/* * 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 "config.h" #include "WTF.h" #include "wtf/DefaultAllocator.h" #include "wtf/FastMalloc.h" #ifndef NDEBUG #include "wtf/MainThread.h" #endif namespace WTF { extern void initializeThreading(); bool s_initialized; bool s_shutdown; bool Partitions::s_initialized; PartitionAllocatorGeneric Partitions::m_bufferAllocator; void initialize(TimeFunction currentTimeFunction, TimeFunction monotonicallyIncreasingTimeFunction) { // 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(); setCurrentTimeFunction(currentTimeFunction); setMonotonicallyIncreasingTimeFunction(monotonicallyIncreasingTimeFunction); 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) { s_initialized = true; m_bufferAllocator.init(); } spinLockUnlock(&lock); } void Partitions::shutdown() { fastMallocShutdown(); m_bufferAllocator.shutdown(); } } // namespace WTF