> very recent mhttpd mangles spaces in URL encoding-decoding and I cannot create or delete entries in for 
> example "/experiment/edit on start". For example attempt to delete "/experiment/Pedestals Run" 
> produces:
> <h1>Cannot find key Experiment/edit%20on%20start/Pedestals run</h1>
> (notice "%20" instead of spaces. further navigation sometimes replaces the "%" sign with "%25" making it 
> even more mangled)
> 
> this used to work. looks like a call to URL unmangling went missing somewhere.
> K.O.

Thanks for reporting. Fixed in SVN revision 4882. Actually I outcommented the fix some time ago and forgot to 
put it back. Now I hope that this does not blow anything else...

- Stefan

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
K.O.

> I am setting up a new experiment and I added a "comment" field to "/
> Experiment/Edit on start". When I start the run, I see this field, but I
> cannot enter anything: the HTML "maxlength" is zero (or 1?). I traced this
> to mhttpd.c: if (this is a string) maxlength = key.item_size. But what is
> key.item_size for a string? The current length? If so, how do I enter a
> string that is longer than the current one (zero in case I start from
> scratch). I am stumped! K.O.

Your problem is that you created a ODB string with zero length. If you do this
through ODBEdit, a default length of 32 is used:

[local:Test:S]Edit on start>cr string Comment
String length [32]:
[local:Test:S]Edit on start>ls -l
Key name                        Type    #Val  Size  Last Opn Mode Value
---------------------------------------------------------------------------
Comment                         STRING  1     32    2s   0   RWD
[local:Test:S]Edit on start>

which then results in a maxlength of 32 as well during run start. I presume
you used mhttpd itself to create the string. Trying to reporduce this, I found
that mhttpd creates strings with zero length. I will fix this soon. Until
then, use ODBEdit to create your strings.

mhist -s 140705 -p 140707 -e "HV".

diff --git a/utils/mhist.cxx b/utils/mhist.cxx
index 930de3b..10cc6ad 100755
--- a/utils/mhist.cxx
+++ b/utils/mhist.cxx
@@ -652,7 +652,6 @@ int main(int argc, char *argv[])
             else if (strncmp(argv[i], "-s", 2) == 0) {
                strcpy(start_name, argv[++i]);
                start_time = convert_time(argv[i]);
-               do_hst_file = true;
             } else if (strncmp(argv[i], "-p", 2) == 0)
                end_time = convert_time(argv[++i]);
             else if (strncmp(argv[i], "-t", 2) == 0)

When using mhist interactively, I could not look at array data:
1) if the array is the only variable, the question "what array index to use?"
was not asked, zero was assumed,
2) even if the question was asked, the answer was ignored, zero was used.
Fixes commited to utils/mhist.c
K.O.

While working on improvements to the MIDAS history system, I understood the data
format of the MIDAS .hst files and wrote a standalone program to extract data
from them, called mhdump.

mhdump is intended to be easier to use, compared to mhist. By default it reads
and decodes all the data in the given .hst files, with options to limit the
decoding to specified events and tags, and an option to omit the event and tag
names from the output.

mhdump is completely standalone and does not require MIDAS header files and
libraries.

The mhdump source code and a description of the .hst file format are here:
http://daq-plone.triumf.ca/SR/MIDAS/utils/mhdump/

I hope people find this program useful. If you have any feedback (patches, bug
reports, requests for improvements), please post them as replies to this forum
message.

K.O.

> I hope people find this program useful. If you have any feedback (patches, bug
> reports, requests for improvements), please post them as replies to this forum
> message.

I wouldn't mind putting this into the midas distribution. Put it under utils/, add
an entry to the Makefile, and fix that warning:


mhdump.cxx: In function `int readHstFile(FILE*)':
mhdump.cxx:161: warning: comparison between signed and unsigned integer expressions

> > I hope people find this program useful. If you have any feedback (patches, bug
> > reports, requests for improvements), please post them as replies to this forum
> > message.
> 
> I wouldn't mind putting this into the midas distribution. Put it under utils/, add
> an entry to the Makefile, and fix that warning:
> 
> 
> mhdump.cxx: In function `int readHstFile(FILE*)':
> mhdump.cxx:161: warning: comparison between signed and unsigned integer expressions

Done and done.

