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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/isolate.h" | 5 #include "vm/isolate.h" |
6 | 6 |
7 #include "include/dart_api.h" | 7 #include "include/dart_api.h" |
8 #include "platform/assert.h" | 8 #include "platform/assert.h" |
9 #include "platform/json.h" | 9 #include "platform/json.h" |
10 #include "vm/code_observers.h" | 10 #include "vm/code_observers.h" |
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594 deoptimized_code_array_(GrowableObjectArray::null()), | 594 deoptimized_code_array_(GrowableObjectArray::null()), |
595 metrics_list_head_(NULL), | 595 metrics_list_head_(NULL), |
596 next_(NULL), | 596 next_(NULL), |
597 REUSABLE_HANDLE_LIST(REUSABLE_HANDLE_INITIALIZERS) | 597 REUSABLE_HANDLE_LIST(REUSABLE_HANDLE_INITIALIZERS) |
598 REUSABLE_HANDLE_LIST(REUSABLE_HANDLE_SCOPE_INIT) | 598 REUSABLE_HANDLE_LIST(REUSABLE_HANDLE_SCOPE_INIT) |
599 reusable_handles_() { | 599 reusable_handles_() { |
600 set_vm_tag(VMTag::kIdleTagId); | 600 set_vm_tag(VMTag::kIdleTagId); |
601 set_user_tag(UserTags::kDefaultUserTag); | 601 set_user_tag(UserTags::kDefaultUserTag); |
602 } | 602 } |
603 | 603 |
| 604 Isolate::Isolate(Isolate* original) |
| 605 : vm_tag_(0), |
| 606 store_buffer_(true), |
| 607 class_table_(original->class_table()), |
| 608 message_notify_callback_(NULL), |
| 609 name_(NULL), |
| 610 start_time_(OS::GetCurrentTimeMicros()), |
| 611 main_port_(0), |
| 612 pause_capability_(0), |
| 613 terminate_capability_(0), |
| 614 errors_fatal_(true), |
| 615 heap_(NULL), |
| 616 object_store_(NULL), |
| 617 top_exit_frame_info_(0), |
| 618 init_callback_data_(NULL), |
| 619 environment_callback_(NULL), |
| 620 library_tag_handler_(NULL), |
| 621 api_state_(NULL), |
| 622 stub_code_(NULL), |
| 623 debugger_(NULL), |
| 624 single_step_(false), |
| 625 resume_request_(false), |
| 626 random_(), |
| 627 simulator_(NULL), |
| 628 long_jump_base_(NULL), |
| 629 timer_list_(), |
| 630 deopt_id_(0), |
| 631 mutex_(new Mutex()), |
| 632 stack_limit_(0), |
| 633 saved_stack_limit_(0), |
| 634 stack_overflow_flags_(0), |
| 635 stack_overflow_count_(0), |
| 636 message_handler_(NULL), |
| 637 spawn_state_(NULL), |
| 638 is_runnable_(false), |
| 639 gc_prologue_callback_(NULL), |
| 640 gc_epilogue_callback_(NULL), |
| 641 defer_finalization_count_(0), |
| 642 deopt_context_(NULL), |
| 643 is_service_isolate_(false), |
| 644 log_(new class Log()), |
| 645 stacktrace_(NULL), |
| 646 stack_frame_index_(-1), |
| 647 last_allocationprofile_accumulator_reset_timestamp_(0), |
| 648 last_allocationprofile_gc_timestamp_(0), |
| 649 cha_(NULL), |
| 650 object_id_ring_(NULL), |
| 651 trace_buffer_(NULL), |
| 652 profiler_data_(NULL), |
| 653 thread_state_(NULL), |
| 654 tag_table_(GrowableObjectArray::null()), |
| 655 current_tag_(UserTag::null()), |
| 656 default_tag_(UserTag::null()), |
| 657 metrics_list_head_(NULL), |
| 658 next_(NULL), |
| 659 REUSABLE_HANDLE_LIST(REUSABLE_HANDLE_INITIALIZERS) |
| 660 REUSABLE_HANDLE_LIST(REUSABLE_HANDLE_SCOPE_INIT) |
