event_table.cpp

/*
 * event_table.cpp
 *
 * $Author: graziano $
 *
 * $Revision: 1.5 $
 *
 * $Log: event_table.cpp,v $
 *
 *
 * copyleft: Sincrotrone Trieste S.C.p.A. di interesse nazionale
 *           Strada Statale 14 - km 163,5 in AREA Science Park
 *           34012 Basovizza, Trieste ITALY
 */

#include <sys/time.h>
#include <tango.h>
#include "event_table.h"
#include "AlarmHandler.h"
#include "alarm_grammar.h"

//for get_event_system_for_event_id, to know if ZMQ
#include <eventconsumer.h>
#include <regex>

static const char __FILE__rev[] = __FILE__ " $Revision: 1.5 $";

/*
 * event_list class methods
 */
void event_list::push_back(bei_t& e)
{
	this->lock();

	try{
		l_event.push_back(e);		
		empty.signal();
	}
	catch(omni_thread_fatal& ex)
	{
		ostringstream err;
		err << "omni_thread_fatal exception signaling omni_condition, err=" << ex.error;
		//WARN_STREAM << "event_list::push_back(): " << err.str() << endl;	
		printf("event_list::push_back(): %s", err.str().c_str());
	}			
	catch(Tango::DevFailed& ex)
	{
		ostringstream err;
		err << "exception  signaling omni_condition: '" << ex.errors[0].desc << "'";
		//WARN_STREAM << "event_list::push_back(): " << err.str() << endl;	
		printf("event_list::push_back: %s", err.str().c_str());
		Tango::Except::print_exception(ex);	
	}		
	catch(...)
	{
		//WARN_STREAM << "event_list::push_back(): catched unknown exception!!" << endl;
		printf("event_list::push_back(): catched unknown exception  signaling omni_condition!!");	
	}	
	this->unlock();
}

const bei_t event_list::pop_front(void)
{
	this->lock();
	//omni_mutex_lock l((omni_mutex)this);	//call automatically unlock on destructor and on exception
	try{
		while (l_event.empty() == true)
			empty.wait();					//wait release mutex while is waiting, then reacquire when signaled
	}
	catch(omni_thread_fatal& ex)
	{
		ostringstream err;
		err << "omni_thread_fatal exception waiting on omni_condition, err=" << ex.error;
		//WARN_STREAM << "event_list::pop_front(): " << err.str() << endl;	
		printf("event_list::pop_front(): %s", err.str().c_str());
		bei_t e;
		this->unlock();
		sleep(1);
		return(e);
	}			
	catch(Tango::DevFailed& ex)
	{
		ostringstream err;
		err << "exception  waiting on omni_condition: '" << ex.errors[0].desc << "'";
		//WARN_STREAM << "event_list::pop_front(): " << err.str() << endl;	
		printf("event_list::pop_front: %s", err.str().c_str());
		Tango::Except::print_exception(ex);
		bei_t e;
		this->unlock();
		sleep(1);
		return(e);		
	}		
	catch(...)
	{
		//WARN_STREAM << "event_list::pop_front(): catched unknown exception!!" << endl;
		printf("event_list::pop_front(): catched unknown exception  waiting on omni_condition!!");
		bei_t e;
		this->unlock();
		sleep(1);
		return(e);		
	}			
	/*const*/ bei_t e;

	e = *(l_event.begin());

	l_event.pop_front();

	this->unlock();
	return(e);
}

void event_list::clear(void)
{
	//this->lock();
	l_event.clear();
	//this->unlock();
}

list<bei_t> event_list::show(void)
{
	list<bei_t> el;
	
	this->lock();
	el = l_event;
	this->unlock();
	return(el);
}

size_t event_list::size(void)
{
	size_t res;

	this->lock();
	res = l_event.size();
	this->unlock();
	return(res);
}


/*
 * alarm_list class methods
 */
void alarm_list::push(string& a)
{
	l.lock();
	l_alarm.push_back(a);			
	l.unlock();
}

void alarm_list::pop(const string& a)
{
	l.lock();
	list<string>::iterator it = find(l_alarm.begin(), l_alarm.end(), a);
	if(it != l_alarm.end())
		l_alarm.erase(it);
	else
		cout << "alarm_list::"<<__func__<< ": ALARM '"<< a << "' NOT FOUND!"<< endl;	

	l.unlock();
	return;
}

void alarm_list::clear(void)
{
	l.lock();
	l_alarm.clear();
	l.unlock();
}

list<string> alarm_list::show(void)
{
	list<string> al;
	l.lock();
	al = l_alarm;
	l.unlock();
	return(al);
}

bool alarm_list::empty(void)
{
	bool res;
	l.lock();
	res = l_alarm.empty();
	l.unlock();
	return(res);
}


/*
 * event class methods
 */
event::event(string& s, value_t& v, Tango::TimeVal& t) : \
						 name(s), value(v), ts(t)
{
	const char *c = name.c_str();
	int j = 0;
	int num_slashes=3;	//not FQDN
	if(name.find("tango://") != string::npos)	//FQDN!!
		num_slashes = 6;
	while (*c) {