OLD | NEW |
1 // Copyright 2008 the V8 project authors. All rights reserved. | 1 // Copyright 2008 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
(...skipping 320 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
331 // Threading support for handle data. | 331 // Threading support for handle data. |
332 static int ArchiveSpacePerThread(); | 332 static int ArchiveSpacePerThread(); |
333 static char* RestoreThread(char* from); | 333 static char* RestoreThread(char* from); |
334 static char* ArchiveThread(char* to); | 334 static char* ArchiveThread(char* to); |
335 | 335 |
336 // Garbage collection support. | 336 // Garbage collection support. |
337 static void Iterate(v8::internal::ObjectVisitor* v); | 337 static void Iterate(v8::internal::ObjectVisitor* v); |
338 static char* Iterate(v8::internal::ObjectVisitor* v, char* data); | 338 static char* Iterate(v8::internal::ObjectVisitor* v, char* data); |
339 | 339 |
340 | 340 |
341 inline void** GetSpareOrNewBlock(); | 341 inline internal::Object** GetSpareOrNewBlock(); |
342 inline void DeleteExtensions(int extensions); | 342 inline void DeleteExtensions(int extensions); |
343 | 343 |
344 inline void IncrementCallDepth() {call_depth++;} | 344 inline void IncrementCallDepth() {call_depth++;} |
345 inline void DecrementCallDepth() {call_depth--;} | 345 inline void DecrementCallDepth() {call_depth--;} |
346 inline bool CallDepthIsZero() { return call_depth == 0; } | 346 inline bool CallDepthIsZero() { return call_depth == 0; } |
347 | 347 |
348 inline void EnterContext(Handle<Object> context); | 348 inline void EnterContext(Handle<Object> context); |
349 inline bool LeaveLastContext(); | 349 inline bool LeaveLastContext(); |
350 | 350 |
351 // Returns the last entered context or an empty handle if no | 351 // Returns the last entered context or an empty handle if no |
352 // contexts have been entered. | 352 // contexts have been entered. |
353 inline Handle<Object> LastEnteredContext(); | 353 inline Handle<Object> LastEnteredContext(); |
354 | 354 |
355 inline void SaveContext(Handle<Object> context); | 355 inline void SaveContext(Handle<Object> context); |
356 inline Handle<Object> RestoreContext(); | 356 inline Handle<Object> RestoreContext(); |
357 inline bool HasSavedContexts(); | 357 inline bool HasSavedContexts(); |
358 | 358 |
359 inline List<void**>* Blocks() { return &blocks; } | 359 inline List<internal::Object**>* Blocks() { return &blocks; } |
360 | 360 |
361 inline bool IgnoreOutOfMemory() { return ignore_out_of_memory; } | 361 inline bool IgnoreOutOfMemory() { return ignore_out_of_memory; } |
362 inline void SetIgnoreOutOfMemory(bool value) { ignore_out_of_memory = value; } | 362 inline void SetIgnoreOutOfMemory(bool value) { ignore_out_of_memory = value; } |
363 | 363 |
364 private: | 364 private: |
365 List<void**> blocks; | 365 List<internal::Object**> blocks; |
366 Object** spare; | 366 Object** spare; |
367 int call_depth; | 367 int call_depth; |
368 // Used as a stack to keep track of entered contexts. | 368 // Used as a stack to keep track of entered contexts. |
369 List<Handle<Object> > entered_contexts_; | 369 List<Handle<Object> > entered_contexts_; |
370 // Used as a stack to keep track of saved contexts. | 370 // Used as a stack to keep track of saved contexts. |
371 List<Handle<Object> > saved_contexts_; | 371 List<Handle<Object> > saved_contexts_; |
372 bool ignore_out_of_memory; | 372 bool ignore_out_of_memory; |
373 // This is only used for threading support. | 373 // This is only used for threading support. |
