static time_type create_time(TZ_FOR_CREATE tz) {
timeval tv;
gettimeofday(&tv, 0); //gettimeofday does not support TZ adjust on Linux.
std::time_t t = tv.tv_sec;
boost::uint32_t fs = tv.tv_usec;
std::tm curr, *curr_ptr = 0;
if (tz == LOCAL) {
curr_ptr = c_time::localtime(&t, &curr);
} else {
curr_ptr = c_time::gmtime(&t, &curr);
}
date_type d(curr_ptr->tm_year + 1900,
curr_ptr->tm_mon + 1,
curr_ptr->tm_mday);
//The following line will adjusts the fractional second tick in terms
//of the current time system. For example, if the time system
//doesn't support fractional seconds then res_adjust returns 0
//and all the fractional seconds return 0.
int adjust = resolution_traits_type::res_adjust()/1000000;
time_duration_type td(curr_ptr->tm_hour,
curr_ptr->tm_min,
curr_ptr->tm_sec,
fs*adjust);
return time_type(d,td);
}
high_resolution_timer::high_resolution_timer(io_service& io_service,
const duration_type& expiry_time)
: m_expiration_time(time_type())
, m_io_service(io_service)
, m_expired(true)
{
expires_from_now(expiry_time);
}
static time_type create_time(::std::tm* current)
{
date_type d(static_cast<unsigned short>(current->tm_year + 1900),
static_cast<unsigned short>(current->tm_mon + 1),
static_cast<unsigned short>(current->tm_mday));
time_duration_type td(current->tm_hour,
current->tm_min,
current->tm_sec);
return time_type(d,td);
}
static time_type local_time(shared_ptr<time_zone_type> tz_ptr) {
typedef typename time_type::utc_time_type utc_time_type;
typedef second_clock<utc_time_type> second_clock;
// we'll need to know the utc_offset this machine has
// in order to get a utc_time_type set to utc
utc_time_type utc_time = second_clock::universal_time();
time_duration_type utc_offset = second_clock::local_time() - utc_time;
// use micro clock to get a local time with sub seconds
// and adjust it to get a true utc time reading with sub seconds
utc_time = microsec_clock<utc_time_type>::local_time() - utc_offset;
return time_type(utc_time, tz_ptr);
}
static time_type create_time(time_converter converter)
{
#ifdef BOOST_HAS_GETTIMEOFDAY
timeval tv;
gettimeofday(&tv, 0); //gettimeofday does not support TZ adjust on Linux.
std::time_t t = tv.tv_sec;
boost::uint32_t sub_sec = tv.tv_usec;
#elif defined(BOOST_HAS_FTIME)
boost::winapi::FILETIME_ ft;
boost::winapi::GetSystemTimeAsFileTime(&ft);
#if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3205))
// Some runtime library implementations expect local times as the norm for ctime functions.
{
boost::winapi::FILETIME_ local_ft;
boost::winapi::FileTimeToLocalFileTime(&ft, &local_ft);
ft = local_ft;
}
#endif
boost::uint64_t micros = file_time_to_microseconds(ft); // it will not wrap, since ft is the current time
// and cannot be before 1970-Jan-01
std::time_t t = static_cast<std::time_t>(micros / 1000000UL); // seconds since epoch
// microseconds -- static casts suppress warnings
boost::uint32_t sub_sec = static_cast<boost::uint32_t>(micros % 1000000UL);
#else
#error Internal Boost.DateTime error: BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK is defined, however neither gettimeofday nor FILETIME support is detected.
#endif
std::tm curr;
std::tm* curr_ptr = converter(&t, &curr);
date_type d(static_cast< typename date_type::year_type::value_type >(curr_ptr->tm_year + 1900),
static_cast< typename date_type::month_type::value_type >(curr_ptr->tm_mon + 1),
static_cast< typename date_type::day_type::value_type >(curr_ptr->tm_mday));
//The following line will adjust the fractional second tick in terms
//of the current time system. For example, if the time system
//doesn't support fractional seconds then res_adjust returns 0
//and all the fractional seconds return 0.
