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Diffstat (limited to 'src/lib/netlist/plib/ptime.h')
-rw-r--r-- | src/lib/netlist/plib/ptime.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/src/lib/netlist/plib/ptime.h b/src/lib/netlist/plib/ptime.h new file mode 100644 index 00000000000..4767a197342 --- /dev/null +++ b/src/lib/netlist/plib/ptime.h @@ -0,0 +1,136 @@ +// license:GPL-2.0+ +// copyright-holders:Couriersud +/* + * ptime.h + */ + +#ifndef PTIME_H_ +#define PTIME_H_ + +#include "pconfig.h" +#include "ptypes.h" + +#include <cstdint> + +// ---------------------------------------------------------------------------------------- +// netlist_time +// ---------------------------------------------------------------------------------------- + +namespace plib +{ + + template <typename TYPE, TYPE RES> + struct ptime final + { + public: + + using internal_type = TYPE; + using mult_type = TYPE; + + constexpr ptime() noexcept : m_time(0) {} + + ~ptime() noexcept = default; + + constexpr ptime(const ptime &rhs) noexcept = default; + constexpr ptime(ptime &&rhs) noexcept = default; + constexpr explicit ptime(const internal_type &time) noexcept : m_time(time) {} + constexpr explicit ptime(internal_type &&time) noexcept : m_time(time) {} + C14CONSTEXPR ptime &operator=(const ptime &rhs) noexcept = default; + C14CONSTEXPR ptime &operator=(ptime &&rhs) noexcept = default; + + constexpr explicit ptime(const double t) = delete; + //: m_time((internal_type) ( t * (double) resolution)) { } + constexpr explicit ptime(const internal_type nom, const internal_type den) noexcept + : m_time(nom * (RES / den)) { } + + C14CONSTEXPR ptime &operator+=(const ptime rhs) noexcept { m_time += rhs.m_time; return *this; } + C14CONSTEXPR ptime &operator-=(const ptime rhs) noexcept { m_time -= rhs.m_time; return *this; } + C14CONSTEXPR ptime &operator*=(const mult_type factor) noexcept { m_time *= static_cast<internal_type>(factor); return *this; } + + friend C14CONSTEXPR ptime operator-(ptime lhs, const ptime rhs) noexcept + { + return lhs -= rhs; + } + + friend C14CONSTEXPR ptime operator+(ptime lhs, const ptime rhs) noexcept + { + return lhs += rhs; + } + + friend C14CONSTEXPR ptime operator*(ptime lhs, const mult_type &factor) noexcept + { + return lhs *= factor; + } + + friend constexpr mult_type operator/(const ptime lhs, const ptime rhs) noexcept + { + return static_cast<mult_type>(lhs.m_time / rhs.m_time); + } + + friend constexpr bool operator<(const ptime lhs, const ptime rhs) noexcept + { + return (lhs.m_time < rhs.m_time); + } + + friend constexpr bool operator>(const ptime lhs, const ptime rhs) noexcept + { + return (rhs < lhs); + } + + friend constexpr bool operator<=(const ptime lhs, const ptime rhs) noexcept + { + return !(lhs > rhs); + } + + friend constexpr bool operator>=(const ptime lhs, const ptime rhs) noexcept + { + return !(lhs < rhs); + } + + friend constexpr bool operator==(const ptime lhs, const ptime rhs) noexcept + { + return lhs.m_time == rhs.m_time; + } + + friend constexpr bool operator!=(const ptime lhs, const ptime rhs) noexcept + { + return !(lhs == rhs); + } + + constexpr internal_type as_raw() const noexcept { return m_time; } + constexpr double as_double() const noexcept + { + return static_cast<double>(m_time) * inv_res; + } + + // for save states .... + C14CONSTEXPR internal_type *get_internaltype_ptr() noexcept { return &m_time; } + + static constexpr ptime from_nsec(const internal_type ns) noexcept { return ptime(ns, UINT64_C(1000000000)); } + static constexpr ptime from_usec(const internal_type us) noexcept { return ptime(us, UINT64_C( 1000000)); } + static constexpr ptime from_msec(const internal_type ms) noexcept { return ptime(ms, UINT64_C( 1000)); } + static constexpr ptime from_sec(const internal_type s) noexcept { return ptime(s, UINT64_C( 1)); } + static constexpr ptime from_hz(const internal_type hz) noexcept { return ptime(1 , hz); } + static constexpr ptime from_raw(const internal_type raw) noexcept { return ptime(raw); } + static constexpr ptime from_double(const double t) noexcept { return ptime(static_cast<internal_type>( t * static_cast<double>(RES)), RES); } + + static constexpr ptime zero() noexcept { return ptime(0, RES); } + static constexpr ptime quantum() noexcept { return ptime(1, RES); } + static constexpr ptime never() noexcept { return ptime(plib::numeric_limits<internal_type>::max(), RES); } + static constexpr internal_type resolution() noexcept { return RES; } + + constexpr internal_type in_nsec() const noexcept { return m_time / (RES / UINT64_C(1000000000)); } + constexpr internal_type in_usec() const noexcept { return m_time / (RES / UINT64_C( 1000000)); } + constexpr internal_type in_msec() const noexcept { return m_time / (RES / UINT64_C( 1000)); } + constexpr internal_type in_sec() const noexcept { return m_time / (RES / UINT64_C( 1)); } + + private: + static constexpr const double inv_res = 1.0 / static_cast<double>(RES); + internal_type m_time; + }; + + +} // namespace plib + + +#endif /* PTIME_H_ */ |