pip/libs/main/core/piobject.cpp

/*
	PIP - Platform Independent Primitives
	Object, base class of some PIP classes, provide EVENT -> EVENT_HANDLER mechanism
	Ivan Pelipenko peri4ko@yandex.ru

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU Lesser General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program 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 Lesser General Public License for more details.

	You should have received a copy of the GNU Lesser General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "piobject.h"
#include "pisysteminfo.h"
#include "pithread.h"
#include "piconditionvar.h"
#ifndef FREERTOS
#  include "pifile.h"
#endif

/** \class PIObject
 * \brief This is base class for any classes which use events -> handlers mechanism.
 * \details
 * \section PIObject_sec0 Events and Event handlers
 * %PIObject provide notification mechanism similar Qt but implemented
 * on language capabilities without any special preprocessors or compilers.
 * Any class inherits PIObject should use macro \a PIOBJECT() immediate
 * after declaration to proper compile.
 * 
 * Event is a some abstract event that can be raised at any time.
 * Event is a function but declared with special macro \a EVENT().
 * To raise event simply execute event function.
 * 
 * Event handler is a function but declared with special macro
 * \a EVENT_HANDLER(). You can use event handlers as ordinary functions.
 * 
 * Main goal of this mechanism is perform abstract connections between
 * various objects. This functionality provide macro \a CONNECT() which
 * connect some event of first object to some event handler or event of
 * second object. Each event can be connected any times to any event handlers.
 * 
 * \image html events_handlers.png
 * 
 * Example: \snippet piobject.cpp main
 * Result:
\code{.cpp}
handler B: 2 , 0.5
handler A: event to handler
handler A: event to event
\endcode
 */


PIString PIObject::__MetaFunc::arguments() const {
	return types.join(",");
}


PIString PIObject::__MetaFunc::fullFormat() const {
	PIString ret = type_ret + " " + scope + "::" + func_name +"(";
	for (int i = 0; i < types.size_s(); ++i) {
		if (i > 0) ret += ", ";
		ret += types[i] + " " + names[i];
	}
	ret += ")";
	return ret;
}


PIObject::PIObject(const PIString & name): _signature_(__PIOBJECT_SIGNATURE__), emitter_(0), thread_safe_(false), proc_event_queue(false) {
	in_event_cnt = 0;
	setName(name);
	setDebug(true);
	mutexObjects().lock();
	objects() << this;
	mutexObjects().unlock();
	//piCout << "new" << this;
}


PIObject::~PIObject() {
	in_event_cnt = 0;
	//piCout << "delete" << this;
	mutexObjects().lock();
	objects().removeAll(this);
	mutexObjects().unlock();
	piDisconnect(this);
}

PIMap<PIString, PIVariant> PIObject::properties() const {
	PIMap<PIString, PIVariant> ret;
	piForeachC (PropertyHash p, properties_)
			ret[p.second.first] = p.second.second;
	return ret;
}





bool PIObject::execute(const PIString & method, const PIVector<PIVariant> & vl) {
	if (method.isEmpty()) return false;
	if (!isPIObject()) {
		piCout << "Error: \"execute(" << method << ")\":" << (void*)this << "is not PIObject!";
		return false;
	}
	int ac = 0;
	__MetaFunc func;
	bool ok = findSuitableMethodV(method, vl.size_s(), ac, func);
	if (!ok)
		return false;
	callAddrV(func.addrV, toThis(), ac, vl);
	return true;
}


bool PIObject::executeQueued(PIObject * performer, const PIString & method, const PIVector<PIVariant> & vl) {
	if (!isPIObject()) {
		piCout << "Error: \"executeQueued(" << method << ")\": this(" << (void*)this << ") is not PIObject!";
		return false;
	}
	if (!performer->isPIObject()) {
		piCout << "Error: \"executeQueued(" << method << ")\": performer(" << (void*)performer << ") is not PIObject!";
		return false;
	}
	int ac = 0;
	__MetaFunc func;
	bool ok = findSuitableMethodV(method, vl.size_s(), ac, func);
	if (!ok)
		return false;
	performer->postQueuedEvent(__QueuedEvent(func.addrV, toThis(), this, performer, vl));
	performer->proc_event_queue = true;
	return true;
}


