blob: 247ab05d48677365066aa82dec921300e2fc43f0 [file] [log] [blame]
/*
* Copyright (C) 2013 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER 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 "sky/engine/wtf/WTF.h"
#include "sky/engine/wtf/DefaultAllocator.h"
#include "sky/engine/wtf/FastMalloc.h"
namespace WTF {
extern void initializeThreading();
bool s_initialized;
bool s_shutdown;
bool Partitions::s_initialized;
PartitionAllocatorGeneric Partitions::m_bufferAllocator;
void initialize()
{
// WTF, and Blink in general, cannot handle being re-initialized, even if shutdown first.
// Make that explicit here.
ASSERT(!s_initialized);
ASSERT(!s_shutdown);
s_initialized = true;
Partitions::initialize();
initializeThreading();
}
void shutdown()
{
ASSERT(s_initialized);
ASSERT(!s_shutdown);
s_shutdown = true;
Partitions::shutdown();
}
bool isShutdown()
{
return s_shutdown;
}
void Partitions::initialize()
{
static int lock = 0;
// Guard against two threads hitting here in parallel.
spinLockLock(&lock);
if (!s_initialized) {
m_bufferAllocator.init();
s_initialized = true;
}
spinLockUnlock(&lock);
}
void Partitions::shutdown()
{
fastMallocShutdown();
m_bufferAllocator.shutdown();
}
} // namespace WTF