 22 Jan 2019, Stefan Ritt, Bug Report, Custom script with new MIDAS
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I just check that feature and found it's still working as expected.
On trap I fell in was that a custom page needs the <input type=submit ...> to be imbedded into a pair of
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24 Jan 2019, Konstantin Olchanski, Bug Report, Custom script with new MIDAS
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> <input type=submit name=customscript value="test">
Stefan is right, input-type-submit has to be inside a form. This type of rpc call is "old school". Today, we should
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 12 Dec 2008, Jimmy Ngai, Info, Custom page which executes custom function
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Dear All,
How can I add a button at the top of the "Status" webpage which will show a
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14 Dec 2008, Stefan Ritt, Info, Custom page which executes custom function
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> How can I add a button at the top of the "Status" webpage which will show a
> page similar to the "CNAF" one after I click on it? and how can I make a
> custom page similar to "CNAF" which allow me to call some custom funtions? I
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01 Jan 2009, Konstantin Olchanski, Info, Custom page which executes custom function
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> How can I add a button at the top of the "Status" webpage which will show a
> page similar to the "CNAF" one after I click on it? and how can I make a
> custom page similar to "CNAF" which allow me to call some custom funtions? I
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13 Jan 2009, Stefan Ritt, Info, Custom page which executes custom function
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The UDP connection you mention is only used locally for inter-process communication. When I implemented that, I
made extensive tests and found that there is never a packet being dropped. This happens for UDP only if the packet
goes over a physical network. Maybe this is different in modern Linux versions, so one should double check this
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04 Dec 2009, Stefan Ritt, Info, Custom page showing ROOT analyzer output 
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Many midas experiments work with ROOT based analyzers today. One problem there is that the graphical output of the root analyzer can only be seen through
the X server and not through the web. At the MEG experiment, we solved this problem in an elegant way: The ROOT analyzer runs in the background, using
a "virtual" X server called Xvfb. It plots its output (several panels) normally using this X server, then saves this panels every ten seconds into GIF |
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23 Sep 2013, Stefan Ritt, Info, Custom page header implemented
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Due to popular request, I implemented a custom header for mhttpd. This allows to inject some HTML code
to be shown on top of the menu bar on all mhttpd pages. One possible application is to bring back the old
status line with the name of the current experiment, the actual time and the refresh interval.
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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, 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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25 Jul 2017, Stefan Ritt, Info, Current git repository "develop" branch broken
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Dear all,
we are currently undergoing major modifications in the way mhttpd is working. I realized that
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10 Mar 2004, Jan Wouters, , Creation of secondary Midas output file.
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Dear Midas Team,
I have run into a problem with Midas and was wondering if you could explain what I
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10 Mar 2004, Stefan Ritt, , Creation of secondary Midas output file.
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Dear Jan,
I had a look at your code. You create a gPhysicsEventHeader array, fill it, and expect the
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11 Mar 2004, Renee Poutissou, , Creation of secondary Midas output file.
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Jan ,
Do you need to log this stage 1 output? If not, you would use the
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16 Sep 2024, Marius Köppel, Bug Report, Crash using ODB watch
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Hi all,
last week I was running MIDAS with the commit 3ad98c5. Today I updated MIDAS and now all my watch functions are crashing. Attached I have a minimal example |
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16 Sep 2024, Stefan Ritt, Bug Report, Crash using ODB watch
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The answer is in the error message: „Object went out of scope“. When your frontent_init() exits, the odb objects are destroyed. When you get a callback,
it‘s linked to the
destroyed object. This is like if you have a local string and pass a reference to that string in the return of the function.
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16 Sep 2024, Marius Koeppel, Bug Report, Crash using ODB watch
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This is not the case here. Note that the error message: "Callback received for a midas::odb object which went out of scope" is not called! The segmentation
fault happens later line 96.
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16 Sep 2024, Stefan Ritt, Bug Report, Crash using ODB watch
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Well, the object *went* out of scope. For my code it‘s hard to realize this, so the error reporting is poor. Also the first object should have the same
problem. Just by accident that it does not crash.
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16 Sep 2024, Marius Koeppel, Bug Report, Crash using ODB watch
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Okay, but this is then a big issue IMO. For Mu3e we do this in every frontend and I also checked again all of these watches are broken at the moment (with
commit 3ad98c5 they worked).
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