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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 CHECK(!ScriptForbiddenScope::IsScriptForbidden()); | 48 CHECK(!ScriptForbiddenScope::IsScriptForbidden()); |
48 } | 49 } |
49 | 50 |
50 static void MicrotasksCompletedCallback(v8::Isolate* isolate) { | 51 static void MicrotasksCompletedCallback(v8::Isolate* isolate) { |
51 V8PerIsolateData::From(isolate)->RunEndOfScopeTasks(); | 52 V8PerIsolateData::From(isolate)->RunEndOfScopeTasks(); |
52 } | 53 } |
53 | 54 |
54 V8PerIsolateData::V8PerIsolateData(WebTaskRunner* task_runner) | 55 V8PerIsolateData::V8PerIsolateData(WebTaskRunner* task_runner, |
55 : isolate_holder_( | 56 intptr_t* table, |
57 V8ContextMode v8_context_mode) | |
58 : v8_context_mode_(v8_context_mode), | |
59 isolate_holder_( | |
56 task_runner ? task_runner->ToSingleThreadTaskRunner() : nullptr, | 60 task_runner ? task_runner->ToSingleThreadTaskRunner() : nullptr, |
57 gin::IsolateHolder::kSingleThread, | 61 gin::IsolateHolder::kSingleThread, |
58 IsMainThread() ? gin::IsolateHolder::kDisallowAtomicsWait | 62 IsMainThread() ? gin::IsolateHolder::kDisallowAtomicsWait |
59 : gin::IsolateHolder::kAllowAtomicsWait), | 63 : gin::IsolateHolder::kAllowAtomicsWait, |
64 table, | |
65 v8_context_mode_ == V8ContextMode::kUseSnapshot ? &startup_data_ | |
66 : nullptr), | |
67 interface_template_map_for_v8_snapshot_(GetIsolate()), | |
60 string_cache_(WTF::WrapUnique(new StringCache(GetIsolate()))), | 68 string_cache_(WTF::WrapUnique(new StringCache(GetIsolate()))), |
61 private_property_(V8PrivateProperty::Create()), | 69 private_property_(V8PrivateProperty::Create()), |
62 constructor_mode_(ConstructorMode::kCreateNewObject), | 70 constructor_mode_(ConstructorMode::kCreateNewObject), |
63 use_counter_disabled_(false), | 71 use_counter_disabled_(false), |
64 is_handling_recursion_level_error_(false), | 72 is_handling_recursion_level_error_(false), |
65 is_reporting_exception_(false) { | 73 is_reporting_exception_(false) { |
74 // If it fails to load the snapshot file, falls back to kDontUseSnapshot mode. | |
75 // TODO(peria): Remove this fallback routine. | |
76 if (v8_context_mode_ == V8ContextMode::kUseSnapshot && !startup_data_.data) { | |
77 v8_context_mode_ = V8ContextMode::kDontUseSnapshot; | |
78 } | |
79 | |
66 // FIXME: Remove once all v8::Isolate::GetCurrent() calls are gone. | 80 // FIXME: Remove once all v8::Isolate::GetCurrent() calls are gone. |
67 GetIsolate()->Enter(); | 81 GetIsolate()->Enter(); |
68 GetIsolate()->AddBeforeCallEnteredCallback(&BeforeCallEnteredCallback); | 82 GetIsolate()->AddBeforeCallEnteredCallback(&BeforeCallEnteredCallback); |
69 GetIsolate()->AddMicrotasksCompletedCallback(&MicrotasksCompletedCallback); | 83 GetIsolate()->AddMicrotasksCompletedCallback(&MicrotasksCompletedCallback); |
70 if (IsMainThread()) | 84 if (IsMainThread()) |
71 g_main_thread_per_isolate_data = this; | 85 g_main_thread_per_isolate_data = this; |
72 } | 86 } |
73 | 87 |
88 V8PerIsolateData::V8PerIsolateData(intptr_t* reference_table) | |
89 : v8_context_mode_(V8ContextMode::kTakeSnapshot), | |
90 isolate_holder_(reference_table, nullptr), | |
91 interface_template_map_for_v8_snapshot_(GetIsolate()), | |
92 string_cache_(WTF::WrapUnique(new StringCache(GetIsolate()))), | |
93 private_property_(V8PrivateProperty::Create()), | |
94 constructor_mode_(ConstructorMode::kCreateNewObject), | |
95 use_counter_disabled_(false), | |
96 is_handling_recursion_level_error_(false), | |
97 is_reporting_exception_(false) { | |
98 // This constructor assumes to be used to take V8 snapshot of context of | |
99 // Blink, and it must be run on the main thread. | |
100 CHECK(IsMainThread()); | |
101 | |
102 // FIXME: Remove once all v8::Isolate::GetCurrent() calls are gone. | |
Yuki
2017/06/20 14:20:11
s/FIXME/TODO(peria)/
peria
2017/06/21 07:19:16
Acknowledged.
