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/*
* Copyright 2018 Google, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Gabe Black
*/
#ifndef __SYSTEMC_EXT_CORE_SC_TIME_HH__
#define __SYSTEMC_EXT_CORE_SC_TIME_HH__
#include <stdint.h>
#include <iostream>
#include "../dt/int/sc_nbdefs.hh"
namespace sc_core
{
enum sc_time_unit {
SC_FS = 0,
SC_PS,
SC_NS,
SC_US,
SC_MS,
SC_SEC
};
class sc_time
{
public:
sc_time();
sc_time(double, sc_time_unit);
sc_time(const sc_time &);
// Deprecated
sc_time(double, bool);
sc_time(sc_dt::uint64, bool);
sc_time &operator = (const sc_time &);
sc_dt::uint64 value() const;
double to_double() const;
double to_seconds() const;
const std::string to_string() const;
bool operator == (const sc_time &) const;
bool operator != (const sc_time &) const;
bool operator < (const sc_time &) const;
bool operator <= (const sc_time &) const;
bool operator > (const sc_time &) const;
bool operator >= (const sc_time &) const;
sc_time &operator += (const sc_time &);
sc_time &operator -= (const sc_time &);
sc_time &operator *= (double);
sc_time &operator /= (double);
void print(std::ostream & =std::cout) const;
// Deprecated
static sc_time from_value(sc_dt::uint64);
static sc_time from_seconds(double);
static sc_time from_string(const char *str);
};
const sc_time operator + (const sc_time &, const sc_time &);
const sc_time operator - (const sc_time &, const sc_time &);
const sc_time operator * (const sc_time &, double);
const sc_time operator * (double, const sc_time &);
const sc_time operator / (const sc_time &, double);
double operator / (const sc_time &, const sc_time &);
std::ostream &operator << (std::ostream &, const sc_time &);
extern const sc_time SC_ZERO_TIME;
void sc_set_time_resolution(double, sc_time_unit);
sc_time sc_get_time_resolution();
const sc_time &sc_max_time();
// Deprecated
void sc_set_default_time_unit(double, sc_time_unit);
sc_time sc_get_default_time_unit();
// Nonstandard
class sc_time_tuple
{
public:
sc_time_tuple() : _value(), _unit(SC_SEC), _offset(1) {}
sc_time_tuple(const sc_time &);
bool has_value() const;
sc_dt::uint64 value() const;
// Normalized unit.
sc_time_unit unit() const { return _unit; }
// Normalized unit symbol.
const char *unit_symbol() const;
operator sc_time() const { return sc_time(to_double(), _unit); }
double to_double() const; // Relative to the normalized unit.
std::string to_string() const;
private:
sc_dt::uint64 _value;
sc_time_unit _unit;
unsigned _offset;
};
} // namespace sc_core
#endif //__SYSTEMC_EXT_CORE_SC_TIME_HH__
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