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net is a namespace alias for boost::asio:

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The namespace alias beast::net replaces boost::asio in all code
and documentation.
This commit is contained in:
Vinnie Falco
2018-11-30 14:58:38 -08:00
parent a5739c3ea0
commit f995fd41a3
185 changed files with 2486 additions and 2392 deletions
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132
example/advanced/server/advanced_server.cpp
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@@ -33,20 +33,22 @@
#include <thread>
#include <vector>
namespace beast = boost::beast; // from <boost/beast.hpp>
namespace http = beast::http; // from <boost/beast/http.hpp>
namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
namespace net = boost::asio; // from <boost/asio.hpp>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
namespace http = boost::beast::http; // from <boost/beast/http.hpp>
namespace websocket = boost::beast::websocket; // from <boost/beast/websocket.hpp>
// Return a reasonable mime type based on the extension of a file.
boost::beast::string_view
mime_type(boost::beast::string_view path)
beast::string_view
mime_type(beast::string_view path)
{
using boost::beast::iequals;
using beast::iequals;
auto const ext = [&path]
{
auto const pos = path.rfind(".");
if(pos == boost::beast::string_view::npos)
return boost::beast::string_view{};
if(pos == beast::string_view::npos)
return beast::string_view{};
return path.substr(pos);
}();
if(iequals(ext, ".htm")) return "text/html";
@@ -77,8 +79,8 @@ mime_type(boost::beast::string_view path)
// The returned path is normalized for the platform.
std::string
path_cat(
boost::beast::string_view base,
boost::beast::string_view path)
beast::string_view base,
beast::string_view path)
{
if(base.empty())
return path.to_string();
@@ -109,13 +111,13 @@ template<
class Send>
void
handle_request(
boost::beast::string_view doc_root,
beast::string_view doc_root,
http::request<Body, http::basic_fields<Allocator>>&& req,
Send&& send)
{
// Returns a bad request response
auto const bad_request =
[&req](boost::beast::string_view why)
[&req](beast::string_view why)
{
http::response<http::string_body> res{http::status::bad_request, req.version()};
res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
@@ -128,7 +130,7 @@ handle_request(
// Returns a not found response
auto const not_found =
[&req](boost::beast::string_view target)
[&req](beast::string_view target)
{
http::response<http::string_body> res{http::status::not_found, req.version()};
res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
@@ -141,7 +143,7 @@ handle_request(
// Returns a server error response
auto const server_error =
[&req](boost::beast::string_view what)
[&req](beast::string_view what)
{
http::response<http::string_body> res{http::status::internal_server_error, req.version()};
res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
@@ -160,7 +162,7 @@ handle_request(
// Request path must be absolute and not contain "..".
if( req.target().empty() ||
req.target()[0] != '/' ||
req.target().find("..") != boost::beast::string_view::npos)
req.target().find("..") != beast::string_view::npos)
return send(bad_request("Illegal request-target"));
// Build the path to the requested file
@@ -169,12 +171,12 @@ handle_request(
path.append("index.html");
// Attempt to open the file
boost::beast::error_code ec;
beast::error_code ec;
http::file_body::value_type body;
body.open(path.c_str(), boost::beast::file_mode::scan, ec);
body.open(path.c_str(), beast::file_mode::scan, ec);
// Handle the case where the file doesn't exist
if(ec == boost::system::errc::no_such_file_or_directory)
if(ec == beast::errc::no_such_file_or_directory)
return send(not_found(req.target()));
// Handle an unknown error
@@ -211,7 +213,7 @@ handle_request(
// Report a failure
void
fail(boost::system::error_code ec, char const* what)
fail(beast::error_code ec, char const* what)
{
std::cerr << what << ": " << ec.message() << "\n";
}
@@ -220,10 +222,10 @@ fail(boost::system::error_code ec, char const* what)
class websocket_session : public std::enable_shared_from_this<websocket_session>
{
websocket::stream<tcp::socket> ws_;
boost::asio::strand<
boost::asio::io_context::executor_type> strand_;
boost::asio::steady_timer timer_;
boost::beast::multi_buffer buffer_;
net::strand<
net::io_context::executor_type> strand_;
net::steady_timer timer_;
beast::multi_buffer buffer_;
char ping_state_ = 0;
public:
@@ -261,7 +263,7 @@ public:
// Accept the websocket handshake
ws_.async_accept(
req,
boost::asio::bind_executor(
net::bind_executor(
strand_,
std::bind(
&websocket_session::on_accept,
@@ -270,10 +272,10 @@ public:
}
void
on_accept(boost::system::error_code ec)
on_accept(beast::error_code ec)
{
// Happens when the timer closes the socket
if(ec == boost::asio::error::operation_aborted)
if(ec == net::error::operation_aborted)
return;
if(ec)
@@ -285,9 +287,9 @@ public:
// Called when the timer expires.
