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-rw-r--r--3rdparty/asio/src/examples/cpp03/nonblocking/third_party_lib.cpp240
1 files changed, 0 insertions, 240 deletions
diff --git a/3rdparty/asio/src/examples/cpp03/nonblocking/third_party_lib.cpp b/3rdparty/asio/src/examples/cpp03/nonblocking/third_party_lib.cpp
deleted file mode 100644
index 8ec06f6034d..00000000000
--- a/3rdparty/asio/src/examples/cpp03/nonblocking/third_party_lib.cpp
+++ /dev/null
@@ -1,240 +0,0 @@
-//
-// third_party_lib.cpp
-// ~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#include <asio.hpp>
-#include <boost/array.hpp>
-#include <boost/bind.hpp>
-#include <boost/shared_ptr.hpp>
-#include <boost/enable_shared_from_this.hpp>
-#include <iostream>
-
-using asio::ip::tcp;
-
-namespace third_party_lib {
-
-// Simulation of a third party library that wants to perform read and write
-// operations directly on a socket. It needs to be polled to determine whether
-// it requires a read or write operation, and notified when the socket is ready
-// for reading or writing.
-class session
-{
-public:
- session(tcp::socket& socket)
- : socket_(socket),
- state_(reading)
- {
- }
-
- // Returns true if the third party library wants to be notified when the
- // socket is ready for reading.
- bool want_read() const
- {
- return state_ == reading;
- }
-
- // Notify that third party library that it should perform its read operation.
- void do_read(asio::error_code& ec)
- {
- if (std::size_t len = socket_.read_some(asio::buffer(data_), ec))
- {
- write_buffer_ = asio::buffer(data_, len);
- state_ = writing;
- }
- }
-
- // Returns true if the third party library wants to be notified when the
- // socket is ready for writing.
- bool want_write() const
- {
- return state_ == writing;
- }
-
- // Notify that third party library that it should perform its write operation.
- void do_write(asio::error_code& ec)
- {
- if (std::size_t len = socket_.write_some(
- asio::buffer(write_buffer_), ec))
- {
- write_buffer_ = write_buffer_ + len;
- state_ = asio::buffer_size(write_buffer_) > 0 ? writing : reading;
- }
- }
-
-private:
- tcp::socket& socket_;
- enum { reading, writing } state_;
- boost::array<char, 128> data_;
- asio::const_buffer write_buffer_;
-};
-
-} // namespace third_party_lib
-
-// The glue between asio's sockets and the third party library.
-class connection
- : public boost::enable_shared_from_this<connection>
-{
-public:
- typedef boost::shared_ptr<connection> pointer;
-
- static pointer create(asio::io_context& io_context)
- {
- return pointer(new connection(io_context));
- }
-
- tcp::socket& socket()
- {
- return socket_;
- }
-
- void start()
- {
- // Put the socket into non-blocking mode.
- socket_.non_blocking(true);
-
- start_operations();
- }
-
-private:
- connection(asio::io_context& io_context)
- : socket_(io_context),
- session_impl_(socket_),
- read_in_progress_(false),
- write_in_progress_(false)
- {
- }
-
- void start_operations()
- {
- // Start a read operation if the third party library wants one.
- if (session_impl_.want_read() && !read_in_progress_)
- {
- read_in_progress_ = true;
- socket_.async_wait(tcp::socket::wait_read,
- boost::bind(&connection::handle_read,
- shared_from_this(),
- asio::placeholders::error));
- }
-
- // Start a write operation if the third party library wants one.
- if (session_impl_.want_write() && !write_in_progress_)
- {
- write_in_progress_ = true;
- socket_.async_wait(tcp::socket::wait_write,
- boost::bind(&connection::handle_write,
- shared_from_this(),
- asio::placeholders::error));
- }
- }
-
- void handle_read(asio::error_code ec)
- {
- read_in_progress_ = false;
-
- // Notify third party library that it can perform a read.
- if (!ec)
- session_impl_.do_read(ec);
-
- // The third party library successfully performed a read on the socket.
- // Start new read or write operations based on what it now wants.
- if (!ec || ec == asio::error::would_block)
- start_operations();
-
- // Otherwise, an error occurred. Closing the socket cancels any outstanding
- // asynchronous read or write operations. The connection object will be
- // destroyed automatically once those outstanding operations complete.
- else
- socket_.close();
- }
-
- void handle_write(asio::error_code ec)
- {
- write_in_progress_ = false;
-
- // Notify third party library that it can perform a write.
- if (!ec)
- session_impl_.do_write(ec);
-
- // The third party library successfully performed a write on the socket.
- // Start new read or write operations based on what it now wants.
- if (!ec || ec == asio::error::would_block)
- start_operations();
-
- // Otherwise, an error occurred. Closing the socket cancels any outstanding
- // asynchronous read or write operations. The connection object will be
- // destroyed automatically once those outstanding operations complete.
- else
- socket_.close();
- }
-
-private:
- tcp::socket socket_;
- third_party_lib::session session_impl_;
- bool read_in_progress_;
- bool write_in_progress_;
-};
-
-class server
-{
-public:
- server(asio::io_context& io_context, unsigned short port)
- : acceptor_(io_context, tcp::endpoint(tcp::v4(), port))
- {
- start_accept();
- }
-
-private:
- void start_accept()
- {
- connection::pointer new_connection =
- connection::create(acceptor_.get_executor().context());
-
- acceptor_.async_accept(new_connection->socket(),
- boost::bind(&server::handle_accept, this, new_connection,
- asio::placeholders::error));
- }
-
- void handle_accept(connection::pointer new_connection,
- const asio::error_code& error)
- {
- if (!error)
- {
- new_connection->start();
- }
-
- start_accept();
- }
-
- tcp::acceptor acceptor_;
-};
-
-int main(int argc, char* argv[])
-{
- try
- {
- if (argc != 2)
- {
- std::cerr << "Usage: third_party_lib <port>\n";
- return 1;
- }
-
- asio::io_context io_context;
-
- using namespace std; // For atoi.
- server s(io_context, atoi(argv[1]));
-
- io_context.run();
- }
- catch (std::exception& e)
- {
- std::cerr << "Exception: " << e.what() << "\n";
- }
-
- return 0;
-}