void PIObject::piConnect(const PIString & src, const PIString & sig, void * dest, void * ev_h) {
	PIObject * o = findByName(src);
	if (o == 0) {
		piCout << "[PIObject] Can`t find object with name \"" << src << "\"!";
		return;
	}
	PIMutexLocker _ml(o->mutex_connect);
	PIMutexLocker _mld(((PIObject*)dest)->mutex_connect, ((PIObject*)dest) != o);
	o->connections << __Connection(ev_h, 0, sig, (PIObject*)dest, dest);
	((PIObject*)dest)->connectors << o;
}


void PIObject::piConnect(PIObject * src, const PIString & sig, const PIString & dest, void * ev_h) {
	PIObject * o = findByName(dest);
	if (o == 0) {
		piCout << "[PIObject] Can`t find object with name \"" << dest << "\"!";
		return;
	}
	PIMutexLocker _ml(src->mutex_connect);
	PIMutexLocker _mld(o->mutex_connect, src != o);
	src->connections << __Connection(ev_h, 0, sig, o, o);
	((PIObject*)o)->connectors << src;
}


void PIObject::piConnect(const PIString & src, const PIString & sig, const PIString & dest, void * ev_h) {
	PIObject * s = findByName(src);
	if (s == 0) {
		piCout << "[PIObject] Can`t find object with name \"" << src << "\"!";
		return;
	}
	PIObject * d = findByName(dest);
	if (d == 0) {
		piCout << "[PIObject] Can`t find object with name \"" << dest << "\"!";
		return;
	}
	PIMutexLocker _ml(s->mutex_connect);
	PIMutexLocker _mld(d->mutex_connect, s != d);
	s->connections << __Connection(ev_h, 0, sig, d, d);
	d->connectors << s;
}


PIStringList PIObject::scopeList() const {
	PIMutexLocker ml(__meta_mutex());
	return __meta_data()[classNameID()].scope_list;
}


PIStringList PIObject::methodsEH() const {
	PIMutexLocker ml(__meta_mutex());
	PIStringList ret;
	const __MetaData & ehd(__meta_data()[classNameID()]);
	for (auto eh = ehd.eh_func.constBegin(); eh != ehd.eh_func.constEnd(); eh++)
		ret << eh.value().fullFormat();
	return ret;
}


bool PIObject::isMethodEHContains(const PIString & name) const {
	PIMutexLocker ml(__meta_mutex());
	const __MetaData & ehd(__meta_data()[classNameID()]);
	for (auto eh = ehd.eh_func.constBegin(); eh != ehd.eh_func.constEnd(); eh++) {
		if (eh.value().func_name == name)
			return true;
	}
	return false;
}


PIString PIObject::methodEHArguments(const PIString & name) const {
	PIMutexLocker ml(__meta_mutex());
	const __MetaData & ehd(__meta_data()[classNameID()]);
	for (auto eh = ehd.eh_func.constBegin(); eh != ehd.eh_func.constEnd(); eh++) {
		if (eh.value().func_name == name)
			return eh.value().arguments();
	}
	return PIString();
}


PIString PIObject::methodEHFullFormat(const PIString & name) const {
	PIMutexLocker ml(__meta_mutex());
	const __MetaData & ehd(__meta_data()[classNameID()]);
	for (auto eh = ehd.eh_func.constBegin(); eh != ehd.eh_func.constEnd(); eh++) {
		if (eh.value().func_name == name)
			return eh.value().fullFormat();
	}
	return PIString();
}


PIString PIObject::methodEHFromAddr(const void * addr) const {
	return methodEH(addr).func_name;
}


PIVector<PIObject::__MetaFunc> PIObject::findEH(const PIString & name) const {
	PIVector<__MetaFunc> ret;
	const __MetaData & ehd(__meta_data()[classNameID()]);
	for (auto eh = ehd.eh_func.constBegin(); eh != ehd.eh_func.constEnd(); eh++) {
		if (eh.value().func_name == name)
			ret << eh.value();
	}
	return ret;
}


