EPICS Base

  1. Bug #1881563
  2. Comment #13

Comment 13 for bug 1881563

Revision history for this message
Dirk Zimoch (dirk.zimoch) wrote :

I have now fixed:
# caget from empty arrays no longer returns nonense in first element but 0.
Warning: This will break calling dbr_size_n(TYPE,COUNT) with COUNT=0 when meaning 1. Base does not do this but 3rd pary software may.
# Array records reading empty arrays now report 0 bytes read (NORD or similar)
Fixed for aai, wavevorm, subArray, aSub. There may be more (compress?) but I have not checked yet.
# dbpf can now put arrays, including empty arrays
# caput can now put empty arrays
# scalar records reading from empty arrays via db link now get INVALID/LINK alarm.
Does not work yet for CA links.

I will be on vacation next week (from now on).
I am not creating a mrege request yet as this is not complete.

I took the change for 1-element-constant input links out of this branch https://code.launchpad.net/~dirk.zimoch/epics-base/+git/epics-base/+ref/fix_zero_size_arrays