Mercurial > hg > truffle
annotate src/share/vm/services/management.cpp @ 17937:78bbf4d43a14
8037816: Fix for 8036122 breaks build with Xcode5/clang
8043029: Change 8037816 breaks HS build with older GCC versions which don't support diagnostic pragmas
8043164: Format warning in traceStream.hpp
Summary: Backport of main fix + two corrections, enables clang compilation, turns on format attributes, corrects/mutes warnings
Reviewed-by: kvn, coleenp, iveresov, twisti
| author | drchase |
|---|---|
| date | Thu, 22 May 2014 15:52:41 -0400 |
| parents | a034dc5e910b |
| children | 52b4284cb496 ce8f6bb717c9 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "compiler/compileBroker.hpp" | |
| 28 #include "memory/iterator.hpp" | |
| 29 #include "memory/oopFactory.hpp" | |
| 30 #include "memory/resourceArea.hpp" | |
| 31 #include "oops/klass.hpp" | |
| 32 #include "oops/objArrayKlass.hpp" | |
| 33 #include "oops/oop.inline.hpp" | |
| 34 #include "runtime/arguments.hpp" | |
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35 #include "runtime/globals.hpp" |
| 1972 | 36 #include "runtime/handles.inline.hpp" |
| 37 #include "runtime/interfaceSupport.hpp" | |
| 38 #include "runtime/javaCalls.hpp" | |
| 39 #include "runtime/jniHandles.hpp" | |
| 40 #include "runtime/os.hpp" | |
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41 #include "runtime/serviceThread.hpp" |
| 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 |
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58 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
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59 |
| 0 | 60 PerfVariable* Management::_begin_vm_creation_time = NULL; |
| 61 PerfVariable* Management::_end_vm_creation_time = NULL; | |
| 62 PerfVariable* Management::_vm_init_done_time = NULL; | |
| 63 | |
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64 Klass* Management::_sensor_klass = NULL; |
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65 Klass* Management::_threadInfo_klass = NULL; |
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66 Klass* Management::_memoryUsage_klass = NULL; |
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67 Klass* Management::_memoryPoolMXBean_klass = NULL; |
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68 Klass* Management::_memoryManagerMXBean_klass = NULL; |
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69 Klass* Management::_garbageCollectorMXBean_klass = NULL; |
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70 Klass* Management::_managementFactory_klass = NULL; |
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71 Klass* Management::_garbageCollectorImpl_klass = NULL; |
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72 Klass* Management::_gcInfo_klass = NULL; |
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73 Klass* Management::_diagnosticCommandImpl_klass = NULL; |
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74 Klass* Management::_managementFactoryHelper_klass = NULL; |
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75 |
| 0 | 76 |
| 77 jmmOptionalSupport Management::_optional_support = {0}; | |
| 78 TimeStamp Management::_stamp; | |
| 79 | |
| 80 void management_init() { | |
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81 #if INCLUDE_MANAGEMENT |
| 0 | 82 Management::init(); |
| 83 ThreadService::init(); | |
| 84 RuntimeService::init(); | |
| 85 ClassLoadingService::init(); | |
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86 #else |
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87 ThreadService::init(); |
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88 // Make sure the VM version is initialized |
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89 // This is normally called by RuntimeService::init(). |
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90 // Since that is conditionalized out, we need to call it here. |
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91 Abstract_VM_Version::initialize(); |
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92 #endif // INCLUDE_MANAGEMENT |
| 0 | 93 } |
| 94 | |
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95 #if INCLUDE_MANAGEMENT |
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96 |
| 0 | 97 void Management::init() { |
| 98 EXCEPTION_MARK; | |
| 99 | |
| 100 // These counters are for java.lang.management API support. | |
| 101 // They are created even if -XX:-UsePerfData is set and in | |
| 102 // that case, they will be allocated on C heap. | |
| 103 | |
| 104 _begin_vm_creation_time = | |
| 105 PerfDataManager::create_variable(SUN_RT, "createVmBeginTime", | |
| 106 PerfData::U_None, CHECK); | |
| 107 | |
| 108 _end_vm_creation_time = | |
| 109 PerfDataManager::create_variable(SUN_RT, "createVmEndTime", | |
| 110 PerfData::U_None, CHECK); | |
| 111 | |
| 112 _vm_init_done_time = | |
| 113 PerfDataManager::create_variable(SUN_RT, "vmInitDoneTime", | |
| 114 PerfData::U_None, CHECK); | |
| 115 | |
| 116 // Initialize optional support | |
| 117 _optional_support.isLowMemoryDetectionSupported = 1; | |
| 118 _optional_support.isCompilationTimeMonitoringSupported = 1; | |
| 119 _optional_support.isThreadContentionMonitoringSupported = 1; | |
| 120 | |
| 121 if (os::is_thread_cpu_time_supported()) { | |
| 122 _optional_support.isCurrentThreadCpuTimeSupported = 1; | |
| 123 _optional_support.isOtherThreadCpuTimeSupported = 1; | |
| 124 } else { | |
| 125 _optional_support.isCurrentThreadCpuTimeSupported = 0; | |
| 126 _optional_support.isOtherThreadCpuTimeSupported = 0; | |
| 127 } | |
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128 |
| 0 | 129 _optional_support.isBootClassPathSupported = 1; |
| 130 _optional_support.isObjectMonitorUsageSupported = 1; | |
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131 #if INCLUDE_SERVICES |
| 0 | 132 // This depends on the heap inspector |
| 133 _optional_support.isSynchronizerUsageSupported = 1; | |
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134 #endif // INCLUDE_SERVICES |
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135 _optional_support.isThreadAllocatedMemorySupported = 1; |
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136 _optional_support.isRemoteDiagnosticCommandsSupported = 1; |
| 4133 | 137 |
| 4773 | 138 // Registration of the diagnostic commands |
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139 DCmdRegistrant::register_dcmds(); |
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140 DCmdRegistrant::register_dcmds_ext(); |
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141 uint32_t full_export = DCmd_Source_Internal | DCmd_Source_AttachAPI |
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142 | DCmd_Source_MBean; |
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143 DCmdFactory::register_DCmdFactory(new DCmdFactoryImpl<NMTDCmd>(full_export, true, false)); |
| 0 | 144 } |
| 145 | |
| 146 void Management::initialize(TRAPS) { | |
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147 // Start the service thread |
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148 ServiceThread::initialize(); |
| 0 | 149 |
| 150 if (ManagementServer) { | |
| 151 ResourceMark rm(THREAD); | |
| 152 HandleMark hm(THREAD); | |
| 153 | |
| 154 // Load and initialize the sun.management.Agent class | |
| 155 // invoke startAgent method to start the management server | |
| 156 Handle loader = Handle(THREAD, SystemDictionary::java_system_loader()); | |
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157 Klass* k = SystemDictionary::resolve_or_fail(vmSymbols::sun_management_Agent(), |
| 0 | 158 loader, |
| 159 Handle(), | |
| 160 true, | |
| 161 CHECK); | |
| 162 instanceKlassHandle ik (THREAD, k); | |
| 163 | |
| 164 JavaValue result(T_VOID); | |
| 165 JavaCalls::call_static(&result, | |
| 166 ik, | |
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167 vmSymbols::startAgent_name(), |
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168 vmSymbols::void_method_signature(), |
| 0 | 169 CHECK); |
| 170 } | |
| 171 } | |
| 172 | |
| 173 void Management::get_optional_support(jmmOptionalSupport* support) { | |
| 174 memcpy(support, &_optional_support, sizeof(jmmOptionalSupport)); | |
| 175 } | |
| 176 | |
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177 Klass* Management::load_and_initialize_klass(Symbol* sh, TRAPS) { |
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178 Klass* k = SystemDictionary::resolve_or_fail(sh, true, CHECK_NULL); |
| 0 | 179 instanceKlassHandle ik (THREAD, k); |
| 180 if (ik->should_be_initialized()) { | |
| 181 ik->initialize(CHECK_NULL); | |
| 182 } | |
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183 // If these classes change to not be owned by the boot loader, they need |
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184 // to be walked to keep their class loader alive in oops_do. |
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185 assert(ik->class_loader() == NULL, "need to follow in oops_do"); |
| 0 | 186 return ik(); |
| 187 } | |
| 188 | |
| 189 void Management::record_vm_startup_time(jlong begin, jlong duration) { | |
| 190 // if the performance counter is not initialized, | |
| 191 // then vm initialization failed; simply return. | |
| 192 if (_begin_vm_creation_time == NULL) return; | |
| 193 | |
| 194 _begin_vm_creation_time->set_value(begin); | |
| 195 _end_vm_creation_time->set_value(begin + duration); | |
| 196 PerfMemory::set_accessible(true); | |
| 197 } | |
| 198 | |
| 199 jlong Management::timestamp() { | |
| 200 TimeStamp t; | |
| 201 t.update(); | |
| 202 return t.ticks() - _stamp.ticks(); | |
| 203 } | |
| 204 | |
| 205 void Management::oops_do(OopClosure* f) { | |
| 206 MemoryService::oops_do(f); | |
| 207 ThreadService::oops_do(f); | |
| 208 } | |
| 209 | |
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210 Klass* Management::java_lang_management_ThreadInfo_klass(TRAPS) { |
| 0 | 211 if (_threadInfo_klass == NULL) { |
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212 _threadInfo_klass = load_and_initialize_klass(vmSymbols::java_lang_management_ThreadInfo(), CHECK_NULL); |
| 0 | 213 } |
| 214 return _threadInfo_klass; | |
| 215 } | |
| 216 | |
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217 Klass* Management::java_lang_management_MemoryUsage_klass(TRAPS) { |
| 0 | 218 if (_memoryUsage_klass == NULL) { |
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219 _memoryUsage_klass = load_and_initialize_klass(vmSymbols::java_lang_management_MemoryUsage(), CHECK_NULL); |
| 0 | 220 } |
| 221 return _memoryUsage_klass; | |
| 222 } | |
| 223 | |
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224 Klass* Management::java_lang_management_MemoryPoolMXBean_klass(TRAPS) { |
| 0 | 225 if (_memoryPoolMXBean_klass == NULL) { |
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226 _memoryPoolMXBean_klass = load_and_initialize_klass(vmSymbols::java_lang_management_MemoryPoolMXBean(), CHECK_NULL); |
| 0 | 227 } |
| 228 return _memoryPoolMXBean_klass; | |
| 229 } | |
| 230 | |
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231 Klass* Management::java_lang_management_MemoryManagerMXBean_klass(TRAPS) { |
| 0 | 232 if (_memoryManagerMXBean_klass == NULL) { |
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233 _memoryManagerMXBean_klass = load_and_initialize_klass(vmSymbols::java_lang_management_MemoryManagerMXBean(), CHECK_NULL); |
| 0 | 234 } |
| 235 return _memoryManagerMXBean_klass; | |
| 236 } | |
| 237 | |
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238 Klass* Management::java_lang_management_GarbageCollectorMXBean_klass(TRAPS) { |
| 0 | 239 if (_garbageCollectorMXBean_klass == NULL) { |
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240 _garbageCollectorMXBean_klass = load_and_initialize_klass(vmSymbols::java_lang_management_GarbageCollectorMXBean(), CHECK_NULL); |
| 0 | 241 } |
| 242 return _garbageCollectorMXBean_klass; | |
| 243 } | |
| 244 | |
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245 Klass* Management::sun_management_Sensor_klass(TRAPS) { |
| 0 | 246 if (_sensor_klass == NULL) { |
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247 _sensor_klass = load_and_initialize_klass(vmSymbols::sun_management_Sensor(), CHECK_NULL); |
| 0 | 248 } |
| 249 return _sensor_klass; | |
| 250 } | |
| 251 | |
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252 Klass* Management::sun_management_ManagementFactory_klass(TRAPS) { |
| 0 | 253 if (_managementFactory_klass == NULL) { |
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254 _managementFactory_klass = load_and_initialize_klass(vmSymbols::sun_management_ManagementFactory(), CHECK_NULL); |
| 0 | 255 } |
| 256 return _managementFactory_klass; | |
| 257 } | |
| 258 | |
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259 Klass* Management::sun_management_GarbageCollectorImpl_klass(TRAPS) { |
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260 if (_garbageCollectorImpl_klass == NULL) { |
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261 _garbageCollectorImpl_klass = load_and_initialize_klass(vmSymbols::sun_management_GarbageCollectorImpl(), CHECK_NULL); |
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262 } |
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263 return _garbageCollectorImpl_klass; |
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264 } |
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265 |
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266 Klass* Management::com_sun_management_GcInfo_klass(TRAPS) { |
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267 if (_gcInfo_klass == NULL) { |
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268 _gcInfo_klass = load_and_initialize_klass(vmSymbols::com_sun_management_GcInfo(), CHECK_NULL); |
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269 } |
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270 return _gcInfo_klass; |
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271 } |
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272 |
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273 Klass* Management::sun_management_DiagnosticCommandImpl_klass(TRAPS) { |
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274 if (_diagnosticCommandImpl_klass == NULL) { |
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275 _diagnosticCommandImpl_klass = load_and_initialize_klass(vmSymbols::sun_management_DiagnosticCommandImpl(), CHECK_NULL); |
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276 } |
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277 return _diagnosticCommandImpl_klass; |
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278 } |
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279 |
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280 Klass* Management::sun_management_ManagementFactoryHelper_klass(TRAPS) { |
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281 if (_managementFactoryHelper_klass == NULL) { |
