Mercurial > hg > truffle
annotate src/share/vm/services/management.cpp @ 12322:72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
Reviewed-by: dholmes, kvn
| author | twisti |
|---|---|
| date | Thu, 26 Sep 2013 12:07:53 -0700 |
| parents | a70566600baf |
| children | e4f478e7781b |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2013, 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" |
| 1972 | 42 #include "services/classLoadingService.hpp" |
| 4133 | 43 #include "services/diagnosticCommand.hpp" |
| 44 #include "services/diagnosticFramework.hpp" | |
| 1972 | 45 #include "services/heapDumper.hpp" |
| 4133 | 46 #include "services/jmm.h" |
| 1972 | 47 #include "services/lowMemoryDetector.hpp" |
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48 #include "services/gcNotifier.hpp" |
| 6197 | 49 #include "services/nmtDCmd.hpp" |
| 1972 | 50 #include "services/management.hpp" |
| 51 #include "services/memoryManager.hpp" | |
| 52 #include "services/memoryPool.hpp" | |
| 53 #include "services/memoryService.hpp" | |
| 54 #include "services/runtimeService.hpp" | |
| 55 #include "services/threadService.hpp" | |
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56 #include "utilities/macros.hpp" |
| 0 | 57 |
| 58 PerfVariable* Management::_begin_vm_creation_time = NULL; | |
| 59 PerfVariable* Management::_end_vm_creation_time = NULL; | |
| 60 PerfVariable* Management::_vm_init_done_time = NULL; | |
| 61 | |
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62 Klass* Management::_sensor_klass = NULL; |
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63 Klass* Management::_threadInfo_klass = NULL; |
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64 Klass* Management::_memoryUsage_klass = NULL; |
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65 Klass* Management::_memoryPoolMXBean_klass = NULL; |
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66 Klass* Management::_memoryManagerMXBean_klass = NULL; |
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67 Klass* Management::_garbageCollectorMXBean_klass = NULL; |
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68 Klass* Management::_managementFactory_klass = NULL; |
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69 Klass* Management::_garbageCollectorImpl_klass = NULL; |
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70 Klass* Management::_gcInfo_klass = NULL; |
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71 Klass* Management::_diagnosticCommandImpl_klass = NULL; |
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72 Klass* Management::_managementFactoryHelper_klass = NULL; |
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73 |
| 0 | 74 |
| 75 jmmOptionalSupport Management::_optional_support = {0}; | |
| 76 TimeStamp Management::_stamp; | |
| 77 | |
| 78 void management_init() { | |
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79 #if INCLUDE_MANAGEMENT |
| 0 | 80 Management::init(); |
| 81 ThreadService::init(); | |
| 82 RuntimeService::init(); | |
| 83 ClassLoadingService::init(); | |
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84 #else |
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85 ThreadService::init(); |
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86 // Make sure the VM version is initialized |
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87 // This is normally called by RuntimeService::init(). |
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88 // Since that is conditionalized out, we need to call it here. |
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89 Abstract_VM_Version::initialize(); |
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90 #endif // INCLUDE_MANAGEMENT |
| 0 | 91 } |
| 92 | |
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93 #if INCLUDE_MANAGEMENT |
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94 |
| 0 | 95 void Management::init() { |
| 96 EXCEPTION_MARK; | |
| 97 | |
| 98 // These counters are for java.lang.management API support. | |
| 99 // They are created even if -XX:-UsePerfData is set and in | |
| 100 // that case, they will be allocated on C heap. | |
| 101 | |
| 102 _begin_vm_creation_time = | |
| 103 PerfDataManager::create_variable(SUN_RT, "createVmBeginTime", | |
| 104 PerfData::U_None, CHECK); | |
| 105 | |
| 106 _end_vm_creation_time = | |
| 107 PerfDataManager::create_variable(SUN_RT, "createVmEndTime", | |
| 108 PerfData::U_None, CHECK); | |
| 109 | |
| 110 _vm_init_done_time = | |
| 111 PerfDataManager::create_variable(SUN_RT, "vmInitDoneTime", | |
| 112 PerfData::U_None, CHECK); | |
| 113 | |
| 114 // Initialize optional support | |
| 115 _optional_support.isLowMemoryDetectionSupported = 1; | |
| 116 _optional_support.isCompilationTimeMonitoringSupported = 1; | |
| 117 _optional_support.isThreadContentionMonitoringSupported = 1; | |
| 118 | |
| 119 if (os::is_thread_cpu_time_supported()) { | |
| 120 _optional_support.isCurrentThreadCpuTimeSupported = 1; | |
| 121 _optional_support.isOtherThreadCpuTimeSupported = 1; | |
| 122 } else { | |
| 123 _optional_support.isCurrentThreadCpuTimeSupported = 0; | |
| 124 _optional_support.isOtherThreadCpuTimeSupported = 0; | |
| 125 } | |
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126 |
| 0 | 127 _optional_support.isBootClassPathSupported = 1; |
| 128 _optional_support.isObjectMonitorUsageSupported = 1; | |
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129 #if INCLUDE_SERVICES |
| 0 | 130 // This depends on the heap inspector |
| 131 _optional_support.isSynchronizerUsageSupported = 1; | |
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132 #endif // INCLUDE_SERVICES |
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133 _optional_support.isThreadAllocatedMemorySupported = 1; |
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134 _optional_support.isRemoteDiagnosticCommandsSupported = 1; |
| 4133 | 135 |
| 4773 | 136 // Registration of the diagnostic commands |
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137 DCmdRegistrant::register_dcmds(); |
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138 DCmdRegistrant::register_dcmds_ext(); |
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139 uint32_t full_export = DCmd_Source_Internal | DCmd_Source_AttachAPI |
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140 | DCmd_Source_MBean; |
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141 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<NMTDCmd>(full_export, true, false)); |
| 0 | 142 } |
| 143 | |
| 144 void Management::initialize(TRAPS) { | |
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145 // Start the service thread |
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146 ServiceThread::initialize(); |
| 0 | 147 |
| 148 if (ManagementServer) { | |
| 149 ResourceMark rm(THREAD); | |
| 150 HandleMark hm(THREAD); | |
| 151 | |
| 152 // Load and initialize the sun.management.Agent class | |
| 153 // invoke startAgent method to start the management server | |
| 154 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); | |
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155 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), |
| 0 | 156 loader, |
| 157 Handle(), | |
| 158 true, | |
| 159 CHECK); | |
| 160 instanceKlassHandle ik (THREAD, k); | |
| 161 | |
| 162 JavaValue result(T_VOID); | |
| 163 JavaCalls::call_static(&result, | |
| 164 ik, | |
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165 vmSymbols::startAgent_name(), |
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166 vmSymbols::void_method_signature(), |
| 0 | 167 CHECK); |
| 168 } | |
| 169 } | |
| 170 | |
| 171 void Management::get_optional_support(jmmOptionalSupport* support) { | |
| 172 memcpy(support, &_optional_support, sizeof(jmmOptionalSupport)); | |
| 173 } | |
| 174 | |
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175 Klass* Management::load_and_initialize_klass(Symbol* sh, TRAPS) { |
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176 Klass* k = SystemDictionary::resolve_or_fail(sh, true, CHECK_NULL); |
| 0 | 177 instanceKlassHandle ik (THREAD, k); |
| 178 if (ik->should_be_initialized()) { | |
| 179 ik->initialize(CHECK_NULL); | |
| 180 } | |
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181 // If these classes change to not be owned by the boot loader, they need |
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182 // to be walked to keep their class loader alive in oops_do. |
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183 assert(ik->class_loader() == NULL, "need to follow in oops_do"); |
| 0 | 184 return ik(); |
| 185 } | |
| 186 | |
| 187 void Management::record_vm_startup_time(jlong begin, jlong duration) { | |
| 188 // if the performance counter is not initialized, | |
| 189 // then vm initialization failed; simply return. | |
| 190 if (_begin_vm_creation_time == NULL) return; | |
| 191 | |
| 192 _begin_vm_creation_time->set_value(begin); | |
| 193 _end_vm_creation_time->set_value(begin + duration); | |
| 194 PerfMemory::set_accessible(true); | |
| 195 } | |
| 196 | |
| 197 jlong Management::timestamp() { | |
| 198 TimeStamp t; | |
| 199 t.update(); | |
| 200 return t.ticks() - _stamp.ticks(); | |
| 201 } | |
| 202 | |
| 203 void Management::oops_do(OopClosure* f) { | |
| 204 MemoryService::oops_do(f); | |
| 205 ThreadService::oops_do(f); | |
| 206 } | |
| 207 | |
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208 Klass* Management::java_lang_management_ThreadInfo_klass(TRAPS) { |
| 0 | 209 if (_threadInfo_klass == NULL) { |
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210 _threadInfo_klass = load_and_initialize_klass(vmSymbols::java_lang_management_ThreadInfo(), CHECK_NULL); |
| 0 | 211 } |
| 212 return _threadInfo_klass; | |
| 213 } | |
| 214 | |
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215 Klass* Management::java_lang_management_MemoryUsage_klass(TRAPS) { |
| 0 | 216 if (_memoryUsage_klass == NULL) { |
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217 _memoryUsage_klass = load_and_initialize_klass(vmSymbols::java_lang_management_MemoryUsage(), CHECK_NULL); |
| 0 | 218 } |
| 219 return _memoryUsage_klass; | |
| 220 } | |
| 221 | |
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222 Klass* Management::java_lang_management_MemoryPoolMXBean_klass(TRAPS) { |
| 0 | 223 if (_memoryPoolMXBean_klass == NULL) { |
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224 _memoryPoolMXBean_klass = load_and_initialize_klass(vmSymbols::java_lang_management_MemoryPoolMXBean(), CHECK_NULL); |
| 0 | 225 } |
| 226 return _memoryPoolMXBean_klass; | |
| 227 } | |
| 228 | |
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229 Klass* Management::java_lang_management_MemoryManagerMXBean_klass(TRAPS) { |
| 0 | 230 if (_memoryManagerMXBean_klass == NULL) { |
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231 _memoryManagerMXBean_klass = load_and_initialize_klass(vmSymbols::java_lang_management_MemoryManagerMXBean(), CHECK_NULL); |
| 0 | 232 } |
| 233 return _memoryManagerMXBean_klass; | |
| 234 } | |
| 235 | |
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236 Klass* Management::java_lang_management_GarbageCollectorMXBean_klass(TRAPS) { |
| 0 | 237 if (_garbageCollectorMXBean_klass == NULL) { |
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238 _garbageCollectorMXBean_klass = load_and_initialize_klass(vmSymbols::java_lang_management_GarbageCollectorMXBean(), CHECK_NULL); |
| 0 | 239 } |
| 240 return _garbageCollectorMXBean_klass; | |
| 241 } | |
| 242 | |
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243 Klass* Management::sun_management_Sensor_klass(TRAPS) { |
| 0 | 244 if (_sensor_klass == NULL) { |
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245 _sensor_klass = load_and_initialize_klass(vmSymbols::sun_management_Sensor(), CHECK_NULL); |
| 0 | 246 } |
| 247 return _sensor_klass; | |
| 248 } | |
| 249 | |
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250 Klass* Management::sun_management_ManagementFactory_klass(TRAPS) { |
| 0 | 251 if (_managementFactory_klass == NULL) { |
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252 _managementFactory_klass = load_and_initialize_klass(vmSymbols::sun_management_ManagementFactory(), CHECK_NULL); |
| 0 | 253 } |
| 254 return _managementFactory_klass; | |
| 255 } | |
| 256 | |
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257 Klass* Management::sun_management_GarbageCollectorImpl_klass(TRAPS) { |
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258 if (_garbageCollectorImpl_klass == NULL) { |
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259 _garbageCollectorImpl_klass = load_and_initialize_klass(vmSymbols::sun_management_GarbageCollectorImpl(), CHECK_NULL); |
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260 } |
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261 return _garbageCollectorImpl_klass; |
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262 } |
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263 |
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264 Klass* Management::com_sun_management_GcInfo_klass(TRAPS) { |
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265 if (_gcInfo_klass == NULL) { |
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266 _gcInfo_klass = load_and_initialize_klass(vmSymbols::com_sun_management_GcInfo(), CHECK_NULL); |
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267 } |
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268 return _gcInfo_klass; |
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269 } |
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270 |
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271 Klass* Management::sun_management_DiagnosticCommandImpl_klass(TRAPS) { |
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272 if (_diagnosticCommandImpl_klass == NULL) { |
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273 _diagnosticCommandImpl_klass = load_and_initialize_klass(vmSymbols::sun_management_DiagnosticCommandImpl(), CHECK_NULL); |
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274 } |
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275 return _diagnosticCommandImpl_klass; |
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276 } |
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277 |
