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

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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 << ends;
//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 << "'" << ends;
//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 << ends;
//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 << "'" << ends;
//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);
}

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/*
* 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) {
if (*c == '/')
j++;
if (j < num_slashes)

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else if (*c != '/')

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c++;
}
type = -1;

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err_counter = 0;
valid = false;
}
event::event(string& s) : name(s)
{
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) {
if (*c == '/')
j++;
if (j < num_slashes)

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else if (*c != '/')

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c++;
}
type = -1;

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err_counter = 0;
valid = false;
}
void event::push_alarm(string& n)
{
m_alarm.push_back(n);
}
void event::pop_alarm(string& n)
{
vector<string>::iterator it = find(m_alarm.begin(), m_alarm.end(), n);
if(it != m_alarm.end())
m_alarm.erase(it);
else
cout << "event::"<<__func__<< ": event="<<name<<" ALARM '"<< n << "' NOT FOUND!"<< endl;

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}
bool event::operator==(const event& e)
{
return(name == e.name);
}
bool event::operator==(const string& s)
{
return(name == s);
}
/*
* event_table class methods
*/
/*void event_table::push_back(event e)

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{
// v_event.push_back(e);//TODO: replaced with add
}*/

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void event_table::show(void)
{
DEBUG_STREAM << "events found:" << endl;
if (v_event.empty() == false) {
vector<event>::iterator i = v_event.begin();
while (i != v_event.end()) {
DEBUG_STREAM << "\t" << i->name << endl;
i++;
}
}
}
event_table::event_table(Tango::DeviceImpl *s):Tango::LogAdapter(s)
{
mydev = s;

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unsigned int event_table::size(void)
{
return(v_event.size());
}

