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1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2016, 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/dart_api_state.h" | 5 #include "vm/dart_api_state.h" |
6 | 6 |
7 #include "platform/assert.h" | 7 #include "platform/assert.h" |
8 #include "platform/utils.h" | 8 #include "platform/utils.h" |
9 #include "vm/heap.h" | 9 #include "vm/heap.h" |
10 #include "vm/isolate.h" | 10 #include "vm/isolate.h" |
11 #include "vm/lockers.h" | 11 #include "vm/lockers.h" |
12 #include "vm/thread.h" | 12 #include "vm/thread.h" |
13 #include "vm/timeline.h" | 13 #include "vm/timeline.h" |
14 | 14 |
15 namespace dart { | 15 namespace dart { |
16 | 16 |
17 BackgroundFinalizer::BackgroundFinalizer(Isolate* isolate, | 17 BackgroundFinalizer::BackgroundFinalizer(Isolate* isolate, |
18 FinalizationQueue* queue) : | 18 FinalizationQueue* queue) |
19 isolate_(isolate), | 19 : isolate_(isolate), queue_(queue) { |
20 queue_(queue) { | |
21 ASSERT(FLAG_background_finalization); | 20 ASSERT(FLAG_background_finalization); |
22 PageSpace* old_space = isolate->heap()->old_space(); | 21 PageSpace* old_space = isolate->heap()->old_space(); |
23 MonitorLocker ml(old_space->tasks_lock()); | 22 MonitorLocker ml(old_space->tasks_lock()); |
24 old_space->set_tasks(old_space->tasks() + 1); | 23 old_space->set_tasks(old_space->tasks() + 1); |
25 } | 24 } |
26 | 25 |
27 | 26 |
28 void BackgroundFinalizer::Run() { | 27 void BackgroundFinalizer::Run() { |
29 bool result = Thread::EnterIsolateAsHelper(isolate_, | 28 bool result = Thread::EnterIsolateAsHelper(isolate_, Thread::kFinalizerTask); |
30 Thread::kFinalizerTask); | |
31 ASSERT(result); | 29 ASSERT(result); |
32 | 30 |
33 { | 31 { |
34 Thread* thread = Thread::Current(); | 32 Thread* thread = Thread::Current(); |
35 TIMELINE_FUNCTION_GC_DURATION(thread, "BackgroundFinalization"); | 33 TIMELINE_FUNCTION_GC_DURATION(thread, "BackgroundFinalization"); |
36 TransitionVMToNative transition(thread); | 34 TransitionVMToNative transition(thread); |
37 for (intptr_t i = 0; i < queue_->length(); i++) { | 35 for (intptr_t i = 0; i < queue_->length(); i++) { |
38 FinalizablePersistentHandle* handle = (*queue_)[i]; | 36 FinalizablePersistentHandle* handle = (*queue_)[i]; |
39 FinalizablePersistentHandle::Finalize(isolate_, handle); | 37 FinalizablePersistentHandle::Finalize(isolate_, handle); |
40 } | 38 } |
41 delete queue_; | 39 delete queue_; |
42 } | 40 } |
43 | 41 |
44 // Exit isolate cleanly *before* notifying it, to avoid shutdown race. | 42 // Exit isolate cleanly *before* notifying it, to avoid shutdown race. |
45 Thread::ExitIsolateAsHelper(); | 43 Thread::ExitIsolateAsHelper(); |
46 | 44 |
47 { | 45 { |
48 PageSpace* old_space = isolate_->heap()->old_space(); | 46 PageSpace* old_space = isolate_->heap()->old_space(); |
49 MonitorLocker ml(old_space->tasks_lock()); | 47 MonitorLocker ml(old_space->tasks_lock()); |
50 old_space->set_tasks(old_space->tasks() - 1); | 48 old_space->set_tasks(old_space->tasks() - 1); |
51 ml.NotifyAll(); | 49 ml.NotifyAll(); |
52 } | 50 } |
53 } | 51 } |
54 | 52 |
55 } // namespace dart | 53 } // namespace dart |
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