PIObject::__MetaFunc PIObject::methodEH(const void * addr) const {
	PIMutexLocker ml(__meta_mutex());
	return __meta_data()[classNameID()].eh_func.value(addr);
}


void PIObject::piConnect(PIObject * src, const PIString & sig, PIObject * dest_o, void * dest, void * ev_h, void * e_h, int args, const char * loc) {
	//piCout << "piConnect ...";
	//piCout << "piConnect" << src << (void*)(dest) << sig;
	//piCout << "piConnect" << src->className() << "->" << ((PIObject*)dest)->className();
	PIMutexLocker _ml(src->mutex_connect);
	PIMutexLocker _mld(dest_o->mutex_connect, src != dest_o);
	
	src->connections << __Connection(ev_h, e_h, sig, dest_o, dest, args);
	//piCout << "piConnect" << ((PIObject*)dest) << sig << ((PIObject*)dest)->connectors.size_s() << "...";
	//piCout << "addConnector" << dest_o << src;
	dest_o->connectors << src;
	//piCout << "piConnect" << ((PIObject*)dest) << sig << ((PIObject*)dest)->connectors.size_s();
	//piCout << "piConnect ok";
}


bool PIObject::piConnectU(PIObject * src, const PIString & sig, PIObject * dest_o, void * dest, const PIString & hname, const char * loc, PIObject * performer) {
	if (src == 0 || dest_o == 0 || dest == 0) return false;
	if (!src->isPIObject()) {
		piCout << "[piConnectU] \"" << sig << "\" -> \"" << hname << "\" error: source object is not PIObject! (" << loc << ")";
		return false;
	}
	if (!dest_o->isPIObject()) {
		piCout << "[piConnectU] \"" << sig << "\" -> \"" << hname << "\" error: destination object is not PIObject! (" << loc << ")";
		return false;
	}
	PIMutexLocker ml(__meta_mutex());
	PIMutexLocker mls(src->mutex_connect);
	PIMutexLocker mld(dest_o->mutex_connect, src != dest_o);
	PIVector<__MetaFunc> m_src = src->findEH(sig), m_dest = dest_o->findEH(hname);
	if (m_src.isEmpty()) {
		piCout << "[piConnectU] Error: can`t find event \"" << sig << "\" in class \"" << src->className() << "\"! (" << loc << ")";
		return false;
	}
	if (m_dest.isEmpty()) {
		piCout << "[piConnectU] Error: can`t find handler \"" << hname << "\" in class \"" << dest_o->className() << "\"! (" << loc << ")";
		return false;
	}
	void * addr_src(0), * addr_dest(0);
	int args(0);
	bool que = (performer != 0);
	piForeachC (__MetaFunc & fs, m_src) {
		if (addr_src != 0) break;
		piForeachC (__MetaFunc & fd, m_dest) {
			if (addr_src != 0) break;
			if (fs.arguments().startsWith(fd.arguments()) || fd.arguments().isEmpty()) {
				addr_src = fs.addr;
				addr_dest = que ? fd.addrV : fd.addr;
				args = fd.names.size_s();
			}
		}
	}
	if (addr_src == 0) {
		piCout << "[piConnectU] Error: can`t find suitable pair of event \"" << sig << "\" in class \"" << src->className()
				<< "\" and handler \"" << hname << "\" in class \"" << dest_o->className() << "\"! (" << loc << ")";
		return false;
	}
	src->connections << PIObject::__Connection(addr_dest, addr_src, sig, dest_o, dest, args, performer);
	if (que) performer->proc_event_queue = true;
	dest_o->connectors << src;
	//piCout << cc << cq << _ol.size();//"connect" << src << "->" << dest_o << ", dest.connectors.size() =" << dest_o->connectors.size();
	return true;
}


bool PIObject::piConnectLS(PIObject * src, const PIString & sig, std::function<void()> * f, const char * loc) {
	if (src == 0) {
		delete f;
		return false;
	}
	if (!src->isPIObject()) {
		piCout << "[piConnectLS] \"" << sig << "\" -> [lambda] error: source object is not PIObject! (" << loc << ")";
		delete f;
		return false;
	}
	PIMutexLocker ml(__meta_mutex());
	PIMutexLocker mls(src->mutex_connect);
	//piCout << "locked";
	PIVector<__MetaFunc> m_src = src->findEH(sig);
	if (m_src.isEmpty()) {
		piCout << "[piConnectLS] Error: can`t find event \"" << sig << "\" in class \"" << src->className() << "\"! (" << loc << ")";
		delete f;
		return false;
	}
	if (m_src.size() != 1) {
		piCout << "[piConnectLS] Error: can`t connect overloaded event \"" << sig << "\" in class \"" << src->className() << "\"! (" << loc << ")";
		delete f;
		return false;
	}
	PIObject::__Connection conn(0, m_src[0].addr, sig);
	//piCout << "found";
	conn.functor = f;
	src->connections << conn;
	//piCout << "finished";
	return true;
}


