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Update Release Notes

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This commit is contained in:
Andrew Johnson
2018-10-23 12:47:00 -05:00
parent ea0556e471
commit b336545853
1 changed files with 17 additions and 7 deletions
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documentation/RELEASE_NOTES.html
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<h3>Typed Device and Driver Support callbacks</h3>
<h3>Type-safe Device and Driver Support Tables</h3>
<p>Two new structures (<tt>typed_dset</tt> and <tt>typed_drvet</tt>) are added
for use instead of <tt>dset</tt> and <tt>drvet</tt>.
The existing structures are not changed.
See comments in devSup.h for usage information.</p>
<p>Type-safe versions of the device and driver support structures <tt>dset</tt>
and <tt>drvet</tt> have been added to the devSup.h and drvSup.h headers
respectively. The original structure definitions have not been changed so
existing support modules will still build normally, but older modules can be
modified and new code written to be compatible with both.</p>
<p>A helper function <tt>DBLINK* dbGetDevLink(dbCommon*)</tt> is added to fetch
a pointer to the INP or OUT field of a record.</p>
<p>The old structure definitions will be replaced by the new ones if the macros
<tt>USE_TYPED_DSET</tt> and/or <tt>USE_TYPED_DRVET</tt> are defined when the
appropriate header is included. The best place to define these is in the
Makefile, as with the <tt>USE_TYPED_RSET</tt> macro that was introduced in
Base-3.16.1 and described below. See the comments in devSup.h for a brief usage
example, or look at <a href="https://github.com/epics-modules/ipac/commit/a7e0ff4089b9aa39108bc8569e95ba7fcf07cee9">
this commit</a> to the ipac module to see a module conversion.</p>
<p>A helper function <tt>DBLINK* dbGetDevLink(dbCommon *prec)</tt> has also been
added to devSup.h which fetches a pointer to the INP or OUT field of the
record.</p>
<h3>Restore use of ledlib for VxWorks command editing</h3>