high_resolution_timer::high_resolution_timer(io_service& io_service,
const time_type& expiry_time)
: m_expiration_time(time_type())
, m_io_service(io_service)
, m_expired(true)
{
expires_at(expiry_time);
}
// Set the expiry time for the timer relative to now.
std::size_t expires_after(implementation_type& impl,
const duration_type& expiry_time, asio::error_code& ec)
{
return expires_at(impl,
Time_Traits::add(Time_Traits::now(), expiry_time), ec);
}
/**
* @return A relative time value representing the stream buffer's expiry time.
*/
duration_type expires_from_now() const
{
return traits_helper::subtract(expires_at(), traits_helper::now());
}
// Set the expiry time for the timer relative to now.
std::size_t expires_from_now(implementation_type& impl,
const duration_type& expiry_time, pdalboost::system::error_code& ec)
{
return expires_at(impl,
Time_Traits::add(Time_Traits::now(), expiry_time), ec);
}
// Get the expiry time for the timer relative to now.
duration_type expires_from_now(const implementation_type& impl) const
{
return Time_Traits::subtract(expires_at(impl), Time_Traits::now());
}
std::size_t high_resolution_timer::expires_at(const high_resolution_timer::time_type& expiry_time)
{
boost::system::error_code ec;
return expires_at(expiry_time, ec);
}
/**
* @return A relative time value representing the stream buffer's expiry time.
*/
duration_type expires_from_now() const
{
return TimeTraits::subtract(expires_at(), TimeTraits::now());
}
std::size_t timer::expires_at( const time_type & expiry_time, boost::system::error_code & ec )
{
ec = boost::system::error_code();
return expires_at( expiry_time );
}
