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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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155 if (per_thread == NULL || per_thread->thread_state() == NULL) { | 155 if (per_thread == NULL || per_thread->thread_state() == NULL) { |
156 // This is a new thread. | 156 // This is a new thread. |
157 isolate_->stack_guard()->InitThread(access); | 157 isolate_->stack_guard()->InitThread(access); |
158 return false; | 158 return false; |
159 } | 159 } |
160 ThreadState* state = per_thread->thread_state(); | 160 ThreadState* state = per_thread->thread_state(); |
161 char* from = state->data(); | 161 char* from = state->data(); |
162 from = isolate_->handle_scope_implementer()->RestoreThread(from); | 162 from = isolate_->handle_scope_implementer()->RestoreThread(from); |
163 from = isolate_->RestoreThread(from); | 163 from = isolate_->RestoreThread(from); |
164 from = Relocatable::RestoreState(isolate_, from); | 164 from = Relocatable::RestoreState(isolate_, from); |
165 #ifdef ENABLE_DEBUGGER_SUPPORT | |
166 from = isolate_->debug()->RestoreDebug(from); | 165 from = isolate_->debug()->RestoreDebug(from); |
167 #endif | |
168 from = isolate_->stack_guard()->RestoreStackGuard(from); | 166 from = isolate_->stack_guard()->RestoreStackGuard(from); |
169 from = isolate_->regexp_stack()->RestoreStack(from); | 167 from = isolate_->regexp_stack()->RestoreStack(from); |
170 from = isolate_->bootstrapper()->RestoreState(from); | 168 from = isolate_->bootstrapper()->RestoreState(from); |
171 per_thread->set_thread_state(NULL); | 169 per_thread->set_thread_state(NULL); |
172 if (state->terminate_on_restore()) { | 170 if (state->terminate_on_restore()) { |
173 isolate_->stack_guard()->TerminateExecution(); | 171 isolate_->stack_guard()->TerminateExecution(); |
174 state->set_terminate_on_restore(false); | 172 state->set_terminate_on_restore(false); |
175 } | 173 } |
176 state->set_id(ThreadId::Invalid()); | 174 state->set_id(ThreadId::Invalid()); |
177 state->Unlink(); | 175 state->Unlink(); |
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189 | 187 |
190 void ThreadManager::Unlock() { | 188 void ThreadManager::Unlock() { |
191 mutex_owner_ = ThreadId::Invalid(); | 189 mutex_owner_ = ThreadId::Invalid(); |
192 mutex_.Unlock(); | 190 mutex_.Unlock(); |
193 } | 191 } |
194 | 192 |
195 | 193 |
196 static int ArchiveSpacePerThread() { | 194 static int ArchiveSpacePerThread() { |
197 return HandleScopeImplementer::ArchiveSpacePerThread() + | 195 return HandleScopeImplementer::ArchiveSpacePerThread() + |
198 Isolate::ArchiveSpacePerThread() + | 196 Isolate::ArchiveSpacePerThread() + |
199 #ifdef ENABLE_DEBUGGER_SUPPORT | |
200 Debug::ArchiveSpacePerThread() + | 197 Debug::ArchiveSpacePerThread() + |
201 #endif | |
202 StackGuard::ArchiveSpacePerThread() + | 198 StackGuard::ArchiveSpacePerThread() + |
203 RegExpStack::ArchiveSpacePerThread() + | 199 RegExpStack::ArchiveSpacePerThread() + |
204 Bootstrapper::ArchiveSpacePerThread() + | 200 Bootstrapper::ArchiveSpacePerThread() + |
205 Relocatable::ArchiveSpacePerThread(); | 201 Relocatable::ArchiveSpacePerThread(); |
206 } | 202 } |
207 | 203 |
208 | 204 |
209 ThreadState::ThreadState(ThreadManager* thread_manager) | 205 ThreadState::ThreadState(ThreadManager* thread_manager) |
210 : id_(ThreadId::Invalid()), | 206 : id_(ThreadId::Invalid()), |
211 terminate_on_restore_(false), | 207 terminate_on_restore_(false), |
