 09 Sep 2026, Konstantin Olchanski, Info, change in cm_shutdown and the Programs page
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> There was a bit of confusion on the MIDAS Programs page with programs that have
> similar names. This confusion relates to the use of bUnique in cm_shutdown() and
> cm_exist().
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 09 Sep 2026, Konstantin Olchanski, Info, added db_get_data_vec() & co
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The MIDAS RPC layer can pass std::string and std::vector data of arbitrary size.
I am adding corresponding ODB API functions to use this. Instead of taking a pointer to preallocated array
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09 Sep 2026, Konstantin Olchanski, Info, ODB links to array elements explained
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My update of db_get_data_vec() got delayed because I had to figure out
how the links to array elements work and fix a number of places
where they are not handled correctly or consistently.
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18 Sep 2026, Konstantin Olchanski, Bug Fix, odb json encoder fixes
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we have one computer that crashes regularly and produces a corrupted ODB. while
debugging it, I discovered that for some ODB corruptions and for some unexpected
ODB errors, the ODB JSON encoder will produce invalid JSON files that cannot be
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18 Sep 2026, Konstantin Olchanski, Info, mhttpd cleanup
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some cleanup of mhttpd:
- remove obsolete c-generated equipment view page (replaced by eqtable.html)
- remove support for obsolete versions of mongoose (HAVE_MONGOOSE4, HAVE_MONGOOSE6, mhttpd6)
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21 Sep 2026, Konstantin Olchanski, Info, proposed split of midas.cxx
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A split of src/midas.cxx was discussed during Stefan & Thomas R. visit to TRIUMF.
Main reason for the split is to simplify analysis using AI tools, they work best on smaller files that contain closely related
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21 Sep 2026, Konstantin Olchanski, Info, proposed split of midas.cxx
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> A split of src/midas.cxx was discussed during Stefan & Thomas R. visit to TRIUMF.
A test of split src/midas.cxx is now pushed to branch test/split-midas-cxx
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21 Sep 2026, Konstantin Olchanski, Info, proposed split of midas.cxx
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> > A split of src/midas.cxx was discussed during Stefan & Thomas R. visit to TRIUMF.
>
> A test of split src/midas.cxx is now pushed to branch test/split-midas-cxx
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24 Sep 2026, Konstantin Olchanski, Info, proposed split of midas.cxx
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> The history of at least bm.cxx seems to be screwed up. Bitbucket shows this:
> https://bitbucket.org/tmidas/midas/annotate/fa649e6e9bb7447b4da01e964c6dc14b01e64052/src/bm.cxx?at=test%2Fsplit-midas-cxx
> and CLion shows what I attached here. Most lines are tagged "Today Olchanski" which cannot be.
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29 Sep 2026, Konstantin Olchanski, Info, mhttpd URI encode and decode
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Stefan uncovered a bug in mhttpd URI decoding, the following did not work:
cd midas, cd resources, cp example.html c++.html, open http://midas/example.html (works), open c++.html and it bombs with error about "c .html" (two pluses
replaced by two spaces).
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29 Sep 2026, Konstantin Olchanski, Info, NOTICE: MIDAS Repository Host Migration
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gitlab notifications do not send email on each commit and push (like bitbucket did).
to enable this, add your email address to the gitlab "emails on push integration":
https://gitlab.triumf.ca/groups/midas/-/settings/integrations/emails_on_push/edit
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28 Oct 2026, Konstantin Olchanski, Info, bitbucket builds restored
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I restored the bitbucket builds. currently build for Ubuntu 22 and 24, Alma Linux
9 and 10. "make test" replaced by "make test-old". K.O. |
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29 Oct 2026, Konstantin Olchanski, Bug Fix, odb free_data() refactored
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I was debugging a core dump from a crash inside ODB free_data() and after
refactoring free_data(), I may have fixed a bug in merging of free data blocks.
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14 Feb 2020, Konrad Briggl, Forum, Writting Midas Events via FPGAs
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Hello Stefan,
is there a difference for the later data processing (after writing the ring buffer blocks)
if we write single events or multiple in one rb_get_wp - memcopy - rb_increment_wp cycle?
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02 Mar 2007, Kevin Lynch, Forum, event builder scalability
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> Hi there:
> I have a question if there's anybody out there running MIDAS with event builder
> that assembles events from more that just a few front ends (say on the order of
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15 Dec 2016, Kevin Giovanetti, Bug Report, midas.h error
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creating a frontend on MAC Sierra OSX 10
include the midas.h file and when compiling with XCode I get an error based on
this entry in the midas.h include
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14 Aug 2026, Julian Wollrath, Info, mplot.js: viridis colour scheme for 2D plots
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Dear all,
please do not be surprised if your 2D plots start looking different: The default
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30 Oct 2018, Joseph McKenna, Bug Report, Side panel auto-expands when history page updates
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One can collapse the side panel when looking at history pages with the button in
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31 Oct 2018, Joseph McKenna, Bug Report, Side panel auto-expands when history page updates
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> >
> >
> > One can collapse the side panel when looking at history pages with the button in
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14 Oct 2019, Joseph McKenna, Forum, tmfe.cxx - Future frontend design
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Hi,
I have been looking at the 2019 workshop slides, I am interested in the C++ future of MIDAS.
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