sc_time.hh revision 12923
1/* 2 * Copyright 2018 Google, Inc. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer; 8 * redistributions in binary form must reproduce the above copyright 9 * notice, this list of conditions and the following disclaimer in the 10 * documentation and/or other materials provided with the distribution; 11 * neither the name of the copyright holders nor the names of its 12 * contributors may be used to endorse or promote products derived from 13 * this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * Authors: Gabe Black 28 */ 29 30#ifndef __SYSTEMC_EXT_CORE_SC_TIME_HH__ 31#define __SYSTEMC_EXT_CORE_SC_TIME_HH__ 32 33#include <stdint.h> 34 35#include <iostream> 36 37#include "../dt/int/sc_nbdefs.hh" 38 39namespace sc_core 40{ 41 42enum sc_time_unit { 43 SC_FS = 0, 44 SC_PS, 45 SC_NS, 46 SC_US, 47 SC_MS, 48 SC_SEC 49}; 50 51class sc_time 52{ 53 public: 54 sc_time(); 55 sc_time(double, sc_time_unit); 56 sc_time(const sc_time &); 57 58 sc_time &operator = (const sc_time &); 59 60 sc_dt::uint64 value() const; 61 double to_double() const; 62 double to_seconds() const; 63 const std::string to_string() const; 64 65 bool operator == (const sc_time &) const; 66 bool operator != (const sc_time &) const; 67 bool operator < (const sc_time &) const; 68 bool operator <= (const sc_time &) const; 69 bool operator > (const sc_time &) const; 70 bool operator >= (const sc_time &) const; 71 72 sc_time &operator += (const sc_time &); 73 sc_time &operator -= (const sc_time &); 74 sc_time &operator *= (double); 75 sc_time &operator /= (double); 76 77 void print(std::ostream & =std::cout) const; 78 79 // Deprecated 80 static sc_time from_value(sc_dt::uint64); 81 static sc_time from_seconds(double); 82 static sc_time from_string(const char *str); 83}; 84 85const sc_time operator + (const sc_time &, const sc_time &); 86const sc_time operator - (const sc_time &, const sc_time &); 87 88const sc_time operator * (const sc_time &, double); 89const sc_time operator * (double, const sc_time &); 90const sc_time operator / (const sc_time &, double); 91double operator / (const sc_time &, const sc_time &); 92 93std::ostream &operator << (std::ostream &, const sc_time &); 94 95extern const sc_time SC_ZERO_TIME; 96 97void sc_set_time_resolution(double, sc_time_unit); 98sc_time sc_get_time_resolution(); 99const sc_time &sc_max_time(); 100 101// Deprecated 102void sc_set_default_time_unit(double, sc_time_unit); 103sc_time sc_get_default_time_unit(); 104 105} // namespace sc_core 106 107#endif //__SYSTEMC_EXT_CORE_SC_TIME_HH__ 108