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| 1 // Copyright 2008 the V8 project authors. All rights reserved. | 1 // Copyright 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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| 139 EagerlyArchiveThread(); | 139 EagerlyArchiveThread(); |
| 140 } | 140 } |
| 141 ThreadState* state = | 141 ThreadState* state = |
| 142 reinterpret_cast<ThreadState*>(Thread::GetThreadLocal(thread_state_key)); | 142 reinterpret_cast<ThreadState*>(Thread::GetThreadLocal(thread_state_key)); |
| 143 if (state == NULL) { | 143 if (state == NULL) { |
| 144 return false; | 144 return false; |
| 145 } | 145 } |
| 146 char* from = state->data(); | 146 char* from = state->data(); |
| 147 from = HandleScopeImplementer::RestoreThread(from); | 147 from = HandleScopeImplementer::RestoreThread(from); |
| 148 from = Top::RestoreThread(from); | 148 from = Top::RestoreThread(from); |
| 149 from = Relocatable::RestoreState(from); |
| 149 #ifdef ENABLE_DEBUGGER_SUPPORT | 150 #ifdef ENABLE_DEBUGGER_SUPPORT |
| 150 from = Debug::RestoreDebug(from); | 151 from = Debug::RestoreDebug(from); |
| 151 #endif | 152 #endif |
| 152 from = StackGuard::RestoreStackGuard(from); | 153 from = StackGuard::RestoreStackGuard(from); |
| 153 from = RegExpStack::RestoreStack(from); | 154 from = RegExpStack::RestoreStack(from); |
| 154 from = Bootstrapper::RestoreState(from); | 155 from = Bootstrapper::RestoreState(from); |
| 155 Thread::SetThreadLocal(thread_state_key, NULL); | 156 Thread::SetThreadLocal(thread_state_key, NULL); |
| 156 if (state->terminate_on_restore()) { | 157 if (state->terminate_on_restore()) { |
| 157 StackGuard::TerminateExecution(); | 158 StackGuard::TerminateExecution(); |
| 158 state->set_terminate_on_restore(false); | 159 state->set_terminate_on_restore(false); |
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| 178 | 179 |
| 179 | 180 |
| 180 static int ArchiveSpacePerThread() { | 181 static int ArchiveSpacePerThread() { |
| 181 return HandleScopeImplementer::ArchiveSpacePerThread() + | 182 return HandleScopeImplementer::ArchiveSpacePerThread() + |
| 182 Top::ArchiveSpacePerThread() + | 183 Top::ArchiveSpacePerThread() + |
| 183 #ifdef ENABLE_DEBUGGER_SUPPORT | 184 #ifdef ENABLE_DEBUGGER_SUPPORT |
| 184 Debug::ArchiveSpacePerThread() + | 185 Debug::ArchiveSpacePerThread() + |
| 185 #endif | 186 #endif |
| 186 StackGuard::ArchiveSpacePerThread() + | 187 StackGuard::ArchiveSpacePerThread() + |
| 187 RegExpStack::ArchiveSpacePerThread() + | 188 RegExpStack::ArchiveSpacePerThread() + |
| 188 Bootstrapper::ArchiveSpacePerThread(); | 189 Bootstrapper::ArchiveSpacePerThread() + |
| 190 Relocatable::ArchiveSpacePerThread(); |
| 189 } | 191 } |
| 190 | 192 |
| 191 | 193 |
| 192 ThreadState* ThreadState::free_anchor_ = new ThreadState(); | 194 ThreadState* ThreadState::free_anchor_ = new ThreadState(); |
| 193 ThreadState* ThreadState::in_use_anchor_ = new ThreadState(); | 195 ThreadState* ThreadState::in_use_anchor_ = new ThreadState(); |
| 194 | 196 |
| 195 | 197 |
| 196 ThreadState::ThreadState() : id_(ThreadManager::kInvalidId), | 198 ThreadState::ThreadState() : id_(ThreadManager::kInvalidId), |
| 197 terminate_on_restore_(false), | 199 terminate_on_restore_(false), |
| 198 next_(this), previous_(this) { | 200 next_(this), previous_(this) { |
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| 268 | 270 |
| 269 | 271 |
| 270 void ThreadManager::EagerlyArchiveThread() { | 272 void ThreadManager::EagerlyArchiveThread() { |
| 271 ThreadState* state = lazily_archived_thread_state_; | 273 ThreadState* state = lazily_archived_thread_state_; |
