 10 Jun 2025, Konstantin Olchanski, Bug Report, Memory leak in mhttpd binary RPC code
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I confirm that MJSON_ARRAYBUFFER does not work correctly for zero-size buffers,
buffer is leaked in the destructor and copied as NULL in MJsonNode::Copy().
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 23 Jul 2025, Konstantin Olchanski, Suggestion, K.O.'s guide to new C/C++ data types
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Over the last 10 years, the traditional C/C++ data types have been
displaced by a hodgepodge of new data types that promise portability
and generate useful (and not so useful) warnings, for example:
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24 Jul 2025, Konstantin Olchanski, Suggestion, K.O.'s guide to new C/C++ data types
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> for (int i=0; i<array_of_10_elements.size(); i++)
becomes
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24 Jul 2025, Konstantin Olchanski, Bug Fix, support for large history files
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FILE history code (mhf_*.dat files) did not support reading history files bigger than about 2GB, this is now
fixed on branch "feature/history_off64_t" (in final testing, to be merged ASAP).
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14 Aug 2025, Konstantin Olchanski, Forum, How can I retrieve online data
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> I would like to know how to retrieve the online data during the experiment so
> that I can create my own custom plot. I execute my own frontend.exe to start the
> experiment. I can get a midas file after the experiment, but I am not sure about
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17 Sep 2025, Konstantin Olchanski, Suggestion, Get manalyzer to configure midas::odb when running offline
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> Lots of users like the midas::odb interface for reading from the ODB in manalyzers.
> +#include "odbxx.h"
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17 Sep 2025, Konstantin Olchanski, Bug Report, Midas no longer compiles on macOS
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> The current develop branch no longer compiles on macOS. I get lots of errors of the form
> /Users/me/midas/src/history_schema.cxx:740:4: error: unknown type name 'off64_t' ...
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22 Sep 2025, Konstantin Olchanski, Suggestion, Get manalyzer to configure midas::odb when running offline
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> I will work today on the odbxx API to make sure there are no memory leaks when you switch form one file to another. I talked to KO so he agreed that yo
then commit your proposed change of manalyzer
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22 Sep 2025, Konstantin Olchanski, Suggestion, Get manalyzer to configure midas::odb when running offline
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> > ....Before commit of this patch, can you confirm the RunInfo destructor
> > deletes this ODB stuff from odbxx? manalyzer takes object life times very seriously.
>
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22 Sep 2025, Konstantin Olchanski, Info, switch midas to next c++
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As part of discussions with Stefan during the MIDAS workshop,
an update to supported versions of c++ on different platforms.
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22 Sep 2025, Konstantin Olchanski, Info, switch midas to c++17
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Following discussions at the MIDAS workshop, we propose to move MIDAS from c++11 to c++17. There is
many new features and we want to start using some of them.
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22 Sep 2025, Konstantin Olchanski, Info, removal of ROOT support in mlogger
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Historically, building MIDAS with ROOT caused us many problems - build failures because of c++ version
mismatch, CFLAGS mismatch; run-time failures because of ROOT library mismatches; etc, etc.
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22 Sep 2025, Konstantin Olchanski, Info, obsolete mana.c removal
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Following discussions at the MIDAS workshop and the proposed removal of support for ROOT, the very obsolete mana.c
analyzer framework has reached the end of the line.
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23 Sep 2025, Konstantin Olchanski, Info, obsolete mana.c removal
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> Hi, at the LEM Experiment at PSI, we still use mana.c and would like to keep it until end of 2026, where we will enter a long shutdown.
Excellent, good to hear from you! Once we remove ROOT support rmana.o will be gone, only mana.o (no ROOT) will remain. Will this break your builds?
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23 Sep 2025, Konstantin Olchanski, Info, 64-bit time_t
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To record discussion with Stefan regarding 64-bit time_t
To remember:
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23 Sep 2025, Konstantin Olchanski, Info, long history variable names
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To record discussion with Stefan about long history variable names.
We have several requests to remove the 32-byte limit on history variable names.
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23 Sep 2025, Konstantin Olchanski, Info, switch midas to c++17
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> perhaps c++20? - std::format is an immediately useful feature. --regards, Pasha
confirmed. std::format is an improvement over K&R C printf().
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26 Sep 2025, Konstantin Olchanski, Suggestion, Get manalyzer to configure midas::odb when running offline
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> > ...I talked to KO so he agreed that yo then commit your proposed change of manalyzer
> Merged and pushed.
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06 Nov 2025, Konstantin Olchanski, Bug Report, broken scroll on midas web pages
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midas web pages that use overlays (dlgPanel, etc) are currently broken - if
overlay does not fit in the visible window, it's bottom is truncated and control
buttons like "create" and "cancel" are not visible, not clickable, page does not
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06 Nov 2025, Konstantin Olchanski, Info, switch midas to c++17
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> Following discussions at the MIDAS workshop, we propose to move MIDAS from c++11 to c++17.
There were no objections to this move.
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