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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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149 V(ExternalArray, empty_external_short_array, EmptyExternalShortArray) \ | 149 V(ExternalArray, empty_external_short_array, EmptyExternalShortArray) \ |
150 V(ExternalArray, empty_external_unsigned_short_array, \ | 150 V(ExternalArray, empty_external_unsigned_short_array, \ |
151 EmptyExternalUnsignedShortArray) \ | 151 EmptyExternalUnsignedShortArray) \ |
152 V(ExternalArray, empty_external_int_array, EmptyExternalIntArray) \ | 152 V(ExternalArray, empty_external_int_array, EmptyExternalIntArray) \ |
153 V(ExternalArray, empty_external_unsigned_int_array, \ | 153 V(ExternalArray, empty_external_unsigned_int_array, \ |
154 EmptyExternalUnsignedIntArray) \ | 154 EmptyExternalUnsignedIntArray) \ |
155 V(ExternalArray, empty_external_float_array, EmptyExternalFloatArray) \ | 155 V(ExternalArray, empty_external_float_array, EmptyExternalFloatArray) \ |
156 V(ExternalArray, empty_external_double_array, EmptyExternalDoubleArray) \ | 156 V(ExternalArray, empty_external_double_array, EmptyExternalDoubleArray) \ |
157 V(ExternalArray, empty_external_pixel_array, \ | 157 V(ExternalArray, empty_external_pixel_array, \ |
158 EmptyExternalPixelArray) \ | 158 EmptyExternalPixelArray) \ |
159 V(Map, fixed_uint8_array_map, FixedUint8ArrayMap) \ | |
160 V(Map, fixed_int8_array_map, FixedInt8ArrayMap) \ | |
161 V(Map, fixed_uint16_array_map, FixedUint16ArrayMap) \ | |
162 V(Map, fixed_int16_array_map, FixedInt16ArrayMap) \ | |
163 V(Map, fixed_uint32_array_map, FixedUint32ArrayMap) \ | |
164 V(Map, fixed_int32_array_map, FixedInt32ArrayMap) \ | |
165 V(Map, fixed_float32_array_map, FixedFloat32ArrayMap) \ | |
166 V(Map, fixed_float64_array_map, FixedFloat64ArrayMap) \ | |
167 V(Map, fixed_uint8_clamped_array_map, FixedUint8ClampedArrayMap) \ | |
168 V(Map, non_strict_arguments_elements_map, NonStrictArgumentsElementsMap) \ | 159 V(Map, non_strict_arguments_elements_map, NonStrictArgumentsElementsMap) \ |
169 V(Map, function_context_map, FunctionContextMap) \ | 160 V(Map, function_context_map, FunctionContextMap) \ |
170 V(Map, catch_context_map, CatchContextMap) \ | 161 V(Map, catch_context_map, CatchContextMap) \ |
171 V(Map, with_context_map, WithContextMap) \ | 162 V(Map, with_context_map, WithContextMap) \ |
172 V(Map, block_context_map, BlockContextMap) \ | 163 V(Map, block_context_map, BlockContextMap) \ |
173 V(Map, module_context_map, ModuleContextMap) \ | 164 V(Map, module_context_map, ModuleContextMap) \ |
174 V(Map, global_context_map, GlobalContextMap) \ | 165 V(Map, global_context_map, GlobalContextMap) \ |
175 V(Map, oddball_map, OddballMap) \ | 166 V(Map, oddball_map, OddballMap) \ |
176 V(Map, message_object_map, JSMessageObjectMap) \ | 167 V(Map, message_object_map, JSMessageObjectMap) \ |
177 V(Map, foreign_map, ForeignMap) \ | 168 V(Map, foreign_map, ForeignMap) \ |
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877 // Allocates an external array of the specified length and type. | 868 // Allocates an external array of the specified length and type. |
878 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | 869 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation |
879 // failed. | 870 // failed. |
880 // Please note this does not perform a garbage collection. | 871 // Please note this does not perform a garbage collection. |
881 MUST_USE_RESULT MaybeObject* AllocateExternalArray( | 872 MUST_USE_RESULT MaybeObject* AllocateExternalArray( |
882 int length, | 873 int length, |
883 ExternalArrayType array_type, | 874 ExternalArrayType array_type, |
884 void* external_pointer, | 875 void* external_pointer, |
885 PretenureFlag pretenure); | 876 PretenureFlag pretenure); |
886 | 877 |
887 // Allocates a fixed typed array of the specified length and type. | |
888 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | |
889 // failed. | |
890 // Please note this does not perform a garbage collection. | |
891 MUST_USE_RESULT MaybeObject* AllocateFixedTypedArray( | |
892 int length, | |
893 ExternalArrayType array_type, | |
894 PretenureFlag pretenure); | |
895 | |
896 // Allocate a symbol in old space. | 878 // Allocate a symbol in old space. |
897 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | 879 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation |
898 // failed. | 880 // failed. |
899 // Please note this does not perform a garbage collection. | 881 // Please note this does not perform a garbage collection. |
900 MUST_USE_RESULT MaybeObject* AllocateSymbol(); | 882 MUST_USE_RESULT MaybeObject* AllocateSymbol(); |
