Experimental Physics and
Industrial Control System

Dirk Zimoch <[email protected]> · Fri, 2 Mar 2018 10:56:00 +0100

On 02.03.2018 01:19, Andrew Johnson wrote:

dbli (list info)
New: List all info fields matching given naming patterns.

Michael and/or Ralph have requested a command like this fairly recently,
so I am very interested in your code. Are you aware that in EPICS 7 the
tag value strings can be JSON objects and stretch over multiple lines?
This might affect how you have to show them. You can see some examples
in modules/pva2pva/testApp/testpdb-groups.db.

epics> dbli
dz:ai.autosaveFields_pass0 "HOPR LOPR HIHI HIGH LOW LOLO HHSV HSV LSV LLSV"
dz:ai.my_other_info_field "Hello EPICS"
dz:ai.a_third_info "bla bla"
dz:ao.my_info_field "Hello World"
dz:ao.autosaveFields_pass0 "HOPR LOPR HIHI HIGH LOW LOLO HHSV HSV LSV LLSV"
dz:ao.autosaveFields_pass1 "VAL"

epics> dbli autosaveFields_pass0
dz:ai.autosaveFields_pass0 "HOPR LOPR HIHI HIGH LOW LOLO HHSV HSV LSV LLSV"
dz:ao.autosaveFields_pass0 "HOPR LOPR HIHI HIGH LOW LOLO HHSV HSV LSV LLSV"

epics> dbli my_*info*
dz:ai.my_other_info_field "Hello EPICS"
dz:ao.my_info_field "Hello World"

epics> dbli *other*, *pass1
dz:ai.my_other_info_field "Hello EPICS"
dz:ao.autosaveFields_pass1 "VAL"

I have written an API function, so that other code can easily do the

same thing.

long dbNextMatchingInfo(DBENTRY *pdbentry, const char* patternlist[])

The function goes though all records, finds each info and tests its name

against a list of patterns. The list is a NULL terminated array of char*.

usage:
dbInitEntry(pdbbase, &dbentry);
while (dbNextMatchingInfo(&dbentry, patternlist) == 0) { ... }

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System