JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / heap / SuperRegion.cpp

diff --git a/heap/SuperRegion.cpp b/heap/SuperRegion.cpp
deleted file mode 100644 (file)
index 157fe2e..0000000
--- a/heap/SuperRegion.cpp
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Copyright (C) 2013 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. AND ITS 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 APPLE INC. OR ITS 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.
- */
-
-#include "config.h"
-#include "SuperRegion.h"
-
-#include "JSCInlines.h"
-#include "Region.h"
-
-namespace JSC {
-
-const uint64_t SuperRegion::s_fixedHeapMemoryPoolSize = 4 * 1024 * static_cast<uint64_t>(MB);
-
-SuperRegion::SuperRegion()
-    : MetaAllocator(Region::s_regionSize, Region::s_regionSize)
-    , m_reservationBase(0)
-{
-#if ENABLE(SUPER_REGION)
-    // Over-allocate so that we can make sure that we're aligned to the size of Regions.
-    m_reservation = PageReservation::reserve(s_fixedHeapMemoryPoolSize + Region::s_regionSize, OSAllocator::JSGCHeapPages);
-    m_reservationBase = getAlignedBase(m_reservation);
-    addFreshFreeSpace(m_reservationBase, s_fixedHeapMemoryPoolSize);
-#else
-    UNUSED_PARAM(m_reservation);
-    UNUSED_PARAM(m_reservationBase);
-#endif
-}
-
-SuperRegion::~SuperRegion()
-{
-#if ENABLE(SUPER_REGION)
-    m_reservation.deallocate();
-#endif
-}
-
-void* SuperRegion::getAlignedBase(PageReservation& reservation)
-{
-    for (char* current = static_cast<char*>(reservation.base()); current < static_cast<char*>(reservation.base()) + Region::s_regionSize; current += pageSize()) {
-        if (!(reinterpret_cast<size_t>(current) & ~Region::s_regionMask))
-            return current;
-    }
-    ASSERT_NOT_REACHED();
-    return 0;
-}
-
-void* SuperRegion::allocateNewSpace(size_t&)
-{
-    return 0;
-}
-
-void SuperRegion::notifyNeedPage(void* page)
-{
-    m_reservation.commit(page, Region::s_regionSize);
-}
-
-void SuperRegion::notifyPageIsFree(void* page)
-{
-    m_reservation.decommit(page, Region::s_regionSize);
-}
-
-} // namespace JSC