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317 void ThreadManager::EagerlyArchiveThread() { | 313 void ThreadManager::EagerlyArchiveThread() { |
318 ASSERT(IsLockedByCurrentThread()); | 314 ASSERT(IsLockedByCurrentThread()); |
319 ThreadState* state = lazily_archived_thread_state_; | 315 ThreadState* state = lazily_archived_thread_state_; |
320 state->LinkInto(ThreadState::IN_USE_LIST); | 316 state->LinkInto(ThreadState::IN_USE_LIST); |
321 char* to = state->data(); | 317 char* to = state->data(); |
322 // Ensure that data containing GC roots are archived first, and handle them | 318 // Ensure that data containing GC roots are archived first, and handle them |
323 // in ThreadManager::Iterate(ObjectVisitor*). | 319 // in ThreadManager::Iterate(ObjectVisitor*). |
324 to = isolate_->handle_scope_implementer()->ArchiveThread(to); | 320 to = isolate_->handle_scope_implementer()->ArchiveThread(to); |
325 to = isolate_->ArchiveThread(to); | 321 to = isolate_->ArchiveThread(to); |
326 to = Relocatable::ArchiveState(isolate_, to); | 322 to = Relocatable::ArchiveState(isolate_, to); |
327 #ifdef ENABLE_DEBUGGER_SUPPORT | |
328 to = isolate_->debug()->ArchiveDebug(to); | 323 to = isolate_->debug()->ArchiveDebug(to); |
329 #endif | |
330 to = isolate_->stack_guard()->ArchiveStackGuard(to); | 324 to = isolate_->stack_guard()->ArchiveStackGuard(to); |
331 to = isolate_->regexp_stack()->ArchiveStack(to); | 325 to = isolate_->regexp_stack()->ArchiveStack(to); |
332 to = isolate_->bootstrapper()->ArchiveState(to); | 326 to = isolate_->bootstrapper()->ArchiveState(to); |
333 lazily_archived_thread_ = ThreadId::Invalid(); | 327 lazily_archived_thread_ = ThreadId::Invalid(); |
334 lazily_archived_thread_state_ = NULL; | 328 lazily_archived_thread_state_ = NULL; |
335 } | 329 } |
336 | 330 |
337 | 331 |
338 void ThreadManager::FreeThreadResources() { | 332 void ThreadManager::FreeThreadResources() { |
339 isolate_->handle_scope_implementer()->FreeThreadResources(); | 333 isolate_->handle_scope_implementer()->FreeThreadResources(); |
340 isolate_->FreeThreadResources(); | 334 isolate_->FreeThreadResources(); |
341 #ifdef ENABLE_DEBUGGER_SUPPORT | |
342 isolate_->debug()->FreeThreadResources(); | 335 isolate_->debug()->FreeThreadResources(); |
343 #endif | |
344 isolate_->stack_guard()->FreeThreadResources(); | 336 isolate_->stack_guard()->FreeThreadResources(); |
345 isolate_->regexp_stack()->FreeThreadResources(); | 337 isolate_->regexp_stack()->FreeThreadResources(); |
346 isolate_->bootstrapper()->FreeThreadResources(); | 338 isolate_->bootstrapper()->FreeThreadResources(); |
347 } | 339 } |
348 | 340 |
349 | 341 |
350 bool ThreadManager::IsArchived() { | 342 bool ThreadManager::IsArchived() { |
351 Isolate::PerIsolateThreadData* data = | 343 Isolate::PerIsolateThreadData* data = |
352 isolate_->FindPerThreadDataForThisThread(); | 344 isolate_->FindPerThreadDataForThisThread(); |
353 return data != NULL && data->thread_state() != NULL; | 345 return data != NULL && data->thread_state() != NULL; |
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389 state = state->Next()) { | 381 state = state->Next()) { |
390 if (thread_id.Equals(state->id())) { | 382 if (thread_id.Equals(state->id())) { |
391 state->set_terminate_on_restore(true); | 383 state->set_terminate_on_restore(true); |
392 } | 384 } |
393 } | 385 } |
394 } | 386 } |
395 | 387 |
396 | 388 |
397 } // namespace internal | 389 } // namespace internal |
398 } // namespace v8 | 390 } // namespace v8 |
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