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ebusd/src/baseloop.cpp
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/*
* Copyright (C) Roland Jax 2012-2014 <roland.jax@liwest.at>
*
* This file is part of ebusd.
*
* ebusd 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.
*
* ebusd 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 ebusd. If not, see http://www.gnu.org/licenses/.
*/
#include "baseloop.h"
#include "logger.h"
#include "appl.h"
extern LogInstance& L;
extern Appl& A;
BaseLoop::BaseLoop()
{
// create Commands DB
m_commands = ConfigCommands(A.getParam<const char*>("p_ebusconfdir"), CSV).getCommands();
L.log(bas, debug, "ebus configuration dir: %s", A.getParam<const char*>("p_ebusconfdir"));
L.log(bas, event, "commands DB with %d entries created", m_commands->size());
// create EBusLoop
m_ebusloop = new EBusLoop();
m_ebusloop->start("ebusloop");
// create CYCData
m_cycdata = new CYCData(m_ebusloop, m_commands);
m_cycdata->start("cycdata");
// create Network
m_network = new Network(A.getParam<bool>("p_localhost"));
m_network->addQueue(&m_queue);
m_network->start("network");
}
BaseLoop::~BaseLoop()
{
// free Network
if (m_network != NULL)
delete m_network;
// free CYCData
if (m_cycdata != NULL) {
m_cycdata->stop();
delete m_cycdata;
}
// free EBusLoop
if (m_ebusloop != NULL) {
m_ebusloop->stop();
m_ebusloop->join();
delete m_ebusloop;
}
// free Commands DB
if (m_commands != NULL)
delete m_commands;
}
void BaseLoop::start()
{
for (;;) {
std::string result;
// recv new message from client
Message* message = m_queue.remove();
std::string data = message->getData();
data.erase(std::remove(data.begin(), data.end(), '\r'), data.end());
data.erase(std::remove(data.begin(), data.end(), '\n'), data.end());
L.log(bas, event, ">>> %s", data.c_str());
// decode message
if (strcasecmp(data.c_str(), "stop") != 0)
result = decodeMessage(data);
else
result = "done";
L.log(bas, event, "<<< %s", result.c_str());
// send result to client
result += '\n';
Connection* connection = static_cast<Connection*>(message->getSource());
connection->addResult(Message(result));
delete message;
// stop daemon
if (strcasecmp(data.c_str(), "stop") == 0)
return;
}
}
std::string BaseLoop::decodeMessage(const std::string& data)
{
std::ostringstream result;
std::string cycdata;
int index;
// prepare data
std::string token;
std::istringstream stream(data);
std::vector<std::string> cmd;
while (std::getline(stream, token, ' ') != 0)
cmd.push_back(token);
if (cmd.size() == 0)
return "command missing";
switch (getCase(cmd[0])) {
case notfound:
result << "command not found";
break;
case get:
if (cmd.size() < 3 || cmd.size() > 4) {
result << "usage: 'get class cmd (sub)'";
break;
}
index = m_commands->findCommand(data);
if (index >= 0) {
std::string type = m_commands->getType(index);
std::string ebusCommand(A.getParam<const char*>("p_address"));
ebusCommand += m_commands->getEbusCommand(index);
std::transform(ebusCommand.begin(), ebusCommand.end(), ebusCommand.begin(), tolower);
L.log(bas, trace, " type: %s msg: %s", type.c_str(), ebusCommand.c_str());
// send busCommand
m_ebusloop->addBusCommand(new BusCommand(type, ebusCommand));
BusCommand* busCommand = m_ebusloop->getBusCommand();
if (busCommand->getResult().c_str()[0] != '-') {
// decode data
Command* command = new Command(index, (*m_commands)[index], busCommand->getResult());
// return result
result << command->calcResult(cmd);
delete command;
} else {
L.log(bas, error, " %s", busCommand->getResult().c_str());
result << busCommand->getResult();
}
delete busCommand;
} else {
result << "ebus command not found";
}
break;
case set:
if (cmd.size() != 4) {
result << "usage: 'set class cmd value'";
break;
}
index = m_commands->findCommand(data.substr(0, data.find(cmd[3])-1));
if (index >= 0) {
std::string type = m_commands->getType(index);
std::string ebusCommand(A.getParam<const char*>("p_address"));
ebusCommand += m_commands->getEbusCommand(index);
// encode data
Command* command = new Command(index, (*m_commands)[index], cmd[3]);
std::string value = command->calcData();
if (value[0] != '-') {
ebusCommand += value;
} else {
L.log(bas, error, " %s", value.c_str());
delete command;
break;
}
std::transform(ebusCommand.begin(), ebusCommand.end(), ebusCommand.begin(), tolower);
L.log(bas, event, " type: %s msg: %s", type.c_str(), ebusCommand.c_str());
// send busCommand