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void event_table::init_proxy(void) throw(vector<string> &)
{
vector<string> proxy_error;
if (v_event.empty() == false) {
for (vector<event>::iterator i = v_event.begin(); \
i != v_event.end(); i++)
{
try {
i->dp = new Tango::DeviceProxy(i->device);
} catch(Tango::DevFailed& e)
{
ostringstream o;
o << "new DeviceProxy() failed for " \
<< i->device << ends;
ERROR_STREAM << o.str() << endl;
//throw o.str();
proxy_error.push_back(o.str());
}
}
}
if(!proxy_error.empty())
throw proxy_error;
}
void event_table::free_proxy(void)
{
if (v_event.empty() == false) {
for (vector<event>::iterator i = v_event.begin(); \
i != v_event.end(); i++) {
try{
delete i->dp;
DEBUG_STREAM << gettime().tv_sec << " event_table::free_proxy(): deleted proxy " << i->device << endl;
} catch(...)
{
ERROR_STREAM << "event_table::free_proxy: exception deleting proxy of event: " << i->name << endl;
}
}
}
}
void event_table::subscribe(EventCallBack& ecb) throw(vector<string> &)//throw(string&)
{
vector<string> subscribe_error;
if (v_event.empty() == false) {
for (vector<event>::iterator i = v_event.begin(); \
i != v_event.end(); i++) {
try {
i->eid = i->dp->subscribe_event(i->attribute, \
Tango::CHANGE_EVENT, \
&ecb, i->filter);
} catch (...) {
ostringstream o;
o << "subscribe_event() failed for " \
<< i->name << ends;
ERROR_STREAM << o.str() << endl;
//throw o.str();
subscribe_error.push_back(o.str());
}
}
}
if(!subscribe_error.empty())
throw subscribe_error;
}
void event_table::unsubscribe(void) throw(string&)
{
ostringstream o;
if (v_event.empty() == false) {
for (vector<event>::iterator i = v_event.begin(); \
i != v_event.end(); i++) {
try {
i->dp->unsubscribe_event(i->eid);
DEBUG_STREAM << gettime().tv_sec << " event_table::unsubscribe(): unsubscribed " << i->name << endl;
} catch (Tango::DevFailed& e) {
o << " unsubscribe_event() failed for " << i->name << " err=" << e.errors[0].desc;
ERROR_STREAM << gettime().tv_sec << " event_table::unsubscribe(): " << o.str() << endl;
//throw o.str();
} catch (...) {
o << " unsubscribe_event() failed for " \
<< i->name;
ERROR_STREAM << gettime().tv_sec << " event_table::unsubscribe(): " << o.str() << endl;
//throw o.str();
}
}
}
if(o.str().length() > 0)
throw o.str();
}
#endif
//=============================================================================
/**
* get signal by name.
*/
//=============================================================================
event *event_table::get_signal(string signame)
{
//omni_mutex_lock sync(*this);
for (unsigned int i=0 ; i<v_event.size() ; i++)
{
event *sig = &v_event[i];
if (sig->name==signame)
return sig;
}
for (unsigned int i=0 ; i<v_event.size() ; i++)
{
event *sig = &v_event[i];
if (static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->compare_without_domain(sig->name,signame))
return sig;
}
return NULL;
}
//=============================================================================
/**
* Stop saving on DB a signal.
*/
//=============================================================================
void event_table::stop(string &signame)
{
DEBUG_STREAM <<"event_table::"<< __func__<<": entering signame="<< signame << endl;
ReaderLock lock(veclock);
for (unsigned int i=0 ; i<v_event.size() ; i++)
{
if (v_event[i].name==signame)
{
v_event[i].siglock->writerIn();
if(!v_event[i].stopped)
{
v_event[i].stopped=true;
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeStoppedNumber_read++;
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeStartedNumber_read--;
try
{
remove(signame, true);
}
catch (Tango::DevFailed &e)
{
//Tango::Except::print_exception(e);
INFO_STREAM << "event_table::stop: error removing " << signame << endl;
}
}
if(v_event[i].paused)
{
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributePausedNumber_read--;
try
{
remove(signame, true);
}
catch (Tango::DevFailed &e)
{
//Tango::Except::print_exception(e);
INFO_STREAM << "event_table::stop: error removing " << signame << endl;
}
}
v_event[i].running=false;
v_event[i].paused=false;
}
v_event[i].siglock->writerOut();
return;
}
}
for (unsigned int i=0 ; i<v_event.size() ; i++)
{
#ifndef _MULTI_TANGO_HOST
if (static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->compare_without_domain(v_event[i].name,signame))