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278 Klass* Management::sun_management_ManagementFactoryHelper_klass(TRAPS) { |
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279 if (_managementFactoryHelper_klass == NULL) { |
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280 _managementFactoryHelper_klass = load_and_initialize_klass(vmSymbols::sun_management_ManagementFactoryHelper(), CHECK_NULL); |
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281 } |
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282 return _managementFactoryHelper_klass; |
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283 } |
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284 |
| 0 | 285 static void initialize_ThreadInfo_constructor_arguments(JavaCallArguments* args, ThreadSnapshot* snapshot, TRAPS) { |
| 286 Handle snapshot_thread(THREAD, snapshot->threadObj()); | |
| 287 | |
| 288 jlong contended_time; | |
| 289 jlong waited_time; | |
| 290 if (ThreadService::is_thread_monitoring_contention()) { | |
| 291 contended_time = Management::ticks_to_ms(snapshot->contended_enter_ticks()); | |
| 292 waited_time = Management::ticks_to_ms(snapshot->monitor_wait_ticks() + snapshot->sleep_ticks()); | |
| 293 } else { | |
| 294 // set them to -1 if thread contention monitoring is disabled. | |
| 295 contended_time = max_julong; | |
| 296 waited_time = max_julong; | |
| 297 } | |
| 298 | |
| 299 int thread_status = snapshot->thread_status(); | |
| 300 assert((thread_status & JMM_THREAD_STATE_FLAG_MASK) == 0, "Flags already set in thread_status in Thread object"); | |
| 301 if (snapshot->is_ext_suspended()) { | |
| 302 thread_status |= JMM_THREAD_STATE_FLAG_SUSPENDED; | |
| 303 } | |
| 304 if (snapshot->is_in_native()) { | |
| 305 thread_status |= JMM_THREAD_STATE_FLAG_NATIVE; | |
| 306 } | |
| 307 | |
| 308 ThreadStackTrace* st = snapshot->get_stack_trace(); | |
| 309 Handle stacktrace_h; | |
| 310 if (st != NULL) { | |
| 311 stacktrace_h = st->allocate_fill_stack_trace_element_array(CHECK); | |
| 312 } else { | |
| 313 stacktrace_h = Handle(); | |
| 314 } | |
| 315 | |
| 316 args->push_oop(snapshot_thread); | |
| 317 args->push_int(thread_status); | |
| 318 args->push_oop(Handle(THREAD, snapshot->blocker_object())); | |
| 319 args->push_oop(Handle(THREAD, snapshot->blocker_object_owner())); | |
| 320 args->push_long(snapshot->contended_enter_count()); | |
| 321 args->push_long(contended_time); | |
| 322 args->push_long(snapshot->monitor_wait_count() + snapshot->sleep_count()); | |
| 323 args->push_long(waited_time); | |
| 324 args->push_oop(stacktrace_h); | |
| 325 } | |
| 326 | |
| 327 // Helper function to construct a ThreadInfo object | |
| 328 instanceOop Management::create_thread_info_instance(ThreadSnapshot* snapshot, TRAPS) { | |
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329 Klass* k = Management::java_lang_management_ThreadInfo_klass(CHECK_NULL); |
| 0 | 330 instanceKlassHandle ik (THREAD, k); |
| 331 | |
| 332 JavaValue result(T_VOID); | |
| 333 JavaCallArguments args(14); | |
| 334 | |
| 335 // First allocate a ThreadObj object and | |
| 336 // push the receiver as the first argument | |
| 337 Handle element = ik->allocate_instance_handle(CHECK_NULL); | |
| 338 args.push_oop(element); | |
| 339 | |
| 340 // initialize the arguments for the ThreadInfo constructor | |
| 341 initialize_ThreadInfo_constructor_arguments(&args, snapshot, CHECK_NULL); | |
| 342 | |
| 343 // Call ThreadInfo constructor with no locked monitors and synchronizers | |
| 344 JavaCalls::call_special(&result, | |
| 345 ik, | |
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346 vmSymbols::object_initializer_name(), |
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347 vmSymbols::java_lang_management_ThreadInfo_constructor_signature(), |
| 0 | 348 &args, |
| 349 CHECK_NULL); | |
| 350 | |
| 351 return (instanceOop) element(); | |
| 352 } | |
| 353 | |
| 354 instanceOop Management::create_thread_info_instance(ThreadSnapshot* snapshot, | |
| 355 objArrayHandle monitors_array, | |
| 356 typeArrayHandle depths_array, | |
| 357 objArrayHandle synchronizers_array, | |
| 358 TRAPS) { | |
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359 Klass* k = Management::java_lang_management_ThreadInfo_klass(CHECK_NULL); |
| 0 | 360 instanceKlassHandle ik (THREAD, k); |
| 361 | |
| 362 JavaValue result(T_VOID); | |
| 363 JavaCallArguments args(17); | |
| 364 | |
| 365 // First allocate a ThreadObj object and | |
| 366 // push the receiver as the first argument | |
| 367 Handle element = ik->allocate_instance_handle(CHECK_NULL); | |
| 368 args.push_oop(element); | |
| 369 | |
| 370 // initialize the arguments for the ThreadInfo constructor | |
| 371 initialize_ThreadInfo_constructor_arguments(&args, snapshot, CHECK_NULL); | |
| 372 | |
| 373 // push the locked monitors and synchronizers in the arguments | |
| 374 args.push_oop(monitors_array); | |
| 375 args.push_oop(depths_array); | |
| 376 args.push_oop(synchronizers_array); | |
| 377 | |
| 378 // Call ThreadInfo constructor with locked monitors and synchronizers | |
| 379 JavaCalls::call_special(&result, | |
| 380 ik, | |
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381 vmSymbols::object_initializer_name(), |
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382 vmSymbols::java_lang_management_ThreadInfo_with_locks_constructor_signature(), |
| 0 | 383 &args, |
| 384 CHECK_NULL); | |
| 385 | |
| 386 return (instanceOop) element(); | |
| 387 } | |
| 388 | |
| 389 // Helper functions | |
| 390 static JavaThread* find_java_thread_from_id(jlong thread_id) { | |
| 391 assert(Threads_lock->owned_by_self(), "Must hold Threads_lock"); | |
| 392 | |
| 393 JavaThread* java_thread = NULL; | |
| 394 // Sequential search for now. Need to do better optimization later. | |
| 395 for (JavaThread* thread = Threads::first(); thread != NULL; thread = thread->next()) { | |
| 396 oop tobj = thread->threadObj(); | |
| 397 if (!thread->is_exiting() && | |
| 398 tobj != NULL && | |
| 399 thread_id == java_lang_Thread::thread_id(tobj)) { | |
| 400 java_thread = thread; | |
| 401 break; | |
| 402 } | |
| 403 } | |
| 404 return java_thread; | |
| 405 } | |
| 406 | |
| 407 static GCMemoryManager* get_gc_memory_manager_from_jobject(jobject mgr, TRAPS) { | |
| 408 if (mgr == NULL) { | |
| 409 THROW_(vmSymbols::java_lang_NullPointerException(), NULL); | |
| 410 } | |
| 411 oop mgr_obj = JNIHandles::resolve(mgr); | |
| 412 instanceHandle h(THREAD, (instanceOop) mgr_obj); | |
| 413 | |
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414 Klass* k = Management::java_lang_management_GarbageCollectorMXBean_klass(CHECK_NULL); |
| 0 | 415 if (!h->is_a(k)) { |
| 416 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 417 "the object is not an instance of java.lang.management.GarbageCollectorMXBean class", | |
| 418 NULL); | |
| 419 } | |
| 420 | |
| 421 MemoryManager* gc = MemoryService::get_memory_manager(h); | |
| 422 if (gc == NULL || !gc->is_gc_memory_manager()) { | |
| 423 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 424 "Invalid GC memory manager", | |
| 425 NULL); | |
| 426 } | |
| 427 return (GCMemoryManager*) gc; | |
| 428 } | |
| 429 | |
| 430 static MemoryPool* get_memory_pool_from_jobject(jobject obj, TRAPS) { | |
| 431 if (obj == NULL) { | |
| 432 THROW_(vmSymbols::java_lang_NullPointerException(), NULL); | |
| 433 } | |
| 434 | |
| 435 oop pool_obj = JNIHandles::resolve(obj); | |
| 436 assert(pool_obj->is_instance(), "Should be an instanceOop"); | |
| 437 instanceHandle ph(THREAD, (instanceOop) pool_obj); | |
| 438 | |
| 439 return MemoryService::get_memory_pool(ph); | |
| 440 } | |
| 441 | |
| 442 static void validate_thread_id_array(typeArrayHandle ids_ah, TRAPS) { | |
| 443 int num_threads = ids_ah->length(); | |
| 444 | |
| 445 // Validate input thread IDs | |
| 446 int i = 0; | |
| 447 for (i = 0; i < num_threads; i++) { | |
| 448 jlong tid = ids_ah->long_at(i); | |
| 449 if (tid <= 0) { | |
| 450 // throw exception if invalid thread id. | |
| 451 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 452 "Invalid thread ID entry"); | |
| 453 } | |
| 454 } | |
| 455 } | |
| 456 | |
| 457 static void validate_thread_info_array(objArrayHandle infoArray_h, TRAPS) { | |
| 458 // check if the element of infoArray is of type ThreadInfo class | |
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459 Klass* threadinfo_klass = Management::java_lang_management_ThreadInfo_klass(CHECK); |
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460 Klass* element_klass = ObjArrayKlass::cast(infoArray_h->klass())->element_klass(); |
| 0 | 461 if (element_klass != threadinfo_klass) { |
| 462 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 463 "infoArray element type is not ThreadInfo class"); | |
| 464 } | |
| 465 } | |
| 466 | |
| 467 | |
| 468 static MemoryManager* get_memory_manager_from_jobject(jobject obj, TRAPS) { | |
| 469 if (obj == NULL) { | |
| 470 THROW_(vmSymbols::java_lang_NullPointerException(), NULL); | |
| 471 } | |
| 472 | |
| 473 oop mgr_obj = JNIHandles::resolve(obj); | |
| 474 assert(mgr_obj->is_instance(), "Should be an instanceOop"); | |
| 475 instanceHandle mh(THREAD, (instanceOop) mgr_obj); | |
| 476 | |
| 477 return MemoryService::get_memory_manager(mh); | |
| 478 } | |
| 479 | |
| 480 // Returns a version string and sets major and minor version if | |
| 481 // the input parameters are non-null. | |
| 482 JVM_LEAF(jint, jmm_GetVersion(JNIEnv *env)) | |
| 483 return JMM_VERSION; | |
| 484 JVM_END | |
| 485 | |
| 486 // Gets the list of VM monitoring and management optional supports | |
| 487 // Returns 0 if succeeded; otherwise returns non-zero. | |
| 488 JVM_LEAF(jint, jmm_GetOptionalSupport(JNIEnv *env, jmmOptionalSupport* support)) | |
| 489 if (support == NULL) { | |
| 490 return -1; | |
| 491 } | |
| 492 Management::get_optional_support(support); | |
| 493 return 0; | |
| 494 JVM_END | |
| 495 | |
| 496 // Returns a java.lang.String object containing the input arguments to the VM. | |
| 497 JVM_ENTRY(jobject, jmm_GetInputArguments(JNIEnv *env)) | |
| 498 ResourceMark rm(THREAD); | |
| 499 | |
| 500 if (Arguments::num_jvm_args() == 0 && Arguments::num_jvm_flags() == 0) { | |
| 501 return NULL; | |
| 502 } | |
| 503 | |
| 504 char** vm_flags = Arguments::jvm_flags_array(); | |
| 505 char** vm_args = Arguments::jvm_args_array(); | |
| 506 int num_flags = Arguments::num_jvm_flags(); | |
| 507 int num_args = Arguments::num_jvm_args(); | |
| 508 | |
| 509 size_t length = 1; // null terminator | |
| 510 int i; | |
| 511 for (i = 0; i < num_flags; i++) { | |
| 512 length += strlen(vm_flags[i]); | |
| 513 } | |
| 514 for (i = 0; i < num_args; i++) { | |
| 515 length += strlen(vm_args[i]); | |
| 516 } | |
| 517 // add a space between each argument | |
| 518 length += num_flags + num_args - 1; | |
| 519 | |
| 520 // Return the list of input arguments passed to the VM | |
| 521 // and preserve the order that the VM processes. | |
| 522 char* args = NEW_RESOURCE_ARRAY(char, length); | |
| 523 args[0] = '\0'; | |
| 524 // concatenate all jvm_flags | |
| 525 if (num_flags > 0) { | |
| 526 strcat(args, vm_flags[0]); | |
| 527 for (i = 1; i < num_flags; i++) { | |
| 528 strcat(args, " "); | |
| 529 strcat(args, vm_flags[i]); | |
| 530 } | |
| 531 } | |
| 532 | |
| 533 if (num_args > 0 && num_flags > 0) { | |
| 534 // append a space if args already contains one or more jvm_flags | |
| 535 strcat(args, " "); | |
| 536 } | |
| 537 | |
| 538 // concatenate all jvm_args | |
| 539 if (num_args > 0) { | |
| 540 strcat(args, vm_args[0]); | |
| 541 for (i = 1; i < num_args; i++) { | |
| 542 strcat(args, " "); | |
| 543 strcat(args, vm_args[i]); | |
| 544 } | |
| 545 } | |
| 546 | |
| 547 Handle hargs = java_lang_String::create_from_platform_dependent_str(args, CHECK_NULL); | |
| 548 return JNIHandles::make_local(env, hargs()); | |
| 549 JVM_END | |
| 550 | |
| 551 // Returns an array of java.lang.String object containing the input arguments to the VM. | |
| 552 JVM_ENTRY(jobjectArray, jmm_GetInputArgumentArray(JNIEnv *env)) | |
| 553 ResourceMark rm(THREAD); | |
| 554 | |
| 555 if (Arguments::num_jvm_args() == 0 && Arguments::num_jvm_flags() == 0) { | |
| 556 return NULL; | |
| 557 } | |
| 558 | |
| 559 char** vm_flags = Arguments::jvm_flags_array(); | |
| 560 char** vm_args = Arguments::jvm_args_array(); | |
| 561 int num_flags = Arguments::num_jvm_flags(); | |
| 562 int num_args = Arguments::num_jvm_args(); | |
| 563 | |
| 1142 | 564 instanceKlassHandle ik (THREAD, SystemDictionary::String_klass()); |
| 0 | 565 objArrayOop r = oopFactory::new_objArray(ik(), num_args + num_flags, CHECK_NULL); |
| 566 objArrayHandle result_h(THREAD, r); | |
| 567 | |
| 568 int index = 0; | |
| 569 for (int j = 0; j < num_flags; j++, index++) { | |
| 570 Handle h = java_lang_String::create_from_platform_dependent_str(vm_flags[j], CHECK_NULL); | |
| 571 result_h->obj_at_put(index, h()); | |
| 572 } | |
| 573 for (int i = 0; i < num_args; i++, index++) { | |
| 574 Handle h = java_lang_String::create_from_platform_dependent_str(vm_args[i], CHECK_NULL); | |
| 575 result_h->obj_at_put(index, h()); | |
| 576 } | |
| 577 return (jobjectArray) JNIHandles::make_local(env, result_h()); | |
| 578 JVM_END | |
| 579 | |
| 580 // Returns an array of java/lang/management/MemoryPoolMXBean object | |
| 581 // one for each memory pool if obj == null; otherwise returns | |
| 582 // an array of memory pools for a given memory manager if | |
| 583 // it is a valid memory manager. | |
| 584 JVM_ENTRY(jobjectArray, jmm_GetMemoryPools(JNIEnv* env, jobject obj)) | |
| 585 ResourceMark rm(THREAD); | |
| 586 | |
| 587 int num_memory_pools; | |
| 588 MemoryManager* mgr = NULL; | |
| 589 if (obj == NULL) { | |
| 590 num_memory_pools = MemoryService::num_memory_pools(); | |
| 591 } else { | |
| 592 mgr = get_memory_manager_from_jobject(obj, CHECK_NULL); | |
| 593 if (mgr == NULL) { | |
| 594 return NULL; | |
| 595 } | |
| 596 num_memory_pools = mgr->num_memory_pools(); | |
| 597 } | |
| 598 | |
| 599 // Allocate the resulting MemoryPoolMXBean[] object | |
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600 Klass* k = Management::java_lang_management_MemoryPoolMXBean_klass(CHECK_NULL); |
| 0 | 601 instanceKlassHandle ik (THREAD, k); |
| 602 objArrayOop r = oopFactory::new_objArray(ik(), num_memory_pools, CHECK_NULL); | |
