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2013-12-21 10:54:17 +01:00
< title > Time< / title >
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< h1 class = "title" > Time< / h1 >
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< tr > < th class = "docinfo-name" > Author:< / th >
< td > Arvid Norberg, < a class = "last reference external" href = "mailto:arvid@rasterbar.com" > arvid@ rasterbar.com< / a > < / td > < / tr >
< tr > < th class = "docinfo-name" > Version:< / th >
< td > 1.0.0< / td > < / tr >
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< li > < a class = "reference internal" href = "#time-duration" id = "id17" > time_duration< / a > < / li >
< li > < a class = "reference internal" href = "#ptime" id = "id18" > ptime< / a > < / li >
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< p > This section contains fundamental time types used internall by
libtorrent and exposed through various places in the API. The two
basic types are < tt class = "docutils literal" > ptime< / tt > and < tt class = "docutils literal" > time_duration< / tt > . The first represents
a point in time and the second the difference between two points
in time.< / p >
< p > The internal representation of these types is implementation defined
and they can only be constructed via one of the construction functions
that take a well defined time unit (seconds, minutes, etc.). They can
only be turned into well defined time units by the accessor functions
(total_microseconds(), etc.).< / p >
< div class = "note" >
< p class = "first admonition-title" > Note< / p >
< p class = "last" > In a future version of libtorrent, these types will be replaced
by the standard timer types from < tt class = "docutils literal" > < span class = "pre" > std::chrono< / span > < / tt > .< / p >
< / div >
< a name = "time_duration" > < / a > < div class = "section" id = "time-duration" >
< h1 > time_duration< / h1 >
< p > Declared in " < a class = "reference external" href = "../include/libtorrent/ptime.hpp" > libtorrent/ptime.hpp< / a > " < / p >
< p > libtorrent < a class = "reference external" href = "reference-Time.html#time_duration" > time_duration< / a > type< / p >
< pre class = "literal-block" >
struct time_duration
{
time_duration& < strong > operator-=< / strong > (time_duration const& c);
time_duration < strong > operator+< / strong > (time_duration const& c);
time_duration& < strong > operator+=< / strong > (time_duration const& c);
time_duration < strong > operator/< / strong > (int rhs) const;
explicit < strong > time_duration< / strong > (boost::int64_t d);
time_duration < strong > operator-< / strong > (time_duration const& c);
time_duration& < strong > operator*=< / strong > (int v);
};
< / pre >
< a name = "ptime" > < / a > < / div >
< div class = "section" id = "ptime" >
< h1 > ptime< / h1 >
< p > Declared in " < a class = "reference external" href = "../include/libtorrent/ptime.hpp" > libtorrent/ptime.hpp< / a > " < / p >
< p > This type represents a point in time.< / p >
< pre class = "literal-block" >
struct ptime
{
ptime& < strong > operator-=< / strong > (time_duration rhs);
ptime& < strong > operator+=< / strong > (time_duration rhs);
};
< / pre >
< a name = "is_negative()" > < / a > < div class = "section" id = "is-negative" >
< h2 > is_negative()< / h2 >
< p > Declared in " < a class = "reference external" href = "../include/libtorrent/ptime.hpp" > libtorrent/ptime.hpp< / a > " < / p >
< pre class = "literal-block" >
inline bool < strong > is_negative< / strong > (time_duration dt);
< / pre >
< a name = "operator+()" > < / a >
< a name = "operator-()" > < / a > < / div >
< div class = "section" id = "operator-operator" >
< h2 > operator+() operator-()< / h2 >
< p > Declared in " < a class = "reference external" href = "../include/libtorrent/ptime.hpp" > libtorrent/ptime.hpp< / a > " < / p >
< pre class = "literal-block" >
inline ptime < strong > operator+< / strong > (time_duration lhs, ptime rhs);
