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e0fd75b5ab
This caused us to lose our gn check certification. :( Turns out gn check was just ignoring all the header paths it didn't understand and so gn check passing for sky wasn't meaning much. I tried to straighten out some of the mess in this CL, but its going to take several more rounds of massaging before gn check passes again. On the bright side (almost) all of our headers are absolute now. Turns out my script (attached to the bug) didn't notice ../ includes but I'll fix that in the next patch. R=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/746023002
125 lines
4.6 KiB
C++
125 lines
4.6 KiB
C++
/*
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* Copyright (C) 2011 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sky/engine/config.h"
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#include "sky/engine/wtf/BitVector.h"
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#include <string.h>
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#include <algorithm>
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#include "sky/engine/wtf/LeakAnnotations.h"
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#include "sky/engine/wtf/PartitionAlloc.h"
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#include "sky/engine/wtf/PrintStream.h"
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#include "sky/engine/wtf/WTF.h"
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namespace WTF {
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void BitVector::setSlow(const BitVector& other)
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{
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uintptr_t newBitsOrPointer;
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if (other.isInline())
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newBitsOrPointer = other.m_bitsOrPointer;
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else {
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OutOfLineBits* newOutOfLineBits = OutOfLineBits::create(other.size());
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memcpy(newOutOfLineBits->bits(), other.bits(), byteCount(other.size()));
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newBitsOrPointer = bitwise_cast<uintptr_t>(newOutOfLineBits) >> 1;
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}
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if (!isInline())
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OutOfLineBits::destroy(outOfLineBits());
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m_bitsOrPointer = newBitsOrPointer;
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}
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void BitVector::resize(size_t numBits)
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{
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if (numBits <= maxInlineBits()) {
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if (isInline())
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return;
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OutOfLineBits* myOutOfLineBits = outOfLineBits();
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m_bitsOrPointer = makeInlineBits(*myOutOfLineBits->bits());
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OutOfLineBits::destroy(myOutOfLineBits);
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return;
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}
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resizeOutOfLine(numBits);
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}
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void BitVector::clearAll()
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{
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if (isInline())
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m_bitsOrPointer = makeInlineBits(0);
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else
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memset(outOfLineBits()->bits(), 0, byteCount(size()));
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}
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BitVector::OutOfLineBits* BitVector::OutOfLineBits::create(size_t numBits)
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{
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// Because of the way BitVector stores the pointer, memory tools
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// will erroneously report a leak here.
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WTF_ANNOTATE_SCOPED_MEMORY_LEAK;
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numBits = (numBits + bitsInPointer() - 1) & ~(bitsInPointer() - 1);
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size_t size = sizeof(OutOfLineBits) + sizeof(uintptr_t) * (numBits / bitsInPointer());
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void* allocation = partitionAllocGeneric(Partitions::getBufferPartition(), size);
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OutOfLineBits* result = new (NotNull, allocation) OutOfLineBits(numBits);
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return result;
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}
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void BitVector::OutOfLineBits::destroy(OutOfLineBits* outOfLineBits)
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{
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partitionFreeGeneric(Partitions::getBufferPartition(), outOfLineBits);
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}
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void BitVector::resizeOutOfLine(size_t numBits)
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{
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ASSERT(numBits > maxInlineBits());
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OutOfLineBits* newOutOfLineBits = OutOfLineBits::create(numBits);
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size_t newNumWords = newOutOfLineBits->numWords();
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if (isInline()) {
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// Make sure that all of the bits are zero in case we do a no-op resize.
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*newOutOfLineBits->bits() = m_bitsOrPointer & ~(static_cast<uintptr_t>(1) << maxInlineBits());
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memset(newOutOfLineBits->bits() + 1, 0, (newNumWords - 1) * sizeof(void*));
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} else {
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if (numBits > size()) {
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size_t oldNumWords = outOfLineBits()->numWords();
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memcpy(newOutOfLineBits->bits(), outOfLineBits()->bits(), oldNumWords * sizeof(void*));
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memset(newOutOfLineBits->bits() + oldNumWords, 0, (newNumWords - oldNumWords) * sizeof(void*));
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} else
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memcpy(newOutOfLineBits->bits(), outOfLineBits()->bits(), newOutOfLineBits->numWords() * sizeof(void*));
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OutOfLineBits::destroy(outOfLineBits());
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}
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m_bitsOrPointer = bitwise_cast<uintptr_t>(newOutOfLineBits) >> 1;
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}
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void BitVector::dump(PrintStream& out)
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{
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for (size_t i = 0; i < size(); ++i) {
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if (get(i))
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out.printf("1");
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else
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out.printf("-");
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}
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}
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} // namespace WTF
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