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Side by Side Diff: src/execution.h

Issue 181453002: Reset trunk to 3.24.35.4 (Closed) Base URL: https://v8.googlecode.com/svn/trunk
Patch Set: Created 6 years, 9 months ago
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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
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38 enum InterruptFlag { 38 enum InterruptFlag {
39 INTERRUPT = 1 << 0, 39 INTERRUPT = 1 << 0,
40 DEBUGBREAK = 1 << 1, 40 DEBUGBREAK = 1 << 1,
41 DEBUGCOMMAND = 1 << 2, 41 DEBUGCOMMAND = 1 << 2,
42 PREEMPT = 1 << 3, 42 PREEMPT = 1 << 3,
43 TERMINATE = 1 << 4, 43 TERMINATE = 1 << 4,
44 GC_REQUEST = 1 << 5, 44 GC_REQUEST = 1 << 5,
45 FULL_DEOPT = 1 << 6, 45 FULL_DEOPT = 1 << 6,
46 INSTALL_CODE = 1 << 7, 46 INSTALL_CODE = 1 << 7,
47 API_INTERRUPT = 1 << 8, 47 API_INTERRUPT = 1 << 8,
48 DEOPT_MARKED_ALLOCATION_SITES = 1 << 9 48 DEOPT_MARKED_CODE = 1 << 9
49 }; 49 };
50 50
51 51
52 class Isolate; 52 class Isolate;
53 53
54 54
55 class Execution : public AllStatic { 55 class Execution : public AllStatic {
56 public: 56 public:
57 // Call a function, the caller supplies a receiver and an array 57 // Call a function, the caller supplies a receiver and an array
58 // of arguments. Arguments are Object* type. After function returns, 58 // of arguments. Arguments are Object* type. After function returns,
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168 168
169 // Get a function delegate (or undefined) for the given non-function 169 // Get a function delegate (or undefined) for the given non-function
170 // object. Used for support calling objects as constructors. 170 // object. Used for support calling objects as constructors.
171 static Handle<Object> GetConstructorDelegate(Isolate* isolate, 171 static Handle<Object> GetConstructorDelegate(Isolate* isolate,
172 Handle<Object> object); 172 Handle<Object> object);
173 static Handle<Object> TryGetConstructorDelegate(Isolate* isolate, 173 static Handle<Object> TryGetConstructorDelegate(Isolate* isolate,
174 Handle<Object> object, 174 Handle<Object> object,
175 bool* has_pending_exception); 175 bool* has_pending_exception);
176 176
177 static void RunMicrotasks(Isolate* isolate); 177 static void RunMicrotasks(Isolate* isolate);
178 static void EnqueueMicrotask(Isolate* isolate, Handle<Object> microtask);
179 }; 178 };
180 179
181 180
182 class ExecutionAccess; 181 class ExecutionAccess;
183 182
184 183
185 // StackGuard contains the handling of the limits that are used to limit the 184 // StackGuard contains the handling of the limits that are used to limit the
186 // number of nested invocations of JavaScript and the stack size used in each 185 // number of nested invocations of JavaScript and the stack size used in each
187 // invocation. 186 // invocation.
188 class StackGuard { 187 class StackGuard {
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216 void DebugBreak(); 215 void DebugBreak();
217 bool IsDebugCommand(); 216 bool IsDebugCommand();
218 void DebugCommand(); 217 void DebugCommand();
219 #endif 218 #endif
220 bool IsGCRequest(); 219 bool IsGCRequest();
221 void RequestGC(); 220 void RequestGC();
222 bool IsInstallCodeRequest(); 221 bool IsInstallCodeRequest();
223 void RequestInstallCode(); 222 void RequestInstallCode();
224 bool IsFullDeopt(); 223 bool IsFullDeopt();
225 void FullDeopt(); 224 void FullDeopt();
226 bool IsDeoptMarkedAllocationSites(); 225 bool IsDeoptMarkedCode();
227 void DeoptMarkedAllocationSites(); 226 void DeoptMarkedCode();
228 void Continue(InterruptFlag after_what); 227 void Continue(InterruptFlag after_what);
229 228
230 void RequestInterrupt(InterruptCallback callback, void* data); 229 void RequestInterrupt(InterruptCallback callback, void* data);
231 void ClearInterrupt(); 230 void ClearInterrupt();
232 bool IsAPIInterrupt(); 231 bool IsAPIInterrupt();
233 void InvokeInterruptCallback(); 232 void InvokeInterruptCallback();
234 233
235 // This provides an asynchronous read of the stack limits for the current 234 // This provides an asynchronous read of the stack limits for the current
236 // thread. There are no locks protecting this, but it is assumed that you 235 // thread. There are no locks protecting this, but it is assumed that you
237 // have the global V8 lock if you are using multiple V8 threads. 236 // have the global V8 lock if you are using multiple V8 threads.
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275 inline void set_interrupt_limits(const ExecutionAccess& lock); 274 inline void set_interrupt_limits(const ExecutionAccess& lock);
276 275
277 // Reset limits to actual values. For example after handling interrupt. 276 // Reset limits to actual values. For example after handling interrupt.
278 // You should hold the ExecutionAccess lock when calling this method. 277 // You should hold the ExecutionAccess lock when calling this method.
279 inline void reset_limits(const ExecutionAccess& lock); 278 inline void reset_limits(const ExecutionAccess& lock);
280 279
281 // Enable or disable interrupts. 280 // Enable or disable interrupts.
282 void EnableInterrupts(); 281 void EnableInterrupts();
283 void DisableInterrupts(); 282 void DisableInterrupts();
284 283
285 #if V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_A64 284 #if V8_TARGET_ARCH_X64
286 static const uintptr_t kInterruptLimit = V8_UINT64_C(0xfffffffffffffffe); 285 static const uintptr_t kInterruptLimit = V8_UINT64_C(0xfffffffffffffffe);
287 static const uintptr_t kIllegalLimit = V8_UINT64_C(0xfffffffffffffff8); 286 static const uintptr_t kIllegalLimit = V8_UINT64_C(0xfffffffffffffff8);
288 #else 287 #else
289 static const uintptr_t kInterruptLimit = 0xfffffffe; 288 static const uintptr_t kInterruptLimit = 0xfffffffe;
290 static const uintptr_t kIllegalLimit = 0xfffffff8; 289 static const uintptr_t kIllegalLimit = 0xfffffff8;
291 #endif 290 #endif
292 291
293 class ThreadLocal { 292 class ThreadLocal {
294 public: 293 public:
295 ThreadLocal() { Clear(); } 294 ThreadLocal() { Clear(); }
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331 friend class StackLimitCheck; 330 friend class StackLimitCheck;
332 friend class PostponeInterruptsScope; 331 friend class PostponeInterruptsScope;
333 332
334 DISALLOW_COPY_AND_ASSIGN(StackGuard); 333 DISALLOW_COPY_AND_ASSIGN(StackGuard);
335 }; 334 };
336 335
337 336
338 } } // namespace v8::internal 337 } } // namespace v8::internal
339 338
340 #endif // V8_EXECUTION_H_ 339 #endif // V8_EXECUTION_H_
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