webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 0 insertions, 166 deletions

diff --git a/Source/JavaScriptCore/heap/CopiedAllocator.h b/Source/JavaScriptCore/heap/CopiedAllocator.h
deleted file mode 100644
index 3dfc9a7fe..000000000
--- a/Source/JavaScriptCore/heap/CopiedAllocator.h
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * Copyright (C) 2011 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 CopiedAllocator_h
-#define CopiedAllocator_h
-
-#include "CopiedBlock.h"
-#include <wtf/CheckedBoolean.h>
-#include <wtf/DataLog.h>
-
-namespace JSC {
-
-class CopiedAllocator {
-public:
-    CopiedAllocator();
-    
-    bool fastPathShouldSucceed(size_t bytes) const;
-    CheckedBoolean tryAllocate(size_t bytes, void** outPtr);
-    CheckedBoolean tryAllocateDuringCopying(size_t bytes, void** outPtr);
-    CheckedBoolean tryReallocate(void *oldPtr, size_t oldBytes, size_t newBytes);
-    void* forceAllocate(size_t bytes);
-    CopiedBlock* resetCurrentBlock();
-    void setCurrentBlock(CopiedBlock*);
-    size_t currentCapacity();
-    
-    bool isValid() { return !!m_currentBlock; }
-
-    CopiedBlock* currentBlock() { return m_currentBlock; }
-
-    // Yes, these are public. No, that doesn't mean you can play with them.
-    // If I had made them private then I'd have to list off all of the JIT
-    // classes and functions that are entitled to modify these directly, and
-    // that would have been gross.
-    size_t m_currentRemaining;
-    char* m_currentPayloadEnd;
-    CopiedBlock* m_currentBlock; 
-};
-
-inline CopiedAllocator::CopiedAllocator()
-    : m_currentRemaining(0)
-    , m_currentPayloadEnd(0)
-    , m_currentBlock(0)
-{
-}
-
-inline bool CopiedAllocator::fastPathShouldSucceed(size_t bytes) const
-{
-    ASSERT(is8ByteAligned(reinterpret_cast<void*>(bytes)));
-    
-    return bytes <= m_currentRemaining;
-}
-
-inline CheckedBoolean CopiedAllocator::tryAllocate(size_t bytes, void** outPtr)
-{
-    ASSERT(is8ByteAligned(reinterpret_cast<void*>(bytes)));
-    
-    // This code is written in a gratuitously low-level manner, in order to
-    // serve as a kind of template for what the JIT would do. Note that the
-    // way it's written it ought to only require one register, which doubles
-    // as the result, provided that the compiler does a minimal amount of
-    // control flow simplification and the bytes argument is a constant.
-    
-    size_t currentRemaining = m_currentRemaining;
-    if (bytes > currentRemaining)
-        return false;
-    currentRemaining -= bytes;
-    m_currentRemaining = currentRemaining;
-    *outPtr = m_currentPayloadEnd - currentRemaining - bytes;
-
-    ASSERT(is8ByteAligned(*outPtr));
-
-    return true;
-}
-
-inline CheckedBoolean CopiedAllocator::tryAllocateDuringCopying(size_t bytes, void** outPtr)
-{
-    if (!tryAllocate(bytes, outPtr))
-        return false;
-    m_currentBlock->reportLiveBytesDuringCopying(bytes);
-    return true;
-}
-
-inline CheckedBoolean CopiedAllocator::tryReallocate(
-    void* oldPtr, size_t oldBytes, size_t newBytes)
-{
-    ASSERT(is8ByteAligned(oldPtr));
-    ASSERT(is8ByteAligned(reinterpret_cast<void*>(oldBytes)));
-    ASSERT(is8ByteAligned(reinterpret_cast<void*>(newBytes)));
-    
-    ASSERT(newBytes > oldBytes);
-    
-    size_t additionalBytes = newBytes - oldBytes;
-    
-    size_t currentRemaining = m_currentRemaining;
-    if (m_currentPayloadEnd - currentRemaining - oldBytes != static_cast<char*>(oldPtr))
-        return false;
-    
-    if (additionalBytes > currentRemaining)
-        return false;
-    
-    m_currentRemaining = currentRemaining - additionalBytes;
-    
-    return true;
-}
-
-inline void* CopiedAllocator::forceAllocate(size_t bytes)
-{
-    void* result = 0; // Needed because compilers don't realize this will always be assigned.
-    CheckedBoolean didSucceed = tryAllocate(bytes, &result);
-    ASSERT(didSucceed);
-    return result;
-}
-
-inline CopiedBlock* CopiedAllocator::resetCurrentBlock()
-{
-    CopiedBlock* result = m_currentBlock;
-    if (result) {
-        result->m_remaining = m_currentRemaining;
-        m_currentBlock = 0;
-        m_currentRemaining = 0;
-        m_currentPayloadEnd = 0;
-    }
-    return result;
-}
-
-inline void CopiedAllocator::setCurrentBlock(CopiedBlock* newBlock)
-{
-    ASSERT(!m_currentBlock);
-    m_currentBlock = newBlock;
-    ASSERT(newBlock);
-    m_currentRemaining = newBlock->m_remaining;
-    m_currentPayloadEnd = newBlock->payloadEnd();
-}
-
-inline size_t CopiedAllocator::currentCapacity()
-{
-    if (!m_currentBlock)
-        return 0;
-    return m_currentBlock->capacity();
-}
-
-} // namespace JSC
-
-#endif