| 603 objArrayHandle poolArray(THREAD, r); | |
| 604 | |
| 605 if (mgr == NULL) { | |
| 606 // Get all memory pools | |
| 607 for (int i = 0; i < num_memory_pools; i++) { | |
| 608 MemoryPool* pool = MemoryService::get_memory_pool(i); | |
| 609 instanceOop p = pool->get_memory_pool_instance(CHECK_NULL); | |
| 610 instanceHandle ph(THREAD, p); | |
| 611 poolArray->obj_at_put(i, ph()); | |
| 612 } | |
| 613 } else { | |
| 614 // Get memory pools managed by a given memory manager | |
| 615 for (int i = 0; i < num_memory_pools; i++) { | |
| 616 MemoryPool* pool = mgr->get_memory_pool(i); | |
| 617 instanceOop p = pool->get_memory_pool_instance(CHECK_NULL); | |
| 618 instanceHandle ph(THREAD, p); | |
| 619 poolArray->obj_at_put(i, ph()); | |
| 620 } | |
| 621 } | |
| 622 return (jobjectArray) JNIHandles::make_local(env, poolArray()); | |
| 623 JVM_END | |
| 624 | |
| 625 // Returns an array of java/lang/management/MemoryManagerMXBean object | |
| 626 // one for each memory manager if obj == null; otherwise returns | |
| 627 // an array of memory managers for a given memory pool if | |
| 628 // it is a valid memory pool. | |
| 629 JVM_ENTRY(jobjectArray, jmm_GetMemoryManagers(JNIEnv* env, jobject obj)) | |
| 630 ResourceMark rm(THREAD); | |
| 631 | |
| 632 int num_mgrs; | |
| 633 MemoryPool* pool = NULL; | |
| 634 if (obj == NULL) { | |
| 635 num_mgrs = MemoryService::num_memory_managers(); | |
| 636 } else { | |
| 637 pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 638 if (pool == NULL) { | |
| 639 return NULL; | |
| 640 } | |
| 641 num_mgrs = pool->num_memory_managers(); | |
| 642 } | |
| 643 | |
| 644 // Allocate the resulting MemoryManagerMXBean[] object | |
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645 Klass* k = Management::java_lang_management_MemoryManagerMXBean_klass(CHECK_NULL); |
| 0 | 646 instanceKlassHandle ik (THREAD, k); |
| 647 objArrayOop r = oopFactory::new_objArray(ik(), num_mgrs, CHECK_NULL); | |
| 648 objArrayHandle mgrArray(THREAD, r); | |
| 649 | |
| 650 if (pool == NULL) { | |
| 651 // Get all memory managers | |
| 652 for (int i = 0; i < num_mgrs; i++) { | |
| 653 MemoryManager* mgr = MemoryService::get_memory_manager(i); | |
| 654 instanceOop p = mgr->get_memory_manager_instance(CHECK_NULL); | |
| 655 instanceHandle ph(THREAD, p); | |
| 656 mgrArray->obj_at_put(i, ph()); | |
| 657 } | |
| 658 } else { | |
| 659 // Get memory managers for a given memory pool | |
| 660 for (int i = 0; i < num_mgrs; i++) { | |
| 661 MemoryManager* mgr = pool->get_memory_manager(i); | |
| 662 instanceOop p = mgr->get_memory_manager_instance(CHECK_NULL); | |
| 663 instanceHandle ph(THREAD, p); | |
| 664 mgrArray->obj_at_put(i, ph()); | |
| 665 } | |
| 666 } | |
| 667 return (jobjectArray) JNIHandles::make_local(env, mgrArray()); | |
| 668 JVM_END | |
| 669 | |
| 670 | |
| 671 // Returns a java/lang/management/MemoryUsage object containing the memory usage | |
| 672 // of a given memory pool. | |
| 673 JVM_ENTRY(jobject, jmm_GetMemoryPoolUsage(JNIEnv* env, jobject obj)) | |
| 674 ResourceMark rm(THREAD); | |
| 675 | |
| 676 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 677 if (pool != NULL) { | |
| 678 MemoryUsage usage = pool->get_memory_usage(); | |
| 679 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 680 return JNIHandles::make_local(env, h()); | |
| 681 } else { | |
| 682 return NULL; | |
| 683 } | |
| 684 JVM_END | |
| 685 | |
| 686 // Returns a java/lang/management/MemoryUsage object containing the memory usage | |
| 687 // of a given memory pool. | |
| 688 JVM_ENTRY(jobject, jmm_GetPeakMemoryPoolUsage(JNIEnv* env, jobject obj)) | |
| 689 ResourceMark rm(THREAD); | |
| 690 | |
| 691 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 692 if (pool != NULL) { | |
| 693 MemoryUsage usage = pool->get_peak_memory_usage(); | |
| 694 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 695 return JNIHandles::make_local(env, h()); | |
| 696 } else { | |
| 697 return NULL; | |
| 698 } | |
| 699 JVM_END | |
| 700 | |
| 701 // Returns a java/lang/management/MemoryUsage object containing the memory usage | |
| 702 // of a given memory pool after most recent GC. | |
| 703 JVM_ENTRY(jobject, jmm_GetPoolCollectionUsage(JNIEnv* env, jobject obj)) | |
| 704 ResourceMark rm(THREAD); | |
| 705 | |
| 706 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 707 if (pool != NULL && pool->is_collected_pool()) { | |
| 708 MemoryUsage usage = pool->get_last_collection_usage(); | |
| 709 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 710 return JNIHandles::make_local(env, h()); | |
| 711 } else { | |
| 712 return NULL; | |
| 713 } | |
| 714 JVM_END | |
| 715 | |
| 716 // Sets the memory pool sensor for a threshold type | |
| 717 JVM_ENTRY(void, jmm_SetPoolSensor(JNIEnv* env, jobject obj, jmmThresholdType type, jobject sensorObj)) | |
| 718 if (obj == NULL || sensorObj == NULL) { | |
| 719 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 720 } | |
| 721 | |
|
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722 Klass* sensor_klass = Management::sun_management_Sensor_klass(CHECK); |
| 0 | 723 oop s = JNIHandles::resolve(sensorObj); |
| 724 assert(s->is_instance(), "Sensor should be an instanceOop"); | |
| 725 instanceHandle sensor_h(THREAD, (instanceOop) s); | |
| 726 if (!sensor_h->is_a(sensor_klass)) { | |
| 727 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 728 "Sensor is not an instance of sun.management.Sensor class"); | |
| 729 } | |
| 730 | |
| 731 MemoryPool* mpool = get_memory_pool_from_jobject(obj, CHECK); | |
| 732 assert(mpool != NULL, "MemoryPool should exist"); | |
| 733 | |
| 734 switch (type) { | |
| 735 case JMM_USAGE_THRESHOLD_HIGH: | |
| 736 case JMM_USAGE_THRESHOLD_LOW: | |
| 737 // have only one sensor for threshold high and low | |
| 738 mpool->set_usage_sensor_obj(sensor_h); | |
| 739 break; | |
| 740 case JMM_COLLECTION_USAGE_THRESHOLD_HIGH: | |
| 741 case JMM_COLLECTION_USAGE_THRESHOLD_LOW: | |
| 742 // have only one sensor for threshold high and low | |
| 743 mpool->set_gc_usage_sensor_obj(sensor_h); | |
| 744 break; | |
| 745 default: | |
| 746 assert(false, "Unrecognized type"); | |
| 747 } | |
| 748 | |
| 749 JVM_END | |
| 750 | |
| 751 | |
| 752 // Sets the threshold of a given memory pool. | |
| 753 // Returns the previous threshold. | |
| 754 // | |
| 755 // Input parameters: | |
| 756 // pool - the MemoryPoolMXBean object | |
| 757 // type - threshold type | |
| 758 // threshold - the new threshold (must not be negative) | |
| 759 // | |
| 760 JVM_ENTRY(jlong, jmm_SetPoolThreshold(JNIEnv* env, jobject obj, jmmThresholdType type, jlong threshold)) | |
| 761 if (threshold < 0) { | |
| 762 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 763 "Invalid threshold value", | |
| 764 -1); | |
| 765 } | |
| 766 | |
|
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767 if ((size_t)threshold > max_uintx) { |
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|
768 stringStream st; |
|
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|
769 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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770 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), st.as_string(), -1); |
| 0 | 771 } |
| 772 | |
| 773 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_(0L)); | |
| 774 assert(pool != NULL, "MemoryPool should exist"); | |
| 775 | |
| 776 jlong prev = 0; | |
| 777 switch (type) { | |
| 778 case JMM_USAGE_THRESHOLD_HIGH: | |
| 779 if (!pool->usage_threshold()->is_high_threshold_supported()) { | |
| 780 return -1; | |
| 781 } | |
| 782 prev = pool->usage_threshold()->set_high_threshold((size_t) threshold); | |
| 783 break; | |
| 784 | |
| 785 case JMM_USAGE_THRESHOLD_LOW: | |
| 786 if (!pool->usage_threshold()->is_low_threshold_supported()) { | |
| 787 return -1; | |
| 788 } | |
| 789 prev = pool->usage_threshold()->set_low_threshold((size_t) threshold); | |
| 790 break; | |
| 791 | |
| 792 case JMM_COLLECTION_USAGE_THRESHOLD_HIGH: | |
| 793 if (!pool->gc_usage_threshold()->is_high_threshold_supported()) { | |
| 794 return -1; | |
| 795 } | |
| 796 // return and the new threshold is effective for the next GC | |
| 797 return pool->gc_usage_threshold()->set_high_threshold((size_t) threshold); | |
| 798 | |
| 799 case JMM_COLLECTION_USAGE_THRESHOLD_LOW: | |
| 800 if (!pool->gc_usage_threshold()->is_low_threshold_supported()) { | |
| 801 return -1; | |
| 802 } | |
| 803 // return and the new threshold is effective for the next GC | |
| 804 return pool->gc_usage_threshold()->set_low_threshold((size_t) threshold); | |
| 805 | |
| 806 default: | |
| 807 assert(false, "Unrecognized type"); | |
| 808 return -1; | |
| 809 } | |
| 810 | |
| 811 // When the threshold is changed, reevaluate if the low memory | |
| 812 // detection is enabled. | |
| 813 if (prev != threshold) { | |
| 814 LowMemoryDetector::recompute_enabled_for_collected_pools(); | |
| 815 LowMemoryDetector::detect_low_memory(pool); | |
| 816 } | |
| 817 return prev; | |
| 818 JVM_END | |
| 819 | |
|
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820 // Gets an array containing the amount of memory allocated on the Java |
|
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821 // heap for a set of threads (in bytes). Each element of the array is |
|
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822 // the amount of memory allocated for the thread ID specified in the |
|
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823 // corresponding entry in the given array of thread IDs; or -1 if the |
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824 // thread does not exist or has terminated. |
|
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|
825 JVM_ENTRY(void, jmm_GetThreadAllocatedMemory(JNIEnv *env, jlongArray ids, |
|
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826 jlongArray sizeArray)) |
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827 // Check if threads is null |
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828 if (ids == NULL || sizeArray == NULL) { |
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829 THROW(vmSymbols::java_lang_NullPointerException()); |
|
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|
830 } |
|
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|
831 |
|
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|
832 ResourceMark rm(THREAD); |
|
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833 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(ids)); |
|
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|
834 typeArrayHandle ids_ah(THREAD, ta); |
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835 |
|
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836 typeArrayOop sa = typeArrayOop(JNIHandles::resolve_non_null(sizeArray)); |
|
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|
837 typeArrayHandle sizeArray_h(THREAD, sa); |
|
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|
838 |
|
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|
839 // validate the thread id array |
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840 validate_thread_id_array(ids_ah, CHECK); |
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841 |
|
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842 // sizeArray must be of the same length as the given array of thread IDs |
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843 int num_threads = ids_ah->length(); |
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844 if (num_threads != sizeArray_h->length()) { |
|
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845 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), |
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846 "The length of the given long array does not match the length of " |
|
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847 "the given array of thread IDs"); |
|
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|
848 } |
|
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|
849 |
|
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|
850 MutexLockerEx ml(Threads_lock); |
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851 for (int i = 0; i < num_threads; i++) { |
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852 JavaThread* java_thread = find_java_thread_from_id(ids_ah->long_at(i)); |
|
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853 if (java_thread != NULL) { |
|
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|
854 sizeArray_h->long_at_put(i, java_thread->cooked_allocated_bytes()); |
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855 } |
|
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|
856 } |
|
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857 JVM_END |
|
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858 |
| 0 | 859 // Returns a java/lang/management/MemoryUsage object representing |
| 860 // the memory usage for the heap or non-heap memory. | |
| 861 JVM_ENTRY(jobject, jmm_GetMemoryUsage(JNIEnv* env, jboolean heap)) | |
| 862 ResourceMark rm(THREAD); | |
| 863 | |
| 864 // Calculate the memory usage | |
| 865 size_t total_init = 0; | |
| 866 size_t total_used = 0; | |
| 867 size_t total_committed = 0; | |
| 868 size_t total_max = 0; | |
| 869 bool has_undefined_init_size = false; | |
| 870 bool has_undefined_max_size = false; | |
| 871 | |
| 872 for (int i = 0; i < MemoryService::num_memory_pools(); i++) { | |
| 873 MemoryPool* pool = MemoryService::get_memory_pool(i); | |
| 874 if ((heap && pool->is_heap()) || (!heap && pool->is_non_heap())) { | |
| 875 MemoryUsage u = pool->get_memory_usage(); | |
| 876 total_used += u.used(); | |
| 877 total_committed += u.committed(); | |
| 878 | |
| 879 if (u.init_size() == (size_t)-1) { | |
| 880 has_undefined_init_size = true; | |
| 881 } | |
| 882 if (!has_undefined_init_size) { | |
| 883 total_init += u.init_size(); | |
| 884 } | |
| 885 | |
| 886 if (u.max_size() == (size_t)-1) { | |
| 887 has_undefined_max_size = true; | |
| 888 } | |
| 889 if (!has_undefined_max_size) { | |
| 890 total_max += u.max_size(); | |
| 891 } | |
| 892 } | |
| 893 } | |
| 894 | |
|
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895 // if any one of the memory pool has undefined init_size or max_size, |
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896 // set it to -1 |
