Re: New/improved iocsh debug utility functions (dbll)

[Dirk Zimoch <dirk.zimoch@psi.ch>]

On 02.03.2018 01:19, Andrew Johnson wrote:
> > dbll (list links)
> > New: List all database links to given records or fields.
> "database links_to_  given records or fields", so it's finding DB links
> that point to a particular record or field? Are you using the BKNLK list
> field that Michael added to dbCommon in 3.16? This information can be
> obtained from the DB LockSet Report command (dblsr with level=2) in all
> versions of Base, although it's fairly verbose, e.g:
>
> > epics> dblsr signal 2
> > Lock Set 5 5 members 5 refs epicsMutexId 0x156e2b0
> > signal:averaged
> > 	INP	 INLINK NPP NMS signal
> > signal
> > 	FLNK	FWDLINK NPP NMS signal:averaged
> > 	INPB	 INLINK NPP NMS signal:step
> > 	INPC	 INLINK NPP NMS signal:amplitude
> > 	INPD	 INLINK NPP NMS signal:noise
> > signal:step
> > signal:amplitude
> > signal:noise
As I have implemented it in 3.14, I do not use 3.16 features.
I go through the list of all records (as usual) and check each link 
against the argument pattern.
The 3.16. feature may help here but when using a pattern for the record 
name you still need to go through all records.
Output of an IOC with iocStats:
epics> dbll
MYIOC:FD_CNT.FLNK ==> MYIOC:FD_FREE
MYIOC:FD_FREE.INPA ==> MYIOC:FD_CNT NPP MS
MYIOC:FD_FREE.INPB ==> MYIOC:FD_MAX NPP MS
MYIOC:SCANMON_SEVR.INPA ==> MYIOC:01HZ_UPD_TIME.SEVR NPP MS
MYIOC:SCANMON_SEVR.INPB ==> MYIOC:02HZ_UPD_TIME.SEVR NPP MS
MYIOC:SCANMON_SEVR.INPC ==> MYIOC:05HZ_UPD_TIME.SEVR NPP MS
MYIOC:SCANMON_SEVR.INPD ==> MYIOC:1HZ_UPD_TIME.SEVR NPP MS
MYIOC:SCANMON_SEVR.INPE ==> MYIOC:2HZ_UPD_TIME.SEVR NPP MS
MYIOC:SCANMON_SEVR.INPF ==> MYIOC:5HZ_UPD_TIME.SEVR NPP MS
MYIOC:SCANMON_SEVR.INPG ==> MYIOC:10HZ_UPD_TIME.SEVR NPP MS
MYIOC:CALCSTATUS.INPA ==> MYIOC:SUSP_TASK_CNT.SEVR CP MS
MYIOC:CALCSTATUS.INPB ==> MYIOC:SYS_CPU_LOAD.SEVR CP MS
MYIOC:CALCSTATUS.INPC ==> MYIOC:IOC_CPU_LOAD.SEVR CP MS
MYIOC:CALCSTATUS.INPD ==> MYIOC:MEM_FREE.SEVR CP MS
MYIOC:CALCSTATUS.INPE ==> MYIOC:FD_FREE.SEVR CP MS
MYIOC:CALCSTATUS.INPH ==> MYIOC:CALINK_BROKEN.SEVR CP MS
MYIOC:CALCSTATUS.OUT ==> MYIOC:STATUS PP MS
MYIOC:HEARTBEAT.INPA ==> MYIOC:HEARTBEAT NPP NMS
MYIOC:START_CNT.INPA ==> MYIOC:START_CNT NPP NMS
MYIOC:01HZ_UPD_TIME.INPA ==> MYIOC:01HZ_MODE NPP NMS
MYIOC:02HZ_UPD_TIME.INPA ==> MYIOC:02HZ_MODE NPP NMS
MYIOC:05HZ_UPD_TIME.INPA ==> MYIOC:05HZ_MODE NPP NMS
MYIOC:10HZ_UPD_TIME.INPA ==> MYIOC:10HZ_MODE NPP NMS
MYIOC:1HZ_UPD_TIME.INPA ==> MYIOC:1HZ_MODE NPP NMS
MYIOC:2HZ_UPD_TIME.INPA ==> MYIOC:2HZ_MODE NPP NMS
MYIOC:5HZ_UPD_TIME.INPA ==> MYIOC:5HZ_MODE NPP NMS