void PIObject::piDisconnect(PIObject * src, const PIString & sig, PIObject * dest, void * ev_h) {
	PIMutexLocker _ml(src->mutex_connect);
	PIMutexLocker _mld(dest->mutex_connect, src != dest);
	for (int i = 0; i < src->connections.size_s(); ++i) {
		__Connection & cc(src->connections[i]);
		if (cc.event == sig && cc.dest_o == dest && cc.slot == ev_h) {
			src->connections[i].destroy();
			src->connections.remove(i);
			i--;
		}
	}
	dest->updateConnectors();
}


void PIObject::piDisconnect(PIObject * src, const PIString & sig, PIObject * dest) {
	PIMutexLocker _ml(src->mutex_connect);
	PIMutexLocker _mld(dest->mutex_connect, src != dest);
	for (int i = 0; i < src->connections.size_s(); ++i) {
		__Connection & cc(src->connections[i]);
		if (cc.event == sig && cc.dest_o == dest) {
			src->connections[i].destroy();
			src->connections.remove(i);
			i--;
		}
	}
	dest->updateConnectors();
}


void PIObject::piDisconnect(PIObject * src, const PIString & sig) {
	PIMutexLocker _ml(src->mutex_connect);
	for (int i = 0; i < src->connections.size_s(); ++i) {
		__Connection & cc(src->connections[i]);
		if (cc.event == sig) {
			PIObject * dest = cc.dest_o;
			if (!dest) {
				src->connections[i].destroy();
				src->connections.remove(i);
				i--;
#if !defined(ANDROID) && !defined(MAC_OS) && !defined(FREERTOS)
				PIMutexLocker _mld(dest->mutex_connect, src != dest);
#endif
				dest->updateConnectors();
			}
		}
	}
}


void PIObject::piDisconnect(PIObject * src) {
	src->deleted();
	PIMutexLocker _ml(src->mutex_connect);
	PIVector<PIObject * > cv = src->connectors.toVector();
	piForeach (PIObject * o, cv) {
		//piCout << "disconnect"<< src->className()<< o->className();
		if (!o || (o == src)) continue;
		if (!o->isPIObject()) continue;
#if !defined(ANDROID) && !defined(MAC_OS) && !defined(FREERTOS)
		PIMutexLocker _mld(o->mutex_connect, src != o);
#endif
		PIVector<__Connection> & oc(o->connections);
		for (int i = 0; i < oc.size_s(); ++i) {
			if (oc[i].functor) continue;
			//piCout << "    check" << (void*)(oc[i].dest_o) << "==" << (void*)(src);
			if (oc[i].dest_o == src) {
				oc[i].destroy();
				oc.remove(i);
				--i;
			}
		}
	}
	piForeachC (PIObject::__Connection & c, src->connections) {
		if (c.functor) continue;
		if (!c.dest_o) continue;
		if (!c.dest_o->isPIObject()) continue;
		c.dest_o->connectors.remove(src);
	}
	for (int i = 0; i < src->connections.size_s(); ++i)
		src->connections[i].destroy();
	src->connections.clear();
}


void PIObject::updateConnectors() {
	//piCout << "*** updateConnectors" << this;
	connectors.clear();
	PIMutexLocker _ml(mutexObjects());
	piForeach (PIObject * o, objects()) {
		if (o == this) continue;
		PIVector<__Connection> & oc(o->connections);
		piForeach (__Connection & c, oc)
			if (c.dest == this)
				connectors << o;
	}
}


void PIObject::postQueuedEvent(const PIObject::__QueuedEvent & e) {
	mutex_queue.lock();
	events_queue << e;
	mutex_queue.unlock();
}


void * PIObject::toThis() const {
	//piCout << ptrOffset() << (void*)this << (void*)((char*)this - ptrOffset());
	return (void*)((char*)this - ptrOffset());
}