The program mhdump, a standalone decoder for midas history files, is now in midas svn.

K.O.

> Linking CXX executable bin/mh2sql
> CMakeFiles/mh2sql.dir/utils/mh2sql.cxx.o: In function `main':
> /opt/DAQ/repos/bot/midas/utils/mh2sql.cxx:150: undefined reference to `MakeMidasHistoryODBC()'

Yes, I am in the process of changing the midas history interface and accidentally committed a version of 
mh2sql (utility for converting MIDAS history .hst files to SQL database) that uses the new interface.

This is now fixed in svn rev 4571.

The new C++ interface to the MIDAS history is in include/history.h and implementations for data storage 
using both midas .hst files and SQL (ODBC/MySQL) database are also committed (history_midas.cxx
and history_sql.cxx). The file history_odbc.cxx will be removed after some more testing of the new 
interface.

(All the new code is not activated yet, pending more testing).

K.O.

The latest version of mfe.c has a problem where poll_event() is called before
frontend_init() and this causes a crash because in poll_event() we try to access
VME before it is initialized in frontend_init(). K.O.

> The latest version of mfe.c has a problem where poll_event() is called before
> frontend_init() and this causes a crash because in poll_event() we try to access
> VME before it is initialized in frontend_init(). K.O.

Oops, that sneaked in when doing the last modification to display the frontend status. 
I refactored register_equipment() so that frontend_init() gets called before 
poll_event().

A little advertised feature of the modifications needed support the msysmon program is 
that MIDAS equipment names can support the injecting of the hostname of the system 
running the frontend at runtime (register_equipment(void)).

https://midas.triumf.ca/MidasWiki/index.php/Equipment_List_Parameters#Equipment_Name

A special string ${HOSTNAME} can be put in any position in the equipment name. It will 
be replaced with the hostname of the computer running the frontend at run-time. Note, 
the frontend_name string will be trimmed down to 32 characters.
Example usage: msysmon


EQUIPMENT equipment[] = {

  { "${HOSTNAME}_msysmon",   /* equipment name */    {
      EVID_MONITOR, 0,      /* event ID, trigger mask */
      "SYSTEM",             /* event buffer */
      EQ_PERIODIC,          /* equipment type */
      0,                    /* event source */
      "MIDAS",              /* format */
      TRUE,                 /* enabled */
      RO_ALWAYS,            /* Read when running */
      10000,                /* poll every so milliseconds */
      0,                    /* stop run after this event limit */
      0,                    /* number of sub events */
      1,                    /* history period */
      "", "", ""
    },
    read_system_load,/* readout routine */
  },
  { "" }
};

The JSON RPC branch has been merged into main MIDAS. Other than adding new functions, there are no changes to existing MIDAS functionality.

This is the current JSON RPC schema: (from the MIDAS Help page)

