feedc0de/boost_beast
1
0
Fork 0
forked from boostorg/beast
Code Pull Requests Activity

Tidy up namespaces in examples

Browse Source
This commit is contained in:
Vinnie Falco
2017-07-20 08:15:27 -07:00
parent c3e2de29ef
commit fc09a4cad1
6 changed files with 69 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files
example/http-crawl/http_crawl.cpp
+17 -14
View File
@@ -15,6 +15,9 @@
#include <cstdlib>
#include <iostream>
using tcp = boost::asio::ip::tcp; // from <boost/asio.hpp>
namespace http = beast::http; // from <beast/http.hpp>
template<class String>
void
err(beast::error_code const& ec, String const& what)
@@ -47,7 +50,7 @@ main(int, char const*[])
beast::error_code ec;
// Look up the domain name
boost::asio::ip::tcp::resolver r(ios);
tcp::resolver r(ios);
auto lookup = r.resolve({host, "http"}, ec);
if(ec)
{
@@ -56,7 +59,7 @@ main(int, char const*[])
}
// Now create a socket and connect
boost::asio::ip::tcp::socket sock(ios);
tcp::socket sock(ios);
boost::asio::connect(sock, lookup, ec);
if(ec)
{
@@ -73,30 +76,30 @@ main(int, char const*[])
}
// Set up an HTTP GET request
beast::http::request<beast::http::string_body> req;
http::request<http::string_body> req;
req.version = 11;
req.method(beast::http::verb::get);
req.method(http::verb::get);
req.target("/");
req.set(beast::http::field::host, host + std::string(":") +
req.set(http::field::host, host + std::string(":") +
boost::lexical_cast<std::string>(ep.port()));
req.set(beast::http::field::user_agent, BEAST_VERSION_STRING);
req.set(http::field::user_agent, BEAST_VERSION_STRING);
// Set the Connection: close field, this way the server will close
// the connection. This consumes less resources (no TIME_WAIT) because
// of the graceful close. It also makes things go a little faster.
//
req.set(beast::http::field::connection, "close");
req.set(http::field::connection, "close");
// Send the GET request
beast::http::write(sock, req, ec);
if(ec == beast::http::error::end_of_stream)
http::write(sock, req, ec);
if(ec == http::error::end_of_stream)
{
// This special error received on a write indicates that the
// semantics of the sent message are such that the connection
// should be closed after the response is done. We do a TCP/IP
// "half-close" here to shut down our end.
//
sock.shutdown(boost::asio::ip::tcp::socket::shutdown_send, ec);
sock.shutdown(tcp::socket::shutdown_send, ec);
if(ec)
return fail("shutdown", ec);
}
@@ -110,11 +113,11 @@ main(int, char const*[])
beast::multi_buffer b;
// The response will go into this object
beast::http::response<beast::http::string_body> res;
http::response<http::string_body> res;
// Read the response
beast::http::read(sock, b, res, ec);
if(ec == beast::http::error::end_of_stream)
http::read(sock, b, res, ec);
if(ec == http::error::end_of_stream)
{
// This special error means that the other end closed the socket,
// which is what we want since we asked for Connection: close.
@@ -130,7 +133,7 @@ main(int, char const*[])
// Now we do the other half of the close,
// which is to shut down the receiver.
sock.shutdown(boost::asio::ip::tcp::socket::shutdown_receive, ec);
sock.shutdown(tcp::socket::shutdown_receive, ec);
if(ec)
return fail("shutdown", ec);