mirror of
https://github.com/FairRootGroup/FairMQ.git
synced 2025-10-13 16:46:47 +00:00
277 lines
10 KiB
C++
277 lines
10 KiB
C++
/********************************************************************************
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* Copyright (C) 2014-2019 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH *
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* *
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* This software is distributed under the terms of the *
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* GNU Lesser General Public Licence (LGPL) version 3, *
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* copied verbatim in the file "LICENSE" *
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********************************************************************************/
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#include <algorithm>
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#include <atomic>
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#include <boost/algorithm/string/classification.hpp>
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#include <boost/algorithm/string/predicate.hpp>
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#include <boost/algorithm/string/split.hpp>
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#include <boost/algorithm/string/trim.hpp>
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#include <boost/program_options.hpp>
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#include <condition_variable>
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#include <cstdlib>
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#include <DDS/dds_intercom.h>
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#include <exception>
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#include <iostream>
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#include <unordered_map>
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#include <mutex>
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#include <termios.h> // raw mode console input
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#include <thread>
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#include <string>
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#include <unistd.h>
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using namespace std;
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using namespace dds::intercom_api;
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namespace bpo = boost::program_options;
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struct TerminalConfig
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{
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explicit TerminalConfig()
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{
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termios t;
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tcgetattr(STDIN_FILENO, &t); // get the current terminal I/O structure
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t.c_lflag &= ~ICANON; // disable canonical input
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// t.c_lflag &= ~ECHO; // do not echo input chars
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tcsetattr(STDIN_FILENO, TCSANOW, &t); // apply the new settings
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}
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~TerminalConfig()
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{
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termios t;
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tcgetattr(STDIN_FILENO, &t); // get the current terminal I/O structure
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t.c_lflag |= ICANON; // re-enable canonical input
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// t.c_lflag |= ECHO; // echo input chars
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tcsetattr(STDIN_FILENO, TCSANOW, &t); // apply the new settings
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}
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};
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struct StateSubscription {
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const string& fTopologyPath;
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CCustomCmd& fDdsCustomCmd;
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explicit StateSubscription(const string& topologyPath, CCustomCmd& ddsCustomCmd)
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: fTopologyPath(topologyPath)
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, fDdsCustomCmd(ddsCustomCmd)
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{
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fDdsCustomCmd.send("subscribe-to-state-changes", fTopologyPath);
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}
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~StateSubscription() {
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fDdsCustomCmd.send("unsubscribe-from-state-changes", fTopologyPath);
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this_thread::sleep_for(chrono::milliseconds(100)); // give dds a chance to complete request
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}
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};
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void printControlsHelp()
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{
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cout << "Use keys to control the devices:" << endl;
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cout << "[c] check states, [o] dump config, [h] help, [r] run, [s] stop, [t] reset task, [d] reset device, [q] end, [j] init task, [i] init device, [b] bind, [x] connect" << endl;
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cout << "To quit press Ctrl+C" << endl;
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}
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void commandMode(const string& commandIn, const string& topologyPath, CCustomCmd& ddsCustomCmd) {
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char c;
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string command(commandIn);
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TerminalConfig tconfig;
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if (command == "") {
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printControlsHelp();
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cin >> c;
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command = c;
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}
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while (true) {
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if (command == "c") {
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cout << "> checking state of the devices" << endl;
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ddsCustomCmd.send("check-state", topologyPath);
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} else if (command == "o") {
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cout << "> dumping config of the devices" << endl;
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ddsCustomCmd.send("dump-config", topologyPath);
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} else if (command == "i") {
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cout << "> init devices" << endl;
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ddsCustomCmd.send("INIT DEVICE", topologyPath);
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} else if (command == "b") {
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cout << "> bind devices" << endl;
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ddsCustomCmd.send("BIND", topologyPath);
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} else if (command == "x") {
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cout << "> connect devices" << endl;
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ddsCustomCmd.send("CONNECT", topologyPath);
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} else if (command == "j") {
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cout << "> init tasks" << endl;
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ddsCustomCmd.send("INIT TASK", topologyPath);
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} else if (command == "p") {
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cout << "> pause devices" << endl;
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ddsCustomCmd.send("PAUSE", topologyPath);
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} else if (command == "r") {
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cout << "> run tasks" << endl;
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ddsCustomCmd.send("RUN", topologyPath);
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} else if (command == "s") {
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cout << "> stop devices" << endl;
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ddsCustomCmd.send("STOP", topologyPath);
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} else if (command == "t") {
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cout << "> reset tasks" << endl;
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ddsCustomCmd.send("RESET TASK", topologyPath);
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} else if (command == "d") {
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cout << "> reset devices" << endl;
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ddsCustomCmd.send("RESET DEVICE", topologyPath);
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} else if (command == "h") {
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cout << "> help" << endl;
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printControlsHelp();
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} else if (command == "q") {
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cout << "> end" << endl;
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ddsCustomCmd.send("END", topologyPath);
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} else if (command == "q!") {
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cout << "> shutdown" << endl;
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ddsCustomCmd.send("SHUTDOWN", topologyPath);
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} else if (command == "r!") {
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cout << "> startup" << endl;