m_ebusloop->addBusCommand(new BusCommand(type, ebusCommand));
BusCommand* busCommand = m_ebusloop->getBusCommand();
if (busCommand->getResult().c_str()[0] != '-') {
// decode result
if (strcasecmp(type.c_str(), "BC") == 0)
result << "done";
else if (busCommand->getResult().substr(busCommand->getResult().length()-8) == "00000000")
result << "done";
else
result << "error";
} else {
L.log(bas, error, " %s", busCommand->getResult().c_str());
result << busCommand->getResult();
}
delete busCommand;
delete command;
} else {
result << "ebus command not found";
}
break;
case cyc:
if (cmd.size() < 3 || cmd.size() > 4) {
result << "usage: 'cyc class cmd (sub)'";
break;
}
index = m_commands->findCommand(data);
if (index >= 0) {
// get cycdata
cycdata = m_cycdata->getData(index);
if (cycdata != "") {
// decode data
Command* command = new Command(index, (*m_commands)[index], cycdata);
// return result
result << command->calcResult(cmd);
delete command;
} else {
result << "no data stored";
}
} else {
result << "ebus command not found";
}
break;
case hex:
if (cmd.size() != 3) {
result << "usage: 'hex type value' (value: ZZPBSBNNDx)";
break;
}
if ((strcasecmp(cmd[1].c_str(), "MS") == 0)
|| (strcasecmp(cmd[1].c_str(), "MM") == 0)
|| (strcasecmp(cmd[1].c_str(), "BC") == 0)) {
std::string type = cmd[1];
std::string ebusCommand(A.getParam<const char*>("p_address"));
cmd[2].erase(std::remove_if(cmd[2].begin(), cmd[2].end(), isspace), cmd[2].end());
ebusCommand += cmd[2];
std::transform(ebusCommand.begin(), ebusCommand.end(), ebusCommand.begin(), tolower);
L.log(bas, trace, " type: %s msg: %s", type.c_str(), ebusCommand.c_str());
// send busCommand
m_ebusloop->addBusCommand(new BusCommand(type, ebusCommand));
BusCommand* busCommand = m_ebusloop->getBusCommand();
if (busCommand->getResult().c_str()[0] == '-')
L.log(bas, error, " %s", busCommand->getResult().c_str());
result << busCommand->getResult();
delete busCommand;
} else {
result << "specified message type is incorrect";
}
break;
case dump:
if (cmd.size() != 2) {
result << "usage: 'dump state' (state: on|off)";
break;
}
if (strcasecmp(cmd[1].c_str(), "on") == 0) m_ebusloop->dump(true);
if (strcasecmp(cmd[1].c_str(), "off") == 0) m_ebusloop->dump(false);
result << "done";
break;
case log:
if (cmd.size () != 3 ) {
result << "usage: 'log areas area,area,..' (areas: bas|net|bus|cyc|all)" << std::endl
<< " 'log level level' (level: error|event|trace|debug)";
break;
}
// ToDo: check for possible areas
if (strcasecmp(cmd[1].c_str(), "areas") == 0) {
L.getSink(0)->setAreas(calcArea(cmd[2]));
result << "done";
break;
}
if (strcasecmp(cmd[1].c_str(), "level") == 0) {
L.getSink(0)->setLevel(calcLevel(cmd[2]));
result << "done";
break;
}
break;
//~ case cfgreload:
// free CYCData
//~ if (m_cycdata != NULL) {
//~ m_cycdata->stop();
//~ delete m_cycdata;
//~ }
// free EBusLoop
//~ if (m_ebusloop != NULL) {
//~ m_ebusloop->stop();
//~ m_ebusloop->join();
//~ delete m_ebusloop;
//~ }
// free Commands DB
//~ if (m_commands != NULL)
//~ delete m_commands;
// create Commands DB
//~ m_commands = ConfigCommands(A.getParam<const char*>("p_ebusconfdir"), CSV).getCommands();
//~ L.log(bas, debug, "ebus configuration dir: %s", A.getParam<const char*>("p_ebusconfdir"));
//~ L.log(bas, event, "commands DB with %d entries created", m_commands->size());
// create EBusLoop
//~ m_ebusloop = new EBusLoop();
//~ m_ebusloop->start("ebusloop");
// create CYCData
//~ m_cycdata = new CYCData(m_ebusloop, m_commands);
//~ m_cycdata->start("cycdata");
//~ result << "done";
//~ break;
case help:
result << "commands:" << std::endl
<< " get - fetch ebus data 'get class cmd (sub)'" << std::endl
<< " set - set ebus values 'set class cmd value'" << std::endl
<< " cyc - fetch cycle data 'cyc class cmd (sub)'" << std::endl
<< " hex - send given hex value 'hex type value' (value: ZZPBSBNNDx)" << std::endl << std::endl
<< " dump - change dump state 'dump state' (state: on|off)" << std::endl << std::endl
<< " log areas - change log areas 'log areas area,area,..' (areas: bas|net|bus|cyc|all)" << std::endl
<< " log level - change log level 'log level level' (level: error|event|trace|debug)" << std::endl << std::endl
//~ << " cfgreload - reload ebus configuration" << std::endl << std::endl
<< " stop - stop daemon" << std::endl
<< " quit - close connection" << std::endl << std::endl
<< " help - print this page";
break;
default:
break;
}
return result.str();
}