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      1 /*
      2  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  *
     25  */
     26 
     27 #include "config.h"
     28 #include "ThreadGlobalData.h"
     29 
     30 #include "EventNames.h"
     31 #include "ThreadTimers.h"
     32 #include <wtf/UnusedParam.h>
     33 #include <wtf/WTFThreadData.h>
     34 #include <wtf/text/StringImpl.h>
     35 
     36 #if USE(ICU_UNICODE)
     37 #include "TextCodecICU.h"
     38 #endif
     39 
     40 #if PLATFORM(MAC)
     41 #include "TextCodecMac.h"
     42 #endif
     43 
     44 #if ENABLE(WORKERS)
     45 #include <wtf/Threading.h>
     46 #include <wtf/ThreadSpecific.h>
     47 using namespace WTF;
     48 #endif
     49 
     50 namespace WebCore {
     51 
     52 #if ENABLE(WORKERS)
     53 ThreadSpecific<ThreadGlobalData>* ThreadGlobalData::staticData;
     54 #else
     55 ThreadGlobalData* ThreadGlobalData::staticData;
     56 #endif
     57 
     58 ThreadGlobalData::ThreadGlobalData()
     59     : m_eventNames(new EventNames)
     60     , m_threadTimers(new ThreadTimers)
     61 #ifndef NDEBUG
     62     , m_isMainThread(isMainThread())
     63 #endif
     64 #if USE(ICU_UNICODE)
     65     , m_cachedConverterICU(new ICUConverterWrapper)
     66 #endif
     67 #if PLATFORM(MAC)
     68     , m_cachedConverterTEC(new TECConverterWrapper)
     69 #endif
     70 {
     71     // This constructor will have been called on the main thread before being called on
     72     // any other thread, and is only called once per thread - this makes this a convenient
     73     // point to call methods that internally perform a one-time initialization that is not
     74     // threadsafe.
     75     wtfThreadData();
     76     StringImpl::empty();
     77 }
     78 
     79 ThreadGlobalData::~ThreadGlobalData()
     80 {
     81     destroy();
     82 }
     83 
     84 void ThreadGlobalData::destroy()
     85 {
     86 #if PLATFORM(MAC)
     87     delete m_cachedConverterTEC;
     88     m_cachedConverterTEC = 0;
     89 #endif
     90 
     91 #if USE(ICU_UNICODE)
     92     delete m_cachedConverterICU;
     93     m_cachedConverterICU = 0;
     94 #endif
     95 
     96     delete m_eventNames;
     97     m_eventNames = 0;
     98     delete m_threadTimers;
     99     m_threadTimers = 0;
    100 }
    101 
    102 } // namespace WebCore
    103