, jmm_DumpThreads(JNIEnv *env, jlongArray thread_ids, jboolean locked_monitors, jboolean locked_synchronizers)) | |
| 1249 ResourceMark rm(THREAD); | |
| 1250 | |
| 1251 if (JDK_Version::is_gte_jdk16x_version()) { | |
| 1252 // make sure the AbstractOwnableSynchronizer klass is loaded before taking thread snapshots | |
| 1253 java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(CHECK_NULL); | |
| 1254 } | |
| 1255 | |
| 1256 typeArrayOop ta = typeArrayOop(JNIHandles::resolve(thread_ids)); | |
| 1257 int num_threads = (ta != NULL ? ta->length() : 0); | |
| 1258 typeArrayHandle ids_ah(THREAD, ta); | |
| 1259 | |
| 1260 ThreadDumpResult dump_result(num_threads); // can safepoint | |
| 1261 | |
| 1262 if (ids_ah() != NULL) { | |
| 1263 | |
| 1264 // validate the thread id array | |
| 1265 validate_thread_id_array(ids_ah, CHECK_NULL); | |
| 1266 | |
| 1267 // obtain thread dump of a specific list of threads | |
| 1268 do_thread_dump(&dump_result, | |
| 1269 ids_ah, | |
| 1270 num_threads, | |
| 1271 -1, /* entire stack */ | |
| 1272 (locked_monitors ? true : false), /* with locked monitors */ | |
| 1273 (locked_synchronizers ? true : false), /* with locked synchronizers */ | |
| 1274 CHECK_NULL); | |
| 1275 } else { | |
| 1276 // obtain thread dump of all threads | |
| 1277 VM_ThreadDump op(&dump_result, | |
| 1278 -1, /* entire stack */ | |
| 1279 (locked_monitors ? true : false), /* with locked monitors */ | |
| 1280 (locked_synchronizers ? true : false) /* with locked synchronizers */); | |
| 1281 VMThread::execute(&op); | |
| 1282 } | |
| 1283 | |
| 1284 int num_snapshots = dump_result.num_snapshots(); | |
| 1285 | |
| 1286 // create the result ThreadInfo[] object | |
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1287 Klass* k = Management::java_lang_management_ThreadInfo_klass(CHECK_NULL); |
| 0 | 1288 instanceKlassHandle ik (THREAD, k); |
| 1289 objArrayOop r = oopFactory::new_objArray(ik(), num_snapshots, CHECK_NULL); | |
| 1290 objArrayHandle result_h(THREAD, r); | |
| 1291 | |
| 1292 int index = 0; | |
| 1293 for (ThreadSnapshot* ts = dump_result.snapshots(); ts != NULL; ts = ts->next(), index++) { | |
| 1294 if (ts->threadObj() == NULL) { | |
| 1295 // if the thread does not exist or now it is terminated, set threadinfo to NULL | |
| 1296 result_h->obj_at_put(index, NULL); | |
| 1297 continue; | |
| 1298 } | |
| 1299 | |
| 1300 ThreadStackTrace* stacktrace = ts->get_stack_trace(); | |
| 1301 assert(stacktrace != NULL, "Must have a stack trace dumped"); | |
| 1302 | |
| 1303 // Create Object[] filled with locked monitors | |
| 1304 // Create int[] filled with the stack depth where a monitor was locked | |
| 1305 int num_frames = stacktrace->get_stack_depth(); | |
| 1306 int num_locked_monitors = stacktrace->num_jni_locked_monitors(); | |
| 1307 | |
| 1308 // Count the total number of locked monitors | |
| 1309 for (int i = 0; i < num_frames; i++) { | |
| 1310 StackFrameInfo* frame = stacktrace->stack_frame_at(i); | |
| 1311 num_locked_monitors += frame->num_locked_monitors(); | |
| 1312 } | |
| 1313 | |
| 1314 objArrayHandle monitors_array; | |
| 1315 typeArrayHandle depths_array; | |
| 1316 objArrayHandle synchronizers_array; | |
| 1317 | |
| 1318 if (locked_monitors) { | |
| 1319 // Constructs Object[] and int[] to contain the object monitor and the stack depth | |
| 1320 // where the thread locked it | |
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1321 objArrayOop array = oopFactory::new_objArray(SystemDictionary::Object_klass(), num_locked_monitors, CHECK_NULL); |
| 0 | 1322 objArrayHandle mh(THREAD, array); |
| 1323 monitors_array = mh; | |
| 1324 | |
| 1325 typeArrayOop tarray = oopFactory::new_typeArray(T_INT, num_locked_monitors, CHECK_NULL); | |
| 1326 typeArrayHandle dh(THREAD, tarray); | |
| 1327 depths_array = dh; | |
| 1328 | |
| 1329 int count = 0; | |
| 1330 int j = 0; | |
| 1331 for (int depth = 0; depth < num_frames; depth++) { | |
| 1332 StackFrameInfo* frame = stacktrace->stack_frame_at(depth); | |
| 1333 int len = frame->num_locked_monitors(); | |
| 1334 GrowableArray<oop>* locked_monitors = frame->locked_monitors(); | |
| 1335 for (j = 0; j < len; j++) { | |
| 1336 oop monitor = locked_monitors->at(j); | |
| 1337 assert(monitor != NULL && monitor->is_instance(), "must be a Java object"); | |
| 1338 monitors_array->obj_at_put(count, monitor); | |
| 1339 depths_array->int_at_put(count, depth); | |
| 1340 count++; | |
| 1341 } | |
| 1342 } | |
| 1343 | |
| 1344 GrowableArray<oop>* jni_locked_monitors = stacktrace->jni_locked_monitors(); | |
| 1345 for (j = 0; j < jni_locked_monitors->length(); j++) { | |
| 1346 oop object = jni_locked_monitors->at(j); | |
| 1347 assert(object != NULL && object->is_instance(), "must be a Java object"); | |
| 1348 monitors_array->obj_at_put(count, object); | |
| 1349 // Monitor locked via JNI MonitorEnter call doesn't have stack depth info | |
| 1350 depths_array->int_at_put(count, -1); | |
| 1351 count++; | |
| 1352 } | |
| 1353 assert(count == num_locked_monitors, "number of locked monitors doesn't match"); | |
| 1354 } | |
| 1355 | |
| 1356 if (locked_synchronizers) { | |
| 1357 // Create Object[] filled with locked JSR-166 synchronizers | |
| 1358 assert(ts->threadObj() != NULL, "Must be a valid JavaThread"); | |
| 1359 ThreadConcurrentLocks* tcl = ts->get_concurrent_locks(); | |
| 1360 GrowableArray<instanceOop>* locks = (tcl != NULL ? tcl->owned_locks() : NULL); | |
| 1361 int num_locked_synchronizers = (locks != NULL ? locks->length() : 0); | |
| 1362 | |
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1363 objArrayOop array = oopFactory::new_objArray(SystemDictionary::Object_klass(), num_locked_synchronizers, CHECK_NULL); |
| 0 | 1364 objArrayHandle sh(THREAD, array); |
| 1365 synchronizers_array = sh; | |
| 1366 | |
| 1367 for (int k = 0; k < num_locked_synchronizers; k++) { | |
| 1368 synchronizers_array->obj_at_put(k, locks->at(k)); | |
| 1369 } | |
| 1370 } | |
| 1371 | |
| 1372 // Create java.lang.management.ThreadInfo object | |
| 1373 instanceOop info_obj = Management::create_thread_info_instance(ts, | |
| 1374 monitors_array, | |
| 1375 depths_array, | |
| 1376 synchronizers_array, | |
| 1377 CHECK_NULL); | |
| 1378 result_h->obj_at_put(index, info_obj); | |
| 1379 } | |
| 1380 | |
| 1381 return (jobjectArray) JNIHandles::make_local(env, result_h()); | |
| 1382 JVM_END | |
| 1383 | |
| 1384 // Returns an array of Class objects. | |
| 1385 JVM_ENTRY(jobjectArray, jmm_GetLoadedClasses(JNIEnv *env)) | |
| 1386 ResourceMark rm(THREAD); | |
| 1387 | |
| 1388 LoadedClassesEnumerator lce(THREAD); // Pass current Thread as parameter | |
| 1389 | |
| 1390 int num_classes = lce.num_loaded_classes(); | |
| 1142 | 1391 objArrayOop r = oopFactory::new_objArray(SystemDictionary::Class_klass(), num_classes, CHECK_0); |
| 0 | 1392 objArrayHandle classes_ah(THREAD, r); |
| 1393 | |
| 1394 for (int i = 0; i < num_classes; i++) { | |
