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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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749 | 749 |
750 | 750 |
751 char* OS::StrChr(char* str, int c) { | 751 char* OS::StrChr(char* str, int c) { |
752 return const_cast<char*>(strchr(str, c)); | 752 return const_cast<char*>(strchr(str, c)); |
753 } | 753 } |
754 | 754 |
755 | 755 |
756 void OS::StrNCpy(Vector<char> dest, const char* src, size_t n) { | 756 void OS::StrNCpy(Vector<char> dest, const char* src, size_t n) { |
757 // Use _TRUNCATE or strncpy_s crashes (by design) if buffer is too small. | 757 // Use _TRUNCATE or strncpy_s crashes (by design) if buffer is too small. |
758 size_t buffer_size = static_cast<size_t>(dest.length()); | 758 size_t buffer_size = static_cast<size_t>(dest.length()); |
759 if (n + 1 > buffer_size) // count for trailing '\0' | 759 if (n + 1 > buffer_size) // count for trailing '\0' |
760 n = _TRUNCATE; | 760 n = _TRUNCATE; |
761 int result = strncpy_s(dest.start(), dest.length(), src, n); | 761 int result = strncpy_s(dest.start(), dest.length(), src, n); |
762 USE(result); | 762 USE(result); |
763 ASSERT(result == 0 || (n == _TRUNCATE && result == STRUNCATE)); | 763 ASSERT(result == 0 || (n == _TRUNCATE && result == STRUNCATE)); |
764 } | 764 } |
765 | 765 |
766 | 766 |
767 // We keep the lowest and highest addresses mapped as a quick way of | 767 // We keep the lowest and highest addresses mapped as a quick way of |
768 // determining that pointers are outside the heap (used mostly in assertions | 768 // determining that pointers are outside the heap (used mostly in assertions |
769 // and verification). The estimate is conservative, ie, not all addresses in | 769 // and verification). The estimate is conservative, ie, not all addresses in |
770 // 'allocated' space are actually allocated to our heap. The range is | 770 // 'allocated' space are actually allocated to our heap. The range is |
771 // [lowest, highest), inclusive on the low and and exclusive on the high end. | 771 // [lowest, highest), inclusive on the low and and exclusive on the high end. |
772 static void* lowest_ever_allocated = reinterpret_cast<void*>(-1); | 772 static void* lowest_ever_allocated = reinterpret_cast<void*>(-1); |
773 static void* highest_ever_allocated = reinterpret_cast<void*>(0); | 773 static void* highest_ever_allocated = reinterpret_cast<void*>(0); |
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2029 | 2029 |
2030 void Sampler::Stop() { | 2030 void Sampler::Stop() { |
2031 ASSERT(IsActive()); | 2031 ASSERT(IsActive()); |
2032 SamplerThread::RemoveActiveSampler(this); | 2032 SamplerThread::RemoveActiveSampler(this); |
2033 SetActive(false); | 2033 SetActive(false); |
2034 } | 2034 } |
2035 | 2035 |
2036 #endif // ENABLE_LOGGING_AND_PROFILING | 2036 #endif // ENABLE_LOGGING_AND_PROFILING |
2037 | 2037 |
2038 } } // namespace v8::internal | 2038 } } // namespace v8::internal |
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