MApolloHistoMaker Class Reference

Inheritance diagram for MApolloHistoMaker:

List of all members.

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Detailed Description

create histograms for online measurement monitor. Histograms are saved into a temporary file.

Author:

sergio.didomizio@ge.infn.it

• Config example:

      module MApolloHistoMaker
      verbosity = info
      enable = true
      gh_rate = true
      ch_spectrum = true
      DataPath = /tmp/apollo
      LockFile = apollo.lock
      ConfigFile = apollo.config
      endmod
      

• Parameters (with data type and default value)
  • gh_rate [bool = true] counting rate histogram
  • ch_spectrum [bool = true] channel based voltage amplitude spectrum
  • ch_pulse [bool = true] last pulse for each existing channel
  • DataPath [string = ""] path for the root file containing histograms, the config file and the lock file (see next items). If this variable is not set, MApolloHistoMaker tries to extract it from enironment variable named APOLLO_GUI_TMPFILES. Histograms won't be dumped if neither this variable nor config file variable are defined.
  • LockFile [string = apollo.lock] this is the file that is used for communication between this class and histogram display process
  • ConfigFile [string = apollo.config] this file (written by histogram display process) contains the channel number for which histograms will be dumped

Histogram prefixed with "gh" are General Histograms, while those prefixed with "ch" are Channel-based Histogram (i.e. one separate histogram for each active channel. gh histograms are named as the config file variable name (e.g. gh_rate). ch histograms are named as the config file variable name with the channel number appended (e.g. ch_specturm_0023 for channel 23).

Public Member Functions
	MApolloHistoMaker (QSequence *s)
virtual void	Init ()
	Init method is called before event loop.
virtual QEvent *	Do (QEvent *ev)
	Doit method is called for each event, getting the event as argument.
virtual void	Done ()
	Done method is called after event loop.
Private Member Functions
bool	CreateHistograms ()
	create new histograms based on config file options
void	FillHistograms (const QEvent *event)
	fill all existing histograms with informations from current event
bool	CheckUpdate ()
	check wether someone is waiting for histograms update
void	UpdateFile ()
	update output file
void	DeleteHistograms ()
	delete all existing histograms and clear maps
void	GetListOfChannels (std::list< unsigned short > &channels)
	get (sorted) list of active channels from db
Private Attributes
std::string	fPath
std::string	fCfgFile
std::string	fLockFile
bool	fDoHistos
bool	fFirstEvent
int	fRun
int	fCurrentChannel
time_t	fLastUpdate
std::vector< unsigned short >	fLgList
TH1F *	fGhRate
TH1D *	fGhTime
	fake histogram to store timing informations
std::map< unsigned short, TH1F * >	fChSpectra
std::map< unsigned short, QEventInfo_t >	fChPulses
Classes
struct	QEventInfo_t

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Member Function Documentation

bool MApolloHistoMaker::CreateHistograms

(

)

[private]

create new histograms based on config file options

Returns:

true if at least one histogram has been created, false otherwise

bool MApolloHistoMaker::CheckUpdate

(

)

[private]

check wether someone is waiting for histograms update

Returns:

true if histogram update is being requested, false if not

An update is requested if in the directory specified by fPath there is a file named fLockFile. If this file exist the following operations are performed:

• config file (fPath/fCfgFile) is stated
• if config file has changed since the last time it has been read, it is re-read and fCurrentChannel is updated

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Member Data Documentation

std::string MApolloHistoMaker::fPath [private]

output directory path

std::string MApolloHistoMaker::fCfgFile [private]

config file name

std::string MApolloHistoMaker::fLockFile [private]

lockfile name

bool MApolloHistoMaker::fDoHistos [private]

true if at least one histogram exist

TH1F* MApolloHistoMaker::fGhRate [private]

counting rate histogram

TH1D* MApolloHistoMaker::fGhTime [private]

fake histogram to store timing informations

The meaning of each bin is:

• time of last processed event in seconds, from start run.
• sampling rate of last event
• unix time of last pulse for current channel (seconds since 1/1/1970)

std::map<unsigned short,TH1F*> MApolloHistoMaker::fChSpectra [private]

amplitude specturm

std::map<unsigned short,QEventInfo_t> MApolloHistoMaker::fChPulses [private]

last pulse

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

• /usr/local/cuore/pkg/moddaq/MApolloHistoMaker.hh
• /usr/local/cuore/pkg/moddaq/MApolloHistoMaker.cc

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