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//===-- ThreadSafeValue.h ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_ThreadSafeValue_h_
#define liblldb_ThreadSafeValue_h_
// C Includes
// C++ Includes
#include <mutex>
// Other libraries and framework includes
// Project includes
namespace lldb_private {
template <class T>
class ThreadSafeValue
{
public:
//------------------------------------------------------------------
// Constructors and Destructors
//------------------------------------------------------------------
ThreadSafeValue() : m_value(), m_mutex() {}
ThreadSafeValue(const T &value) : m_value(value), m_mutex() {}
~ThreadSafeValue()
{
}
T
GetValue() const
{
T value;
{
std::lock_guard<std::recursive_mutex> guard(m_mutex);
value = m_value;
}
return value;
}
// Call this if you have already manually locked the mutex using the
// GetMutex() accessor
const T&
GetValueNoLock () const
{
return m_value;
}
void
SetValue(const T &value)
{
std::lock_guard<std::recursive_mutex> guard(m_mutex);
m_value = value;
}
// Call this if you have already manually locked the mutex using the
// GetMutex() accessor
void
SetValueNoLock (const T& value)
{
m_value = value;
}
std::recursive_mutex &
GetMutex()
{
return m_mutex;
}
private:
T m_value;
mutable std::recursive_mutex m_mutex;
//------------------------------------------------------------------
// For ThreadSafeValue only
//------------------------------------------------------------------
DISALLOW_COPY_AND_ASSIGN (ThreadSafeValue);
};
} // namespace lldb_private
#endif // liblldb_ThreadSafeValue_h_
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