inline ptime < strong > operator+< / strong > (ptime lhs, time_duration rhs);
inline time_duration < strong > operator-< / strong > (ptime lhs, ptime rhs);
inline ptime < strong > operator-< / strong > (ptime lhs, time_duration rhs);
< / pre >
< a name = "time_now()" > < / a > < / div >
< div class = "section" id = "time-now" >
< h2 > time_now()< / h2 >
< p > Declared in " < a class = "reference external" href = "../include/libtorrent/time.hpp" > libtorrent/time.hpp< / a > " < / p >
< pre class = "literal-block" >
ptime const& < strong > time_now< / strong > ();
< / pre >
< p > returns the current time, as represented by < a class = "reference external" href = "reference-Time.html#ptime" > ptime< / a > . The
resolution of this timer is about 100 ms.< / p >
< a name = "time_now_hires()" > < / a > < / div >
< div class = "section" id = "time-now-hires" >
< h2 > time_now_hires()< / h2 >
< p > Declared in " < a class = "reference external" href = "../include/libtorrent/time.hpp" > libtorrent/time.hpp< / a > " < / p >
< pre class = "literal-block" >
ptime < strong > time_now_hires< / strong > ();
< / pre >
< p > returns the current time as represented by < a class = "reference external" href = "reference-Time.html#ptime" > ptime< / a > . This is
more expensive than < a class = "reference external" href = "reference-Time.html#time_now()" > time_now()< / a > , but provides as high resolution
as the operating system can provide.< / p >
< a name = "min_time()" > < / a >
< a name = "max_time()" > < / a > < / div >
< div class = "section" id = "min-time-max-time" >
< h2 > min_time() max_time()< / h2 >
< p > Declared in " < a class = "reference external" href = "../include/libtorrent/time.hpp" > libtorrent/time.hpp< / a > " < / p >
< pre class = "literal-block" >
ptime < strong > max_time< / strong > ();
ptime < strong > min_time< / strong > ();
< / pre >
< p > the earliest and latest possible time points
representable by < a class = "reference external" href = "reference-Time.html#ptime" > ptime< / a > .< / p >
< a name = "microsec()" > < / a >
< a name = "minutes()" > < / a >
< a name = "hours()" > < / a >
< a name = "milliseconds()" > < / a >
< a name = "seconds()" > < / a > < / div >
< div class = "section" id = "microsec-minutes-hours-milliseconds-seconds" >
< h2 > microsec() minutes() hours() milliseconds() seconds()< / h2 >
< p > Declared in " < a class = "reference external" href = "../include/libtorrent/time.hpp" > libtorrent/time.hpp< / a > " < / p >
< pre class = "literal-block" >
time_duration < strong > microsec< / strong > (boost::int64_t s);
time_duration < strong > seconds< / strong > (boost::int64_t s);
time_duration < strong > milliseconds< / strong > (boost::int64_t s);
time_duration < strong > minutes< / strong > (boost::int64_t s);
time_duration < strong > hours< / strong > (boost::int64_t s);
< / pre >
< p > returns a < a class = "reference external" href = "reference-Time.html#time_duration" > time_duration< / a > representing the specified number of seconds, milliseconds
microseconds, minutes and hours.< / p >
< a name = "total_seconds()" > < / a >
< a name = "total_microseconds()" > < / a >
< a name = "total_milliseconds()" > < / a > < / div >
< div class = "section" id = "total-seconds-total-microseconds-total-milliseconds" >
< h2 > total_seconds() total_microseconds() total_milliseconds()< / h2 >
< p > Declared in " < a class = "reference external" href = "../include/libtorrent/time.hpp" > libtorrent/time.hpp< / a > " < / p >
< pre class = "literal-block" >
boost::int64_t < strong > total_seconds< / strong > (time_duration td);
boost::int64_t < strong > total_milliseconds< / strong > (time_duration td);
boost::int64_t < strong > total_microseconds< / strong > (time_duration td);
< / pre >
< p > returns the number of seconds, milliseconds and microseconds
a < a class = "reference external" href = "reference-Time.html#time_duration" > time_duration< / a > represents.< / p >
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