| 1395 KlassHandle kh = lce.get_klass(i); | |
| 6983 | 1396 oop mirror = kh()->java_mirror(); |
| 0 | 1397 classes_ah->obj_at_put(i, mirror); |
| 1398 } | |
| 1399 | |
| 1400 return (jobjectArray) JNIHandles::make_local(env, classes_ah()); | |
| 1401 JVM_END | |
| 1402 | |
| 1403 // Reset statistic. Return true if the requested statistic is reset. | |
| 1404 // Otherwise, return false. | |
| 1405 // | |
| 1406 // Input parameters: | |
| 1407 // obj - specify which instance the statistic associated with to be reset | |
| 1408 // For PEAK_POOL_USAGE stat, obj is required to be a memory pool object. | |
| 1409 // For THREAD_CONTENTION_COUNT and TIME stat, obj is required to be a thread ID. | |
| 1410 // type - the type of statistic to be reset | |
| 1411 // | |
| 1412 JVM_ENTRY(jboolean, jmm_ResetStatistic(JNIEnv *env, jvalue obj, jmmStatisticType type)) | |
| 1413 ResourceMark rm(THREAD); | |
| 1414 | |
| 1415 switch (type) { | |
| 1416 case JMM_STAT_PEAK_THREAD_COUNT: | |
| 1417 ThreadService::reset_peak_thread_count(); | |
| 1418 return true; | |
| 1419 | |
| 1420 case JMM_STAT_THREAD_CONTENTION_COUNT: | |
| 1421 case JMM_STAT_THREAD_CONTENTION_TIME: { | |
| 1422 jlong tid = obj.j; | |
| 1423 if (tid < 0) { | |
| 1424 THROW_(vmSymbols::java_lang_IllegalArgumentException(), JNI_FALSE); | |
| 1425 } | |
| 1426 | |
| 1427 // Look for the JavaThread of this given tid | |
| 1428 MutexLockerEx ml(Threads_lock); | |
| 1429 if (tid == 0) { | |
| 1430 // reset contention statistics for all threads if tid == 0 | |
| 1431 for (JavaThread* java_thread = Threads::first(); java_thread != NULL; java_thread = java_thread->next()) { | |
| 1432 if (type == JMM_STAT_THREAD_CONTENTION_COUNT) { | |
| 1433 ThreadService::reset_contention_count_stat(java_thread); | |
| 1434 } else { | |
| 1435 ThreadService::reset_contention_time_stat(java_thread); | |
| 1436 } | |
| 1437 } | |
| 1438 } else { | |
| 1439 // reset contention statistics for a given thread | |
| 20393 | 1440 JavaThread* java_thread = Threads::find_java_thread_from_java_tid(tid); |
| 0 | 1441 if (java_thread == NULL) { |
| 1442 return false; | |
| 1443 } | |
| 1444 | |
| 1445 if (type == JMM_STAT_THREAD_CONTENTION_COUNT) { | |
| 1446 ThreadService::reset_contention_count_stat(java_thread); | |
| 1447 } else { | |
| 1448 ThreadService::reset_contention_time_stat(java_thread); | |
| 1449 } | |
| 1450 } | |
| 1451 return true; | |
| 1452 break; | |
| 1453 } | |
| 1454 case JMM_STAT_PEAK_POOL_USAGE: { | |
| 1455 jobject o = obj.l; | |
| 1456 if (o == NULL) { | |
| 1457 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_FALSE); | |
| 1458 } | |
| 1459 | |
| 1460 oop pool_obj = JNIHandles::resolve(o); | |
| 1461 assert(pool_obj->is_instance(), "Should be an instanceOop"); | |
| 1462 instanceHandle ph(THREAD, (instanceOop) pool_obj); | |
| 1463 | |
| 1464 MemoryPool* pool = MemoryService::get_memory_pool(ph); | |
| 1465 if (pool != NULL) { | |
| 1466 pool->reset_peak_memory_usage(); | |
| 1467 return true; | |
| 1468 } | |
| 1469 break; | |
| 1470 } | |
| 1471 case JMM_STAT_GC_STAT: { | |
| 1472 jobject o = obj.l; | |
| 1473 if (o == NULL) { | |
| 1474 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_FALSE); | |
| 1475 } | |
| 1476 | |
| 1477 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(o, CHECK_0); | |
| 1478 if (mgr != NULL) { | |
| 1479 mgr->reset_gc_stat(); | |
| 1480 return true; | |
| 1481 } | |
| 1482 break; | |
| 1483 } | |
| 1484 default: | |
| 1485 assert(0, "Unknown Statistic Type"); | |
| 1486 } | |
| 1487 return false; | |
| 1488 JVM_END | |
| 1489 | |
| 1490 // Returns the fast estimate of CPU time consumed by | |
| 1491 // a given thread (in nanoseconds). | |
| 1492 // If thread_id == 0, return CPU time for the current thread. | |
| 1493 JVM_ENTRY(jlong, jmm_GetThreadCpuTime(JNIEnv *env, jlong thread_id)) | |
| 1494 if (!os::is_thread_cpu_time_supported()) { | |
| 1495 return -1; | |
| 1496 } | |
| 1497 | |
| 1498 if (thread_id < 0) { | |
| 1499 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1500 "Invalid thread ID", -1); | |
| 1501 } | |
| 1502 | |
| 1503 JavaThread* java_thread = NULL; | |
| 1504 if (thread_id == 0) { | |
| 1505 // current thread | |
| 1506 return os::current_thread_cpu_time(); | |
| 1507 } else { | |
| 1508 MutexLockerEx ml(Threads_lock); | |
| 20393 | 1509 java_thread = Threads::find_java_thread_from_java_tid(thread_id); |
| 0 | 1510 if (java_thread != NULL) { |
| 1511 return os::thread_cpu_time((Thread*) java_thread); | |
| 1512 } | |
| 1513 } | |
| 1514 return -1; | |
| 1515 JVM_END | |
| 1516 | |
| 1517 // Returns a String array of all VM global flag names | |
| 1518 JVM_ENTRY(jobjectArray, jmm_GetVMGlobalNames(JNIEnv *env)) | |
| 1519 // last flag entry is always NULL, so subtract 1 | |
| 1520 int nFlags = (int) Flag::numFlags - 1; | |
| 1521 // allocate a temp array | |
| 1142 | 1522 objArrayOop r = oopFactory::new_objArray(SystemDictionary::String_klass(), |
| 0 | 1523 nFlags, CHECK_0); |
| 1524 objArrayHandle flags_ah(THREAD, r); | |
| 1525 int num_entries = 0; | |
| 1526 for (int i = 0; i < nFlags; i++) { | |
| 1527 Flag* flag = &Flag::flags[i]; | |
|
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1528 // Exclude notproduct and develop flags in product builds. |
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1529 if (flag->is_constant_in_binary()) { |
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1530 continue; |
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1531 } |
| 350 | 1532 // Exclude the locked (experimental, diagnostic) flags |
| 0 | 1533 if (flag->is_unlocked() || flag->is_unlocker()) { |
|
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1534 Handle s = java_lang_String::create_from_str(flag->_name, CHECK_0); |
| 0 | 1535 flags_ah->obj_at_put(num_entries, s()); |
| 1536 num_entries++; | |
| 1537 } | |
| 1538 } | |
| 1539 | |
| 1540 if (num_entries < nFlags) { | |
| 1541 // Return array of right length | |
| 1142 | 1542 objArrayOop res = oopFactory::new_objArray(SystemDictionary::String_klass(), num_entries, CHECK_0); |
| 0 | 1543 for(int i = 0; i < num_entries; i++) { |
| 1544 res->obj_at_put(i, flags_ah->obj_at(i)); | |
| 1545 } | |
| 1546 return (jobjectArray)JNIHandles::make_local(env, res); | |
| 1547 } | |
| 1548 | |
| 1549 return (jobjectArray)JNIHandles::make_local(env, flags_ah()); | |
| 1550 JVM_END | |
| 1551 | |
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1552 // Utility function used by jmm_GetVMGlobals. Returns false if flag type |
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1553 // can't be determined, true otherwise. If false is returned, then *global |
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1554 // will be incomplete and invalid. |
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1555 bool add_global_entry(JNIEnv* env, Handle name, jmmVMGlobal *global, Flag *flag, TRAPS) { |
| 0 | 1556 Handle flag_name; |
| 1557 if (name() == NULL) { | |
|