374 v8::ImplementationUtilities::HandleScopeData handle_scope_data_; | 374 v8::ImplementationUtilities::HandleScopeData handle_scope_data_; |
375 | 375 |
376 static void Iterate(ObjectVisitor* v, | 376 static void Iterate(ObjectVisitor* v, |
377 List<void**>* blocks, | 377 List<internal::Object**>* blocks, |
378 v8::ImplementationUtilities::HandleScopeData* handle_data); | 378 v8::ImplementationUtilities::HandleScopeData* handle_data); |
379 char* RestoreThreadHelper(char* from); | 379 char* RestoreThreadHelper(char* from); |
380 char* ArchiveThreadHelper(char* to); | 380 char* ArchiveThreadHelper(char* to); |
381 | 381 |
382 DISALLOW_COPY_AND_ASSIGN(HandleScopeImplementer); | 382 DISALLOW_COPY_AND_ASSIGN(HandleScopeImplementer); |
383 }; | 383 }; |
384 | 384 |
385 | 385 |
386 static const int kHandleBlockSize = v8::internal::KB - 2; // fit in one page | 386 static const int kHandleBlockSize = v8::internal::KB - 2; // fit in one page |
387 | 387 |
(...skipping 25 matching lines...) Expand all Loading... |
413 } | 413 } |
414 | 414 |
415 | 415 |
416 Handle<Object> HandleScopeImplementer::LastEnteredContext() { | 416 Handle<Object> HandleScopeImplementer::LastEnteredContext() { |
417 if (entered_contexts_.is_empty()) return Handle<Object>::null(); | 417 if (entered_contexts_.is_empty()) return Handle<Object>::null(); |
418 return entered_contexts_.last(); | 418 return entered_contexts_.last(); |
419 } | 419 } |
420 | 420 |
421 | 421 |
422 // If there's a spare block, use it for growing the current scope. | 422 // If there's a spare block, use it for growing the current scope. |
423 void** HandleScopeImplementer::GetSpareOrNewBlock() { | 423 internal::Object** HandleScopeImplementer::GetSpareOrNewBlock() { |
424 void** block = (spare != NULL) ? | 424 internal::Object** block = (spare != NULL) ? |
425 reinterpret_cast<void**>(spare) : | 425 spare : |
426 NewArray<void*>(kHandleBlockSize); | 426 NewArray<internal::Object*>(kHandleBlockSize); |
427 spare = NULL; | 427 spare = NULL; |
428 return block; | 428 return block; |
429 } | 429 } |
430 | 430 |
431 | 431 |
432 void HandleScopeImplementer::DeleteExtensions(int extensions) { | 432 void HandleScopeImplementer::DeleteExtensions(int extensions) { |
433 if (spare != NULL) { | 433 if (spare != NULL) { |
434 DeleteArray(spare); | 434 DeleteArray(spare); |
435 spare = NULL; | 435 spare = NULL; |
436 } | 436 } |
437 for (int i = extensions; i > 1; --i) { | 437 for (int i = extensions; i > 1; --i) { |
438 void** block = blocks.RemoveLast(); | 438 internal::Object** block = blocks.RemoveLast(); |
439 #ifdef DEBUG | 439 #ifdef DEBUG |
440 v8::ImplementationUtilities::ZapHandleRange(block, | 440 v8::ImplementationUtilities::ZapHandleRange(block, |
441 &block[kHandleBlockSize]); | 441 &block[kHandleBlockSize]); |
442 #endif | 442 #endif |
443 DeleteArray(block); | 443 DeleteArray(block); |
444 } | 444 } |
445 spare = reinterpret_cast<Object**>(blocks.RemoveLast()); | 445 spare = blocks.RemoveLast(); |
446 #ifdef DEBUG | 446 #ifdef DEBUG |
447 v8::ImplementationUtilities::ZapHandleRange( | 447 v8::ImplementationUtilities::ZapHandleRange( |
448 reinterpret_cast<void**>(spare), | 448 spare, |
449 reinterpret_cast<void**>(&spare[kHandleBlockSize])); | 449 &spare[kHandleBlockSize]); |
450 #endif | 450 #endif |
451 } | 451 } |
452 | 452 |
453 } } // namespace v8::internal | 453 } } // namespace v8::internal |
454 | 454 |
455 #endif // V8_API_H_ | 455 #endif // V8_API_H_ |
OLD | NEW |