| |
103 // SnapshotCreator enters the isolate, so don't do it again. | |
104 GetIsolate()->AddBeforeCallEnteredCallback(&BeforeCallEnteredCallback); | |
105 GetIsolate()->AddMicrotasksCompletedCallback(&MicrotasksCompletedCallback); | |
106 g_main_thread_per_isolate_data = this; | |
107 } | |
108 | |
74 V8PerIsolateData::~V8PerIsolateData() {} | 109 V8PerIsolateData::~V8PerIsolateData() {} |
75 | 110 |
76 v8::Isolate* V8PerIsolateData::MainThreadIsolate() { | 111 v8::Isolate* V8PerIsolateData::MainThreadIsolate() { |
77 DCHECK(g_main_thread_per_isolate_data); | 112 DCHECK(g_main_thread_per_isolate_data); |
78 return g_main_thread_per_isolate_data->GetIsolate(); | 113 return g_main_thread_per_isolate_data->GetIsolate(); |
79 } | 114 } |
80 | 115 |
81 v8::Isolate* V8PerIsolateData::Initialize(WebTaskRunner* task_runner) { | 116 v8::Isolate* V8PerIsolateData::Initialize(WebTaskRunner* task_runner, |
82 V8PerIsolateData* data = new V8PerIsolateData(task_runner); | 117 intptr_t* reference_table, |
118 V8ContextMode context_mode) { | |
119 DCHECK(context_mode == V8ContextMode::kDontUseSnapshot || reference_table); | |
120 | |
121 V8PerIsolateData* data = nullptr; | |
122 if (context_mode == V8ContextMode::kTakeSnapshot) { | |
123 CHECK(reference_table); | |
124 data = new V8PerIsolateData(reference_table); | |
125 } else { | |
126 if (!RuntimeEnabledFeatures::V8ContextSnapshotEnabled()) { | |
127 context_mode = V8ContextMode::kDontUseSnapshot; | |
128 reference_table = nullptr; | |
129 } | |
130 data = new V8PerIsolateData(task_runner, reference_table, context_mode); | |
131 } | |
132 DCHECK(data); | |
133 | |
83 v8::Isolate* isolate = data->GetIsolate(); | 134 v8::Isolate* isolate = data->GetIsolate(); |
84 isolate->SetData(gin::kEmbedderBlink, data); | 135 isolate->SetData(gin::kEmbedderBlink, data); |
85 return isolate; | 136 return isolate; |
86 } | 137 } |
87 | 138 |
88 void V8PerIsolateData::EnableIdleTasks( | 139 void V8PerIsolateData::EnableIdleTasks( |
89 v8::Isolate* isolate, | 140 v8::Isolate* isolate, |
90 std::unique_ptr<gin::V8IdleTaskRunner> task_runner) { | 141 std::unique_ptr<gin::V8IdleTaskRunner> task_runner) { |
91 From(isolate)->isolate_holder_.EnableIdleTasks(std::move(task_runner)); | 142 From(isolate)->isolate_holder_.EnableIdleTasks(std::move(task_runner)); |
92 } | 143 } |
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156 v8::Local<v8::FunctionTemplate> templ = v8::FunctionTemplate::New( | 207 v8::Local<v8::FunctionTemplate> templ = v8::FunctionTemplate::New( |
157 GetIsolate(), callback, data, signature, length); | 208 GetIsolate(), callback, data, signature, length); |
158 templ->RemovePrototype(); | 209 templ->RemovePrototype(); |
159 map.insert(key, v8::Eternal<v8::FunctionTemplate>(GetIsolate(), templ)); | 210 map.insert(key, v8::Eternal<v8::FunctionTemplate>(GetIsolate(), templ)); |
160 return templ; | 211 return templ; |
161 } | 212 } |
162 | 213 |
163 v8::Local<v8::FunctionTemplate> V8PerIsolateData::FindInterfaceTemplate( | 214 v8::Local<v8::FunctionTemplate> V8PerIsolateData::FindInterfaceTemplate( |
164 const DOMWrapperWorld& world, | 215 const DOMWrapperWorld& world, |
165 const void* key) { | 216 const void* key) { |