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1558 flag_name = java_lang_String::create_from_str(flag->_name, CHECK_false); |
| 0 | 1559 } else { |
| 1560 flag_name = name; | |
| 1561 } | |
| 1562 global->name = (jstring)JNIHandles::make_local(env, flag_name()); | |
| 1563 | |
| 1564 if (flag->is_bool()) { | |
| 1565 global->value.z = flag->get_bool() ? JNI_TRUE : JNI_FALSE; | |
| 1566 global->type = JMM_VMGLOBAL_TYPE_JBOOLEAN; | |
| 1567 } else if (flag->is_intx()) { | |
| 1568 global->value.j = (jlong)flag->get_intx(); | |
| 1569 global->type = JMM_VMGLOBAL_TYPE_JLONG; | |
| 1570 } else if (flag->is_uintx()) { | |
| 1571 global->value.j = (jlong)flag->get_uintx(); | |
| 1572 global->type = JMM_VMGLOBAL_TYPE_JLONG; | |
|
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1573 } else if (flag->is_uint64_t()) { |
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1574 global->value.j = (jlong)flag->get_uint64_t(); |
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1575 global->type = JMM_VMGLOBAL_TYPE_JLONG; |
| 0 | 1576 } else if (flag->is_ccstr()) { |
|
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1577 Handle str = java_lang_String::create_from_str(flag->get_ccstr(), CHECK_false); |
| 0 | 1578 global->value.l = (jobject)JNIHandles::make_local(env, str()); |
| 1579 global->type = JMM_VMGLOBAL_TYPE_JSTRING; | |
|
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1580 } else { |
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1581 global->type = JMM_VMGLOBAL_TYPE_UNKNOWN; |
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1582 return false; |
| 0 | 1583 } |
| 1584 | |
| 1585 global->writeable = flag->is_writeable(); | |
| 1586 global->external = flag->is_external(); | |
|
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1587 switch (flag->get_origin()) { |
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1588 case Flag::DEFAULT: |
| 0 | 1589 global->origin = JMM_VMGLOBAL_ORIGIN_DEFAULT; |
| 1590 break; | |
|
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1591 case Flag::COMMAND_LINE: |
| 0 | 1592 global->origin = JMM_VMGLOBAL_ORIGIN_COMMAND_LINE; |
| 1593 break; | |
|
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1594 case Flag::ENVIRON_VAR: |
| 0 | 1595 global->origin = JMM_VMGLOBAL_ORIGIN_ENVIRON_VAR; |
| 1596 break; | |
|
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1597 case Flag::CONFIG_FILE: |
| 0 | 1598 global->origin = JMM_VMGLOBAL_ORIGIN_CONFIG_FILE; |
| 1599 break; | |
|
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1600 case Flag::MANAGEMENT: |
| 0 | 1601 global->origin = JMM_VMGLOBAL_ORIGIN_MANAGEMENT; |
| 1602 break; | |
|
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1603 case Flag::ERGONOMIC: |
| 0 | 1604 global->origin = JMM_VMGLOBAL_ORIGIN_ERGONOMIC; |
| 1605 break; | |
| 1606 default: | |
| 1607 global->origin = JMM_VMGLOBAL_ORIGIN_OTHER; | |
| 1608 } | |
|
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1609 |
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|
1610 return true; |
| 0 | 1611 } |
| 1612 | |
| 1613 // Fill globals array of count length with jmmVMGlobal entries | |
| 1614 // specified by names. If names == NULL, fill globals array | |
| 1615 // with all Flags. Return value is number of entries | |
| 1616 // created in globals. | |
| 1617 // If a Flag with a given name in an array element does not | |
| 1618 // exist, globals[i].name will be set to NULL. | |
| 1619 JVM_ENTRY(jint, jmm_GetVMGlobals(JNIEnv *env, | |
| 1620 jobjectArray names, | |
| 1621 jmmVMGlobal *globals, | |
| 1622 jint count)) | |
| 1623 | |
| 1624 | |
| 1625 if (globals == NULL) { | |
| 1626 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1627 } | |
| 1628 | |
| 1629 ResourceMark rm(THREAD); | |
| 1630 | |
| 1631 if (names != NULL) { | |
| 1632 // return the requested globals | |
| 1633 objArrayOop ta = objArrayOop(JNIHandles::resolve_non_null(names)); | |
| 1634 objArrayHandle names_ah(THREAD, ta); | |
| 1635 // Make sure we have a String array | |
|
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1636 Klass* element_klass = ObjArrayKlass::cast(names_ah->klass())->element_klass(); |
| 1142 | 1637 if (element_klass != SystemDictionary::String_klass()) { |
| 0 | 1638 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), |
| 1639 "Array element type is not String class", 0); | |
| 1640 } | |
| 1641 | |
| 1642 int names_length = names_ah->length(); | |
| 1643 int num_entries = 0; | |
| 1644 for (int i = 0; i < names_length && i < count; i++) { | |
| 1645 oop s = names_ah->obj_at(i); | |
| 1646 if (s == NULL) { | |
| 1647 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1648 } | |
| 1649 | |
| 1650 Handle sh(THREAD, s); | |
| 1651 char* str = java_lang_String::as_utf8_string(s); | |
| 1652 Flag* flag = Flag::find_flag(str, strlen(str)); | |
|
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1653 if (flag != NULL && |
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1654 add_global_entry(env, sh, &globals[i], flag, THREAD)) { |
| 0 | 1655 num_entries++; |
| 1656 } else { | |
| 1657 globals[i].name = NULL; | |
| 1658 } | |
| 1659 } | |
| 1660 return num_entries; | |
| 1661 } else { | |
| 1662 // return all globals if names == NULL | |
| 1663 | |
| 1664 // last flag entry is always NULL, so subtract 1 | |
| 1665 int nFlags = (int) Flag::numFlags - 1; | |
| 1666 Handle null_h; | |
| 1667 int num_entries = 0; | |
| 1668 for (int i = 0; i < nFlags && num_entries < count; i++) { | |
| 1669 Flag* flag = &Flag::flags[i]; | |
|
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1670 // Exclude notproduct and develop flags in product builds. |
|
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1671 if (flag->is_constant_in_binary()) { |
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1672 continue; |
|
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|
1673 } |
| 350 | 1674 // Exclude the locked (diagnostic, experimental) flags |
|
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1675 if ((flag->is_unlocked() || flag->is_unlocker()) && |
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1676 add_global_entry(env, null_h, &globals[num_entries], flag, THREAD)) { |
| 0 | 1677 num_entries++; |
| 1678 } | |
| 1679 } | |
| 1680 return num_entries; | |
| 1681 } | |
| 1682 JVM_END | |
| 1683 | |
| 1684 JVM_ENTRY(void, jmm_SetVMGlobal(JNIEnv *env, jstring flag_name, jvalue new_value)) | |
| 1685 ResourceMark rm(THREAD); | |
| 1686 | |
| 1687 oop fn = JNIHandles::resolve_external_guard(flag_name); | |
| 1688 if (fn == NULL) { | |
| 1689 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 1690 "The flag name cannot be null."); | |
| 1691 } | |
| 1692 char* name = java_lang_String::as_utf8_string(fn); | |
| 1693 Flag* flag = Flag::find_flag(name, strlen(name)); | |
| 1694 if (flag == NULL) { | |
| 1695 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1696 "Flag does not exist."); | |
| 1697 } | |
| 1698 if (!flag->is_writeable()) { | |
