--- /dev/null
+/* $Id$
+
+This file is part of R²C²
+Copyright © 2010 Mikkosoft Productions, Mikko Rasa
+Distributed under the GPL
+*/
+
+#include <algorithm>
+#include <msp/core/refptr.h>
+#include <msp/io/print.h>
+#include <msp/net/resolve.h>
+#include <msp/strings/utils.h>
+#include <msp/time/units.h>
+#include <msp/time/utils.h>
+#include "centralstation.h"
+#include "tracktype.h"
+#include "vehicletype.h"
+
+using namespace std;
+using namespace Msp;
+
+namespace R2C2 {
+
+CentralStation::CentralStation(const string &host):
+ socket(Net::INET),
+ pending_commands(0),
+ power(false),
+ halted(false),
+ locos_synced(false),
+ turnouts_synced(false),
+ sensors_synced(false)
+{
+ RefPtr<Net::SockAddr> addr = Net::resolve(host+":15471");
+ socket.connect(*addr);
+
+ IO::print("Connected to central station at %s\n", addr->str());
+
+ command("get(1, status)");
+ command("request(1, view)");
+ command("queryObjects(10, addr, name)");
+ command("queryObjects(11, addr)");
+ command("queryObjects(26)");
+}
+
+CentralStation::~CentralStation()
+{
+ command("release(1, view)", true);
+ for(LocoMap::iterator i=locos.begin(); (i!=locos.end() && !(i->first&0x10000)); ++i)
+ command(format("release(%d, view, control)", i->first));
+ for(TurnoutMap::iterator i=turnouts.begin(); (i!=turnouts.end() && !(i->first&0x10000)); ++i)
+ command(format("release(%d, view, control)", i->first));
+ while(IO::poll(socket, IO::P_INPUT, 100*Time::msec))
+ while(receive()) ;
+}
+
+void CentralStation::set_power(bool p)
+{
+ power = p;
+ command(format("set(1, %s)", (power ? "go" : "stop")));
+}
+
+void CentralStation::halt(bool h)
+{
+ halted = h;
+ if(halted)
+ {
+ for(LocoMap::iterator i=locos.begin(); i!=locos.end(); ++i)
+ if(i->second.speed)
+ set_loco_speed(i->first, 0);
+ }
+
+ signal_halt.emit(halted);
+}
+
+const char *CentralStation::enumerate_protocols(unsigned index) const
+{
+ if(index==MM)
+ return "MM";
+ else if(index==MM_27)
+ return "MM-27";
+ else if(index==MFX)
+ return "MFX";
+ else
+ return 0;
+}
+
+unsigned CentralStation::get_protocol_speed_steps(const string &name) const
+{
+ switch(map_protocol(name))
+ {
+ case MM: return 14;
+ case MM_27: return 27;
+ case MFX: return 127;
+ default: return 0;
+ }
+}
+
+void CentralStation::add_loco(unsigned addr, const string &proto_name, const VehicleType &type)
+{
+ Protocol proto = map_protocol(proto_name);
+
+ unsigned id = map_address(locos, loco_addr, addr);
+ if(!id)
+ {
+ Locomotive &loco = locos[addr|0x10000];
+ loco.name = type.get_name();
+ loco.protocol = proto;
+ loco.address = addr;
+
+ if(locos_synced && proto!=MFX)
+ command("create(10)");
+ }
+ else
+ command(format("request(%d, view, control, force)", id));
+}
+
+void CentralStation::set_loco_speed(unsigned addr, unsigned speed)
+{
+ if(speed && halted)
+ return;
+
+ unsigned id = map_address(locos, loco_addr, addr);
+ if(id)
+ command(format("set(%d, speedstep[%d])", id, speed));
+}
+
+void CentralStation::set_loco_reverse(unsigned addr, bool rev)
+{
