mirror of
https://github.com/msgpack/msgpack-c
synced 2026-06-08 16:11:40 +00:00
Takatoshi Kondo
216 lines
7.5 KiB
C++
216 lines
7.5 KiB
C++
//
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// MessagePack for C++ static resolution routine
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//
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// Copyright (C) 2017 KONDO Takatoshi
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef MSGPACK_V1_TYPE_CPP11_CHRONO_HPP
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#define MSGPACK_V1_TYPE_CPP11_CHRONO_HPP
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#include "msgpack/versioning.hpp"
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#include "msgpack/adaptor/adaptor_base.hpp"
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#include "msgpack/adaptor/check_container_size.hpp"
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#include <chrono>
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namespace msgpack {
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/// @cond
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MSGPACK_API_VERSION_NAMESPACE(v1) {
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/// @endcond
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namespace adaptor {
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template <>
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struct as<std::chrono::system_clock::time_point> {
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typename std::chrono::system_clock::time_point operator()(msgpack::object const& o) const {
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if(o.type != msgpack::type::EXT) { throw msgpack::type_error(); }
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if(o.via.ext.type() != -1) { throw msgpack::type_error(); }
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std::chrono::system_clock::time_point tp;
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switch(o.via.ext.size) {
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case 4: {
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uint32_t sec;
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_msgpack_load32(uint32_t, o.via.ext.data(), &sec);
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tp += std::chrono::seconds(sec);
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} break;
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case 8: {
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uint64_t value;
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_msgpack_load64(uint64_t, o.via.ext.data(), &value);
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uint32_t nanosec = static_cast<uint32_t>(value >> 34);
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uint64_t sec = value & 0x00000003ffffffffLL;
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tp += std::chrono::duration_cast<std::chrono::system_clock::duration>(
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std::chrono::nanoseconds(nanosec));
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tp += std::chrono::seconds(sec);
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} break;
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case 12: {
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uint32_t nanosec;
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_msgpack_load32(uint32_t, o.via.ext.data(), &nanosec);
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int64_t sec;
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_msgpack_load64(int64_t, o.via.ext.data() + 4, &sec);
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tp += std::chrono::duration_cast<std::chrono::system_clock::duration>(
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std::chrono::nanoseconds(nanosec));
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tp += std::chrono::seconds(sec);
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} break;
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default:
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throw msgpack::type_error();
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}
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return tp;
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}
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};
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template <>
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struct convert<std::chrono::system_clock::time_point> {
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msgpack::object const& operator()(msgpack::object const& o, std::chrono::system_clock::time_point& v) const {
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if(o.type != msgpack::type::EXT) { throw msgpack::type_error(); }
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if(o.via.ext.type() != -1) { throw msgpack::type_error(); }
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std::chrono::system_clock::time_point tp;
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switch(o.via.ext.size) {
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case 4: {
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uint32_t sec;
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_msgpack_load32(uint32_t, o.via.ext.data(), &sec);
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tp += std::chrono::seconds(sec);
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v = tp;
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} break;
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case 8: {
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uint64_t value;
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_msgpack_load64(uint64_t, o.via.ext.data(), &value);
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uint32_t nanosec = static_cast<uint32_t>(value >> 34);
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uint64_t sec = value & 0x00000003ffffffffLL;
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tp += std::chrono::duration_cast<std::chrono::system_clock::duration>(
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std::chrono::nanoseconds(nanosec));
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tp += std::chrono::seconds(sec);
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v = tp;
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} break;
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case 12: {
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uint32_t nanosec;
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_msgpack_load32(uint32_t, o.via.ext.data(), &nanosec);
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int64_t sec;
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_msgpack_load64(int64_t, o.via.ext.data() + 4, &sec);
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tp += std::chrono::duration_cast<std::chrono::system_clock::duration>(
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std::chrono::nanoseconds(nanosec));
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tp += std::chrono::seconds(sec);
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v = tp;
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} break;
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default:
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throw msgpack::type_error();
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}
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return o;
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}
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};
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template <>
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struct pack<std::chrono::system_clock::time_point> {
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template <typename Stream>
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msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const std::chrono::system_clock::time_point& v) const {