217 if (GetV8ContextMode() == V8ContextMode::kTakeSnapshot) { | |
218 const WrapperTypeInfo* type = reinterpret_cast<const WrapperTypeInfo*>(key); | |
219 return interface_template_map_for_v8_snapshot_.Get(type); | |
220 } | |
221 | |
166 auto& map = SelectInterfaceTemplateMap(world); | 222 auto& map = SelectInterfaceTemplateMap(world); |
167 auto result = map.find(key); | 223 auto result = map.find(key); |
168 if (result != map.end()) | 224 if (result != map.end()) |
169 return result->value.Get(GetIsolate()); | 225 return result->value.Get(GetIsolate()); |
170 return v8::Local<v8::FunctionTemplate>(); | 226 return v8::Local<v8::FunctionTemplate>(); |
171 } | 227 } |
172 | 228 |
173 void V8PerIsolateData::SetInterfaceTemplate( | 229 void V8PerIsolateData::SetInterfaceTemplate( |
174 const DOMWrapperWorld& world, | 230 const DOMWrapperWorld& world, |
175 const void* key, | 231 const void* key, |
176 v8::Local<v8::FunctionTemplate> value) { | 232 v8::Local<v8::FunctionTemplate> value) { |
177 auto& map = SelectInterfaceTemplateMap(world); | 233 if (GetV8ContextMode() == V8ContextMode::kTakeSnapshot) { |
178 map.insert(key, v8::Eternal<v8::FunctionTemplate>(GetIsolate(), value)); | 234 auto& map = interface_template_map_for_v8_snapshot_; |
235 const WrapperTypeInfo* type = reinterpret_cast<const WrapperTypeInfo*>(key); | |
236 map.Set(type, value); | |
237 } else { | |
238 auto& map = SelectInterfaceTemplateMap(world); | |
239 map.insert(key, v8::Eternal<v8::FunctionTemplate>(GetIsolate(), value)); | |
240 } | |
241 } | |
242 | |
243 void V8PerIsolateData::ClearPersistentsForV8Snapshot() { | |
244 interface_template_map_for_v8_snapshot_.Clear(); | |
245 private_property_.reset(); | |
179 } | 246 } |
180 | 247 |
181 const v8::Eternal<v8::Name>* V8PerIsolateData::FindOrCreateEternalNameCache( | 248 const v8::Eternal<v8::Name>* V8PerIsolateData::FindOrCreateEternalNameCache( |
182 const void* lookup_key, | 249 const void* lookup_key, |
183 const char* const names[], | 250 const char* const names[], |
184 size_t count) { | 251 size_t count) { |
185 auto it = eternal_name_cache_.find(lookup_key); | 252 auto it = eternal_name_cache_.find(lookup_key); |
186 const Vector<v8::Eternal<v8::Name>>* vector = nullptr; | 253 const Vector<v8::Eternal<v8::Name>>* vector = nullptr; |
187 if (UNLIKELY(it == eternal_name_cache_.end())) { | 254 if (UNLIKELY(it == eternal_name_cache_.end())) { |
188 v8::Isolate* isolate = this->GetIsolate(); | 255 v8::Isolate* isolate = this->GetIsolate(); |
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302 ScriptWrappableVisitor* current = CurrentVisitor(); | 369 ScriptWrappableVisitor* current = CurrentVisitor(); |
303 if (current) | 370 if (current) |
304 current->PerformCleanup(); | 371 current->PerformCleanup(); |
305 | 372 |
306 V8PerIsolateData::From(isolate_)->script_wrappable_visitor_.swap( | 373 V8PerIsolateData::From(isolate_)->script_wrappable_visitor_.swap( |
307 saved_visitor_); | 374 saved_visitor_); |
308 isolate_->SetEmbedderHeapTracer(CurrentVisitor()); | 375 isolate_->SetEmbedderHeapTracer(CurrentVisitor()); |
309 } | 376 } |
310 | 377 |
311 } // namespace blink | 378 } // namespace blink |
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