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897 if (has_undefined_init_size) { |
|
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898 total_init = (size_t)-1; |
|
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|
899 } |
|
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900 if (has_undefined_max_size) { |
|
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901 total_max = (size_t)-1; |
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|
902 } |
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903 |
| 1064 | 904 MemoryUsage usage((heap ? InitialHeapSize : total_init), |
| 0 | 905 total_used, |
| 906 total_committed, | |
| 907 (heap ? Universe::heap()->max_capacity() : total_max)); | |
| 908 | |
| 909 Handle obj = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 910 return JNIHandles::make_local(env, obj()); | |
| 911 JVM_END | |
| 912 | |
| 913 // Returns the boolean value of a given attribute. | |
| 914 JVM_LEAF(jboolean, jmm_GetBoolAttribute(JNIEnv *env, jmmBoolAttribute att)) | |
| 915 switch (att) { | |
| 916 case JMM_VERBOSE_GC: | |
| 917 return MemoryService::get_verbose(); | |
| 918 case JMM_VERBOSE_CLASS: | |
| 919 return ClassLoadingService::get_verbose(); | |
| 920 case JMM_THREAD_CONTENTION_MONITORING: | |
| 921 return ThreadService::is_thread_monitoring_contention(); | |
| 922 case JMM_THREAD_CPU_TIME: | |
| 923 return ThreadService::is_thread_cpu_time_enabled(); | |
|
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924 case JMM_THREAD_ALLOCATED_MEMORY: |
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925 return ThreadService::is_thread_allocated_memory_enabled(); |
| 0 | 926 default: |
| 927 assert(0, "Unrecognized attribute"); | |
| 928 return false; | |
| 929 } | |
| 930 JVM_END | |
| 931 | |
| 932 // Sets the given boolean attribute and returns the previous value. | |
| 933 JVM_ENTRY(jboolean, jmm_SetBoolAttribute(JNIEnv *env, jmmBoolAttribute att, jboolean flag)) | |
| 934 switch (att) { | |
| 935 case JMM_VERBOSE_GC: | |
| 936 return MemoryService::set_verbose(flag != 0); | |
| 937 case JMM_VERBOSE_CLASS: | |
| 938 return ClassLoadingService::set_verbose(flag != 0); | |
| 939 case JMM_THREAD_CONTENTION_MONITORING: | |
| 940 return ThreadService::set_thread_monitoring_contention(flag != 0); | |
| 941 case JMM_THREAD_CPU_TIME: | |
| 942 return ThreadService::set_thread_cpu_time_enabled(flag != 0); | |
|
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943 case JMM_THREAD_ALLOCATED_MEMORY: |
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944 return ThreadService::set_thread_allocated_memory_enabled(flag != 0); |
| 0 | 945 default: |
| 946 assert(0, "Unrecognized attribute"); | |
| 947 return false; | |
| 948 } | |
| 949 JVM_END | |
| 950 | |
| 951 | |
| 952 static jlong get_gc_attribute(GCMemoryManager* mgr, jmmLongAttribute att) { | |
| 953 switch (att) { | |
| 954 case JMM_GC_TIME_MS: | |
| 955 return mgr->gc_time_ms(); | |
| 956 | |
| 957 case JMM_GC_COUNT: | |
| 958 return mgr->gc_count(); | |
| 959 | |
| 960 case JMM_GC_EXT_ATTRIBUTE_INFO_SIZE: | |
| 961 // current implementation only has 1 ext attribute | |
| 962 return 1; | |
| 963 | |
| 964 default: | |
| 965 assert(0, "Unrecognized GC attribute"); | |
| 966 return -1; | |
| 967 } | |
| 968 } | |
| 969 | |
| 970 class VmThreadCountClosure: public ThreadClosure { | |
| 971 private: | |
| 972 int _count; | |
| 973 public: | |
| 974 VmThreadCountClosure() : _count(0) {}; | |
| 975 void do_thread(Thread* thread); | |
| 976 int count() { return _count; } | |
| 977 }; | |
| 978 | |
| 979 void VmThreadCountClosure::do_thread(Thread* thread) { | |
| 980 // exclude externally visible JavaThreads | |
| 981 if (thread->is_Java_thread() && !thread->is_hidden_from_external_view()) { | |
| 982 return; | |
| 983 } | |
| 984 | |
| 985 _count++; | |
| 986 } | |
| 987 | |
| 988 static jint get_vm_thread_count() { | |
| 989 VmThreadCountClosure vmtcc; | |
| 990 { | |
| 991 MutexLockerEx ml(Threads_lock); | |
| 992 Threads::threads_do(&vmtcc); | |
| 993 } | |
| 994 | |
| 995 return vmtcc.count(); | |
| 996 } | |
| 997 | |
| 998 static jint get_num_flags() { | |
| 999 // last flag entry is always NULL, so subtract 1 | |
| 1000 int nFlags = (int) Flag::numFlags - 1; | |
| 1001 int count = 0; | |
| 1002 for (int i = 0; i < nFlags; i++) { | |
| 1003 Flag* flag = &Flag::flags[i]; | |
| 350 | 1004 // Exclude the locked (diagnostic, experimental) flags |
| 0 | 1005 if (flag->is_unlocked() || flag->is_unlocker()) { |
| 1006 count++; | |
| 1007 } | |
| 1008 } | |
| 1009 return count; | |
| 1010 } | |
| 1011 | |
| 1012 static jlong get_long_attribute(jmmLongAttribute att) { | |
| 1013 switch (att) { | |
| 1014 case JMM_CLASS_LOADED_COUNT: | |
| 1015 return ClassLoadingService::loaded_class_count(); | |
| 1016 | |
| 1017 case JMM_CLASS_UNLOADED_COUNT: | |
| 1018 return ClassLoadingService::unloaded_class_count(); | |
| 1019 | |
| 1020 case JMM_THREAD_TOTAL_COUNT: | |
| 1021 return ThreadService::get_total_thread_count(); | |
| 1022 | |
| 1023 case JMM_THREAD_LIVE_COUNT: | |
| 1024 return ThreadService::get_live_thread_count(); | |
| 1025 | |
| 1026 case JMM_THREAD_PEAK_COUNT: | |
| 1027 return ThreadService::get_peak_thread_count(); | |
| 1028 | |
| 1029 case JMM_THREAD_DAEMON_COUNT: | |
| 1030 return ThreadService::get_daemon_thread_count(); | |
| 1031 | |
| 1032 case JMM_JVM_INIT_DONE_TIME_MS: | |
| 1033 return Management::vm_init_done_time(); | |
| 1034 | |
| 1035 case JMM_COMPILE_TOTAL_TIME_MS: | |
| 1036 return Management::ticks_to_ms(CompileBroker::total_compilation_ticks()); | |
| 1037 | |
| 1038 case JMM_OS_PROCESS_ID: | |
| 1039 return os::current_process_id(); | |
| 1040 | |
| 1041 // Hotspot-specific counters | |
| 1042 case JMM_CLASS_LOADED_BYTES: | |
| 1043 return ClassLoadingService::loaded_class_bytes(); | |
| 1044 | |
| 1045 case JMM_CLASS_UNLOADED_BYTES: | |
| 1046 return ClassLoadingService::unloaded_class_bytes(); | |
| 1047 | |
| 1048 case JMM_SHARED_CLASS_LOADED_COUNT: | |
| 1049 return ClassLoadingService::loaded_shared_class_count(); | |
| 1050 | |
| 1051 case JMM_SHARED_CLASS_UNLOADED_COUNT: | |
| 1052 return ClassLoadingService::unloaded_shared_class_count(); | |
| 1053 | |
| 1054 | |
| 1055 case JMM_SHARED_CLASS_LOADED_BYTES: | |
| 1056 return ClassLoadingService::loaded_shared_class_bytes(); | |
| 1057 | |
| 1058 case JMM_SHARED_CLASS_UNLOADED_BYTES: | |
| 1059 return ClassLoadingService::unloaded_shared_class_bytes(); | |
| 1060 | |
| 1061 case JMM_TOTAL_CLASSLOAD_TIME_MS: | |
| 1062 return ClassLoader::classloader_time_ms(); | |
| 1063 | |
| 1064 case JMM_VM_GLOBAL_COUNT: | |
| 1065 return get_num_flags(); | |
| 1066 | |
| 1067 case JMM_SAFEPOINT_COUNT: | |
| 1068 return RuntimeService::safepoint_count(); | |
| 1069 | |
| 1070 case JMM_TOTAL_SAFEPOINTSYNC_TIME_MS: | |
| 1071 return RuntimeService::safepoint_sync_time_ms(); | |
| 1072 | |
| 1073 case JMM_TOTAL_STOPPED_TIME_MS: | |
| 1074 return RuntimeService::safepoint_time_ms(); | |
| 1075 | |
| 1076 case JMM_TOTAL_APP_TIME_MS: | |
| 1077 return RuntimeService::application_time_ms(); | |
| 1078 | |
| 1079 case JMM_VM_THREAD_COUNT: | |
| 1080 return get_vm_thread_count(); | |
| 1081 | |
| 1082 case JMM_CLASS_INIT_TOTAL_COUNT: | |
| 1083 return ClassLoader::class_init_count(); | |
| 1084 | |
| 1085 case JMM_CLASS_INIT_TOTAL_TIME_MS: | |
| 1086 return ClassLoader::class_init_time_ms(); | |
| 1087 | |
| 1088 case JMM_CLASS_VERIFY_TOTAL_TIME_MS: | |
| 1089 return ClassLoader::class_verify_time_ms(); | |
| 1090 | |
| 1091 case JMM_METHOD_DATA_SIZE_BYTES: | |
| 1092 return ClassLoadingService::class_method_data_size(); | |
| 1093 | |
| 1094 case JMM_OS_MEM_TOTAL_PHYSICAL_BYTES: | |
| 1095 return os::physical_memory(); | |
| 1096 | |
| 1097 default: | |
| 1098 return -1; | |
| 1099 } | |
| 1100 } | |
| 1101 | |
| 1102 | |
| 1103 // Returns the long value of a given attribute. | |
| 1104 JVM_ENTRY(jlong, jmm_GetLongAttribute(JNIEnv *env, jobject obj, jmmLongAttribute att)) | |
| 1105 if (obj == NULL) { | |
| 1106 return get_long_attribute(att); | |
| 1107 } else { | |
| 1108 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK_(0L)); | |
| 1109 if (mgr != NULL) { | |
| 1110 return get_gc_attribute(mgr, att); | |
| 1111 } | |
| 1112 } | |
| 1113 return -1; | |
| 1114 JVM_END | |
| 1115 | |
| 1116 // Gets the value of all attributes specified in the given array | |
| 1117 // and sets the value in the result array. | |
| 1118 // Returns the number of attributes found. | |
| 1119 JVM_ENTRY(jint, jmm_GetLongAttributes(JNIEnv *env, | |
| 1120 jobject obj, | |
| 1121 jmmLongAttribute* atts, | |
| 1122 jint count, | |
| 1123 jlong* result)) | |
| 1124 | |
| 1125 int num_atts = 0; | |
| 1126 if (obj == NULL) { | |
| 1127 for (int i = 0; i < count; i++) { | |
| 1128 result[i] = get_long_attribute(atts[i]); | |
| 1129 if (result[i] != -1) { | |
| 1130 num_atts++; | |
| 1131 } | |
| 1132 } | |
| 1133 } else { | |
| 1134 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK_0); | |
| 1135 for (int i = 0; i < count; i++) { | |
| 1136 result[i] = get_gc_attribute(mgr, atts[i]); | |
| 1137 if (result[i] != -1) { | |
| 1138 num_atts++; | |
| 1139 } | |
| 1140 } | |
| 1141 } | |
| 1142 return num_atts; | |
| 1143 JVM_END | |
| 1144 | |
| 1145 // Helper function to do thread dump for a specific list of threads | |
| 1146 static void do_thread_dump(ThreadDumpResult* dump_result, | |
| 1147 typeArrayHandle ids_ah, // array of thread ID (long[]) | |
| 1148 int num_threads, | |
| 1149 int max_depth, | |
| 1150 bool with_locked_monitors, | |
| 1151 bool with_locked_synchronizers, | |
| 1152 TRAPS) { | |
| 1153 | |
| 1154 // First get an array of threadObj handles. | |
| 1155 // A JavaThread may terminate before we get the stack trace. | |
| 1156 GrowableArray<instanceHandle>* thread_handle_array = new GrowableArray<instanceHandle>(num_threads); | |
| 1157 { | |
| 1158 MutexLockerEx ml(Threads_lock); | |
| 1159 for (int i = 0; i < num_threads; i++) { | |
| 1160 jlong tid = ids_ah->long_at(i); | |
| 1161 JavaThread* jt = find_java_thread_from_id(tid); | |
| 1162 oop thread_obj = (jt != NULL ? jt->threadObj() : (oop)NULL); | |
| 1163 instanceHandle threadObj_h(THREAD, (instanceOop) thread_obj); | |
| 1164 thread_handle_array->append(threadObj_h); | |
| 1165 } | |
| 1166 } | |
| 1167 | |
| 1168 // Obtain thread dumps and thread snapshot information | |
| 1169 VM_ThreadDump op(dump_result, | |
| 1170 thread_handle_array, | |
| 1171 num_threads, | |
| 1172 max_depth, /* stack depth */ | |
| 1173 with_locked_monitors, | |
| 1174 with_locked_synchronizers); | |
| 1175 VMThread::execute(&op); | |
| 1176 } | |
| 1177 | |
| 1178 // Gets an array of ThreadInfo objects. Each element is the ThreadInfo | |
| 1179 // for the thread ID specified in the corresponding entry in | |
| 1180 // the given array of thread IDs; or NULL if the thread does not exist | |
| 1181 // or has terminated. | |
| 1182 // | |
| 1183 // Input parameters: | |
| 1184 // ids - array of thread IDs | |
| 1185 // maxDepth - the maximum depth of stack traces to be dumped: | |
| 1186 // maxDepth == -1 requests to dump entire stack trace. | |
| 1187 // maxDepth == 0 requests no stack trace. | |
| 1188 // infoArray - array of ThreadInfo objects | |
| 1189 // | |
|
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1190 // QQQ - Why does this method return a value instead of void? |
| 0 | 1191 JVM_ENTRY(jint, jmm_GetThreadInfo(JNIEnv *env, jlongArray ids, jint maxDepth, jobjectArray infoArray)) |
| 1192 // Check if threads is null | |
| 1193 if (ids == NULL || infoArray == NULL) { | |
| 1194 THROW_(vmSymbols::java_lang_NullPointerException(), -1); | |
| 1195 } | |
| 1196 | |
| 1197 if (maxDepth < -1) { | |
| 1198 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1199 "Invalid maxDepth", -1); | |
| 1200 } | |
| 1201 | |
| 1202 ResourceMark rm(THREAD); | |
| 1203 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(ids)); | |
| 1204 typeArrayHandle ids_ah(THREAD, ta); | |
| 1205 | |
| 1206 oop infoArray_obj = JNIHandles::resolve_non_null(infoArray); | |
| 1207 objArrayOop oa = objArrayOop(infoArray_obj); | |
| 1208 objArrayHandle infoArray_h(THREAD, oa); | |
| 1209 | |
| 1210 // validate the thread id array | |
| 1211 validate_thread_id_array(ids_ah, CHECK_0); | |
| 1212 | |
| 1213 // validate the ThreadInfo[] parameters | |
| 1214 validate_thread_info_array(infoArray_h, CHECK_0); | |
| 1215 | |
| 1216 // infoArray must be of the same length as the given array of thread IDs | |
| 1217 int num_threads = ids_ah->length(); | |
| 1218 if (num_threads != infoArray_h->length()) { | |
| 1219 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1220 "The length of the given ThreadInfo array does not match the length of the given array of thread IDs", -1); | |
| 1221 } | |
| 1222 | |
| 1223 if (JDK_Version::is_gte_jdk16x_version()) { | |
| 1224 // make sure the AbstractOwnableSynchronizer klass is loaded before taking thread snapshots | |
| 1225 java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(CHECK_0); | |
| 1226 } | |
| 1227 | |
| 1228 // Must use ThreadDumpResult to store the ThreadSnapshot. | |
| 1229 // GC may occur after the thread snapshots are taken but before | |
| 1230 // this function returns. The threadObj and other oops kept | |
| 1231 // in the ThreadSnapshot are marked and adjusted during GC. | |
| 1232 ThreadDumpResult dump_result(num_threads); | |
| 1233 | |
| 1234 if (maxDepth == 0) { | |
| 1235 // no stack trace dumped - do not need to stop the world | |
| 1236 { | |
| 1237 MutexLockerEx ml(Threads_lock); | |
| 1238 for (int i = 0; i < num_threads; i++) { | |
| 1239 jlong tid = ids_ah->long_at(i); | |
| 1240 JavaThread* jt = find_java_thread_from_id(tid); | |
| 1241 ThreadSnapshot* ts; | |
| 1242 if (jt == NULL) { | |
| 1243 // if the thread does not exist or now it is terminated, | |
| 1244 // create dummy snapshot | |
| 1245 ts = new ThreadSnapshot(); | |
| 1246 } else { | |
| 1247 ts = new ThreadSnapshot(jt); | |
| 1248 } | |
| 1249 dump_result.add_thread_snapshot(ts); | |
| 1250 } | |
| 1251 } | |
| 1252 } else { | |
| 1253 // obtain thread dump with the specific list of threads with stack trace | |
| 1254 do_thread_dump(&dump_result, | |
| 1255 ids_ah, | |
| 1256 num_threads, | |
| 1257 maxDepth, | |
| 1258 false, /* no locked monitor */ | |
