Coda

CODA is JLAB data aquisition system software. CLAS version of CODA has some differences and described in current section.

dac directory

Core CODA packages.

proc_thread

Original CODA's second readout list is running as a thread, called 'proc_thread'. It can be run on main host or on pmc co-processor. Main files is 'main/cinclude/roc_process.c'. Main function started as a thread is

void proc_thread(BIGPROC *bigprocptrin, unsigned int offsetin)

where BIGPROC structure contains control parameters including pointers to the input (BIGBUF *gbigBuffer) and output (BIGBUF *gbigBuffer1) big buffers.

write_thread

Last component in coda_roc running as a thread. Main file is 'dac.s/roc_network.c'. Main function started as a thread is

write_thread(BIGNET *bignetptrin, unsigned int offsetin)

where BIGNET structure contains control parameters including pointers to the input (BIGBUF *gbigBuffer) big buffer;

rc directory (run control)

Uses MOTIF as graphics and ACE3.1 as communication package, all sources are available in subdirectories /cg, /motif and /sase3.1. Run control code resides in subdirectory /runControl. Subdirectory /Variables contains some generic stuff, for example daqData contains operators overloading etc.

/rcClient contains run control client library functions in /src.s and client program example in /main. Library has following structure:

rcClient <- rccDaqData <- codaRcCallback

/rcServer contains run control server library in subdirectories /Components.s, /Constants.s, /Network.s, /Transitioners.s and /src.s, and main program in /main. Most important classes are in /Components.s:

daqRun - 
  |
  |-- rcsAnaLogVarWriter
  |-- rcsConfFileNameWriter
  |-- rcsDaqData
  |-- rcsDataLimitWriter
  |-- rcsEvLimitWriter
  |-- rcsLogFileDesWriter
  |-- rcsNumEvTrigger
  |-- rcsNumLongTrigger
  |-- rcsRunNumberWriter
  |-- rcsTokenIntervalWriter
  |-- rcsUpdateIWriter
  |
  |-- dbaseReader - database access