 18 Jun 2019, Stefan Ritt, Bug Fix, removed modbset() from mhttpd.js
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Just to make this point clear: The "write-to-odb-read-via-hotlink" was never meant to guarantee the receiving side to see each change. If changes happen
too often, updates might get lost. If one relies on the
sequence of updates, one should use direct RPC calls to the frontend or use a midas buffer and encode updates in events.
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24 Jun 2019, Stefan Ritt, Bug Report, ERROR INSTALLING 32BIT MIDAS LIBRARIES ON 64BIT HOST MACHINE
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Why don't your try the (yet undocumented) new installation procedure:
$ git clone https://bitbucket.com/tmidas/midas --recursive
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24 Jun 2019, Stefan Ritt, Bug Report, ERROR INSTALLING 32BIT MIDAS LIBRARIES ON 64BIT HOST MACHINE
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Update: "make" instead of "make linux32" should also work. I believe the "linux32" target came
from some special case at TRIUMF for some FPGA embedded linux, which is not applicable for
the Raspberry Pi.
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27 Jun 2019, Stefan Ritt, Release, midas-2019-06 with cmake and c++
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Please note that
"make cmake" / "make cmake3"
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27 Jun 2019, Stefan Ritt, Bug Report, Getting an error when trying to compile a frontend file
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Note that the example experiment compiles a simple example frontend and a root-based analyzer. If you don't have
ROOT installed, you of course cannot compile the analyzer. If you don't need the analyzer, remove it from the
Makefile/CMakeLists.txt
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08 Jul 2019, Stefan Ritt, Info, Limitations of MSL
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Sure some existing scripting languages can be used, but they fall short of a few important items in larger experiments:
- they are typically run from a local terminal in the counting house. A remote observer of the experiment has no idea which script is running and at which |
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09 Jul 2019, Stefan Ritt, Info, Limitations of MSL
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> Yes, this has been the way to do it for years...
Calling odbedit -c ... ist certainly not the most effective way, but it works. I just tried on my Mac and found that I can call odbedit about 150 times |
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10 Jul 2019, Stefan Ritt, Bug Report, mhttpd crashes when including nonexistent script in msequencer
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The bug has been fixed. It was actually in the mxml library. So you have to go to the midas/mxml
subdirectory and update that one via "git pull origin master".
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11 Jul 2019, Stefan Ritt, Bug Report, Header files missing when trying to compile rootana, roody and analyzer
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> You can confirm that you are linking against the correct ROOT by running cmake with VERBOSE=1
> and examine the linker command line to see what library link path is specified for ROOT.
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11 Jul 2019, Stefan Ritt, Bug Report, rework of mhttpd configuration
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> - this will activate the mhttpd password protection, so one would have to define a username and password
> in the .htdigest file (this is done by the mongoose web server library).
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23 Jul 2019, Stefan Ritt, Forum, How to convert C midas frontends to C++
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Did you include mfe.h as written in elog:1526 ?
Stefan |
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23 Jul 2019, Stefan Ritt, Forum, How to convert C midas frontends to C++
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Have you left any "extern C" in your frontend program or in any of the used header file. Seems
like the linker cannot find the poll_event in your frontend code. If it's there, but it's compiled
with C calling (instead of C++), the name mangling causes it to be invisible to the linker. That
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30 Jul 2019, Stefan Ritt, Forum, How to convert C midas frontends to C++ (my problem solved)
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> as a side comment, not all drivers are c++ compatible yet (e.g. mscbvr), so changes needed are small
Right. We recently switched the whole midas to c++, but we could not cover all drivers. Most of them just need some type
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30 Jul 2019, Stefan Ritt, Info, Limitations of MSL
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> Would it be possible to add something like the following?
> 343 if (!isdigit(value1_var[i]) && value1_var[i] != '.')
> 344 break;
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01 Aug 2019, Stefan Ritt, Forum, How to convert C midas frontends to C++ (my problem solved)
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>
> Ok, so the detail that I missed was that the dummy functions
>
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 05 Aug 2019, Stefan Ritt, Info, Precedence of equipment/common structure
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Today I fixed a long-annoying problem. We have in each front-end an equipment structure
which defined the event id, event type, readout frequency etc. This is mapped to the ODB
subtree
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06 Aug 2019, Stefan Ritt, Info, Precedence of equipment/common structure
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Hi Thomas,
the change only affects Eqipment/<name>/common not the Equipment/<name>/Settings.
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06 Aug 2019, Stefan Ritt, Info, Precedence of equipment/common structure
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After some internal discussion, I decided to undo my previous change again, in order not to break existing habits. Instead, I created a new function
set_odb_equipment_common(equipment, name);
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08 Aug 2019, Stefan Ritt, Suggestion, midas cmake migration
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Each CMakeLists.txt should specify which version of CMake it requires. The MIDAS CMakeLists.txt requires CMake 3.1 or later.
We deliberately stayed away from fancy cutting edge CMake features in order to make midas easier to compile. On top of that,
midas is a much simpler package compared to root, so things are not so complicated.
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08 Aug 2019, Stefan Ritt, Suggestion, midas cmake migration
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I just tried CMake 3.1.0 and it worked with midas. So I believe all versions between 3.1.0 and 3.6.1 are ok.
Actually playing around with different versions I realized that 3.0.0 is also ok, so I changed the requirement of midas down to 3.0
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