| 1259 false, /* no locked synchronizers */ | |
| 1260 CHECK_0); | |
| 1261 } | |
| 1262 | |
| 1263 int num_snapshots = dump_result.num_snapshots(); | |
| 1264 assert(num_snapshots == num_threads, "Must match the number of thread snapshots"); | |
| 1265 int index = 0; | |
| 1266 for (ThreadSnapshot* ts = dump_result.snapshots(); ts != NULL; index++, ts = ts->next()) { | |
| 1267 // For each thread, create an java/lang/management/ThreadInfo object | |
| 1268 // and fill with the thread information | |
| 1269 | |
| 1270 if (ts->threadObj() == NULL) { | |
| 1271 // if the thread does not exist or now it is terminated, set threadinfo to NULL | |
| 1272 infoArray_h->obj_at_put(index, NULL); | |
| 1273 continue; | |
| 1274 } | |
| 1275 | |
| 1276 // Create java.lang.management.ThreadInfo object | |
| 1277 instanceOop info_obj = Management::create_thread_info_instance(ts, CHECK_0); | |
| 1278 infoArray_h->obj_at_put(index, info_obj); | |
| 1279 } | |
| 1280 return 0; | |
| 1281 JVM_END | |
| 1282 | |
| 1283 // Dump thread info for the specified threads. | |
| 1284 // It returns an array of ThreadInfo objects. Each element is the ThreadInfo | |
| 1285 // for the thread ID specified in the corresponding entry in | |
| 1286 // the given array of thread IDs; or NULL if the thread does not exist | |
| 1287 // or has terminated. | |
| 1288 // | |
| 1289 // Input parameter: | |
| 1290 // ids - array of thread IDs; NULL indicates all live threads | |
| 1291 // locked_monitors - if true, dump locked object monitors | |
| 1292 // locked_synchronizers - if true, dump locked JSR-166 synchronizers | |
| 1293 // | |
| 1294 JVM_ENTRY(jobjectArray, jmm_DumpThreads(JNIEnv *env, jlongArray thread_ids, jboolean locked_monitors, jboolean locked_synchronizers)) | |
| 1295 ResourceMark rm(THREAD); | |
| 1296 | |
| 1297 if (JDK_Version::is_gte_jdk16x_version()) { | |
| 1298 // make sure the AbstractOwnableSynchronizer klass is loaded before taking thread snapshots | |
| 1299 java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(CHECK_NULL); | |
| 1300 } | |
| 1301 | |
| 1302 typeArrayOop ta = typeArrayOop(JNIHandles::resolve(thread_ids)); | |
| 1303 int num_threads = (ta != NULL ? ta->length() : 0); | |
| 1304 typeArrayHandle ids_ah(THREAD, ta); | |
| 1305 | |
| 1306 ThreadDumpResult dump_result(num_threads); // can safepoint | |
| 1307 | |
| 1308 if (ids_ah() != NULL) { | |
| 1309 | |
| 1310 // validate the thread id array | |
| 1311 validate_thread_id_array(ids_ah, CHECK_NULL); | |
| 1312 | |
| 1313 // obtain thread dump of a specific list of threads | |
| 1314 do_thread_dump(&dump_result, | |
| 1315 ids_ah, | |
| 1316 num_threads, | |
| 1317 -1, /* entire stack */ | |
| 1318 (locked_monitors ? true : false), /* with locked monitors */ | |
| 1319 (locked_synchronizers ? true : false), /* with locked synchronizers */ | |
| 1320 CHECK_NULL); | |
| 1321 } else { | |
| 1322 // obtain thread dump of all threads | |
| 1323 VM_ThreadDump op(&dump_result, | |
| 1324 -1, /* entire stack */ | |
| 1325 (locked_monitors ? true : false), /* with locked monitors */ | |
| 1326 (locked_synchronizers ? true : false) /* with locked synchronizers */); | |
| 1327 VMThread::execute(&op); | |
| 1328 } | |
| 1329 | |
| 1330 int num_snapshots = dump_result.num_snapshots(); | |
| 1331 | |
| 1332 // create the result ThreadInfo[] object | |
|
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1333 Klass* k = Management::java_lang_management_ThreadInfo_klass(CHECK_NULL); |
| 0 | 1334 instanceKlassHandle ik (THREAD, k); |
| 1335 objArrayOop r = oopFactory::new_objArray(ik(), num_snapshots, CHECK_NULL); | |
| 1336 objArrayHandle result_h(THREAD, r); | |
| 1337 | |
| 1338 int index = 0; | |
| 1339 for (ThreadSnapshot* ts = dump_result.snapshots(); ts != NULL; ts = ts->next(), index++) { | |
| 1340 if (ts->threadObj() == NULL) { | |
| 1341 // if the thread does not exist or now it is terminated, set threadinfo to NULL | |
| 1342 result_h->obj_at_put(index, NULL); | |
| 1343 continue; | |
| 1344 } | |
| 1345 | |
| 1346 ThreadStackTrace* stacktrace = ts->get_stack_trace(); | |
| 1347 assert(stacktrace != NULL, "Must have a stack trace dumped"); | |
| 1348 | |
| 1349 // Create Object[] filled with locked monitors | |
| 1350 // Create int[] filled with the stack depth where a monitor was locked | |
| 1351 int num_frames = stacktrace->get_stack_depth(); | |
| 1352 int num_locked_monitors = stacktrace->num_jni_locked_monitors(); | |
| 1353 | |
| 1354 // Count the total number of locked monitors | |
| 1355 for (int i = 0; i < num_frames; i++) { | |
| 1356 StackFrameInfo* frame = stacktrace->stack_frame_at(i); | |
| 1357 num_locked_monitors += frame->num_locked_monitors(); | |
| 1358 } | |
| 1359 | |
| 1360 objArrayHandle monitors_array; | |
| 1361 typeArrayHandle depths_array; | |
| 1362 objArrayHandle synchronizers_array; | |
| 1363 | |
| 1364 if (locked_monitors) { | |
| 1365 // Constructs Object[] and int[] to contain the object monitor and the stack depth | |
| 1366 // where the thread locked it | |
|
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1367 objArrayOop array = oopFactory::new_objArray(SystemDictionary::Object_klass(), num_locked_monitors, CHECK_NULL); |
| 0 | 1368 objArrayHandle mh(THREAD, array); |
| 1369 monitors_array = mh; | |
| 1370 | |
| 1371 typeArrayOop tarray = oopFactory::new_typeArray(T_INT, num_locked_monitors, CHECK_NULL); | |
| 1372 typeArrayHandle dh(THREAD, tarray); | |
| 1373 depths_array = dh; | |
| 1374 | |
| 1375 int count = 0; | |
| 1376 int j = 0; | |
| 1377 for (int depth = 0; depth < num_frames; depth++) { | |
| 1378 StackFrameInfo* frame = stacktrace->stack_frame_at(depth); | |
| 1379 int len = frame->num_locked_monitors(); | |
| 1380 GrowableArray<oop>* locked_monitors = frame->locked_monitors(); | |
| 1381 for (j = 0; j < len; j++) { | |
| 1382 oop monitor = locked_monitors->at(j); | |
| 1383 assert(monitor != NULL && monitor->is_instance(), "must be a Java object"); | |
| 1384 monitors_array->obj_at_put(count, monitor); | |
| 1385 depths_array->int_at_put(count, depth); | |
| 1386 count++; | |
| 1387 } | |
| 1388 } | |
| 1389 | |
| 1390 GrowableArray<oop>* jni_locked_monitors = stacktrace->jni_locked_monitors(); | |
| 1391 for (j = 0; j < jni_locked_monitors->length(); j++) { | |
| 1392 oop object = jni_locked_monitors->at(j); | |
| 1393 assert(object != NULL && object->is_instance(), "must be a Java object"); | |
| 1394 monitors_array->obj_at_put(count, object); | |
| 1395 // Monitor locked via JNI MonitorEnter call doesn't have stack depth info | |
| 1396 depths_array->int_at_put(count, -1); | |
| 1397 count++; | |
| 1398 } | |
| 1399 assert(count == num_locked_monitors, "number of locked monitors doesn't match"); | |
| 1400 } | |
| 1401 | |
| 1402 if (locked_synchronizers) { | |
| 1403 // Create Object[] filled with locked JSR-166 synchronizers | |
| 1404 assert(ts->threadObj() != NULL, "Must be a valid JavaThread"); | |
| 1405 ThreadConcurrentLocks* tcl = ts->get_concurrent_locks(); | |
| 1406 GrowableArray<instanceOop>* locks = (tcl != NULL ? tcl->owned_locks() : NULL); | |
| 1407 int num_locked_synchronizers = (locks != NULL ? locks->length() : 0); | |
| 1408 | |
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1409 objArrayOop array = oopFactory::new_objArray(SystemDictionary::Object_klass(), num_locked_synchronizers, CHECK_NULL); |
| 0 | 1410 objArrayHandle sh(THREAD, array); |
| 1411 synchronizers_array = sh; | |
| 1412 | |
| 1413 for (int k = 0; k < num_locked_synchronizers; k++) { | |
| 1414 synchronizers_array->obj_at_put(k, locks->at(k)); | |
| 1415 } | |
| 1416 } | |
| 1417 | |
| 1418 // Create java.lang.management.ThreadInfo object | |
| 1419 instanceOop info_obj = Management::create_thread_info_instance(ts, | |
| 1420 monitors_array, | |
| 1421 depths_array, | |
| 1422 synchronizers_array, | |
| 1423 CHECK_NULL); | |
| 1424 result_h->obj_at_put(index, info_obj); | |
| 1425 } | |
| 1426 | |
| 1427 return (jobjectArray) JNIHandles::make_local(env, result_h()); | |
| 1428 JVM_END | |
| 1429 | |
| 1430 // Returns an array of Class objects. | |
| 1431 JVM_ENTRY(jobjectArray, jmm_GetLoadedClasses(JNIEnv *env)) | |
| 1432 ResourceMark rm(THREAD); | |
| 1433 | |
| 1434 LoadedClassesEnumerator lce(THREAD); // Pass current Thread as parameter | |
| 1435 | |
| 1436 int num_classes = lce.num_loaded_classes(); | |
| 1142 | 1437 objArrayOop r = oopFactory::new_objArray(SystemDictionary::Class_klass(), num_classes, CHECK_0); |
| 0 | 1438 objArrayHandle classes_ah(THREAD, r); |
| 1439 | |
| 1440 for (int i = 0; i < num_classes; i++) { | |
| 1441 KlassHandle kh = lce.get_klass(i); | |
| 6983 | 1442 oop mirror = kh()->java_mirror(); |
| 0 | 1443 classes_ah->obj_at_put(i, mirror); |
| 1444 } | |
| 1445 | |
| 1446 return (jobjectArray) JNIHandles::make_local(env, classes_ah()); | |
| 1447 JVM_END | |
| 1448 | |
| 1449 // Reset statistic. Return true if the requested statistic is reset. | |
| 1450 // Otherwise, return false. | |
| 1451 // | |
| 1452 // Input parameters: | |
| 1453 // obj - specify which instance the statistic associated with to be reset | |
| 1454 // For PEAK_POOL_USAGE stat, obj is required to be a memory pool object. | |
| 1455 // For THREAD_CONTENTION_COUNT and TIME stat, obj is required to be a thread ID. | |
| 1456 // type - the type of statistic to be reset | |
| 1457 // | |
| 1458 JVM_ENTRY(jboolean, jmm_ResetStatistic(JNIEnv *env, jvalue obj, jmmStatisticType type)) | |
| 1459 ResourceMark rm(THREAD); | |
| 1460 | |
| 1461 switch (type) { | |
| 1462 case JMM_STAT_PEAK_THREAD_COUNT: | |
| 1463 ThreadService::reset_peak_thread_count(); | |
| 1464 return true; | |
| 1465 | |
| 1466 case JMM_STAT_THREAD_CONTENTION_COUNT: | |
| 1467 case JMM_STAT_THREAD_CONTENTION_TIME: { | |
| 1468 jlong tid = obj.j; | |
| 1469 if (tid < 0) { | |
| 1470 THROW_(vmSymbols::java_lang_IllegalArgumentException(), JNI_FALSE); | |
| 1471 } | |
| 1472 | |
| 1473 // Look for the JavaThread of this given tid | |
| 1474 MutexLockerEx ml(Threads_lock); | |
| 1475 if (tid == 0) { | |
| 1476 // reset contention statistics for all threads if tid == 0 | |
| 1477 for (JavaThread* java_thread = Threads::first(); java_thread != NULL; java_thread = java_thread->next()) { | |
| 1478 if (type == JMM_STAT_THREAD_CONTENTION_COUNT) { | |
| 1479 ThreadService::reset_contention_count_stat(java_thread); | |
| 1480 } else { | |
| 1481 ThreadService::reset_contention_time_stat(java_thread); | |
| 1482 } | |
| 1483 } | |
| 1484 } else { | |
| 1485 // reset contention statistics for a given thread | |
| 1486 JavaThread* java_thread = find_java_thread_from_id(tid); | |
| 1487 if (java_thread == NULL) { | |
| 1488 return false; | |
| 1489 } | |
| 1490 | |
| 1491 if (type == JMM_STAT_THREAD_CONTENTION_COUNT) { | |
| 1492 ThreadService::reset_contention_count_stat(java_thread); | |
| 1493 } else { | |
| 1494 ThreadService::reset_contention_time_stat(java_thread); | |
| 1495 } | |
| 1496 } | |
| 1497 return true; | |
| 1498 break; | |
| 1499 } | |
| 1500 case JMM_STAT_PEAK_POOL_USAGE: { | |
| 1501 jobject o = obj.l; | |
| 1502 if (o == NULL) { | |
| 1503 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_FALSE); | |
| 1504 } | |
| 1505 | |
| 1506 oop pool_obj = JNIHandles::resolve(o); | |
| 1507 assert(pool_obj->is_instance(), "Should be an instanceOop"); | |
| 1508 instanceHandle ph(THREAD, (instanceOop) pool_obj); | |
| 1509 | |
| 1510 MemoryPool* pool = MemoryService::get_memory_pool(ph); | |
| 1511 if (pool != NULL) { | |
| 1512 pool->reset_peak_memory_usage(); | |
| 1513 return true; | |
| 1514 } | |
| 1515 break; | |
| 1516 } | |
| 1517 case JMM_STAT_GC_STAT: { | |
| 1518 jobject o = obj.l; | |
| 1519 if (o == NULL) { | |
| 1520 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_FALSE); | |
| 1521 } | |
| 1522 | |
| 1523 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(o, CHECK_0); | |
| 1524 if (mgr != NULL) { | |
| 1525 mgr->reset_gc_stat(); | |
| 1526 return true; | |
| 1527 } | |
| 1528 break; | |
| 1529 } | |
| 1530 default: | |
| 1531 assert(0, "Unknown Statistic Type"); | |
| 1532 } | |
| 1533 return false; | |
| 1534 JVM_END | |
| 1535 | |
| 1536 // Returns the fast estimate of CPU time consumed by | |
| 1537 // a given thread (in nanoseconds). | |
| 1538 // If thread_id == 0, return CPU time for the current thread. | |
| 1539 JVM_ENTRY(jlong, jmm_GetThreadCpuTime(JNIEnv *env, jlong thread_id)) | |
| 1540 if (!os::is_thread_cpu_time_supported()) { | |
| 1541 return -1; | |
| 1542 } | |
| 1543 | |
| 1544 if (thread_id < 0) { | |
| 1545 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1546 "Invalid thread ID", -1); | |
| 1547 } | |
| 1548 | |
| 1549 JavaThread* java_thread = NULL; | |
| 1550 if (thread_id == 0) { | |
| 1551 // current thread | |
| 1552 return os::current_thread_cpu_time(); | |
| 1553 } else { | |
| 1554 MutexLockerEx ml(Threads_lock); | |
| 1555 java_thread = find_java_thread_from_id(thread_id); | |
| 1556 if (java_thread != NULL) { | |
| 1557 return os::thread_cpu_time((Thread*) java_thread); | |
| 1558 } | |
| 1559 } | |
| 1560 return -1; | |
| 1561 JVM_END | |
| 1562 | |
| 1563 // Returns the CPU time consumed by a given thread (in nanoseconds). | |
| 1564 // If thread_id == 0, CPU time for the current thread is returned. | |
| 1565 // If user_sys_cpu_time = true, user level and system CPU time of | |
| 1566 // a given thread is returned; otherwise, only user level CPU time | |
| 1567 // is returned. | |
| 1568 JVM_ENTRY(jlong, jmm_GetThreadCpuTimeWithKind(JNIEnv *env, jlong thread_id, jboolean user_sys_cpu_time)) | |
| 1569 if (!os::is_thread_cpu_time_supported()) { | |
| 1570 return -1; | |
| 1571 } | |
| 1572 | |
| 1573 if (thread_id < 0) { | |
| 1574 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1575 "Invalid thread ID", -1); | |
| 1576 } | |
| 1577 | |
| 1578 JavaThread* java_thread = NULL; | |
| 1579 if (thread_id == 0) { | |
| 1580 // current thread | |
| 1581 return os::current_thread_cpu_time(user_sys_cpu_time != 0); | |
| 1582 } else { | |
| 1583 MutexLockerEx ml(Threads_lock); | |
| 1584 java_thread = find_java_thread_from_id(thread_id); | |
| 1585 if (java_thread != NULL) { | |
| 1586 return os::thread_cpu_time((Thread*) java_thread, user_sys_cpu_time != 0); | |
| 1587 } | |
| 1588 } | |
| 1589 return -1; | |
| 1590 JVM_END | |
| 1591 | |
|