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282 _managementFactoryHelper_klass = load_and_initialize_klass(vmSymbols::sun_management_ManagementFactoryHelper(), CHECK_NULL); |
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283 } |
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284 return _managementFactoryHelper_klass; |
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285 } |
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286 |
| 0 | 287 static void initialize_ThreadInfo_constructor_arguments(JavaCallArguments* args, ThreadSnapshot* snapshot, TRAPS) { |
| 288 Handle snapshot_thread(THREAD, snapshot->threadObj()); | |
| 289 | |
| 290 jlong contended_time; | |
| 291 jlong waited_time; | |
| 292 if (ThreadService::is_thread_monitoring_contention()) { | |
| 293 contended_time = Management::ticks_to_ms(snapshot->contended_enter_ticks()); | |
| 294 waited_time = Management::ticks_to_ms(snapshot->monitor_wait_ticks() + snapshot->sleep_ticks()); | |
| 295 } else { | |
| 296 // set them to -1 if thread contention monitoring is disabled. | |
| 297 contended_time = max_julong; | |
| 298 waited_time = max_julong; | |
| 299 } | |
| 300 | |
| 301 int thread_status = snapshot->thread_status(); | |
| 302 assert((thread_status & JMM_THREAD_STATE_FLAG_MASK) == 0, "Flags already set in thread_status in Thread object"); | |
| 303 if (snapshot->is_ext_suspended()) { | |
| 304 thread_status |= JMM_THREAD_STATE_FLAG_SUSPENDED; | |
| 305 } | |
| 306 if (snapshot->is_in_native()) { | |
| 307 thread_status |= JMM_THREAD_STATE_FLAG_NATIVE; | |
| 308 } | |
| 309 | |
| 310 ThreadStackTrace* st = snapshot->get_stack_trace(); | |
| 311 Handle stacktrace_h; | |
| 312 if (st != NULL) { | |
| 313 stacktrace_h = st->allocate_fill_stack_trace_element_array(CHECK); | |
| 314 } else { | |
| 315 stacktrace_h = Handle(); | |
| 316 } | |
| 317 | |
| 318 args->push_oop(snapshot_thread); | |
| 319 args->push_int(thread_status); | |
| 320 args->push_oop(Handle(THREAD, snapshot->blocker_object())); | |
| 321 args->push_oop(Handle(THREAD, snapshot->blocker_object_owner())); | |
| 322 args->push_long(snapshot->contended_enter_count()); | |
| 323 args->push_long(contended_time); | |
| 324 args->push_long(snapshot->monitor_wait_count() + snapshot->sleep_count()); | |
| 325 args->push_long(waited_time); | |
| 326 args->push_oop(stacktrace_h); | |
| 327 } | |
| 328 | |
| 329 // Helper function to construct a ThreadInfo object | |
| 330 instanceOop Management::create_thread_info_instance(ThreadSnapshot* snapshot, TRAPS) { | |
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331 Klass* k = Management::java_lang_management_ThreadInfo_klass(CHECK_NULL); |
| 0 | 332 instanceKlassHandle ik (THREAD, k); |
| 333 | |
| 334 JavaValue result(T_VOID); | |
| 335 JavaCallArguments args(14); | |
| 336 | |
| 337 // First allocate a ThreadObj object and | |
| 338 // push the receiver as the first argument | |
| 339 Handle element = ik->allocate_instance_handle(CHECK_NULL); | |
| 340 args.push_oop(element); | |
| 341 | |
| 342 // initialize the arguments for the ThreadInfo constructor | |
| 343 initialize_ThreadInfo_constructor_arguments(&args, snapshot, CHECK_NULL); | |
| 344 | |
| 345 // Call ThreadInfo constructor with no locked monitors and synchronizers | |
| 346 JavaCalls::call_special(&result, | |
| 347 ik, | |
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348 vmSymbols::object_initializer_name(), |
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349 vmSymbols::java_lang_management_ThreadInfo_constructor_signature(), |
| 0 | 350 &args, |
| 351 CHECK_NULL); | |
| 352 | |
| 353 return (instanceOop) element(); | |
| 354 } | |
| 355 | |
| 356 instanceOop Management::create_thread_info_instance(ThreadSnapshot* snapshot, | |
| 357 objArrayHandle monitors_array, | |
| 358 typeArrayHandle depths_array, | |
| 359 objArrayHandle synchronizers_array, | |
| 360 TRAPS) { | |
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361 Klass* k = Management::java_lang_management_ThreadInfo_klass(CHECK_NULL); |
| 0 | 362 instanceKlassHandle ik (THREAD, k); |
| 363 | |
| 364 JavaValue result(T_VOID); | |
| 365 JavaCallArguments args(17); | |
| 366 | |
| 367 // First allocate a ThreadObj object and | |
| 368 // push the receiver as the first argument | |
| 369 Handle element = ik->allocate_instance_handle(CHECK_NULL); | |
| 370 args.push_oop(element); | |
| 371 | |
| 372 // initialize the arguments for the ThreadInfo constructor | |
| 373 initialize_ThreadInfo_constructor_arguments(&args, snapshot, CHECK_NULL); | |
| 374 | |
| 375 // push the locked monitors and synchronizers in the arguments | |
| 376 args.push_oop(monitors_array); | |
| 377 args.push_oop(depths_array); | |
| 378 args.push_oop(synchronizers_array); | |
| 379 | |
| 380 // Call ThreadInfo constructor with locked monitors and synchronizers | |
| 381 JavaCalls::call_special(&result, | |
| 382 ik, | |
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383 vmSymbols::object_initializer_name(), |
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384 vmSymbols::java_lang_management_ThreadInfo_with_locks_constructor_signature(), |
| 0 | 385 &args, |
| 386 CHECK_NULL); | |
| 387 | |
| 388 return (instanceOop) element(); | |
| 389 } | |
| 390 | |
| 391 // Helper functions | |
| 392 static JavaThread* find_java_thread_from_id(jlong thread_id) { | |
| 393 assert(Threads_lock->owned_by_self(), "Must hold Threads_lock"); | |
| 394 | |
| 395 JavaThread* java_thread = NULL; | |
| 396 // Sequential search for now. Need to do better optimization later. | |
| 397 for (JavaThread* thread = Threads::first(); thread != NULL; thread = thread->next()) { | |
| 398 oop tobj = thread->threadObj(); | |
| 399 if (!thread->is_exiting() && | |
| 400 tobj != NULL && | |
| 401 thread_id == java_lang_Thread::thread_id(tobj)) { | |
| 402 java_thread = thread; | |
| 403 break; | |
| 404 } | |
| 405 } | |
| 406 return java_thread; | |
| 407 } | |
| 408 | |
| 409 static GCMemoryManager* get_gc_memory_manager_from_jobject(jobject mgr, TRAPS) { | |
| 410 if (mgr == NULL) { | |
| 411 THROW_(vmSymbols::java_lang_NullPointerException(), NULL); | |
| 412 } | |
| 413 oop mgr_obj = JNIHandles::resolve(mgr); | |
| 414 instanceHandle h(THREAD, (instanceOop) mgr_obj); | |
| 415 | |
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416 Klass* k = Management::java_lang_management_GarbageCollectorMXBean_klass(CHECK_NULL); |
| 0 | 417 if (!h->is_a(k)) { |
| 418 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 419 "the object is not an instance of java.lang.management.GarbageCollectorMXBean class", | |
| 420 NULL); | |
| 421 } | |
| 422 | |
| 423 MemoryManager* gc = MemoryService::get_memory_manager(h); | |
| 424 if (gc == NULL || !gc->is_gc_memory_manager()) { | |
| 425 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 426 "Invalid GC memory manager", | |
| 427 NULL); | |
| 428 } | |
| 429 return (GCMemoryManager*) gc; | |
| 430 } | |
| 431 | |
| 432 static MemoryPool* get_memory_pool_from_jobject(jobject obj, TRAPS) { | |
| 433 if (obj == NULL) { | |
| 434 THROW_(vmSymbols::java_lang_NullPointerException(), NULL); | |
| 435 } | |
| 436 | |
| 437 oop pool_obj = JNIHandles::resolve(obj); | |
| 438 assert(pool_obj->is_instance(), "Should be an instanceOop"); | |
| 439 instanceHandle ph(THREAD, (instanceOop) pool_obj); | |
| 440 | |
| 441 return MemoryService::get_memory_pool(ph); | |
| 442 } | |
| 443 | |
| 444 static void validate_thread_id_array(typeArrayHandle ids_ah, TRAPS) { | |
| 445 int num_threads = ids_ah->length(); | |
| 446 | |
| 447 // Validate input thread IDs | |
| 448 int i = 0; | |
| 449 for (i = 0; i < num_threads; i++) { | |
| 450 jlong tid = ids_ah->long_at(i); | |
| 451 if (tid <= 0) { | |
| 452 // throw exception if invalid thread id. | |
| 453 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 454 "Invalid thread ID entry"); | |
| 455 } | |
| 456 } | |
| 457 } | |
| 458 | |
| 459 static void validate_thread_info_array(objArrayHandle infoArray_h, TRAPS) { | |
| 460 // check if the element of infoArray is of type ThreadInfo class | |
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461 Klass* threadinfo_klass = Management::java_lang_management_ThreadInfo_klass(CHECK); |
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462 Klass* element_klass = ObjArrayKlass::cast(infoArray_h->klass())->element_klass(); |
| 0 | 463 if (element_klass != threadinfo_klass) { |
| 464 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 465 "infoArray element type is not ThreadInfo class"); | |
| 466 } | |
| 467 } | |
| 468 | |
| 469 | |
| 470 static MemoryManager* get_memory_manager_from_jobject(jobject obj, TRAPS) { | |
| 471 if (obj == NULL) { | |
| 472 THROW_(vmSymbols::java_lang_NullPointerException(), NULL); | |
| 473 } | |
| 474 | |
| 475 oop mgr_obj = JNIHandles::resolve(obj); | |
| 476 assert(mgr_obj->is_instance(), "Should be an instanceOop"); | |
| 477 instanceHandle mh(THREAD, (instanceOop) mgr_obj); | |
| 478 | |
| 479 return MemoryService::get_memory_manager(mh); | |
| 480 } | |
| 481 | |
| 482 // Returns a version string and sets major and minor version if | |
| 483 // the input parameters are non-null. | |
| 484 JVM_LEAF(jint, jmm_GetVersion(JNIEnv *env)) | |
| 485 return JMM_VERSION; | |
| 486 JVM_END | |
| 487 | |
| 488 // Gets the list of VM monitoring and management optional supports | |
| 489 // Returns 0 if succeeded; otherwise returns non-zero. | |
| 490 JVM_LEAF(jint, jmm_GetOptionalSupport(JNIEnv *env, jmmOptionalSupport* support)) | |
| 491 if (support == NULL) { | |
| 492 return -1; | |
| 493 } | |
| 494 Management::get_optional_support(support); | |
| 495 return 0; | |
| 496 JVM_END | |
| 497 | |
| 498 // Returns a java.lang.String object containing the input arguments to the VM. | |
| 499 JVM_ENTRY(jobject, jmm_GetInputArguments(JNIEnv *env)) | |
| 500 ResourceMark rm(THREAD); | |
| 501 | |
| 502 if (Arguments::num_jvm_args() == 0 && Arguments::num_jvm_flags() == 0) { | |
| 503 return NULL; | |
| 504 } | |
| 505 | |
| 506 char** vm_flags = Arguments::jvm_flags_array(); | |
| 507 char** vm_args = Arguments::jvm_args_array(); | |
| 508 int num_flags = Arguments::num_jvm_flags(); | |
| 509 int num_args = Arguments::num_jvm_args(); | |
| 510 | |
| 511 size_t length = 1; // null terminator | |
| 512 int i; | |
| 513 for (i = 0; i < num_flags; i++) { | |
| 514 length += strlen(vm_flags[i]); | |
| 515 } | |
| 516 for (i = 0; i < num_args; i++) { | |
| 517 length += strlen(vm_args[i]); | |
| 518 } | |
| 519 // add a space between each argument | |
| 520 length += num_flags + num_args - 1; | |
| 521 | |
| 522 // Return the list of input arguments passed to the VM | |
| 523 // and preserve the order that the VM processes. | |
| 524 char* args = NEW_RESOURCE_ARRAY(char, length); | |
| 525 args[0] = '\0'; | |
| 526 // concatenate all jvm_flags | |
| 527 if (num_flags > 0) { | |
| 528 strcat(args, vm_flags[0]); | |
| 529 for (i = 1; i < num_flags; i++) { | |
| 530 strcat(args, " "); | |
| 531 strcat(args, vm_flags[i]); | |
| 532 } | |
| 533 } | |
| 534 | |
| 535 if (num_args > 0 && num_flags > 0) { | |
| 536 // append a space if args already contains one or more jvm_flags | |
| 537 strcat(args, " "); | |
| 538 } | |
| 539 | |
| 540 // concatenate all jvm_args | |
| 541 if (num_args > 0) { | |
| 542 strcat(args, vm_args[0]); | |
| 543 for (i = 1; i < num_args; i++) { | |
| 544 strcat(args, " "); | |
| 545 strcat(args, vm_args[i]); | |
| 546 } | |
| 547 } | |
| 548 | |
| 549 Handle hargs = java_lang_String::create_from_platform_dependent_str(args, CHECK_NULL); | |
| 550 return JNIHandles::make_local(env, hargs()); | |
| 551 JVM_END | |
| 552 | |
| 553 // Returns an array of java.lang.String object containing the input arguments to the VM. | |
| 554 JVM_ENTRY(jobjectArray, jmm_GetInputArgumentArray(JNIEnv *env)) | |
| 555 ResourceMark rm(THREAD); | |
| 556 | |
| 557 if (Arguments::num_jvm_args() == 0 && Arguments::num_jvm_flags() == 0) { | |
| 558 return NULL; | |
| 559 } | |
| 560 | |
| 561 char** vm_flags = Arguments::jvm_flags_array(); | |
| 562 char** vm_args = Arguments::jvm_args_array(); | |
| 563 int num_flags = Arguments::num_jvm_flags(); | |
| 564 int num_args = Arguments::num_jvm_args(); | |
| 565 | |
| 1142 | 566 instanceKlassHandle ik (THREAD, SystemDictionary::String_klass()); |
| 0 | 567 objArrayOop r = oopFactory::new_objArray(ik(), num_args + num_flags, CHECK_NULL); |
| 568 objArrayHandle result_h(THREAD, r); | |
| 569 | |
| 570 int index = 0; | |
| 571 for (int j = 0; j < num_flags; j++, index++) { | |
| 572 Handle h = java_lang_String::create_from_platform_dependent_str(vm_flags[j], CHECK_NULL); | |
| 573 result_h->obj_at_put(index, h()); | |
| 574 } | |
| 575 for (int i = 0; i < num_args; i++, index++) { | |
| 576 Handle h = java_lang_String::create_from_platform_dependent_str(vm_args[i], CHECK_NULL); | |
| 577 result_h->obj_at_put(index, h()); | |
| 578 } | |
| 579 return (jobjectArray) JNIHandles::make_local(env, result_h()); | |
| 580 JVM_END | |
| 581 | |
| 582 // Returns an array of java/lang/management/MemoryPoolMXBean object | |
| 583 // one for each memory pool if obj == null; otherwise returns | |
| 584 // an array of memory pools for a given memory manager if | |
| 585 // it is a valid memory manager. | |
| 586 JVM_ENTRY(jobjectArray, jmm_GetMemoryPools(JNIEnv* env, jobject obj)) | |
| 587 ResourceMark rm(THREAD); | |
| 588 | |
| 589 int num_memory_pools; | |
| 590 MemoryManager* mgr = NULL; | |
| 591 if (obj == NULL) { | |
| 592 num_memory_pools = MemoryService::num_memory_pools(); | |
| 593 } else { | |
| 594 mgr = get_memory_manager_from_jobject(obj, CHECK_NULL); | |
| 595 if (mgr == NULL) { | |
| 596 return NULL; | |
| 597 } | |
| 598 num_memory_pools = mgr->num_memory_pools(); | |
| 599 } | |
| 600 | |
| 601 // Allocate the resulting MemoryPoolMXBean[] object | |
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602 Klass* k = Management::java_lang_management_MemoryPoolMXBean_klass(CHECK_NULL); |
| 0 | 603 instanceKlassHandle ik (THREAD, k); |
| 604 objArrayOop r = oopFactory::new_objArray(ik(), num_memory_pools, CHECK_NULL); | |
| 605 objArrayHandle poolArray(THREAD, r); | |
| 606 | |
| 607 if (mgr == NULL) { | |
| 608 // Get all memory pools | |
| 609 for (int i = 0; i < num_memory_pools; i++) { | |
| 610 MemoryPool* pool = MemoryService::get_memory_pool(i); | |
| 611 instanceOop p = pool->get_memory_pool_instance(CHECK_NULL); | |
| 612 instanceHandle ph(THREAD, p); | |
| 613 poolArray->obj_at_put(i, ph()); | |
| 614 } | |
| 615 } else { | |
| 616 // Get memory pools managed by a given memory manager | |
| 617 for (int i = 0; i < num_memory_pools; i++) { | |
| 618 MemoryPool* pool = mgr->get_memory_pool(i); | |
| 619 instanceOop p = pool->get_memory_pool_instance(CHECK_NULL); | |
| 620 instanceHandle ph(THREAD, p); | |
| 621 poolArray->obj_at_put(i, ph()); | |
| 622 } | |
| 623 } | |
| 624 return (jobjectArray) JNIHandles::make_local(env, poolArray()); | |
| 625 JVM_END | |
| 626 | |
| 627 // Returns an array of java/lang/management/MemoryManagerMXBean object | |
