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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 "include/dart_native_api.h" | 8 #include "include/dart_native_api.h" |
9 #include "platform/assert.h" | 9 #include "platform/assert.h" |
10 #include "platform/text_buffer.h" | 10 #include "platform/text_buffer.h" |
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757 #if defined(DEBUG) | 757 #if defined(DEBUG) |
758 #define REUSABLE_HANDLE_SCOPE_INIT(object) \ | 758 #define REUSABLE_HANDLE_SCOPE_INIT(object) \ |
759 reusable_##object##_handle_scope_active_(false), | 759 reusable_##object##_handle_scope_active_(false), |
760 #else | 760 #else |
761 #define REUSABLE_HANDLE_SCOPE_INIT(object) | 761 #define REUSABLE_HANDLE_SCOPE_INIT(object) |
762 #endif // defined(DEBUG) | 762 #endif // defined(DEBUG) |
763 | 763 |
764 #define REUSABLE_HANDLE_INITIALIZERS(object) \ | 764 #define REUSABLE_HANDLE_INITIALIZERS(object) \ |
765 object##_handle_(NULL), | 765 object##_handle_(NULL), |
766 | 766 |
| 767 // TODO(srdjan): Some Isolate monitors can be shared. Replace their usage with |
| 768 // that shared monitor. |
767 Isolate::Isolate(const Dart_IsolateFlags& api_flags) | 769 Isolate::Isolate(const Dart_IsolateFlags& api_flags) |
768 : stack_limit_(0), | 770 : stack_limit_(0), |
769 store_buffer_(new StoreBuffer()), | 771 store_buffer_(new StoreBuffer()), |
770 heap_(NULL), | 772 heap_(NULL), |
771 user_tag_(0), | 773 user_tag_(0), |
772 current_tag_(UserTag::null()), | 774 current_tag_(UserTag::null()), |
773 default_tag_(UserTag::null()), | 775 default_tag_(UserTag::null()), |
774 class_table_(), | 776 class_table_(), |
775 single_step_(false), | 777 single_step_(false), |
776 thread_registry_(new ThreadRegistry()), | 778 thread_registry_(new ThreadRegistry()), |
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824 pending_service_extension_calls_(GrowableObjectArray::null()), | 826 pending_service_extension_calls_(GrowableObjectArray::null()), |
825 registered_service_extension_handlers_(GrowableObjectArray::null()), | 827 registered_service_extension_handlers_(GrowableObjectArray::null()), |
826 metrics_list_head_(NULL), | 828 metrics_list_head_(NULL), |
827 compilation_allowed_(true), | 829 compilation_allowed_(true), |
828 all_classes_finalized_(false), | 830 all_classes_finalized_(false), |
829 next_(NULL), | 831 next_(NULL), |
830 pause_loop_monitor_(NULL), | 832 pause_loop_monitor_(NULL), |
831 cha_invalidation_gen_(kInvalidGen), | 833 cha_invalidation_gen_(kInvalidGen), |
832 field_invalidation_gen_(kInvalidGen), | 834 field_invalidation_gen_(kInvalidGen), |
833 prefix_invalidation_gen_(kInvalidGen), | 835 prefix_invalidation_gen_(kInvalidGen), |
| 836 boxed_field_list_monitor_(new Monitor()), |
| 837 boxed_field_list_(GrowableObjectArray::null()), |
834 spawn_count_monitor_(new Monitor()), | 838 spawn_count_monitor_(new Monitor()), |
835 spawn_count_(0) { | 839 spawn_count_(0) { |
836 flags_.CopyFrom(api_flags); | 840 flags_.CopyFrom(api_flags); |
837 // TODO(asiva): A Thread is not available here, need to figure out | 841 // TODO(asiva): A Thread is not available here, need to figure out |
838 // how the vm_tag (kEmbedderTagId) can be set, these tags need to | 842 // how the vm_tag (kEmbedderTagId) can be set, these tags need to |
