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dqm::Updater Class Reference

#include <DQMServices/XdaqCollector/interface/Updater.h>

List of all members.

Public Member Functions
bool	checkRunning () const
void	registerObserver (dqm::UpdateObserver *)
void	request_update ()
void	setRunning ()
void	setStopped ()
	Updater (DQMOldReceiver *the_mui)
	~Updater ()
Static Public Member Functions
static void *	start (void *pthis)
	this is the function the thread will execute
Private Types
typedef olist::const_iterator	obi
typedef std::list < dqm::UpdateObserver * >	olist
Private Attributes
DQMOldReceiver *	mui
olist	obs_
bool	observed
bool	running
pthread_t	worker

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Detailed Description

Definition at line 12 of file Updater.h.

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Member Typedef Documentation

typedef olist::const_iterator dqm::Updater::obi [private]

Definition at line 16 of file Updater.h.

typedef std::list<dqm::UpdateObserver *> dqm::Updater::olist [private]

Definition at line 15 of file Updater.h.

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Constructor & Destructor Documentation

Updater::Updater

(

DQMOldReceiver *

the_mui

)

Definition at line 7 of file Updater.cc.

References NULL, pthread_create, start(), and worker.

                                        : mui(the_mui), observed(false),
                                                  running(false)
{
  // create a thread and pass a pointer to the static function start
  pthread_create(&worker, NULL, start, (void *)this);
}

dqm::Updater::~Updater

(

)

[inline]

recommended by Benigno Gobbo to fix crash for following sequence: Configure/Enable/Halt + Configure/Enable

Definition at line 27 of file Updater.h.

References worker.

        {
          pthread_cancel( worker );
        }

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Member Function Documentation

bool dqm::Updater::checkRunning

(

)

const [inline]

Definition at line 46 of file Updater.h.

References running.

Referenced by start().

        {
          return running;
        }

void Updater::registerObserver

(

dqm::UpdateObserver *

obs

)

Definition at line 37 of file Updater.cc.

References obs_, and observed.

{
  observed = true;
  obs_.push_back(obs);
}

void Updater::request_update

(

)

Definition at line 29 of file Updater.cc.

References i, mui, obs_, observed, and DQMOldReceiver::update().

Referenced by start().

{
  mui->update();
  if(observed)
    for(obi i = obs_.begin(); i != obs_.end(); i++)
      (*i)->onUpdate();
}

void dqm::Updater::setRunning

(

)

[inline]

Definition at line 41 of file Updater.h.

References running.

Referenced by start().

        { 
          running = true; 
        }

void dqm::Updater::setStopped

(

)

[inline]

Definition at line 51 of file Updater.h.

References running.

Referenced by DQMBaseClient::haltAction().

        {
          running=false;
        }

void * Updater::start

(

void *

pthis

)

[static]

this is the function the thread will execute

Definition at line 14 of file Updater.cc.

References checkRunning(), request_update(), and setRunning().

Referenced by Updater().

{
  // We receive a pointer to the parent Updater object
  Updater *updater_pt = (Updater *)pthis;
  updater_pt->setRunning();
  while(1)
    {
      // call the updater request_update method
      updater_pt->request_update();
      if(!updater_pt->checkRunning()) break;
    }
  
  return (void *)updater_pt;
}

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Member Data Documentation

DQMOldReceiver* dqm::Updater::mui [private]

Definition at line 18 of file Updater.h.

Referenced by request_update().

olist dqm::Updater::obs_ [private]

Definition at line 19 of file Updater.h.

Referenced by registerObserver(), and request_update().

bool dqm::Updater::observed [private]

Definition at line 20 of file Updater.h.

Referenced by registerObserver(), and request_update().

bool dqm::Updater::running [private]

Definition at line 21 of file Updater.h.

Referenced by checkRunning(), setRunning(), and setStopped().

pthread_t dqm::Updater::worker [private]

Definition at line 17 of file Updater.h.

Referenced by Updater(), and ~Updater().

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The documentation for this class was generated from the following files:

• DQMServices/XdaqCollector/interface/Updater.h
• DQMServices/XdaqCollector/src/Updater.cc

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