if (!static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->compare_tango_names(v_event[i].name,signame))
#endif
{
v_event[i].siglock->writerIn();
if(!v_event[i].stopped)
{
v_event[i].stopped=true;
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeStoppedNumber_read++;
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeStartedNumber_read--;
try
{
remove(signame, true);
}
catch (Tango::DevFailed &e)
{
//Tango::Except::print_exception(e);
INFO_STREAM << "event_table::stop: error removing " << signame << endl;
}
}
if(v_event[i].paused)
{
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributePausedNumber_read--;
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try
{
remove(signame, true);
}
catch (Tango::DevFailed &e)
{
//Tango::Except::print_exception(e);
INFO_STREAM << "event_table::stop: error removing " << signame << endl;
}
}
v_event[i].running=false;
v_event[i].paused=false;
}
v_event[i].siglock->writerOut();
return;
}
}
// if not found
Tango::Except::throw_exception(
(const char *)"BadSignalName",
"Signal " + signame + " NOT subscribed",
(const char *)"event_table::stop()");
}
//=============================================================================
/**
* Remove a signal in the list.
*/
//=============================================================================
void event_table::remove(string &signame, bool stop)
{
DEBUG_STREAM <<"event_table::"<< __func__<<": entering signame="<< signame << endl;
// Remove in signals list (vector)
{
if(!stop)
veclock.readerIn();
event *sig = get_signal(signame);
int event_id = sig->event_id;
Tango::AttributeProxy *attr = sig->attr;
if(!stop)
veclock.readerOut();
if(stop)
{
try
{
if(event_id != SUB_ERR && attr)
{
DEBUG_STREAM <<"event_table::"<< __func__<<": unsubscribing... "<< signame << endl;
//unlocking, locked in event_table::stop but possible deadlock if unsubscribing remote attribute with a faulty event connection
sig->siglock->writerOut();
attr->unsubscribe_event(event_id);
sig->siglock->writerIn();
DEBUG_STREAM <<"event_table::"<< __func__<<": unsubscribed... "<< signame << endl;
}
}
catch (Tango::DevFailed &e)
{
// Do nothing
// Unregister failed means Register has also failed
sig->siglock->writerIn();
INFO_STREAM <<"event_table::"<< __func__<<": Exception unsubscribing " << signame << " err=" << e.errors[0].desc << endl;
}
}
if(!stop)
veclock.writerIn();
vector<event>::iterator pos = v_event.begin();
bool found = false;
for (unsigned int i=0 ; i<v_event.size() && !found ; i++, pos++)
{
event *sig = &v_event[i];
if (sig->name==signame)
{
found = true;
if(stop)
{
DEBUG_STREAM <<"event_table::"<<__func__<< ": removing " << signame << endl;
//sig->siglock->writerIn(); //: removed, already locked in event_table::stop
try
{
if(sig->event_id != SUB_ERR)
{
delete sig->event_cb;
}
if(sig->attr)
delete sig->attr;
}
catch (Tango::DevFailed &e)
{
// Do nothing
// Unregister failed means Register has also failed
INFO_STREAM <<"event_table::"<< __func__<<": Exception deleting " << signame << " err=" << e.errors[0].desc << endl;
}
//sig->siglock->writerOut();
DEBUG_STREAM <<"event_table::"<< __func__<<": stopped " << signame << endl;
}
if(!stop)
{
if(sig->running)
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeStartedNumber_read--;
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributePausedNumber_read--;
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeStoppedNumber_read--;
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeNumber_read--;
delete sig->siglock;
v_event.erase(pos);
DEBUG_STREAM <<"event_table::"<< __func__<<": removed " << signame << endl;
}
break;
}
}
pos = v_event.begin();
if (!found)
{
for (unsigned int i=0 ; i<v_event.size() && !found ; i++, pos++)
{
event *sig = &v_event[i];
#ifndef _MULTI_TANGO_HOST
if (static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->compare_without_domain(sig->name,signame))
if (!static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->compare_tango_names(sig->name,signame))
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#endif
{
found = true;
DEBUG_STREAM <<"event_table::"<<__func__<< ": removing " << signame << endl;
if(stop)
{
sig->siglock->writerIn();
try
{
if(sig->event_id != SUB_ERR)
{
delete sig->event_cb;
}
if(sig->attr)
delete sig->attr;
}