| 1699 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1700 "This flag is not writeable."); | |
| 1701 } | |
| 1702 | |
| 20248 | 1703 bool succeed = false; |
| 0 | 1704 if (flag->is_bool()) { |
| 1705 bool bvalue = (new_value.z == JNI_TRUE ? true : false); | |
|
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1706 succeed = CommandLineFlags::boolAtPut(name, &bvalue, Flag::MANAGEMENT); |
| 0 | 1707 } else if (flag->is_intx()) { |
|
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1708 intx ivalue = (intx)new_value.j; |
|
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1709 succeed = CommandLineFlags::intxAtPut(name, &ivalue, Flag::MANAGEMENT); |
| 0 | 1710 } else if (flag->is_uintx()) { |
|
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1711 uintx uvalue = (uintx)new_value.j; |
|
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1712 |
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1713 if (strncmp(name, "MaxHeapFreeRatio", 17) == 0) { |
|
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|
1714 FormatBuffer<80> err_msg("%s", ""); |
|
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1715 if (!Arguments::verify_MaxHeapFreeRatio(err_msg, uvalue)) { |
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1716 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), err_msg.buffer()); |
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1717 } |
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|
1718 } else if (strncmp(name, "MinHeapFreeRatio", 17) == 0) { |
|
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|
1719 FormatBuffer<80> err_msg("%s", ""); |
|
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1720 if (!Arguments::verify_MinHeapFreeRatio(err_msg, uvalue)) { |
|
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1721 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), err_msg.buffer()); |
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1722 } |
|
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|
1723 } |
|
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|
1724 succeed = CommandLineFlags::uintxAtPut(name, &uvalue, Flag::MANAGEMENT); |
|
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1725 } else if (flag->is_uint64_t()) { |
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|
1726 uint64_t uvalue = (uint64_t)new_value.j; |
|
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|
1727 succeed = CommandLineFlags::uint64_tAtPut(name, &uvalue, Flag::MANAGEMENT); |
| 0 | 1728 } else if (flag->is_ccstr()) { |
| 1729 oop str = JNIHandles::resolve_external_guard(new_value.l); | |
| 1730 if (str == NULL) { | |
| 1731 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 1732 } | |
| 1733 ccstr svalue = java_lang_String::as_utf8_string(str); | |
|
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|
1734 succeed = CommandLineFlags::ccstrAtPut(name, &svalue, Flag::MANAGEMENT); |
| 20248 | 1735 if (succeed) { |
| 1736 FREE_C_HEAP_ARRAY(char, svalue, mtInternal); | |
| 1737 } | |
| 0 | 1738 } |
| 1739 assert(succeed, "Setting flag should succeed"); | |
| 1740 JVM_END | |
| 1741 | |
| 1742 class ThreadTimesClosure: public ThreadClosure { | |
| 1743 private: | |
|
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|
1744 objArrayHandle _names_strings; |
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|
1745 char **_names_chars; |
|
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|
1746 typeArrayHandle _times; |
| 0 | 1747 int _names_len; |
| 1748 int _times_len; | |
| 1749 int _count; | |
| 1750 | |
| 1751 public: | |
|
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|
1752 ThreadTimesClosure(objArrayHandle names, typeArrayHandle times); |
|
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|
1753 ~ThreadTimesClosure(); |
| 0 | 1754 virtual void do_thread(Thread* thread); |
|
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|
1755 void do_unlocked(); |
| 0 | 1756 int count() { return _count; } |
| 1757 }; | |
| 1758 | |
|
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|
1759 ThreadTimesClosure::ThreadTimesClosure(objArrayHandle names, |
|
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|
1760 typeArrayHandle times) { |
|
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|
1761 assert(names() != NULL, "names was NULL"); |
|
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|
1762 assert(times() != NULL, "times was NULL"); |
|
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1763 _names_strings = names; |
| 0 | 1764 _names_len = names->length(); |
|
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|
1765 _names_chars = NEW_C_HEAP_ARRAY(char*, _names_len, mtInternal); |
| 0 | 1766 _times = times; |
| 1767 _times_len = times->length(); | |
| 1768 _count = 0; | |
| 1769 } | |
| 1770 | |
|
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1771 // |
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1772 // Called with Threads_lock held |
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1773 // |
| 0 | 1774 void ThreadTimesClosure::do_thread(Thread* thread) { |
| 1775 assert(thread != NULL, "thread was NULL"); | |
| 1776 | |
| 1777 // exclude externally visible JavaThreads | |
| 1778 if (thread->is_Java_thread() && !thread->is_hidden_from_external_view()) { | |
| 1779 return; | |
| 1780 } | |
| 1781 | |
| 1782 if (_count >= _names_len || _count >= _times_len) { | |
| 1783 // skip if the result array is not big enough | |
| 1784 return; | |
| 1785 } | |
| 1786 | |
| 1787 EXCEPTION_MARK; | |
|
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|
1788 ResourceMark rm(THREAD); // thread->name() uses ResourceArea |
| 0 | 1789 |
| 1790 assert(thread->name() != NULL, "All threads should have a name"); | |
|
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|
1791 _names_chars[_count] = strdup(thread->name()); |
| 0 | 1792 _times->long_at_put(_count, os::is_thread_cpu_time_supported() ? |
| 1793 os::thread_cpu_time(thread) : -1); | |
| 1794 _count++; | |
| 1795 } | |
| 1796 | |
|
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|
1797 // Called without Threads_lock, we can allocate String objects. |
|
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1798 void ThreadTimesClosure::do_unlocked() { |
|
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1799 |
|
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|
1800 EXCEPTION_MARK; |
|
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|
1801 for (int i = 0; i < _count; i++) { |
|
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|
1802 Handle s = java_lang_String::create_from_str(_names_chars[i], CHECK); |
|
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1803 _names_strings->obj_at_put(i, s()); |
|
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|
1804 } |
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1805 } |
|
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|
1806 |
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1807 ThreadTimesClosure::~ThreadTimesClosure() { |
