 21 Mar 2019, Konstantin Olchanski, Info, Gyrations of custom pages and ODB /Custom/Path
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> In my mind only one issue remains - when we say "we will serve files from directory X", how
> to we prevent mhttpd from serving files outside this directory by using trick URLs containing ".."
> and/or other gimmicks.
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21 Mar 2019, Konstantin Olchanski, Info, Gyrations of custom pages and ODB /Custom/Path
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> Before the days of javascript and ajax and web 2.0, MIDAS introduced "custom pages" for
> building graphical display that could show "live" data from MIDAS and that could
> have buttons and controls to operate slow controls equipment, etc.
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21 Mar 2019, Konstantin Olchanski, Info, mhttpd magic urls
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> > > Here is the list of mhttpd magic URLs.
> > See additional magic URLs at the very bottom:
>
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25 Mar 2019, Konstantin Olchanski, Bug Report, mhttpd - slowcontrol frontend - multi class driver
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Fixed in https://bitbucket.org/tmidas/midas/commits/e2c4871026121ed1cc44a69b9e3e2d428a6c84d1
The link was pointing to the wrong place - going to ODB instead of staying on the same page.
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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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28 Mar 2019, Konstantin Olchanski, Bug Report, rmlogger - bk_swap( )
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> if I use 'rmlogger' to write ROOT event files after few seconds from
> START rmlogger fails with this:
>
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28 Mar 2019, Konstantin Olchanski, Bug Report, rmlogger - bk_swap( )
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> > if I use 'rmlogger' to write ROOT event files after few seconds from
> > START rmlogger fails with this:
> >
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28 Mar 2019, Konstantin Olchanski, Bug Fix, rmlogger events - double counting
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> I realized that if I use 'rmlogger' to write events in ROOT format,
> each event is counted twice;
>
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 28 Mar 2019, Konstantin Olchanski, Release, midas-2019-03-f
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the midas release 2019-03 is ready for general use.
main changes from previous releases (midas-2017-10, midas-2018-12 and midas-2019-02):
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29 Mar 2019, Konstantin Olchanski, Bug Report, rmlogger - bk_swap( )
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> #5 <signal handler called>
> #6 bk_swap (event=event
> #7 0x000244f0 in root_write (log_chn=0x17ec188, pevent=0x0, evt_size=<optimized out>) at src/mlogger.cxx:3364
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29 Mar 2019, Konstantin Olchanski, Bug Fix, rmlogger events - double counting
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>
> > BTW, I do not think the ROOT writer (and rmlogger) get much use these days ...
>
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15 Apr 2019, Konstantin Olchanski, Info, switch of MIDAS to C++
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For a long time now we have keep the core of midas (odb.c, midas.c, etc) compatible with plain C and by default
we have built the MIDAS library using the plain C compiler. Over time, we have switched most MIDAS programs
(mhttpd, mlogger, mdump, odbedit, etc) to C++ (with happy results). (and for a long time now, all of MIDAS
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15 Apr 2019, Konstantin Olchanski, Info, switch of MIDAS to C++, which C++?
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>
> With the removal of the requirement to make it possible to write MIDAS frontends in C, we can switch the MIDAS
> default build to C++ and start using C++ features in the MIDAS API (std::string, std::vector, etc).
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15 Apr 2019, Konstantin Olchanski, Info, switch of MIDAS to C++, how much C++?
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> >
> > With the removal of the requirement to make it possible to write MIDAS frontends in C, we can switch the MIDAS
> > default build to C++ and start using C++ features in the MIDAS API (std::string, std::vector, etc).
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23 Apr 2019, Konstantin Olchanski, Info, switch of MIDAS to C++, how much C++?
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> Dear Konstantin and others, our recent discussion stimulated my curiosity and I wrote a small frontend for the trigger board of our
experiment in C++.
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30 Apr 2019, Konstantin Olchanski, Info, How to convert C midas frontends to C++
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To convert a MIDAS frontend to C++ follow this checklist:
a) add #include "mfe.h" after include of midas.h and fix all compilation errors.
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06 May 2019, Konstantin Olchanski, Bug Report, rmlogger - bk_swap( )
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> > #5 <signal handler called>
> > #6 bk_swap (event=event
> > #7 0x000244f0 in root_write (log_chn=0x17ec188, pevent=0x0, evt_size=<optimized out>) at src/mlogger.cxx:3364
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11 May 2019, Konstantin Olchanski, Info, switch of MIDAS to C++, which C++?
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> [which c++]
>
> - Linux RHEL/SL/CentOS6 - gcc 4.4.7, no C++11.
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22 May 2019, Konstantin Olchanski, Release, midas-2019-03-g
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> the midas release 2019-03 is ready for general use.
first ever bug fix release on a git release branch.
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22 May 2019, Konstantin Olchanski, Info, switch of MIDAS to C++
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> switch MIDAS to C++
switch to C++ will proceed as follows:
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