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ClearScript/ClearScriptV8/Mutex.cpp at master · ClearFoundry/ClearScript · GitHub
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//
Copyright (c) Microsoft Corporation. All rights reserved.
//
Licensed under the MIT license.
#
include
"
ClearScriptV8Native.h
"
//
-----------------------------------------------------------------------------
//
SimpleMutex implementation
//
-----------------------------------------------------------------------------
SimpleMutex::SimpleMutex
():
m_pImpl(
new
Impl)
{
}
//
-----------------------------------------------------------------------------
void
SimpleMutex::Lock
()
{
m_pImpl->
lock
();
}
//
-----------------------------------------------------------------------------
bool
SimpleMutex::TryLock
()
{
return
m_pImpl->
try_lock
();
}
//
-----------------------------------------------------------------------------
void
SimpleMutex::Unlock
()
{
m_pImpl->
unlock
();
}
//
-----------------------------------------------------------------------------
SimpleMutex::~SimpleMutex
()
{
delete
m_pImpl;
}
//
-----------------------------------------------------------------------------
//
RecursiveMutex implementation
//
-----------------------------------------------------------------------------
RecursiveMutex::RecursiveMutex
():
m_pImpl(
new
Impl)
{
}
//
-----------------------------------------------------------------------------
void
RecursiveMutex::Lock
()
{
m_pImpl->
lock
();
}
//
-----------------------------------------------------------------------------
bool
RecursiveMutex::TryLock
()
{
return
m_pImpl->
try_lock
();
}
//
-----------------------------------------------------------------------------
void
RecursiveMutex::Unlock
()
{
m_pImpl->
unlock
();
}
//
-----------------------------------------------------------------------------
RecursiveMutex::~RecursiveMutex
()
{
delete
m_pImpl;
}
//
-----------------------------------------------------------------------------
//
OnceFlag::Impl
//
-----------------------------------------------------------------------------
class
OnceFlag
::Impl
final
{
PROHIBIT_COPY
(Impl)
public:
Impl
():
m_Called
(
false
)
{
}
void
CallOnce
(
const
std::function<
void
()>& func)
{
if
(!m_Called)
{
BEGIN_MUTEX_SCOPE
(m_Mutex)
if
(!m_Called)
{
func
();
m_Called =
true
;
}
END_MUTEX_SCOPE
}
}
private:
std::atomic<
bool
> m_Called;
SimpleMutex m_Mutex;
};
//
-----------------------------------------------------------------------------
//
OnceFlag implementation
//
-----------------------------------------------------------------------------
OnceFlag::OnceFlag
():
m_pImpl(
new
Impl)
{
}
//
-----------------------------------------------------------------------------
void
OnceFlag::CallOnce
(
const
std::function<
void
()>& func)
{
m_pImpl->
CallOnce
(func);
}
//
-----------------------------------------------------------------------------
OnceFlag::~OnceFlag
()
{
delete
m_pImpl;
}
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