/// Query the current value of the accumulator.
///
/// \note This function is fully synchronous.
double query_sync()
{
HPX_ASSERT(this->get_id());
return query_async().get();
}
/// Query the current value of the accumulator.
///
/// \note This function is fully synchronous.
static boost::uint64_t query_sync(hpx::naming::id_type const& gid)
{
// The following get yields control while the action is executed.
return query_async(gid).get();
}
/// Query the current value of the accumulator.
///
/// \note This function is fully synchronous.
argument_type query_sync()
{
HPX_ASSERT(this->get_id());
return query_async().get();
}