------------------------------------------------------------------------
Autogenerated schema for all MIDAS JSON-RPC methods
------------------------------------------------------------------------
cm_exist?      | calls MIDAS cm_exist() to check if given MIDAS program is running
               | -------------------------------------------------------
               | params   | name           | string         | name of the program, corresponding to ODB /Programs/name
               |          | unique?        | bool           | bUnique argument to cm_exist()
               | -------------------------------------------------------
               | result   | status         | integer        | return status of cm_exist()
------------------------------------------------------------------------
cm_shutdown?   | calls MIDAS cm_shutdown() to stop given MIDAS program
               | -------------------------------------------------------
               | params   | name           | string         | name of the program, corresponding to ODB /Programs/name
               |          | unique?        | bool           | bUnique argument to cm_shutdown()
               | -------------------------------------------------------
               | result   | status         | integer        | return status of cm_shutdown()
------------------------------------------------------------------------
db_copy?       | get copies of given ODB subtrees in the "save" json encoding
               | -------------------------------------------------------
               | params   | paths[]        | array of ODB subtree paths, see note on array indices
               |          |                | array of       | string 
               | -------------------------------------------------------
               | result   | data[]         | copy of ODB data for each path
               |          |                | array of       | object 
               |          | status[]       | return status of db_copy_json() for each path
               |          |                | array of       | integer
               |          | last_written[] | last_written value of the ODB subtree for each path
               |          |                | array of       | number 
------------------------------------------------------------------------
db_create?     | get copies of given ODB subtrees in the "save" json encoding
               | -------------------------------------------------------
               | params[] | array of ODB paths to be created
               |          | array of       | arguments to db_create() and db_resize()
               |          |                | path           | string  | ODB path
               |          |                | type           | integer | MIDAS TID_xxx type
               |          |                | array_length?  | integer | optional array length, default is 1
               |          |                | string_length? | integer | for TID_STRING, optional string length, default is NAME_LENGTH
               | -------------------------------------------------------
               | result   | status[]       | return status of db_create() for each path
               |          |                | array of       | integer
------------------------------------------------------------------------
db_get_values? | get values of ODB data from given subtrees
               | -------------------------------------------------------
               | params   | paths[]        | array of ODB subtree paths, see note on array indices
               |          |                | array of       | string 
               | -------------------------------------------------------
               | result   | data[]         | values of ODB data for each path, all key names are in lower case, all symlinks are followed
               |          |                | array of       | any    
               |          | status[]       | return status of db_copy_json() for each path
               |          |                | array of       | integer
               |          | last_written[] | last_written value of the ODB subtree for each path
               |          |                | array of       | number 
------------------------------------------------------------------------
db_paste?      | write data into ODB
               | -------------------------------------------------------
               | params   | paths[]        | array of ODB subtree paths, see note on array indices
               |          |                | array of       | string 
               |          | values[]       | data to be written using db_paste_json()
               |          |                | array of       | any    
               | -------------------------------------------------------
               | result   | status[]       | return status of db_paste_json() for each path
               |          |                | array of       | integer
------------------------------------------------------------------------
get_debug?     | get current value of mjsonrpc_debug
               | -------------------------------------------------------
               | params   | any            | there are no input parameters
               | -------------------------------------------------------
               | result   | integer        | current value of mjsonrpc_debug
------------------------------------------------------------------------
get_schema?    | Get the MIDAS JSON-RPC schema JSON object
               | -------------------------------------------------------
               | params   | any            | there are no input parameters
               | -------------------------------------------------------
               | result   | object         | returns the MIDAS JSON-RPC schema JSON object
------------------------------------------------------------------------
null?          | RPC method always returns null
               | -------------------------------------------------------
               | params   | any            | method parameters are ignored
               | -------------------------------------------------------
               | result   | null           | always returns null
------------------------------------------------------------------------
set_debug?     | set new value of mjsonrpc_debug
               | -------------------------------------------------------
               | params   | integer        | new value of mjsonrpc_debug
               | -------------------------------------------------------
               | result   | integer        | new value of mjsonrpc_debug
------------------------------------------------------------------------
start_program? | start MIDAS program defined in ODB /Programs/name
               | -------------------------------------------------------
               | params   | name           | string         | name of the program, corresponding to ODB /Programs/name
               | -------------------------------------------------------
               | result   | status         | integer        | return status of ss_system()
------------------------------------------------------------------------
user_example1? | example of user defined RPC method that returns up to 3 results
               | -------------------------------------------------------
               | params   | arg            | string         | example string argment
               |          | optional_arg?  | integer        | optional example integer argument
               | -------------------------------------------------------
               | result   | string         | string         | returns the value of "arg" parameter
               |          | integer        | integer        | returns the value of "optional_arg" parameter
------------------------------------------------------------------------
user_example2? | example of user defined RPC method that returns more than 3 results
               | -------------------------------------------------------
               | params   | arg            | string         | example string argment
               |          | optional_arg?  | integer        | optional example integer argument
               | -------------------------------------------------------
               | result   | string1        | string         | returns the value of "arg" parameter
               |          | string2        | string         | returns "hello"
               |          | string3        | string         | returns "world!"
               |          | value1         | integer        | returns the value of "optional_arg" parameter
               |          | value2         | number         | returns 3.14
------------------------------------------------------------------------
user_example3? | example of user defined RPC method that returns an error
               | -------------------------------------------------------
               | params   | arg            | integer        | integer value, if zero, throws a JSON-RPC error
               | -------------------------------------------------------
               | result   | status         | integer        | returns the value of "arg" parameter