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int64_t count = static_cast<int64_t>(v.time_since_epoch().count());
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int64_t nano_num =
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std::chrono::system_clock::duration::period::ratio::num *
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(1000000000 / std::chrono::system_clock::duration::period::ratio::den);
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int64_t nanosec = count % (1000000000 / nano_num) * nano_num;
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int64_t sec = 0;
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if (nanosec < 0) {
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nanosec = 1000000000 + nanosec;
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--sec;
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}
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sec += count
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* std::chrono::system_clock::duration::period::ratio::num
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/ std::chrono::system_clock::duration::period::ratio::den;
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if ((sec >> 34) == 0) {
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uint64_t data64 = (nanosec << 34) | sec;
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if ((data64 & 0xffffffff00000000L) == 0) {
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// timestamp 32
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o.pack_ext(4, -1);
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uint32_t data32 = static_cast<uint32_t>(data64);
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char buf[4];
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_msgpack_store32(buf, data32);
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o.pack_ext_body(buf, 4);
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}
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else {
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// timestamp 64
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o.pack_ext(8, -1);
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char buf[8];
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_msgpack_store64(buf, data64);
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o.pack_ext_body(buf, 8);
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}
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}
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else {
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// timestamp 96
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o.pack_ext(12, -1);
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char buf[12];
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_msgpack_store32(&buf[0], static_cast<uint32_t>(nanosec));
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_msgpack_store64(&buf[4], sec);
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o.pack_ext_body(buf, 12);
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}
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return o;
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}
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};
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template <>
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struct object_with_zone<std::chrono::system_clock::time_point> {
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void operator()(msgpack::object::with_zone& o, const std::chrono::system_clock::time_point& v) const {
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int64_t count = static_cast<int64_t>(v.time_since_epoch().count());
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int64_t nano_num =
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std::chrono::system_clock::duration::period::ratio::num *
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(1000000000 / std::chrono::system_clock::duration::period::ratio::den);
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int64_t nanosec = count % (1000000000 / nano_num) * nano_num;
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int64_t sec = 0;
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if (nanosec < 0) {
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nanosec = 1000000000 + nanosec;
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--sec;
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}
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sec += count
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* std::chrono::system_clock::duration::period::ratio::num
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/ std::chrono::system_clock::duration::period::ratio::den;
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if ((sec >> 34) == 0) {
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uint64_t data64 = (nanosec << 34) | sec;
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if ((data64 & 0xffffffff00000000L) == 0) {
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// timestamp 32
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o.type = msgpack::type::EXT;
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o.via.ext.size = 4;
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char* p = static_cast<char*>(o.zone.allocate_no_align(o.via.ext.size + 1));
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p[0] = -1;
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uint32_t data32 = static_cast<uint32_t>(data64);
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_msgpack_store32(&p[1], data32);
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o.via.ext.ptr = p;
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}
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else {
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// timestamp 64
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o.type = msgpack::type::EXT;
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o.via.ext.size = 8;
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char* p = static_cast<char*>(o.zone.allocate_no_align(o.via.ext.size + 1));
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p[0] = -1;
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_msgpack_store64(&p[1], data64);
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o.via.ext.ptr = p;
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}
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}
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else {
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// timestamp 96
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o.type = msgpack::type::EXT;
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o.via.ext.size = 12;
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char* p = static_cast<char*>(o.zone.allocate_no_align(o.via.ext.size + 1));
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p[0] = -1;
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_msgpack_store32(&p[1], static_cast<uint32_t>(nanosec));
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_msgpack_store64(&p[1 + 4], sec);
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o.via.ext.ptr = p;
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}
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}
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};
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} // namespace adaptor
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/// @cond
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} // MSGPACK_API_VERSION_NAMESPACE(v1)
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/// @endcond
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} // namespace msgpack
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#endif // MSGPACK_V1_TYPE_CPP11_CHRONO_HPP
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