Filtering with record pattern:
epics> dbll *CPU_LOAD
MYIOC:CALCSTATUS.INPB ==> MYIOC:SYS_CPU_LOAD.SEVR CP MS
MYIOC:CALCSTATUS.INPC ==> MYIOC:IOC_CPU_LOAD.SEVR CP MS

Filtering with field pattern:
epics> dbll *.SEVR
MYIOC:SCANMON_SEVR.INPA ==> MYIOC:01HZ_UPD_TIME.SEVR NPP MS
MYIOC:SCANMON_SEVR.INPB ==> MYIOC:02HZ_UPD_TIME.SEVR NPP MS
MYIOC:SCANMON_SEVR.INPC ==> MYIOC:05HZ_UPD_TIME.SEVR NPP MS
MYIOC:SCANMON_SEVR.INPD ==> MYIOC:1HZ_UPD_TIME.SEVR NPP MS
MYIOC:SCANMON_SEVR.INPE ==> MYIOC:2HZ_UPD_TIME.SEVR NPP MS
MYIOC:SCANMON_SEVR.INPF ==> MYIOC:5HZ_UPD_TIME.SEVR NPP MS
MYIOC:SCANMON_SEVR.INPG ==> MYIOC:10HZ_UPD_TIME.SEVR NPP MS
MYIOC:CALCSTATUS.INPA ==> MYIOC:SUSP_TASK_CNT.SEVR CP MS
MYIOC:CALCSTATUS.INPB ==> MYIOC:SYS_CPU_LOAD.SEVR CP MS
MYIOC:CALCSTATUS.INPC ==> MYIOC:IOC_CPU_LOAD.SEVR CP MS
MYIOC:CALCSTATUS.INPD ==> MYIOC:MEM_FREE.SEVR CP MS
MYIOC:CALCSTATUS.INPE ==> MYIOC:FD_FREE.SEVR CP MS
MYIOC:CALCSTATUS.INPH ==> MYIOC:CALINK_BROKEN.SEVR CP MS

*.VAL looks for links without field name as well:
epics> dbll *.VAL
MYIOC:FD_CNT.FLNK ==> MYIOC:FD_FREE
MYIOC:FD_FREE.INPA ==> MYIOC:FD_CNT NPP MS
MYIOC:FD_FREE.INPB ==> MYIOC:FD_MAX NPP MS
MYIOC:CALCSTATUS.OUT ==> MYIOC:STATUS PP MS
MYIOC:HEARTBEAT.INPA ==> MYIOC:HEARTBEAT NPP NMS
MYIOC:START_CNT.INPA ==> MYIOC:START_CNT NPP NMS
MYIOC:01HZ_UPD_TIME.INPA ==> MYIOC:01HZ_MODE NPP NMS
MYIOC:02HZ_UPD_TIME.INPA ==> MYIOC:02HZ_MODE NPP NMS
MYIOC:05HZ_UPD_TIME.INPA ==> MYIOC:05HZ_MODE NPP NMS
MYIOC:10HZ_UPD_TIME.INPA ==> MYIOC:10HZ_MODE NPP NMS
MYIOC:1HZ_UPD_TIME.INPA ==> MYIOC:1HZ_MODE NPP NMS
MYIOC:2HZ_UPD_TIME.INPA ==> MYIOC:2HZ_MODE NPP NMS
MYIOC:5HZ_UPD_TIME.INPA ==> MYIOC:5HZ_MODE NPP NMS
(OK, FLNK->VAL is a bit questionable, maybe I should change this)