catch (Tango::DevFailed &e)
{
// Do nothing
// Unregister failed means Register has also failed
INFO_STREAM <<"event_table::"<< __func__<<": Exception unsubscribing " << signame << " err=" << e.errors[0].desc << endl;
}
sig->siglock->writerOut();
DEBUG_STREAM <<"event_table::"<< __func__<<": stopped " << signame << endl;
}
if(!stop)
{
if(sig->running)
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeStartedNumber_read--;
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributePausedNumber_read--;
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeStoppedNumber_read--;
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeNumber_read--;
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delete sig->siglock;
v_event.erase(pos);
DEBUG_STREAM <<"event_table::"<< __func__<<": removed " << signame << endl;
}
break;
}
}
}
if(!stop)
veclock.writerOut();
if (!found)
Tango::Except::throw_exception(
(const char *)"BadSignalName",
"Signal " + signame + " NOT subscribed",
(const char *)"event_table::remove()");
}
// then, update property
/* if(!stop)
{
DEBUG_STREAM <<"event_table::"<< __func__<<": going to increase action... action="<<action<<"++" << endl;
if(action <= UPDATE_PROP)
action++;
//put_signal_property(); //TODO: wakeup thread and let it do it? -> signal()
signal();
}*/
}
void event_table::update_property()
{
DEBUG_STREAM <<"event_table::"<< __func__<<": going to increase action... action="<<action<<"++" << endl;
if(action <= UPDATE_PROP)
action++;
//put_signal_property(); //TODO: wakeup thread and let it do it? -> signal()
signal();
}
//=============================================================================
/**
* Remove a signal in the list.
*/
//=============================================================================
void event_table::unsubscribe_events()
{
DEBUG_STREAM <<"event_table::"<<__func__<< " entering..."<< endl;
veclock.readerIn();
vector<event> local_signals(v_event);
veclock.readerOut();
for (unsigned int i=0 ; i<local_signals.size() ; i++)
{
event *sig = &local_signals[i];
if (local_signals[i].event_id != SUB_ERR && sig->attr)
{
DEBUG_STREAM <<"event_table::"<<__func__<< " unsubscribe " << sig->name << " id="<<omni_thread::self()->id()<< endl;
try
{
sig->attr->unsubscribe_event(sig->event_id);
DEBUG_STREAM <<"event_table::"<<__func__<< " unsubscribed " << sig->name << endl;
}
catch (Tango::DevFailed &e)
{
// Do nothing
// Unregister failed means Register has also failed
INFO_STREAM <<"event_table::"<<__func__<< " ERROR unsubscribing " << sig->name << " err="<<e.errors[0].desc<< endl;
}
}
}
veclock.writerIn();
for (unsigned int i=0 ; i<v_event.size() ; i++)
{
event *sig = &v_event[i];
sig->siglock->writerIn();
if (v_event[i].event_id != SUB_ERR && sig->attr)
{
delete sig->event_cb;
DEBUG_STREAM <<"event_table::"<<__func__<< " deleted cb " << sig->name << endl;
}
if(sig->attr)
{
delete sig->attr;
DEBUG_STREAM <<"event_table::"<<__func__<< " deleted proxy " << sig->name << endl;
}
sig->siglock->writerOut();
delete sig->siglock;
DEBUG_STREAM <<"event_table::"<<__func__<< " deleted lock " << sig->name << endl;
}
DEBUG_STREAM <<"event_table::"<<__func__<< " ended loop, deleting vector" << endl;
/*for (unsigned int j=0 ; j<signals.size() ; j++, pos++)
{
signals[j].event_id = SUB_ERR;
signals[j].event_conf_id = SUB_ERR;
signals[j].archive_cb = NULL;
signals[j].attr = NULL;
}*/
v_event.clear();
veclock.writerOut();
DEBUG_STREAM <<"event_table::"<< __func__<< ": exiting..."<<endl;
}
//=============================================================================
/**
* Add a new signal.
*/
//=============================================================================
void event_table::add(string &signame, vector<string> contexts)
{
DEBUG_STREAM << "event_table::"<<__func__<< " entering signame=" << signame << endl;
add(signame, contexts, NOTHING, false);
}
//=============================================================================
/**
* Add a new signal.
*/
//=============================================================================
void event_table::add(string &signame, vector<string> contexts, int to_do, bool start)
{
DEBUG_STREAM << "event_table::"<<__func__<<": Adding " << signame << " to_do="<<to_do<<" start="<<(start ? "Y" : "N")<< endl;
{
veclock.readerIn();
event *sig;
