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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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683 | 683 |
684 // Utility to invoke the scavenger. This is needed in test code to | 684 // Utility to invoke the scavenger. This is needed in test code to |
685 // ensure correct callback for weak global handles. | 685 // ensure correct callback for weak global handles. |
686 static void PerformScavenge(); | 686 static void PerformScavenge(); |
687 | 687 |
688 #ifdef DEBUG | 688 #ifdef DEBUG |
689 // Utility used with flag gc-greedy. | 689 // Utility used with flag gc-greedy. |
690 static bool GarbageCollectionGreedyCheck(); | 690 static bool GarbageCollectionGreedyCheck(); |
691 #endif | 691 #endif |
692 | 692 |
693 static void SetExternalStringDiposeCallback( | |
694 ExternalStringDiposeCallback callback) { | |
695 external_string_dispose_callback_ = callback; | |
696 } | |
697 | |
698 static void AddGCPrologueCallback( | 693 static void AddGCPrologueCallback( |
699 GCEpilogueCallback callback, GCType gc_type_filter); | 694 GCEpilogueCallback callback, GCType gc_type_filter); |
700 static void RemoveGCPrologueCallback(GCEpilogueCallback callback); | 695 static void RemoveGCPrologueCallback(GCEpilogueCallback callback); |
701 | 696 |
702 static void AddGCEpilogueCallback( | 697 static void AddGCEpilogueCallback( |
703 GCEpilogueCallback callback, GCType gc_type_filter); | 698 GCEpilogueCallback callback, GCType gc_type_filter); |
704 static void RemoveGCEpilogueCallback(GCEpilogueCallback callback); | 699 static void RemoveGCEpilogueCallback(GCEpilogueCallback callback); |
705 | 700 |
706 static void SetGlobalGCPrologueCallback(GCCallback callback) { | 701 static void SetGlobalGCPrologueCallback(GCCallback callback) { |
707 ASSERT((callback == NULL) ^ (global_gc_prologue_callback_ == NULL)); | 702 ASSERT((callback == NULL) ^ (global_gc_prologue_callback_ == NULL)); |
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1136 }; | 1131 }; |
1137 | 1132 |
1138 static const StringTypeTable string_type_table[]; | 1133 static const StringTypeTable string_type_table[]; |
1139 static const ConstantSymbolTable constant_symbol_table[]; | 1134 static const ConstantSymbolTable constant_symbol_table[]; |
1140 static const StructTable struct_table[]; | 1135 static const StructTable struct_table[]; |
1141 | 1136 |
1142 // The special hidden symbol which is an empty string, but does not match | 1137 // The special hidden symbol which is an empty string, but does not match |
1143 // any string when looked up in properties. | 1138 // any string when looked up in properties. |
1144 static String* hidden_symbol_; | 1139 static String* hidden_symbol_; |
1145 | 1140 |
1146 static ExternalStringDiposeCallback | |
1147 external_string_dispose_callback_; | |
1148 | |
1149 // GC callback function, called before and after mark-compact GC. | 1141 // GC callback function, called before and after mark-compact GC. |
1150 // Allocations in the callback function are disallowed. | 1142 // Allocations in the callback function are disallowed. |
1151 struct GCPrologueCallbackPair { | 1143 struct GCPrologueCallbackPair { |
1152 GCPrologueCallbackPair(GCPrologueCallback callback, GCType gc_type) | 1144 GCPrologueCallbackPair(GCPrologueCallback callback, GCType gc_type) |
1153 : callback(callback), gc_type(gc_type) { | 1145 : callback(callback), gc_type(gc_type) { |
1154 } | 1146 } |
1155 bool operator==(const GCPrologueCallbackPair& pair) const { | 1147 bool operator==(const GCPrologueCallbackPair& pair) const { |
1156 return pair.callback == callback; | 1148 return pair.callback == callback; |
1157 } | 1149 } |
1158 GCPrologueCallback callback; | 1150 GCPrologueCallback callback; |
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1936 | 1928 |
1937 // To speed up scavenge collections new space string are kept | 1929 // To speed up scavenge collections new space string are kept |
1938 // separate from old space strings. | 1930 // separate from old space strings. |
1939 static List<Object*> new_space_strings_; | 1931 static List<Object*> new_space_strings_; |
1940 static List<Object*> old_space_strings_; | 1932 static List<Object*> old_space_strings_; |
1941 }; | 1933 }; |
1942 | 1934 |
1943 } } // namespace v8::internal | 1935 } } // namespace v8::internal |
1944 | 1936 |
1945 #endif // V8_HEAP_H_ | 1937 #endif // V8_HEAP_H_ |
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