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1808 for (int i = 0; i < _count; i++) { |
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1809 free(_names_chars[i]); |
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1810 } |
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1811 FREE_C_HEAP_ARRAY(char *, _names_chars, mtInternal); |
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1812 } |
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1813 |
| 0 | 1814 // Fills names with VM internal thread names and times with the corresponding |
| 1815 // CPU times. If names or times is NULL, a NullPointerException is thrown. | |
| 1816 // If the element type of names is not String, an IllegalArgumentException is | |
| 1817 // thrown. | |
| 1818 // If an array is not large enough to hold all the entries, only the entries | |
| 1819 // that fit will be returned. Return value is the number of VM internal | |
| 1820 // threads entries. | |
| 1821 JVM_ENTRY(jint, jmm_GetInternalThreadTimes(JNIEnv *env, | |
| 1822 jobjectArray names, | |
| 1823 jlongArray times)) | |
| 1824 if (names == NULL || times == NULL) { | |
| 1825 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1826 } | |
| 1827 objArrayOop na = objArrayOop(JNIHandles::resolve_non_null(names)); | |
| 1828 objArrayHandle names_ah(THREAD, na); | |
| 1829 | |
| 1830 // Make sure we have a String array | |
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1831 Klass* element_klass = ObjArrayKlass::cast(names_ah->klass())->element_klass(); |
| 1142 | 1832 if (element_klass != SystemDictionary::String_klass()) { |
| 0 | 1833 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), |
| 1834 "Array element type is not String class", 0); | |
| 1835 } | |
| 1836 | |
| 1837 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(times)); | |
| 1838 typeArrayHandle times_ah(THREAD, ta); | |
| 1839 | |
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1840 ThreadTimesClosure ttc(names_ah, times_ah); |
| 0 | 1841 { |
| 1842 MutexLockerEx ml(Threads_lock); | |
| 1843 Threads::threads_do(&ttc); | |
| 1844 } | |
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1845 ttc.do_unlocked(); |
| 0 | 1846 return ttc.count(); |
| 1847 JVM_END | |
| 1848 | |
| 1849 static Handle find_deadlocks(bool object_monitors_only, TRAPS) { | |
| 1850 ResourceMark rm(THREAD); | |
| 1851 | |
| 1852 VM_FindDeadlocks op(!object_monitors_only /* also check concurrent locks? */); | |
| 1853 VMThread::execute(&op); | |
| 1854 | |
| 1855 DeadlockCycle* deadlocks = op.result(); | |
| 1856 if (deadlocks == NULL) { | |
| 1857 // no deadlock found and return | |
| 1858 return Handle(); | |
| 1859 } | |
| 1860 | |
| 1861 int num_threads = 0; | |
| 1862 DeadlockCycle* cycle; | |
| 1863 for (cycle = deadlocks; cycle != NULL; cycle = cycle->next()) { | |
| 1864 num_threads += cycle->num_threads(); | |
| 1865 } | |
| 1866 | |
| 1142 | 1867 objArrayOop r = oopFactory::new_objArray(SystemDictionary::Thread_klass(), num_threads, CHECK_NH); |
| 0 | 1868 objArrayHandle threads_ah(THREAD, r); |
| 1869 | |
| 1870 int index = 0; | |
| 1871 for (cycle = deadlocks; cycle != NULL; cycle = cycle->next()) { | |
| 1872 GrowableArray<JavaThread*>* deadlock_threads = cycle->threads(); | |
| 1873 int len = deadlock_threads->length(); | |
| 1874 for (int i = 0; i < len; i++) { | |
| 1875 threads_ah->obj_at_put(index, deadlock_threads->at(i)->threadObj()); | |
| 1876 index++; | |
| 1877 } | |
| 1878 } | |
| 1879 return threads_ah; | |
| 1880 } | |
| 1881 | |
| 1882 // Finds cycles of threads that are deadlocked involved in object monitors | |
| 1883 // and JSR-166 synchronizers. | |
| 1884 // Returns an array of Thread objects which are in deadlock, if any. | |
| 1885 // Otherwise, returns NULL. | |
| 1886 // | |
| 1887 // Input parameter: | |
| 1888 // object_monitors_only - if true, only check object monitors | |
| 1889 // | |
| 1890 JVM_ENTRY(jobjectArray, jmm_FindDeadlockedThreads(JNIEnv *env, jboolean object_monitors_only)) | |
| 1891 Handle result = find_deadlocks(object_monitors_only != 0, CHECK_0); | |
| 1892 return (jobjectArray) JNIHandles::make_local(env, result()); | |
| 1893 JVM_END | |
| 1894 | |
| 1895 // Finds cycles of threads that are deadlocked on monitor locks | |
| 1896 // Returns an array of Thread objects which are in deadlock, if any. | |
| 1897 // Otherwise, returns NULL. | |
| 1898 JVM_ENTRY(jobjectArray, jmm_FindMonitorDeadlockedThreads(JNIEnv *env)) | |
| 1899 Handle result = find_deadlocks(true, CHECK_0); | |
| 1900 return (jobjectArray) JNIHandles::make_local(env, result()); | |
| 1901 JVM_END | |
| 1902 | |
| 1903 // Gets the information about GC extension attributes including | |
| 1904 // the name of the attribute, its type, and a short description. | |
| 1905 // | |
| 1906 // Input parameters: | |
| 1907 // mgr - GC memory manager | |
| 1908 // info - caller allocated array of jmmExtAttributeInfo | |
| 1909 // count - number of elements of the info array | |
| 1910 // | |
| 1911 // Returns the number of GC extension attributes filled in the info array; or | |
| 1912 // -1 if info is not big enough | |
| 1913 // | |
| 1914 JVM_ENTRY(jint, jmm_GetGCExtAttributeInfo(JNIEnv *env, jobject mgr, jmmExtAttributeInfo* info, jint count)) | |
| 1915 // All GC memory managers have 1 attribute (number of GC threads) | |
| 1916 if (count == 0) { | |
| 1917 return 0; | |
| 1918 } | |
| 1919 | |
| 1920 if (info == NULL) { | |
| 1921 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1922 } | |
| 1923 | |
| 1924 info[0].name = "GcThreadCount"; | |
| 1925 info[0].type = 'I'; | |
| 1926 info[0].description = "Number of GC threads"; | |
| 1927 return 1; | |
| 1928 JVM_END | |
| 1929 | |
| 1930 // verify the given array is an array of java/lang/management/MemoryUsage objects | |
| 1931 // of a given length and return the objArrayOop | |
| 1932 static objArrayOop get_memory_usage_objArray(jobjectArray array, int length, TRAPS) { | |
| 1933 if (array == NULL) { | |
| 1934 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1935 } | |
| 1936 | |
| 1937 objArrayOop oa = objArrayOop(JNIHandles::resolve_non_null(array)); | |
| 1938 objArrayHandle array_h(THREAD, oa); | |
| 1939 | |
| 1940 // array must be of the given length | |
| 1941 if (length != array_h->length()) { | |
| 1942 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1943 "The length of the given MemoryUsage array does not match the number of memory pools.", 0); | |
| 1944 } | |
| 1945 | |
| 1946 // check if the element of array is of type MemoryUsage class | |
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1947 Klass* usage_klass = Management::java_lang_management_MemoryUsage_klass(CHECK_0); |
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1948 Klass* element_klass = ObjArrayKlass::cast(array_h->klass())->element_klass(); |
| 0 | 1949 if (element_klass != usage_klass) { |
