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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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390 bool VirtualMemory::ReleaseRegion(void* base, size_t size) { | 390 bool VirtualMemory::ReleaseRegion(void* base, size_t size) { |
391 return munmap(base, size) == 0; | 391 return munmap(base, size) == 0; |
392 } | 392 } |
393 | 393 |
394 | 394 |
395 bool VirtualMemory::HasLazyCommits() { | 395 bool VirtualMemory::HasLazyCommits() { |
396 // TODO(alph): implement for the platform. | 396 // TODO(alph): implement for the platform. |
397 return false; | 397 return false; |
398 } | 398 } |
399 | 399 |
400 | |
401 void OS::SetUp() { | |
402 // Seed the random number generator. We preserve microsecond resolution. | |
403 uint64_t seed = static_cast<uint64_t>(TimeCurrentMillis()) ^ (getpid() << 16); | |
404 srandom(static_cast<unsigned int>(seed)); | |
405 } | |
406 | |
407 | |
408 } } // namespace v8::internal | 400 } } // namespace v8::internal |
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