+ unsigned id = map_address(locos, loco_addr, addr);
+ if(id)
+ command(format("set(%d, dir[%d])", id, rev));
+}
+
+void CentralStation::set_loco_function(unsigned addr, unsigned func, bool state)
+{
+ unsigned id = map_address(locos, loco_addr, addr);
+ if(id)
+ command(format("set(%d, func[%d, %d])", id, func, state));
+}
+
+void CentralStation::add_turnout(unsigned addr, const TrackType &type)
+{
+ bool left = false;
+ bool right = false;
+ bool cross = false;
+
+ const vector<TrackPart> &parts = type.get_parts();
+ for(vector<TrackPart>::const_iterator i=parts.begin(); i!=parts.end(); ++i)
+ {
+ TrackPoint start = i->get_point(0);
+ TrackPoint end = i->get_point(i->get_length());
+ if(end.dir>start.dir+0.01)
+ left = true;
+ else if(end.dir<start.dir-0.01)
+ right = true;
+ else if(start.dir<-0.01 || start.dir>0.01)
+ cross = true;
+ }
+
+ unsigned symbol;
+ if(cross)
+ symbol = Turnout::DOUBLESLIP;
+ else if(left && right)
+ symbol = Turnout::THREEWAY;
+ else if(left)
+ symbol = Turnout::LEFT;
+ else if(right)
+ symbol = Turnout::RIGHT;
+
+ unsigned id = map_address(turnouts, turnout_addr, addr);
+ if(!id)
+ {
+ id = addr|0x10000;
+
+ Turnout &turnout = turnouts[id];
+ turnout.address = addr;
+ turnout.bits = type.get_state_bits();
+ turnout.symbol = symbol;
+
+ turnout_addr[addr] = id;
+
+ if(turnouts_synced)
+ command("create(11, append)");
+ }
+ else
+ {
+ Turnout &turnout = turnouts[id];
+ command(format("request(%d, view, control)", id));
+ if(turnout.symbol!=symbol)
+ command(format("set(%d, symbol[%d])", symbol));
+ }
+}
+
+void CentralStation::set_turnout(unsigned addr, unsigned state)
+{
+ unsigned id = map_address(turnouts, turnout_addr, addr);
+ if(id)
+ {
+ Turnout &turnout = turnouts[id];
+ unsigned mask = (1<<turnout.bits)-1;
+
+ if(((state^turnout.state)&mask)==0 || !turnout.synced)
+ {
+ turnout.state = state;
+ signal_turnout.emit(addr, turnout.state);
+ return;
+ }
+
+ turnout.state = (turnout.state&mask) | (state&~mask);
+
+ command(format("set(%d, state[%d])", id, state&mask));
+ }
+}
+
+unsigned CentralStation::get_turnout(unsigned addr) const
+{
+ unsigned id = map_address(turnouts, turnout_addr, addr);
+ if(id)
+ {
+ TurnoutMap::const_iterator i = turnouts.find(id);
+ if(i!=turnouts.end())
+ return i->second.state;
+ }
+ return 0;
+}
+
+void CentralStation::add_sensor(unsigned addr)
+{
+ sensors.insert(SensorMap::value_type(addr, Sensor()));
+
+ if(sensors_synced)
+ {
+ if(addr>s88.size()*16)
+ command("create(26, add[0])");
+ }
+}
+
+bool CentralStation::get_sensor(unsigned addr) const
+{
+ SensorMap::const_iterator i = sensors.find(addr);
+ if(i!=sensors.end())
+ return i->second.state;
+ return false;
+}
+
+void CentralStation::tick()
+{
+ Time::TimeStamp t = Time::now();
+ for(SensorMap::iterator i=sensors.begin(); i!=sensors.end(); ++i)
+ if(i->second.off_timeout && t>i->second.off_timeout)
+ {
+ i->second.state = false;
+ i->second.off_timeout = Time::TimeStamp();
+ signal_sensor.emit(i->first, i->second.state);
+ }
+
+ while(Message msg = receive())
+ {
+ if(msg.footer.code)