| 628 // one for each memory manager if obj == null; otherwise returns | |
| 629 // an array of memory managers for a given memory pool if | |
| 630 // it is a valid memory pool. | |
| 631 JVM_ENTRY(jobjectArray, jmm_GetMemoryManagers(JNIEnv* env, jobject obj)) | |
| 632 ResourceMark rm(THREAD); | |
| 633 | |
| 634 int num_mgrs; | |
| 635 MemoryPool* pool = NULL; | |
| 636 if (obj == NULL) { | |
| 637 num_mgrs = MemoryService::num_memory_managers(); | |
| 638 } else { | |
| 639 pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 640 if (pool == NULL) { | |
| 641 return NULL; | |
| 642 } | |
| 643 num_mgrs = pool->num_memory_managers(); | |
| 644 } | |
| 645 | |
| 646 // Allocate the resulting MemoryManagerMXBean[] object | |
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647 Klass* k = Management::java_lang_management_MemoryManagerMXBean_klass(CHECK_NULL); |
| 0 | 648 instanceKlassHandle ik (THREAD, k); |
| 649 objArrayOop r = oopFactory::new_objArray(ik(), num_mgrs, CHECK_NULL); | |
| 650 objArrayHandle mgrArray(THREAD, r); | |
| 651 | |
| 652 if (pool == NULL) { | |
| 653 // Get all memory managers | |
| 654 for (int i = 0; i < num_mgrs; i++) { | |
| 655 MemoryManager* mgr = MemoryService::get_memory_manager(i); | |
| 656 instanceOop p = mgr->get_memory_manager_instance(CHECK_NULL); | |
| 657 instanceHandle ph(THREAD, p); | |
| 658 mgrArray->obj_at_put(i, ph()); | |
| 659 } | |
| 660 } else { | |
| 661 // Get memory managers for a given memory pool | |
| 662 for (int i = 0; i < num_mgrs; i++) { | |
| 663 MemoryManager* mgr = pool->get_memory_manager(i); | |
| 664 instanceOop p = mgr->get_memory_manager_instance(CHECK_NULL); | |
| 665 instanceHandle ph(THREAD, p); | |
| 666 mgrArray->obj_at_put(i, ph()); | |
| 667 } | |
| 668 } | |
| 669 return (jobjectArray) JNIHandles::make_local(env, mgrArray()); | |
| 670 JVM_END | |
| 671 | |
| 672 | |
| 673 // Returns a java/lang/management/MemoryUsage object containing the memory usage | |
| 674 // of a given memory pool. | |
| 675 JVM_ENTRY(jobject, jmm_GetMemoryPoolUsage(JNIEnv* env, jobject obj)) | |
| 676 ResourceMark rm(THREAD); | |
| 677 | |
| 678 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 679 if (pool != NULL) { | |
| 680 MemoryUsage usage = pool->get_memory_usage(); | |
| 681 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 682 return JNIHandles::make_local(env, h()); | |
| 683 } else { | |
| 684 return NULL; | |
| 685 } | |
| 686 JVM_END | |
| 687 | |
| 688 // Returns a java/lang/management/MemoryUsage object containing the memory usage | |
| 689 // of a given memory pool. | |
| 690 JVM_ENTRY(jobject, jmm_GetPeakMemoryPoolUsage(JNIEnv* env, jobject obj)) | |
| 691 ResourceMark rm(THREAD); | |
| 692 | |
| 693 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 694 if (pool != NULL) { | |
| 695 MemoryUsage usage = pool->get_peak_memory_usage(); | |
| 696 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 697 return JNIHandles::make_local(env, h()); | |
| 698 } else { | |
| 699 return NULL; | |
| 700 } | |
| 701 JVM_END | |
| 702 | |
| 703 // Returns a java/lang/management/MemoryUsage object containing the memory usage | |
| 704 // of a given memory pool after most recent GC. | |
| 705 JVM_ENTRY(jobject, jmm_GetPoolCollectionUsage(JNIEnv* env, jobject obj)) | |
| 706 ResourceMark rm(THREAD); | |
| 707 | |
| 708 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_NULL); | |
| 709 if (pool != NULL && pool->is_collected_pool()) { | |
| 710 MemoryUsage usage = pool->get_last_collection_usage(); | |
| 711 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 712 return JNIHandles::make_local(env, h()); | |
| 713 } else { | |
| 714 return NULL; | |
| 715 } | |
| 716 JVM_END | |
| 717 | |
| 718 // Sets the memory pool sensor for a threshold type | |
| 719 JVM_ENTRY(void, jmm_SetPoolSensor(JNIEnv* env, jobject obj, jmmThresholdType type, jobject sensorObj)) | |
| 720 if (obj == NULL || sensorObj == NULL) { | |
| 721 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 722 } | |
| 723 | |
|
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724 Klass* sensor_klass = Management::sun_management_Sensor_klass(CHECK); |
| 0 | 725 oop s = JNIHandles::resolve(sensorObj); |
| 726 assert(s->is_instance(), "Sensor should be an instanceOop"); | |
| 727 instanceHandle sensor_h(THREAD, (instanceOop) s); | |
| 728 if (!sensor_h->is_a(sensor_klass)) { | |
| 729 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 730 "Sensor is not an instance of sun.management.Sensor class"); | |
| 731 } | |
| 732 | |
| 733 MemoryPool* mpool = get_memory_pool_from_jobject(obj, CHECK); | |
| 734 assert(mpool != NULL, "MemoryPool should exist"); | |
| 735 | |
| 736 switch (type) { | |
| 737 case JMM_USAGE_THRESHOLD_HIGH: | |
| 738 case JMM_USAGE_THRESHOLD_LOW: | |
| 739 // have only one sensor for threshold high and low | |
| 740 mpool->set_usage_sensor_obj(sensor_h); | |
| 741 break; | |
| 742 case JMM_COLLECTION_USAGE_THRESHOLD_HIGH: | |
| 743 case JMM_COLLECTION_USAGE_THRESHOLD_LOW: | |
| 744 // have only one sensor for threshold high and low | |
| 745 mpool->set_gc_usage_sensor_obj(sensor_h); | |
| 746 break; | |
| 747 default: | |
| 748 assert(false, "Unrecognized type"); | |
| 749 } | |
| 750 | |
| 751 JVM_END | |
| 752 | |
| 753 | |
| 754 // Sets the threshold of a given memory pool. | |
| 755 // Returns the previous threshold. | |
| 756 // | |
| 757 // Input parameters: | |
| 758 // pool - the MemoryPoolMXBean object | |
| 759 // type - threshold type | |
| 760 // threshold - the new threshold (must not be negative) | |
| 761 // | |
| 762 JVM_ENTRY(jlong, jmm_SetPoolThreshold(JNIEnv* env, jobject obj, jmmThresholdType type, jlong threshold)) | |
| 763 if (threshold < 0) { | |
| 764 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 765 "Invalid threshold value", | |
| 766 -1); | |
| 767 } | |
| 768 | |
|
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|
769 if ((size_t)threshold > max_uintx) { |
|
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|
770 stringStream st; |
|
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|
771 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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|
772 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), st.as_string(), -1); |
| 0 | 773 } |
| 774 | |
| 775 MemoryPool* pool = get_memory_pool_from_jobject(obj, CHECK_(0L)); | |
| 776 assert(pool != NULL, "MemoryPool should exist"); | |
| 777 | |
| 778 jlong prev = 0; | |
| 779 switch (type) { | |
| 780 case JMM_USAGE_THRESHOLD_HIGH: | |
| 781 if (!pool->usage_threshold()->is_high_threshold_supported()) { | |
| 782 return -1; | |
| 783 } | |
| 784 prev = pool->usage_threshold()->set_high_threshold((size_t) threshold); | |
| 785 break; | |
| 786 | |
| 787 case JMM_USAGE_THRESHOLD_LOW: | |
| 788 if (!pool->usage_threshold()->is_low_threshold_supported()) { | |
| 789 return -1; | |
| 790 } | |
| 791 prev = pool->usage_threshold()->set_low_threshold((size_t) threshold); | |
| 792 break; | |
| 793 | |
| 794 case JMM_COLLECTION_USAGE_THRESHOLD_HIGH: | |
| 795 if (!pool->gc_usage_threshold()->is_high_threshold_supported()) { | |
| 796 return -1; | |
| 797 } | |
| 798 // return and the new threshold is effective for the next GC | |
| 799 return pool->gc_usage_threshold()->set_high_threshold((size_t) threshold); | |
| 800 | |
| 801 case JMM_COLLECTION_USAGE_THRESHOLD_LOW: | |
| 802 if (!pool->gc_usage_threshold()->is_low_threshold_supported()) { | |
| 803 return -1; | |
| 804 } | |
| 805 // return and the new threshold is effective for the next GC | |
| 806 return pool->gc_usage_threshold()->set_low_threshold((size_t) threshold); | |
| 807 | |
| 808 default: | |
| 809 assert(false, "Unrecognized type"); | |
| 810 return -1; | |
| 811 } | |
| 812 | |
| 813 // When the threshold is changed, reevaluate if the low memory | |
| 814 // detection is enabled. | |
| 815 if (prev != threshold) { | |
| 816 LowMemoryDetector::recompute_enabled_for_collected_pools(); | |
| 817 LowMemoryDetector::detect_low_memory(pool); | |
| 818 } | |
| 819 return prev; | |
| 820 JVM_END | |
| 821 | |
|
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822 // Gets an array containing the amount of memory allocated on the Java |
|
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823 // heap for a set of threads (in bytes). Each element of the array is |
|
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824 // the amount of memory allocated for the thread ID specified in the |
|
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825 // corresponding entry in the given array of thread IDs; or -1 if the |
|
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826 // thread does not exist or has terminated. |
|
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|
827 JVM_ENTRY(void, jmm_GetThreadAllocatedMemory(JNIEnv *env, jlongArray ids, |
|
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|
828 jlongArray sizeArray)) |
|
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829 // Check if threads is null |
|
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830 if (ids == NULL || sizeArray == NULL) { |
|
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|
831 THROW(vmSymbols::java_lang_NullPointerException()); |
|
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|
832 } |
|
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|
833 |
|
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|
834 ResourceMark rm(THREAD); |
|
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|
835 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(ids)); |
|
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|
836 typeArrayHandle ids_ah(THREAD, ta); |
|
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|
837 |
|
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|
838 typeArrayOop sa = typeArrayOop(JNIHandles::resolve_non_null(sizeArray)); |
|
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|
839 typeArrayHandle sizeArray_h(THREAD, sa); |
|
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|
840 |
|
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|
841 // validate the thread id array |
|
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|
842 validate_thread_id_array(ids_ah, CHECK); |
|
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|
843 |
|
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|
844 // sizeArray must be of the same length as the given array of thread IDs |
|
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|
845 int num_threads = ids_ah->length(); |
|
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846 if (num_threads != sizeArray_h->length()) { |
|
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|
847 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), |
|
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|
848 "The length of the given long array does not match the length of " |
|
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|
849 "the given array of thread IDs"); |
|
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|
850 } |
|
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|
851 |
|
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|
852 MutexLockerEx ml(Threads_lock); |
|
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853 for (int i = 0; i < num_threads; i++) { |
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|
854 JavaThread* java_thread = find_java_thread_from_id(ids_ah->long_at(i)); |
|
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855 if (java_thread != NULL) { |
|
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856 sizeArray_h->long_at_put(i, java_thread->cooked_allocated_bytes()); |
|
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|
857 } |
|
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|
858 } |
|
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|
859 JVM_END |
|
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|
860 |
| 0 | 861 // Returns a java/lang/management/MemoryUsage object representing |
| 862 // the memory usage for the heap or non-heap memory. | |
| 863 JVM_ENTRY(jobject, jmm_GetMemoryUsage(JNIEnv* env, jboolean heap)) | |
| 864 ResourceMark rm(THREAD); | |
| 865 | |
| 866 // Calculate the memory usage | |
| 867 size_t total_init = 0; | |
| 868 size_t total_used = 0; | |
| 869 size_t total_committed = 0; | |
| 870 size_t total_max = 0; | |
| 871 bool has_undefined_init_size = false; | |
| 872 bool has_undefined_max_size = false; | |
| 873 | |
| 874 for (int i = 0; i < MemoryService::num_memory_pools(); i++) { | |
| 875 MemoryPool* pool = MemoryService::get_memory_pool(i); | |
| 876 if ((heap && pool->is_heap()) || (!heap && pool->is_non_heap())) { | |
| 877 MemoryUsage u = pool->get_memory_usage(); | |
| 878 total_used += u.used(); | |
| 879 total_committed += u.committed(); | |
| 880 | |
| 881 if (u.init_size() == (size_t)-1) { | |
| 882 has_undefined_init_size = true; | |
| 883 } | |
| 884 if (!has_undefined_init_size) { | |
| 885 total_init += u.init_size(); | |
| 886 } | |
| 887 | |
| 888 if (u.max_size() == (size_t)-1) { | |
| 889 has_undefined_max_size = true; | |
| 890 } | |
| 891 if (!has_undefined_max_size) { | |
| 892 total_max += u.max_size(); | |
| 893 } | |
| 894 } | |
| 895 } | |
| 896 | |
|
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897 // if any one of the memory pool has undefined init_size or max_size, |
|
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898 // set it to -1 |
|
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899 if (has_undefined_init_size) { |
|
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900 total_init = (size_t)-1; |
|
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|
901 } |
|
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902 if (has_undefined_max_size) { |
|
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|
903 total_max = (size_t)-1; |
|
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|
904 } |
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905 |
| 1064 | 906 MemoryUsage usage((heap ? InitialHeapSize : total_init), |
| 0 | 907 total_used, |
| 908 total_committed, | |
| 909 (heap ? Universe::heap()->max_capacity() : total_max)); | |
| 910 | |
| 911 Handle obj = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); | |
| 912 return JNIHandles::make_local(env, obj()); | |
| 913 JVM_END | |
| 914 | |
| 915 // Returns the boolean value of a given attribute. | |
| 916 JVM_LEAF(jboolean, jmm_GetBoolAttribute(JNIEnv *env, jmmBoolAttribute att)) | |
| 917 switch (att) { | |
| 918 case JMM_VERBOSE_GC: | |
| 919 return MemoryService::get_verbose(); | |
| 920 case JMM_VERBOSE_CLASS: | |
| 921 return ClassLoadingService::get_verbose(); | |
| 922 case JMM_THREAD_CONTENTION_MONITORING: | |
| 923 return ThreadService::is_thread_monitoring_contention(); | |
| 924 case JMM_THREAD_CPU_TIME: | |
| 925 return ThreadService::is_thread_cpu_time_enabled(); | |
|
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926 case JMM_THREAD_ALLOCATED_MEMORY: |
