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GLAST/LAT > DAQ and FSW > FSW > Doxygen Index > LSE / V1-3-5

Constituent: lsew     Tag: sun-gcc

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CDF_gem.h File Reference

Public interface to produce Compressed Data Format for the GEM contributor. More...

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Functions
int	CDF_gemCfg_sizeof (int level)
	Returns the size, in bytes of the GEM compression configuration needed to support the specified level.
int	CDF_gemCfg_construct (CDF_gemCfg *cfg, int level, void **mem)
	Constructs the CDF_gemCfg compression configuration.
void	CDF_gemCfg_set_min_deadtime (CDF_gemCfg *cfg, int min_deadtime)
	Sets the minimum deadtime.
int	CDF_gem_sizeof (int level, const CDF_gemCfg *cfg)
	Returns the size, in bytes of the GEM compression structure needed to support the specified level.
int	CDF_gem_construct (CDF_gem *cdf, int level, const CDF_gemCfg *cfg, const LSEW_dgmFw *dgmFw, void **mem)
	Constructs the CDF_gem compression context.
void	CDF_gem_begin (CDF_gem *cdf, CDF_gemBdy *bdy)
	Fills int the GEM portion of the datagram contribution used in when decoding an GEM event.
void	CDF_gem_update (CDF_gem *cdf, const EBF_gem *gem, unsigned int seq)
	Updates any running context.
unsigned int	CDF_gem_std_compress (CDF_gem *cdf, unsigned int *buf, unsigned int pos, const EBF_gem *gem, unsigned int seq)
	Compresses the GEM for standard zero suppressed data.
unsigned int	CDF_gem_ped_compress (CDF_gem *cdf, unsigned int *buf, unsigned int pos, const EBF_gem *gem, unsigned int seq)
	Compresses the GEM data when zero suppression has been disabled.

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Detailed Description

Public interface to produce Compressed Data Format for the GEM contributor.

Author:

JJRussell - russell@slac.stanford.edu

    CVS $Id: CDF_gem.h,v 1.3 2007/02/14 04:10:50 russell Exp $

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Function Documentation

void CDF_gem_begin (  CDF_gem *  cdf, CDF_gemBdy *  bdy )

Fills int the GEM portion of the datagram contribution used in when decoding an GEM event. Parameters: cdf  The CDF_gem compress context structure bdy  The CDF_gemBdy structure to fill

int CDF_gem_construct (  CDF_gem *  cdf, int  level, const CDF_gemCfg *  cfg, const LSEW_dgmFw *  dgmFw, void **  mem )

Constructs the CDF_gem compression context. Return values: Status  Parameters: cdf  The CDF_gem compression context structure to fill level  The maximum compression level that needs to be supported cfg  Target specific configuration parameter dgmFw  The datagram framework handle mem  Pointer to free memory pointer, return as the the updated pointer. If cdf is equal to the current contents of mem, then mem will be advanced by the size of CDF_gem, else this routine will believe that the only the variable allocation of cdf needs to be allocated.

unsigned int CDF_gem_ped_compress (  CDF_gem *  cdf, unsigned int *  buf, unsigned int  pos, const EBF_gem *  gem, unsigned int  seq )

Compresses the GEM data when zero suppression has been disabled. Returns: The updated bit write position Parameters: cdf  The GEM compressed data format context buf  The output buffer pos  The current bit offset into the output buffer buf gem  The GEM contribution seq  The event sequence number

int CDF_gem_sizeof (  int  level, const CDF_gemCfg *  cfg )

Returns the size, in bytes of the GEM compression structure needed to support the specified level. Parameters: level  The maximum compression level to support cfg  Target specific configuration

unsigned int CDF_gem_std_compress (  CDF_gem *  cdf, unsigned int *  buf, unsigned int  pos, const EBF_gem *  gem, unsigned int  seq )

Compresses the GEM for standard zero suppressed data. Returns: The next bit position to write to Parameters: cdf  The GEM's Compressed Data Format context buf  The output buffer pos  The current bit offset into the output buffer buf gem  The GEM contribution seq  The event sequence number

void CDF_gem_update (  CDF_gem *  cdf, const EBF_gem *  gem, unsigned int  seq )

Updates any running context. Parameters: cdf  The GEM's Compressed Data Format context gem  The GEM contribution seq  The event sequence number

int CDF_gemCfg_construct (  CDF_gemCfg *  cfg, int  level, void **  mem )

Constructs the CDF_gemCfg compression configuration. Return values: Status  Parameters: cfg  Target specific configuration level  The maximum compression level that needs to be supported mem  Pointer to free memory pointer, return as the the updated pointer. If cfg is equal to the current contents of mem, then mem will be advanced by the size of CDF_gemCfg, else this routine will believe that the only the variable allocation of cdf needs to be allocated.

void CDF_gemCfg_set_min_deadtime (  CDF_gemCfg *  cfg, int  min_deadtime )

Sets the minimum deadtime. Parameters: cfg  The GEM configuration parameter block min_deadtime  The minimum deadtime. For data taken off the instrument, this will be 529. Typical value for GLEAM Monte Carlo is 400

int CDF_gemCfg_sizeof (  int  level  )

Returns the size, in bytes of the GEM compression configuration needed to support the specified level. Parameters: level  The maximum compression level to support

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