+ IO::print("\033[31m*** ERROR: %s: %d %s ***\033[0m\n", msg.header.value, msg.footer.code, msg.footer.value);
+
+ if(msg.header.type=="REPLY")
+ process_reply(msg);
+ else if(msg.header.type=="EVENT")
+ process_event(msg);
+ }
+}
+
+void CentralStation::flush()
+{
+}
+
+void CentralStation::command(const string &cmd, bool force)
+{
+ if(pending_commands<10 || force)
+ {
+ socket.write(cmd+"\r\n");
+ ++pending_commands;
+ }
+ else
+ cmd_queue.push_back(cmd);
+}
+
+CentralStation::Message CentralStation::receive()
+{
+ while(IO::poll(socket, IO::P_INPUT, Time::zero))
+ {
+ char rbuf[1024];
+ unsigned len = socket.read(rbuf, sizeof(rbuf));
+ if(!len)
+ return Message();
+
+ in_buffer.append(rbuf, len);
+ }
+
+ if(!in_buffer.empty())
+ {
+ string::iterator iter = in_buffer.begin();
+ if(Message msg = parse_message(iter, in_buffer.end()))
+ {
+ skip(iter, in_buffer.end(), "\r\n");
+ in_buffer.erase(in_buffer.begin(), iter);
+
+ if(msg.header.type=="REPLY" && pending_commands>0)
+ {
+ --pending_commands;
+ if(!cmd_queue.empty())
+ {
+ command(cmd_queue.front());
+ cmd_queue.pop_front();
+ }
+ }
+
+ return msg;
+ }
+ }
+
+ return Message();
+}
+
+void CentralStation::process_reply(const Message &msg)
+{
+ if(!msg.header.value.compare(0, 4, "get("))
+ {
+ for(Message::ObjectMap::const_iterator i=msg.content.begin(); i!=msg.content.end(); ++i)
+ {
+ if(turnouts.count(i->first))
+ turnouts[i->first].synced = true;
+
+ process_object(i->first, i->second);
+ }
+ }
+ else if(!msg.header.value.compare(0, 16, "queryObjects(10,"))
+ {
+ for(Message::ObjectMap::const_iterator i=msg.content.begin(); i!=msg.content.end(); ++i)
+ {
+ LocoMap::iterator j = locos.find(i->first);
+ if(j==locos.end())
+ {
+ bool found = false;
+ Message::AttribMap::const_iterator k = i->second.find("addr");
+ if(k!=i->second.end())
+ {
+ unsigned addr = lexical_cast<unsigned>(k->second);
+
+ j = locos.find(addr|0x10000);
+ if(j!=locos.end())
+ {
+ command(format("request(%d, view, control, force)", i->first));
+ command(format("get(%d, dir, func[0])", i->first));
+
+ locos.insert(LocoMap::value_type(i->first, j->second));
+ locos.erase(j);
+
+ found = true;
+ }
+ }
+
+ if(!found)
+ locos.insert(LocoMap::value_type(i->first, Locomotive()));
+ }
+
+ process_object(i->first, i->second);
+ }
+
+ locos_synced = true;
+
+ if(locos.lower_bound(0x10000)!=locos.end())
+ command("create(10)");
+ }
+ else if(!msg.header.value.compare(0, 16, "queryObjects(11,"))
+ {
+ for(Message::ObjectMap::const_iterator i=msg.content.begin(); i!=msg.content.end(); ++i)
+ {
+ TurnoutMap::iterator j = turnouts.find(i->first);
+ if(j==turnouts.end())
+ {
+ bool found = false;
+ Message::AttribMap::const_iterator k = i->second.find("addr");
+ if(k!=i->second.end())
+ {
+ unsigned addr = lexical_cast<unsigned>(k->second);
+
+ j = turnouts.find(addr|0x10000);
+ if(j!=turnouts.end())
+ {
+ command(format("request(%d, view, control)", i->first));
+ command(format("set(%d, symbol[%d])", i->first, j->second.symbol));
+ command(format("get(%d, state)", i->first));