839 // move to the OSThread structure. | 843 // move to the OSThread structure. |
840 set_user_tag(UserTags::kDefaultUserTag); | 844 set_user_tag(UserTags::kDefaultUserTag); |
841 } | 845 } |
842 | 846 |
843 #undef REUSABLE_HANDLE_SCOPE_INIT | 847 #undef REUSABLE_HANDLE_SCOPE_INIT |
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861 delete message_handler_; | 865 delete message_handler_; |
862 message_handler_ = NULL; // Fail fast if we send messages to a dead isolate. | 866 message_handler_ = NULL; // Fail fast if we send messages to a dead isolate. |
863 ASSERT(deopt_context_ == NULL); // No deopt in progress when isolate deleted. | 867 ASSERT(deopt_context_ == NULL); // No deopt in progress when isolate deleted. |
864 delete spawn_state_; | 868 delete spawn_state_; |
865 if (FLAG_support_service) { | 869 if (FLAG_support_service) { |
866 delete object_id_ring_; | 870 delete object_id_ring_; |
867 } | 871 } |
868 object_id_ring_ = NULL; | 872 object_id_ring_ = NULL; |
869 delete pause_loop_monitor_; | 873 delete pause_loop_monitor_; |
870 pause_loop_monitor_ = NULL; | 874 pause_loop_monitor_ = NULL; |
| 875 delete boxed_field_list_monitor_; |
| 876 boxed_field_list_monitor_ = NULL; |
871 ASSERT(spawn_count_ == 0); | 877 ASSERT(spawn_count_ == 0); |
872 delete spawn_count_monitor_; | 878 delete spawn_count_monitor_; |
873 if (compiler_stats_ != NULL) { | 879 if (compiler_stats_ != NULL) { |
874 delete compiler_stats_; | 880 delete compiler_stats_; |
875 compiler_stats_ = NULL; | 881 compiler_stats_ = NULL; |
876 } | 882 } |
877 delete safepoint_handler_; | 883 delete safepoint_handler_; |
878 delete thread_registry_; | 884 delete thread_registry_; |
879 } | 885 } |
880 | 886 |
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1839 reinterpret_cast<RawObject**>(&deoptimized_code_array_)); | 1845 reinterpret_cast<RawObject**>(&deoptimized_code_array_)); |
1840 | 1846 |
1841 // Visit the pending service extension calls. | 1847 // Visit the pending service extension calls. |
1842 visitor->VisitPointer( | 1848 visitor->VisitPointer( |
1843 reinterpret_cast<RawObject**>(&pending_service_extension_calls_)); | 1849 reinterpret_cast<RawObject**>(&pending_service_extension_calls_)); |
1844 | 1850 |
1845 // Visit the registered service extension handlers. | 1851 // Visit the registered service extension handlers. |
1846 visitor->VisitPointer( | 1852 visitor->VisitPointer( |
1847 reinterpret_cast<RawObject**>(®istered_service_extension_handlers_)); | 1853 reinterpret_cast<RawObject**>(®istered_service_extension_handlers_)); |
1848 | 1854 |
| 1855 // Visit the boxed_field_list. |
| 1856 // 'boxed_field_list_' access via mutator and background compilation threads |
| 1857 // is guarded with a monitor. This means that we can visit it only |
| 1858 // when at safepoint or the boxed_field_list_monitor_ lock has been taken. |
| 1859 visitor->VisitPointer(reinterpret_cast<RawObject**>(&boxed_field_list_)); |
| 1860 |
1849 // Visit objects in the debugger. | 1861 // Visit objects in the debugger. |
1850 if (FLAG_support_debugger) { | 1862 if (FLAG_support_debugger) { |
1851 debugger()->VisitObjectPointers(visitor); | 1863 debugger()->VisitObjectPointers(visitor); |
1852 } | 1864 } |
1853 | 1865 |
