Experimental Physics and
Industrial Control System

"Jun-ichi Odagiri" <[email protected]> · Thu, 12 May 2005 10:14:01 +0900

Hi all,

We are implementing OSD-library of ITRON referring to the existing ones,
such as RTEMS, VxWorks and so forth.
In those libraries, errlogPrintf is used to print out error messages from
epicsThread, epicsEvent and epicsSignal.
On the other hand, APIs in those facilities are used to implement
errlogPrintf itself.
So, a trivial bug in the library under construction caused a loop of
recursive call like:

epicsSignal ->
errlogPrintf ->
epicsSignal ->
errlogPrintf ->
......

Though it might not happen once the OSD-library will have been
well-debugged, I guess it would be better not to use errlogPrintf in the
OSDs which are used to implement errlogPrintf itself.
Could anyone have advice or comments on this?

Thanks a lot in advance.

J. Odagiri

High Energy Accelerator Research Organization (KEK),
Oho 1-1, Tsukuba, Japan

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System