| 1950 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1951 "The element type is not MemoryUsage class", 0); | |
| 1952 } | |
| 1953 | |
| 1954 return array_h(); | |
| 1955 } | |
| 1956 | |
| 1957 // Gets the statistics of the last GC of a given GC memory manager. | |
| 1958 // Input parameters: | |
| 1959 // obj - GarbageCollectorMXBean object | |
| 1960 // gc_stat - caller allocated jmmGCStat where: | |
| 1961 // a. before_gc_usage - array of MemoryUsage objects | |
| 1962 // b. after_gc_usage - array of MemoryUsage objects | |
| 1963 // c. gc_ext_attributes_values_size is set to the | |
| 1964 // gc_ext_attribute_values array allocated | |
| 1965 // d. gc_ext_attribute_values is a caller allocated array of jvalue. | |
| 1966 // | |
| 1967 // On return, | |
| 1968 // gc_index == 0 indicates no GC statistics available | |
| 1969 // | |
| 1970 // before_gc_usage and after_gc_usage - filled with per memory pool | |
| 1971 // before and after GC usage in the same order as the memory pools | |
| 1972 // returned by GetMemoryPools for a given GC memory manager. | |
| 1973 // num_gc_ext_attributes indicates the number of elements in | |
| 1974 // the gc_ext_attribute_values array is filled; or | |
| 1975 // -1 if the gc_ext_attributes_values array is not big enough | |
| 1976 // | |
| 1977 JVM_ENTRY(void, jmm_GetLastGCStat(JNIEnv *env, jobject obj, jmmGCStat *gc_stat)) | |
| 1978 ResourceMark rm(THREAD); | |
| 1979 | |
| 1980 if (gc_stat->gc_ext_attribute_values_size > 0 && gc_stat->gc_ext_attribute_values == NULL) { | |
| 1981 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 1982 } | |
| 1983 | |
| 1984 // Get the GCMemoryManager | |
| 1985 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK); | |
| 1986 | |
| 1987 // Make a copy of the last GC statistics | |
| 1988 // GC may occur while constructing the last GC information | |
| 1989 int num_pools = MemoryService::num_memory_pools(); | |
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1990 GCStatInfo stat(num_pools); |
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1991 if (mgr->get_last_gc_stat(&stat) == 0) { |
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1992 gc_stat->gc_index = 0; |
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1993 return; |
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1994 } |
| 0 | 1995 |
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1996 gc_stat->gc_index = stat.gc_index(); |
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1997 gc_stat->start_time = Management::ticks_to_ms(stat.start_time()); |
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1998 gc_stat->end_time = Management::ticks_to_ms(stat.end_time()); |
| 0 | 1999 |
| 2000 // Current implementation does not have GC extension attributes | |
| 2001 gc_stat->num_gc_ext_attributes = 0; | |
| 2002 | |
| 2003 // Fill the arrays of MemoryUsage objects with before and after GC | |
| 2004 // per pool memory usage | |
| 2005 objArrayOop bu = get_memory_usage_objArray(gc_stat->usage_before_gc, | |
| 2006 num_pools, | |
| 2007 CHECK); | |
| 2008 objArrayHandle usage_before_gc_ah(THREAD, bu); | |
| 2009 | |
| 2010 objArrayOop au = get_memory_usage_objArray(gc_stat->usage_after_gc, | |
| 2011 num_pools, | |
| 2012 CHECK); | |
| 2013 objArrayHandle usage_after_gc_ah(THREAD, au); | |
| 2014 | |
| 2015 for (int i = 0; i < num_pools; i++) { | |
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2016 Handle before_usage = MemoryService::create_MemoryUsage_obj(stat.before_gc_usage_for_pool(i), CHECK); |
| 0 | 2017 Handle after_usage; |
| 2018 | |
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2019 MemoryUsage u = stat.after_gc_usage_for_pool(i); |
| 0 | 2020 if (u.max_size() == 0 && u.used() > 0) { |
| 2021 // If max size == 0, this pool is a survivor space. | |
| 2022 // Set max size = -1 since the pools will be swapped after GC. | |
| 2023 MemoryUsage usage(u.init_size(), u.used(), u.committed(), (size_t)-1); | |
| 2024 after_usage = MemoryService::create_MemoryUsage_obj(usage, CHECK); | |
| 2025 } else { | |
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2026 after_usage = MemoryService::create_MemoryUsage_obj(stat.after_gc_usage_for_pool(i), CHECK); |
| 0 | 2027 } |
| 2028 usage_before_gc_ah->obj_at_put(i, before_usage()); | |
| 2029 usage_after_gc_ah->obj_at_put(i, after_usage()); | |
| 2030 } | |
| 2031 | |
| 2032 if (gc_stat->gc_ext_attribute_values_size > 0) { | |
| 2033 // Current implementation only has 1 attribute (number of GC threads) | |
| 2034 // The type is 'I' | |
| 2035 gc_stat->gc_ext_attribute_values[0].i = mgr->num_gc_threads(); | |
| 2036 } | |
| 2037 JVM_END | |
| 2038 | |
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2039 JVM_ENTRY(void, jmm_SetGCNotificationEnabled(JNIEnv *env, jobject obj, jboolean enabled)) |
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2040 ResourceMark rm(THREAD); |
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2041 // Get the GCMemoryManager |
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2042 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK); |
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2043 mgr->set_notification_enabled(enabled?true:false); |
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2044 JVM_END |
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2045 |
| 0 | 2046 // Dump heap - Returns 0 if succeeds. |
| 2047 JVM_ENTRY(jint, jmm_DumpHeap0(JNIEnv *env, jstring outputfile, jboolean live)) | |
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2048 #if INCLUDE_SERVICES |
| 0 | 2049 ResourceMark rm(THREAD); |
| 2050 oop on = JNIHandles::resolve_external_guard(outputfile); | |
| 2051 if (on == NULL) { | |
| 2052 THROW_MSG_(vmSymbols::java_lang_NullPointerException(), | |
| 2053 "Output file name cannot be null.", -1); | |
| 2054 } | |
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2055 char* name = java_lang_String::as_platform_dependent_str(on, CHECK_(-1)); |
| 0 | 2056 if (name == NULL) { |
| 2057 THROW_MSG_(vmSymbols::java_lang_NullPointerException(), | |
| 2058 "Output file name cannot be null.", -1); | |
| 2059 } | |
| 2060 HeapDumper dumper(live ? true : false); | |
| 2061 if (dumper.dump(name) != 0) { | |
| 2062 const char* errmsg = dumper.error_as_C_string(); | |
| 2063 THROW_MSG_(vmSymbols::java_io_IOException(), errmsg, -1); | |
| 2064 } | |
| 2065 return 0; | |
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2066 #else // INCLUDE_SERVICES |
| 0 | 2067 return -1; |
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2068 #endif // INCLUDE_SERVICES |
| 0 | 2069 JVM_END |
| 2070 | |
| 4133 | 2071 JVM_ENTRY(jobjectArray, jmm_GetDiagnosticCommands(JNIEnv *env)) |
| 2072 ResourceMark rm(THREAD); | |
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2073 GrowableArray<const char *>* dcmd_list = DCmdFactory::DCmd_list(DCmd_Source_MBean); |
| 4133 | 2074 objArrayOop cmd_array_oop = oopFactory::new_objArray(SystemDictionary::String_klass(), |