|
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diff
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|
927 return ThreadService::is_thread_allocated_memory_enabled(); |
| 0 | 928 default: |
| 929 assert(0, "Unrecognized attribute"); | |
| 930 return false; | |
| 931 } | |
| 932 JVM_END | |
| 933 | |
| 934 // Sets the given boolean attribute and returns the previous value. | |
| 935 JVM_ENTRY(jboolean, jmm_SetBoolAttribute(JNIEnv *env, jmmBoolAttribute att, jboolean flag)) | |
| 936 switch (att) { | |
| 937 case JMM_VERBOSE_GC: | |
| 938 return MemoryService::set_verbose(flag != 0); | |
| 939 case JMM_VERBOSE_CLASS: | |
| 940 return ClassLoadingService::set_verbose(flag != 0); | |
| 941 case JMM_THREAD_CONTENTION_MONITORING: | |
| 942 return ThreadService::set_thread_monitoring_contention(flag != 0); | |
| 943 case JMM_THREAD_CPU_TIME: | |
| 944 return ThreadService::set_thread_cpu_time_enabled(flag != 0); | |
|
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945 case JMM_THREAD_ALLOCATED_MEMORY: |
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946 return ThreadService::set_thread_allocated_memory_enabled(flag != 0); |
| 0 | 947 default: |
| 948 assert(0, "Unrecognized attribute"); | |
| 949 return false; | |
| 950 } | |
| 951 JVM_END | |
| 952 | |
| 953 | |
| 954 static jlong get_gc_attribute(GCMemoryManager* mgr, jmmLongAttribute att) { | |
| 955 switch (att) { | |
| 956 case JMM_GC_TIME_MS: | |
| 957 return mgr->gc_time_ms(); | |
| 958 | |
| 959 case JMM_GC_COUNT: | |
| 960 return mgr->gc_count(); | |
| 961 | |
| 962 case JMM_GC_EXT_ATTRIBUTE_INFO_SIZE: | |
| 963 // current implementation only has 1 ext attribute | |
| 964 return 1; | |
| 965 | |
| 966 default: | |
| 967 assert(0, "Unrecognized GC attribute"); | |
| 968 return -1; | |
| 969 } | |
| 970 } | |
| 971 | |
| 972 class VmThreadCountClosure: public ThreadClosure { | |
| 973 private: | |
| 974 int _count; | |
| 975 public: | |
| 976 VmThreadCountClosure() : _count(0) {}; | |
| 977 void do_thread(Thread* thread); | |
| 978 int count() { return _count; } | |
| 979 }; | |
| 980 | |
| 981 void VmThreadCountClosure::do_thread(Thread* thread) { | |
| 982 // exclude externally visible JavaThreads | |
| 983 if (thread->is_Java_thread() && !thread->is_hidden_from_external_view()) { | |
| 984 return; | |
| 985 } | |
| 986 | |
| 987 _count++; | |
| 988 } | |
| 989 | |
| 990 static jint get_vm_thread_count() { | |
| 991 VmThreadCountClosure vmtcc; | |
| 992 { | |
| 993 MutexLockerEx ml(Threads_lock); | |
| 994 Threads::threads_do(&vmtcc); | |
| 995 } | |
| 996 | |
| 997 return vmtcc.count(); | |
| 998 } | |
| 999 | |
| 1000 static jint get_num_flags() { | |
| 1001 // last flag entry is always NULL, so subtract 1 | |
| 1002 int nFlags = (int) Flag::numFlags - 1; | |
| 1003 int count = 0; | |
| 1004 for (int i = 0; i < nFlags; i++) { | |
| 1005 Flag* flag = &Flag::flags[i]; | |
| 350 | 1006 // Exclude the locked (diagnostic, experimental) flags |
| 0 | 1007 if (flag->is_unlocked() || flag->is_unlocker()) { |
| 1008 count++; | |
| 1009 } | |
| 1010 } | |
| 1011 return count; | |
| 1012 } | |
| 1013 | |
| 1014 static jlong get_long_attribute(jmmLongAttribute att) { | |
| 1015 switch (att) { | |
| 1016 case JMM_CLASS_LOADED_COUNT: | |
| 1017 return ClassLoadingService::loaded_class_count(); | |
| 1018 | |
| 1019 case JMM_CLASS_UNLOADED_COUNT: | |
| 1020 return ClassLoadingService::unloaded_class_count(); | |
| 1021 | |
| 1022 case JMM_THREAD_TOTAL_COUNT: | |
| 1023 return ThreadService::get_total_thread_count(); | |
| 1024 | |
| 1025 case JMM_THREAD_LIVE_COUNT: | |
| 1026 return ThreadService::get_live_thread_count(); | |
| 1027 | |
| 1028 case JMM_THREAD_PEAK_COUNT: | |
| 1029 return ThreadService::get_peak_thread_count(); | |
| 1030 | |
| 1031 case JMM_THREAD_DAEMON_COUNT: | |
| 1032 return ThreadService::get_daemon_thread_count(); | |
| 1033 | |
| 1034 case JMM_JVM_INIT_DONE_TIME_MS: | |
| 1035 return Management::vm_init_done_time(); | |
| 1036 | |
|
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1037 case JMM_JVM_UPTIME_MS: |
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1038 return Management::ticks_to_ms(os::elapsed_counter()); |
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1039 |
| 0 | 1040 case JMM_COMPILE_TOTAL_TIME_MS: |
| 1041 return Management::ticks_to_ms(CompileBroker::total_compilation_ticks()); | |
| 1042 | |
| 1043 case JMM_OS_PROCESS_ID: | |
| 1044 return os::current_process_id(); | |
| 1045 | |
| 1046 // Hotspot-specific counters | |
| 1047 case JMM_CLASS_LOADED_BYTES: | |
| 1048 return ClassLoadingService::loaded_class_bytes(); | |
| 1049 | |
| 1050 case JMM_CLASS_UNLOADED_BYTES: | |
| 1051 return ClassLoadingService::unloaded_class_bytes(); | |
| 1052 | |
| 1053 case JMM_SHARED_CLASS_LOADED_COUNT: | |
| 1054 return ClassLoadingService::loaded_shared_class_count(); | |
| 1055 | |
| 1056 case JMM_SHARED_CLASS_UNLOADED_COUNT: | |
| 1057 return ClassLoadingService::unloaded_shared_class_count(); | |
| 1058 | |
| 1059 | |
| 1060 case JMM_SHARED_CLASS_LOADED_BYTES: | |
| 1061 return ClassLoadingService::loaded_shared_class_bytes(); | |
| 1062 | |
| 1063 case JMM_SHARED_CLASS_UNLOADED_BYTES: | |
| 1064 return ClassLoadingService::unloaded_shared_class_bytes(); | |
| 1065 | |
| 1066 case JMM_TOTAL_CLASSLOAD_TIME_MS: | |
| 1067 return ClassLoader::classloader_time_ms(); | |
| 1068 | |
| 1069 case JMM_VM_GLOBAL_COUNT: | |
| 1070 return get_num_flags(); | |
| 1071 | |
| 1072 case JMM_SAFEPOINT_COUNT: | |
| 1073 return RuntimeService::safepoint_count(); | |
| 1074 | |
| 1075 case JMM_TOTAL_SAFEPOINTSYNC_TIME_MS: | |
| 1076 return RuntimeService::safepoint_sync_time_ms(); | |
| 1077 | |
| 1078 case JMM_TOTAL_STOPPED_TIME_MS: | |
| 1079 return RuntimeService::safepoint_time_ms(); | |
| 1080 | |
| 1081 case JMM_TOTAL_APP_TIME_MS: | |
| 1082 return RuntimeService::application_time_ms(); | |
| 1083 | |
| 1084 case JMM_VM_THREAD_COUNT: | |
| 1085 return get_vm_thread_count(); | |
| 1086 | |
| 1087 case JMM_CLASS_INIT_TOTAL_COUNT: | |
| 1088 return ClassLoader::class_init_count(); | |
| 1089 | |
| 1090 case JMM_CLASS_INIT_TOTAL_TIME_MS: | |
| 1091 return ClassLoader::class_init_time_ms(); | |
| 1092 | |
| 1093 case JMM_CLASS_VERIFY_TOTAL_TIME_MS: | |
| 1094 return ClassLoader::class_verify_time_ms(); | |
| 1095 | |
| 1096 case JMM_METHOD_DATA_SIZE_BYTES: | |
| 1097 return ClassLoadingService::class_method_data_size(); | |
| 1098 | |
| 1099 case JMM_OS_MEM_TOTAL_PHYSICAL_BYTES: | |
| 1100 return os::physical_memory(); | |
| 1101 | |
| 1102 default: | |
| 1103 return -1; | |
| 1104 } | |
| 1105 } | |
| 1106 | |
| 1107 | |
| 1108 // Returns the long value of a given attribute. | |
| 1109 JVM_ENTRY(jlong, jmm_GetLongAttribute(JNIEnv *env, jobject obj, jmmLongAttribute att)) | |
| 1110 if (obj == NULL) { | |
| 1111 return get_long_attribute(att); | |
| 1112 } else { | |
| 1113 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK_(0L)); | |
| 1114 if (mgr != NULL) { | |
| 1115 return get_gc_attribute(mgr, att); | |
| 1116 } | |
| 1117 } | |
| 1118 return -1; | |
| 1119 JVM_END | |
| 1120 | |
| 1121 // Gets the value of all attributes specified in the given array | |
| 1122 // and sets the value in the result array. | |
| 1123 // Returns the number of attributes found. | |
| 1124 JVM_ENTRY(jint, jmm_GetLongAttributes(JNIEnv *env, | |
| 1125 jobject obj, | |
| 1126 jmmLongAttribute* atts, | |
| 1127 jint count, | |
| 1128 jlong* result)) | |
| 1129 | |
| 1130 int num_atts = 0; | |
| 1131 if (obj == NULL) { | |
| 1132 for (int i = 0; i < count; i++) { | |
| 1133 result[i] = get_long_attribute(atts[i]); | |
| 1134 if (result[i] != -1) { | |
| 1135 num_atts++; | |
| 1136 } | |
| 1137 } | |
| 1138 } else { | |
| 1139 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK_0); | |
| 1140 for (int i = 0; i < count; i++) { | |
| 1141 result[i] = get_gc_attribute(mgr, atts[i]); | |
| 1142 if (result[i] != -1) { | |
| 1143 num_atts++; | |
| 1144 } | |
| 1145 } | |
| 1146 } | |
| 1147 return num_atts; | |
| 1148 JVM_END | |
| 1149 | |
| 1150 // Helper function to do thread dump for a specific list of threads | |
| 1151 static void do_thread_dump(ThreadDumpResult* dump_result, | |
| 1152 typeArrayHandle ids_ah, // array of thread ID (long[]) | |
| 1153 int num_threads, | |
| 1154 int max_depth, | |
| 1155 bool with_locked_monitors, | |
| 1156 bool with_locked_synchronizers, | |
| 1157 TRAPS) { | |
| 1158 | |
| 1159 // First get an array of threadObj handles. | |
| 1160 // A JavaThread may terminate before we get the stack trace. | |
| 1161 GrowableArray<instanceHandle>* thread_handle_array = new GrowableArray<instanceHandle>(num_threads); | |
| 1162 { | |
| 1163 MutexLockerEx ml(Threads_lock); | |
| 1164 for (int i = 0; i < num_threads; i++) { | |
| 1165 jlong tid = ids_ah->long_at(i); | |
| 1166 JavaThread* jt = find_java_thread_from_id(tid); | |
| 1167 oop thread_obj = (jt != NULL ? jt->threadObj() : (oop)NULL); | |
| 1168 instanceHandle threadObj_h(THREAD, (instanceOop) thread_obj); | |
| 1169 thread_handle_array->append(threadObj_h); | |
| 1170 } | |
| 1171 } | |
| 1172 | |
| 1173 // Obtain thread dumps and thread snapshot information | |
| 1174 VM_ThreadDump op(dump_result, | |
| 1175 thread_handle_array, | |
| 1176 num_threads, | |
| 1177 max_depth, /* stack depth */ | |
| 1178 with_locked_monitors, | |
| 1179 with_locked_synchronizers); | |
| 1180 VMThread::execute(&op); | |
| 1181 } | |
| 1182 | |
| 1183 // Gets an array of ThreadInfo objects. Each element is the ThreadInfo | |
| 1184 // for the thread ID specified in the corresponding entry in | |
| 1185 // the given array of thread IDs; or NULL if the thread does not exist | |
| 1186 // or has terminated. | |
| 1187 // | |
| 1188 // Input parameters: | |
| 1189 // ids - array of thread IDs | |
| 1190 // maxDepth - the maximum depth of stack traces to be dumped: | |
| 1191 // maxDepth == -1 requests to dump entire stack trace. | |
| 1192 // maxDepth == 0 requests no stack trace. | |
| 1193 // infoArray - array of ThreadInfo objects | |
| 1194 // | |
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1195 // QQQ - Why does this method return a value instead of void? |
| 0 | 1196 JVM_ENTRY(jint, jmm_GetThreadInfo(JNIEnv *env, jlongArray ids, jint maxDepth, jobjectArray infoArray)) |
| 1197 // Check if threads is null | |
| 1198 if (ids == NULL || infoArray == NULL) { | |
| 1199 THROW_(vmSymbols::java_lang_NullPointerException(), -1); | |
| 1200 } | |
| 1201 | |
| 1202 if (maxDepth < -1) { | |
| 1203 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1204 "Invalid maxDepth", -1); | |
| 1205 } | |
| 1206 | |
| 1207 ResourceMark rm(THREAD); | |
| 1208 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(ids)); | |
| 1209 typeArrayHandle ids_ah(THREAD, ta); | |
| 1210 | |
| 1211 oop infoArray_obj = JNIHandles::resolve_non_null(infoArray); | |
| 1212 objArrayOop oa = objArrayOop(infoArray_obj); | |
| 1213 objArrayHandle infoArray_h(THREAD, oa); | |
| 1214 | |
| 1215 // validate the thread id array | |
| 1216 validate_thread_id_array(ids_ah, CHECK_0); | |
| 1217 | |
| 1218 // validate the ThreadInfo[] parameters | |
| 1219 validate_thread_info_array(infoArray_h, CHECK_0); | |
| 1220 | |
| 1221 // infoArray must be of the same length as the given array of thread IDs | |
| 1222 int num_threads = ids_ah->length(); | |
| 1223 if (num_threads != infoArray_h->length()) { | |
| 1224 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1225 "The length of the given ThreadInfo array does not match the length of the given array of thread IDs", -1); | |
| 1226 } | |
| 1227 | |
| 1228 if (JDK_Version::is_gte_jdk16x_version()) { | |
| 1229 // make sure the AbstractOwnableSynchronizer klass is loaded before taking thread snapshots | |
| 1230 java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(CHECK_0); | |
| 1231 } | |
| 1232 | |
| 1233 // Must use ThreadDumpResult to store the ThreadSnapshot. | |
| 1234 // GC may occur after the thread snapshots are taken but before | |
| 1235 // this function returns. The threadObj and other oops kept | |
| 1236 // in the ThreadSnapshot are marked and adjusted during GC. | |
| 1237 ThreadDumpResult dump_result(num_threads); | |
| 1238 | |
| 1239 if (maxDepth == 0) { | |
| 1240 // no stack trace dumped - do not need to stop the world | |
| 1241 { | |
| 1242 MutexLockerEx ml(Threads_lock); | |
| 1243 for (int i = 0; i < num_threads; i++) { | |
| 1244 jlong tid = ids_ah->long_at(i); | |
| 1245 JavaThread* jt = find_java_thread_from_id(tid); | |
| 1246 ThreadSnapshot* ts; | |
| 1247 if (jt == NULL) { | |
| 1248 // if the thread does not exist or now it is terminated, | |
| 1249 // create dummy snapshot | |
| 1250 ts = new ThreadSnapshot(); | |
| 1251 } else { | |
| 1252 ts = new ThreadSnapshot(jt); | |
| 1253 } | |
| 1254 dump_result.add_thread_snapshot(ts); | |
| 1255 } | |
| 1256 } | |
| 1257 } else { | |
| 1258 // obtain thread dump with the specific list of threads with stack trace | |
| 1259 do_thread_dump(&dump_result, | |
| 1260 ids_ah, | |
| 1261 num_threads, | |
| 1262 maxDepth, | |
| 1263 false, /* no locked monitor */ | |
| 1264 false, /* no locked synchronizers */ | |
| 1265 CHECK_0); | |
| 1266 } | |
| 1267 | |
| 1268 int num_snapshots = dump_result.num_snapshots(); | |
| 1269 assert(num_snapshots == num_threads, "Must match the number of thread snapshots"); | |
| 1270 int index = 0; | |
| 1271 for (ThreadSnapshot* ts = dump_result.snapshots(); ts != NULL; index++, ts = ts->next()) { | |
| 1272 // For each thread, create an java/lang/management/ThreadInfo object | |
| 1273 // and fill with the thread information | |
| 1274 | |
| 1275 if (ts->threadObj() == NULL) { | |
| 1276 // if the thread does not exist or now it is terminated, set threadinfo to NULL | |
| 1277 infoArray_h->obj_at_put(index, NULL); | |
| 1278 continue; | |
| 1279 } | |
| 1280 | |
| 1281 // Create java.lang.management.ThreadInfo object | |
| 1282 instanceOop info_obj = Management::create_thread_info_instance(ts, CHECK_0); | |
| 1283 infoArray_h->obj_at_put(index, info_obj); | |
| 1284 } | |
| 1285 return 0; | |
| 1286 JVM_END | |
| 1287 | |
| 1288 // Dump thread info for the specified threads. | |
| 1289 // It returns an array of ThreadInfo objects. Each element is the ThreadInfo | |
| 1290 // for the thread ID specified in the corresponding entry in | |
| 1291 // the given array of thread IDs; or NULL if the thread does not exist | |
| 1292 // or has terminated. | |
| 1293 // | |
| 1294 // Input parameter: | |
| 1295 // ids - array of thread IDs; NULL indicates all live threads | |
| 1296 // locked_monitors - if true, dump locked object monitors | |
| 1297 // locked_synchronizers - if true, dump locked JSR-166 synchronizers | |
| 1298 // | |
| 1299 JVM_ENTRY(jobjectArray, jmm_DumpThreads(JNIEnv *env, jlongArray thread_ids, jboolean locked_monitors, jboolean locked_synchronizers)) | |
| 1300 ResourceMark rm(THREAD); | |
| 1301 | |
| 1302 if (JDK_Version::is_gte_jdk16x_version()) { | |