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1592 // Gets an array containing the CPU times consumed by a set of threads |
|
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1593 // (in nanoseconds). Each element of the array is the CPU time for the |
|
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1594 // thread ID specified in the corresponding entry in the given array |
|
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1595 // of thread IDs; or -1 if the thread does not exist or has terminated. |
|
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1596 // If user_sys_cpu_time = true, the sum of user level and system CPU time |
|
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1597 // for the given thread is returned; otherwise, only user level CPU time |
|
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|
1598 // is returned. |
|
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|
1599 JVM_ENTRY(void, jmm_GetThreadCpuTimesWithKind(JNIEnv *env, jlongArray ids, |
|
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1600 jlongArray timeArray, |
|
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1601 jboolean user_sys_cpu_time)) |
|
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1602 // Check if threads is null |
|
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1603 if (ids == NULL || timeArray == NULL) { |
|
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1604 THROW(vmSymbols::java_lang_NullPointerException()); |
|
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|
1605 } |
|
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|
1606 |
|
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|
1607 ResourceMark rm(THREAD); |
|
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|
1608 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(ids)); |
|
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1609 typeArrayHandle ids_ah(THREAD, ta); |
|
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|
1610 |
|
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|
1611 typeArrayOop tia = typeArrayOop(JNIHandles::resolve_non_null(timeArray)); |
|
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1612 typeArrayHandle timeArray_h(THREAD, tia); |
|
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|
1613 |
|
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|
1614 // validate the thread id array |
|
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|
1615 validate_thread_id_array(ids_ah, CHECK); |
|
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|
1616 |
|
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|
1617 // timeArray must be of the same length as the given array of thread IDs |
|
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|
1618 int num_threads = ids_ah->length(); |
|
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1619 if (num_threads != timeArray_h->length()) { |
|
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|
1620 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), |
|
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|
1621 "The length of the given long array does not match the length of " |
|
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|
1622 "the given array of thread IDs"); |
|
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diff
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|
1623 } |
|
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diff
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|
1624 |
|
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|
1625 MutexLockerEx ml(Threads_lock); |
|
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|
1626 for (int i = 0; i < num_threads; i++) { |
|
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|
1627 JavaThread* java_thread = find_java_thread_from_id(ids_ah->long_at(i)); |
|
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|
1628 if (java_thread != NULL) { |
|
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diff
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|
1629 timeArray_h->long_at_put(i, os::thread_cpu_time((Thread*)java_thread, |
|
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|
1630 user_sys_cpu_time != 0)); |
|
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diff
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|
1631 } |
|
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diff
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|
1632 } |
|
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diff
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|
1633 JVM_END |
|
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|
1634 |
| 0 | 1635 // Returns a String array of all VM global flag names |
| 1636 JVM_ENTRY(jobjectArray, jmm_GetVMGlobalNames(JNIEnv *env)) | |
| 1637 // last flag entry is always NULL, so subtract 1 | |
| 1638 int nFlags = (int) Flag::numFlags - 1; | |
| 1639 // allocate a temp array | |
| 1142 | 1640 objArrayOop r = oopFactory::new_objArray(SystemDictionary::String_klass(), |
| 0 | 1641 nFlags, CHECK_0); |
| 1642 objArrayHandle flags_ah(THREAD, r); | |
| 1643 int num_entries = 0; | |
| 1644 for (int i = 0; i < nFlags; i++) { | |
| 1645 Flag* flag = &Flag::flags[i]; | |
|
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|
1646 // Exclude notproduct and develop flags in product builds. |
|
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|
1647 if (flag->is_constant_in_binary()) { |
|
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
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diff
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|
1648 continue; |
|
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12103
diff
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|
1649 } |
| 350 | 1650 // Exclude the locked (experimental, diagnostic) flags |
| 0 | 1651 if (flag->is_unlocked() || flag->is_unlocker()) { |
|
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|
1652 Handle s = java_lang_String::create_from_str(flag->_name, CHECK_0); |
| 0 | 1653 flags_ah->obj_at_put(num_entries, s()); |
| 1654 num_entries++; | |
| 1655 } | |
| 1656 } | |
| 1657 | |
| 1658 if (num_entries < nFlags) { | |
| 1659 // Return array of right length | |
| 1142 | 1660 objArrayOop res = oopFactory::new_objArray(SystemDictionary::String_klass(), num_entries, CHECK_0); |
| 0 | 1661 for(int i = 0; i < num_entries; i++) { |
| 1662 res->obj_at_put(i, flags_ah->obj_at(i)); | |
| 1663 } | |
| 1664 return (jobjectArray)JNIHandles::make_local(env, res); | |
| 1665 } | |
| 1666 | |
| 1667 return (jobjectArray)JNIHandles::make_local(env, flags_ah()); | |
| 1668 JVM_END | |
| 1669 | |
|
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|
1670 // Utility function used by jmm_GetVMGlobals. Returns false if flag type |
|
ba7ea42fc66e
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|
1671 // can't be determined, true otherwise. If false is returned, then *global |
|
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|
1672 // will be incomplete and invalid. |
|
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|
1673 bool add_global_entry(JNIEnv* env, Handle name, jmmVMGlobal *global, Flag *flag, TRAPS) { |
| 0 | 1674 Handle flag_name; |
| 1675 if (name() == NULL) { | |
|
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|
1676 flag_name = java_lang_String::create_from_str(flag->_name, CHECK_false); |
| 0 | 1677 } else { |
| 1678 flag_name = name; | |
| 1679 } | |
| 1680 global->name = (jstring)JNIHandles::make_local(env, flag_name()); | |
| 1681 | |
| 1682 if (flag->is_bool()) { | |
| 1683 global->value.z = flag->get_bool() ? JNI_TRUE : JNI_FALSE; | |
| 1684 global->type = JMM_VMGLOBAL_TYPE_JBOOLEAN; | |
| 1685 } else if (flag->is_intx()) { | |
| 1686 global->value.j = (jlong)flag->get_intx(); | |
| 1687 global->type = JMM_VMGLOBAL_TYPE_JLONG; | |
| 1688 } else if (flag->is_uintx()) { | |
| 1689 global->value.j = (jlong)flag->get_uintx(); | |
| 1690 global->type = JMM_VMGLOBAL_TYPE_JLONG; | |
|
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|
1691 } else if (flag->is_uint64_t()) { |
|
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diff
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|
1692 global->value.j = (jlong)flag->get_uint64_t(); |
|
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|
1693 global->type = JMM_VMGLOBAL_TYPE_JLONG; |
| 0 | 1694 } else if (flag->is_ccstr()) { |
|
1067
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|
1695 Handle str = java_lang_String::create_from_str(flag->get_ccstr(), CHECK_false); |
| 0 | 1696 global->value.l = (jobject)JNIHandles::make_local(env, str()); |
| 1697 global->type = JMM_VMGLOBAL_TYPE_JSTRING; | |
|
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diff
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|
1698 } else { |
|
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diff
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|
1699 global->type = JMM_VMGLOBAL_TYPE_UNKNOWN; |
|
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diff
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|
1700 return false; |
| 0 | 1701 } |
| 1702 | |
| 1703 global->writeable = flag->is_writeable(); | |
| 1704 global->external = flag->is_external(); | |
|
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|
1705 switch (flag->get_origin()) { |
|
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|
1706 case Flag::DEFAULT: |
| 0 | 1707 global->origin = JMM_VMGLOBAL_ORIGIN_DEFAULT; |
| 1708 break; | |
|
12322
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diff
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|
1709 case Flag::COMMAND_LINE: |
| 0 | 1710 global->origin = JMM_VMGLOBAL_ORIGIN_COMMAND_LINE; |
| 1711 break; | |
|
12322
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8024545: make develop and notproduct flag values available in product builds
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diff
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|
1712 case Flag::ENVIRON_VAR: |
| 0 | 1713 global->origin = JMM_VMGLOBAL_ORIGIN_ENVIRON_VAR; |
| 1714 break; | |
|
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|
1715 case Flag::CONFIG_FILE: |
| 0 | 1716 global->origin = JMM_VMGLOBAL_ORIGIN_CONFIG_FILE; |
| 1717 break; | |
|
12322
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|
1718 case Flag::MANAGEMENT: |
| 0 | 1719 global->origin = JMM_VMGLOBAL_ORIGIN_MANAGEMENT; |
| 1720 break; | |
|
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|
1721 case Flag::ERGONOMIC: |
| 0 | 1722 global->origin = JMM_VMGLOBAL_ORIGIN_ERGONOMIC; |
| 1723 break; | |
| 1724 default: | |
| 1725 global->origin = JMM_VMGLOBAL_ORIGIN_OTHER; | |
| 1726 } | |
|
1067
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diff
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|
1727 |
|
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|
1728 return true; |
| 0 | 1729 } |
| 1730 | |
| 1731 // Fill globals array of count length with jmmVMGlobal entries | |
| 1732 // specified by names. If names == NULL, fill globals array | |
| 1733 // with all Flags. Return value is number of entries | |
| 1734 // created in globals. | |
| 1735 // If a Flag with a given name in an array element does not | |
| 1736 // exist, globals[i].name will be set to NULL. | |
| 1737 JVM_ENTRY(jint, jmm_GetVMGlobals(JNIEnv *env, | |
| 1738 jobjectArray names, | |
| 1739 jmmVMGlobal *globals, | |
| 1740 jint count)) | |
| 1741 | |
| 1742 | |
| 1743 if (globals == NULL) { | |
| 1744 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1745 } | |
| 1746 | |
| 1747 ResourceMark rm(THREAD); | |
| 1748 | |
| 1749 if (names != NULL) { | |
| 1750 // return the requested globals | |
| 1751 objArrayOop ta = objArrayOop(JNIHandles::resolve_non_null(names)); | |
| 1752 objArrayHandle names_ah(THREAD, ta); | |
| 1753 // Make sure we have a String array | |
|
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6779
diff
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|
1754 Klass* element_klass = ObjArrayKlass::cast(names_ah->klass())->element_klass(); |
| 1142 | 1755 if (element_klass != SystemDictionary::String_klass()) { |
| 0 | 1756 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), |
| 1757 "Array element type is not String class", 0); | |
| 1758 } | |
| 1759 | |
| 1760 int names_length = names_ah->length(); | |
| 1761 int num_entries = 0; | |
| 1762 for (int i = 0; i < names_length && i < count; i++) { | |
| 1763 oop s = names_ah->obj_at(i); | |
| 1764 if (s == NULL) { | |
| 1765 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1766 } | |
| 1767 | |
| 1768 Handle sh(THREAD, s); | |
| 1769 char* str = java_lang_String::as_utf8_string(s); | |
| 1770 Flag* flag = Flag::find_flag(str, strlen(str)); | |
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1771 if (flag != NULL && |
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1772 add_global_entry(env, sh, &globals[i], flag, THREAD)) { |
| 0 | 1773 num_entries++; |
| 1774 } else { | |
| 1775 globals[i].name = NULL; | |
| 1776 } | |
| 1777 } | |
| 1778 return num_entries; | |
| 1779 } else { | |
| 1780 // return all globals if names == NULL | |
| 1781 | |
| 1782 // last flag entry is always NULL, so subtract 1 | |
| 1783 int nFlags = (int) Flag::numFlags - 1; | |
| 1784 Handle null_h; | |
| 1785 int num_entries = 0; | |
| 1786 for (int i = 0; i < nFlags && num_entries < count; i++) { | |
| 1787 Flag* flag = &Flag::flags[i]; | |
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1788 // Exclude notproduct and develop flags in product builds. |
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1789 if (flag->is_constant_in_binary()) { |
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1790 continue; |
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1791 } |
| 350 | 1792 // Exclude the locked (diagnostic, experimental) flags |
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1793 if ((flag->is_unlocked() || flag->is_unlocker()) && |
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1794 add_global_entry(env, null_h, &globals[num_entries], flag, THREAD)) { |
| 0 | 1795 num_entries++; |
| 1796 } | |
| 1797 } | |
| 1798 return num_entries; | |
| 1799 } | |
| 1800 JVM_END | |
| 1801 | |
| 1802 JVM_ENTRY(void, jmm_SetVMGlobal(JNIEnv *env, jstring flag_name, jvalue new_value)) | |
| 1803 ResourceMark rm(THREAD); | |
