Experimental Physics and
Industrial Control System

"Mark Rivers" <[email protected]> · Fri, 30 Jun 2006 12:46:03 -0500

Hi Andrei,

dbLoadTemplate uses the environment variable substitution that EPICS
provide.  My .substitutions files look like this:

file "$(CARS)/CARSApp/Db/motor.db"
{
pattern 
{P,       M,        DTYP,  C, S, DESC,                    EGU,   DIR,
VELO,   VBAS,   ACCL,  BDST,   BVEL,  BACC,   SREV,   UREV,  PREC,
DHLM,   DLLM}
{13LAB:, m1, "OMS VME58",  0, 0, "Tilt1",   degrees,   Pos,   .07,
0,     .2,     0,      1,    .2,   2000,    1.0,     4,     20,    -20}
{13LAB:, m2, "OMS VME58",  0, 1, "Tilt2",   degrees,   Pos,   .07,
0,     .2,     0,      1,    .2,   2000,    1.0,     4,     20,    -20}
{13LAB:, m3, "OMS VME58",  0, 2, "X",       mm,        Pos,   .07,
0,     .2,     0,      1,    .2,   2000,    1.0,     4,      8,     -8}
{13LAB:, m4, "OMS VME58",  0, 3, "Y",       mm,        Pos,   .07,
0,     .2,     0,      1,    .2,   2000,    1.0,     4,      8,     -8}
}

file "$(OPTICS)/opticsApp/Db/table.db"
{
pattern
{P,          Q,      T,  M0X,  M1X,    M2X,    M0Y,   M1Y,    M2Y,
M2Z,  GEOM}
{13LAB:, MON:T1, MON:t1, junk, junk,   junk,   m2,    m1,     m3,
junk,    SRI}
}

file "$(MOTOR)/motorApp/Db/sumDiff2D.db"
{
pattern
{P,      T,     SUM, DIFF,   M1DRV,    M1RBV,   M2DRV,   M2RBV,
M1STOP,   M1DONE,   M2STOP,   M2DONE,  PREC}
{13LAB:, KBV:,  pm1, pm2,    m7.VAL,   m7.RBV,  m8.VAL,  m8.RBV,
m7.STOP,  m7.DMOV,  m8.STOP,  m8.DMOV, 1}
}

file "$(SSCAN)/sscanApp/Db/scanParms.db"
{
{P=13LAB:,SCANREC=13LAB:scan1,Q=MON:T1X,POS=MON:t1.X,RDBK=MON:t1.XRB}
{P=13LAB:,SCANREC=13LAB:scan1,Q=MON:T1Y,POS=MON:t1.Y,RDBK=MON:t1.YRB}
{P=13LAB:,SCANREC=13LAB:scan1,Q=MON:T1Z,POS=MON:t1.Z,RDBK=MON:t1.ZRB}
{P=13LAB:,SCANREC=13LAB:scan1,Q=MON:T1AX,POS=MON:t1.AX,RDBK=MON:t1.AXRB}
{P=13LAB:,SCANREC=13LAB:scan1,Q=MON:T1AY,POS=MON:t1.AY,RDBK=MON:t1.AYRB}
{P=13LAB:,SCANREC=13LAB:scan1,Q=MON:T1AZ,POS=MON:t1.AZ,RDBK=MON:t1.AZRB}
} 

So CARS, OPTICS, MOTOR and SSCAN are environment variables defined in
cdCommands (vxWorks) or envPaths (other systems).  These are maintained
by the EPICS build facility through configure/RELEASE.

Note that I am loading .db files directly from the source (App/Db)
directory, rather than installing into db/, but that is just a personal
preference.

Mark

> -----Original Message-----
> From: Liyu, Andrei [mailto:[email protected]] 
> Sent: Friday, June 30, 2006 12:00 PM
> To: [email protected]
> Subject: question about dbLoadTemplate()
> 
> Hi,
> 
> Standard way to use dbLoadTemplate()is
> 1. ***st.cmd***
> cd $TOP
> dbLoadTemplate( "db/Test.substitutions")
> 
> 2. Test.substitutions has links to templates files
> ...
> file db/Test1.template ...
> file db/Test2.template ...
> 
> So Test.substitutions and templates (Test1.template and 
> Test2.template)
> files should be in the same directory (in this example top/db/ )
> 
> How can it be used if the files are in the different directories?
> 
> I found a way in vxWorks.
> For example, Test.substitutions is in
> /ade/epics/iocCommon/"IOCName"/Data
> and Test.template is in 
> /ade/epics/iocTop/R3.14.7/SystemX/R2-0/db. Then
> 
> 1. st.cmd has
> 
> SubstitutionPath=malloc( 100)
> sprintf SubstitutionPath, "/ade/epics/iocCommon/%s/Data",iocName
> nfsMount nfsServer,SubstitutionPath,"/SubPath"
> 
> TemplatePath=malloc( 100)
> sprintf TemplatePath, "/ade/epics/iocTop/R3.14.7/SystemX/R2-0/db"
> nfsMount nfsServer, TemplatePath,"/TemPath"
> 
> ...
> cd "/SubPath"
> dbLoadTemplate("Test.substitutions")
> 
> 2. Test.substitutions file has
> 
> file TemPath/Test1.template ...
> (!!! "file top/db/Test1.template ..." doesn't work)
> 
> It works. But that is spaghetti's way and I suppose it will 
> not work in
> Windows and Linux.
> 
> So question:
> Has anyone done something similar (to have template and substitutions
> files in different directories)?
> 
> Thanks, Andrei.
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System