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Issue 4295004: Attempt to collect more garbage before panicking with out of memory. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Addressing various English usage concerns Created 10 years, 1 month ago
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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. 1 // Copyright 2006-2008 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
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323 if (first_word.IsForwardingAddress()) { 323 if (first_word.IsForwardingAddress()) {
324 *p = first_word.ToForwardingAddress(); 324 *p = first_word.ToForwardingAddress();
325 return; 325 return;
326 } 326 }
327 327
328 // Call the slow part of scavenge object. 328 // Call the slow part of scavenge object.
329 return ScavengeObjectSlow(p, object); 329 return ScavengeObjectSlow(p, object);
330 } 330 }
331 331
332 332
333 bool Heap::CollectGarbage(AllocationSpace space) {
334 return CollectGarbage(space, SelectGarbageCollector(space));
335 }
336
337
333 MaybeObject* Heap::PrepareForCompare(String* str) { 338 MaybeObject* Heap::PrepareForCompare(String* str) {
334 // Always flatten small strings and force flattening of long strings 339 // Always flatten small strings and force flattening of long strings
335 // after we have accumulated a certain amount we failed to flatten. 340 // after we have accumulated a certain amount we failed to flatten.
336 static const int kMaxAlwaysFlattenLength = 32; 341 static const int kMaxAlwaysFlattenLength = 32;
337 static const int kFlattenLongThreshold = 16*KB; 342 static const int kFlattenLongThreshold = 16*KB;
338 343
339 const int length = str->length(); 344 const int length = str->length();
340 MaybeObject* obj = str->TryFlatten(); 345 MaybeObject* obj = str->TryFlatten();
341 if (length <= kMaxAlwaysFlattenLength || 346 if (length <= kMaxAlwaysFlattenLength ||
342 unflattened_strings_length_ >= kFlattenLongThreshold) { 347 unflattened_strings_length_ >= kFlattenLongThreshold) {
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406 if (!__maybe_object__->IsRetryAfterGC()) RETURN_EMPTY; \ 411 if (!__maybe_object__->IsRetryAfterGC()) RETURN_EMPTY; \
407 Heap::CollectGarbage(Failure::cast(__maybe_object__)-> \ 412 Heap::CollectGarbage(Failure::cast(__maybe_object__)-> \
408 allocation_space()); \ 413 allocation_space()); \
409 __maybe_object__ = FUNCTION_CALL; \ 414 __maybe_object__ = FUNCTION_CALL; \
410 if (__maybe_object__->ToObject(&__object__)) RETURN_VALUE; \ 415 if (__maybe_object__->ToObject(&__object__)) RETURN_VALUE; \
411 if (__maybe_object__->IsOutOfMemory()) { \ 416 if (__maybe_object__->IsOutOfMemory()) { \
412 v8::internal::V8::FatalProcessOutOfMemory("CALL_AND_RETRY_1", true);\ 417 v8::internal::V8::FatalProcessOutOfMemory("CALL_AND_RETRY_1", true);\
413 } \ 418 } \
414 if (!__maybe_object__->IsRetryAfterGC()) RETURN_EMPTY; \ 419 if (!__maybe_object__->IsRetryAfterGC()) RETURN_EMPTY; \
415 Counters::gc_last_resort_from_handles.Increment(); \ 420 Counters::gc_last_resort_from_handles.Increment(); \
416 Heap::CollectAllGarbage(false); \ 421 Heap::CollectAllAvailableGarbage(); \
417 { \ 422 { \
418 AlwaysAllocateScope __scope__; \ 423 AlwaysAllocateScope __scope__; \
419 __maybe_object__ = FUNCTION_CALL; \ 424 __maybe_object__ = FUNCTION_CALL; \
420 } \ 425 } \
421 if (__maybe_object__->ToObject(&__object__)) RETURN_VALUE; \ 426 if (__maybe_object__->ToObject(&__object__)) RETURN_VALUE; \
422 if (__maybe_object__->IsOutOfMemory() || \ 427 if (__maybe_object__->IsOutOfMemory() || \
423 __maybe_object__->IsRetryAfterGC()) { \ 428 __maybe_object__->IsRetryAfterGC()) { \
424 /* TODO(1181417): Fix this. */ \ 429 /* TODO(1181417): Fix this. */ \
425 v8::internal::V8::FatalProcessOutOfMemory("CALL_AND_RETRY_2", true);\ 430 v8::internal::V8::FatalProcessOutOfMemory("CALL_AND_RETRY_2", true);\
426 } \ 431 } \
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495 500
496 501
497 void ExternalStringTable::ShrinkNewStrings(int position) { 502 void ExternalStringTable::ShrinkNewStrings(int position) {
498 new_space_strings_.Rewind(position); 503 new_space_strings_.Rewind(position);
499 Verify(); 504 Verify();
500 } 505 }
501 506
502 } } // namespace v8::internal 507 } } // namespace v8::internal
503 508
504 #endif // V8_HEAP_INL_H_ 509 #endif // V8_HEAP_INL_H_
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