Modelbahn/server/locomotive.cc

#include "modelbahn.h"
#include "locomotive.h"


Locomotives::Locomotives () {
	changed = 0;
	locomotives = (Locomotive*) malloc(sizeof(Locomotive)*LOCOMOTIVES_MAX);
	memset(locomotives, 0x0, sizeof(Locomotive)*LOCOMOTIVES_MAX);
	max = SENSORS_MAX;
};

Locomotives::~Locomotives() {
	free (locomotives);
	locomotives = NULL;
	max = 0;
};


int Locomotives::Lock() {
	if (pthread_mutex_lock(&mtx) == 0) return 1;
	else return 0;
}


int Locomotives::UnLock() {
	if (pthread_mutex_unlock(&mtx) == 0) return 1;
	else return 0;
}


JSONParse Locomotives::_GetJSON(int idx) {
	JSONParse json;
	JSONElement je;
	string s = "";

	json.Clear();

	s = locomotives[idx].name; json.AddObject("name", s);
	s = locomotives[idx].ifname; json.AddObject("ifname", s);
	json.AddObject("addr", locomotives[idx].addr);
	json.AddObject("steps", locomotives[idx].steps);
	json.AddObject("speed", locomotives[idx].speed);
	json.AddObject("func", locomotives[idx].func);
	json.AddObject("flags", locomotives[idx].flags);
	json.AddObject("vmin", locomotives[idx].vmin);
	json.AddObject("vslow", locomotives[idx].vslow);
	json.AddObject("vmid", locomotives[idx].vmid);
	json.AddObject("vfast", locomotives[idx].vfast);
	json.AddObject("vmax", locomotives[idx].vmax);

	return json;
};


JSONParse Locomotives::GetJSON(string name) {
	int i;
	JSONParse jp;

	jp.Clear();

	Lock();
	for (i = 0; i < max; i++) if (locomotives[i].name[0] != 0) {
		if (name.compare(locomotives[i].name) == 0) {
			jp = _GetJSON(i);
		}
	}

	UnLock();

	return jp;
};


void Locomotives::GetJSONAll(JSONParse *json) {
	int i, cnt;
	JSONElement je;

	Lock();

	//
	// write all railway data
	// create json object array manualy
	je.type = JSON_T_ARRAY;
	je.name = "locomotives";
	for (cnt = 0, i = 0; i < max; i++)
		if (locomotives[i].name[0] != 0) {
			if (cnt != 0) je.value += ",";			// not first element
			je.value += _GetJSON(i).ToString();
			cnt++;
		}
	json->AddObject(je);

	UnLock();
};


Locomotive Locomotives::GetLocomotiveFromJSON(JSONParse *j) {
	Locomotive l;
	string s;

	l.name[0] = 0;
	l.ifname[0] = 0;
	l.addr = 0;
	l.steps = 0;
	l.vmin = 0;
	l.vslow = 0;
	l.vmid = 0;
	l.vfast = 0;
	l.vmax = 0;
	l.flags = 0;
	l.speed = 0;
	l.func = 0;

	j->GetValue("name", &s);
	strncpy (l.name, s.c_str(), REFERENCENAME_LEN);
	j->GetValue("ifname", &s);
	strncpy (l.ifname, s.c_str(), REFERENCENAME_LEN);
	j->GetValueInt("addr", &l.addr);
	j->GetValueInt("steps", &l.steps);
	j->GetValueInt("speed", &l.speed);
	j->GetValueInt64("func", &l.func);
	j->GetValueInt("flags", &l.flags);
	j->GetValueInt("vmin", &l.vmin);
	j->GetValueInt("vslow", &l.vslow);
	j->GetValueInt("vmid", &l.vmid);
	j->GetValueInt("vfast", &l.vfast);
	j->GetValueInt("vmax", &l.vmax);

	return l;
};


int Locomotives::Change(Locomotive *loco) {
	int i;
	int ifree = -1;

	Lock();

	for (i = 0; i < max; i++) {
		if (locomotives[i].name[0] != 0) {
			// found element
			if (strncmp(locomotives[i].name, loco->name, REFERENCENAME_LEN) == 0) {
				ifree = i;
				break;
			}
		}
		else if (ifree == -1) ifree = i;
	}
	// element not found add new element
	if (ifree != -1 && ifree < max) {
		locomotives[ifree] = *loco;
		strncpy (locomotives[ifree].name, loco->name, REFERENCENAME_LEN);
		strncpy (locomotives[ifree].ifname, loco->ifname, REFERENCENAME_LEN);
	}

	changed = 1;
	UnLock();

	return 1;
};


int Locomotives::Delete(string name) {
	int i;

	Lock();
	for (i = 0; i < max; i++) if (locomotives[i].name[0] != 0) {
		if (name.compare(locomotives[i].name) == 0) {
			locomotives[i].name[0] = 0;
			locomotives[i].ifname[0] = 0;
			locomotives[i].addr = 0;
			locomotives[i].steps = 0;
			locomotives[i].vmin = 0;
			locomotives[i].vslow = 0;
			locomotives[i].vmid = 0;
			locomotives[i].vfast = 0;
			locomotives[i].vmax = 0;
			locomotives[i].flags = 0;
			changed = 1;
			break;
		}
	}

	UnLock();

	return 1;
};


int Locomotives::SetSpeed(string name, int speed) {
	int i;

	Lock();
	for (i = 0; i < max; i++) if (locomotives[i].name[0] != 0) {
		if (name.compare(locomotives[i].name) == 0) {
			server->interfaces.SetLocoSpeed(&locomotives[i], speed);
			break;
		}
	}

	UnLock();

	return 1;
};


int Locomotives::SetFunction(string name, int func, int value) {
	int i;

	Lock();
	for (i = 0; i < max; i++) if (locomotives[i].name[0] != 0) {
		if (name.compare(locomotives[i].name) == 0) {
			server->interfaces.SetLocoFunction(&locomotives[i], func, value);
			break;
		}
	}

	UnLock();

	return 1;
};



//
// set values from bus...
//
int Locomotives::SetSpeedFromBus(string name, int addr, int speed) {
	int i;
	JSONParse jp;

	for (i = 0; i < max; i++) if (locomotives[i].name[0] != 0) {
		if (name.compare(locomotives[i].name) == 0 && locomotives[i].addr == addr) {
			locomotives[i].speed = speed;

			jp.AddObject("locomotive",_GetJSON(i));
			if(network) network->ChangeListPushToAll(jp.ToString());

			return 1;
		}
	}
	return 0;
};


int Locomotives::SetDirectionFromBus(string name, int addr, int reverse) {
	int i;
	JSONParse jp;

	for (i = 0; i < max; i++) if (locomotives[i].name[0] != 0) {
		if (name.compare(locomotives[i].name) == 0 && locomotives[i].addr == addr) {
			if (reverse)	locomotives[i].flags |= LOCO_F_REVERSE;
			else			locomotives[i].flags &= ~LOCO_F_REVERSE;

			jp.AddObject("locomotive",_GetJSON(i));
			if(network) network->ChangeListPushToAll(jp.ToString());

			return 1;
		}
	}
	return 0;
};