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-rw-r--r--src/RemoteControl.cpp215
-rw-r--r--src/RemoteControl.h198
-rw-r--r--src/testremotecontrol/Makefile5
-rw-r--r--src/testremotecontrol/README4
-rw-r--r--src/testremotecontrol/test.cpp114
5 files changed, 536 insertions, 0 deletions
diff --git a/src/RemoteControl.cpp b/src/RemoteControl.cpp
new file mode 100644
index 0000000..b534914
--- /dev/null
+++ b/src/RemoteControl.cpp
@@ -0,0 +1,215 @@
+/*
+ Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012
+ Her Majesty the Queen in Right of Canada (Communications Research
+ Center Canada)
+
+ Written by Matthias P. Braendli, matthias.braendli@mpb.li, 2012
+ */
+/*
+ This file is part of CRC-DADMOD.
+
+ CRC-DADMOD is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as
+ published by the Free Software Foundation, either version 3 of the
+ License, or (at your option) any later version.
+
+ CRC-DADMOD is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with CRC-DADMOD. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <list>
+#include <string>
+#include <iostream>
+#include <string>
+#include <boost/bind.hpp>
+#include <boost/shared_ptr.hpp>
+#include <boost/enable_shared_from_this.hpp>
+#include <boost/asio.hpp>
+
+#include "RemoteControl.h"
+
+using boost::asio::ip::tcp;
+
+void
+RemoteControllerTelnet::process(long)
+{
+ welcome_ = "CRC-DABMOD Remote Control CLI\nWrite 'help' for help.\n**********\n";
+ prompt_ = "> ";
+
+ std::string in_message;
+ size_t length;
+
+ try {
+ boost::asio::io_service io_service;
+ tcp::acceptor acceptor(io_service, tcp::endpoint(tcp::v4(), port_));
+
+ while (running_) {
+ in_message = "";
+
+ tcp::socket socket(io_service);
+
+ acceptor.accept(socket);
+
+ boost::system::error_code ignored_error;
+
+ boost::asio::write(socket, boost::asio::buffer(welcome_), ignored_error);
+
+ while (running_ && in_message != "quit") {
+ boost::asio::write(socket, boost::asio::buffer(prompt_), ignored_error);
+
+ in_message = "";
+
+ boost::asio::streambuf buffer;
+ length = boost::asio::read_until( socket, buffer, "\n", ignored_error);
+
+ std::istream str(&buffer);
+ std::getline(str, in_message);
+
+ if (length == 0) {
+ std::cerr << "Connection terminated" << std::endl;
+ break;
+ }
+
+ while (in_message.length() > 0 &&
+ (in_message[in_message.length()-1] == '\r' || in_message[in_message.length()-1] == '\n')) {
+ in_message.erase(in_message.length()-1, 1);
+ }
+
+ if (in_message.length() == 0) {
+ continue;
+ }
+
+ std::cerr << "Got message '" << in_message << "'" << std::endl;
+
+ dispatch_command(socket, in_message);
+ }
+ std::cerr << "Closing socket" << std::endl;
+ socket.close();
+ }
+ }
+ catch (std::exception& e)
+ {
+ std::cerr << e.what() << std::endl;
+ }
+}
+
+void
+RemoteControllerTelnet::dispatch_command(tcp::socket& socket, string command)
+{
+ vector<string> cmd = tokenise_(command);
+
+ if (cmd[0] == "help") {
+ reply(socket,
+ "The following commands are supported:\n"
+ " list\n"
+ " * Lists the modules that are loaded\n"
+ " list MODULE\n"
+ " * Lists the parameters exported by module MODULE\n"
+ " show MODULE\n"
+ " * Lists all parameters and their values from module MODULE\n"
+ " get MODULE PARAMETER\n"
+ " * Gets the value for the specified PARAMETER from module MODULE\n"
+ " set MODULE PARAMETER VALUE\n"
+ " * Sets the value for the PARAMETER ofr module MODULE\n"
+ " quit\n"
+ " * Terminate this session\n"
+ "\n");
+ }
+ else if (cmd[0] == "list") {
+ stringstream ss;
+
+ if (cmd.size() == 1) {
+ for (list<RemoteControllable*>::iterator it = cohort_.begin(); it != cohort_.end(); it++) {
+ ss << (*it)->get_rc_name() << " ";
+ }
