 19 Mar 2019, Gennaro Tortone, Forum, assertion failed
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> > [dfe01,INFO] Slow control equipment initialized
> > dfe: src/midas.c:838: cm_msg_flush_buffer: Assertion `rp[3]=='_'' failed.
> > if I remove line 838 from midas.c (fixing message length) the problem disappear...
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28 Mar 2019, Konstantin Olchanski, Forum, assertion failed
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For the record, I am stumped by this problem. We have definitely ruled out any data overflow inside the midas message code (there are no
long messages sent). My only guess is that the frontend itself is corrupting the midas message buffer, but this corruption
must be unlikely lucky to corrupt just the "_" character (and maybe what follows it) from the "MSG_" header inside the buffer.
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 21 May 2019, Thomas Lindner, Forum, MIDAS Workshop on Aug 7
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Dear MIDAS users,
We would like to announce a third MIDAS workshop at TRIUMF on Aug 7, 2019.
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03 Jun 2019, Konstantin Olchanski, Forum, midas wiki updated to mediawiki 1.27.5
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the midas wiki was updated to the latest LTS point release 1.27.5.
Also, an installation error was fixed that prevented confirmation of new accounts (git checkout
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07 Jun 2019, Konstantin Olchanski, Forum, midas wiki updated to mediawiki 1.27.7
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the midas wiki was updated to the latest LTS point release 1.27.7, the latest (last?) security update.
mediawiki series 1.27 is now officially EOL, see
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12 Jun 2019, Marius Koeppel, Forum, Strange JS array creation
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Hello everybody,
I have a strange JS behavior. In one of my frontends I create a key in the ODB with:
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17 Jun 2019, Konstantin Olchanski, Forum, Strange JS array creation
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> db_create_key(hDB, 0, "Equipment/Switching/Variables/DATA_WRITE", TID_INT);
you can also do this from javascript, too, using the db_create rpc call, see mjsonrpc_db_create() and
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24 Jun 2019, Marius Koeppel, Forum, Strange JS array creation
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> > for (i = 0; i < lines.length; i++) {
> > modbset("/Equipment/Switching/Variables/DATA_WRITE[" + String(i) + "]", parseInt(lines[i]));
> > }
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25 Jun 2019, Konstantin Olchanski, Forum, Strange JS array creation
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> --> In the midas back-end I never created an array. I created an INT in the ODB with db_create_key(hDB, 0,
> "Equipment/Switching/Variables/DATA_WRITE", TID_INT). By using modset in javascript and parsing the string
> "/Equipment/Switching/Variables/DATA_WRITE[" + String(i) + "]" I call it like an array and it shows up like an
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26 Jun 2019, Hassan, Forum, Problem transferring fetest data from the remote frontend to the backend
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Hi again, we now have Midas installed on the Rpi (remote frontend machine) and
have managed to run Fetest on it. Now we are at a stage where we want to send
the Fetest data over to the Data Acquisition machine, which also has Midas
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26 Jun 2019, Konstantin Olchanski, Forum, Problem transferring fetest data from the remote frontend to the backend
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> Hi again, we now have Midas installed on the Rpi (remote frontend machine) and
> have managed to run Fetest on it. Now we are at a stage where we want to send
> the Fetest data over to the Data Acquisition machine ...
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03 Jul 2019, Thomas Lindner, Forum, MIDAS Workshop on Aug 7
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Dear MIDAS users,
Here's further information on the third MIDAS workshop:
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23 Jul 2019, Frederik Wauters, Forum, How to convert C midas frontends to C++
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I am moving our fe code to c++ midas with cmake. I did encounter your a) problems.
How do I solve mismatched declarations in the mfe (or other places in the midas code)? It is having issues with the midas defined BOOL/... types. This |
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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 |
23 Jul 2019, Frederik Wauters, 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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23 Jul 2019, Lukas Gerritzen, Forum, How to convert C midas frontends to C++
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Can you post the exact command that cmake executes to link sc_fe_mini (with make VERBOSE=1)?
I have noticed similar linking problems that depended on the order when linking. In my case, it
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25 Jul 2019, Frederik Wauters, 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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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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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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