Experimental Physics and
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We are converting our legacy systems from EPICS 3.13/vxWorks to EPICS 3.14/RTEMS, I have an IOC that calls SEVCHK( ca_search(buf, &id), "ca_search failed\n"); but it results in the following error: dbContext: preemptive callback required for direct in memory interfacing of CA channels to the DB. CA.Client.Exception........... Warning: "Not supported by attached service" Context: "ca_search failed " Source File: ../caLogDataDriver.c line 119 Current Time: Thu Jan 05 2017 18:02:41.367850828 OK, so I insert this first: SEVCHK(ca_context_create(ca_enable_preemptive_callback), "caInitLogSetup() calling ca_context_create()"); But now I get this CA.Client.Exception............................................... Error: "Preemptive callback not enabled - additional threads may not join context" Context: "caInitLogSetup() calling ca_context_create()" Source File: ../caLogDataDriver.c line 106 Current Time: Thu Jan 05 2017 17:41:58.248806684 What am I missing? Do I need to supply a callback function first? The Channel Access documentation seems a bit sparse in this regard... -- Mike Westfall Control Systems Software Engineer
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ANJ, 21 Dec 2017 |
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