OLD | NEW |
1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
(...skipping 267 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
278 void preGC(); | 278 void preGC(); |
279 void postGC(BlinkGC::GCType); | 279 void postGC(BlinkGC::GCType); |
280 void preSweep(); | 280 void preSweep(); |
281 void completeSweep(); | 281 void completeSweep(); |
282 void postSweep(); | 282 void postSweep(); |
283 // makeConsistentForMutator() drops marks from marked objects and rebuild | 283 // makeConsistentForMutator() drops marks from marked objects and rebuild |
284 // free lists. This is called after taking a snapshot and before resuming | 284 // free lists. This is called after taking a snapshot and before resuming |
285 // the executions of mutators. | 285 // the executions of mutators. |
286 void makeConsistentForMutator(); | 286 void makeConsistentForMutator(); |
287 | 287 |
| 288 void compact(); |
| 289 |
288 // Support for disallowing allocation. Mainly used for sanity | 290 // Support for disallowing allocation. Mainly used for sanity |
289 // checks asserts. | 291 // checks asserts. |
290 bool isAllocationAllowed() const { | 292 bool isAllocationAllowed() const { |
291 return !isAtSafePoint() && !m_noAllocationCount; | 293 return !isAtSafePoint() && !m_noAllocationCount; |
292 } | 294 } |
293 void enterNoAllocationScope() { m_noAllocationCount++; } | 295 void enterNoAllocationScope() { m_noAllocationCount++; } |
294 void leaveNoAllocationScope() { m_noAllocationCount--; } | 296 void leaveNoAllocationScope() { m_noAllocationCount--; } |
295 bool isGCForbidden() const { | 297 bool isGCForbidden() const { |
296 return m_gcForbiddenCount || isMixinInConstruction(); | 298 return m_gcForbiddenCount || isMixinInConstruction(); |
297 } | 299 } |
(...skipping 17 matching lines...) Expand all Loading... |
315 MainThreadGCForbiddenScope() | 317 MainThreadGCForbiddenScope() |
316 : m_threadState(ThreadState::mainThreadState()) { | 318 : m_threadState(ThreadState::mainThreadState()) { |
317 m_threadState->enterGCForbiddenScope(); | 319 m_threadState->enterGCForbiddenScope(); |
318 } | 320 } |
319 ~MainThreadGCForbiddenScope() { m_threadState->leaveGCForbiddenScope(); } | 321 ~MainThreadGCForbiddenScope() { m_threadState->leaveGCForbiddenScope(); } |
320 | 322 |
321 private: | 323 private: |
322 ThreadState* const m_threadState; | 324 ThreadState* const m_threadState; |
323 }; | 325 }; |
324 | 326 |
| 327 class GCForbiddenScope final { |
| 328 STACK_ALLOCATED(); |
| 329 |
| 330 public: |
| 331 GCForbiddenScope(ThreadState* threadState) : m_threadState(threadState) { |
| 332 m_threadState->enterGCForbiddenScope(); |
| 333 } |
| 334 ~GCForbiddenScope() { m_threadState->leaveGCForbiddenScope(); } |
| 335 |
| 336 private: |
| 337 ThreadState* const m_threadState; |
| 338 }; |
| 339 |
325 void flushHeapDoesNotContainCacheIfNeeded(); | 340 void flushHeapDoesNotContainCacheIfNeeded(); |
326 | 341 |
327 // Safepoint related functionality. | 342 // Safepoint related functionality. |
328 // | 343 // |
329 // When a thread attempts to perform GC it needs to stop all other threads | 344 // When a thread attempts to perform GC it needs to stop all other threads |
330 // that use the heap or at least guarantee that they will not touch any | 345 // that use the heap or at least guarantee that they will not touch any |
331 // heap allocated object until GC is complete. | 346 // heap allocated object until GC is complete. |
332 // | 347 // |
333 // We say that a thread is at a safepoint if this thread is guaranteed to | 348 // We say that a thread is at a safepoint if this thread is guaranteed to |
334 // not touch any heap allocated object or any heap related functionality until | 349 // not touch any heap allocated object or any heap related functionality until |
(...skipping 219 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
554 | 569 |
555 void resetHeapCounters(); | 570 void resetHeapCounters(); |
556 void increaseAllocatedObjectSize(size_t); | 571 void increaseAllocatedObjectSize(size_t); |
557 void decreaseAllocatedObjectSize(size_t); | 572 void decreaseAllocatedObjectSize(size_t); |
558 void increaseMarkedObjectSize(size_t); | 573 void increaseMarkedObjectSize(size_t); |
559 | 574 |
560 void callThreadShutdownHooks(); | 575 void callThreadShutdownHooks(); |
561 | 576 |
562 v8::Isolate* isolate() const { return m_isolate; } | 577 v8::Isolate* isolate() const { return m_isolate; } |
563 | 578 |
| 579 BlinkGC::StackState stackState() const { return m_stackState; } |
| 580 |
564 void collectGarbage(BlinkGC::StackState, BlinkGC::GCType, BlinkGC::GCReason); | 581 void collectGarbage(BlinkGC::StackState, BlinkGC::GCType, BlinkGC::GCReason); |
565 void collectGarbageForTerminatingThread(); | 582 void collectGarbageForTerminatingThread(); |
566 void collectAllGarbage(); | 583 void collectAllGarbage(); |
567 | 584 |
| 585 static const char* gcReasonString(BlinkGC::GCReason); |
| 586 |
568 private: | 587 private: |
569 enum SnapshotType { HeapSnapshot, FreelistSnapshot }; | 588 enum SnapshotType { HeapSnapshot, FreelistSnapshot }; |
570 | 589 |
571 explicit ThreadState(BlinkGC::ThreadHeapMode); | 590 explicit ThreadState(BlinkGC::ThreadHeapMode); |
572 ~ThreadState(); | 591 ~ThreadState(); |
573 | 592 |
574 NO_SANITIZE_ADDRESS void copyStackUntilSafePointScope(); | 593 NO_SANITIZE_ADDRESS void copyStackUntilSafePointScope(); |
575 void clearSafePointScopeMarker() { | 594 void clearSafePointScopeMarker() { |
576 m_safePointStackCopy.clear(); | 595 m_safePointStackCopy.clear(); |
577 m_safePointScopeMarker = nullptr; | 596 m_safePointScopeMarker = nullptr; |
(...skipping 174 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
752 class ThreadStateFor<AnyThread> { | 771 class ThreadStateFor<AnyThread> { |
753 STATIC_ONLY(ThreadStateFor); | 772 STATIC_ONLY(ThreadStateFor); |
754 | 773 |
755 public: | 774 public: |
756 static ThreadState* state() { return ThreadState::current(); } | 775 static ThreadState* state() { return ThreadState::current(); } |
757 }; | 776 }; |
758 | 777 |
759 } // namespace blink | 778 } // namespace blink |
760 | 779 |
761 #endif // ThreadState_h | 780 #endif // ThreadState_h |
OLD | NEW |