//allow internal access from operators
date_type operator+(const duration_type& dd) const
{
if(dd.is_special())
{
return date_type(date_rep_type(days_) + dd.get_rep());
}
return date_type(date_rep_type(days_) + static_cast<date_int_type>(dd.days()));
}
date_type operator-(const duration_type& dd) const
{
if(dd.is_special())
{
return date_type(date_rep_type(days_) - dd.get_rep());
}
return date_type(date_rep_type(days_) - dd.days());
}
bool frontBlock(T& t, duration_type timeout) const
{
boost::mutex::scoped_lock lock(mutex_);
bool gotValue = false;
if (timeout.count() > 0)
{
if (deque_.empty())
{
available_.wait_for(lock, timeout);
}
if (!deque_.empty())
{
t = deque_.front();
gotValue = true;
}
}
else
{
while (deque_.empty())
{
available_.wait(lock);
}
t = deque_.front();
gotValue = true;
}
return gotValue;
}
OutItrT put(OutItrT next,
std::ios_base& a_ios,
char_type fill_char,
const duration_type& dd) const
{
if (dd.is_special()) {
return do_put_special(next, a_ios, fill_char, dd.get_rep().as_special());
}
typedef std::num_put<CharT, OutItrT> num_put;
if (std::has_facet<num_put>(a_ios.getloc())) {
return std::use_facet<num_put>(a_ios.getloc()).put(next, a_ios, fill_char, dd.get_rep().as_number());
}
else {
num_put* f = new num_put();
std::locale l = std::locale(a_ios.getloc(), f);
a_ios.imbue(l);
return f->put(next, a_ios, fill_char, dd.get_rep().as_number());
}
}
/// Estimate the necessary number of buckets
std::size_t bucket_count(
duration_type measurement_period, duration_type sampling_period) {
if (sampling_period <= duration_type(0)) {
std::ostringstream os;
os << "jb::event_rate_estimate - sampling period ("
<< sampling_period.count() << ") must be a positive number";
throw std::invalid_argument(os.str());
}
if (sampling_period > measurement_period) {
std::ostringstream os;
os << "jb::event_rate_estimate - measurement period ("
<< measurement_period.count() << ") is smaller than sampling period ("
<< sampling_period.count() << ")";
throw std::invalid_argument(os.str());
}
if ((measurement_period % sampling_period).count() != 0) {
std::ostringstream os;
os << "jb::event_rate_estimate - measurement period ("
<< measurement_period.count()
<< ") must be a multiple of the sampling period ("
<< sampling_period.count() << ")";
throw std::invalid_argument(os.str());
}
// ... because measurement_period and sampling_period are positive
// numbers N will be a positive number ...
typedef typename duration_type::rep rep;
typedef typename std::make_unsigned<rep>::type unsigned_rep;
unsigned_rep N = measurement_period / sampling_period;
// ... beware, the type may be larger than what can be stored in
// an std::size_t (weird segmented memory platforms, yuck) ...
if (N >= std::numeric_limits<std::size_t>::max()) {
std::ostringstream os;
os << "jb::event_rate_estimate - measurement period ("
<< measurement_period.count() << ") is too large for sampling period ("
<< sampling_period.count() << ")";
throw std::invalid_argument(os.str());
}
return static_cast<std::size_t>(N);
}
//allow internal access from operators
date_type operator+(const duration_type& dd) const
{
return date_type(date_rep_type(days_) + dd.days());
}
inline
int_type operator+(int i, duration_type<int_type> dt){
return i + dt.get_rep();
}