| 2075 dcmd_list->length(), CHECK_NULL); | |
| 2076 objArrayHandle cmd_array(THREAD, cmd_array_oop); | |
| 2077 for (int i = 0; i < dcmd_list->length(); i++) { | |
| 2078 oop cmd_name = java_lang_String::create_oop_from_str(dcmd_list->at(i), CHECK_NULL); | |
| 2079 cmd_array->obj_at_put(i, cmd_name); | |
| 2080 } | |
| 2081 return (jobjectArray) JNIHandles::make_local(env, cmd_array()); | |
| 2082 JVM_END | |
| 2083 | |
| 2084 JVM_ENTRY(void, jmm_GetDiagnosticCommandInfo(JNIEnv *env, jobjectArray cmds, | |
| 2085 dcmdInfo* infoArray)) | |
| 2086 if (cmds == NULL || infoArray == NULL) { | |
| 2087 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 2088 } | |
| 2089 | |
| 2090 ResourceMark rm(THREAD); | |
| 2091 | |
| 2092 objArrayOop ca = objArrayOop(JNIHandles::resolve_non_null(cmds)); | |
| 2093 objArrayHandle cmds_ah(THREAD, ca); | |
| 2094 | |
| 2095 // Make sure we have a String array | |
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2096 Klass* element_klass = ObjArrayKlass::cast(cmds_ah->klass())->element_klass(); |
| 4133 | 2097 if (element_klass != SystemDictionary::String_klass()) { |
| 2098 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2099 "Array element type is not String class"); | |
| 2100 } | |
| 2101 | |
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2102 GrowableArray<DCmdInfo *>* info_list = DCmdFactory::DCmdInfo_list(DCmd_Source_MBean); |
| 4133 | 2103 |
| 2104 int num_cmds = cmds_ah->length(); | |
| 2105 for (int i = 0; i < num_cmds; i++) { | |
| 2106 oop cmd = cmds_ah->obj_at(i); | |
| 2107 if (cmd == NULL) { | |
| 2108 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2109 "Command name cannot be null."); | |
| 2110 } | |
| 2111 char* cmd_name = java_lang_String::as_utf8_string(cmd); | |
| 2112 if (cmd_name == NULL) { | |
| 2113 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2114 "Command name cannot be null."); | |
| 2115 } | |
| 2116 int pos = info_list->find((void*)cmd_name,DCmdInfo::by_name); | |
| 2117 if (pos == -1) { | |
| 2118 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2119 "Unknown diagnostic command"); | |
| 2120 } | |
| 2121 DCmdInfo* info = info_list->at(pos); | |
| 2122 infoArray[i].name = info->name(); | |
| 2123 infoArray[i].description = info->description(); | |
| 2124 infoArray[i].impact = info->impact(); | |
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2125 JavaPermission p = info->permission(); |
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2126 infoArray[i].permission_class = p._class; |
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2127 infoArray[i].permission_name = p._name; |
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2128 infoArray[i].permission_action = p._action; |
| 4133 | 2129 infoArray[i].num_arguments = info->num_arguments(); |
| 2130 infoArray[i].enabled = info->is_enabled(); | |
| 2131 } | |
| 2132 JVM_END | |
| 2133 | |
| 2134 JVM_ENTRY(void, jmm_GetDiagnosticCommandArgumentsInfo(JNIEnv *env, | |
| 2135 jstring command, dcmdArgInfo* infoArray)) | |
| 2136 ResourceMark rm(THREAD); | |
| 2137 oop cmd = JNIHandles::resolve_external_guard(command); | |
| 2138 if (cmd == NULL) { | |
| 2139 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2140 "Command line cannot be null."); | |
| 2141 } | |
| 2142 char* cmd_name = java_lang_String::as_utf8_string(cmd); | |
| 2143 if (cmd_name == NULL) { | |
| 2144 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2145 "Command line content cannot be null."); | |
| 2146 } | |
| 2147 DCmd* dcmd = NULL; | |
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2148 DCmdFactory*factory = DCmdFactory::factory(DCmd_Source_MBean, cmd_name, |
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2149 strlen(cmd_name)); |
| 4133 | 2150 if (factory != NULL) { |
| 2151 dcmd = factory->create_resource_instance(NULL); | |
| 2152 } | |
| 2153 if (dcmd == NULL) { | |
| 2154 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2155 "Unknown diagnostic command"); | |
| 2156 } | |
| 2157 DCmdMark mark(dcmd); | |
| 2158 GrowableArray<DCmdArgumentInfo*>* array = dcmd->argument_info_array(); | |
| 2159 if (array->length() == 0) { | |
| 2160 return; | |
| 2161 } | |
| 2162 for (int i = 0; i < array->length(); i++) { | |
| 2163 infoArray[i].name = array->at(i)->name(); | |
| 2164 infoArray[i].description = array->at(i)->description(); | |
| 2165 infoArray[i].type = array->at(i)->type(); | |
| 2166 infoArray[i].default_string = array->at(i)->default_string(); | |
| 2167 infoArray[i].mandatory = array->at(i)->is_mandatory(); | |
| 2168 infoArray[i].option = array->at(i)->is_option(); | |
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2169 infoArray[i].multiple = array->at(i)->is_multiple(); |
| 4133 | 2170 infoArray[i].position = array->at(i)->position(); |
| 2171 } | |
| 2172 return; | |
| 2173 JVM_END | |
| 2174 | |
| 2175 JVM_ENTRY(jstring, jmm_ExecuteDiagnosticCommand(JNIEnv *env, jstring commandline)) | |
| 2176 ResourceMark rm(THREAD); | |
| 2177 oop cmd = JNIHandles::resolve_external_guard(commandline); | |
| 2178 if (cmd == NULL) { | |
| 2179 THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(), | |
| 2180 "Command line cannot be null."); | |
| 2181 } | |
| 2182 char* cmdline = java_lang_String::as_utf8_string(cmd); | |
| 2183 if (cmdline == NULL) { | |
| 2184 THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(), | |
| 2185 "Command line content cannot be null."); | |
| 2186 } | |
| 2187 bufferedStream output; | |
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2188 DCmd::parse_and_execute(DCmd_Source_MBean, &output, cmdline, ' ', CHECK_NULL); |
| 4133 | 2189 oop result = java_lang_String::create_oop_from_str(output.as_string(), CHECK_NULL); |
| 2190 return (jstring) JNIHandles::make_local(env, result); | |
| 2191 JVM_END | |
| 2192 | |
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2193 JVM_ENTRY(void, jmm_SetDiagnosticFrameworkNotificationEnabled(JNIEnv *env, jboolean enabled)) |
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2194 DCmdFactory::set_jmx_notification_enabled(enabled?true:false); |
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2195 JVM_END |
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2196 |
| 0 | 2197 jlong Management::ticks_to_ms(jlong ticks) { |
| 2198 assert(os::elapsed_frequency() > 0, "Must be non-zero"); | |
| 2199 return (jlong)(((double)ticks / (double)os::elapsed_frequency()) | |
| 2200 * (double)1000.0); | |
| 2201 } | |
| 20393 | 2202 #endif // INCLUDE_MANAGEMENT |
| 0 | 2203 |
| 20393 | 2204 // Gets an array containing the amount of memory allocated on the Java |
| 2205 // heap for a set of threads (in bytes). Each element of the array is | |
| 2206 // the amount of memory allocated for the thread ID specified in the | |
| 2207 // corresponding entry in the given array of thread IDs; or -1 if the | |
| 2208 // thread does not exist or has terminated. | |
| 2209 JVM_ENTRY(void, jmm_GetThreadAllocatedMemory(JNIEnv *env, jlongArray ids, | |
