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authorLorry Tar Creator <lorry-tar-importer@lorry>2015-05-20 09:56:07 +0000
committerLorry Tar Creator <lorry-tar-importer@lorry>2015-05-20 09:56:07 +0000
commit41386e9cb918eed93b3f13648cbef387e371e451 (patch)
treea97f9d7bd1d9d091833286085f72da9d83fd0606 /Source/JavaScriptCore/heap/FullGCActivityCallback.cpp
parente15dd966d523731101f70ccf768bba12435a0208 (diff)
downloadWebKitGtk-tarball-41386e9cb918eed93b3f13648cbef387e371e451.tar.gz
webkitgtk-2.4.9webkitgtk-2.4.9
Diffstat (limited to 'Source/JavaScriptCore/heap/FullGCActivityCallback.cpp')
-rw-r--r--Source/JavaScriptCore/heap/FullGCActivityCallback.cpp109
1 files changed, 0 insertions, 109 deletions
diff --git a/Source/JavaScriptCore/heap/FullGCActivityCallback.cpp b/Source/JavaScriptCore/heap/FullGCActivityCallback.cpp
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--- a/Source/JavaScriptCore/heap/FullGCActivityCallback.cpp
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Copyright (C) 2014 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 "FullGCActivityCallback.h"
-
-#include "VM.h"
-
-namespace JSC {
-
-#if USE(CF) || PLATFORM(EFL)
-
-#if !PLATFORM(IOS)
-const double pagingTimeOut = 0.1; // Time in seconds to allow opportunistic timer to iterate over all blocks to see if the Heap is paged out.
-#endif
-
-FullGCActivityCallback::FullGCActivityCallback(Heap* heap)
- : GCActivityCallback(heap)
-{
-}
-
-void FullGCActivityCallback::doCollection()
-{
- Heap& heap = m_vm->heap;
- m_didSyncGCRecently = false;
-
-#if !PLATFORM(IOS)
- double startTime = WTF::monotonicallyIncreasingTime();
- if (heap.isPagedOut(startTime + pagingTimeOut)) {
- cancel();
- heap.increaseLastFullGCLength(pagingTimeOut);
- return;
- }
-#endif
-
- heap.collect(FullCollection);
-}
-
-double FullGCActivityCallback::lastGCLength()
-{
- return m_vm->heap.lastFullGCLength();
-}
-
-double FullGCActivityCallback::deathRate()
-{
- Heap* heap = &m_vm->heap;
- size_t sizeBefore = heap->sizeBeforeLastFullCollection();
- size_t sizeAfter = heap->sizeAfterLastFullCollection();
- if (!sizeBefore)
- return 1.0;
- return static_cast<double>(sizeBefore - sizeAfter) / static_cast<double>(sizeBefore);
-}
-
-double FullGCActivityCallback::gcTimeSlice(size_t bytes)
-{
- return std::min((static_cast<double>(bytes) / MB) * Options::percentCPUPerMBForFullTimer(), Options::collectionTimerMaxPercentCPU());
-}
-
-#else
-
-FullGCActivityCallback::FullGCActivityCallback(Heap* heap)
- : GCActivityCallback(heap)
-{
-}
-
-void FullGCActivityCallback::doCollection()
-{
-}
-
-double FullGCActivityCallback::lastGCLength()
-{
- return 0;
-}
-
-double FullGCActivityCallback::deathRate()
-{
- return 0;
-}
-
-double FullGCActivityCallback::gcTimeSlice(size_t)
-{
- return 0;
-}
-
-#endif // USE(CF) || PLATFORM(EFL)
-
-} // namespace JSC