261 lines
8.2 KiB
Plaintext
261 lines
8.2 KiB
Plaintext
|
// (C) Copyright Howard Hinnant
|
||
|
|
// (C) Copyright 2011 Vicente J. Botet Escriba
|
||
|
|
// Copyright (c) Microsoft Corporation 2014
|
||
|
|
// Use, modification and distribution are subject to the Boost Software License,
|
||
|
|
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
|
||
|
|
// http://www.boost.org/LICENSE_1_0.txt).
|
||
|
|
//
|
||
|
|
|
||
|
|
#ifndef BOOST_CHRONO_IO_TIME_POINT_UNITS_HPP
|
||
|
|
#define BOOST_CHRONO_IO_TIME_POINT_UNITS_HPP
|
||
|
|
|
||
|
|
#include <boost/chrono/config.hpp>
|
||
|
|
#include <boost/chrono/process_cpu_clocks.hpp>
|
||
|
|
#include <boost/chrono/system_clocks.hpp>
|
||
|
|
#include <boost/chrono/thread_clock.hpp>
|
||
|
|
#include <boost/chrono/io/ios_base_state.hpp>
|
||
|
|
#include <string>
|
||
|
|
#include <iostream>
|
||
|
|
#include <ios>
|
||
|
|
#include <locale>
|
||
|
|
#include <algorithm>
|
||
|
|
|
||
|
|
namespace boost
|
||
|
|
{
|
||
|
|
namespace chrono
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* customization point to the epoch associated to the clock @c Clock
|
||
|
|
* The default calls @c f.do_get_epoch(Clock()). The user can overload this function.
|
||
|
|
* @return the string epoch associated to the @c Clock
|
||
|
|
*/
|
||
|
|
template <typename CharT, typename Clock, typename TPUFacet>
|
||
|
|
std::basic_string<CharT> get_epoch_custom(Clock, TPUFacet& f)
|
||
|
|
{
|
||
|
|
return f.do_get_epoch(Clock());
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @c time_point_units facet gives useful information about the time_point pattern,
|
||
|
|
* the text associated to a time_point's epoch,
|
||
|
|
*/
|
||
|
|
template <typename CharT=char>
|
||
|
|
class time_point_units: public std::locale::facet
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
/**
|
||
|
|
* Type of character the facet is instantiated on.
|
||
|
|
*/
|
||
|
|
typedef CharT char_type;
|
||
|
|
/**
|
||
|
|
* Type of character string used by member functions.
|
||
|
|
*/
|
||
|
|
typedef std::basic_string<char_type> string_type;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Unique identifier for this type of facet.
|
||
|
|
*/
|
||
|
|
static std::locale::id id;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Construct a @c time_point_units facet.
|
||
|
|
* @param refs
|
||
|
|
* @Effects Construct a @c time_point_units facet.
|
||
|
|
* If the @c refs argument is @c 0 then destruction of the object is
|
||
|
|
* delegated to the @c locale, or locales, containing it. This allows
|
||
|
|
* the user to ignore lifetime management issues. On the other had,
|
||
|
|
* if @c refs is @c 1 then the object must be explicitly deleted;
|
||
|
|
* the @c locale will not do so. In this case, the object can be
|
||
|
|
* maintained across the lifetime of multiple locales.
|
||
|
|
*/
|
||
|
|
explicit time_point_units(size_t refs = 0) :
|
||
|
|
std::locale::facet(refs)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @return the pattern to be used by default.
|
||
|
|
*/
|
||
|
|
virtual string_type get_pattern() const =0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @return the epoch associated to the clock @c Clock calling @c do_get_epoch(Clock())
|
||
|
|
*/
|
||
|
|
template <typename Clock>
|
||
|
|
string_type get_epoch() const
|
||
|
|
{
|
||
|
|
return get_epoch_custom<CharT>(Clock(), *this);
|
||
|
|
}
|
||
|
|
|
||
|
|
protected:
|
||
|
|
/**
|
||
|
|
* Destroy the facet.
|
||
|
|
*/
|
||
|
|
virtual ~time_point_units() {}
|
||
|
|
|
||
|
|
public:
|
||
|
|
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
* @param c a dummy instance of @c system_clock.
|
||
|
|
* @return The epoch string associated to the @c system_clock.
|
||
|
|
*/
|
||
|
|
virtual string_type do_get_epoch(system_clock) const=0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
* @param c a dummy instance of @c steady_clock.
|
||
|
|
* @return The epoch string associated to the @c steady_clock.
|
||
|
|
*/
|
||
|
|
virtual string_type do_get_epoch(steady_clock) const=0;
|
||
|
|
|
||
|
|
#if defined(BOOST_CHRONO_HAS_PROCESS_CLOCKS)
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
* @param c a dummy instance of @c process_real_cpu_clock.
|
||
|
|
* @return The epoch string associated to the @c process_real_cpu_clock.
|
||
|
|
*/
|
||
|
|
virtual string_type do_get_epoch(process_real_cpu_clock) const=0;
|
||
|
|
#if ! BOOST_OS_WINDOWS || BOOST_PLAT_WINDOWS_DESKTOP
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
* @param c a dummy instance of @c process_user_cpu_clock.
|
||
|
|
* @return The epoch string associated to the @c process_user_cpu_clock.
|
||
|
|
*/
|
||
|
|
virtual string_type do_get_epoch(process_user_cpu_clock) const=0;
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
* @param c a dummy instance of @c process_system_cpu_clock.