PIMutex & PIObject::__meta_mutex() {
	static PIMutex ret;
	return ret;
}


PIMap<uint, PIObject::__MetaData> & PIObject::__meta_data() {
	static PIMap<uint, PIObject::__MetaData> ret;
	return ret;
}


void PIObject::callQueuedEvents() {
	mutex_queue.lock();
	PIVector<__QueuedEvent> qe = events_queue;
	events_queue.clear();
	mutex_queue.unlock();
	piForeachC (__QueuedEvent & e, qe) {
		if (e.dest_o->thread_safe_) e.dest_o->mutex_.lock();
		e.dest_o->emitter_ = e.src;
		callAddrV(e.slot, e.dest, e.values.size_s(), e.values);
		e.dest_o->emitter_ = 0;
		if (e.dest_o->thread_safe_) e.dest_o->mutex_.unlock();
	}
}


void PIObject::deleteLater() {
	Deleter::instance()->post(this);
}


bool PIObject::findSuitableMethodV(const PIString & method, int args, int & ret_args, PIObject::__MetaFunc & ret) {
	PIVector<__MetaFunc> ml = findEH(method);
	if (ml.isEmpty()) {
		piCoutObj << "Error: no such method \"" << method << "\"!";
		return false;
	}
	int mfi = -1, ac = -1, mac = -1;
	for (int i = 0; i < ml.size_s(); ++i) {
		__MetaFunc & m(ml[i]);
		int j = m.names.size_s();
		if (mac < 0 || mac > j) mac = j;
		if ((j <= args) && (ac < j)) {
			ac = j;
			mfi = i;
		}
	}
	if (mfi < 0) {
		piCoutObj << "Error: no such suitable method \"" << method << "\", need at least" << mac << "arguments!";
		return false;
	}
	ret_args = ac;
	ret = ml[mfi];
	return true;
}


PIVector<PIObject * > & PIObject::objects() {
	static PIVector<PIObject * > * ret = new PIVector<PIObject * >();
	return *ret;
}


PIMutex & PIObject::mutexObjects() {
	static PIMutex ret;
	return ret;
}


void PIObject::callAddrV(void * slot, void * obj, int args, const PIVector<PIVariant> & vl) {
	args = piMini(args, vl.size_s());
	switch (args) {
	case 0: ((void(*)(void *))slot)(obj); break;
	case 1: ((void(*)(void * , const PIVariant & ))slot)(obj, vl[0]); break;
	case 2: ((void(*)(void * , const PIVariant & , const PIVariant & ))slot)(obj, vl[0], vl[1]); break;
	case 3: ((void(*)(void * , const PIVariant & , const PIVariant & , const PIVariant & ))slot)(obj, vl[0], vl[1], vl[2]); break;
	case 4: ((void(*)(void * , const PIVariant & , const PIVariant & , const PIVariant & , const PIVariant & ))slot)(obj, vl[0], vl[1], vl[2], vl[3]); break;
	default: break;
	}
}


PIString PIObject::simplifyType(const char * a) {
	PIString ret = PIStringAscii(a).trim();
	int white = -1;
	for (int i = 0; i < ret.size_s(); ++i) {
		bool iw = ret[i] == ' ' || ret[i] == '\t' || ret[i] == '\r' || ret[i] == '\n';
		//piCout << i << iw << white;
		if (white < 0) {
			if (iw) {
				white = i;
				continue;
			}
		} else {
			if (!iw) {
				ret.replace(white, i - white, " ");
				i = white;
				white = -1;
				//piCout << i;
			}
		}
	}
	ret.replaceAll(" &", "&");
	ret.replaceAll(" *", "*");
	if (ret.startsWith("const ") && ret.endsWith("&"))
		ret.cutLeft(6).cutRight(1).trim();
	return ret;
}


bool PIObject::isPIObject(const PIObject * o) {
	if (!o) return false;
	return o->_signature_ == __PIOBJECT_SIGNATURE__;
}


