mirror of
https://github.com/tristanpenman/valijson.git
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4c9864de73
This commit contains the third major design of a C++ library for JSON Schema validation. It is definitely not what I would consider production-ready, but I do think that the overall design of the library is robust.
93 lines
2.1 KiB
C++
93 lines
2.1 KiB
C++
//
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// multiget1.cpp
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// ~~~~~~~~~~~~~
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//
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// Copyright (c) 2009-2013 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#include <urdl/read_stream.hpp>
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#include <boost/bind.hpp>
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#include <boost/shared_ptr.hpp>
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#include <boost/enable_shared_from_this.hpp>
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#include <iostream>
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#include <fstream>
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#include <string>
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class downloader
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: public boost::enable_shared_from_this<downloader>
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{
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public:
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downloader(boost::asio::io_service& io_service)
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: read_stream_(io_service)
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{
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}
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void start(const urdl::url& url, const std::string& file)
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{
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file_ = file;
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read_stream_.async_open(url,
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boost::bind(&downloader::handle_open,
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shared_from_this(), _1));
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}
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private:
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void handle_open(const boost::system::error_code& ec)
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{
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if (!ec)
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{
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ofstream_.open(file_.c_str(), std::ios_base::out | std::ios_base::binary);
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read_stream_.async_read_some(
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boost::asio::buffer(buffer_),
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boost::bind(&downloader::handle_read,
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shared_from_this(), _1, _2));
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}
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}
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void handle_read(const boost::system::error_code& ec, std::size_t length)
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{
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if (!ec)
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{
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ofstream_.write(buffer_, length);
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read_stream_.async_read_some(
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boost::asio::buffer(buffer_),
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boost::bind(&downloader::handle_read,
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shared_from_this(), _1, _2));
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}
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}
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urdl::read_stream read_stream_;
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std::string file_;
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std::ofstream ofstream_;
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char buffer_[1024];
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};
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int main(int argc, char* argv[])
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{
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try
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{
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if (argc < 3 || argc % 2 == 0)
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{
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std::cerr << "Usage: multiget1 <url> <outputfile> ";
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std::cerr << "[<url> <outputfile> ...]\n";
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return 1;
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}
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boost::asio::io_service io_service;
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for (int i = 1; i < argc; i += 2)
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{
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boost::shared_ptr<downloader> d(new downloader(io_service));
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d->start(argv[i], argv[i + 1]);
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}
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io_service.run();
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}
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catch (std::exception& e)
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{
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std::cerr << "Exception: " << e.what() << std::endl;
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}
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}
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