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1 /* | 1 /* |
2 * Copyright (C) 2009 Google Inc. All rights reserved. | 2 * Copyright (C) 2009 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
12 * | 12 * |
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' | 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS | 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
23 * THE POSSIBILITY OF SUCH DAMAGE. | 23 * THE POSSIBILITY OF SUCH DAMAGE. |
24 */ | 24 */ |
25 | 25 |
26 #include "platform/bindings/V8PerIsolateData.h" | 26 #include "platform/bindings/V8PerIsolateData.h" |
27 | 27 |
28 #include <memory> | 28 #include <memory> |
29 | 29 |
30 #include "platform/RuntimeEnabledFeatures.h" | |
30 #include "platform/ScriptForbiddenScope.h" | 31 #include "platform/ScriptForbiddenScope.h" |
31 #include "platform/WebTaskRunner.h" | 32 #include "platform/WebTaskRunner.h" |
32 #include "platform/bindings/DOMDataStore.h" | 33 #include "platform/bindings/DOMDataStore.h" |
33 #include "platform/bindings/V8Binding.h" | 34 #include "platform/bindings/V8Binding.h" |
34 #include "platform/bindings/V8ObjectConstructor.h" | 35 #include "platform/bindings/V8ObjectConstructor.h" |
35 #include "platform/bindings/V8PrivateProperty.h" | 36 #include "platform/bindings/V8PrivateProperty.h" |
36 #include "platform/bindings/V8ValueCache.h" | 37 #include "platform/bindings/V8ValueCache.h" |
37 #include "platform/wtf/LeakAnnotations.h" | 38 #include "platform/wtf/LeakAnnotations.h" |
38 #include "platform/wtf/PtrUtil.h" | 39 #include "platform/wtf/PtrUtil.h" |
39 #include "public/platform/Platform.h" | 40 #include "public/platform/Platform.h" |
40 #include "v8/include/v8-debug.h" | 41 #include "v8/include/v8-debug.h" |
41 | 42 |
42 namespace blink { | 43 namespace blink { |
43 | 44 |
44 static V8PerIsolateData* g_main_thread_per_isolate_data = 0; | 45 static V8PerIsolateData* g_main_thread_per_isolate_data = 0; |
45 | 46 |
46 static void BeforeCallEnteredCallback(v8::Isolate* isolate) { | 47 static void BeforeCallEnteredCallback(v8::Isolate* isolate) { |
47 // TODO(jochen): Re-enable this once https://crbug.com/728583 | 48 // TODO(jochen): Re-enable this once https://crbug.com/728583 |
48 // CHECK(!ScriptForbiddenScope::IsScriptForbidden()); | 49 // CHECK(!ScriptForbiddenScope::IsScriptForbidden()); |
49 } | 50 } |
50 | 51 |
51 static void MicrotasksCompletedCallback(v8::Isolate* isolate) { | 52 static void MicrotasksCompletedCallback(v8::Isolate* isolate) { |
52 V8PerIsolateData::From(isolate)->RunEndOfScopeTasks(); | 53 V8PerIsolateData::From(isolate)->RunEndOfScopeTasks(); |
53 } | 54 } |
54 | 55 |
55 V8PerIsolateData::V8PerIsolateData(WebTaskRunner* task_runner) | 56 V8PerIsolateData::V8PerIsolateData(WebTaskRunner* task_runner, |
56 : isolate_holder_( | 57 intptr_t* table, |
58 V8ContextMode v8_context_mode) | |
59 : v8_context_mode_(v8_context_mode), | |
60 isolate_holder_( | |
57 task_runner ? task_runner->ToSingleThreadTaskRunner() : nullptr, | 61 task_runner ? task_runner->ToSingleThreadTaskRunner() : nullptr, |