| 1303 // make sure the AbstractOwnableSynchronizer klass is loaded before taking thread snapshots | |
| 1304 java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(CHECK_NULL); | |
| 1305 } | |
| 1306 | |
| 1307 typeArrayOop ta = typeArrayOop(JNIHandles::resolve(thread_ids)); | |
| 1308 int num_threads = (ta != NULL ? ta->length() : 0); | |
| 1309 typeArrayHandle ids_ah(THREAD, ta); | |
| 1310 | |
| 1311 ThreadDumpResult dump_result(num_threads); // can safepoint | |
| 1312 | |
| 1313 if (ids_ah() != NULL) { | |
| 1314 | |
| 1315 // validate the thread id array | |
| 1316 validate_thread_id_array(ids_ah, CHECK_NULL); | |
| 1317 | |
| 1318 // obtain thread dump of a specific list of threads | |
| 1319 do_thread_dump(&dump_result, | |
| 1320 ids_ah, | |
| 1321 num_threads, | |
| 1322 -1, /* entire stack */ | |
| 1323 (locked_monitors ? true : false), /* with locked monitors */ | |
| 1324 (locked_synchronizers ? true : false), /* with locked synchronizers */ | |
| 1325 CHECK_NULL); | |
| 1326 } else { | |
| 1327 // obtain thread dump of all threads | |
| 1328 VM_ThreadDump op(&dump_result, | |
| 1329 -1, /* entire stack */ | |
| 1330 (locked_monitors ? true : false), /* with locked monitors */ | |
| 1331 (locked_synchronizers ? true : false) /* with locked synchronizers */); | |
| 1332 VMThread::execute(&op); | |
| 1333 } | |
| 1334 | |
| 1335 int num_snapshots = dump_result.num_snapshots(); | |
| 1336 | |
| 1337 // create the result ThreadInfo[] object | |
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1338 Klass* k = Management::java_lang_management_ThreadInfo_klass(CHECK_NULL); |
| 0 | 1339 instanceKlassHandle ik (THREAD, k); |
| 1340 objArrayOop r = oopFactory::new_objArray(ik(), num_snapshots, CHECK_NULL); | |
| 1341 objArrayHandle result_h(THREAD, r); | |
| 1342 | |
| 1343 int index = 0; | |
| 1344 for (ThreadSnapshot* ts = dump_result.snapshots(); ts != NULL; ts = ts->next(), index++) { | |
| 1345 if (ts->threadObj() == NULL) { | |
| 1346 // if the thread does not exist or now it is terminated, set threadinfo to NULL | |
| 1347 result_h->obj_at_put(index, NULL); | |
| 1348 continue; | |
| 1349 } | |
| 1350 | |
| 1351 ThreadStackTrace* stacktrace = ts->get_stack_trace(); | |
| 1352 assert(stacktrace != NULL, "Must have a stack trace dumped"); | |
| 1353 | |
| 1354 // Create Object[] filled with locked monitors | |
| 1355 // Create int[] filled with the stack depth where a monitor was locked | |
| 1356 int num_frames = stacktrace->get_stack_depth(); | |
| 1357 int num_locked_monitors = stacktrace->num_jni_locked_monitors(); | |
| 1358 | |
| 1359 // Count the total number of locked monitors | |
| 1360 for (int i = 0; i < num_frames; i++) { | |
| 1361 StackFrameInfo* frame = stacktrace->stack_frame_at(i); | |
| 1362 num_locked_monitors += frame->num_locked_monitors(); | |
| 1363 } | |
| 1364 | |
| 1365 objArrayHandle monitors_array; | |
| 1366 typeArrayHandle depths_array; | |
| 1367 objArrayHandle synchronizers_array; | |
| 1368 | |
| 1369 if (locked_monitors) { | |
| 1370 // Constructs Object[] and int[] to contain the object monitor and the stack depth | |
| 1371 // where the thread locked it | |
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1372 objArrayOop array = oopFactory::new_objArray(SystemDictionary::Object_klass(), num_locked_monitors, CHECK_NULL); |
| 0 | 1373 objArrayHandle mh(THREAD, array); |
| 1374 monitors_array = mh; | |
| 1375 | |
| 1376 typeArrayOop tarray = oopFactory::new_typeArray(T_INT, num_locked_monitors, CHECK_NULL); | |
| 1377 typeArrayHandle dh(THREAD, tarray); | |
| 1378 depths_array = dh; | |
| 1379 | |
| 1380 int count = 0; | |
| 1381 int j = 0; | |
| 1382 for (int depth = 0; depth < num_frames; depth++) { | |
| 1383 StackFrameInfo* frame = stacktrace->stack_frame_at(depth); | |
| 1384 int len = frame->num_locked_monitors(); | |
| 1385 GrowableArray<oop>* locked_monitors = frame->locked_monitors(); | |
| 1386 for (j = 0; j < len; j++) { | |
| 1387 oop monitor = locked_monitors->at(j); | |
| 1388 assert(monitor != NULL && monitor->is_instance(), "must be a Java object"); | |
| 1389 monitors_array->obj_at_put(count, monitor); | |
| 1390 depths_array->int_at_put(count, depth); | |
| 1391 count++; | |
| 1392 } | |
| 1393 } | |
| 1394 | |
| 1395 GrowableArray<oop>* jni_locked_monitors = stacktrace->jni_locked_monitors(); | |
| 1396 for (j = 0; j < jni_locked_monitors->length(); j++) { | |
| 1397 oop object = jni_locked_monitors->at(j); | |
| 1398 assert(object != NULL && object->is_instance(), "must be a Java object"); | |
| 1399 monitors_array->obj_at_put(count, object); | |
| 1400 // Monitor locked via JNI MonitorEnter call doesn't have stack depth info | |
| 1401 depths_array->int_at_put(count, -1); | |
| 1402 count++; | |
| 1403 } | |
| 1404 assert(count == num_locked_monitors, "number of locked monitors doesn't match"); | |
| 1405 } | |
| 1406 | |
| 1407 if (locked_synchronizers) { | |
| 1408 // Create Object[] filled with locked JSR-166 synchronizers | |
| 1409 assert(ts->threadObj() != NULL, "Must be a valid JavaThread"); | |
| 1410 ThreadConcurrentLocks* tcl = ts->get_concurrent_locks(); | |
| 1411 GrowableArray<instanceOop>* locks = (tcl != NULL ? tcl->owned_locks() : NULL); | |
| 1412 int num_locked_synchronizers = (locks != NULL ? locks->length() : 0); | |
| 1413 | |
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1414 objArrayOop array = oopFactory::new_objArray(SystemDictionary::Object_klass(), num_locked_synchronizers, CHECK_NULL); |
| 0 | 1415 objArrayHandle sh(THREAD, array); |
| 1416 synchronizers_array = sh; | |
| 1417 | |
| 1418 for (int k = 0; k < num_locked_synchronizers; k++) { | |
| 1419 synchronizers_array->obj_at_put(k, locks->at(k)); | |
| 1420 } | |
| 1421 } | |
| 1422 | |
| 1423 // Create java.lang.management.ThreadInfo object | |
| 1424 instanceOop info_obj = Management::create_thread_info_instance(ts, | |
| 1425 monitors_array, | |
| 1426 depths_array, | |
| 1427 synchronizers_array, | |
| 1428 CHECK_NULL); | |
| 1429 result_h->obj_at_put(index, info_obj); | |
| 1430 } | |
| 1431 | |
| 1432 return (jobjectArray) JNIHandles::make_local(env, result_h()); | |
| 1433 JVM_END | |
| 1434 | |
| 1435 // Returns an array of Class objects. | |
| 1436 JVM_ENTRY(jobjectArray, jmm_GetLoadedClasses(JNIEnv *env)) | |
| 1437 ResourceMark rm(THREAD); | |
| 1438 | |
| 1439 LoadedClassesEnumerator lce(THREAD); // Pass current Thread as parameter | |
| 1440 | |
| 1441 int num_classes = lce.num_loaded_classes(); | |
| 1142 | 1442 objArrayOop r = oopFactory::new_objArray(SystemDictionary::Class_klass(), num_classes, CHECK_0); |
| 0 | 1443 objArrayHandle classes_ah(THREAD, r); |
| 1444 | |
| 1445 for (int i = 0; i < num_classes; i++) { | |
| 1446 KlassHandle kh = lce.get_klass(i); | |
| 6983 | 1447 oop mirror = kh()->java_mirror(); |
| 0 | 1448 classes_ah->obj_at_put(i, mirror); |
| 1449 } | |
| 1450 | |
| 1451 return (jobjectArray) JNIHandles::make_local(env, classes_ah()); | |
| 1452 JVM_END | |
| 1453 | |
| 1454 // Reset statistic. Return true if the requested statistic is reset. | |
| 1455 // Otherwise, return false. | |
| 1456 // | |
| 1457 // Input parameters: | |
| 1458 // obj - specify which instance the statistic associated with to be reset | |
| 1459 // For PEAK_POOL_USAGE stat, obj is required to be a memory pool object. | |
| 1460 // For THREAD_CONTENTION_COUNT and TIME stat, obj is required to be a thread ID. | |
| 1461 // type - the type of statistic to be reset | |
| 1462 // | |
| 1463 JVM_ENTRY(jboolean, jmm_ResetStatistic(JNIEnv *env, jvalue obj, jmmStatisticType type)) | |
| 1464 ResourceMark rm(THREAD); | |
| 1465 | |
| 1466 switch (type) { | |
| 1467 case JMM_STAT_PEAK_THREAD_COUNT: | |
| 1468 ThreadService::reset_peak_thread_count(); | |
| 1469 return true; | |
| 1470 | |
| 1471 case JMM_STAT_THREAD_CONTENTION_COUNT: | |
| 1472 case JMM_STAT_THREAD_CONTENTION_TIME: { | |
| 1473 jlong tid = obj.j; | |
| 1474 if (tid < 0) { | |
| 1475 THROW_(vmSymbols::java_lang_IllegalArgumentException(), JNI_FALSE); | |
| 1476 } | |
| 1477 | |
| 1478 // Look for the JavaThread of this given tid | |
| 1479 MutexLockerEx ml(Threads_lock); | |
| 1480 if (tid == 0) { | |
| 1481 // reset contention statistics for all threads if tid == 0 | |
| 1482 for (JavaThread* java_thread = Threads::first(); java_thread != NULL; java_thread = java_thread->next()) { | |
| 1483 if (type == JMM_STAT_THREAD_CONTENTION_COUNT) { | |
| 1484 ThreadService::reset_contention_count_stat(java_thread); | |
| 1485 } else { | |
| 1486 ThreadService::reset_contention_time_stat(java_thread); | |
| 1487 } | |
| 1488 } | |
| 1489 } else { | |
| 1490 // reset contention statistics for a given thread | |
| 1491 JavaThread* java_thread = find_java_thread_from_id(tid); | |
| 1492 if (java_thread == NULL) { | |
| 1493 return false; | |
| 1494 } | |
| 1495 | |
| 1496 if (type == JMM_STAT_THREAD_CONTENTION_COUNT) { | |
| 1497 ThreadService::reset_contention_count_stat(java_thread); | |
| 1498 } else { | |
| 1499 ThreadService::reset_contention_time_stat(java_thread); | |
| 1500 } | |
| 1501 } | |
| 1502 return true; | |
| 1503 break; | |
| 1504 } | |
| 1505 case JMM_STAT_PEAK_POOL_USAGE: { | |
| 1506 jobject o = obj.l; | |
| 1507 if (o == NULL) { | |
| 1508 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_FALSE); | |
| 1509 } | |
| 1510 | |
| 1511 oop pool_obj = JNIHandles::resolve(o); | |
| 1512 assert(pool_obj->is_instance(), "Should be an instanceOop"); | |
| 1513 instanceHandle ph(THREAD, (instanceOop) pool_obj); | |
| 1514 | |
| 1515 MemoryPool* pool = MemoryService::get_memory_pool(ph); | |
| 1516 if (pool != NULL) { | |
| 1517 pool->reset_peak_memory_usage(); | |
| 1518 return true; | |
| 1519 } | |
| 1520 break; | |
| 1521 } | |
| 1522 case JMM_STAT_GC_STAT: { | |
| 1523 jobject o = obj.l; | |
| 1524 if (o == NULL) { | |
| 1525 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_FALSE); | |
| 1526 } | |
| 1527 | |
| 1528 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(o, CHECK_0); | |
| 1529 if (mgr != NULL) { | |
| 1530 mgr->reset_gc_stat(); | |
| 1531 return true; | |
| 1532 } | |
| 1533 break; | |
| 1534 } | |
| 1535 default: | |
| 1536 assert(0, "Unknown Statistic Type"); | |
| 1537 } | |
| 1538 return false; | |
| 1539 JVM_END | |
| 1540 | |
| 1541 // Returns the fast estimate of CPU time consumed by | |
| 1542 // a given thread (in nanoseconds). | |
| 1543 // If thread_id == 0, return CPU time for the current thread. | |
| 1544 JVM_ENTRY(jlong, jmm_GetThreadCpuTime(JNIEnv *env, jlong thread_id)) | |
| 1545 if (!os::is_thread_cpu_time_supported()) { | |
| 1546 return -1; | |
| 1547 } | |
| 1548 | |
| 1549 if (thread_id < 0) { | |
| 1550 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1551 "Invalid thread ID", -1); | |
| 1552 } | |
| 1553 | |
| 1554 JavaThread* java_thread = NULL; | |
| 1555 if (thread_id == 0) { | |
| 1556 // current thread | |
| 1557 return os::current_thread_cpu_time(); | |
| 1558 } else { | |
| 1559 MutexLockerEx ml(Threads_lock); | |
| 1560 java_thread = find_java_thread_from_id(thread_id); | |
| 1561 if (java_thread != NULL) { | |
| 1562 return os::thread_cpu_time((Thread*) java_thread); | |
| 1563 } | |
| 1564 } | |
| 1565 return -1; | |
| 1566 JVM_END | |
| 1567 | |
| 1568 // Returns the CPU time consumed by a given thread (in nanoseconds). | |
| 1569 // If thread_id == 0, CPU time for the current thread is returned. | |
| 1570 // If user_sys_cpu_time = true, user level and system CPU time of | |
| 1571 // a given thread is returned; otherwise, only user level CPU time | |
| 1572 // is returned. | |
| 1573 JVM_ENTRY(jlong, jmm_GetThreadCpuTimeWithKind(JNIEnv *env, jlong thread_id, jboolean user_sys_cpu_time)) | |
| 1574 if (!os::is_thread_cpu_time_supported()) { | |
| 1575 return -1; | |
| 1576 } | |
| 1577 | |
| 1578 if (thread_id < 0) { | |
| 1579 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1580 "Invalid thread ID", -1); | |
| 1581 } | |
| 1582 | |
| 1583 JavaThread* java_thread = NULL; | |
| 1584 if (thread_id == 0) { | |
| 1585 // current thread | |
| 1586 return os::current_thread_cpu_time(user_sys_cpu_time != 0); | |
| 1587 } else { | |
| 1588 MutexLockerEx ml(Threads_lock); | |
| 1589 java_thread = find_java_thread_from_id(thread_id); | |
| 1590 if (java_thread != NULL) { | |
| 1591 return os::thread_cpu_time((Thread*) java_thread, user_sys_cpu_time != 0); | |
| 1592 } | |
| 1593 } | |
| 1594 return -1; | |
| 1595 JVM_END | |
| 1596 | |
|
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1597 // Gets an array containing the CPU times consumed by a set of threads |
|
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1598 // (in nanoseconds). Each element of the array is the CPU time for the |
|
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|
1599 // thread ID specified in the corresponding entry in the given array |
|
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|
1600 // of thread IDs; or -1 if the thread does not exist or has terminated. |
|
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|
1601 // If user_sys_cpu_time = true, the sum of user level and system CPU time |
|
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1602 // for the given thread is returned; otherwise, only user level CPU time |
|
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diff
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|
1603 // is returned. |
|
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diff
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|
1604 JVM_ENTRY(void, jmm_GetThreadCpuTimesWithKind(JNIEnv *env, jlongArray ids, |
|
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|
1605 jlongArray timeArray, |
|
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|
1606 jboolean user_sys_cpu_time)) |
|
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|
1607 // Check if threads is null |
|
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|
1608 if (ids == NULL || timeArray == NULL) { |
|
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|
1609 THROW(vmSymbols::java_lang_NullPointerException()); |
|
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diff
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|
1610 } |
|
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diff
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|
1611 |
|
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|
1612 ResourceMark rm(THREAD); |
|
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|
1613 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(ids)); |
|
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|
1614 typeArrayHandle ids_ah(THREAD, ta); |
|
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diff
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|
1615 |
|
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diff
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|
1616 typeArrayOop tia = typeArrayOop(JNIHandles::resolve_non_null(timeArray)); |
|
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|
1617 typeArrayHandle timeArray_h(THREAD, tia); |
