BEGIN_NCBI_SCOPE
/////////////////////////////////////////////////////////////////////////////
impl::CDBExceptionStorage& GetCTLExceptionStorage(void)
{
static CStaticTls<impl::CDBExceptionStorage> instance;
impl::CDBExceptionStorage* result = instance.GetValue();
if (!result) {
auto_ptr<impl::CDBExceptionStorage> tmp_value(new impl::CDBExceptionStorage);
instance.SetValue(tmp_value.get(), s_DelExceptionStorage);
result = tmp_value.release();
}
return *result;
}
//-------------------------------------------------------------------------
//! @brief This is the callback function which is passed to the Signal in
//! the model's constructor.
//!
//! Here the value is retrieved and appended to the list. If the list is too
//! large, the oldest value is removed. The Validity is updated, and the
//! Signal is emitted, telling others that the values have been updated.
//!
//! @todo Make the 'average value' calculation more efficient.
//-------------------------------------------------------------------------
void ValueList::update()
{
variant tmp_value( retrieve_value__() );
// Make tmp_average the same 'type' as tmp_value and set it to '0'.
variant tmp_average = tmp_value;
tmp_average.zero();
if( max_value__.isEmpty() )
{
max_value__ = tmp_value;
max_value__.zero();
}
values__.push_back( tmp_value );
if( values__.size() > list_size__ )
values__.pop_front();
std::for_each( values__.begin()
, values__.end()
, [&]( variant const& _var )
{
tmp_average = tmp_average + _var;
} );
average_value__ = tmp_average / values__.size();
if( tmp_value > max_value__ )
{
max_value__ = tmp_value;
max_value_position__ = 0;
}
else
++max_value_position__;
if( max_value_position__ >= list_size__ )
findMaxValue();
validity__ = Validity::ENABLED;
signal__->emit();
}
