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Diffstat (limited to '3rdparty/asio/src/examples/cpp03/porthopper/protocol.hpp')
-rw-r--r-- | 3rdparty/asio/src/examples/cpp03/porthopper/protocol.hpp | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/3rdparty/asio/src/examples/cpp03/porthopper/protocol.hpp b/3rdparty/asio/src/examples/cpp03/porthopper/protocol.hpp deleted file mode 100644 index d9dcb2e13eb..00000000000 --- a/3rdparty/asio/src/examples/cpp03/porthopper/protocol.hpp +++ /dev/null @@ -1,156 +0,0 @@ -// -// protocol.hpp -// ~~~~~~~~~~~~ -// -// Copyright (c) 2003-2021 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) -// - -#ifndef PORTHOPPER_PROTOCOL_HPP -#define PORTHOPPER_PROTOCOL_HPP - -#include <boost/array.hpp> -#include <asio.hpp> -#include <cstring> -#include <iomanip> -#include <string> -#include <strstream> - -// This request is sent by the client to the server over a TCP connection. -// The client uses it to perform three functions: -// - To request that data start being sent to a given port. -// - To request that data is no longer sent to a given port. -// - To change the target port to another. -class control_request -{ -public: - // Construct an empty request. Used when receiving. - control_request() - { - } - - // Create a request to start sending data to a given port. - static const control_request start(unsigned short port) - { - return control_request(0, port); - } - - // Create a request to stop sending data to a given port. - static const control_request stop(unsigned short port) - { - return control_request(port, 0); - } - - // Create a request to change the port that data is sent to. - static const control_request change( - unsigned short old_port, unsigned short new_port) - { - return control_request(old_port, new_port); - } - - // Get the old port. Returns 0 for start requests. - unsigned short old_port() const - { - std::istrstream is(data_, encoded_port_size); - unsigned short port = 0; - is >> std::setw(encoded_port_size) >> std::hex >> port; - return port; - } - - // Get the new port. Returns 0 for stop requests. - unsigned short new_port() const - { - std::istrstream is(data_ + encoded_port_size, encoded_port_size); - unsigned short port = 0; - is >> std::setw(encoded_port_size) >> std::hex >> port; - return port; - } - - // Obtain buffers for reading from or writing to a socket. - boost::array<asio::mutable_buffer, 1> to_buffers() - { - boost::array<asio::mutable_buffer, 1> buffers - = { { asio::buffer(data_) } }; - return buffers; - } - -private: - // Construct with specified old and new ports. - control_request(unsigned short old_port_number, - unsigned short new_port_number) - { - std::ostrstream os(data_, control_request_size); - os << std::setw(encoded_port_size) << std::hex << old_port_number; - os << std::setw(encoded_port_size) << std::hex << new_port_number; - } - - // The length in bytes of a control_request and its components. - enum - { - encoded_port_size = 4, // 16-bit port in hex. - control_request_size = encoded_port_size * 2 - }; - - // The encoded request data. - char data_[control_request_size]; -}; - -// This frame is sent from the server to subscribed clients over UDP. -class frame -{ -public: - // The maximum allowable length of the payload. - enum { payload_size = 32 }; - - // Construct an empty frame. Used when receiving. - frame() - { - } - - // Construct a frame with specified frame number and payload. - frame(unsigned long frame_number, const std::string& payload_data) - { - std::ostrstream os(data_, frame_size); - os << std::setw(encoded_number_size) << std::hex << frame_number; - os << std::setw(payload_size) - << std::setfill(' ') << payload_data.substr(0, payload_size); - } - - // Get the frame number. - unsigned long number() const - { - std::istrstream is(data_, encoded_number_size); - unsigned long frame_number = 0; - is >> std::setw(encoded_number_size) >> std::hex >> frame_number; - return frame_number; - } - - // Get the payload data. - const std::string payload() const - { - return std::string(data_ + encoded_number_size, payload_size); - } - - // Obtain buffers for reading from or writing to a socket. - boost::array<asio::mutable_buffer, 1> to_buffers() - { - boost::array<asio::mutable_buffer, 1> buffers - = { { asio::buffer(data_) } }; - return buffers; - } - -private: - // The length in bytes of a frame and its components. - enum - { - encoded_number_size = 8, // Frame number in hex. - frame_size = encoded_number_size + payload_size - }; - - // The encoded frame data. - char data_[frame_size]; -}; - -#endif // PORTHOPPER_PROTOCOL_HPP |