 22 Oct 2013, Konstantin Olchanski, Info, audit of db_get_record()
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Record-oriented ODB functions db_create_record(), db_get_record(), db_check_record() and
db_set_record() require special attention to the consistency between their "C struct"s (usually defined in
midas.h), their initialization strings (usually defined in midas.h) and the contents of ODB.
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 25 Oct 2013, Konstantin Olchanski, Info, MacOS select() problem
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> The following code found in mhttpd does not work on MacOS (BSD UNIX). ...
Because of this problem, on MacOS, run transitions can get stuck forever - most timeouts do not work. (Specifically, recv_string() never times out)
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06 Nov 2013, Stefan Ritt, Info, midas programs "auto start", etc
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> "programs auto start" : works but has strange interactions and side effects, do not use it.
> "programs auto stop" : works, can be used to stop programs at the end of run (but what for?)
> "programs auto restart" : works, seems to work correctly, can be used to auto restart mlogger, frontends,
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28 Nov 2013, Konstantin Olchanski, Info, Audit of fixed size arrays
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In one of the experiments, we hit a long time bug in mdump - there was an array of 32 equipments and if
there were more than 32 entries under /equipment, it would overrun and corrupt memory. Somehow this
only showed up after mdump was switched to c++. The solution was to use std::vector instead of fixed
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16 Dec 2013, Konstantin Olchanski, Info, MIDAS on ARM
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I added MIDAS Makefile rules for building ARM binaries: "make linuxarm" and "make cleanarm" will create
(and clean) object files, libraries and executables under "linux-arm" using the TI Sitara ARM SDK or the
Yocto SDK ARM cross-compilers (GCC 4.7.x and 4.8.x respectively). (Makefile rules for building PPC
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17 Dec 2013, Stefan Ritt, Info, IEEE Real Time 2014 Call for Abstracts
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Hello,
I'm co-organizing the upcoming Real Time Conference, which covers also the field of data acquisition, so it might be interesting for people working
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16 Jan 2014, Konstantin Olchanski, Info, MIDAS and "international characters", UTF-8 and Unicode.
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I made some tests of MIDAS support for "international characters" and we seem to be in a reasonable
shape.
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31 Jan 2014, Stefan Ritt, Info, Separation of MSCB subtree
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Since several projects at PSI need MSCB but not MIDAS, I decided to separate the two repositories. So if you
need MIDAS with MSCB support inside mhttpd, you have to clone MIDAS, MXML and MSCB from bitbucket
(or the local clone at TRIUMF) as described in
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12 Feb 2014, Stefan Ritt, Info, Custom page header implemented
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As reported in the bug tracker, the proposed header does not work if no specific (= different from the default 60 sec.) update period is specified,
since then no cookie is present. Here is the updated code which works for all cases:
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18 Feb 2014, Konstantin Olchanski, Info, Separation of MSCB subtree
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> Since several projects at PSI need MSCB but not MIDAS, I decided to separate the two repositories. So if you
> need MIDAS with MSCB support inside mhttpd, you have to clone MIDAS, MXML and MSCB from bitbucket
> (or the local clone at TRIUMF) as described in
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18 Feb 2014, Konstantin Olchanski, Info, Custom page header implemented
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I am not sure what to do with the javascript snippet - I understand it should be somehow connected to /Custom/Header, but if I create the /Custom/Header
string, I cannot put this snippet
into this string using odbedit - if I try to cut&paste it into odbedit, it is truncated to the first line - nor using the mhttpd odb editor - when I cut&paste |
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19 Feb 2014, Stefan Ritt, Info, Custom page header implemented
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> I am not sure what to do with the javascript snippet
Just read elog:908, it tells you to put this into a file, name it header.html for example, and put into the ODB:
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21 Feb 2014, Konstantin Olchanski, Info, Javascript ODBMLs(), modified ODBMCopy() JSON encoding
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I made a few minor modifications to the ODB JSON encoder and implemented a javascript "ls" function to
report full ODB directory information as available from odbedit "ls -l" and the mhttpd odb editor page.
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12 Mar 2014, Andreas Suter, Info, Windows support droped?
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In the old SVN midas world it was typically such that the Windows dll's and
exe's were ready to be used when checking out. I am not so sure this is the case
for the current version, since when I use the packed dll's and exe's (e.g.
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14 Mar 2014, Konstantin Olchanski, Info, midas wiki updated to mediawiki 1.22.4
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The midas wiki at https://midas.triumf.ca was updated to mediawiki 1.22.4 - the latest production version.
If you see any problems, please report them to this elog. K.O. |
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14 Mar 2014, Konstantin Olchanski, Info, Windows support droped?
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> In the old SVN midas world it was typically such that the Windows dll's and
> exe's were ready to be used when checking out.
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17 Mar 2014, Stefan Ritt, Info, Windows support droped?
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> The Windows executables are no longer included in the midas git repository. Old versions are still available in
> the git repository - they got pulled in during conversion from svn.
>
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17 Mar 2014, Konstantin Olchanski, Info, ODB JSON support
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> > > odbedit can now save ODB in JSON-formatted files.
> encode NaN, Inf and -Inf as JSON string values "NaN", "Infinity" and "-Infinity". (Corresponding to the respective Javascript values).
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11 Jul 2014, Konstantin Olchanski, Info, MIDAS high speed test
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We have tested operation of MIDAS using a 10GigE network connection. Using a dummy frontend
generating fake data, we can record MIDAS data to disk at at least 700 Mbytes/sec as reported by
the MIDAS status page.
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06 Aug 2014, Konstantin Olchanski, Info, MIDAS high speed test
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> We have tested operation of MIDAS using a 10GigE network connection. Using a dummy frontend
> generating fake data, we can record MIDAS data to disk at at least 700 Mbytes/sec as reported by
> the MIDAS status page.
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