+ }
+ else if (cmd.size() == 2) {
+ try {
+ stringstream ss;
+ list<string> params = get_param_list_(cmd[1]);
+ for (list<string>::iterator it = params.begin(); it != params.end(); it++) {
+ ss << *it << " ";
+ }
+ reply(socket, ss.str());
+ }
+ catch (ParameterError &e) {
+ reply(socket, e.what());
+ }
+ }
+ else {
+ reply(socket, "Too many arguments for command 'list'");
+ }
+
+ reply(socket, ss.str());
+ }
+ else if (cmd[0] == "show") {
+ if (cmd.size() == 2) {
+ try {
+ stringstream ss;
+ list< vector<string> > r = get_param_list_values_(cmd[1]);
+ for (list< vector<string> >::iterator it = r.begin(); it != r.end(); it++) {
+ ss << (*it)[0] << ": " << (*it)[1] << endl;
+ }
+ reply(socket, ss.str());
+
+ }
+ catch (ParameterError &e) {
+ reply(socket, e.what());
+ }
+ }
+ else
+ {
+ reply(socket, "Incorrect parameters for command 'show'");
+ }
+ }
+ else if (cmd[0] == "get") {
+ if (cmd.size() == 3) {
+ try {
+ string r = get_param_(cmd[1], cmd[2]);
+ reply(socket, r);
+ }
+ catch (ParameterError &e) {
+ reply(socket, e.what());
+ }
+ }
+ else
+ {
+ reply(socket, "Incorrect parameters for command 'get'");
+ }
+ }
+ else if (cmd[0] == "set") {
+ if (cmd.size() == 4) {
+ try {
+ set_param_(cmd[1], cmd[2], cmd[3]);
+ reply(socket, "ok");
+ }
+ catch (ParameterError &e) {
+ reply(socket, e.what());
+ }
+ }
+ else
+ {
+ reply(socket, "Incorrect parameters for command 'get'");
+ }
+ }
+ else if (cmd[0] == "quit") {
+ reply(socket, "Goodbye");
+ }
+ else {
+ reply(socket, "Message not understood");
+ }
+}
+
+ void
+RemoteControllerTelnet::reply(tcp::socket& socket, string message)
+{
+ boost::system::error_code ignored_error;
+ stringstream ss;
+ ss << message << "\r\n";
+ boost::asio::write(socket, boost::asio::buffer(ss.str()), ignored_error);
+}
+
diff --git a/src/RemoteControl.h b/src/RemoteControl.h
new file mode 100644
index 0000000..8b0a30f
--- /dev/null
+++ b/src/RemoteControl.h
@@ -0,0 +1,198 @@
+/*
+ Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012
+ Her Majesty the Queen in Right of Canada (Communications Research
+ Center Canada)
+
+ Written by Matthias P. Braendli, matthias.braendli@mpb.li, 2012
+ */
+/*
+ This file is part of CRC-DADMOD.
+
+ CRC-DADMOD is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as
+ published by the Free Software Foundation, either version 3 of the
+ License, or (at your option) any later version.
+
+ CRC-DADMOD is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with CRC-DADMOD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _REMOTECONTROL_H
+#define _REMOTECONTROL_H
+
+#include <list>
+#include <string>
+#include <iostream>
+#include <string>
+#include <boost/bind.hpp>
+#include <boost/shared_ptr.hpp>
+#include <boost/enable_shared_from_this.hpp>
+#include <boost/asio.hpp>
+#include <boost/foreach.hpp>
+#include <boost/tokenizer.hpp>
+#include <boost/thread.hpp>
+#include <stdexcept>
+
+using namespace std;
+using boost::asio::ip::tcp;
+
+class ParameterError : public std::exception
+{
+ public:
+ ParameterError(string message) : message_(message) {}
+ ~ParameterError() throw() {};
+ const char* what() { return message_.c_str(); }
+
+ private:
+ string message_;
+};
+
+class RemoteControllable;
+
+/* Remote controllers (that recieve orders from the user) must implement BaseRemoteController */
+class BaseRemoteController {
+ public:
+ /* Add a new controllable under this controller's command */
+ virtual void enrol(RemoteControllable* controllable) = 0;
+};
+
+/* Objects that support remote control must implement the following class */
+class RemoteControllable {
+ public:
+ /* return a short name used to identify the controllable.