void
on_timer(boost::system::error_code ec)
on_timer(beast::error_code ec)
{
if(ec && ec != boost::asio::error::operation_aborted)
if(ec && ec != net::error::operation_aborted)
return fail(ec, "timer");
// See if the timer really expired since the deadline may have moved.
@@ -305,7 +307,7 @@ public:
// Now send the ping
ws_.async_ping({},
boost::asio::bind_executor(
net::bind_executor(
strand_,
std::bind(
&websocket_session::on_ping,
@@ -319,7 +321,7 @@ public:
// we never got back a control frame, so close.
// Closing the socket cancels all outstanding operations. They
// will complete with boost::asio::error::operation_aborted
// will complete with net::error::operation_aborted
ws_.next_layer().shutdown(tcp::socket::shutdown_both, ec);
ws_.next_layer().close(ec);
return;
@@ -328,7 +330,7 @@ public:
// Wait on the timer
timer_.async_wait(
boost::asio::bind_executor(
net::bind_executor(
strand_,
std::bind(
&websocket_session::on_timer,
@@ -349,10 +351,10 @@ public:
// Called after a ping is sent.
void
on_ping(boost::system::error_code ec)
on_ping(beast::error_code ec)
{
// Happens when the timer closes the socket
if(ec == boost::asio::error::operation_aborted)
if(ec == net::error::operation_aborted)
return;
if(ec)
@@ -375,7 +377,7 @@ public:
void
on_control_callback(
websocket::frame_type kind,
boost::beast::string_view payload)
beast::string_view payload)
{
boost::ignore_unused(kind, payload);
@@ -389,7 +391,7 @@ public:
// Read a message into our buffer
ws_.async_read(
buffer_,
boost::asio::bind_executor(
net::bind_executor(
strand_,
std::bind(
&websocket_session::on_read,
@@ -400,13 +402,13 @@ public:
void
on_read(
boost::system::error_code ec,
beast::error_code ec,
std::size_t bytes_transferred)
{
boost::ignore_unused(bytes_transferred);
// Happens when the timer closes the socket
if(ec == boost::asio::error::operation_aborted)
if(ec == net::error::operation_aborted)
return;
// This indicates that the websocket_session was closed
@@ -423,7 +425,7 @@ public:
ws_.text(ws_.got_text());
ws_.async_write(
buffer_.data(),
boost::asio::bind_executor(
net::bind_executor(
strand_,
std::bind(
&websocket_session::on_write,
@@ -434,13 +436,13 @@ public:
void
on_write(
boost::system::error_code ec,
beast::error_code ec,
std::size_t bytes_transferred)
{
boost::ignore_unused(bytes_transferred);
// Happens when the timer closes the socket
if(ec == boost::asio::error::operation_aborted)
if(ec == net::error::operation_aborted)
return;
if(ec)
@@ -530,7 +532,7 @@ class http_session : public std::enable_shared_from_this<http_session>
http::async_write(
self_.socket_,
msg_,
boost::asio::bind_executor(
net::bind_executor(
self_.strand_,
std::bind(
&http_session::on_write,
@@ -551,10 +553,10 @@ class http_session : public std::enable_shared_from_this<http_session>
};
tcp::socket socket_;
boost::asio::strand<
boost::asio::io_context::executor_type> strand_;
boost::asio::steady_timer timer_;
boost::beast::flat_buffer buffer_;
net::strand<
net::io_context::executor_type> strand_;
net::steady_timer timer_;
beast::flat_buffer buffer_;
std::shared_ptr<std::string const> doc_root_;
http::request<http::string_body> req_;
queue queue_;
@@ -580,8 +582,8 @@ public:
{
// Make sure we run on the strand
if(! strand_.running_in_this_thread())
return boost::asio::post(
boost::asio::bind_executor(
return net::post(
net::bind_executor(
strand_,
std::bind(
&http_session::run,
@@ -606,7 +608,7 @@ public:
// Read a request
http::async_read(socket_, buffer_, req_,
boost::asio::bind_executor(
net::bind_executor(
strand_,
std::bind(
&http_session::on_read,
@@ -616,9 +618,9 @@ public:
// Called when the timer expires.
