 13 Jan 2009, Stefan Ritt, Forum, mlogger problem
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> Sorry for being vague. I cleaned up the ODB, but it doesn't seem to be the
> problem. Here is a sample run of mlogger and gdb:
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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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14 Jan 2009, Stefan Ritt, Info, odb "hot link" magic explored
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[quote="KO"]note 1: I do not completely understand the ss_suspend_xxx() stuff. The best I can tell is it creates a number of udp sockets bound to the local
host and at least one udp rpc receive socket ultimately connected to the cm_dispatch_rpc() function.[/quote]
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 20 Jan 2009, Stefan Ritt, Info, Subrun scheme implemented
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A new "subrun" scheme has been implemented in mlogger to split a big data file into several individual data files. This feature might be helpful if a data
file from a single run gets too large (>4 GB for example) and if shorter runs are not wanted for efficiency reasons. The scheme works as follows:
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25 Jan 2009, Stefan Ritt, Info, Subrun scheme implemented
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[quote="Renee Poutissou"]I have tested the new subrun functionality a bit more and I have two observations. First, it seems to work on a basic level, i.e.
subruns are created, which are equal in size. However, I can't relate their size to the byte limit set in the ODB.[/quote]
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24 Mar 2009, Stefan Ritt, Forum, Analyzer gets killed cm_watchdog
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Hi,
your log script sound to me like the analyzer either got into an infinite loop or
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06 May 2009, Stefan Ritt, Forum, MIDAS mhttpd custom page questions 
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> 1) I display the status of the run with <odb src="/Runinfo/State">, but it
> returns numbers which is not user friendly. How can I make something
> like "Running" with green background and "Stopped" with red background in the
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06 May 2009, Stefan Ritt, Forum, MIDAS mhttpd custom page questions
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> I have one more question. I use <odb src="odb field" edit=1> to display an
> editable ODB value, but how can I show this value in hexadecimal?
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18 May 2009, Stefan Ritt, Suggestion, Question about using mvmestd.h
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[quote="Exaos Lee"]The "mvmestd.h" uses the following function to open a VME device:
[CODE]int mvme_open(MVME_INTERFACE **vme, int idx)[/CODE]
I found that the "driver/vme/sis3100/sis3100.c" uses the implementation as:
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04 Jun 2009, Stefan Ritt, 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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04 Jun 2009, Stefan Ritt, Info, RPC.SHM gyration
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> Right now, MIDAS does not have an abstraction for "local multi-thread mutex" (i.e. pthread_mutex & co) and mostly uses global semaphores
> for this task (with interesting coding results, i.e. for multithreaded locking of ODB). Perhaps such an abstraction should be introduced?
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05 Jun 2009, Stefan Ritt, Bug Report, mhttpd command line experiment specifying
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> Not sure how the rest of you specify mhttpd to work with multiple experiments on
> one machine, but it would seem not the same as me ;-)
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25 Jun 2009, Stefan Ritt, Bug Report, TR_STARTABORT transition, mlogger duplicate event problem
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> Stefan suggested implementing a new transition, TR_STARTABORT, issued if TR_START fails. mlogger can use it to cleanup open files, etc, similar to TR_STOP.
>
> This is now implemented. In mlogger, TR_STARTABORT is similar to TR_STOP, but deletes open output files and does not save end-of-run information into |
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25 Jun 2009, Stefan Ritt, Forum, Frontend and manual trigger question
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> I would like to add manual trigger capability and so I added the EQ_MANUAL_TRIG
> flag to the "CAEN" equipment type but the problem is that the framework calls
> directly the readout function on "Midas manual trigger". To trigger manually the
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25 Jun 2009, Stefan Ritt, Bug Report, TR_STARTABORT transition, mlogger duplicate event problem
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> Are you sure? Only clients that register themselves to receive the TR_STARTABORT transition (via cm_register_transition()) will receive this transition.
>
> As of now, the only client that registers and receives this transition is mlogger.
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03 Aug 2009, Stefan Ritt, Forum, How to distinguish the status and value returned from "mvme_read_value(...)"
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[quote="Exaos Lee"]The definition of mvme_read_value is as the following:
[CODE]unsigned int EXPRT mvme_read_value(MVME_INTERFACE * vme, mvme_addr_t vme_addr);
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03 Sep 2009, Stefan Ritt, Forum, Timeout during run transition
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> Dear All,
>
> I'm using SL5 and MIDAS rev 4528. Occasionally, when I stop a run in odbedit,
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03 Sep 2009, Stefan Ritt, Forum, Why should we use "INLINE" here?
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[quote="Exaos Lee"]There are many "INLINE" definitions in "include/*.h". Both GNU C and C99 permit using inline functions. I still wonder why. :-)[/quote]
The INLINE statements are a relict from times where a subroutine call was in the order of a few microseconds. This was when you probably were pretty young, |
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03 Sep 2009, Stefan Ritt, Suggestion, Could not create strings other than 32 characters with odbedit -c "..." command
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> Hi,
> I am writing shell scripts to create some tree structure in an ODB. When
> creating an array of strings, the default length of each string element is 32
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03 Sep 2009, Stefan Ritt, Bug Report, Prompt problem about odbedit
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> I tried to use odbedit to set the "/System/Prompt" to "%h:%e:%s %p> " and got a
> problem: pressing "Return" doesn't work any more. But "[%h:%e:%s]%p> " works fine.
> Please see the attachment.
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