Re: Is there a standard template for protecting variables against concurrent access?

On 22 Jan., 12:22, Juha Nieminen <nos...@thanks.invalid> wrote:


Thanks for your reply. Perhaps I didn't made myself clear enough. I
was looking for a template like the following (it uses MS's MFC
classes, so its not platform-independent, but you should get the
idea):

template<class t_Type>
class ProtectedVariable
{
public:
  t_Type& operator= (const t_Type& Other)
  {
    // Lock the mutex first.
    CSingleLock ProtectionMutexLock (&m_ProtectionMutex, TRUE);
    m_Variable = Other;
    return m_Variable;
  }

  t_Type get ()
  {
    // Lock the mutex first.
    CSingleLock ProtectionMutexLock (&m_ProtectionMutex, TRUE);
    return m_Variable;
  }

protected:
  t_Type m_Variable;
  CMutex m_ProtectionMutex;
};

This template can then be used like this:
class SomeClass
{
public:
  ProtectedVariable<double> DoubleVariable;
};

Actually, above class pretty much covers all I want, but
(A) it is not platform-independent and
(B) not part of any standard library.

Thanks,
Stuart