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Diffstat (limited to 'Source/JavaScriptCore/runtime/ConservativeSet.h')
-rw-r--r-- | Source/JavaScriptCore/runtime/ConservativeSet.h | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/Source/JavaScriptCore/runtime/ConservativeSet.h b/Source/JavaScriptCore/runtime/ConservativeSet.h deleted file mode 100644 index d078606..0000000 --- a/Source/JavaScriptCore/runtime/ConservativeSet.h +++ /dev/null @@ -1,101 +0,0 @@ -/* - * Copyright (C) 2009 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 ConservativeRoots_h -#define ConservativeRoots_h - -#include "Heap.h" -#include <wtf/OSAllocator.h> -#include <wtf/Vector.h> - -namespace JSC { - -class JSCell; -class Heap; - -// May contain duplicates. - -class ConservativeRoots { -public: - ConservativeRoots(Heap*); - ~ConservativeRoots(); - - void add(void*); - void add(void* begin, void* end); - - size_t size(); - JSCell** roots(); - -private: - static const size_t inlineCapacity = 128; - static const size_t nonInlineCapacity = 8192 / sizeof(JSCell*); - - void grow(); - - Heap* m_heap; - JSCell** m_roots; - size_t m_size; - size_t m_capacity; - JSCell* m_inlineRoots[inlineCapacity]; -}; - -inline ConservativeRoots::ConservativeRoots(Heap* heap) - : m_heap(heap) - , m_roots(m_inlineRoots) - , m_size(0) - , m_capacity(inlineCapacity) -{ -} - -inline ConservativeRoots::~ConservativeRoots() -{ - if (m_roots != m_inlineRoots) - OSAllocator::decommitAndRelease(m_roots, m_capacity * sizeof(JSCell*)); -} - -inline void ConservativeRoots::add(void* p) -{ - if (!m_heap->contains(p)) - return; - - if (m_size == m_capacity) - grow(); - - m_roots[m_size++] = reinterpret_cast<JSCell*>(p); -} - -inline size_t ConservativeRoots::size() -{ - return m_size; -} - -inline JSCell** ConservativeRoots::roots() -{ - return m_roots; -} - -} // namespace JSC - -#endif // ConservativeRoots_h |