| 2210 jlongArray sizeArray)) | |
| 2211 // Check if threads is null | |
| 2212 if (ids == NULL || sizeArray == NULL) { | |
| 2213 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 2214 } | |
| 2215 | |
| 2216 ResourceMark rm(THREAD); | |
| 2217 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(ids)); | |
| 2218 typeArrayHandle ids_ah(THREAD, ta); | |
| 2219 | |
| 2220 typeArrayOop sa = typeArrayOop(JNIHandles::resolve_non_null(sizeArray)); | |
| 2221 typeArrayHandle sizeArray_h(THREAD, sa); | |
| 2222 | |
| 2223 // validate the thread id array | |
| 2224 validate_thread_id_array(ids_ah, CHECK); | |
| 2225 | |
| 2226 // sizeArray must be of the same length as the given array of thread IDs | |
| 2227 int num_threads = ids_ah->length(); | |
| 2228 if (num_threads != sizeArray_h->length()) { | |
| 2229 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2230 "The length of the given long array does not match the length of " | |
| 2231 "the given array of thread IDs"); | |
| 2232 } | |
| 2233 | |
| 2234 MutexLockerEx ml(Threads_lock); | |
| 2235 for (int i = 0; i < num_threads; i++) { | |
| 2236 JavaThread* java_thread = Threads::find_java_thread_from_java_tid(ids_ah->long_at(i)); | |
| 2237 if (java_thread != NULL) { | |
| 2238 sizeArray_h->long_at_put(i, java_thread->cooked_allocated_bytes()); | |
| 2239 } | |
| 2240 } | |
| 2241 JVM_END | |
| 2242 | |
| 2243 // Returns the CPU time consumed by a given thread (in nanoseconds). | |
| 2244 // If thread_id == 0, CPU time for the current thread is returned. | |
| 2245 // If user_sys_cpu_time = true, user level and system CPU time of | |
| 2246 // a given thread is returned; otherwise, only user level CPU time | |
| 2247 // is returned. | |
| 2248 JVM_ENTRY(jlong, jmm_GetThreadCpuTimeWithKind(JNIEnv *env, jlong thread_id, jboolean user_sys_cpu_time)) | |
| 2249 if (!os::is_thread_cpu_time_supported()) { | |
| 2250 return -1; | |
| 2251 } | |
| 2252 | |
| 2253 if (thread_id < 0) { | |
| 2254 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2255 "Invalid thread ID", -1); | |
| 2256 } | |
| 2257 | |
| 2258 JavaThread* java_thread = NULL; | |
| 2259 if (thread_id == 0) { | |
| 2260 // current thread | |
| 2261 return os::current_thread_cpu_time(user_sys_cpu_time != 0); | |
| 2262 } else { | |
| 2263 MutexLockerEx ml(Threads_lock); | |
| 2264 java_thread = Threads::find_java_thread_from_java_tid(thread_id); | |
| 2265 if (java_thread != NULL) { | |
| 2266 return os::thread_cpu_time((Thread*) java_thread, user_sys_cpu_time != 0); | |
| 2267 } | |
| 2268 } | |
| 2269 return -1; | |
| 2270 JVM_END | |
| 2271 | |
| 2272 // Gets an array containing the CPU times consumed by a set of threads | |
| 2273 // (in nanoseconds). Each element of the array is the CPU time for the | |
| 2274 // thread ID specified in the corresponding entry in the given array | |
| 2275 // of thread IDs; or -1 if the thread does not exist or has terminated. | |
| 2276 // If user_sys_cpu_time = true, the sum of user level and system CPU time | |
| 2277 // for the given thread is returned; otherwise, only user level CPU time | |
| 2278 // is returned. | |
| 2279 JVM_ENTRY(void, jmm_GetThreadCpuTimesWithKind(JNIEnv *env, jlongArray ids, | |
| 2280 jlongArray timeArray, | |
| 2281 jboolean user_sys_cpu_time)) | |
| 2282 // Check if threads is null | |
| 2283 if (ids == NULL || timeArray == NULL) { | |
| 2284 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 2285 } | |
| 2286 | |
| 2287 ResourceMark rm(THREAD); | |
| 2288 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(ids)); | |
| 2289 typeArrayHandle ids_ah(THREAD, ta); | |
| 2290 | |
| 2291 typeArrayOop tia = typeArrayOop(JNIHandles::resolve_non_null(timeArray)); | |
| 2292 typeArrayHandle timeArray_h(THREAD, tia); | |
| 2293 | |
| 2294 // validate the thread id array | |
| 2295 validate_thread_id_array(ids_ah, CHECK); | |
| 2296 | |
| 2297 // timeArray must be of the same length as the given array of thread IDs | |
| 2298 int num_threads = ids_ah->length(); | |
| 2299 if (num_threads != timeArray_h->length()) { | |
| 2300 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2301 "The length of the given long array does not match the length of " | |
| 2302 "the given array of thread IDs"); | |
| 2303 } | |
| 2304 | |
| 2305 MutexLockerEx ml(Threads_lock); | |
| 2306 for (int i = 0; i < num_threads; i++) { | |
| 2307 JavaThread* java_thread = Threads::find_java_thread_from_java_tid(ids_ah->long_at(i)); | |
| 2308 if (java_thread != NULL) { | |
| 2309 timeArray_h->long_at_put(i, os::thread_cpu_time((Thread*)java_thread, | |
| 2310 user_sys_cpu_time != 0)); | |
| 2311 } | |
| 2312 } | |
| 2313 JVM_END | |
| 2314 | |
| 2315 | |
| 2316 | |
| 2317 #if INCLUDE_MANAGEMENT | |
| 0 | 2318 const struct jmmInterface_1_ jmm_interface = { |
| 2319 NULL, | |
| 2320 NULL, | |
| 2321 jmm_GetVersion, | |
| 2322 jmm_GetOptionalSupport, | |
| 2323 jmm_GetInputArguments, | |
| 2324 jmm_GetThreadInfo, | |
| 2325 jmm_GetInputArgumentArray, | |
| 2326 jmm_GetMemoryPools, | |
| 2327 jmm_GetMemoryManagers, | |
| 2328 jmm_GetMemoryPoolUsage, | |
| 2329 jmm_GetPeakMemoryPoolUsage, | |
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2330 jmm_GetThreadAllocatedMemory, |
| 0 | 2331 jmm_GetMemoryUsage, |
| 2332 jmm_GetLongAttribute, | |
| 2333 jmm_GetBoolAttribute, | |
| 2334 jmm_SetBoolAttribute, | |
| 2335 jmm_GetLongAttributes, | |
| 2336 jmm_FindMonitorDeadlockedThreads, | |
| 2337 jmm_GetThreadCpuTime, | |
| 2338 jmm_GetVMGlobalNames, | |
| 2339 jmm_GetVMGlobals, | |
| 2340 jmm_GetInternalThreadTimes, | |
| 2341 jmm_ResetStatistic, | |
| 2342 jmm_SetPoolSensor, | |
| 2343 jmm_SetPoolThreshold, | |
| 2344 jmm_GetPoolCollectionUsage, | |
| 2345 jmm_GetGCExtAttributeInfo, | |
| 2346 jmm_GetLastGCStat, | |
| 2347 jmm_GetThreadCpuTimeWithKind, | |
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2348 jmm_GetThreadCpuTimesWithKind, |
| 0 | 2349 jmm_DumpHeap0, |
| 2350 jmm_FindDeadlockedThreads, | |
| 2351 jmm_SetVMGlobal, | |
| 2352 NULL, | |
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2353 jmm_DumpThreads, |
| 4133 | 2354 jmm_SetGCNotificationEnabled, |
| 2355 jmm_GetDiagnosticCommands, | |
| 2356 jmm_GetDiagnosticCommandInfo, | |
| 2357 jmm_GetDiagnosticCommandArgumentsInfo, | |
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2358 jmm_ExecuteDiagnosticCommand, |
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2359 jmm_SetDiagnosticFrameworkNotificationEnabled |
| 0 | 2360 }; |
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2361 #endif // INCLUDE_MANAGEMENT |
| 0 | 2362 |
| 2363 void* Management::get_jmm_interface(int version) { | |
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2364 #if INCLUDE_MANAGEMENT |
| 0 | 2365 if (version == JMM_VERSION_1_0) { |
| 2366 return (void*) &jmm_interface; | |
| 2367 } | |
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2368 #endif // INCLUDE_MANAGEMENT |
| 0 | 2369 return NULL; |
| 2370 } |