| 661 reusable_handles_() { |
| 662 } |
604 #undef REUSABLE_HANDLE_SCOPE_INIT | 663 #undef REUSABLE_HANDLE_SCOPE_INIT |
605 #undef REUSABLE_HANDLE_INITIALIZERS | 664 #undef REUSABLE_HANDLE_INITIALIZERS |
606 | 665 |
607 Isolate::~Isolate() { | 666 Isolate::~Isolate() { |
608 free(name_); | 667 free(name_); |
609 delete heap_; | 668 delete heap_; |
610 delete object_store_; | 669 delete object_store_; |
611 delete api_state_; | 670 delete api_state_; |
612 delete stub_code_; | 671 delete stub_code_; |
613 delete debugger_; | 672 delete debugger_; |
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1300 } | 1359 } |
1301 | 1360 |
1302 private: | 1361 private: |
1303 DISALLOW_COPY_AND_ASSIGN(FinalizeWeakPersistentHandlesVisitor); | 1362 DISALLOW_COPY_AND_ASSIGN(FinalizeWeakPersistentHandlesVisitor); |
1304 }; | 1363 }; |
1305 | 1364 |
1306 | 1365 |
1307 void Isolate::Shutdown() { | 1366 void Isolate::Shutdown() { |
1308 ASSERT(this == Isolate::Current()); | 1367 ASSERT(this == Isolate::Current()); |
1309 ASSERT(top_resource() == NULL); | 1368 ASSERT(top_resource() == NULL); |
1310 | |
1311 // Remove this isolate from the list *before* we start tearing it down, to | |
1312 // avoid exposing it in a state of decay. | |
1313 RemoveIsolateFromList(this); | |
1314 | |
1315 // Create an area where we do have a zone and a handle scope so that we can | |
1316 // call VM functions while tearing this isolate down. | |
1317 { | |
1318 StackZone stack_zone(this); | |
1319 HandleScope handle_scope(this); | |
1320 | |
1321 #if defined(DEBUG) | 1369 #if defined(DEBUG) |
1322 if (heap_ != NULL) { | 1370 if (heap_ != NULL) { |
1323 // Wait for concurrent GC tasks to finish before final verification. | 1371 // Wait for concurrent GC tasks to finish before final verification. |
1324 PageSpace* old_space = heap_->old_space(); | 1372 PageSpace* old_space = heap_->old_space(); |
1325 MonitorLocker ml(old_space->tasks_lock()); | 1373 MonitorLocker ml(old_space->tasks_lock()); |
1326 while (old_space->tasks() > 0) { | 1374 while (old_space->tasks() > 0) { |
1327 ml.Wait(); | 1375 ml.Wait(); |
1328 } | 1376 } |
1329 // The VM isolate keeps all objects marked. | 1377 // The VM isolate keeps all objects marked. |
1330 heap_->Verify(this == Dart::vm_isolate() ? kRequireMarked : kForbidMarked); | 1378 heap_->Verify(this == Dart::vm_isolate() ? kRequireMarked : kForbidMarked); |
1331 } | 1379 } |
1332 #endif // DEBUG | 1380 #endif // DEBUG |
1333 | 1381 |
| 1382 // Remove this isolate from the list *before* we start tearing it down, to |
| 1383 // avoid exposing it in a state of decay. |
| 1384 RemoveIsolateFromList(this); |
| 1385 |
| 1386 // Create an area where we do have a zone and a handle scope so that we can |
| 1387 // call VM functions while tearing this isolate down. |
| 1388 { |
| 1389 StackZone stack_zone(this); |
| 1390 HandleScope handle_scope(this); |
| 1391 |
1334 // Notify exit listeners that this isolate is shutting down. | 1392 // Notify exit listeners that this isolate is shutting down. |
