 01 Apr 2025, Konstantin Olchanski, Bug Fix, ODB and event buffer - release semaphore before abort() and core dump
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There is a long standing problem with ODB and event buffers. If they detect an
internal data inconsistency and cannot continue running, they call abort() to
dump core and stop.
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05 May 2025, Konstantin Olchanski, Bug Fix, Bug fix in SQL history
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A bug was introduced to the SQL history in 2022 that made renaming of variable names not work. This is now fixed.
break commit:
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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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20 Nov 2025, Konstantin Olchanski, Bug Fix, ODB update, branch feature/db_delete_key merged into develop
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In the darkside vertical slice midas daq, we observed odb corruption which I
traced to db_delete_key(). cause of corruption is not important. important is to
have a robust odb where small corruption will stay localized and will not
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 25 Nov 2025, Stefan Ritt, Bug Fix, ODB update, branch feature/db_delete_key merged into develop
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Thanks for the fixes, which I all approve.
There is still a "follow_links" in midas_c_compat.h line 70 for Python. Probably Ben has to look into that. Also
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25 Nov 2025, Konstantin Olchanski, Bug Fix, fixed db_find_keys()
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Function db_find_keys() added by person unnamed in April 2020 never worked correctly, it is now fixed,
repaired, also unsafe strcpy() replaced by mstrlcpy().
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25 Nov 2025, Konstantin Olchanski, Bug Fix, ODB update, branch feature/db_delete_key merged into develop
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> Thanks for the fixes, which I all approve.
>
> There is still a "follow_links" in midas_c_compat.h line 70 for Python. Probably Ben has to look into that. Also
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01 Dec 2025, Konstantin Olchanski, Bug Fix, mvodb updated
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I updated mvodb and test_mvodb. MIDAS ODB and JSON ODB now implement all API
functions. ReadKey, ReadDir and ReadKeyLastWritten were previously missing from
some implementations.
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03 Dec 2025, Konstantin Olchanski, Bug Fix, no more breakage in history display when panning
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In the DL experiment (unknown version of midas, likely mid-summer 2025), we see artefacts in the
history display where pieces of the data seem to be missing, there is gaps in the graphs. reloading the
page restores correct display confirming that in fact there is no gaps in the data. This made history
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05 Dec 2025, Konstantin Olchanski, Bug Fix, update of JRPC and BRPC
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With the merge of RPC_CXX code, MIDAS RPC can now return data of arbitrary large size and I am
proceeding to update the corresponding mjsonrpc interface.
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06 Jun 2003, Pierre-André Amaudruz, , Welcome
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Dear Midas users,
As you certainly aware, ELOG (Electronic Logbook) has been written
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12 Jun 2003, Pierre-André Amaudruz, , Tape handling
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- remove ss_tape_get_blockn from lazylogger.c
- add ss_tape_get_blockn to system.c
- add ss_tape_get_blockn prototype into midas.h
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17 Jun 2003, Stefan Ritt, , example experiment makefile for NT
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I have added ROOT support to midas\examples\experiment\makefile.nt. To
compile the example experiment under Windows, one needs
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26 Jun 2003, David Morris, , pthreads for Linux
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Added ss_create_thread support for Linux in system.c
Added pthread library in main make file |
02 Jul 2003, Pierre-André Amaudruz, , Midas/ROOT Analyser situation 
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The current and future situation of the Midas analyzer is summarized in the
attachment below.
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26 Jul 2003, Konstantin Olchanski, , more ODB checks in src/odb.c
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Add more checks to db_validate_key() for pkey->total_size, item_size and
num_values. Automatically correct total_size to be item_size*num_values (we
saw this corruption and tested this fix).
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26 Jul 2003, Konstantin Olchanski, , use "odbedit -C" to connect to corrupted ODB
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Add switch "-C" to odbedit to allow it to connect to corrupted ODB. Then,
depending on corruption, the user can manually remove or correct the
corrupted entries. Also, some corruption is automatically fixed by "odbedit"
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29 Jul 2003, Konstantin Olchanski, , Have to link with -lpthread?
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It appears that all midas applications are now required to link with the
pthreads library even if they do not use threads. This is caused by a
pthread_create() call from ss_thread_create() in system.c.
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30 Jul 2003, David Morris, , Have to link with -lpthread?
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The change is required to support implementation of pthreads in the Linux
compile of Midas. This was added recently. I believe pthreads is also needed
for ROOT based compiles.
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11 Aug 2003, Konstantin Olchanski, , mhttpd crash on corrupted ODB /RunInfo
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Invalid values of ODB /RunInfo/State cause mhttpd crash in
show_status_page() because of an out of bounds access to the array of state
names. Suggest this fix: remove array of state names, use existing ladder of
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