K.O.

By request from Renee, I increased the MIDAS BANKLIST_MAX from 64 to 1024 and
after fixing a few buglets where YB_BANKLIST_MAX is used instead of (now bigger)
BANKLIST_MAX, I can do a full dump of ND280 FGD events (96 banks).

I also noticed that "mdump -b BANK" did not work, it turns out that it could not
handle 32bit-banks at all. This is now fixed, too.

svn rev 4624
K.O.

I converted mdump file i/o from older mdsupport library to newer midasio library 
and it can now read .mid, .mid.gz, .mid.lz4 and .mid.bz2 files. Output should be 
identical to what it printed before, if you see any differences, please report 
them here or on bitbucket. K.O.

> > > the update of mhttpd to mongoose version 6.16 was committed to the develop branch of midas.

current code looks for the mbedtls library in ../mbedtls (next to midas)

if cmake misdetects it, turn it off by setting NO_MBEDTLS (same as NO_ROOT & co)

if you do want to build mhttpd with mbedtls, do this:

cd .../midas
cd ../
git clone https://github.com/ARMmbed/mbedtls.git
cd mbedtls
git submodule update --init ### this will populate the "crypto" directory
make ### if "python2" is missing, building of test suite programs will fail, but the libraries needed for midas will be built

cd ../midas
make cmake...

K.O.

I had some quick look at the new mongoose code and didn't find anything I dislike. Did a quick test of the proxy which worked and is nice to have. 
Agree with all KO said about authentication.

So if there are no complaints, I would suggest that we move the summary of this thread into the official documentation.

Stefan

manalyzer was updated to latest version. mostly multi-threading improvements from 
Joseph and myself. K.O.

Stephan, why did you prohibit building mana.c without ROOT and HBOOK
support? I think such a configuration is valid and should be allowed.

Also, this prohibition broke the Midas Makefile, it now bombs building
mana.c. The Makefile is setup for building hmana.c with HBOOK support,
rmana.c with ROOT support (if ROOTSYS is set) and mana.c without HBOOK and
ROOT support (currently bombs on #error in mana.c).

K.O.

> Stephan, why did you prohibit building mana.c without ROOT and HBOOK
> support? I think such a configuration is valid and should be allowed.

Oops, sorry, my fault. I forgto that people use mana.c without ROOT and 
HBOOK. The reason I made the change was that people forgot the -DHVAE_HBOOK 
in their makefile. In that case, no HBOOK init is done in mana.c and the 
first histogram booking in the user code crashes HBOOK.

So please take the #error statement out of mana.c (I'm away in two hours for 
one week), but think about preventing the above mentionend problem. I don't 
know any way for the makefile or mana.c to figure out if there is any HF1 
call in the user code. Actually HF1 should return a "proper" error message 
than just crashing.

One possibility is that we put an additional layer on top of the histogram 
boooking/filling. These macros are converted to their HBOOK or ROOT 
equivalents depending on the HAVE_HBOOK/HAVE_ROOT. If none of both is 
present, the histogram booking macro can produce a runtime error. This has 
the additional advantage that users can switch from HBOOK to ROOT without 
change of their user code.