+ * It might be used in the commands the user has to type, so keep
+ * it short
+ */
+ virtual std::string get_rc_name() = 0;
+
+ /* Tell the controllable to enrol at the given controller */
+ virtual void enrol_at(BaseRemoteController& controller) {
+ controller.enrol(this);
+ }
+
+ /* Return a list of possible parameters that can be set */
+ virtual list<string> get_supported_parameters() = 0;
+
+ /* Base function to set parameters. */
+ virtual void set_parameter(string parameter, string value) = 0;
+
+ /* Convenience functions for other common types */
+ virtual void set_parameter(string parameter, double value) = 0;
+ virtual void set_parameter(string parameter, long value) = 0;
+
+ /* Getting a parameter always returns a string. */
+ virtual string get_parameter(string parameter) = 0;
+};
+
+/* Implements a Remote controller based on a simple telnet CLI
+ * that listens on localhost
+ */
+class RemoteControllerTelnet : public BaseRemoteController {
+ public:
+ RemoteControllerTelnet(int port) {
+ port_ = port;
+ running_ = false;
+ };
+
+ void start() {
+ running_ = true;
+ child_thread_ = boost::thread(&RemoteControllerTelnet::process, this, 0);
+ }
+
+ void stop() {
+ running_ = false;
+ child_thread_.interrupt();
+ child_thread_.join();
+ }
+
+ void process(long);
+
+ void dispatch_command(tcp::socket& socket, string command);
+
+ void reply(tcp::socket& socket, string message);
+
+ void enrol(RemoteControllable* controllable) {
+ cohort_.push_back(controllable);
+ }
+
+
+ private:
+ vector<string> tokenise_(string message) {
+ vector<string> all_tokens;
+
+ boost::char_separator<char> sep(" ");
+ boost::tokenizer< boost::char_separator<char> > tokens(message, sep);
+ BOOST_FOREACH (const string& t, tokens) {
+ all_tokens.push_back(t);
+ }
+ return all_tokens;
+ }
+
+ list<string> get_param_list_(string controllable) {
+ for (list<RemoteControllable*>::iterator it = cohort_.begin(); it != cohort_.end(); it++) {
+ if ((*it)->get_rc_name() == controllable)
+ {
+ return (*it)->get_supported_parameters();
+ }
+ }
+ throw ParameterError("Module name unknown");
+ }
+
+ list< vector<string> > get_param_list_values_(string controllable) {
+ list< vector<string> > allparams;
+ for (list<RemoteControllable*>::iterator it = cohort_.begin(); it != cohort_.end(); it++) {
+ if ((*it)->get_rc_name() == controllable)
+ {
+ list<string> params = (*it)->get_supported_parameters();
+ for (list<string>::iterator it2 = params.begin(); it2 != params.end(); it2++) {
+ vector<string> item;
+ item.push_back(*it2);
+ item.push_back((*it)->get_parameter(*it2));
+
+ allparams.push_back(item);
+ }
+ return allparams;
+ }
+ }
+ throw ParameterError("Module name unknown");
+ }
+
+ string get_param_(string controllable, string param) {
+ for (list<RemoteControllable*>::iterator it = cohort_.begin(); it != cohort_.end(); it++) {
+ if ((*it)->get_rc_name() == controllable)
+ {
+ return (*it)->get_parameter(param);
+ }
+ }
+ throw ParameterError("Module name unknown");
+ }
+
+ void set_param_(string controllable, string param, string value) {
+ for (list<RemoteControllable*>::iterator it = cohort_.begin(); it != cohort_.end(); it++) {
+ if ((*it)->get_rc_name() == controllable)
+ {
+ (*it)->set_parameter(param, value);
+ return;
+ }
+ }
+ throw ParameterError("Module name unknown");
+ }
+
+ bool running_;
+ boost::thread child_thread_;
+
+ /* This controller commands the controllables in the cohort */
+ list<RemoteControllable*> cohort_;
+
+ std::string welcome_;
+ std::string prompt_;
+
+ int port_;
+};
+
+#endif
diff --git a/src/testremotecontrol/Makefile b/src/testremotecontrol/Makefile
new file mode 100644
index 0000000..d5b5d7d
--- /dev/null
+++ b/src/testremotecontrol/Makefile
@@ -0,0 +1,5 @@
+CXXFLAGS=-Wall -g -lboost_system -lboost_thread -I..
