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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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344 size_t size() { return size_; } | 344 size_t size() { return size_; } |
345 | 345 |
346 // Commits real memory. Returns whether the operation succeeded. | 346 // Commits real memory. Returns whether the operation succeeded. |
347 bool Commit(void* address, size_t size, bool is_executable); | 347 bool Commit(void* address, size_t size, bool is_executable); |
348 | 348 |
349 // Uncommit real memory. Returns whether the operation succeeded. | 349 // Uncommit real memory. Returns whether the operation succeeded. |
350 bool Uncommit(void* address, size_t size); | 350 bool Uncommit(void* address, size_t size); |
351 | 351 |
352 void Release() { | 352 void Release() { |
353 ASSERT(IsReserved()); | 353 ASSERT(IsReserved()); |
354 // Notice: Order is somportant here. The VirtualMemory object might live | 354 // Notice: Order is important here. The VirtualMemory object might live |
355 // inside the allocated region. | 355 // inside the allocated region. |
356 void* address = address_; | 356 void* address = address_; |
357 size_t size = size_; | 357 size_t size = size_; |
358 Reset(); | 358 Reset(); |
359 ReleaseRegion(address, size); | 359 bool result = ReleaseRegion(address, size); |
| 360 USE(result); |
| 361 ASSERT(result); |
360 } | 362 } |
361 | 363 |
362 // Assign control of the reserved region to a different VirtualMemory object. | 364 // Assign control of the reserved region to a different VirtualMemory object. |
363 // The old object is no longer functional (IsReserved() returns false). | 365 // The old object is no longer functional (IsReserved() returns false). |
364 void TakeControl(VirtualMemory* from) { | 366 void TakeControl(VirtualMemory* from) { |
365 ASSERT(!IsReserved()); | 367 ASSERT(!IsReserved()); |
366 address_ = from->address_; | 368 address_ = from->address_; |
367 size_ = from->size_; | 369 size_ = from->size_; |
368 from->Reset(); | 370 from->Reset(); |
369 } | 371 } |
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679 Atomic32 active_; | 681 Atomic32 active_; |
680 PlatformData* data_; // Platform specific data. | 682 PlatformData* data_; // Platform specific data. |
681 int samples_taken_; // Counts stack samples taken. | 683 int samples_taken_; // Counts stack samples taken. |
682 DISALLOW_IMPLICIT_CONSTRUCTORS(Sampler); | 684 DISALLOW_IMPLICIT_CONSTRUCTORS(Sampler); |
683 }; | 685 }; |
684 | 686 |
685 | 687 |
686 } } // namespace v8::internal | 688 } } // namespace v8::internal |
687 | 689 |
688 #endif // V8_PLATFORM_H_ | 690 #endif // V8_PLATFORM_H_ |
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