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88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
/*
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* Copyright (C) 2013 Google 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 are
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* met:
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*
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* * 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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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY 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/wtf/WTF.h"
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#include "sky/engine/wtf/DefaultAllocator.h"
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#include "sky/engine/wtf/FastMalloc.h"
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namespace WTF {
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extern void initializeThreading();
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bool s_initialized;
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bool s_shutdown;
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bool Partitions::s_initialized;
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PartitionAllocatorGeneric Partitions::m_bufferAllocator;
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void initialize()
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{
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// WTF, and Blink in general, cannot handle being re-initialized, even if shutdown first.
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// Make that explicit here.
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ASSERT(!s_initialized);
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ASSERT(!s_shutdown);
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s_initialized = true;
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Partitions::initialize();
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initializeThreading();
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}
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void shutdown()
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{
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ASSERT(s_initialized);
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ASSERT(!s_shutdown);
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s_shutdown = true;
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Partitions::shutdown();
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}
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bool isShutdown()
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{
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return s_shutdown;
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}
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void Partitions::initialize()
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{
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static int lock = 0;
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// Guard against two threads hitting here in parallel.
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spinLockLock(&lock);
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if (!s_initialized) {
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m_bufferAllocator.init();
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s_initialized = true;
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}
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spinLockUnlock(&lock);
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}
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void Partitions::shutdown()
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{
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fastMallocShutdown();
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m_bufferAllocator.shutdown();
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}
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} // namespace WTF
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