| 1804 | |
| 1805 oop fn = JNIHandles::resolve_external_guard(flag_name); | |
| 1806 if (fn == NULL) { | |
| 1807 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 1808 "The flag name cannot be null."); | |
| 1809 } | |
| 1810 char* name = java_lang_String::as_utf8_string(fn); | |
| 1811 Flag* flag = Flag::find_flag(name, strlen(name)); | |
| 1812 if (flag == NULL) { | |
| 1813 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1814 "Flag does not exist."); | |
| 1815 } | |
| 1816 if (!flag->is_writeable()) { | |
| 1817 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1818 "This flag is not writeable."); | |
| 1819 } | |
| 1820 | |
| 1821 bool succeed; | |
| 1822 if (flag->is_bool()) { | |
| 1823 bool bvalue = (new_value.z == JNI_TRUE ? true : false); | |
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1824 succeed = CommandLineFlags::boolAtPut(name, &bvalue, Flag::MANAGEMENT); |
| 0 | 1825 } else if (flag->is_intx()) { |
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1826 intx ivalue = (intx)new_value.j; |
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1827 succeed = CommandLineFlags::intxAtPut(name, &ivalue, Flag::MANAGEMENT); |
| 0 | 1828 } else if (flag->is_uintx()) { |
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1829 uintx uvalue = (uintx)new_value.j; |
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1830 succeed = CommandLineFlags::uintxAtPut(name, &uvalue, Flag::MANAGEMENT); |
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1831 } else if (flag->is_uint64_t()) { |
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1832 uint64_t uvalue = (uint64_t)new_value.j; |
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1833 succeed = CommandLineFlags::uint64_tAtPut(name, &uvalue, Flag::MANAGEMENT); |
| 0 | 1834 } else if (flag->is_ccstr()) { |
| 1835 oop str = JNIHandles::resolve_external_guard(new_value.l); | |
| 1836 if (str == NULL) { | |
| 1837 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 1838 } | |
| 1839 ccstr svalue = java_lang_String::as_utf8_string(str); | |
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1840 succeed = CommandLineFlags::ccstrAtPut(name, &svalue, Flag::MANAGEMENT); |
| 0 | 1841 } |
| 1842 assert(succeed, "Setting flag should succeed"); | |
| 1843 JVM_END | |
| 1844 | |
| 1845 class ThreadTimesClosure: public ThreadClosure { | |
| 1846 private: | |
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1847 objArrayHandle _names_strings; |
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1848 char **_names_chars; |
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1849 typeArrayHandle _times; |
| 0 | 1850 int _names_len; |
| 1851 int _times_len; | |
| 1852 int _count; | |
| 1853 | |
| 1854 public: | |
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1855 ThreadTimesClosure(objArrayHandle names, typeArrayHandle times); |
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1856 ~ThreadTimesClosure(); |
| 0 | 1857 virtual void do_thread(Thread* thread); |
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1858 void do_unlocked(); |
| 0 | 1859 int count() { return _count; } |
| 1860 }; | |
| 1861 | |
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1862 ThreadTimesClosure::ThreadTimesClosure(objArrayHandle names, |
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1863 typeArrayHandle times) { |
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1864 assert(names() != NULL, "names was NULL"); |
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1865 assert(times() != NULL, "times was NULL"); |
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1866 _names_strings = names; |
| 0 | 1867 _names_len = names->length(); |
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1868 _names_chars = NEW_C_HEAP_ARRAY(char*, _names_len, mtInternal); |
| 0 | 1869 _times = times; |
| 1870 _times_len = times->length(); | |
| 1871 _count = 0; | |
| 1872 } | |
| 1873 | |
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1874 // |
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1875 // Called with Threads_lock held |
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1876 // |
| 0 | 1877 void ThreadTimesClosure::do_thread(Thread* thread) { |
| 1878 assert(thread != NULL, "thread was NULL"); | |
| 1879 | |
| 1880 // exclude externally visible JavaThreads | |
| 1881 if (thread->is_Java_thread() && !thread->is_hidden_from_external_view()) { | |
| 1882 return; | |
| 1883 } | |
| 1884 | |
| 1885 if (_count >= _names_len || _count >= _times_len) { | |
| 1886 // skip if the result array is not big enough | |
| 1887 return; | |
| 1888 } | |
| 1889 | |
| 1890 EXCEPTION_MARK; | |
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1891 ResourceMark rm(THREAD); // thread->name() uses ResourceArea |
| 0 | 1892 |
| 1893 assert(thread->name() != NULL, "All threads should have a name"); | |
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1894 _names_chars[_count] = strdup(thread->name()); |
| 0 | 1895 _times->long_at_put(_count, os::is_thread_cpu_time_supported() ? |
| 1896 os::thread_cpu_time(thread) : -1); | |
| 1897 _count++; | |
| 1898 } | |
| 1899 | |
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1900 // Called without Threads_lock, we can allocate String objects. |
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1901 void ThreadTimesClosure::do_unlocked() { |
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1902 |
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1903 EXCEPTION_MARK; |
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1904 for (int i = 0; i < _count; i++) { |
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1905 Handle s = java_lang_String::create_from_str(_names_chars[i], CHECK); |
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1906 _names_strings->obj_at_put(i, s()); |
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1907 } |
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1908 } |
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1909 |
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1910 ThreadTimesClosure::~ThreadTimesClosure() { |
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1911 for (int i = 0; i < _count; i++) { |
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1912 free(_names_chars[i]); |
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1913 } |
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1914 FREE_C_HEAP_ARRAY(char *, _names_chars, mtInternal); |
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1915 } |
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1916 |
| 0 | 1917 // Fills names with VM internal thread names and times with the corresponding |
| 1918 // CPU times. If names or times is NULL, a NullPointerException is thrown. | |
| 1919 // If the element type of names is not String, an IllegalArgumentException is | |
| 1920 // thrown. | |
| 1921 // If an array is not large enough to hold all the entries, only the entries | |
| 1922 // that fit will be returned. Return value is the number of VM internal | |
| 1923 // threads entries. | |
| 1924 JVM_ENTRY(jint, jmm_GetInternalThreadTimes(JNIEnv *env, | |
| 1925 jobjectArray names, | |
| 1926 jlongArray times)) | |
| 1927 if (names == NULL || times == NULL) { | |
| 1928 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1929 } | |
| 1930 objArrayOop na = objArrayOop(JNIHandles::resolve_non_null(names)); | |
| 1931 objArrayHandle names_ah(THREAD, na); | |
| 1932 | |
| 1933 // Make sure we have a String array | |
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1934 Klass* element_klass = ObjArrayKlass::cast(names_ah->klass())->element_klass(); |
| 1142 | 1935 if (element_klass != SystemDictionary::String_klass()) { |
| 0 | 1936 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), |
| 1937 "Array element type is not String class", 0); | |
| 1938 } | |
| 1939 | |
| 1940 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(times)); | |
| 1941 typeArrayHandle times_ah(THREAD, ta); | |
| 1942 | |
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1943 ThreadTimesClosure ttc(names_ah, times_ah); |
| 0 | 1944 { |
| 1945 MutexLockerEx ml(Threads_lock); | |
| 1946 Threads::threads_do(&ttc); | |
| 1947 } | |
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1948 ttc.do_unlocked(); |
| 0 | 1949 return ttc.count(); |
| 1950 JVM_END | |
| 1951 | |
| 1952 static Handle find_deadlocks(bool object_monitors_only, TRAPS) { | |
| 1953 ResourceMark rm(THREAD); | |
| 1954 | |
| 1955 VM_FindDeadlocks op(!object_monitors_only /* also check concurrent locks? */); | |
| 1956 VMThread::execute(&op); | |
| 1957 | |
| 1958 DeadlockCycle* deadlocks = op.result(); | |
| 1959 if (deadlocks == NULL) { | |
| 1960 // no deadlock found and return | |
| 1961 return Handle(); | |
| 1962 } | |
| 1963 | |
| 1964 int num_threads = 0; | |
| 1965 DeadlockCycle* cycle; | |
| 1966 for (cycle = deadlocks; cycle != NULL; cycle = cycle->next()) { | |
| 1967 num_threads += cycle->num_threads(); | |
| 1968 } | |
| 1969 | |
| 1142 | 1970 objArrayOop r = oopFactory::new_objArray(SystemDictionary::Thread_klass(), num_threads, CHECK_NH); |
| 0 | 1971 objArrayHandle threads_ah(THREAD, r); |
| 1972 | |
| 1973 int index = 0; | |
| 1974 for (cycle = deadlocks; cycle != NULL; cycle = cycle->next()) { | |
| 1975 GrowableArray<JavaThread*>* deadlock_threads = cycle->threads(); | |
| 1976 int len = deadlock_threads->length(); | |
| 1977 for (int i = 0; i < len; i++) { | |
| 1978 threads_ah->obj_at_put(index, deadlock_threads->at(i)->threadObj()); | |
| 1979 index++; | |
| 1980 } | |
| 1981 } | |
| 1982 return threads_ah; | |
| 1983 } | |
| 1984 | |
| 1985 // Finds cycles of threads that are deadlocked involved in object monitors | |
| 1986 // and JSR-166 synchronizers. | |
| 1987 // Returns an array of Thread objects which are in deadlock, if any. | |
| 1988 // Otherwise, returns NULL. | |
| 1989 // | |
| 1990 // Input parameter: | |
| 1991 // object_monitors_only - if true, only check object monitors | |
| 1992 // | |
| 1993 JVM_ENTRY(jobjectArray, jmm_FindDeadlockedThreads(JNIEnv *env, jboolean object_monitors_only)) | |
| 1994 Handle result = find_deadlocks(object_monitors_only != 0, CHECK_0); | |
| 1995 return (jobjectArray) JNIHandles::make_local(env, result()); | |
| 1996 JVM_END | |
| 1997 | |
| 1998 // Finds cycles of threads that are deadlocked on monitor locks | |
| 1999 // Returns an array of Thread objects which are in deadlock, if any. | |
| 2000 // Otherwise, returns NULL. | |
| 2001 JVM_ENTRY(jobjectArray, jmm_FindMonitorDeadlockedThreads(JNIEnv *env)) | |
| 2002 Handle result = find_deadlocks(true, CHECK_0); | |
| 2003 return (jobjectArray) JNIHandles::make_local(env, result()); | |
| 2004 JVM_END | |
| 2005 | |
| 2006 // Gets the information about GC extension attributes including | |
| 2007 // the name of the attribute, its type, and a short description. | |
| 2008 // | |
| 2009 // Input parameters: | |
| 2010 // mgr - GC memory manager | |
| 2011 // info - caller allocated array of jmmExtAttributeInfo | |
| 2012 // count - number of elements of the info array | |
| 2013 // | |
| 2014 // Returns the number of GC extension attributes filled in the info array; or | |
| 2015 // -1 if info is not big enough | |
| 2016 // | |
| 2017 JVM_ENTRY(jint, jmm_GetGCExtAttributeInfo(JNIEnv *env, jobject mgr, jmmExtAttributeInfo* info, jint count)) | |
| 2018 // All GC memory managers have 1 attribute (number of GC threads) | |
| 2019 if (count == 0) { | |
| 2020 return 0; | |
| 2021 } | |
| 2022 | |
| 2023 if (info == NULL) { | |
| 2024 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 2025 } | |
| 2026 | |
| 2027 info[0].name = "GcThreadCount"; | |
| 2028 info[0].type = 'I'; | |
| 2029 info[0].description = "Number of GC threads"; | |
| 2030 return 1; | |
| 2031 JVM_END | |
| 2032 | |
| 2033 // verify the given array is an array of java/lang/management/MemoryUsage objects | |
| 2034 // of a given length and return the objArrayOop | |
| 2035 static objArrayOop get_memory_usage_objArray(jobjectArray array, int length, TRAPS) { | |
| 2036 if (array == NULL) { | |
| 2037 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 2038 } | |
| 2039 | |
| 2040 objArrayOop oa = objArrayOop(JNIHandles::resolve_non_null(array)); | |
| 2041 objArrayHandle array_h(THREAD, oa); | |
| 2042 | |
| 2043 // array must be of the given length | |
| 2044 if (length != array_h->length()) { | |
| 2045 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2046 "The length of the given MemoryUsage array does not match the number of memory pools.", 0); | |
| 2047 } | |
| 2048 | |
| 2049 // check if the element of array is of type MemoryUsage class | |
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2050 Klass* usage_klass = Management::java_lang_management_MemoryUsage_klass(CHECK_0); |
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2051 Klass* element_klass = ObjArrayKlass::cast(array_h->klass())->element_klass(); |
| 0 | 2052 if (element_klass != usage_klass) { |
| 2053 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2054 "The element type is not MemoryUsage class", 0); | |
| 2055 } | |
| 2056 | |
| 2057 return array_h(); | |
| 2058 } | |
| 2059 | |
| 2060 // Gets the statistics of the last GC of a given GC memory manager. | |
| 2061 // Input parameters: | |
| 2062 // obj - GarbageCollectorMXBean object | |
| 2063 // gc_stat - caller allocated jmmGCStat where: | |
| 2064 // a. before_gc_usage - array of MemoryUsage objects | |
| 2065 // b. after_gc_usage - array of MemoryUsage objects | |
| 2066 // c. gc_ext_attributes_values_size is set to the | |
| 2067 // gc_ext_attribute_values array allocated | |
| 2068 // d. gc_ext_attribute_values is a caller allocated array of jvalue. | |
| 2069 // | |
| 2070 // On return, | |
| 2071 // gc_index == 0 indicates no GC statistics available | |
| 2072 // | |
| 2073 // before_gc_usage and after_gc_usage - filled with per memory pool | |
| 2074 // before and after GC usage in the same order as the memory pools | |
| 2075 // returned by GetMemoryPools for a given GC memory manager. | |
| 2076 // num_gc_ext_attributes indicates the number of elements in | |
| 2077 // the gc_ext_attribute_values array is filled; or | |
| 2078 // -1 if the gc_ext_attributes_values array is not big enough | |
| 2079 // | |