58 gin::IsolateHolder::kSingleThread, | 62 gin::IsolateHolder::kSingleThread, |
59 IsMainThread() ? gin::IsolateHolder::kDisallowAtomicsWait | 63 IsMainThread() ? gin::IsolateHolder::kDisallowAtomicsWait |
60 : gin::IsolateHolder::kAllowAtomicsWait), | 64 : gin::IsolateHolder::kAllowAtomicsWait, |
65 table, | |
66 v8_context_mode_ == V8ContextMode::kUseSnapshot ? &startup_data_ | |
67 : nullptr), | |
68 interface_template_map_for_v8_snapshot_(GetIsolate()), | |
61 string_cache_(WTF::WrapUnique(new StringCache(GetIsolate()))), | 69 string_cache_(WTF::WrapUnique(new StringCache(GetIsolate()))), |
62 private_property_(V8PrivateProperty::Create()), | 70 private_property_(V8PrivateProperty::Create()), |
63 constructor_mode_(ConstructorMode::kCreateNewObject), | 71 constructor_mode_(ConstructorMode::kCreateNewObject), |
64 use_counter_disabled_(false), | 72 use_counter_disabled_(false), |
65 is_handling_recursion_level_error_(false), | 73 is_handling_recursion_level_error_(false), |
66 is_reporting_exception_(false) { | 74 is_reporting_exception_(false) { |
75 // If it fails to load the snapshot file, falls back to kDontUseSnapshot mode. | |
76 // TODO(peria): Remove this fallback routine. | |
77 if (v8_context_mode_ == V8ContextMode::kUseSnapshot && !startup_data_.data) { | |
78 v8_context_mode_ = V8ContextMode::kDontUseSnapshot; | |
79 } | |
80 | |
67 // FIXME: Remove once all v8::Isolate::GetCurrent() calls are gone. | 81 // FIXME: Remove once all v8::Isolate::GetCurrent() calls are gone. |
68 GetIsolate()->Enter(); | 82 GetIsolate()->Enter(); |
69 GetIsolate()->AddBeforeCallEnteredCallback(&BeforeCallEnteredCallback); | 83 GetIsolate()->AddBeforeCallEnteredCallback(&BeforeCallEnteredCallback); |
70 GetIsolate()->AddMicrotasksCompletedCallback(&MicrotasksCompletedCallback); | 84 GetIsolate()->AddMicrotasksCompletedCallback(&MicrotasksCompletedCallback); |
71 if (IsMainThread()) | 85 if (IsMainThread()) |
72 g_main_thread_per_isolate_data = this; | 86 g_main_thread_per_isolate_data = this; |
73 } | 87 } |
74 | 88 |
89 V8PerIsolateData::V8PerIsolateData(intptr_t* reference_table) | |
90 : v8_context_mode_(V8ContextMode::kTakeSnapshot), | |
91 isolate_holder_(reference_table, nullptr), | |
92 interface_template_map_for_v8_snapshot_(GetIsolate()), | |
93 string_cache_(WTF::WrapUnique(new StringCache(GetIsolate()))), | |
94 private_property_(V8PrivateProperty::Create()), | |
95 constructor_mode_(ConstructorMode::kCreateNewObject), | |
96 use_counter_disabled_(false), | |
97 is_handling_recursion_level_error_(false), | |
98 is_reporting_exception_(false) { | |
99 // This constructor assumes to be used to take V8 snapshot of context of | |
100 // Blink, and it must be run on the main thread. | |
101 CHECK(IsMainThread()); | |
102 | |
103 // SnapshotCreator enters the isolate, so we don't call Isolate::Enter() here. | |
104 | |
105 // FIXME: Remove once all v8::Isolate::GetCurrent() calls are gone. | |
Yuki
2017/06/23 15:20:45
s/FIXME/TODO(peria)/
peria
2017/06/27 09:52:37
Acknowledged.