1335 if (object_store() != NULL) { | 1393 if (object_store() != NULL) { |
1336 NotifyExitListeners(); | 1394 NotifyExitListeners(); |
1337 } | 1395 } |
1338 | 1396 |
1339 // Clean up debugger resources. | 1397 // Clean up debugger resources. |
1340 debugger()->Shutdown(); | 1398 debugger()->Shutdown(); |
1341 | 1399 |
1342 // Close all the ports owned by this isolate. | 1400 // Close all the ports owned by this isolate. |
1343 PortMap::ClosePorts(message_handler()); | 1401 PortMap::ClosePorts(message_handler()); |
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1367 } | 1425 } |
1368 } | 1426 } |
1369 | 1427 |
1370 // TODO(5411455): For now just make sure there are no current isolates | 1428 // TODO(5411455): For now just make sure there are no current isolates |
1371 // as we are shutting down the isolate. | 1429 // as we are shutting down the isolate. |
1372 SetCurrent(NULL); | 1430 SetCurrent(NULL); |
1373 Profiler::ShutdownProfilingForIsolate(this); | 1431 Profiler::ShutdownProfilingForIsolate(this); |
1374 } | 1432 } |
1375 | 1433 |
1376 | 1434 |
| 1435 Isolate* Isolate::ShallowCopy() { |
| 1436 return new Isolate(this); |
| 1437 } |
| 1438 |
| 1439 |
1377 Dart_IsolateCreateCallback Isolate::create_callback_ = NULL; | 1440 Dart_IsolateCreateCallback Isolate::create_callback_ = NULL; |
1378 Dart_IsolateInterruptCallback Isolate::interrupt_callback_ = NULL; | 1441 Dart_IsolateInterruptCallback Isolate::interrupt_callback_ = NULL; |
1379 Dart_IsolateUnhandledExceptionCallback | 1442 Dart_IsolateUnhandledExceptionCallback |
1380 Isolate::unhandled_exception_callback_ = NULL; | 1443 Isolate::unhandled_exception_callback_ = NULL; |
1381 Dart_IsolateShutdownCallback Isolate::shutdown_callback_ = NULL; | 1444 Dart_IsolateShutdownCallback Isolate::shutdown_callback_ = NULL; |
1382 Dart_FileOpenCallback Isolate::file_open_callback_ = NULL; | 1445 Dart_FileOpenCallback Isolate::file_open_callback_ = NULL; |
1383 Dart_FileReadCallback Isolate::file_read_callback_ = NULL; | 1446 Dart_FileReadCallback Isolate::file_read_callback_ = NULL; |
1384 Dart_FileWriteCallback Isolate::file_write_callback_ = NULL; | 1447 Dart_FileWriteCallback Isolate::file_write_callback_ = NULL; |
1385 Dart_FileCloseCallback Isolate::file_close_callback_ = NULL; | 1448 Dart_FileCloseCallback Isolate::file_close_callback_ = NULL; |
1386 Dart_EntropySource Isolate::entropy_source_callback_ = NULL; | 1449 Dart_EntropySource Isolate::entropy_source_callback_ = NULL; |
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1909 serialized_message_, serialized_message_len_); | 1972 serialized_message_, serialized_message_len_); |
1910 } | 1973 } |
1911 | 1974 |
1912 | 1975 |
1913 void IsolateSpawnState::Cleanup() { | 1976 void IsolateSpawnState::Cleanup() { |
1914 SwitchIsolateScope switch_scope(I); | 1977 SwitchIsolateScope switch_scope(I); |
1915 Dart::ShutdownIsolate(); | 1978 Dart::ShutdownIsolate(); |
1916 } | 1979 } |
1917 | 1980 |
1918 } // namespace dart | 1981 } // namespace dart |
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