1854 // Visit objects that are being used for deoptimization. | 1866 // Visit objects that are being used for deoptimization. |
1855 if (deopt_context() != NULL) { | 1867 if (deopt_context() != NULL) { |
1856 deopt_context()->VisitObjectPointers(visitor); | 1868 deopt_context()->VisitObjectPointers(visitor); |
1857 } | 1869 } |
1858 | 1870 |
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2043 pending_service_extension_calls_ = value.raw(); | 2055 pending_service_extension_calls_ = value.raw(); |
2044 } | 2056 } |
2045 | 2057 |
2046 | 2058 |
2047 void Isolate::set_registered_service_extension_handlers( | 2059 void Isolate::set_registered_service_extension_handlers( |
2048 const GrowableObjectArray& value) { | 2060 const GrowableObjectArray& value) { |
2049 registered_service_extension_handlers_ = value.raw(); | 2061 registered_service_extension_handlers_ = value.raw(); |
2050 } | 2062 } |
2051 | 2063 |
2052 | 2064 |
| 2065 void Isolate::AddDeoptimizingBoxedField(const Field& field) { |
| 2066 MonitorLocker ml(boxed_field_list_monitor_); |
| 2067 if (boxed_field_list_ == GrowableObjectArray::null()) { |
| 2068 boxed_field_list_ = GrowableObjectArray::New(Heap::kOld); |
| 2069 } |
| 2070 const GrowableObjectArray& array = |
| 2071 GrowableObjectArray::Handle(boxed_field_list_); |
| 2072 array.Add(field, Heap::kOld); |
| 2073 } |
| 2074 |
| 2075 |
| 2076 RawField* Isolate::GetDeoptimizingBoxedField() { |
| 2077 MonitorLocker ml(boxed_field_list_monitor_); |
| 2078 if (boxed_field_list_ == GrowableObjectArray::null()) { |
| 2079 return Field::null(); |
| 2080 } |
| 2081 const GrowableObjectArray& array = |
| 2082 GrowableObjectArray::Handle(boxed_field_list_); |
| 2083 if (array.Length() == 0) { |
| 2084 return Field::null(); |
| 2085 } |
| 2086 return Field::RawCast(array.RemoveLast()); |
| 2087 } |
| 2088 |
| 2089 |
2053 RawObject* Isolate::InvokePendingServiceExtensionCalls() { | 2090 RawObject* Isolate::InvokePendingServiceExtensionCalls() { |
2054 if (!FLAG_support_service) { | 2091 if (!FLAG_support_service) { |
2055 return Object::null(); | 2092 return Object::null(); |
2056 } | 2093 } |
2057 GrowableObjectArray& calls = | 2094 GrowableObjectArray& calls = |
2058 GrowableObjectArray::Handle(GetAndClearPendingServiceExtensionCalls()); | 2095 GrowableObjectArray::Handle(GetAndClearPendingServiceExtensionCalls()); |
2059 if (calls.IsNull()) { | 2096 if (calls.IsNull()) { |
2060 return Object::null(); | 2097 return Object::null(); |
2061 } | 2098 } |
2062 // Grab run function. | 2099 // Grab run function. |
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2738 void IsolateSpawnState::DecrementSpawnCount() { | 2775 void IsolateSpawnState::DecrementSpawnCount() { |
2739 ASSERT(spawn_count_monitor_ != NULL); | 2776 ASSERT(spawn_count_monitor_ != NULL); |
2740 ASSERT(spawn_count_ != NULL); | 2777 ASSERT(spawn_count_ != NULL); |
2741 MonitorLocker ml(spawn_count_monitor_); | 2778 MonitorLocker ml(spawn_count_monitor_); |
2742 ASSERT(*spawn_count_ > 0); | 2779 ASSERT(*spawn_count_ > 0); |
2743 *spawn_count_ = *spawn_count_ - 1; | 2780 *spawn_count_ = *spawn_count_ - 1; |
2744 ml.Notify(); | 2781 ml.Notify(); |
2745 } | 2782 } |
2746 | 2783 |
2747 } // namespace dart | 2784 } // namespace dart |
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