| // Copyright 2006-2008 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #ifndef V8_ZONE_INL_H_ |
| #define V8_ZONE_INL_H_ |
| |
| #include "zone.h" |
| #include "v8-counters.h" |
| |
| namespace v8 { namespace internal { |
| |
| |
| inline void* Zone::New(int size) { |
| ASSERT(AssertNoZoneAllocation::allow_allocation()); |
| ASSERT(ZoneScope::nesting() > 0); |
| // Round up the requested size to fit the alignment. |
| size = RoundUp(size, kAlignment); |
| |
| // Check if the requested size is available without expanding. |
| Address result = position_; |
| if ((position_ += size) > limit_) result = NewExpand(size); |
| |
| // Check that the result has the proper alignment and return it. |
| ASSERT(IsAddressAligned(result, kAlignment, 0)); |
| return reinterpret_cast<void*>(result); |
| } |
| |
| |
| template <typename T> |
| T* Zone::NewArray(int length) { |
| return static_cast<T*>(Zone::New(length * sizeof(T))); |
| } |
| |
| |
| bool Zone::excess_allocation() { |
| return segment_bytes_allocated_ > zone_excess_limit_; |
| } |
| |
| |
| void Zone::adjust_segment_bytes_allocated(int delta) { |
| segment_bytes_allocated_ += delta; |
| Counters::zone_segment_bytes.Set(segment_bytes_allocated_); |
| } |
| |
| |
| } } // namespace v8::internal |
| |
| #endif // V8_ZONE_INL_H_ |