+
+ turnouts.insert(TurnoutMap::value_type(i->first, j->second));
+ turnouts.erase(j);
+
+ found = true;
+ }
+ }
+
+ if(!found)
+ turnouts.insert(TurnoutMap::value_type(i->first, Turnout()));
+ }
+
+ process_object(i->first, i->second);
+ }
+
+ turnouts_synced = true;
+
+ for(TurnoutMap::const_iterator i=turnouts.lower_bound(0x10000); i!=turnouts.end(); ++i)
+ command("create(11, append)");
+ }
+ else if(msg.header.value=="queryObjects(26)")
+ {
+ s88.clear();
+ for(Message::ObjectMap::const_iterator i=msg.content.begin(); i!=msg.content.end(); ++i)
+ {
+ s88.push_back(i->first);
+ command(format("request(%d, view)", i->first));
+ }
+
+ sensors_synced = true;
+
+ if(!sensors.empty())
+ {
+ unsigned high_addr = (--sensors.end())->first;
+ if(high_addr>16*s88.size())
+ command("create(26, add[0])");
+ }
+ }
+ else if(msg.header.value=="create(10)")
+ {
+ Message::ObjectMap::const_iterator i = msg.content.find(10);
+ if(i!=msg.content.end())
+ {
+ Message::AttribMap::const_iterator j = i->second.find("id");
+ if(j!=i->second.end())
+ {
+ unsigned id = lexical_cast<unsigned>(j->second);
+ LocoMap::iterator k = locos.lower_bound(0x10000);
+ if(k!=locos.end())
+ {
+ command(format("request(%d, view, control)", id));
+ command(format("set(%d, addr[%d], protocol[%s], name[\"%s\"])",
+ id, k->second.address, (k->second.protocol==MM_27 ? "MM27" : "MM14"), k->second.name));
+ command("create(10, append)");
+
+ locos.insert(LocoMap::value_type(id, k->second));
+ locos.erase(k);
+ }
+ }
+ }
+
+ if(locos.lower_bound(0x10000)!=locos.end())
+ command("create(10)");
+ }
+ else if(!msg.header.value.compare(0, 10, "create(11,"))
+ {
+ Message::ObjectMap::const_iterator i = msg.content.find(11);
+ if(i!=msg.content.end())
+ {
+ Message::AttribMap::const_iterator j = i->second.find("id");
+ if(j!=i->second.end())
+ {
+ unsigned id = lexical_cast<unsigned>(j->second);
+ TurnoutMap::iterator k = turnouts.lower_bound(0x10000);
+ if(k!=turnouts.end())
+ {
+ command(format("request(%d, view, control)", id));
+ command(format("set(%d, addr[%d], symbol[%d], name1[\"Switch\"], name2[\"%d\"], name3[\"\"])",
+ id, k->second.address, k->second.symbol, k->second.address));
+ command(format("set(%d, state[%d])", id, k->second.state&((1<<k->second.bits)-1)));
+
+ k->second.synced = true;
+ turnouts.insert(TurnoutMap::value_type(id, k->second));
+ turnouts.erase(k);
+ }
+ }
+ }
+ }
+ else if(!msg.header.value.compare(0, 10, "create(26,"))
+ command("queryObjects(26)");
+}
+
+void CentralStation::process_event(const Message &msg)
+{
+ for(Message::ObjectMap::const_iterator i=msg.content.begin(); i!=msg.content.end(); ++i)
+ process_object(i->first, i->second);
+}
+
+void CentralStation::process_object(unsigned id, const Message::AttribMap &attribs)
+{
+ if(id==1)
+ {
+ for(Message::AttribMap::const_iterator i=attribs.begin(); i!=attribs.end(); ++i)
+ if(i->first=="status")
+ {
+ power = (i->second=="GO");
+ signal_power.emit(power);
+ }
+ }
+ else if(locos.count(id))
+ {
+ Locomotive &loco = locos[id];
