1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/*
* Copyright (C) 2008, 2014 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 "ThreadGlobalData.h"
#include "CachedResourceRequestInitiators.h"
#include "EventNames.h"
#include "QualifiedNameCache.h"
#include "TextCodecICU.h"
#include "ThreadTimers.h"
#include <wtf/MainThread.h>
#include <wtf/ThreadSpecific.h>
#include <wtf/Threading.h>
#include <wtf/text/StringImpl.h>
#if PLATFORM(MAC)
#include "TextCodecMac.h"
#endif
namespace WebCore {
ThreadGlobalData::ThreadGlobalData()
: m_cachedResourceRequestInitiators(std::make_unique<CachedResourceRequestInitiators>())
, m_eventNames(EventNames::create())
, m_threadTimers(std::make_unique<ThreadTimers>())
, m_qualifiedNameCache(std::make_unique<QualifiedNameCache>())
#ifndef NDEBUG
, m_isMainThread(isMainThread())
#endif
, m_cachedConverterICU(std::make_unique<ICUConverterWrapper>())
#if PLATFORM(MAC)
, m_cachedConverterTEC(std::make_unique<TECConverterWrapper>())
#endif
{
// This constructor will have been called on the main thread before being called on
// any other thread, and is only called once per thread - this makes this a convenient
// point to call methods that internally perform a one-time initialization that is not
// threadsafe.
Thread::current();
}
ThreadGlobalData::~ThreadGlobalData()
{
}
void ThreadGlobalData::destroy()
{
#if PLATFORM(MAC)
m_cachedConverterTEC = nullptr;
#endif
m_cachedConverterICU = nullptr;
m_eventNames = nullptr;
m_threadTimers = nullptr;
m_qualifiedNameCache = nullptr;
}
#if USE(WEB_THREAD)
static ThreadSpecific<RefPtr<ThreadGlobalData>>* staticData { nullptr };
static ThreadGlobalData* sharedMainThreadStaticData { nullptr };
void ThreadGlobalData::setWebCoreThreadData()
{
ASSERT(isWebThread());
ASSERT(&threadGlobalData() != sharedMainThreadStaticData);
// Set WebThread's ThreadGlobalData object to be the same as the main UI thread.
**staticData = adoptRef(sharedMainThreadStaticData);
ASSERT(&threadGlobalData() == sharedMainThreadStaticData);
}
ThreadGlobalData& threadGlobalData()
{
if (UNLIKELY(!staticData)) {
staticData = new ThreadSpecific<RefPtr<ThreadGlobalData>>;
auto& result = **staticData;
ASSERT(!result);
result = adoptRef(new ThreadGlobalData);
// WebThread and main UI thread need to share the same object. Save it in a static
// here, the WebThread will pick it up in setWebCoreThreadData().
if (pthread_main_np()) {
sharedMainThreadStaticData = result.get();
result->ref();
}
return *result;
}
auto& result = **staticData;
if (!result)
result = adoptRef(new ThreadGlobalData);
return *result;
}
#else
static ThreadSpecific<ThreadGlobalData>* staticData { nullptr };
ThreadGlobalData& threadGlobalData()
{
if (UNLIKELY(!staticData))
staticData = new ThreadSpecific<ThreadGlobalData>;
return **staticData;
}
#endif
} // namespace WebCore
|
