 02 Dec 2008, Konstantin Olchanski, Bug Fix, Fix ss_file_size() on 32-bit Linux
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> > I now fixed this problem by using the stat64() system call for "#ifdef OS_LINUX".
> That does not work if _LARGEFILE64_SOURCE is not defined.
> #ifdef _LARGEFILE64_SOURE
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 21 Dec 2008, Konstantin Olchanski, Bug Fix, mhttpd minor bug fixes and improvements
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Committed minor bug fixes and improvements to mhttpd:
1) when generating history plots, use type "double" instead of "float" because "float" does not have enough
significant digits to plot values of large integer numbers. For example, serial numbers of T2K FGD FEB
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01 Jan 2009, Konstantin Olchanski, Info, odb "hot link" magic explored
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Here are my notes on the MIDAS ODB "hot link" function. Perhaps others can find them useful.
Using db_open_record(key,function), the user can tell MIDAS to call the specified user function when
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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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14 Jan 2009, Konstantin Olchanski, Forum, mlogger problem
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> The problem was already fixed some time ago, so please update your version from the SVN
> revision (see https://midas.psi.ch/download.html for details).
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17 Jan 2009, Konstantin Olchanski, Info, mhttpd, mlogger updates
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mhttpd and mlogger have been updated with potentially troublesome changes.
Before using these latest versions, please make a backup of your ODB. This is
svn revisions 4434 (mhttpd.c) and 4435 (mlogger.c).
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18 Feb 2009, Konstantin Olchanski, Info, odbc sql history mlogger update
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> mhttpd and mlogger have been updated with potentially troublesome changes.
> These new features are now available:
> - a "feature complete" implementation of "history in an SQL database".
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07 May 2009, Konstantin Olchanski, Info, midas misc timeout fixes
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(catching up on recent changes from t2k and pienu)
Various timeout problems fixed:
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07 May 2009, Konstantin Olchanski, Info, RPC.SHM gyration
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When using remote midas clients with mserver, you may have noticed the zero-size .RPC.SHM files
these clients create in the directory where you run them. These files are associated with the semaphore
created by the midas rpc layer (rpc_call) to synchronize rpc calls between multiple threads. This
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07 May 2009, Konstantin Olchanski, Info, mhttpd now uses mtransition
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mhttpd function for starting and stopping runs now uses cm_transition(DETACH) which spawns an
external helper program called mtransition to handle the transition sequencing. This helps with the old
problem of looking at a blank screen for a long time if some frontends take a long time to process run
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07 May 2009, Konstantin Olchanski, Bug Fix, mhttpd "Names" length
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mhttpd did not like it when the equipment "Names" arrays had different length compared to the
corresponding "Variables" arrays. These limitations are now removed.
svn rev 4469
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07 May 2009, Konstantin Olchanski, Bug Fix, Fixed mlogger run start and stop
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Fixed problems with mlogger starting and stopping runs.
Basic difficulty was with the mlogger using ASYNC transitions, which did not implement proper
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07 May 2009, Konstantin Olchanski, Info, SQL history documentation
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Documentation for writing midas history data to SQL (mysql) is now documented in midas doxygen files
(make dox; firefox doxfiles/html/index.html). The corresponding logger and mhttpd code has been
committed for some time now and it is used in production environment by the t2k/nd280 slow controls
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07 May 2009, Konstantin Olchanski, Bug Report, odbedit bad ctrl-C
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When using "/bin/bash" shell, if I exit odbedit (and other midas programs) using ctrl-C, the terminal
enters a funny state, "echo" is turned off (I cannot see what I type), "delete" key does not work (echoes
^H instead).
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07 May 2009, Konstantin Olchanski, Bug Report, mlogger duplicate event problem
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We have seen on several daq systems this problem: we start a run and observe that the number of
events written by mlogger to the output file is double the number of events actually collected. Upon
inspection of the output file, we see that every event is written twice. Restarting the run usually fixes
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15 May 2009, Konstantin Olchanski, Info, midas misc timeout fixes
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> - cm_transition() timeouts now settable from ODB (/experiment/transition timeout, transition connect timeout). Rev 4479
transition connect timeout was actually only half of that specified because of an error in computing timeout arguments to the select() system
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15 May 2009, Konstantin Olchanski, Info, midas misc timeout fixes
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> - cm_transition() timeouts now settable from ODB (/experiment/transition timeout, transition connect timeout). Rev 4479
transition connect timeout was actually only half of that specified because of an error in computing timeout arguments to the select() system
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19 May 2009, Konstantin Olchanski, Suggestion, Question about using mvmestd.h
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> The problem is: I renamed my SIS1100 devices as /dev/sis1100/xxxxx. So I have to hack the
"sis3100.c".
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21 May 2009, Konstantin Olchanski, Info, mhttpd now uses mtransition
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> mhttpd function for starting and stopping runs now uses cm_transition(DETACH) which spawns an
> external helper program called mtransition to handle the transition sequencing.
>
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02 Jun 2009, Konstantin Olchanski, Info, mhttpd now uses mtransition
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> > mhttpd function for starting and stopping runs now uses cm_transition(DETACH) which spawns an
> > external helper program called mtransition to handle the transition sequencing.
>
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