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https://github.com/msgpack/msgpack-c.git
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1bfcf55469
msgpack::unpacked is a typedef of the msgpack::object_handle. I recommend using msgpack::object_handle. It can be used not only holding unpacked msgpack objects but also msgpack::objects that are created by any types. Replaced unpack() APIs in test codes and examples. They used to use old APIs.
95 lines
2.7 KiB
C++
95 lines
2.7 KiB
C++
// MessagePack for C++ example
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//
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// Copyright (C) 2015 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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#include <string>
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#include <sstream>
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#include <iostream>
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#include <algorithm>
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#include <cctype>
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#include <msgpack.hpp>
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struct user {
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std::string name;
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int age;
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std::string address;
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MSGPACK_DEFINE(name, age, address);
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};
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struct proc:boost::static_visitor<void> {
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void operator()(std::string& v) const {
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std::cout << " match std::string& v" << std::endl;
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std::cout << " v: " << v << std::endl;
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std::cout << " capitalize" << std::endl;
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for (std::string::iterator it = v.begin(), end = v.end();
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it != end;
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++it) {
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*it = std::toupper(*it);
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}
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}
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void operator()(std::vector<msgpack::type::variant>& v) const {
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std::cout << "match vector (msgpack::type::ARRAY)" << std::endl;
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std::vector<msgpack::type::variant>::iterator it = v.begin();
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std::vector<msgpack::type::variant>::const_iterator end = v.end();
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for (; it != end; ++it) {
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boost::apply_visitor(*this, *it);
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}
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}
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template <typename T>
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void operator()(T const&) const {
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std::cout << " match others" << std::endl;
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}
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};
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void print(std::string const& buf) {
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for (std::string::const_iterator it = buf.begin(), end = buf.end();
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it != end;
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++it) {
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std::cout
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<< std::setw(2)
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<< std::hex
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<< std::setfill('0')
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<< (static_cast<int>(*it) & 0xff)
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<< ' ';
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}
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std::cout << std::dec << std::endl;
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}
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int main() {
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std::stringstream ss1;
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user u;
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u.name = "Takatoshi Kondo";
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u.age = 42;
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u.address = "Tokyo, JAPAN";
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std::cout << "Packing object." << std::endl;
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msgpack::pack(ss1, u);
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print(ss1.str());
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msgpack::object_handle oh1 = msgpack::unpack(ss1.str().data(), ss1.str().size());
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msgpack::object const& obj1 = oh1.get();
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std::cout << "Unpacked msgpack object." << std::endl;
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std::cout << obj1 << std::endl;
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msgpack::type::variant v = obj1.as<msgpack::type::variant>();
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std::cout << "Applying proc..." << std::endl;
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boost::apply_visitor(proc(), v);
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std::stringstream ss2;
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std::cout << "Packing modified object." << std::endl;
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msgpack::pack(ss2, v);
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print(ss2.str());
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msgpack::object_handle oh2 = msgpack::unpack(ss2.str().data(), ss2.str().size());
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msgpack::object const& obj2 = oh2.get();
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std::cout << "Modified msgpack object." << std::endl;
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std::cout << obj2 << std::endl;
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}
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