| 272 state->LinkInto(ThreadState::IN_USE_LIST); | 274 state->LinkInto(ThreadState::IN_USE_LIST); |
| 273 char* to = state->data(); | 275 char* to = state->data(); |
| 274 // Ensure that data containing GC roots are archived first, and handle them | 276 // Ensure that data containing GC roots are archived first, and handle them |
| 275 // in ThreadManager::Iterate(ObjectVisitor*). | 277 // in ThreadManager::Iterate(ObjectVisitor*). |
| 276 to = HandleScopeImplementer::ArchiveThread(to); | 278 to = HandleScopeImplementer::ArchiveThread(to); |
| 277 to = Top::ArchiveThread(to); | 279 to = Top::ArchiveThread(to); |
| 280 to = Relocatable::ArchiveState(to); |
| 278 #ifdef ENABLE_DEBUGGER_SUPPORT | 281 #ifdef ENABLE_DEBUGGER_SUPPORT |
| 279 to = Debug::ArchiveDebug(to); | 282 to = Debug::ArchiveDebug(to); |
| 280 #endif | 283 #endif |
| 281 to = StackGuard::ArchiveStackGuard(to); | 284 to = StackGuard::ArchiveStackGuard(to); |
| 282 to = RegExpStack::ArchiveStack(to); | 285 to = RegExpStack::ArchiveStack(to); |
| 283 to = Bootstrapper::ArchiveState(to); | 286 to = Bootstrapper::ArchiveState(to); |
| 284 lazily_archived_thread_.Initialize(ThreadHandle::INVALID); | 287 lazily_archived_thread_.Initialize(ThreadHandle::INVALID); |
| 285 lazily_archived_thread_state_ = NULL; | 288 lazily_archived_thread_state_ = NULL; |
| 286 } | 289 } |
| 287 | 290 |
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| 304 | 307 |
| 305 | 308 |
| 306 void ThreadManager::Iterate(ObjectVisitor* v) { | 309 void ThreadManager::Iterate(ObjectVisitor* v) { |
| 307 // Expecting no threads during serialization/deserialization | 310 // Expecting no threads during serialization/deserialization |
| 308 for (ThreadState* state = ThreadState::FirstInUse(); | 311 for (ThreadState* state = ThreadState::FirstInUse(); |
| 309 state != NULL; | 312 state != NULL; |
| 310 state = state->Next()) { | 313 state = state->Next()) { |
| 311 char* data = state->data(); | 314 char* data = state->data(); |
| 312 data = HandleScopeImplementer::Iterate(v, data); | 315 data = HandleScopeImplementer::Iterate(v, data); |
| 313 data = Top::Iterate(v, data); | 316 data = Top::Iterate(v, data); |
| 317 data = Relocatable::Iterate(v, data); |
| 314 } | 318 } |
| 315 } | 319 } |
| 316 | 320 |
| 317 | 321 |
| 318 void ThreadManager::MarkCompactPrologue(bool is_compacting) { | 322 void ThreadManager::MarkCompactPrologue(bool is_compacting) { |
| 319 for (ThreadState* state = ThreadState::FirstInUse(); | 323 for (ThreadState* state = ThreadState::FirstInUse(); |
| 320 state != NULL; | 324 state != NULL; |
| 321 state = state->Next()) { | 325 state = state->Next()) { |
| 322 char* data = state->data(); | 326 char* data = state->data(); |
| 323 data += HandleScopeImplementer::ArchiveSpacePerThread(); | 327 data += HandleScopeImplementer::ArchiveSpacePerThread(); |
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| 425 // Acknowledge the preemption by the receiving thread. | 429 // Acknowledge the preemption by the receiving thread. |
| 426 void ContextSwitcher::PreemptionReceived() { | 430 void ContextSwitcher::PreemptionReceived() { |
| 427 ASSERT(Locker::IsLocked()); | 431 ASSERT(Locker::IsLocked()); |
| 428 // There is currently no accounting being done for this. But could be in the | 432 // There is currently no accounting being done for this. But could be in the |
| 429 // future, which is why we leave this in. | 433 // future, which is why we leave this in. |
| 430 } | 434 } |
| 431 | 435 |
| 432 | 436 |
| 433 } // namespace internal | 437 } // namespace internal |
| 434 } // namespace v8 | 438 } // namespace v8 |
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