|
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diff
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|
1618 |
|
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diff
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|
1619 // validate the thread id array |
|
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diff
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|
1620 validate_thread_id_array(ids_ah, CHECK); |
|
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diff
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|
1621 |
|
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diff
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|
1622 // timeArray must be of the same length as the given array of thread IDs |
|
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diff
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|
1623 int num_threads = ids_ah->length(); |
|
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diff
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|
1624 if (num_threads != timeArray_h->length()) { |
|
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diff
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|
1625 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), |
|
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diff
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|
1626 "The length of the given long array does not match the length of " |
|
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diff
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|
1627 "the given array of thread IDs"); |
|
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diff
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|
1628 } |
|
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diff
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|
1629 |
|
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diff
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|
1630 MutexLockerEx ml(Threads_lock); |
|
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diff
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|
1631 for (int i = 0; i < num_threads; i++) { |
|
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diff
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|
1632 JavaThread* java_thread = find_java_thread_from_id(ids_ah->long_at(i)); |
|
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diff
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|
1633 if (java_thread != NULL) { |
|
b1a2afa37ec4
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diff
changeset
|
1634 timeArray_h->long_at_put(i, os::thread_cpu_time((Thread*)java_thread, |
|
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diff
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|
1635 user_sys_cpu_time != 0)); |
|
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diff
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|
1636 } |
|
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7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
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|
1637 } |
|
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7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
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|
1638 JVM_END |
|
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diff
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|
1639 |
| 0 | 1640 // Returns a String array of all VM global flag names |
| 1641 JVM_ENTRY(jobjectArray, jmm_GetVMGlobalNames(JNIEnv *env)) | |
| 1642 // last flag entry is always NULL, so subtract 1 | |
| 1643 int nFlags = (int) Flag::numFlags - 1; | |
| 1644 // allocate a temp array | |
| 1142 | 1645 objArrayOop r = oopFactory::new_objArray(SystemDictionary::String_klass(), |
| 0 | 1646 nFlags, CHECK_0); |
| 1647 objArrayHandle flags_ah(THREAD, r); | |
| 1648 int num_entries = 0; | |
| 1649 for (int i = 0; i < nFlags; i++) { | |
| 1650 Flag* flag = &Flag::flags[i]; | |
|
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12103
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|
1651 // Exclude notproduct and develop flags in product builds. |
|
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
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12103
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|
1652 if (flag->is_constant_in_binary()) { |
|
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
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12103
diff
changeset
|
1653 continue; |
|
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
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12103
diff
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|
1654 } |
| 350 | 1655 // Exclude the locked (experimental, diagnostic) flags |
| 0 | 1656 if (flag->is_unlocked() || flag->is_unlocker()) { |
|
12322
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|
1657 Handle s = java_lang_String::create_from_str(flag->_name, CHECK_0); |
| 0 | 1658 flags_ah->obj_at_put(num_entries, s()); |
| 1659 num_entries++; | |
| 1660 } | |
| 1661 } | |
| 1662 | |
| 1663 if (num_entries < nFlags) { | |
| 1664 // Return array of right length | |
| 1142 | 1665 objArrayOop res = oopFactory::new_objArray(SystemDictionary::String_klass(), num_entries, CHECK_0); |
| 0 | 1666 for(int i = 0; i < num_entries; i++) { |
| 1667 res->obj_at_put(i, flags_ah->obj_at(i)); | |
| 1668 } | |
| 1669 return (jobjectArray)JNIHandles::make_local(env, res); | |
| 1670 } | |
| 1671 | |
| 1672 return (jobjectArray)JNIHandles::make_local(env, flags_ah()); | |
| 1673 JVM_END | |
| 1674 | |
|
1067
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|
1675 // Utility function used by jmm_GetVMGlobals. Returns false if flag type |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
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diff
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|
1676 // can't be determined, true otherwise. If false is returned, then *global |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
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diff
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|
1677 // will be incomplete and invalid. |
|
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diff
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|
1678 bool add_global_entry(JNIEnv* env, Handle name, jmmVMGlobal *global, Flag *flag, TRAPS) { |
| 0 | 1679 Handle flag_name; |
| 1680 if (name() == NULL) { | |
|
12322
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12103
diff
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|
1681 flag_name = java_lang_String::create_from_str(flag->_name, CHECK_false); |
| 0 | 1682 } else { |
| 1683 flag_name = name; | |
| 1684 } | |
| 1685 global->name = (jstring)JNIHandles::make_local(env, flag_name()); | |
| 1686 | |
| 1687 if (flag->is_bool()) { | |
| 1688 global->value.z = flag->get_bool() ? JNI_TRUE : JNI_FALSE; | |
| 1689 global->type = JMM_VMGLOBAL_TYPE_JBOOLEAN; | |
| 1690 } else if (flag->is_intx()) { | |
| 1691 global->value.j = (jlong)flag->get_intx(); | |
| 1692 global->type = JMM_VMGLOBAL_TYPE_JLONG; | |
| 1693 } else if (flag->is_uintx()) { | |
| 1694 global->value.j = (jlong)flag->get_uintx(); | |
| 1695 global->type = JMM_VMGLOBAL_TYPE_JLONG; | |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
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1064
diff
changeset
|
1696 } else if (flag->is_uint64_t()) { |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
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1064
diff
changeset
|
1697 global->value.j = (jlong)flag->get_uint64_t(); |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
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1064
diff
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|
1698 global->type = JMM_VMGLOBAL_TYPE_JLONG; |
| 0 | 1699 } else if (flag->is_ccstr()) { |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
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1064
diff
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|
1700 Handle str = java_lang_String::create_from_str(flag->get_ccstr(), CHECK_false); |
| 0 | 1701 global->value.l = (jobject)JNIHandles::make_local(env, str()); |
| 1702 global->type = JMM_VMGLOBAL_TYPE_JSTRING; | |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
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1064
diff
changeset
|
1703 } else { |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
parents:
1064
diff
changeset
|
1704 global->type = JMM_VMGLOBAL_TYPE_UNKNOWN; |
|
ba7ea42fc66e
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phh
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1064
diff
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|
1705 return false; |
| 0 | 1706 } |
| 1707 | |
| 1708 global->writeable = flag->is_writeable(); | |
| 1709 global->external = flag->is_external(); | |
|
12322
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8024545: make develop and notproduct flag values available in product builds
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12103
diff
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|
1710 switch (flag->get_origin()) { |
|
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
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12103
diff
changeset
|
1711 case Flag::DEFAULT: |
| 0 | 1712 global->origin = JMM_VMGLOBAL_ORIGIN_DEFAULT; |
| 1713 break; | |
|
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
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12103
diff
changeset
|
1714 case Flag::COMMAND_LINE: |
| 0 | 1715 global->origin = JMM_VMGLOBAL_ORIGIN_COMMAND_LINE; |
| 1716 break; | |
|
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
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12103
diff
changeset
|
1717 case Flag::ENVIRON_VAR: |
| 0 | 1718 global->origin = JMM_VMGLOBAL_ORIGIN_ENVIRON_VAR; |
| 1719 break; | |
|
12322
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8024545: make develop and notproduct flag values available in product builds
twisti
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12103
diff
changeset
|
1720 case Flag::CONFIG_FILE: |
| 0 | 1721 global->origin = JMM_VMGLOBAL_ORIGIN_CONFIG_FILE; |
| 1722 break; | |
|
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
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12103
diff
changeset
|
1723 case Flag::MANAGEMENT: |
| 0 | 1724 global->origin = JMM_VMGLOBAL_ORIGIN_MANAGEMENT; |
| 1725 break; | |
|
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
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12103
diff
changeset
|
1726 case Flag::ERGONOMIC: |
| 0 | 1727 global->origin = JMM_VMGLOBAL_ORIGIN_ERGONOMIC; |
| 1728 break; | |
| 1729 default: | |
| 1730 global->origin = JMM_VMGLOBAL_ORIGIN_OTHER; | |
| 1731 } | |
|
1067
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
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1064
diff
changeset
|
1732 |
|
ba7ea42fc66e
6898160: Need serviceability support for new vm argument type 'uint64_t'
phh
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1064
diff
changeset
|
1733 return true; |
| 0 | 1734 } |
| 1735 | |
| 1736 // Fill globals array of count length with jmmVMGlobal entries | |
| 1737 // specified by names. If names == NULL, fill globals array | |
| 1738 // with all Flags. Return value is number of entries | |
| 1739 // created in globals. | |
| 1740 // If a Flag with a given name in an array element does not | |
| 1741 // exist, globals[i].name will be set to NULL. | |
| 1742 JVM_ENTRY(jint, jmm_GetVMGlobals(JNIEnv *env, | |
| 1743 jobjectArray names, | |
| 1744 jmmVMGlobal *globals, | |
| 1745 jint count)) | |
| 1746 | |
| 1747 | |
| 1748 if (globals == NULL) { | |
| 1749 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1750 } | |
| 1751 | |
| 1752 ResourceMark rm(THREAD); | |
| 1753 | |
| 1754 if (names != NULL) { | |
| 1755 // return the requested globals | |
| 1756 objArrayOop ta = objArrayOop(JNIHandles::resolve_non_null(names)); | |
| 1757 objArrayHandle names_ah(THREAD, ta); | |
| 1758 // Make sure we have a String array | |
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1759 Klass* element_klass = ObjArrayKlass::cast(names_ah->klass())->element_klass(); |
| 1142 | 1760 if (element_klass != SystemDictionary::String_klass()) { |
| 0 | 1761 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), |
| 1762 "Array element type is not String class", 0); | |
| 1763 } | |
| 1764 | |
| 1765 int names_length = names_ah->length(); | |
| 1766 int num_entries = 0; | |
| 1767 for (int i = 0; i < names_length && i < count; i++) { | |
| 1768 oop s = names_ah->obj_at(i); | |
| 1769 if (s == NULL) { | |
| 1770 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1771 } | |
| 1772 | |
| 1773 Handle sh(THREAD, s); | |
| 1774 char* str = java_lang_String::as_utf8_string(s); | |
| 1775 Flag* flag = Flag::find_flag(str, strlen(str)); | |
|
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1776 if (flag != NULL && |
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1777 add_global_entry(env, sh, &globals[i], flag, THREAD)) { |
| 0 | 1778 num_entries++; |
| 1779 } else { | |
| 1780 globals[i].name = NULL; | |
| 1781 } | |
| 1782 } | |
| 1783 return num_entries; | |
| 1784 } else { | |
| 1785 // return all globals if names == NULL | |
| 1786 | |
| 1787 // last flag entry is always NULL, so subtract 1 | |
| 1788 int nFlags = (int) Flag::numFlags - 1; | |
| 1789 Handle null_h; | |
| 1790 int num_entries = 0; | |
| 1791 for (int i = 0; i < nFlags && num_entries < count; i++) { | |
| 1792 Flag* flag = &Flag::flags[i]; | |
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1793 // Exclude notproduct and develop flags in product builds. |
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1794 if (flag->is_constant_in_binary()) { |
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1795 continue; |
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1796 } |
| 350 | 1797 // Exclude the locked (diagnostic, experimental) flags |
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1798 if ((flag->is_unlocked() || flag->is_unlocker()) && |
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1799 add_global_entry(env, null_h, &globals[num_entries], flag, THREAD)) { |
| 0 | 1800 num_entries++; |
| 1801 } | |
| 1802 } | |
| 1803 return num_entries; | |
| 1804 } | |
| 1805 JVM_END | |
| 1806 | |
| 1807 JVM_ENTRY(void, jmm_SetVMGlobal(JNIEnv *env, jstring flag_name, jvalue new_value)) | |
| 1808 ResourceMark rm(THREAD); | |
| 1809 | |
| 1810 oop fn = JNIHandles::resolve_external_guard(flag_name); | |
| 1811 if (fn == NULL) { | |
| 1812 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 1813 "The flag name cannot be null."); | |
| 1814 } | |
| 1815 char* name = java_lang_String::as_utf8_string(fn); | |
| 1816 Flag* flag = Flag::find_flag(name, strlen(name)); | |
| 1817 if (flag == NULL) { | |
| 1818 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1819 "Flag does not exist."); | |
