/* * Copyright (C) 2016 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 Object_h #define Object_h #include <cstddef> namespace bmalloc { class Chunk; class SmallLine; class SmallPage; class Object { public: Object(void*); Object(Chunk*, void*); Object(Chunk* chunk, size_t offset) : m_chunk(chunk) , m_offset(offset) { } Chunk* chunk() { return m_chunk; } size_t offset() { return m_offset; } char* address(); SmallLine* line(); SmallPage* page(); Object operator+(size_t); Object operator-(size_t); bool operator<=(const Object&); private: Chunk* m_chunk; size_t m_offset; }; inline Object Object::operator+(size_t offset) { return Object(m_chunk, m_offset + offset); } inline Object Object::operator-(size_t offset) { return Object(m_chunk, m_offset - offset); } inline bool Object::operator<=(const Object& other) { BASSERT(m_chunk == other.m_chunk); return m_offset <= other.m_offset; } }; // namespace bmalloc #endif // Object_h