Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Fri, 30 Nov 2012 10:46:56 -0600

Hi Jack,

On 2012-11-30 Jack Smith wrote:
> 
> I am trying to look through base-3.14.*/src/misc/iocInit.c. I guess
> the only function related to caRepeater would be rsrv_init(). Then I
> take a quick look at src/rsrv/caservertask.c, but still don't see how
> the caRepeater get spawned. Could you tell me how the caRepeater is
> started during iocInit? Also what does "rsrv" mean / stand for?

As Ralph said, the repeater is started by the CA client library, so the call 
chain from iocInit() is that iocBuild() calls db/dbCa.c:dbCaLinkInit() which 
starts dbCaTask() in its own thread, and that calls ca_context_create() to 
initialize the CA client library and start the repeater if necessary.  Then 
later on iocBuild() also calls as/asDbLib.c:asInit() which can also initialize 
the CA client library via the code in as/asCa.c:asCaStart() although normally 
the dbCaLinkInit() would have taken care of that.

I don't know what the "r" in rsrv stands for either; if he's reading this Jeff 
Hill might remember...

HTH,

- Andrew
-- 
Computer science is as much about computers as astronomy is about
telescopes. -- Edsger Dijkstra

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System