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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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972 ExternalStringTableUpdaterCallback updater_func); | 972 ExternalStringTableUpdaterCallback updater_func); |
973 | 973 |
974 // Helper function that governs the promotion policy from new space to | 974 // Helper function that governs the promotion policy from new space to |
975 // old. If the object's old address lies below the new space's age | 975 // old. If the object's old address lies below the new space's age |
976 // mark or if we've already filled the bottom 1/16th of the to space, | 976 // mark or if we've already filled the bottom 1/16th of the to space, |
977 // we try to promote this object. | 977 // we try to promote this object. |
978 static inline bool ShouldBePromoted(Address old_address, int object_size); | 978 static inline bool ShouldBePromoted(Address old_address, int object_size); |
979 | 979 |
980 static int MaxObjectSizeInNewSpace() { return kMaxObjectSizeInNewSpace; } | 980 static int MaxObjectSizeInNewSpace() { return kMaxObjectSizeInNewSpace; } |
981 | 981 |
| 982 static void ClearJSFunctionResultCaches(); |
| 983 |
982 private: | 984 private: |
983 static int reserved_semispace_size_; | 985 static int reserved_semispace_size_; |
984 static int max_semispace_size_; | 986 static int max_semispace_size_; |
985 static int initial_semispace_size_; | 987 static int initial_semispace_size_; |
986 static int max_old_generation_size_; | 988 static int max_old_generation_size_; |
987 static size_t code_range_size_; | 989 static size_t code_range_size_; |
988 | 990 |
989 // For keeping track of how much data has survived | 991 // For keeping track of how much data has survived |
990 // scavenge since last new space expansion. | 992 // scavenge since last new space expansion. |
991 static int survived_since_last_expansion_; | 993 static int survived_since_last_expansion_; |
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1186 set_instanceof_cache_function(the_hole_value()); | 1188 set_instanceof_cache_function(the_hole_value()); |
1187 } | 1189 } |
1188 | 1190 |
1189 // Helper function used by CopyObject to copy a source object to an | 1191 // Helper function used by CopyObject to copy a source object to an |
1190 // allocated target object and update the forwarding pointer in the source | 1192 // allocated target object and update the forwarding pointer in the source |
1191 // object. Returns the target object. | 1193 // object. Returns the target object. |
1192 static inline HeapObject* MigrateObject(HeapObject* source, | 1194 static inline HeapObject* MigrateObject(HeapObject* source, |
1193 HeapObject* target, | 1195 HeapObject* target, |
1194 int size); | 1196 int size); |
1195 | 1197 |
1196 static void ClearJSFunctionResultCaches(); | |
1197 | |
1198 #if defined(DEBUG) || defined(ENABLE_LOGGING_AND_PROFILING) | 1198 #if defined(DEBUG) || defined(ENABLE_LOGGING_AND_PROFILING) |
1199 // Record the copy of an object in the NewSpace's statistics. | 1199 // Record the copy of an object in the NewSpace's statistics. |
1200 static void RecordCopiedObject(HeapObject* obj); | 1200 static void RecordCopiedObject(HeapObject* obj); |
1201 | 1201 |
1202 // Record statistics before and after garbage collection. | 1202 // Record statistics before and after garbage collection. |
1203 static void ReportStatisticsBeforeGC(); | 1203 static void ReportStatisticsBeforeGC(); |
1204 static void ReportStatisticsAfterGC(); | 1204 static void ReportStatisticsAfterGC(); |
1205 #endif | 1205 #endif |
1206 | 1206 |
1207 // Rebuild remembered set in an old space. | 1207 // Rebuild remembered set in an old space. |
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1835 | 1835 |
1836 // To speed up scavenge collections new space string are kept | 1836 // To speed up scavenge collections new space string are kept |
1837 // separate from old space strings. | 1837 // separate from old space strings. |
1838 static List<Object*> new_space_strings_; | 1838 static List<Object*> new_space_strings_; |
1839 static List<Object*> old_space_strings_; | 1839 static List<Object*> old_space_strings_; |
1840 }; | 1840 }; |
1841 | 1841 |
1842 } } // namespace v8::internal | 1842 } } // namespace v8::internal |
1843 | 1843 |
1844 #endif // V8_HEAP_H_ | 1844 #endif // V8_HEAP_H_ |
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