// Check if already subscribed
bool found = false;
for (unsigned int i=0 ; i<v_event.size() && !found ; i++)
{
sig = &v_event[i];
found = (sig->name==signame);
}
for (unsigned int i=0 ; i<v_event.size() && !found ; i++)
{
sig = &v_event[i];
found = static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->compare_without_domain(sig->name,signame);
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}
veclock.readerOut();
//DEBUG_STREAM << "event_table::"<<__func__<<": signame="<<signame<<" found="<<(found ? "Y" : "N") << " start="<<(start ? "Y" : "N")<< endl;
if (found && !start)
Tango::Except::throw_exception(
(const char *)"BadSignalName",
"Signal " + signame + " already subscribed",
(const char *)"event_table::add()");
event *signal;
if (!found && !start)
{
// on name, split device name and attrib name
string::size_type idx = signame.find_last_of("/");
if (idx==string::npos)
{
Tango::Except::throw_exception(
(const char *)"SyntaxError",
"Syntax error in signal name " + signame,
(const char *)"event_table::add()");
}
signal = new event();
// Build Hdb Signal object
signal->name = signame;
signal->siglock = new(ReadersWritersLock);
signal->devname = signal->name.substr(0, idx);
signal->attname = signal->name.substr(idx+1);
signal->ex_reason = "NOT_connected";
signal->ex_desc = "Attribute not subscribed";
signal->ex_origin = "...";
signal->attr = NULL;
signal->running = false;
signal->stopped = true;
signal->paused = false;
//DEBUG_STREAM << "event_table::"<<__func__<<": signame="<<signame<<" created signal"<< endl;
}
else if(found && start)
{
signal = sig;
signal->siglock->writerIn();
signal->ex_reason = "NOT_connected";
signal->ex_desc = "Attribute not subscribed";
signal->ex_origin = "...";
signal->siglock->writerOut();
//DEBUG_STREAM << "created proxy to " << signame << endl;
// create Attribute proxy
signal->attr = new Tango::AttributeProxy(signal->name); //TODO: OK out of siglock? accessed only inside the same thread?
DEBUG_STREAM << "event_table::"<<__func__<<": signame="<<signame<<" created proxy"<< endl;
}
signal->event_id = SUB_ERR;
signal->evstate = Tango::ALARM;
signal->isZMQ = false;
signal->okev_counter = 0;
signal->okev_counter_freq = 0;
signal->nokev_counter = 0;
signal->nokev_counter_freq = 0;
signal->first = true;
signal->first_err = true;
clock_gettime(CLOCK_MONOTONIC, &signal->last_ev);
if(found && start)
{
}
//DEBUG_STREAM <<"event_table::"<< __func__<< " created proxy to " << signame << endl;
if (!found && !start)
{
veclock.writerIn();
// Add in vector
v_event.push_back(*signal);
delete signal;
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeNumber_read++;
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeStoppedNumber_read++;
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veclock.writerOut();
//DEBUG_STREAM << "event_table::"<<__func__<<": signame="<<signame<<" push_back signal"<< endl;
}
else if(found && start)
{
}
DEBUG_STREAM <<"event_table::"<< __func__<<": going to increase action... action="<<action<<" += " << to_do << endl;
if(action <= UPDATE_PROP)
action += to_do;
}
DEBUG_STREAM <<"event_table::"<< __func__<<": exiting... " << signame << endl;
signal();
//condition.signal();
}
//=============================================================================
/**
* Subscribe archive event for each signal
*/
//=============================================================================
void event_table::subscribe_events()
{
/*for (unsigned int ii=0 ; ii<v_event.size() ; ii++)
{
event *sig2 = &v_event[ii];
int ret = pthread_rwlock_trywrlock(&sig2->siglock);
DEBUG_STREAM << __func__<<": pthread_rwlock_trywrlock i="<<ii<<" name="<<sig2->name<<" just entered " << ret << endl;
if(ret == 0) pthread_rwlock_unlock(&sig2->siglock);
}*/
//omni_mutex_lock sync(*this);
veclock.readerIn();
for (unsigned int i=0 ; i<v_event.size() ; i++)
{
event *sig = &v_event[i];
sig->siglock->writerIn();
if (sig->event_id==SUB_ERR && !sig->stopped)
{
if(!sig->attr)
{
try
{
vector<string> contexts; //TODO!!!
add(sig->name, contexts, NOTHING, true);
}
catch (Tango::DevFailed &e)
{
//Tango::Except::print_exception(e);
INFO_STREAM << "event_table::subscribe_events: error adding " << sig->name <<" err="<< e.errors[0].desc << endl;
v_event[i].ex_reason = e.errors[0].reason;
v_event[i].ex_desc = e.errors[0].desc;