int adjust = static_cast< int >(resolution_traits_type::res_adjust() / 1000000);
time_duration_type td(static_cast< typename time_duration_type::hour_type >(curr_ptr->tm_hour),
static_cast< typename time_duration_type::min_type >(curr_ptr->tm_min),
static_cast< typename time_duration_type::sec_type >(curr_ptr->tm_sec),
sub_sec * adjust);
return time_type(d,td);
}
inline
time_type
parse_iso_time(const std::string& s, char sep)
{
typedef typename time_type::time_duration_type time_duration;
typedef typename time_type::date_type date_type;
//split date/time on a unique delimiter char such as ' ' or 'T'
std::string date_string, tod_string;
split(s, sep, date_string, tod_string);
//call parse_date with first string
date_type d = parse_undelimited_date<date_type>(date_string);
//call parse_time_duration with remaining string
time_duration td = parse_undelimited_time_duration<time_duration>(tod_string);
//construct a time
return time_type(d, td);
}
static time_type create_time(FILETIME& ft, TZ_FOR_CREATE tz) {
// offset is difference (in 100-nanoseconds) from
// 1970-Jan-01 to 1601-Jan-01
boost::uint64_t c1 = 27111902;
boost::uint64_t c2 = 3577643008UL; // 'UL' removes compiler warnings
const boost::uint64_t OFFSET = (c1 << 32) + c2;
boost::uint64_t filetime = ft.dwHighDateTime;
filetime = filetime << 32;
filetime += ft.dwLowDateTime;
filetime -= OFFSET;
// filetime now holds 100-nanoseconds since 1970-Jan-01
// microseconds -- static casts supress warnings
boost::uint32_t sub_sec = static_cast<boost::uint32_t>((filetime % 10000000) / 10);
std::time_t t = static_cast<time_t>(filetime / 10000000); // seconds since epoch
std::tm curr, *curr_ptr = 0;
if (tz == LOCAL) {
curr_ptr = c_time::localtime(&t, &curr);
}
else {
curr_ptr = c_time::gmtime(&t, &curr);
}
date_type d(curr_ptr->tm_year + 1900,
curr_ptr->tm_mon + 1,
curr_ptr->tm_mday);
//The following line will adjusts the fractional second tick in terms
//of the current time system. For example, if the time system
//doesn't support fractional seconds then res_adjust returns 0
//and all the fractional seconds return 0.
int adjust = static_cast<int>(resolution_traits_type::res_adjust()/1000000);
time_duration_type td(curr_ptr->tm_hour,
curr_ptr->tm_min,
curr_ptr->tm_sec,
sub_sec * adjust);
//st.wMilliseconds * adjust);
return time_type(d,td);
}
static time_type create_time(timeval* tv) {
time_t t = tv->tv_sec;
boost::uint32_t fs = tv->tv_usec;
::std::time(&t);
tm* curr = localtime(&t);
date_type d(curr->tm_year + 1900,
curr->tm_mon + 1,
curr->tm_mday);
//The following line will adjusts the fractional second tick in terms
//of the current time system. For example, if the time system
//doesn't support fractional seconds then res_adjust returns 0
//and all the fractional seconds return 0.
int adjust = resolution_traits_type::res_adjust()/1000000;
time_duration_type td(curr->tm_hour,
curr->tm_min,
curr->tm_sec,
fs*adjust);
return time_type(d,td);
}
static time_type create_time(time_converter converter)
{
#ifdef BOOST_HAS_GETTIMEOFDAY
timeval tv;
gettimeofday(&tv, 0); //gettimeofday does not support TZ adjust on Linux.
std::time_t t = tv.tv_sec;
pdalboost::uint32_t sub_sec = tv.tv_usec;
#elif defined(BOOST_HAS_FTIME)
winapi::file_time ft;
winapi::get_system_time_as_file_time(ft);
uint64_t micros = winapi::file_time_to_microseconds(ft); // it will not wrap, since ft is the current time
// and cannot be before 1970-Jan-01
std::time_t t = static_cast<std::time_t>(micros / 1000000UL); // seconds since epoch
// microseconds -- static casts suppress warnings
pdalboost::uint32_t sub_sec = static_cast<pdalboost::uint32_t>(micros % 1000000UL);
#else
#error Internal Boost.DateTime error: BOOST_DATE_TIME_HAS_HIGH_PRECISION_CLOCK is defined, however neither gettimeofday nor FILETIME support is detected.
#endif
std::tm curr;
std::tm* curr_ptr = converter(&t, &curr);
date_type d(static_cast< typename date_type::year_type::value_type >(curr_ptr->tm_year + 1900),
static_cast< typename date_type::month_type::value_type >(curr_ptr->tm_mon + 1),
static_cast< typename date_type::day_type::value_type >(curr_ptr->tm_mday));
//The following line will adjust the fractional second tick in terms
//of the current time system. For example, if the time system
//doesn't support fractional seconds then res_adjust returns 0
//and all the fractional seconds return 0.
