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Release notes for PUTF/RPRO update

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Andrew Johnson
2018-08-02 17:00:57 -05:00
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<h3>Propagate PUTF across Asynchronous record processing</h3>
<p>The IOC contains a mechanism involving the PUTF and RPRO fields of each
record to ensure that if a record is busy when it receives a put to one of its
fields, the record will be processed again to ensure that the new field value
has been correctly acted on. Until now that mechanism only worked if the put was
to the asynchronous record itself, so puts that were chained from some other
record via a DB link did not cause reprocessing.</p>
<p>In this release the mechanism has been extended to propagate the PUTF state
across DB links until all downstream records have been reprocessed. Some
additional information about the record state can be shown by setting the TPRO
field of an upstream record, and even more trace data is displayed if the
debugging variable <tt>dbAccessDebugPUTF</tt> is set in addition to TPRO.</p>
<h3>Restore use of ledlib for VxWorks command editing</h3>
<p>The epicsReadline refactoring work described below unfortunately disabled the