void PIObject::dump(const PIString & line_prefix) const {
	//printf("dump %s \"%s\"\n", className(), name().data());
	PICout(PICoutManipulators::AddNewLine) << line_prefix << "class " << className() << " (" << (const void*)this << ", \"" << name() << "\") {";
	PICout(PICoutManipulators::AddNewLine) << line_prefix << "    scope: " << scopeList().join(" -> ");
	PICout(PICoutManipulators::AddNewLine) << line_prefix << "    properties {";
	PICout(PICoutManipulators::AddNewLine) << line_prefix << "        count: " << properties_.size_s();
	//printf("dump %d properties\n", properties_.size());
	piForeachC (PropertyHash p, properties_)
		if (p.first != PIString("name").hash())
			PICout(PICoutManipulators::AddNewLine) << line_prefix << "        " << p.second.first << ": " << p.second.second;
	//printf("dump %d properties ok\n", properties_.size());
	PICout(PICoutManipulators::AddNewLine) << line_prefix << "    }";
	PICout(PICoutManipulators::AddNewLine) << line_prefix << "    methods {";
	const __MetaData & ehd(__meta_data()[classNameID()]);
	PICout(PICoutManipulators::AddNewLine) << line_prefix << "        count: " << ehd.eh_func.size_s();
	//printf("dump %d methods\n", ehd.eh_func.size());
	for (auto eh = ehd.eh_func.constBegin(); eh != ehd.eh_func.constEnd(); eh++) {
		PICout(PICoutManipulators::AddNewLine) << line_prefix << "        " << eh.value().fullFormat();
	}
	//printf("dump %d methods ok\n", ehd.eh_func.size());
	PICout(PICoutManipulators::AddNewLine) << line_prefix << "    }";
	PICout(PICoutManipulators::AddNewLine) << line_prefix << "    connections {";
	PICout(PICoutManipulators::AddNewLine) << line_prefix << "        count: " << connections.size_s();
	//printf("dump %d connections\n",connections.size());
	piForeachC (__Connection & c, connections) {
		PIObject * dst = c.dest_o;
		__MetaFunc ef = methodEH(c.signal);
		PIString src(c.event);
		if (!ef.func_name.isEmpty())
			src = ef.func_name + "(" + ef.arguments() + ")";
		if (dst) {
			__MetaFunc hf = dst->methodEH(c.slot);
			if (hf.func_name.isEmpty()) hf.func_name = "[BROKEN]";
			else hf.func_name += "(" + hf.arguments() + ")";
			PICout(PICoutManipulators::AddNewLine) << line_prefix << "        " << src << " -> " << dst->className() << " (" << c.dest << ", \"" << dst->name()  << "\")::" << hf.func_name;
		} else {
			PICout(PICoutManipulators::AddNewLine) << line_prefix << "        " << src << " -> " << "[lambda]";
		}
	}
	//printf("dump %d connections ok\n",connections.size());
	PICout(PICoutManipulators::AddNewLine) << line_prefix << "    }";
	PICout(PICoutManipulators::AddNewLine) << line_prefix << "}";
}


void dumpApplication() {
	PIMutexLocker _ml(PIObject::mutexObjects());
	//printf("dump application ...\n");
	PIDateTime cd = PIDateTime::current();
	PISystemInfo * pi = PISystemInfo::instance();
	PICout(PICoutManipulators::AddNewLine) << "application {";
	PICout(PICoutManipulators::AddNewLine) << "    PIP version: " << PIPVersion();
	PICout(PICoutManipulators::AddNewLine) << "    OS name: \"" << pi->OS_name << "\"";
	PICout(PICoutManipulators::AddNewLine) << "    OS version: \"" << pi->OS_version << "\"";
	PICout(PICoutManipulators::AddNewLine) << "    processors: " << pi->processorsCount;
	PICout(PICoutManipulators::AddNewLine) << "    architecture: \"" << pi->architecture << "\"";
	PICout(PICoutManipulators::AddNewLine) << "    hostname: \"" << pi->hostname << "\"";
	PICout(PICoutManipulators::AddNewLine) << "    username: \"" << pi->user << "\"";
	PICout(PICoutManipulators::AddNewLine) << "    exec command: \"" << pi->execCommand << "\"";
	PICout(PICoutManipulators::AddNewLine) << "    started: " << pi->execDateTime.toString();
	PICout(PICoutManipulators::AddNewLine) << "    uptime: " << PITime::fromSystemTime(cd.toSystemTime() - pi->execDateTime.toSystemTime()).toString();
	PICout(PICoutManipulators::AddNewLine) << "    PIObjects {";
	PICout(PICoutManipulators::AddNewLine) << "        count: " << PIObject::objects().size_s();
	piForeachC (PIObject * o, PIObject::objects())
		o->dump("        ");
	PICout(PICoutManipulators::AddNewLine) << "    }";
	PICout(PICoutManipulators::AddNewLine) << "}";
	//printf("dump application done\n");
}