int adjust = static_cast< int >(resolution_traits_type::res_adjust() / 1000000);
time_duration_type td(static_cast< typename time_duration_type::hour_type >(curr_ptr->tm_hour),
static_cast< typename time_duration_type::min_type >(curr_ptr->tm_min),
static_cast< typename time_duration_type::sec_type >(curr_ptr->tm_sec),
sub_sec * adjust);
return time_type(d,td);
}
inline
time_type time_from_ftime(const FILETIME& ft){
typedef typename time_type::date_type date_type;
typedef typename time_type::date_duration_type date_duration_type;
typedef typename time_type::time_duration_type time_duration_type;
/* OFFSET is difference between 1970-Jan-01 & 1601-Jan-01
* in 100-nanosecond intervals */
uint64_t c1 = 27111902UL;
uint64_t c2 = 3577643008UL; // issues warning without 'UL'
const uint64_t OFFSET = (c1 << 32) + c2;
const long sec_pr_day = 86400; // seconds per day
uint64_t filetime = ft.dwHighDateTime;
filetime <<= 32;
filetime += ft.dwLowDateTime;
filetime -= OFFSET; // filetime is now 100-nanos since 1970-Jan-01
uint64_t sec = filetime / 10000000;
#if defined(BOOST_DATE_TIME_POSIX_TIME_STD_CONFIG)
uint64_t sub_sec = (filetime % 10000000) * 100; // nanoseconds
#else
uint64_t sub_sec = (filetime % 10000000) / 10; // truncate to microseconds
#endif
// split sec into usable chunks: days, hours, minutes, & seconds
long _d = sec / sec_pr_day;
long tmp = sec % sec_pr_day;
long _h = tmp / 3600; // sec_pr_hour
tmp %= 3600;
long _m = tmp / 60; // sec_pr_min
tmp %= 60;
long _s = tmp; // seconds
date_duration_type dd(_d);
date_type d = date_type(1970, Jan, 01) + dd;
return time_type(d, time_duration_type(_h, _m, _s, sub_sec));
}
//! Convert a utc time to local time
static time_type utc_to_local(const time_type& t)
{
date_type time_t_start_day(1970,1,1);
time_type time_t_start_time(time_t_start_day,time_duration_type(0,0,0));
if (t < time_t_start_time) {
throw std::out_of_range("Cannot convert dates prior to Jan 1, 1970");
}
date_duration_type dd = t.date() - time_t_start_day;
time_duration_type td = t.time_of_day();
std::time_t t2 = dd.days()*86400 + td.hours()*3600 + td.minutes()*60 + td.seconds();
std::tm tms, *tms_ptr;
tms_ptr = c_time::localtime(&t2, &tms);
//tms_ptr = std::localtime(&t2);
date_type d(static_cast<unsigned short>(tms_ptr->tm_year + 1900),
static_cast<unsigned short>(tms_ptr->tm_mon + 1),
static_cast<unsigned short>(tms_ptr->tm_mday));
time_duration_type td2(tms_ptr->tm_hour,
tms_ptr->tm_min,
tms_ptr->tm_sec,
t.time_of_day().fractional_seconds());
return time_type(d,td2);
}
static time_type create_time(FILETIME& ft) {
// offset is difference (in 100-nanoseconds) from
// 1970-Jan-01 to 1601-Jan-01
boost::uint64_t c1 = 27111902;
boost::uint64_t c2 = 3577643008UL; // 'UL' removes compiler warnings
const boost::uint64_t OFFSET = (c1 << 32) + c2;
boost::uint64_t filetime = ft.dwHighDateTime;
filetime = filetime << 32;
filetime += ft.dwLowDateTime;
filetime -= OFFSET;
// filetime now holds 100-nanoseconds since 1970-Jan-01
boost::uint32_t sub_sec = (filetime % 10000000) / 10; // microseconds
time_t t;
::std::time(&t);
tm* curr = localtime(&t);
date_type d(curr->tm_year + 1900,
curr->tm_mon + 1,
curr->tm_mday);
//The following line will adjusts the fractional second tick in terms
//of the current time system. For example, if the time system
//doesn't support fractional seconds then res_adjust returns 0
//and all the fractional seconds return 0.
int adjust = resolution_traits_type::res_adjust()/1000000;
time_duration_type td(curr->tm_hour,
curr->tm_min,
curr->tm_sec,
sub_sec * adjust);
//st.wMilliseconds * adjust);
return time_type(d,td);
}
static time_type local_time(boost::shared_ptr<time_zone_type> tz_ptr)
{
typedef typename time_type::utc_time_type utc_time_type;
utc_time_type utc_time = second_clock<utc_time_type>::universal_time();
return time_type(utc_time, tz_ptr);
}
high_resolution_timer::high_resolution_timer(io_service& io_service)
: m_expiration_time(time_type())
, m_io_service(io_service)
, m_expired(true)
{
}
/**
* @return An absolute time value representing the stream buffer's expiry
* time.
*/
time_type expires_at() const
{
return timer_service_
? timer_service_->expires_at(timer_implementation_)
: time_type();
}
timer::time_type timer::expires_at() const
{
return time_type();
}