Imported WebKit commit fce473cb4d55aa9fe9d0b0322a2fffecb731b961 (http://svn.webkit.org/repository/webkit/trunk@106560)

1 files changed, 49 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/heap/BumpSpace.cpp b/Source/JavaScriptCore/heap/BumpSpace.cpp
new file mode 100644
index 000000000..4eb0284dd
--- /dev/null
+++ b/Source/JavaScriptCore/heap/BumpSpace.cpp
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+/*
+ * 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. 
+ */
+
+#include "config.h"
+#include "BumpSpace.h"
+
+#include "BumpSpaceInlineMethods.h"
+
+namespace JSC {
+
+CheckedBoolean BumpSpace::tryAllocateSlowCase(size_t bytes, void** outPtr)
+{
+    if (isOversize(bytes))
+        return tryAllocateOversize(bytes, outPtr);
+    
+    m_totalMemoryUtilized += static_cast<size_t>(static_cast<char*>(m_currentBlock->m_offset) - m_currentBlock->m_payload);
+    if (!addNewBlock()) {
+        *outPtr = 0;
+        return false;
+    }
+    m_toSpaceFilter.add(reinterpret_cast<Bits>(m_currentBlock));
+    m_toSpaceSet.add(m_currentBlock);
+    *outPtr = allocateFromBlock(m_currentBlock, bytes);
+    return true;
+}
+
+} // namespace JSC