void
on_timer(boost::system::error_code ec)
on_timer(beast::error_code ec)
{
if(ec && ec != boost::asio::error::operation_aborted)
if(ec && ec != net::error::operation_aborted)
return fail(ec, "timer");
// Check if this has been upgraded to Websocket
@@ -629,7 +631,7 @@ public:
if(timer_.expiry() <= std::chrono::steady_clock::now())
{
// Closing the socket cancels all outstanding operations. They
// will complete with boost::asio::error::operation_aborted
// will complete with net::error::operation_aborted
socket_.shutdown(tcp::socket::shutdown_both, ec);
socket_.close(ec);
return;
@@ -637,7 +639,7 @@ public:
// Wait on the timer
timer_.async_wait(
boost::asio::bind_executor(
net::bind_executor(
strand_,
std::bind(
&http_session::on_timer,
@@ -646,10 +648,10 @@ public:
}
void
on_read(boost::system::error_code ec)
on_read(beast::error_code ec)
{
// Happens when the timer closes the socket
if(ec == boost::asio::error::operation_aborted)
if(ec == net::error::operation_aborted)
return;
// This means they closed the connection
@@ -681,10 +683,10 @@ public:
}
void
on_write(boost::system::error_code ec, bool close)
on_write(beast::error_code ec, bool close)
{
// Happens when the timer closes the socket
if(ec == boost::asio::error::operation_aborted)
if(ec == net::error::operation_aborted)
return;
if(ec)
@@ -709,7 +711,7 @@ public:
do_close()
{
// Send a TCP shutdown
boost::system::error_code ec;
beast::error_code ec;
socket_.shutdown(tcp::socket::shutdown_send, ec);
// At this point the connection is closed gracefully
@@ -727,14 +729,14 @@ class listener : public std::enable_shared_from_this<listener>
public:
listener(
boost::asio::io_context& ioc,
net::io_context& ioc,
tcp::endpoint endpoint,
std::shared_ptr<std::string const> const& doc_root)
: acceptor_(ioc)
, socket_(ioc)
, doc_root_(doc_root)
{
boost::system::error_code ec;
beast::error_code ec;
// Open the acceptor
acceptor_.open(endpoint.protocol(), ec);
@@ -745,7 +747,7 @@ public:
}
// Allow address reuse
acceptor_.set_option(boost::asio::socket_base::reuse_address(true), ec);
acceptor_.set_option(net::socket_base::reuse_address(true), ec);
if(ec)
{
fail(ec, "set_option");
@@ -762,7 +764,7 @@ public:
// Start listening for connections
acceptor_.listen(
boost::asio::socket_base::max_listen_connections, ec);
net::socket_base::max_listen_connections, ec);
if(ec)
{
fail(ec, "listen");
@@ -791,7 +793,7 @@ public:
}
void
on_accept(boost::system::error_code ec)
on_accept(beast::error_code ec)
{
if(ec)
{
@@ -823,13 +825,13 @@ int main(int argc, char* argv[])
" advanced-server 0.0.0.0 8080 . 1\n";
return EXIT_FAILURE;
}
auto const address = boost::asio::ip::make_address(argv[1]);
auto const address = net::ip::make_address(argv[1]);
auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
auto const doc_root = std::make_shared<std::string>(argv[3]);
auto const threads = std::max<int>(1, std::atoi(argv[4]));
// The io_context is required for all I/O
boost::asio::io_context ioc{threads};
net::io_context ioc{threads};
// Create and launch a listening port
std::make_shared<listener>(
@@ -838,9 +840,9 @@ int main(int argc, char* argv[])
doc_root)->run();
// Capture SIGINT and SIGTERM to perform a clean shutdown
boost::asio::signal_set signals(ioc, SIGINT, SIGTERM);
net::signal_set signals(ioc, SIGINT, SIGTERM);
signals.async_wait(
[&](boost::system::error_code const&, int)
[&](beast::error_code const&, int)
{
// Stop the `io_context`. This will cause `run()`
// to return immediately, eventually destroying the