| |
106 GetIsolate()->AddBeforeCallEnteredCallback(&BeforeCallEnteredCallback); | |
107 GetIsolate()->AddMicrotasksCompletedCallback(&MicrotasksCompletedCallback); | |
108 g_main_thread_per_isolate_data = this; | |
109 } | |
110 | |
75 V8PerIsolateData::~V8PerIsolateData() {} | 111 V8PerIsolateData::~V8PerIsolateData() {} |
76 | 112 |
77 v8::Isolate* V8PerIsolateData::MainThreadIsolate() { | 113 v8::Isolate* V8PerIsolateData::MainThreadIsolate() { |
78 DCHECK(g_main_thread_per_isolate_data); | 114 DCHECK(g_main_thread_per_isolate_data); |
79 return g_main_thread_per_isolate_data->GetIsolate(); | 115 return g_main_thread_per_isolate_data->GetIsolate(); |
80 } | 116 } |
81 | 117 |
82 v8::Isolate* V8PerIsolateData::Initialize(WebTaskRunner* task_runner) { | 118 v8::Isolate* V8PerIsolateData::Initialize(WebTaskRunner* task_runner, |
83 V8PerIsolateData* data = new V8PerIsolateData(task_runner); | 119 intptr_t* reference_table, |
120 V8ContextMode context_mode) { | |
121 DCHECK(context_mode == V8ContextMode::kDontUseSnapshot || reference_table); | |
122 | |
123 V8PerIsolateData* data = nullptr; | |
124 if (context_mode == V8ContextMode::kTakeSnapshot) { | |
125 CHECK(reference_table); | |
126 data = new V8PerIsolateData(reference_table); | |
127 } else { | |
128 if (!RuntimeEnabledFeatures::V8ContextSnapshotEnabled()) { | |
129 context_mode = V8ContextMode::kDontUseSnapshot; | |
130 reference_table = nullptr; | |
131 } | |
132 data = new V8PerIsolateData(task_runner, reference_table, context_mode); | |
133 } | |
134 DCHECK(data); | |
135 | |
84 v8::Isolate* isolate = data->GetIsolate(); | 136 v8::Isolate* isolate = data->GetIsolate(); |
85 isolate->SetData(gin::kEmbedderBlink, data); | 137 isolate->SetData(gin::kEmbedderBlink, data); |
86 return isolate; | 138 return isolate; |
87 } | 139 } |
88 | 140 |
89 void V8PerIsolateData::EnableIdleTasks( | 141 void V8PerIsolateData::EnableIdleTasks( |
90 v8::Isolate* isolate, | 142 v8::Isolate* isolate, |
91 std::unique_ptr<gin::V8IdleTaskRunner> task_runner) { | 143 std::unique_ptr<gin::V8IdleTaskRunner> task_runner) { |
92 From(isolate)->isolate_holder_.EnableIdleTasks(std::move(task_runner)); | 144 From(isolate)->isolate_holder_.EnableIdleTasks(std::move(task_runner)); |
93 } | 145 } |
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157 v8::Local<v8::FunctionTemplate> templ = v8::FunctionTemplate::New( | 209 v8::Local<v8::FunctionTemplate> templ = v8::FunctionTemplate::New( |
158 GetIsolate(), callback, data, signature, length); | 210 GetIsolate(), callback, data, signature, length); |
159 templ->RemovePrototype(); | 211 templ->RemovePrototype(); |
160 map.insert(key, v8::Eternal<v8::FunctionTemplate>(GetIsolate(), templ)); | 212 map.insert(key, v8::Eternal<v8::FunctionTemplate>(GetIsolate(), templ)); |
161 return templ; | 213 return templ; |
162 } | 214 } |
163 | 215 |
164 v8::Local<v8::FunctionTemplate> V8PerIsolateData::FindInterfaceTemplate( | 216 v8::Local<v8::FunctionTemplate> V8PerIsolateData::FindInterfaceTemplate( |
165 const DOMWrapperWorld& world, | 217 const DOMWrapperWorld& world, |
166 const void* key) { | 218 const void* key) { |
219 if (GetV8ContextMode() == V8ContextMode::kTakeSnapshot) { | |