|
||
|
|
* @return The epoch string associated to the @c process_system_cpu_clock.
|
||
|
|
*/
|
||
|
|
virtual string_type do_get_epoch(process_system_cpu_clock) const=0;
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
* @param c a dummy instance of @c process_cpu_clock.
|
||
|
|
* @return The epoch string associated to the @c process_cpu_clock.
|
||
|
|
*/
|
||
|
|
virtual string_type do_get_epoch(process_cpu_clock) const=0;
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
#if defined(BOOST_CHRONO_HAS_THREAD_CLOCK)
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
* @param c a dummy instance of @c thread_clock.
|
||
|
|
* @return The epoch string associated to the @c thread_clock.
|
||
|
|
*/
|
||
|
|
virtual string_type do_get_epoch(thread_clock) const=0;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename CharT>
|
||
|
|
std::locale::id time_point_units<CharT>::id;
|
||
|
|
|
||
|
|
|
||
|
|
// This class is used to define the strings for the default English
|
||
|
|
template <typename CharT=char>
|
||
|
|
class time_point_units_default: public time_point_units<CharT>
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
/**
|
||
|
|
* Type of character the facet is instantiated on.
|
||
|
|
*/
|
||
|
|
typedef CharT char_type;
|
||
|
|
/**
|
||
|
|
* Type of character string returned by member functions.
|
||
|
|
*/
|
||
|
|
typedef std::basic_string<char_type> string_type;
|
||
|
|
|
||
|
|
explicit time_point_units_default(size_t refs = 0) :
|
||
|
|
time_point_units<CharT> (refs)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
~time_point_units_default() {}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @return the default pattern "%d%e".
|
||
|
|
*/
|
||
|
|
string_type get_pattern() const
|
||
|
|
{
|
||
|
|
static const CharT t[] =
|
||
|
|
{ '%', 'd', '%', 'e' };
|
||
|
|
static const string_type pattern(t, t + sizeof (t) / sizeof (t[0]));
|
||
|
|
|
||
|
|
return pattern;
|
||
|
|
}
|
||
|
|
|
||
|
|
//protected:
|
||
|
|
/**
|
||
|
|
* @param c a dummy instance of @c system_clock.
|
||
|
|
* @return The epoch string returned by @c clock_string<system_clock,CharT>::since().
|
||
|
|
*/
|
||
|
|
string_type do_get_epoch(system_clock ) const
|
||
|
|
{
|
||
|
|
return clock_string<system_clock,CharT>::since();
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @param c a dummy instance of @c steady_clock.
|
||
|
|
* @return The epoch string returned by @c clock_string<steady_clock,CharT>::since().
|
||
|
|
*/
|
||
|
|
string_type do_get_epoch(steady_clock ) const
|
||
|
|
{
|
||
|
|
return clock_string<steady_clock,CharT>::since();
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined(BOOST_CHRONO_HAS_PROCESS_CLOCKS)
|
||
|
|
/**
|
||
|
|
* @param c a dummy instance of @c process_real_cpu_clock.
|
||
|
|
* @return The epoch string returned by @c clock_string<process_real_cpu_clock,CharT>::since().
|
||
|
|
*/
|
||
|
|
string_type do_get_epoch(process_real_cpu_clock ) const
|
||
|
|
{
|
||
|
|
return clock_string<process_real_cpu_clock,CharT>::since();
|
||
|
|
}
|
||
|
|
#if ! BOOST_OS_WINDOWS || BOOST_PLAT_WINDOWS_DESKTOP
|
||
|
|
/**
|
||
|
|
* @param c a dummy instance of @c process_user_cpu_clock.
|
||
|
|
* @return The epoch string returned by @c clock_string<process_user_cpu_clock,CharT>::since().
|
||
|
|
*/
|
||
|
|
string_type do_get_epoch(process_user_cpu_clock ) const
|
||
|
|
{
|
||
|
|
return clock_string<process_user_cpu_clock,CharT>::since();
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @param c a dummy instance of @c process_system_cpu_clock.
|
||
|
|
* @return The epoch string returned by @c clock_string<process_system_cpu_clock,CharT>::since().
|
||
|
|
*/
|
||
|
|
string_type do_get_epoch(process_system_cpu_clock ) const
|
||
|
|
{
|
||
|
|
return clock_string<process_system_cpu_clock,CharT>::since();
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @param c a dummy instance of @c process_cpu_clock.
|
||
|
|
* @return The epoch string returned by @c clock_string<process_cpu_clock,CharT>::since().
|
||
|
|
*/
|
||
|
|
string_type do_get_epoch(process_cpu_clock ) const
|
||
|
|
{
|
||
|
|
return clock_string<process_cpu_clock,CharT>::since();
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
#if defined(BOOST_CHRONO_HAS_THREAD_CLOCK)
|
||
|
|
/**
|
||
|
|
* @param c a dummy instance of @c thread_clock.
|
||
|
|
* @return The epoch string returned by @c clock_string<thread_clock,CharT>::since().
|
||
|
|
*/
|
||
|
|
string_type do_get_epoch(thread_clock ) const
|
||
|
|
{
|
||
|
|
return clock_string<thread_clock,CharT>::since();
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
} // chrono
|
||
|
|
|
||
|
|
} // boost
|
||
|
|
|
||
|
|
#endif // header
|