+ bool speed_changed = false;
+ unsigned funcs_changed = 0;
+ for(Message::AttribMap::const_iterator i=attribs.begin(); i!=attribs.end(); ++i)
+ {
+ if(i->first=="name")
+ loco.name = i->second.substr(1, i->second.size()-2);
+ else if(i->first=="addr")
+ {
+ loco_addr.erase(loco.address);
+ loco.address = lexical_cast<unsigned>(i->second);
+ loco_addr[loco.address] = id;
+ }
+ else if(i->first=="protocol")
+ {
+ if(i->second=="MM")
+ loco.protocol = MM;
+ else if(i->second=="MM27")
+ loco.protocol = MM_27;
+ else if(i->second=="MFX")
+ loco.protocol = MFX;
+ }
+ else if(i->first=="speedstep")
+ {
+ loco.speed = lexical_cast<unsigned>(i->second);
+ speed_changed = true;
+ }
+ else if(i->first=="dir")
+ {
+ loco.reverse = i->second[0]!='0';
+ speed_changed = true;
+ }
+ else if(i->first=="func")
+ {
+ vector<string> parts = split(i->second, ", ");
+ unsigned func = lexical_cast<unsigned>(parts[0]);
+ bool value = lexical_cast<unsigned>(parts[1]);
+ loco.funcs &= ~(1<<func);
+ if(value)
+ loco.funcs |= 1<<func;
+ funcs_changed |= 1<<func;
+ }
+ else if(i->first=="msg")
+ {
+ if(i->second=="CONTROL_LOST")
+ command(format("request(%d, control, force)", id));
+ }
+ }
+
+ if(speed_changed)
+ signal_loco_speed.emit(loco.address, loco.speed, loco.reverse);
+ for(unsigned i=0; funcs_changed>>i; ++i)
+ if(funcs_changed&(1<<i))
+ signal_loco_function.emit(loco.address, i, loco.funcs&(1<<i));
+ }
+ else if(turnouts.count(id))
+ {
+ Turnout &turnout = turnouts[id];
+ bool state_changed = false;
+ for(Message::AttribMap::const_iterator i=attribs.begin(); i!=attribs.end(); ++i)
+ {
+ if(i->first=="addr")
+ {
+ turnout_addr.erase(turnout.address);
+ turnout.address = lexical_cast<unsigned>(i->second);
+ turnout_addr[turnout.address] = id;
+ }
+ else if(i->first=="state")
+ {
+ unsigned state = lexical_cast<unsigned>(i->second);
+ unsigned mask = (1<<turnout.bits)-1;
+ turnout.state = (turnout.state&~mask) | (state&mask);
+ state_changed = true;
+ }
+ }
+
+ if(state_changed)
+ signal_turnout.emit(turnout.address, turnout.state);
+ }
+ else if(find(s88.begin(), s88.end(), id)!=s88.end())
+ {
+ unsigned base = 0;
+ for(; (base<s88.size() && s88[base]!=id); ++base) ;
+
+ for(Message::AttribMap::const_iterator i=attribs.begin(); i!=attribs.end(); ++i)
+ {
+ if(i->first=="state")
+ {
+ unsigned state = lexical_cast<unsigned>(i->second, "%i");
+ for(unsigned j=0; j<16; ++j)
+ {
+ unsigned addr = base*16+j+1;
+ Sensor &sensor = sensors[addr];
+ bool s = state&(1<<j);
+ if(s)
+ {
+ sensor.off_timeout = Time::TimeStamp();
+ if(!sensor.state)
+ {
+ sensor.state = true;
+ signal_sensor.emit(addr, sensor.state);
+ }
+ }
+ else if(sensor.state)
+ sensor.off_timeout = Time::now()+700*Time::msec;
+ }
+ }
+ }
+ }
+}
+
+CentralStation::Protocol CentralStation::map_protocol(const string &name) const
+{
+ if(name=="MM")
+ return MM;
+ else if(name=="MM-27")
+ return MM_27;
+ else if(name=="MFX")
+ return MFX;
+ else
+ throw InvalidParameterValue("Unknown protocol");
+}
+
+template<typename T>
