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/*
* 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 "third_party/blink/renderer/platform/wtf/wtf.h"
#include "build/build_config.h"
#include "third_party/blink/renderer/platform/wtf/allocator/partitions.h"
#include "third_party/blink/renderer/platform/wtf/date_math.h"
#include "third_party/blink/renderer/platform/wtf/dtoa.h"
#include "third_party/blink/renderer/platform/wtf/functional.h"
#include "third_party/blink/renderer/platform/wtf/stack_util.h"
#include "third_party/blink/renderer/platform/wtf/text/atomic_string.h"
#include "third_party/blink/renderer/platform/wtf/text/copy_lchars_from_uchar_source.h"
#include "third_party/blink/renderer/platform/wtf/text/string_statics.h"
#include "third_party/blink/renderer/platform/wtf/thread_specific.h"
#include "third_party/blink/renderer/platform/wtf/threading.h"
namespace WTF {
namespace {
bool g_initialized = false;
#if defined(COMPONENT_BUILD) && BUILDFLAG(IS_WIN)
constinit thread_local bool g_is_main_thread = false;
#endif
} // namespace
base::PlatformThreadId g_main_thread_identifier;
#if BUILDFLAG(IS_ANDROID)
// On Android going through libc (gettid) is faster than runtime-lib emulation.
bool IsMainThread() {
return CurrentThread() == g_main_thread_identifier;
}
#elif defined(COMPONENT_BUILD) && BUILDFLAG(IS_WIN)
bool IsMainThread() {
return g_is_main_thread;
}
#else
constinit thread_local bool g_is_main_thread = false;
#endif
void Initialize() {
// WTF, and Blink in general, cannot handle being re-initialized.
// Make that explicit here.
CHECK(!g_initialized);
g_initialized = true;
#if !BUILDFLAG(IS_ANDROID)
g_is_main_thread = true;
#endif
g_main_thread_identifier = CurrentThread();
Threading::Initialize();
internal::InitializeDoubleConverter();
internal::InitializeMainThreadStackEstimate();
AtomicString::Init();
StringStatics::Init();
}
} // namespace WTF
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