| 1820 } | |
| 1821 if (!flag->is_writeable()) { | |
| 1822 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 1823 "This flag is not writeable."); | |
| 1824 } | |
| 1825 | |
| 1826 bool succeed; | |
| 1827 if (flag->is_bool()) { | |
| 1828 bool bvalue = (new_value.z == JNI_TRUE ? true : false); | |
|
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1829 succeed = CommandLineFlags::boolAtPut(name, &bvalue, Flag::MANAGEMENT); |
| 0 | 1830 } else if (flag->is_intx()) { |
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1831 intx ivalue = (intx)new_value.j; |
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1832 succeed = CommandLineFlags::intxAtPut(name, &ivalue, Flag::MANAGEMENT); |
| 0 | 1833 } else if (flag->is_uintx()) { |
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1834 uintx uvalue = (uintx)new_value.j; |
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1835 |
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1836 if (strncmp(name, "MaxHeapFreeRatio", 17) == 0) { |
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1837 FormatBuffer<80> err_msg("%s", ""); |
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1838 if (!Arguments::verify_MaxHeapFreeRatio(err_msg, uvalue)) { |
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1839 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), err_msg.buffer()); |
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1840 } |
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1841 } else if (strncmp(name, "MinHeapFreeRatio", 17) == 0) { |
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1842 FormatBuffer<80> err_msg("%s", ""); |
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1843 if (!Arguments::verify_MinHeapFreeRatio(err_msg, uvalue)) { |
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1844 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), err_msg.buffer()); |
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1845 } |
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1846 } |
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1847 succeed = CommandLineFlags::uintxAtPut(name, &uvalue, Flag::MANAGEMENT); |
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1848 } else if (flag->is_uint64_t()) { |
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1849 uint64_t uvalue = (uint64_t)new_value.j; |
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1850 succeed = CommandLineFlags::uint64_tAtPut(name, &uvalue, Flag::MANAGEMENT); |
| 0 | 1851 } else if (flag->is_ccstr()) { |
| 1852 oop str = JNIHandles::resolve_external_guard(new_value.l); | |
| 1853 if (str == NULL) { | |
| 1854 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 1855 } | |
| 1856 ccstr svalue = java_lang_String::as_utf8_string(str); | |
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1857 succeed = CommandLineFlags::ccstrAtPut(name, &svalue, Flag::MANAGEMENT); |
| 0 | 1858 } |
| 1859 assert(succeed, "Setting flag should succeed"); | |
| 1860 JVM_END | |
| 1861 | |
| 1862 class ThreadTimesClosure: public ThreadClosure { | |
| 1863 private: | |
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1864 objArrayHandle _names_strings; |
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1865 char **_names_chars; |
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1866 typeArrayHandle _times; |
| 0 | 1867 int _names_len; |
| 1868 int _times_len; | |
| 1869 int _count; | |
| 1870 | |
| 1871 public: | |
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1872 ThreadTimesClosure(objArrayHandle names, typeArrayHandle times); |
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1873 ~ThreadTimesClosure(); |
| 0 | 1874 virtual void do_thread(Thread* thread); |
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1875 void do_unlocked(); |
| 0 | 1876 int count() { return _count; } |
| 1877 }; | |
| 1878 | |
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1879 ThreadTimesClosure::ThreadTimesClosure(objArrayHandle names, |
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1880 typeArrayHandle times) { |
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1881 assert(names() != NULL, "names was NULL"); |
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1882 assert(times() != NULL, "times was NULL"); |
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1883 _names_strings = names; |
| 0 | 1884 _names_len = names->length(); |
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1885 _names_chars = NEW_C_HEAP_ARRAY(char*, _names_len, mtInternal); |
| 0 | 1886 _times = times; |
| 1887 _times_len = times->length(); | |
| 1888 _count = 0; | |
| 1889 } | |
| 1890 | |
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1891 // |
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1892 // Called with Threads_lock held |
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1893 // |
| 0 | 1894 void ThreadTimesClosure::do_thread(Thread* thread) { |
| 1895 assert(thread != NULL, "thread was NULL"); | |
| 1896 | |
| 1897 // exclude externally visible JavaThreads | |
| 1898 if (thread->is_Java_thread() && !thread->is_hidden_from_external_view()) { | |
| 1899 return; | |
| 1900 } | |
| 1901 | |
| 1902 if (_count >= _names_len || _count >= _times_len) { | |
| 1903 // skip if the result array is not big enough | |
| 1904 return; | |
| 1905 } | |
| 1906 | |
| 1907 EXCEPTION_MARK; | |
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1908 ResourceMark rm(THREAD); // thread->name() uses ResourceArea |
| 0 | 1909 |
| 1910 assert(thread->name() != NULL, "All threads should have a name"); | |
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1911 _names_chars[_count] = strdup(thread->name()); |
| 0 | 1912 _times->long_at_put(_count, os::is_thread_cpu_time_supported() ? |
| 1913 os::thread_cpu_time(thread) : -1); | |
| 1914 _count++; | |
| 1915 } | |
| 1916 | |
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1917 // Called without Threads_lock, we can allocate String objects. |
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1918 void ThreadTimesClosure::do_unlocked() { |
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1919 |
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1920 EXCEPTION_MARK; |
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1921 for (int i = 0; i < _count; i++) { |
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1922 Handle s = java_lang_String::create_from_str(_names_chars[i], CHECK); |
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1923 _names_strings->obj_at_put(i, s()); |
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1924 } |
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1925 } |
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1926 |
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1927 ThreadTimesClosure::~ThreadTimesClosure() { |
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1928 for (int i = 0; i < _count; i++) { |
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1929 free(_names_chars[i]); |
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1930 } |
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1931 FREE_C_HEAP_ARRAY(char *, _names_chars, mtInternal); |
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1932 } |
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1933 |
| 0 | 1934 // Fills names with VM internal thread names and times with the corresponding |
| 1935 // CPU times. If names or times is NULL, a NullPointerException is thrown. | |
| 1936 // If the element type of names is not String, an IllegalArgumentException is | |
| 1937 // thrown. | |
| 1938 // If an array is not large enough to hold all the entries, only the entries | |
| 1939 // that fit will be returned. Return value is the number of VM internal | |
| 1940 // threads entries. | |
| 1941 JVM_ENTRY(jint, jmm_GetInternalThreadTimes(JNIEnv *env, | |
| 1942 jobjectArray names, | |
| 1943 jlongArray times)) | |
| 1944 if (names == NULL || times == NULL) { | |
| 1945 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 1946 } | |
| 1947 objArrayOop na = objArrayOop(JNIHandles::resolve_non_null(names)); | |
| 1948 objArrayHandle names_ah(THREAD, na); | |
| 1949 | |
| 1950 // Make sure we have a String array | |
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1951 Klass* element_klass = ObjArrayKlass::cast(names_ah->klass())->element_klass(); |
| 1142 | 1952 if (element_klass != SystemDictionary::String_klass()) { |
| 0 | 1953 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), |
| 1954 "Array element type is not String class", 0); | |
| 1955 } | |
| 1956 | |
| 1957 typeArrayOop ta = typeArrayOop(JNIHandles::resolve_non_null(times)); | |
| 1958 typeArrayHandle times_ah(THREAD, ta); | |
| 1959 | |
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1960 ThreadTimesClosure ttc(names_ah, times_ah); |
| 0 | 1961 { |
| 1962 MutexLockerEx ml(Threads_lock); | |
| 1963 Threads::threads_do(&ttc); | |
| 1964 } | |
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1965 ttc.do_unlocked(); |
| 0 | 1966 return ttc.count(); |
| 1967 JVM_END | |
| 1968 | |
| 1969 static Handle find_deadlocks(bool object_monitors_only, TRAPS) { | |
| 1970 ResourceMark rm(THREAD); | |
| 1971 | |
| 1972 VM_FindDeadlocks op(!object_monitors_only /* also check concurrent locks? */); | |
| 1973 VMThread::execute(&op); | |
| 1974 | |
| 1975 DeadlockCycle* deadlocks = op.result(); | |
| 1976 if (deadlocks == NULL) { | |
| 1977 // no deadlock found and return | |
| 1978 return Handle(); | |
| 1979 } | |
| 1980 | |
| 1981 int num_threads = 0; | |
| 1982 DeadlockCycle* cycle; | |
| 1983 for (cycle = deadlocks; cycle != NULL; cycle = cycle->next()) { | |
| 1984 num_threads += cycle->num_threads(); | |
| 1985 } | |
| 1986 | |
| 1142 | 1987 objArrayOop r = oopFactory::new_objArray(SystemDictionary::Thread_klass(), num_threads, CHECK_NH); |
| 0 | 1988 objArrayHandle threads_ah(THREAD, r); |
| 1989 | |
| 1990 int index = 0; | |
| 1991 for (cycle = deadlocks; cycle != NULL; cycle = cycle->next()) { | |
| 1992 GrowableArray<JavaThread*>* deadlock_threads = cycle->threads(); | |
| 1993 int len = deadlock_threads->length(); | |
| 1994 for (int i = 0; i < len; i++) { | |
| 1995 threads_ah->obj_at_put(index, deadlock_threads->at(i)->threadObj()); | |
| 1996 index++; | |
| 1997 } | |
| 1998 } | |
| 1999 return threads_ah; | |
| 2000 } | |
| 2001 | |
| 2002 // Finds cycles of threads that are deadlocked involved in object monitors | |
| 2003 // and JSR-166 synchronizers. | |
| 2004 // Returns an array of Thread objects which are in deadlock, if any. | |
| 2005 // Otherwise, returns NULL. | |
| 2006 // | |
| 2007 // Input parameter: | |
| 2008 // object_monitors_only - if true, only check object monitors | |
| 2009 // | |
| 2010 JVM_ENTRY(jobjectArray, jmm_FindDeadlockedThreads(JNIEnv *env, jboolean object_monitors_only)) | |
| 2011 Handle result = find_deadlocks(object_monitors_only != 0, CHECK_0); | |
| 2012 return (jobjectArray) JNIHandles::make_local(env, result()); | |
| 2013 JVM_END | |
| 2014 | |
| 2015 // Finds cycles of threads that are deadlocked on monitor locks | |
| 2016 // Returns an array of Thread objects which are in deadlock, if any. | |
| 2017 // Otherwise, returns NULL. | |
| 2018 JVM_ENTRY(jobjectArray, jmm_FindMonitorDeadlockedThreads(JNIEnv *env)) | |
| 2019 Handle result = find_deadlocks(true, CHECK_0); | |
| 2020 return (jobjectArray) JNIHandles::make_local(env, result()); | |
| 2021 JVM_END | |
| 2022 | |
| 2023 // Gets the information about GC extension attributes including | |
| 2024 // the name of the attribute, its type, and a short description. | |
| 2025 // | |
| 2026 // Input parameters: | |
| 2027 // mgr - GC memory manager | |
| 2028 // info - caller allocated array of jmmExtAttributeInfo | |
| 2029 // count - number of elements of the info array | |
| 2030 // | |
| 2031 // Returns the number of GC extension attributes filled in the info array; or | |
| 2032 // -1 if info is not big enough | |
| 2033 // | |
| 2034 JVM_ENTRY(jint, jmm_GetGCExtAttributeInfo(JNIEnv *env, jobject mgr, jmmExtAttributeInfo* info, jint count)) | |
| 2035 // All GC memory managers have 1 attribute (number of GC threads) | |
| 2036 if (count == 0) { | |
| 2037 return 0; | |
| 2038 } | |
| 2039 | |
| 2040 if (info == NULL) { | |
| 2041 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 2042 } | |
| 2043 | |
| 2044 info[0].name = "GcThreadCount"; | |
| 2045 info[0].type = 'I'; | |
| 2046 info[0].description = "Number of GC threads"; | |
| 2047 return 1; | |
| 2048 JVM_END | |
| 2049 | |
| 2050 // verify the given array is an array of java/lang/management/MemoryUsage objects | |
| 2051 // of a given length and return the objArrayOop | |
| 2052 static objArrayOop get_memory_usage_objArray(jobjectArray array, int length, TRAPS) { | |
| 2053 if (array == NULL) { | |
| 2054 THROW_(vmSymbols::java_lang_NullPointerException(), 0); | |
| 2055 } | |
| 2056 | |
| 2057 objArrayOop oa = objArrayOop(JNIHandles::resolve_non_null(array)); | |
| 2058 objArrayHandle array_h(THREAD, oa); | |
| 2059 | |
| 2060 // array must be of the given length | |
| 2061 if (length != array_h->length()) { | |
| 2062 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2063 "The length of the given MemoryUsage array does not match the number of memory pools.", 0); | |
| 2064 } | |
| 2065 | |
| 2066 // check if the element of array is of type MemoryUsage class | |
|
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2067 Klass* usage_klass = Management::java_lang_management_MemoryUsage_klass(CHECK_0); |
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2068 Klass* element_klass = ObjArrayKlass::cast(array_h->klass())->element_klass(); |
| 0 | 2069 if (element_klass != usage_klass) { |
| 2070 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2071 "The element type is not MemoryUsage class", 0); | |
| 2072 } | |
| 2073 | |
| 2074 return array_h(); | |
| 2075 } | |
| 2076 | |
| 2077 // Gets the statistics of the last GC of a given GC memory manager. | |
| 2078 // Input parameters: | |
| 2079 // obj - GarbageCollectorMXBean object | |
| 2080 // gc_stat - caller allocated jmmGCStat where: | |
| 2081 // a. before_gc_usage - array of MemoryUsage objects | |
| 2082 // b. after_gc_usage - array of MemoryUsage objects | |
| 2083 // c. gc_ext_attributes_values_size is set to the | |
| 2084 // gc_ext_attribute_values array allocated | |
| 2085 // d. gc_ext_attribute_values is a caller allocated array of jvalue. | |
| 2086 // | |
| 2087 // On return, | |
| 2088 // gc_index == 0 indicates no GC statistics available | |
| 2089 // | |
| 2090 // before_gc_usage and after_gc_usage - filled with per memory pool | |
| 2091 // before and after GC usage in the same order as the memory pools | |
| 2092 // returned by GetMemoryPools for a given GC memory manager. | |
| 2093 // num_gc_ext_attributes indicates the number of elements in | |
| 2094 // the gc_ext_attribute_values array is filled; or | |
| 2095 // -1 if the gc_ext_attributes_values array is not big enough | |
| 2096 // | |