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ddsCustomCmd.send("STARTUP", topologyPath);
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} else {
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cout << "\033[01;32mInvalid input: [" << c << "]\033[0m" << endl;
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printControlsHelp();
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}
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if (commandIn != "") {
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this_thread::sleep_for(chrono::milliseconds(100)); // give dds a chance to complete request
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break;
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} else {
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cin >> c;
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command = c;
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}
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}
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}
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struct WaitMode
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{
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explicit WaitMode(const string& targetState)
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: fTargetState(targetState)
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{}
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void Run(const chrono::milliseconds& timeout, const string& topologyPath, CCustomCmd& ddsCustomCmd, const string& command = "")
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{
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StateSubscription stateSubscription(topologyPath, ddsCustomCmd);
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if (command != "") {
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commandMode(command, topologyPath, ddsCustomCmd);
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}
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// TODO once DDS provides an API to retrieve actual number of tasks, use it here
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auto condition = [&] { return !fTargetStates.empty() && all_of(fTargetStates.cbegin(),
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fTargetStates.cend(),
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[&](unordered_map<uint64_t, string>::value_type i) {
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return boost::algorithm::ends_with(i.second, fTargetState);
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});
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};
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unique_lock<mutex> lock(fMtx);
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if (timeout > chrono::milliseconds(0)) {
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if (!fCV.wait_for(lock, timeout, condition)) {
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throw runtime_error("timeout");
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}
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} else {
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fCV.wait(lock, condition);
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}
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}
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void AddNewStateEntry(uint64_t senderId, const string& state)
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{
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{
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unique_lock<mutex> lock(fMtx);
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fTargetStates[senderId] = state;
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}
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fCV.notify_one();
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}
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mutex fMtx;
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condition_variable fCV;
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unordered_map<uint64_t, string> fTargetStates;
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string fTargetState;
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};
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int main(int argc, char* argv[])
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{
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try {
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string sessionID;
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string command;
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string topologyPath;
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string targetState;
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unsigned int timeout;
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bpo::options_description options("Common options");
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auto envSessionId = getenv("DDS_SESSION_ID");
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if (envSessionId) {
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options.add_options()("session,s", bpo::value<string>(&sessionID)->default_value(envSessionId), "DDS Session ID (overrides any value in env var $DDS_SESSION_ID)");
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} else {
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options.add_options()("session,s", bpo::value<string>(&sessionID)->required(), "DDS Session ID (overrides any value in env var $DDS_SESSION_ID)");
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}
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options.add_options()
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("command,c", bpo::value<string> (&command)->default_value(""), "Command character")
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("path,p", bpo::value<string> (&topologyPath)->default_value(""), "DDS Topology path to send command to (empty - send to all tasks)")
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("wait-for-state,w", bpo::value<string> (&targetState)->default_value(""), "Wait until targeted FairMQ devices reach the given state")
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("timeout,t", bpo::value<unsigned int> (&timeout)->default_value(0), "Timeout in milliseconds when waiting for a device state (0 - wait infinitely)")
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("help,h", "Produce help message");
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bpo::variables_map vm;
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bpo::store(bpo::command_line_parser(argc, argv).options(options).run(), vm);
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if (vm.count("help")) {
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cout << "FairMQ DDS Command UI" << endl << options << endl;
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cout << "Commands: [c] check state, [o] dump config, [h] help, [r] run, [s] stop, [t] reset task, [d] reset device, [q] end, [j] init task, [i] init device" << endl;
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return EXIT_SUCCESS;
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}
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bpo::notify(vm);
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WaitMode waitMode(targetState);
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CIntercomService service;
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CCustomCmd ddsCustomCmd(service);
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service.subscribeOnError([](const EErrorCode errorCode, const string& errorMsg) {
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cerr << "DDS error received: error code: " << errorCode << ", error message: " << errorMsg << endl;
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});
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// subscribe to receive messages from DDS
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ddsCustomCmd.subscribe([&](const string& msg, const string& /*condition*/, uint64_t senderId) {
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cerr << "Received: " << msg << endl;
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vector<string> parts;
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boost::algorithm::split(parts, msg, boost::algorithm::is_any_of(":,"));
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if (parts[0] == "state-change") {
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boost::trim(parts[2]);
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waitMode.AddNewStateEntry(senderId, parts[2]);
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} else if (parts[0] == "state-changes-subscription") {
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if (parts[2] != "OK") {
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cerr << "state-changes-subscription failed with return code: " << parts[2];
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}
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} else if (parts[0] == "state-changes-unsubscription") {
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if (parts[2] != "OK") {
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cerr << "state-changes-unsubscription failed with return code: " << parts[2];
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}
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} else {
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// cout << "Received: " << msg << endl;
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}
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});
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service.start(sessionID);
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if (targetState == "") {
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commandMode(command, topologyPath, ddsCustomCmd);
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} else {
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waitMode.Run(chrono::milliseconds(timeout), topologyPath, ddsCustomCmd, command);
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}
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} catch (exception& e) {
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cerr << "Error: " << e.what() << endl;
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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}
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