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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 |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
| 28 #include <utility> |
| 29 |
28 #include "v8.h" | 30 #include "v8.h" |
29 | 31 |
30 #include "global-handles.h" | 32 #include "global-handles.h" |
31 #include "snapshot.h" | 33 #include "snapshot.h" |
32 #include "cctest.h" | 34 #include "cctest.h" |
33 | 35 |
34 using namespace v8::internal; | 36 using namespace v8::internal; |
35 | 37 |
36 | 38 |
37 static Isolate* GetIsolateFrom(LocalContext* context) { | 39 static Isolate* GetIsolateFrom(LocalContext* context) { |
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57 Handle<JSObject> key, | 59 Handle<JSObject> key, |
58 Handle<Object> value) { | 60 Handle<Object> value) { |
59 Handle<ObjectHashTable> table = ObjectHashTable::Put( | 61 Handle<ObjectHashTable> table = ObjectHashTable::Put( |
60 Handle<ObjectHashTable>(ObjectHashTable::cast(weakset->table())), | 62 Handle<ObjectHashTable>(ObjectHashTable::cast(weakset->table())), |
61 Handle<JSObject>(JSObject::cast(*key)), | 63 Handle<JSObject>(JSObject::cast(*key)), |
62 value); | 64 value); |
63 weakset->set_table(*table); | 65 weakset->set_table(*table); |
64 } | 66 } |
65 | 67 |
66 static int NumberOfWeakCalls = 0; | 68 static int NumberOfWeakCalls = 0; |
67 static void WeakPointerCallback(v8::Isolate* isolate, | 69 static void WeakPointerCallback( |
68 v8::Persistent<v8::Value>* handle, | 70 const v8::WeakCallbackData<v8::Value, void>& data) { |
69 void* id) { | 71 std::pair<v8::Persistent<v8::Value>*, int>* p = |
70 ASSERT(id == reinterpret_cast<void*>(1234)); | 72 reinterpret_cast<std::pair<v8::Persistent<v8::Value>*, int>*>( |
| 73 data.GetParameter()); |
| 74 ASSERT_EQ(1234, p->second); |
71 NumberOfWeakCalls++; | 75 NumberOfWeakCalls++; |
72 handle->Reset(); | 76 p->first->Reset(); |
73 } | 77 } |
74 | 78 |
75 | 79 |
76 TEST(WeakSet_Weakness) { | 80 TEST(WeakSet_Weakness) { |
77 FLAG_incremental_marking = false; | 81 FLAG_incremental_marking = false; |
78 LocalContext context; | 82 LocalContext context; |
79 Isolate* isolate = GetIsolateFrom(&context); | 83 Isolate* isolate = GetIsolateFrom(&context); |
80 Factory* factory = isolate->factory(); | 84 Factory* factory = isolate->factory(); |
81 Heap* heap = isolate->heap(); | 85 Heap* heap = isolate->heap(); |
82 HandleScope scope(isolate); | 86 HandleScope scope(isolate); |
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105 // Force a full GC. | 109 // Force a full GC. |
106 heap->CollectAllGarbage(false); | 110 heap->CollectAllGarbage(false); |
107 CHECK_EQ(0, NumberOfWeakCalls); | 111 CHECK_EQ(0, NumberOfWeakCalls); |
108 CHECK_EQ(1, ObjectHashTable::cast(weakset->table())->NumberOfElements()); | 112 CHECK_EQ(1, ObjectHashTable::cast(weakset->table())->NumberOfElements()); |
109 CHECK_EQ( | 113 CHECK_EQ( |
110 0, ObjectHashTable::cast(weakset->table())->NumberOfDeletedElements()); | 114 0, ObjectHashTable::cast(weakset->table())->NumberOfDeletedElements()); |
111 | 115 |
112 // Make the global reference to the key weak. | 116 // Make the global reference to the key weak. |
113 { | 117 { |
114 HandleScope scope(isolate); | 118 HandleScope scope(isolate); |
115 global_handles->MakeWeak(key.location(), | 119 std::pair<Handle<Object>*, int> handle_and_id(&key, 1234); |
116 reinterpret_cast<void*>(1234), | 120 GlobalHandles::MakeWeak(key.location(), |
117 &WeakPointerCallback); | 121 reinterpret_cast<void*>(&handle_and_id), |
| 122 &WeakPointerCallback); |
118 } | 123 } |
119 CHECK(global_handles->IsWeak(key.location())); | 124 CHECK(global_handles->IsWeak(key.location())); |
120 | 125 |
121 // Force a full GC. | 126 // Force a full GC. |
122 // Perform two consecutive GCs because the first one will only clear | 127 // Perform two consecutive GCs because the first one will only clear |
123 // weak references whereas the second one will also clear weak sets. | 128 // weak references whereas the second one will also clear weak sets. |
124 heap->CollectAllGarbage(false); | 129 heap->CollectAllGarbage(false); |
125 CHECK_EQ(1, NumberOfWeakCalls); | 130 CHECK_EQ(1, NumberOfWeakCalls); |
126 CHECK_EQ(1, ObjectHashTable::cast(weakset->table())->NumberOfElements()); | 131 CHECK_EQ(1, ObjectHashTable::cast(weakset->table())->NumberOfElements()); |
127 CHECK_EQ( | 132 CHECK_EQ( |
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241 Handle<Smi>(Smi::FromInt(i), isolate)); | 246 Handle<Smi>(Smi::FromInt(i), isolate)); |
242 } | 247 } |
243 | 248 |
244 // Force compacting garbage collection. The subsequent collections are used | 249 // Force compacting garbage collection. The subsequent collections are used |
245 // to verify that key references were actually updated. | 250 // to verify that key references were actually updated. |
246 CHECK(FLAG_always_compact); | 251 CHECK(FLAG_always_compact); |
247 heap->CollectAllGarbage(Heap::kNoGCFlags); | 252 heap->CollectAllGarbage(Heap::kNoGCFlags); |
248 heap->CollectAllGarbage(Heap::kNoGCFlags); | 253 heap->CollectAllGarbage(Heap::kNoGCFlags); |
249 heap->CollectAllGarbage(Heap::kNoGCFlags); | 254 heap->CollectAllGarbage(Heap::kNoGCFlags); |
250 } | 255 } |
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