// v_event[i].ex_desc.erase(std::remove(v_event[i].ex_desc.begin(), v_event[i].ex_desc.end(), '\n'), v_event[i].ex_desc.end());
v_event[i].ex_origin = e.errors[0].origin;
v_event[i].siglock->writerOut();
continue;
}
}
sig->event_cb = new EventCallBack(static_cast<AlarmHandler_ns::AlarmHandler *>(mydev));
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sig->first = true;
sig->first_err = true;
DEBUG_STREAM << "event_table::"<<__func__<<":Subscribing for " << sig->name << " " << (sig->first ? "FIRST" : "NOT FIRST") << endl;
sig->siglock->writerOut();
int event_id = SUB_ERR;
bool isZMQ = true;
bool err = false;
try
{
event_id = sig->attr->subscribe_event(
Tango::CHANGE_EVENT,
sig->event_cb,
/*stateless=*/false);
/*sig->evstate = Tango::ON;
//sig->first = false; //first event already arrived at subscribe_event
sig->status.clear();
sig->status = "Subscribed";
DEBUG_STREAM << sig->name << " Subscribed" << endl;*/
// Check event source ZMQ/Notifd ?
Tango::ZmqEventConsumer *consumer =
Tango::ApiUtil::instance()->get_zmq_event_consumer();
isZMQ = (consumer->get_event_system_for_event_id(event_id) == Tango::ZMQ);
DEBUG_STREAM << sig->name << "(id="<< event_id <<"): Subscribed " << ((isZMQ)? "ZMQ Event" : "NOTIFD Event") << endl;
}
catch (Tango::DevFailed &e)
{
INFO_STREAM <<"event_table::"<<__func__<<": sig->attr->subscribe_event EXCEPTION:" << endl;
err = true;
Tango::Except::print_exception(e);
sig->siglock->writerIn();
sig->ex_reason = e.errors[0].reason;
sig->ex_desc = e.errors[0].desc;
sig->ex_origin = e.errors[0].origin;
sig->event_id = SUB_ERR;
delete sig->event_cb;
sig->siglock->writerOut();
}
if(!err)
{
sig->siglock->writerIn();
sig->event_id = event_id;
sig->isZMQ = isZMQ;
sig->siglock->writerOut();
}
}
else
{
sig->siglock->writerOut();
}
}
veclock.readerOut();
initialized = true;
}
void event_table::start(string &signame)
{
DEBUG_STREAM << "event_table::"<<__func__<< " entering signame=" << signame << endl;
ReaderLock lock(veclock);
vector<string> contexts;
for (unsigned int i=0 ; i<v_event.size() ; i++)
{
if (v_event[i].name==signame)
{
v_event[i].siglock->writerIn();
if(!v_event[i].running)
{
if(v_event[i].stopped)
{
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeStoppedNumber_read--;
try
{
add(signame, contexts, NOTHING, true);
}
catch (Tango::DevFailed &e)
{
//Tango::Except::print_exception(e);
INFO_STREAM << "event_table::start: error adding " << signame <<" err="<< e.errors[0].desc << endl;
v_event[i].ex_reason = e.errors[0].reason;
v_event[i].ex_desc = e.errors[0].desc;
v_event[i].ex_origin = e.errors[0].origin;
/*v_event[i].siglock->writerOut();
return;*/
}
}
v_event[i].running=true;
if(v_event[i].paused)
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributePausedNumber_read--;
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeStartedNumber_read++;
v_event[i].paused=false;
v_event[i].stopped=false;
}
v_event[i].siglock->writerOut();
return;
}
}
for (unsigned int i=0 ; i<v_event.size() ; i++)
{
#ifndef _MULTI_TANGO_HOST
if (static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->compare_without_domain(v_event[i].name,signame))
if (!static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->compare_tango_names(v_event[i].name,signame))
#endif
{
v_event[i].siglock->writerIn();
if(!v_event[i].running)
{
if(v_event[i].stopped)
{
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeStoppedNumber_read--;
try
{
add(signame, contexts, NOTHING, true);
}
catch (Tango::DevFailed &e)
{
//Tango::Except::print_exception(e);
INFO_STREAM << "event_table::start: error adding " << signame << endl;
v_event[i].ex_reason = e.errors[0].reason;
v_event[i].ex_desc = e.errors[0].desc;
v_event[i].ex_origin = e.errors[0].origin;
/*signals[i].siglock->writerOut();
return;*/
}
}
v_event[i].running=true;
if(v_event[i].paused)
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributePausedNumber_read--;
static_cast<AlarmHandler_ns::AlarmHandler *>(mydev)->attr_AttributeStartedNumber_read++;
v_event[i].paused=false;
v_event[i].stopped=false;
}
v_event[i].siglock->writerOut();
return;
}
}
// if not found
Tango::Except::throw_exception(
(const char *)"BadSignalName",
"Signal " + signame + " NOT subscribed",
(const char *)"event_table::start()");
}
void event_table::start_all()
{