+unsigned CentralStation::map_address(const map<unsigned, T> &omap, const AddressMap &amap, unsigned addr) const
+{
+ if(omap.count(addr))
+ return addr;
+ else
+ {
+ AddressMap::const_iterator i = amap.find(addr);
+ if(i!=amap.end())
+ return i->second;
+ else
+ return 0;
+ }
+}
+
+void CentralStation::skip(string::iterator &iter, const string::iterator &end, const string &what) const
+{
+ for(; (iter!=end && what.find(*iter)!=string::npos); ++iter) ;
+}
+
+string CentralStation::parse_token(string::iterator &iter, const string::iterator &end, const string &stop) const
+{
+ vector<char> parens;
+ bool quote = false;
+ string token;
+
+ skip(iter, end, stop);
+
+ for(; iter!=end; ++iter)
+ {
+ if(stop.find(*iter)!=string::npos && parens.empty() && !quote)
+ break;
+ else if(*iter=='(' || *iter=='[')
+ parens.push_back(*iter);
+ else if((*iter==')' || *iter==']') && !parens.empty())
+ {
+ if((*iter==')' && parens.back()!='(') || (*iter==']' && parens.back()!='['))
+ IO::print("Mismatched parentheses\n");
+ parens.pop_back();
+ }
+ else if(*iter=='"')
+ quote = !quote;
+
+ token += *iter;
+ }
+
+ return token;
+}
+
+CentralStation::Tag CentralStation::parse_tag(string::iterator &iter, const string::iterator &end) const
+{
+ Tag tag;
+
+ for(; (iter!=end && *iter!='<'); ++iter) ;
+ if(iter==end)
+ return Tag();
+
+ tag.type = parse_token(++iter, end, " >");
+ if(tag.type=="END")
+ {
+ string code = parse_token(iter, end, " >");
+ tag.code = lexical_cast<unsigned>(code);
+ }
+ skip(iter, end, " ");
+ tag.value = parse_token(iter, end, ">");
+ if(iter==end)
+ return Tag();
+ ++iter;
+
+ return tag;
+}
+
+CentralStation::Message CentralStation::parse_message(string::iterator &iter, const string::iterator &end) const
+{
+ Message msg;
+
+ msg.header = parse_tag(iter, end);
+
+ while(iter!=end)
+ {
+ skip(iter, end, "\r\n");
+ if(*iter=='<')
+ break;
+
+ string id = parse_token(iter, end, " \r\n<");
+ Message::AttribMap &attribs = msg.content[lexical_cast<unsigned>(id)];
+ while(iter!=end && *iter!='\n' && *iter!='\r')
+ {
+ string attr = parse_token(iter, end, " \r\n<");
+ string::size_type open_bracket = attr.find('[');
+ if(open_bracket!=string::npos)
+ {
+ string::size_type close_bracket = attr.rfind(']');
+ attribs[attr.substr(0, open_bracket)] = attr.substr(open_bracket+1, close_bracket-open_bracket-1);
+ }
+ else
+ attribs[attr];
+ }
+ }
+
+ msg.footer = parse_tag(iter, end);
+ if(msg.footer.type.empty())
+ return Message();
+
+ return msg;
+}
+
+
+CentralStation::Tag::Tag():
+ code(0)
+{ }
+
+CentralStation::Tag::operator bool() const
+{
+ return !type.empty();
+}
+
+
+CentralStation::Message::operator bool() const
+{
+ return header && footer;
+}
+
+
+CentralStation::Locomotive::Locomotive():
+ address(0),
+ speed(0),
+ reverse(false),
+ funcs(0),
+ control(false)
+{ }
+
+
+CentralStation::Turnout::Turnout():
+ address(0),
+ symbol(0),
+ state(0),
+ bits(0),
+ synced(false)
+{ }
+
+
+CentralStation::Sensor::Sensor():
+ state(false)
+{ }
+
+} // namespace R2C2
projects / r2c2.git / commitdiff