| 2097 JVM_ENTRY(void, jmm_GetLastGCStat(JNIEnv *env, jobject obj, jmmGCStat *gc_stat)) | |
| 2098 ResourceMark rm(THREAD); | |
| 2099 | |
| 2100 if (gc_stat->gc_ext_attribute_values_size > 0 && gc_stat->gc_ext_attribute_values == NULL) { | |
| 2101 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 2102 } | |
| 2103 | |
| 2104 // Get the GCMemoryManager | |
| 2105 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK); | |
| 2106 | |
| 2107 // Make a copy of the last GC statistics | |
| 2108 // GC may occur while constructing the last GC information | |
| 2109 int num_pools = MemoryService::num_memory_pools(); | |
|
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2110 GCStatInfo stat(num_pools); |
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2111 if (mgr->get_last_gc_stat(&stat) == 0) { |
|
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2112 gc_stat->gc_index = 0; |
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2113 return; |
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2114 } |
| 0 | 2115 |
|
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2116 gc_stat->gc_index = stat.gc_index(); |
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2117 gc_stat->start_time = Management::ticks_to_ms(stat.start_time()); |
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2118 gc_stat->end_time = Management::ticks_to_ms(stat.end_time()); |
| 0 | 2119 |
| 2120 // Current implementation does not have GC extension attributes | |
| 2121 gc_stat->num_gc_ext_attributes = 0; | |
| 2122 | |
| 2123 // Fill the arrays of MemoryUsage objects with before and after GC | |
| 2124 // per pool memory usage | |
| 2125 objArrayOop bu = get_memory_usage_objArray(gc_stat->usage_before_gc, | |
| 2126 num_pools, | |
| 2127 CHECK); | |
| 2128 objArrayHandle usage_before_gc_ah(THREAD, bu); | |
| 2129 | |
| 2130 objArrayOop au = get_memory_usage_objArray(gc_stat->usage_after_gc, | |
| 2131 num_pools, | |
| 2132 CHECK); | |
| 2133 objArrayHandle usage_after_gc_ah(THREAD, au); | |
| 2134 | |
| 2135 for (int i = 0; i < num_pools; i++) { | |
|
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2136 Handle before_usage = MemoryService::create_MemoryUsage_obj(stat.before_gc_usage_for_pool(i), CHECK); |
| 0 | 2137 Handle after_usage; |
| 2138 | |
|
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2139 MemoryUsage u = stat.after_gc_usage_for_pool(i); |
| 0 | 2140 if (u.max_size() == 0 && u.used() > 0) { |
| 2141 // If max size == 0, this pool is a survivor space. | |
| 2142 // Set max size = -1 since the pools will be swapped after GC. | |
| 2143 MemoryUsage usage(u.init_size(), u.used(), u.committed(), (size_t)-1); | |
| 2144 after_usage = MemoryService::create_MemoryUsage_obj(usage, CHECK); | |
| 2145 } else { | |
|
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2146 after_usage = MemoryService::create_MemoryUsage_obj(stat.after_gc_usage_for_pool(i), CHECK); |
| 0 | 2147 } |
| 2148 usage_before_gc_ah->obj_at_put(i, before_usage()); | |
| 2149 usage_after_gc_ah->obj_at_put(i, after_usage()); | |
| 2150 } | |
| 2151 | |
| 2152 if (gc_stat->gc_ext_attribute_values_size > 0) { | |
| 2153 // Current implementation only has 1 attribute (number of GC threads) | |
| 2154 // The type is 'I' | |
| 2155 gc_stat->gc_ext_attribute_values[0].i = mgr->num_gc_threads(); | |
| 2156 } | |
| 2157 JVM_END | |
| 2158 | |
|
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2159 JVM_ENTRY(void, jmm_SetGCNotificationEnabled(JNIEnv *env, jobject obj, jboolean enabled)) |
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2160 ResourceMark rm(THREAD); |
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2161 // Get the GCMemoryManager |
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2162 GCMemoryManager* mgr = get_gc_memory_manager_from_jobject(obj, CHECK); |
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2163 mgr->set_notification_enabled(enabled?true:false); |
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2164 JVM_END |
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2165 |
| 0 | 2166 // Dump heap - Returns 0 if succeeds. |
| 2167 JVM_ENTRY(jint, jmm_DumpHeap0(JNIEnv *env, jstring outputfile, jboolean live)) | |
|
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|
2168 #if INCLUDE_SERVICES |
| 0 | 2169 ResourceMark rm(THREAD); |
| 2170 oop on = JNIHandles::resolve_external_guard(outputfile); | |
| 2171 if (on == NULL) { | |
| 2172 THROW_MSG_(vmSymbols::java_lang_NullPointerException(), | |
| 2173 "Output file name cannot be null.", -1); | |
| 2174 } | |
|
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2175 char* name = java_lang_String::as_platform_dependent_str(on, CHECK_(-1)); |
| 0 | 2176 if (name == NULL) { |
| 2177 THROW_MSG_(vmSymbols::java_lang_NullPointerException(), | |
| 2178 "Output file name cannot be null.", -1); | |
| 2179 } | |
| 2180 HeapDumper dumper(live ? true : false); | |
| 2181 if (dumper.dump(name) != 0) { | |
| 2182 const char* errmsg = dumper.error_as_C_string(); | |
| 2183 THROW_MSG_(vmSymbols::java_io_IOException(), errmsg, -1); | |
| 2184 } | |
| 2185 return 0; | |
|
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2186 #else // INCLUDE_SERVICES |
| 0 | 2187 return -1; |
|
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2188 #endif // INCLUDE_SERVICES |
| 0 | 2189 JVM_END |
| 2190 | |
| 4133 | 2191 JVM_ENTRY(jobjectArray, jmm_GetDiagnosticCommands(JNIEnv *env)) |
| 2192 ResourceMark rm(THREAD); | |
|
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2193 GrowableArray<const char *>* dcmd_list = DCmdFactory::DCmd_list(DCmd_Source_MBean); |
| 4133 | 2194 objArrayOop cmd_array_oop = oopFactory::new_objArray(SystemDictionary::String_klass(), |
| 2195 dcmd_list->length(), CHECK_NULL); | |
| 2196 objArrayHandle cmd_array(THREAD, cmd_array_oop); | |
| 2197 for (int i = 0; i < dcmd_list->length(); i++) { | |
| 2198 oop cmd_name = java_lang_String::create_oop_from_str(dcmd_list->at(i), CHECK_NULL); | |
| 2199 cmd_array->obj_at_put(i, cmd_name); | |
| 2200 } | |
| 2201 return (jobjectArray) JNIHandles::make_local(env, cmd_array()); | |
| 2202 JVM_END | |
| 2203 | |
| 2204 JVM_ENTRY(void, jmm_GetDiagnosticCommandInfo(JNIEnv *env, jobjectArray cmds, | |
| 2205 dcmdInfo* infoArray)) | |
| 2206 if (cmds == NULL || infoArray == NULL) { | |
| 2207 THROW(vmSymbols::java_lang_NullPointerException()); | |
| 2208 } | |
| 2209 | |
| 2210 ResourceMark rm(THREAD); | |
| 2211 | |
| 2212 objArrayOop ca = objArrayOop(JNIHandles::resolve_non_null(cmds)); | |
| 2213 objArrayHandle cmds_ah(THREAD, ca); | |
| 2214 | |
| 2215 // Make sure we have a String array | |
|
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2216 Klass* element_klass = ObjArrayKlass::cast(cmds_ah->klass())->element_klass(); |
| 4133 | 2217 if (element_klass != SystemDictionary::String_klass()) { |
| 2218 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2219 "Array element type is not String class"); | |
| 2220 } | |
| 2221 | |
|
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2222 GrowableArray<DCmdInfo *>* info_list = DCmdFactory::DCmdInfo_list(DCmd_Source_MBean); |
| 4133 | 2223 |
| 2224 int num_cmds = cmds_ah->length(); | |
| 2225 for (int i = 0; i < num_cmds; i++) { | |
| 2226 oop cmd = cmds_ah->obj_at(i); | |
| 2227 if (cmd == NULL) { | |
| 2228 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2229 "Command name cannot be null."); | |
| 2230 } | |
| 2231 char* cmd_name = java_lang_String::as_utf8_string(cmd); | |
| 2232 if (cmd_name == NULL) { | |
| 2233 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2234 "Command name cannot be null."); | |
| 2235 } | |
| 2236 int pos = info_list->find((void*)cmd_name,DCmdInfo::by_name); | |
| 2237 if (pos == -1) { | |
| 2238 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2239 "Unknown diagnostic command"); | |
| 2240 } | |
| 2241 DCmdInfo* info = info_list->at(pos); | |
| 2242 infoArray[i].name = info->name(); | |
| 2243 infoArray[i].description = info->description(); | |
| 2244 infoArray[i].impact = info->impact(); | |
|
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2245 JavaPermission p = info->permission(); |
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2246 infoArray[i].permission_class = p._class; |
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2247 infoArray[i].permission_name = p._name; |
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2248 infoArray[i].permission_action = p._action; |
| 4133 | 2249 infoArray[i].num_arguments = info->num_arguments(); |
| 2250 infoArray[i].enabled = info->is_enabled(); | |
| 2251 } | |
| 2252 JVM_END | |
| 2253 | |
| 2254 JVM_ENTRY(void, jmm_GetDiagnosticCommandArgumentsInfo(JNIEnv *env, | |
| 2255 jstring command, dcmdArgInfo* infoArray)) | |
| 2256 ResourceMark rm(THREAD); | |
| 2257 oop cmd = JNIHandles::resolve_external_guard(command); | |
| 2258 if (cmd == NULL) { | |
| 2259 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2260 "Command line cannot be null."); | |
| 2261 } | |
| 2262 char* cmd_name = java_lang_String::as_utf8_string(cmd); | |
| 2263 if (cmd_name == NULL) { | |
| 2264 THROW_MSG(vmSymbols::java_lang_NullPointerException(), | |
| 2265 "Command line content cannot be null."); | |
| 2266 } | |
| 2267 DCmd* dcmd = NULL; | |
|
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2268 DCmdFactory*factory = DCmdFactory::factory(DCmd_Source_MBean, cmd_name, |
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2269 strlen(cmd_name)); |
| 4133 | 2270 if (factory != NULL) { |
| 2271 dcmd = factory->create_resource_instance(NULL); | |
| 2272 } | |
| 2273 if (dcmd == NULL) { | |
| 2274 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), | |
| 2275 "Unknown diagnostic command"); | |
| 2276 } | |
| 2277 DCmdMark mark(dcmd); | |
| 2278 GrowableArray<DCmdArgumentInfo*>* array = dcmd->argument_info_array(); | |
| 2279 if (array->length() == 0) { | |
| 2280 return; | |
| 2281 } | |
| 2282 for (int i = 0; i < array->length(); i++) { | |
| 2283 infoArray[i].name = array->at(i)->name(); | |
| 2284 infoArray[i].description = array->at(i)->description(); | |
| 2285 infoArray[i].type = array->at(i)->type(); | |
| 2286 infoArray[i].default_string = array->at(i)->default_string(); | |
| 2287 infoArray[i].mandatory = array->at(i)->is_mandatory(); | |
| 2288 infoArray[i].option = array->at(i)->is_option(); | |
|
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2289 infoArray[i].multiple = array->at(i)->is_multiple(); |
| 4133 | 2290 infoArray[i].position = array->at(i)->position(); |
| 2291 } | |
| 2292 return; | |
| 2293 JVM_END | |
| 2294 | |
| 2295 JVM_ENTRY(jstring, jmm_ExecuteDiagnosticCommand(JNIEnv *env, jstring commandline)) | |
| 2296 ResourceMark rm(THREAD); | |
| 2297 oop cmd = JNIHandles::resolve_external_guard(commandline); | |
| 2298 if (cmd == NULL) { | |
| 2299 THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(), | |
| 2300 "Command line cannot be null."); | |
| 2301 } | |
| 2302 char* cmdline = java_lang_String::as_utf8_string(cmd); | |
| 2303 if (cmdline == NULL) { | |
| 2304 THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(), | |
| 2305 "Command line content cannot be null."); | |
| 2306 } | |
| 2307 bufferedStream output; | |
|
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2308 DCmd::parse_and_execute(DCmd_Source_MBean, &output, cmdline, ' ', CHECK_NULL); |
| 4133 | 2309 oop result = java_lang_String::create_oop_from_str(output.as_string(), CHECK_NULL); |
| 2310 return (jstring) JNIHandles::make_local(env, result); | |
| 2311 JVM_END | |
| 2312 | |
|
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2313 JVM_ENTRY(void, jmm_SetDiagnosticFrameworkNotificationEnabled(JNIEnv *env, jboolean enabled)) |
|
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2314 DCmdFactory::set_jmx_notification_enabled(enabled?true:false); |
|
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2315 JVM_END |
|
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2316 |
| 0 | 2317 jlong Management::ticks_to_ms(jlong ticks) { |
| 2318 assert(os::elapsed_frequency() > 0, "Must be non-zero"); | |
| 2319 return (jlong)(((double)ticks / (double)os::elapsed_frequency()) | |
| 2320 * (double)1000.0); | |
| 2321 } | |
| 2322 | |
| 2323 const struct jmmInterface_1_ jmm_interface = { | |
| 2324 NULL, | |
| 2325 NULL, | |
| 2326 jmm_GetVersion, | |
| 2327 jmm_GetOptionalSupport, | |
| 2328 jmm_GetInputArguments, | |
| 2329 jmm_GetThreadInfo, | |
| 2330 jmm_GetInputArgumentArray, | |
| 2331 jmm_GetMemoryPools, | |
| 2332 jmm_GetMemoryManagers, | |
| 2333 jmm_GetMemoryPoolUsage, | |
| 2334 jmm_GetPeakMemoryPoolUsage, | |
|
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2335 jmm_GetThreadAllocatedMemory, |
| 0 | 2336 jmm_GetMemoryUsage, |
| 2337 jmm_GetLongAttribute, | |
| 2338 jmm_GetBoolAttribute, | |
| 2339 jmm_SetBoolAttribute, | |
| 2340 jmm_GetLongAttributes, | |
| 2341 jmm_FindMonitorDeadlockedThreads, | |
| 2342 jmm_GetThreadCpuTime, | |
| 2343 jmm_GetVMGlobalNames, | |
| 2344 jmm_GetVMGlobals, | |
| 2345 jmm_GetInternalThreadTimes, | |
| 2346 jmm_ResetStatistic, | |
| 2347 jmm_SetPoolSensor, | |
| 2348 jmm_SetPoolThreshold, | |
| 2349 jmm_GetPoolCollectionUsage, | |
| 2350 jmm_GetGCExtAttributeInfo, | |
| 2351 jmm_GetLastGCStat, | |
| 2352 jmm_GetThreadCpuTimeWithKind, | |
|
2100
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7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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2353 jmm_GetThreadCpuTimesWithKind, |
| 0 | 2354 jmm_DumpHeap0, |
| 2355 jmm_FindDeadlockedThreads, | |
| 2356 jmm_SetVMGlobal, | |
| 2357 NULL, | |
|
3356
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7036199: Adding a notification to the implementation of GarbageCollectorMXBeans
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2358 jmm_DumpThreads, |
| 4133 | 2359 jmm_SetGCNotificationEnabled, |
| 2360 jmm_GetDiagnosticCommands, | |
| 2361 jmm_GetDiagnosticCommandInfo, | |
| 2362 jmm_GetDiagnosticCommandArgumentsInfo, | |
|
10215
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8004095: Add support for JMX interface to Diagnostic Framework and Commands
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diff
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2363 jmm_ExecuteDiagnosticCommand, |
|
31a4e55f8c9d
8004095: Add support for JMX interface to Diagnostic Framework and Commands
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2364 jmm_SetDiagnosticFrameworkNotificationEnabled |
| 0 | 2365 }; |
|
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2366 #endif // INCLUDE_MANAGEMENT |
| 0 | 2367 |
| 2368 void* Management::get_jmm_interface(int version) { | |
|
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2369 #if INCLUDE_MANAGEMENT |
| 0 | 2370 if (version == JMM_VERSION_1_0) { |
| 2371 return (void*) &jmm_interface; | |
| 2372 } | |
|
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changeset
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2373 #endif // INCLUDE_MANAGEMENT |
| 0 | 2374 return NULL; |
| 2375 } |