+
+all: test
+
+test: test.cpp ../RemoteControl.cpp
diff --git a/src/testremotecontrol/README b/src/testremotecontrol/README
new file mode 100644
index 0000000..f161c6f
--- /dev/null
+++ b/src/testremotecontrol/README
@@ -0,0 +1,4 @@
+This folder contains a non-essential small
+demo + test program for the remote control
+
+2012, Matthias P. Braendli
diff --git a/src/testremotecontrol/test.cpp b/src/testremotecontrol/test.cpp
new file mode 100644
index 0000000..7733a96
--- /dev/null
+++ b/src/testremotecontrol/test.cpp
@@ -0,0 +1,114 @@
+#include <string>
+#include <unistd.h>
+#include "RemoteControl.h"
+
+using namespace std;
+
+class TestControllable : public RemoteControllable
+{
+ public:
+ TestControllable(string name)
+ {
+ name_ = name;
+ parameterlist_.push_back("foo");
+ parameterlist_.push_back("bar");
+ parameterlist_.push_back("baz");
+ }
+
+ std::string get_rc_name() { return name_; };
+
+ list<string> get_supported_parameters() {
+ return parameterlist_;
+ }
+
+ void set_parameter(string parameter, string value) {
+ if (parameter == "foo") {
+ stringstream ss(value);
+ ss >> foo_;
+ }
+ else if (parameter == "bar") {
+ bar_ = value;
+ }
+ else if (parameter == "baz") {
+ stringstream ss(value);
+ ss >> baz_;
+ }
+ else {
+ stringstream ss;
+ ss << "Parameter '" << parameter << "' is not exported by controllable " << get_rc_name();
+ throw ParameterError(ss.str());
+ }
+ }
+
+ void set_parameter(string parameter, double value) {
+ if (parameter == "baz") {
+ baz_ = value;
+ }
+ else {
+ stringstream ss;
+ ss << "Parameter '" << parameter << "' is not a double in controllable " << get_rc_name();
+ throw ParameterError(ss.str());
+ }
+ }
+
+ void set_parameter(string parameter, long value) {
+ if (parameter == "foo") {
+ foo_ = value;
+ }
+ else {
+ stringstream ss;
+ ss << "Parameter '" << parameter << "' is not a long in controllable " << get_rc_name();
+ throw ParameterError(ss.str());
+ }
+ }
+
+ string get_parameter(string parameter) {
+ stringstream ss;
+ if (parameter == "foo") {
+ ss << foo_;
+ }
+ else if (parameter == "bar") {
+ ss << bar_;
+ }
+ else if (parameter == "baz") {
+ ss << baz_;
+ }
+ else {
+ stringstream ss;
+ ss << "Parameter '" << parameter << "' is not exported by controllable " << get_rc_name();
+ throw ParameterError(ss.str());
+ }
+ return ss.str();
+ }
+
+ private:
+ long foo_;
+ std::string bar_;
+ std::string name_;
+ double baz_;
+ std::list<std::string> parameterlist_;
+
+};
+
+int main()
+{
+ RemoteControllerTelnet rc (2121);
+ TestControllable t("test1");
+ TestControllable t2("test2");
+
+ t.enrol_at(rc);
+ t2.enrol_at(rc);
+
+ rc.start();
+
+ std::cerr << "Thread has been launched" << std::endl;
+
+ sleep(100);
+
+ std::cerr << "Stop" << std::endl;
+
+ rc.stop();
+
+ return 0;
+}
+
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