901 MUST_USE_RESULT MaybeObject* AllocatePrivateSymbol(); | 883 MUST_USE_RESULT MaybeObject* AllocatePrivateSymbol(); |
902 | 884 |
903 // Allocate a tenured AllocationSite. It's payload is null | 885 // Allocate a tenured AllocationSite. It's payload is null |
904 MUST_USE_RESULT MaybeObject* AllocateAllocationSite(); | 886 MUST_USE_RESULT MaybeObject* AllocateAllocationSite(); |
905 | 887 |
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1572 static bool RootCanBeWrittenAfterInitialization(RootListIndex root_index); | 1554 static bool RootCanBeWrittenAfterInitialization(RootListIndex root_index); |
1573 // Generated code can treat direct references to this root as constant. | 1555 // Generated code can treat direct references to this root as constant. |
1574 bool RootCanBeTreatedAsConstant(RootListIndex root_index); | 1556 bool RootCanBeTreatedAsConstant(RootListIndex root_index); |
1575 | 1557 |
1576 MUST_USE_RESULT MaybeObject* NumberToString( | 1558 MUST_USE_RESULT MaybeObject* NumberToString( |
1577 Object* number, bool check_number_string_cache = true, | 1559 Object* number, bool check_number_string_cache = true, |
1578 PretenureFlag pretenure = NOT_TENURED); | 1560 PretenureFlag pretenure = NOT_TENURED); |
1579 MUST_USE_RESULT MaybeObject* Uint32ToString( | 1561 MUST_USE_RESULT MaybeObject* Uint32ToString( |
1580 uint32_t value, bool check_number_string_cache = true); | 1562 uint32_t value, bool check_number_string_cache = true); |
1581 | 1563 |
1582 Map* MapForFixedTypedArray(ExternalArrayType array_type); | |
1583 RootListIndex RootIndexForFixedTypedArray( | |
1584 ExternalArrayType array_type); | |
1585 | |
1586 Map* MapForExternalArrayType(ExternalArrayType array_type); | 1564 Map* MapForExternalArrayType(ExternalArrayType array_type); |
1587 RootListIndex RootIndexForExternalArrayType( | 1565 RootListIndex RootIndexForExternalArrayType( |
1588 ExternalArrayType array_type); | 1566 ExternalArrayType array_type); |
1589 | 1567 |
1590 RootListIndex RootIndexForEmptyExternalArray(ElementsKind kind); | 1568 RootListIndex RootIndexForEmptyExternalArray(ElementsKind kind); |
1591 ExternalArray* EmptyExternalArrayForMap(Map* map); | 1569 ExternalArray* EmptyExternalArrayForMap(Map* map); |
1592 | 1570 |
1593 void RecordStats(HeapStats* stats, bool take_snapshot = false); | 1571 void RecordStats(HeapStats* stats, bool take_snapshot = false); |
1594 | 1572 |
1595 // Copy block of memory from src to dst. Size of block should be aligned | 1573 // Copy block of memory from src to dst. Size of block should be aligned |
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1858 MaybeObject* AddWeakObjectToCodeDependency(Object* obj, DependentCode* dep); | 1836 MaybeObject* AddWeakObjectToCodeDependency(Object* obj, DependentCode* dep); |
1859 | 1837 |
1860 DependentCode* LookupWeakObjectToCodeDependency(Object* obj); | 1838 DependentCode* LookupWeakObjectToCodeDependency(Object* obj); |
1861 | 1839 |
1862 void InitializeWeakObjectToCodeTable() { | 1840 void InitializeWeakObjectToCodeTable() { |
1863 set_weak_object_to_code_table(undefined_value()); | 1841 set_weak_object_to_code_table(undefined_value()); |
1864 } | 1842 } |
1865 | 1843 |
1866 void EnsureWeakObjectToCodeTable(); | 1844 void EnsureWeakObjectToCodeTable(); |
1867 | 1845 |
1868 static void FatalProcessOutOfMemory(const char* location, | |
1869 bool take_snapshot = false); | |
1870 | |
1871 private: | 1846 private: |
1872 Heap(); | 1847 Heap(); |
1873 | 1848 |
1874 // This can be calculated directly from a pointer to the heap; however, it is | 1849 // This can be calculated directly from a pointer to the heap; however, it is |
1875 // more expedient to get at the isolate directly from within Heap methods. | 1850 // more expedient to get at the isolate directly from within Heap methods. |
1876 Isolate* isolate_; | 1851 Isolate* isolate_; |
1877 | 1852 |
1878 Object* roots_[kRootListLength]; | 1853 Object* roots_[kRootListLength]; |
1879 | 1854 |
1880 intptr_t code_range_size_; | 1855 intptr_t code_range_size_; |
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3043 DisallowHeapAllocation no_allocation; // i.e. no gc allowed. | 3018 DisallowHeapAllocation no_allocation; // i.e. no gc allowed. |
3044 | 3019 |
3045 private: | 3020 private: |
3046 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); | 3021 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); |
3047 }; | 3022 }; |
3048 #endif // DEBUG | 3023 #endif // DEBUG |
3049 | 3024 |
3050 } } // namespace v8::internal | 3025 } } // namespace v8::internal |
3051 | 3026 |
3052 #endif // V8_HEAP_H_ | 3027 #endif // V8_HEAP_H_ |
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