220 const WrapperTypeInfo* type = reinterpret_cast<const WrapperTypeInfo*>(key); | |
221 return interface_template_map_for_v8_snapshot_.Get(type); | |
222 } | |
223 | |
167 auto& map = SelectInterfaceTemplateMap(world); | 224 auto& map = SelectInterfaceTemplateMap(world); |
168 auto result = map.find(key); | 225 auto result = map.find(key); |
169 if (result != map.end()) | 226 if (result != map.end()) |
170 return result->value.Get(GetIsolate()); | 227 return result->value.Get(GetIsolate()); |
171 return v8::Local<v8::FunctionTemplate>(); | 228 return v8::Local<v8::FunctionTemplate>(); |
172 } | 229 } |
173 | 230 |
174 void V8PerIsolateData::SetInterfaceTemplate( | 231 void V8PerIsolateData::SetInterfaceTemplate( |
175 const DOMWrapperWorld& world, | 232 const DOMWrapperWorld& world, |
176 const void* key, | 233 const void* key, |
177 v8::Local<v8::FunctionTemplate> value) { | 234 v8::Local<v8::FunctionTemplate> value) { |
178 auto& map = SelectInterfaceTemplateMap(world); | 235 if (GetV8ContextMode() == V8ContextMode::kTakeSnapshot) { |
179 map.insert(key, v8::Eternal<v8::FunctionTemplate>(GetIsolate(), value)); | 236 auto& map = interface_template_map_for_v8_snapshot_; |
237 const WrapperTypeInfo* type = reinterpret_cast<const WrapperTypeInfo*>(key); | |
238 map.Set(type, value); | |
239 } else { | |
240 auto& map = SelectInterfaceTemplateMap(world); | |
241 map.insert(key, v8::Eternal<v8::FunctionTemplate>(GetIsolate(), value)); | |
242 } | |
243 } | |
244 | |
245 void V8PerIsolateData::ClearPersistentsForV8Snapshot() { | |
246 interface_template_map_for_v8_snapshot_.Clear(); | |
247 private_property_.reset(); | |
180 } | 248 } |
181 | 249 |
182 const v8::Eternal<v8::Name>* V8PerIsolateData::FindOrCreateEternalNameCache( | 250 const v8::Eternal<v8::Name>* V8PerIsolateData::FindOrCreateEternalNameCache( |
183 const void* lookup_key, | 251 const void* lookup_key, |
184 const char* const names[], | 252 const char* const names[], |
185 size_t count) { | 253 size_t count) { |
186 auto it = eternal_name_cache_.find(lookup_key); | 254 auto it = eternal_name_cache_.find(lookup_key); |
187 const Vector<v8::Eternal<v8::Name>>* vector = nullptr; | 255 const Vector<v8::Eternal<v8::Name>>* vector = nullptr; |
188 if (UNLIKELY(it == eternal_name_cache_.end())) { | 256 if (UNLIKELY(it == eternal_name_cache_.end())) { |
189 v8::Isolate* isolate = this->GetIsolate(); | 257 v8::Isolate* isolate = this->GetIsolate(); |
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303 ScriptWrappableVisitor* current = CurrentVisitor(); | 371 ScriptWrappableVisitor* current = CurrentVisitor(); |
304 if (current) | 372 if (current) |
305 current->PerformCleanup(); | 373 current->PerformCleanup(); |
306 | 374 |
307 V8PerIsolateData::From(isolate_)->script_wrappable_visitor_.swap( | 375 V8PerIsolateData::From(isolate_)->script_wrappable_visitor_.swap( |
308 saved_visitor_); | 376 saved_visitor_); |
309 isolate_->SetEmbedderHeapTracer(CurrentVisitor()); | 377 isolate_->SetEmbedderHeapTracer(CurrentVisitor()); |
310 } | 378 } |
311 | 379 |
312 } // namespace blink | 380 } // namespace blink |
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