| 2080 JVM_ENTRY(void, jmm_GetLastGCStat(JNIEnv *env, jobject obj, jmmGCStat *gc_stat)) | |
| 2081 ResourceMark rm(THREAD); | |
| 2082 | |
| 2083 if (gc_stat->gc_ext_attribute_values_size > 0 && gc_stat->gc_ext_attribute_values == NULL) { | |
| 2084 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 2085 } | |
| 2086 | |
| 2087 // Get the GCMemoryManager | |
| 2088 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK); | |
| 2089 | |
| 2090 // Make a copy of the last GC statistics | |
| 2091 // GC may occur while constructing the last GC information | |
| 2092 int num_pools = MemoryService::num_memory_pools(); | |
|
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2093 GCStatInfo stat(num_pools); |
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2094 if (mgr->get_last_gc_stat(&stat) == 0) { |
|
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2095 gc_stat->gc_index = 0; |
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2096 return; |
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2097 } |
| 0 | 2098 |
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2099 gc_stat->gc_index = stat.gc_index(); |
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2100 gc_stat->start_time = Management::ticks_to_ms(stat.start_time()); |
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2101 gc_stat->end_time = Management::ticks_to_ms(stat.end_time()); |
| 0 | 2102 |
| 2103 // Current implementation does not have GC extension attributes | |
| 2104 gc_stat->num_gc_ext_attributes = 0; | |
| 2105 | |
| 2106 // Fill the arrays of MemoryUsage objects with before and after GC | |
| 2107 // per pool memory usage | |
| 2108 objArrayOop bu = get_memory_usage_objArray(gc_stat->usage_before_gc, | |
| 2109 num_pools, | |
| 2110 CHECK); | |
| 2111 objArrayHandle usage_before_gc_ah(THREAD, bu); | |
| 2112 | |
| 2113 objArrayOop au = get_memory_usage_objArray(gc_stat->usage_after_gc, | |
| 2114 num_pools, | |
| 2115 CHECK); | |
| 2116 objArrayHandle usage_after_gc_ah(THREAD, au); | |
| 2117 | |
| 2118 for (int i = 0; i < num_pools; i++) { | |
|
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2119 Handle before_usage = MemoryService::create_MemoryUsage_obj(stat.before_gc_usage_for_pool(i), CHECK); |
| 0 | 2120 Handle after_usage; |
| 2121 | |
|
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2122 MemoryUsage u = stat.after_gc_usage_for_pool(i); |
| 0 | 2123 if (u.max_size() == 0 && u.used() > 0) { |
| 2124 // If max size == 0, this pool is a survivor space. | |
| 2125 // Set max size = -1 since the pools will be swapped after GC. | |
| 2126 MemoryUsage usage(u.init_size(), u.used(), u.committed(), (size_t)-1); | |
| 2127 after_usage = MemoryService::create_MemoryUsage_obj(usage, CHECK); | |
| 2128 } else { | |
|
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2129 after_usage = MemoryService::create_MemoryUsage_obj(stat.after_gc_usage_for_pool(i), CHECK); |
| 0 | 2130 } |
| 2131 usage_before_gc_ah->obj_at_put(i, before_usage()); | |
| 2132 usage_after_gc_ah->obj_at_put(i, after_usage()); | |
| 2133 } | |
| 2134 | |
| 2135 if (gc_stat->gc_ext_attribute_values_size > 0) { | |
| 2136 // Current implementation only has 1 attribute (number of GC threads) | |
| 2137 // The type is 'I' | |
| 2138 gc_stat->gc_ext_attribute_values[0].i = mgr->num_gc_threads(); | |
| 2139 } | |
| 2140 JVM_END | |
| 2141 | |
|
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2142 JVM_ENTRY(void, jmm_SetGCNotificationEnabled(JNIEnv *env, jobject obj, jboolean enabled)) |
|
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2143 ResourceMark rm(THREAD); |
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2144 // Get the GCMemoryManager |
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2145 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK); |
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2146 mgr->set_notification_enabled(enabled?true:false); |
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2147 JVM_END |
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2148 |
| 0 | 2149 // Dump heap - Returns 0 if succeeds. |
| 2150 JVM_ENTRY(jint, jmm_DumpHeap0(JNIEnv *env, jstring outputfile, jboolean live)) | |
|
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2151 #if INCLUDE_SERVICES |
| 0 | 2152 ResourceMark rm(THREAD); |
| 2153 oop on = JNIHandles::resolve_external_guard(outputfile); | |
| 2154 if (on == NULL) { | |
| 2155 THROW_MSG_(vmSymbols::java_lang_NullPointerException(), | |
| 2156 "Output file name cannot be null.", -1); | |
| 2157 } | |
|
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2158 char* name = java_lang_String::as_platform_dependent_str(on, CHECK_(-1)); |
| 0 | 2159 if (name == NULL) { |
| 2160 THROW_MSG_(vmSymbols::java_lang_NullPointerException(), | |
| 2161 "Output file name cannot be null.", -1); | |
| 2162 } | |
| 2163 HeapDumper dumper(live ? true : false); | |
| 2164 if (dumper.dump(name) != 0) { | |
| 2165 const char* errmsg = dumper.error_as_C_string(); | |
| 2166 THROW_MSG_(vmSymbols::java_io_IOException(), errmsg, -1); | |
| 2167 } | |
| 2168 return 0; | |
|
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2169 #else // INCLUDE_SERVICES |
| 0 | 2170 return -1; |
|
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2171 #endif // INCLUDE_SERVICES |
| 0 | 2172 JVM_END |
| 2173 | |
| 4133 | 2174 JVM_ENTRY(jobjectArray, jmm_GetDiagnosticCommands(JNIEnv *env)) |
| 2175 ResourceMark rm(THREAD); | |
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2176 GrowableArray<const char *>* dcmd_list = DCmdFactory::DCmd_list(DCmd_Source_MBean); |
| 4133 | 2177 objArrayOop cmd_array_oop = oopFactory::new_objArray(SystemDictionary::String_klass(), |
| 2178 dcmd_list->length(), CHECK_NULL); | |
| 2179 objArrayHandle cmd_array(THREAD, cmd_array_oop); | |
| 2180 for (int i = 0; i < dcmd_list->length(); i++) { | |
| 2181 oop cmd_name = java_lang_String::create_oop_from_str(dcmd_list->at(i), CHECK_NULL); | |
| 2182 cmd_array->obj_at_put(i, cmd_name); | |
| 2183 } | |
| 2184 return (jobjectArray) JNIHandles::make_local(env, cmd_array()); | |
| 2185 JVM_END | |
| 2186 | |
| 2187 JVM_ENTRY(void, jmm_GetDiagnosticCommandInfo(JNIEnv *env, jobjectArray cmds, | |
| 2188 dcmdInfo* infoArray)) | |
| 2189 if (cmds == NULL || infoArray == NULL) { | |
| 2190 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 2191 } | |
| 2192 | |
| 2193 ResourceMark rm(THREAD); | |
| 2194 | |
| 2195 objArrayOop ca = objArrayOop(JNIHandles::resolve_non_null(cmds)); | |
| 2196 objArrayHandle cmds_ah(THREAD, ca); | |
| 2197 | |
| 2198 // Make sure we have a String array | |
|
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2199 Klass* element_klass = ObjArrayKlass::cast(cmds_ah->klass())->element_klass(); |
| 4133 | 2200 if (element_klass != SystemDictionary::String_klass()) { |
| 2201 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2202 "Array element type is not String class"); | |
| 2203 } | |
| 2204 | |
|
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2205 GrowableArray<DCmdInfo *>* info_list = DCmdFactory::DCmdInfo_list(DCmd_Source_MBean); |
| 4133 | 2206 |
| 2207 int num_cmds = cmds_ah->length(); | |
| 2208 for (int i = 0; i < num_cmds; i++) { | |
| 2209 oop cmd = cmds_ah->obj_at(i); | |
| 2210 if (cmd == NULL) { | |
| 2211 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2212 "Command name cannot be null."); | |
| 2213 } | |
| 2214 char* cmd_name = java_lang_String::as_utf8_string(cmd); | |
| 2215 if (cmd_name == NULL) { | |
| 2216 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2217 "Command name cannot be null."); | |
| 2218 } | |
| 2219 int pos = info_list->find((void*)cmd_name,DCmdInfo::by_name); | |
| 2220 if (pos == -1) { | |
| 2221 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2222 "Unknown diagnostic command"); | |
| 2223 } | |
| 2224 DCmdInfo* info = info_list->at(pos); | |
| 2225 infoArray[i].name = info->name(); | |
| 2226 infoArray[i].description = info->description(); | |
| 2227 infoArray[i].impact = info->impact(); | |
|
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2228 JavaPermission p = info->permission(); |
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2229 infoArray[i].permission_class = p._class; |
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2230 infoArray[i].permission_name = p._name; |
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2231 infoArray[i].permission_action = p._action; |
| 4133 | 2232 infoArray[i].num_arguments = info->num_arguments(); |
| 2233 infoArray[i].enabled = info->is_enabled(); | |
| 2234 } | |
| 2235 JVM_END | |
| 2236 | |
| 2237 JVM_ENTRY(void, jmm_GetDiagnosticCommandArgumentsInfo(JNIEnv *env, | |
| 2238 jstring command, dcmdArgInfo* infoArray)) | |
| 2239 ResourceMark rm(THREAD); | |
| 2240 oop cmd = JNIHandles::resolve_external_guard(command); | |
| 2241 if (cmd == NULL) { | |
| 2242 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2243 "Command line cannot be null."); | |
| 2244 } | |
| 2245 char* cmd_name = java_lang_String::as_utf8_string(cmd); | |
| 2246 if (cmd_name == NULL) { | |
| 2247 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2248 "Command line content cannot be null."); | |
| 2249 } | |
| 2250 DCmd* dcmd = NULL; | |
|
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2251 DCmdFactory*factory = DCmdFactory::factory(DCmd_Source_MBean, cmd_name, |
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2252 strlen(cmd_name)); |
| 4133 | 2253 if (factory != NULL) { |
| 2254 dcmd = factory->create_resource_instance(NULL); | |
| 2255 } | |
| 2256 if (dcmd == NULL) { | |
| 2257 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2258 "Unknown diagnostic command"); | |
| 2259 } | |
| 2260 DCmdMark mark(dcmd); | |
| 2261 GrowableArray<DCmdArgumentInfo*>* array = dcmd->argument_info_array(); | |
| 2262 if (array->length() == 0) { | |
| 2263 return; | |
| 2264 } | |
| 2265 for (int i = 0; i < array->length(); i++) { | |
| 2266 infoArray[i].name = array->at(i)->name(); | |
| 2267 infoArray[i].description = array->at(i)->description(); | |
| 2268 infoArray[i].type = array->at(i)->type(); | |
| 2269 infoArray[i].default_string = array->at(i)->default_string(); | |
| 2270 infoArray[i].mandatory = array->at(i)->is_mandatory(); | |
| 2271 infoArray[i].option = array->at(i)->is_option(); | |
|
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2272 infoArray[i].multiple = array->at(i)->is_multiple(); |
| 4133 | 2273 infoArray[i].position = array->at(i)->position(); |
| 2274 } | |
| 2275 return; | |
| 2276 JVM_END | |
| 2277 | |
| 2278 JVM_ENTRY(jstring, jmm_ExecuteDiagnosticCommand(JNIEnv *env, jstring commandline)) | |
| 2279 ResourceMark rm(THREAD); | |
| 2280 oop cmd = JNIHandles::resolve_external_guard(commandline); | |
| 2281 if (cmd == NULL) { | |
| 2282 THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(), | |
| 2283 "Command line cannot be null."); | |
| 2284 } | |
| 2285 char* cmdline = java_lang_String::as_utf8_string(cmd); | |
| 2286 if (cmdline == NULL) { | |
| 2287 THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(), | |
| 2288 "Command line content cannot be null."); | |
| 2289 } | |
| 2290 bufferedStream output; | |
|
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2291 DCmd::parse_and_execute(DCmd_Source_MBean, &output, cmdline, ' ', CHECK_NULL); |
| 4133 | 2292 oop result = java_lang_String::create_oop_from_str(output.as_string(), CHECK_NULL); |
| 2293 return (jstring) JNIHandles::make_local(env, result); | |
| 2294 JVM_END | |
| 2295 | |
|
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2296 JVM_ENTRY(void, jmm_SetDiagnosticFrameworkNotificationEnabled(JNIEnv *env, jboolean enabled)) |
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2297 DCmdFactory::set_jmx_notification_enabled(enabled?true:false); |
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2298 JVM_END |
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2299 |
| 0 | 2300 jlong Management::ticks_to_ms(jlong ticks) { |
| 2301 assert(os::elapsed_frequency() > 0, "Must be non-zero"); | |
| 2302 return (jlong)(((double)ticks / (double)os::elapsed_frequency()) | |
| 2303 * (double)1000.0); | |
| 2304 } | |
| 2305 | |
| 2306 const struct jmmInterface_1_ jmm_interface = { | |
| 2307 NULL, | |
| 2308 NULL, | |
| 2309 jmm_GetVersion, | |
| 2310 jmm_GetOptionalSupport, | |
| 2311 jmm_GetInputArguments, | |
| 2312 jmm_GetThreadInfo, | |
| 2313 jmm_GetInputArgumentArray, | |
| 2314 jmm_GetMemoryPools, | |
| 2315 jmm_GetMemoryManagers, | |
| 2316 jmm_GetMemoryPoolUsage, | |
| 2317 jmm_GetPeakMemoryPoolUsage, | |
|
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2318 jmm_GetThreadAllocatedMemory, |
| 0 | 2319 jmm_GetMemoryUsage, |
| 2320 jmm_GetLongAttribute, | |
| 2321 jmm_GetBoolAttribute, | |
| 2322 jmm_SetBoolAttribute, | |
| 2323 jmm_GetLongAttributes, | |
| 2324 jmm_FindMonitorDeadlockedThreads, | |
| 2325 jmm_GetThreadCpuTime, | |
| 2326 jmm_GetVMGlobalNames, | |
| 2327 jmm_GetVMGlobals, | |
| 2328 jmm_GetInternalThreadTimes, | |
| 2329 jmm_ResetStatistic, | |
| 2330 jmm_SetPoolSensor, | |
| 2331 jmm_SetPoolThreshold, | |
| 2332 jmm_GetPoolCollectionUsage, | |
| 2333 jmm_GetGCExtAttributeInfo, | |
| 2334 jmm_GetLastGCStat, | |
| 2335 jmm_GetThreadCpuTimeWithKind, | |
|
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2336 jmm_GetThreadCpuTimesWithKind, |
| 0 | 2337 jmm_DumpHeap0, |
| 2338 jmm_FindDeadlockedThreads, | |
| 2339 jmm_SetVMGlobal, | |
| 2340 NULL, | |
|
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2341 jmm_DumpThreads, |
| 4133 | 2342 jmm_SetGCNotificationEnabled, |
| 2343 jmm_GetDiagnosticCommands, | |
| 2344 jmm_GetDiagnosticCommandInfo, | |
| 2345 jmm_GetDiagnosticCommandArgumentsInfo, | |
|
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2346 jmm_ExecuteDiagnosticCommand, |
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2347 jmm_SetDiagnosticFrameworkNotificationEnabled |
| 0 | 2348 }; |
|
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2349 #endif // INCLUDE_MANAGEMENT |
| 0 | 2350 |
| 2351 void* Management::get_jmm_interface(int version) { | |
|
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2352 #if INCLUDE_MANAGEMENT |
| 0 | 2353 if (version == JMM_VERSION_1_0) { |
| 2354 return (void*) &jmm_interface; | |
| 2355 } | |
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2356 #endif // INCLUDE_MANAGEMENT |
| 0 | 2357 return NULL; |
| 2358 } |