#ifndef FREERTOS
bool dumpApplicationToFile(const PIString & path) {
	PIFile f(path + "_tmp");
	f.setName("__S__DumpFile");
	f.clear();
	if (!f.open(PIIODevice::WriteOnly)) return false;
	bool ba = PICout::isBufferActive();
	PICout::setBufferActive(true, true);
	dumpApplication();
	f << PICout::buffer();
	f.close();
	PICout::setBufferActive(ba, true);
	PIFile::rename(path + "_tmp", path);
	return true;
}
#endif


void PIObject::__MetaData::addScope(const PIString & s, uint shash) {
	if (!scope_id.contains(shash)) {
		scope_list << s;
		scope_id << shash;
	}
}


void PIObject::__Connection::destroy() {
	if (functor) delete functor;
	functor = nullptr;
}




PRIVATE_DEFINITION_START(PIObject::Deleter)
	PIThread thread;
	PIConditionVariable cond_var;
	PIMutex cond_mutex, queue_mutex;
	PIVector<PIObject*> obj_queue;
PRIVATE_DEFINITION_END(PIObject::Deleter)


PIObject::Deleter::Deleter() {
	//piCout << "Deleter start ...";
	stopping = started = posted = false;
	CONNECTL(&(PRIVATE->thread), started, [this](){proc();});
	PRIVATE->thread.startOnce();
	while (!started)
		piMSleep(1);
}


PIObject::Deleter::~Deleter() {
	//piCout << "~Deleter ...";
	stopping = true;
	PRIVATE->cond_var.notifyAll();
#ifndef WINDOWS
	while (PRIVATE->thread.isRunning())
		piMSleep(1);
#endif
	deleteAll();
	//piCout << "~Deleter ok";
}


PIObject::Deleter * PIObject::Deleter::instance() {
	static Deleter ret;
	return &ret;
}


void PIObject::Deleter::post(PIObject * o) {
	if (!o->isPIObject()) return;
	//piCout << "[Deleter] post" << o << "...";
	PRIVATE->queue_mutex.lock();
	if (!PRIVATE->obj_queue.contains(o))
		PRIVATE->obj_queue << o;
	PRIVATE->queue_mutex.unlock();
	PRIVATE->cond_var.notifyAll();
	posted = true;
	//piCout << "[Deleter] post" << o << "done";
}


void PIObject::Deleter::proc() {
	//piCout << "[Deleter] proc start";
	while (!stopping) {
		//piMSleep(1);
		//piCout << "[Deleter] proc wait ...";
		if (posted) {
			posted = false;
			started = true;
		} else {
			PRIVATE->cond_mutex.lock();
			started = true;
			PRIVATE->cond_var.wait(PRIVATE->cond_mutex);
			PRIVATE->cond_mutex.unlock();
		}
		//piCout << "[Deleter] proc wait done";
		deleteAll();
	}
	//piCout << "[Deleter] proc end ok";
}


void PIObject::Deleter::deleteAll() {
	PIVector<PIObject*> oq;
	PRIVATE->queue_mutex.lock();
	oq = PRIVATE->obj_queue;
	//piCout << "[Deleter] deleteAll" << oq.size_s() << "...";
	PRIVATE->obj_queue.clear();
	PRIVATE->queue_mutex.unlock();
	piForeach (PIObject * o, oq)
		deleteObject(o);
}


void PIObject::Deleter::deleteObject(PIObject * o) {
	//piCout << "[Deleter] delete" << (uintptr_t)o << "...";
	if (o->isPIObject()) {
		//piCout << "[Deleter] delete" << (uintptr_t)o << "wait atomic ...";
		while (o->isInEvent()) {
			piMSleep(1);
		}
		//piCout << "[Deleter] delete" << (uintptr_t)o << "wait atomic done";
		if (o->isPIObject())
			delete o;
	}
	//piCout << "[Deleter] delete" << (uintptr_t)o << "done";
}