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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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88 // Put entry into weak set. | 88 // Put entry into weak set. |
89 { | 89 { |
90 HandleScope scope(isolate); | 90 HandleScope scope(isolate); |
91 Handle<Smi> smi(Smi::FromInt(23), isolate); | 91 Handle<Smi> smi(Smi::FromInt(23), isolate); |
92 int32_t hash = Object::GetOrCreateHash(isolate, key)->value(); | 92 int32_t hash = Object::GetOrCreateHash(isolate, key)->value(); |
93 JSWeakCollection::Set(weakset, key, smi, hash); | 93 JSWeakCollection::Set(weakset, key, smi, hash); |
94 } | 94 } |
95 CHECK_EQ(1, ObjectHashTable::cast(weakset->table())->NumberOfElements()); | 95 CHECK_EQ(1, ObjectHashTable::cast(weakset->table())->NumberOfElements()); |
96 | 96 |
97 // Force a full GC. | 97 // Force a full GC. |
98 heap->CollectAllGarbage("WeakSet_Weakness", Heap::kNoGCFlags); | 98 heap->CollectAllGarbage(false); |
99 CHECK_EQ(0, NumberOfWeakCalls); | 99 CHECK_EQ(0, NumberOfWeakCalls); |
100 CHECK_EQ(1, ObjectHashTable::cast(weakset->table())->NumberOfElements()); | 100 CHECK_EQ(1, ObjectHashTable::cast(weakset->table())->NumberOfElements()); |
101 CHECK_EQ( | 101 CHECK_EQ( |
102 0, ObjectHashTable::cast(weakset->table())->NumberOfDeletedElements()); | 102 0, ObjectHashTable::cast(weakset->table())->NumberOfDeletedElements()); |
103 | 103 |
104 // Make the global reference to the key weak. | 104 // Make the global reference to the key weak. |
105 { | 105 { |
106 HandleScope scope(isolate); | 106 HandleScope scope(isolate); |
107 std::pair<Handle<Object>*, int> handle_and_id(&key, 1234); | 107 std::pair<Handle<Object>*, int> handle_and_id(&key, 1234); |
108 GlobalHandles::MakeWeak(key.location(), | 108 GlobalHandles::MakeWeak(key.location(), |
109 reinterpret_cast<void*>(&handle_and_id), | 109 reinterpret_cast<void*>(&handle_and_id), |
110 &WeakPointerCallback); | 110 &WeakPointerCallback); |
111 } | 111 } |
112 CHECK(global_handles->IsWeak(key.location())); | 112 CHECK(global_handles->IsWeak(key.location())); |
113 | 113 |
114 // Force a full GC. | 114 // Force a full GC. |
115 // Perform two consecutive GCs because the first one will only clear | 115 // Perform two consecutive GCs because the first one will only clear |
116 // weak references whereas the second one will also clear weak sets. | 116 // weak references whereas the second one will also clear weak sets. |
117 heap->CollectAllGarbage("WeakSet_Weakness", Heap::kNoGCFlags); | 117 heap->CollectAllGarbage(false); |
118 CHECK_EQ(1, NumberOfWeakCalls); | 118 CHECK_EQ(1, NumberOfWeakCalls); |
119 CHECK_EQ(1, ObjectHashTable::cast(weakset->table())->NumberOfElements()); | 119 CHECK_EQ(1, ObjectHashTable::cast(weakset->table())->NumberOfElements()); |
120 CHECK_EQ( | 120 CHECK_EQ( |
121 0, ObjectHashTable::cast(weakset->table())->NumberOfDeletedElements()); | 121 0, ObjectHashTable::cast(weakset->table())->NumberOfDeletedElements()); |
122 heap->CollectAllGarbage("WeakSet_Weakness", Heap::kNoGCFlags); | 122 heap->CollectAllGarbage(false); |
123 CHECK_EQ(1, NumberOfWeakCalls); | 123 CHECK_EQ(1, NumberOfWeakCalls); |
124 CHECK_EQ(0, ObjectHashTable::cast(weakset->table())->NumberOfElements()); | 124 CHECK_EQ(0, ObjectHashTable::cast(weakset->table())->NumberOfElements()); |
125 CHECK_EQ( | 125 CHECK_EQ( |
126 1, ObjectHashTable::cast(weakset->table())->NumberOfDeletedElements()); | 126 1, ObjectHashTable::cast(weakset->table())->NumberOfDeletedElements()); |
127 } | 127 } |
128 | 128 |
129 | 129 |
130 TEST(WeakSet_Shrinking) { | 130 TEST(WeakSet_Shrinking) { |
131 LocalContext context; | 131 LocalContext context; |
132 Isolate* isolate = GetIsolateFrom(&context); | 132 Isolate* isolate = GetIsolateFrom(&context); |
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150 } | 150 } |
151 } | 151 } |
152 | 152 |
153 // Check increased capacity. | 153 // Check increased capacity. |
154 CHECK_EQ(128, ObjectHashTable::cast(weakset->table())->Capacity()); | 154 CHECK_EQ(128, ObjectHashTable::cast(weakset->table())->Capacity()); |
155 | 155 |
156 // Force a full GC. | 156 // Force a full GC. |
157 CHECK_EQ(32, ObjectHashTable::cast(weakset->table())->NumberOfElements()); | 157 CHECK_EQ(32, ObjectHashTable::cast(weakset->table())->NumberOfElements()); |
158 CHECK_EQ( | 158 CHECK_EQ( |
159 0, ObjectHashTable::cast(weakset->table())->NumberOfDeletedElements()); | 159 0, ObjectHashTable::cast(weakset->table())->NumberOfDeletedElements()); |
160 heap->CollectAllGarbage("WeakSet_Shrinking", Heap::kNoGCFlags); | 160 heap->CollectAllGarbage(false); |
161 CHECK_EQ(0, ObjectHashTable::cast(weakset->table())->NumberOfElements()); | 161 CHECK_EQ(0, ObjectHashTable::cast(weakset->table())->NumberOfElements()); |
162 CHECK_EQ( | 162 CHECK_EQ( |
163 32, ObjectHashTable::cast(weakset->table())->NumberOfDeletedElements()); | 163 32, ObjectHashTable::cast(weakset->table())->NumberOfDeletedElements()); |
164 | 164 |
165 // Check shrunk capacity. | 165 // Check shrunk capacity. |
166 CHECK_EQ(32, ObjectHashTable::cast(weakset->table())->Capacity()); | 166 CHECK_EQ(32, ObjectHashTable::cast(weakset->table())->Capacity()); |
167 } | 167 } |
168 | 168 |
169 | 169 |
170 // Test that weak set values on an evacuation candidate which are not reachable | 170 // Test that weak set values on an evacuation candidate which are not reachable |
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241 JSWeakCollection::Set(weakset, keys[i], smi, hash); | 241 JSWeakCollection::Set(weakset, keys[i], smi, hash); |
242 } | 242 } |
243 | 243 |
244 // Force compacting garbage collection. The subsequent collections are used | 244 // Force compacting garbage collection. The subsequent collections are used |
245 // to verify that key references were actually updated. | 245 // to verify that key references were actually updated. |
246 CHECK(FLAG_always_compact); | 246 CHECK(FLAG_always_compact); |
247 heap->CollectAllGarbage(); | 247 heap->CollectAllGarbage(); |
248 heap->CollectAllGarbage(); | 248 heap->CollectAllGarbage(); |
249 heap->CollectAllGarbage(); | 249 heap->CollectAllGarbage(); |
250 } | 250 } |
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