Back Midas Rome Roody Rootana
  Midas DAQ System, Page 134 of 144  Not logged in ELOG logo
ID Date Authordown Topic Subject
  655   08 Oct 2009 Exaos LeeBug ReportMultiple definition of `SqlODBC::SqlODBC()
I found there are two SqlODBC defined in different sources.
$ grep -n "class SqlODBC" src/*
src/history_odbc.cxx:282:class SqlODBC: public SqlBase
src/history_sql.cxx:293:class SqlODBC: public SqlBase
Both of them will be archived into one library libmidas.a if "HAVE_ODBC" defined. Then if you build a shared library, you will
get a link error as the following:
Linking CXX shared library lib/libmidas.so
/usr/bin/cmake -E cmake_link_script CMakeFiles/midas-shared.dir/link.txt --verbose=1
/usr/bin/c++  -fPIC   -shared -Wl,-soname,libmidas.so -o lib/libmidas.so CMakeFiles/midas-shared.dir/src/ftplib.c.o CMakeFiles/midas-shared.dir/src/midas.c.o CMakeFiles/midas-shared.dir/src/system.c.o CMakeFiles/midas-shared.dir/src/mrpc.c.o CMakeFiles/midas-shared.dir/src/odb.c.o CMakeFiles/midas-shared.dir/src/ybos.c.o CMakeFiles/midas-shared.dir/src/history.c.o CMakeFiles/midas-shared.dir/src/alarm.c.o CMakeFiles/midas-shared.dir/src/elog.c.o CMakeFiles/midas-shared.dir/opt/DAQ/repos/bot/mxml/mxml.c.o CMakeFiles/midas-shared.dir/opt/DAQ/repos/bot/mxml/strlcpy.c.o CMakeFiles/midas-shared.dir/src/history_odbc.cxx.o CMakeFiles/midas-shared.dir/src/history_sql.cxx.o 
CMakeFiles/midas-shared.dir/src/history_sql.cxx.o: In function `SqlODBC':
/opt/DAQ/repos/bot/midas/src/history_sql.cxx:200: multiple definition of `SqlODBC::SqlODBC()'
CMakeFiles/midas-shared.dir/src/history_odbc.cxx.o:/opt/DAQ/repos/bot/midas/src/history_odbc.cxx:315: first defined here
...
history_odbc.cxx:727: first defined here
collect2: ld returned 1 exit status
make[2]: *** [lib/libmidas.so] Error 1

Why is the class "SqlODBC" duplicated?
  658   09 Oct 2009 Exaos LeeBug ReportBuilding error of history_midas.cxx due to missing declaration
Platform: Debian Linux testing
Compiler: gcc 4.3.4 (Debian 4.3.4-2)
Arch: x86
Description:
  The "g++" is whining while compiling history_midas.cxx. Please see the attached log file.
This can be fixed by add "#include <cstdlib>" to the C++ source. You know, different versions
of g++ don't act the same way. I think, maybe in version 4.2 or before, g++ can automatically
include the C header "stdlib.h" (which in C++ should be <cstdlib> because of some confusion
between C and C++), but not in version 4.3 or later. I tested g++-4.4, the problem still exists.
And g++-4.2 gives no error.
Attachment 1: build-20091010.log
g++ -c -g -O2 -Wall -Wuninitialized -Iinclude -Idrivers -I../mxml -Llinux/lib -DINCLUDE_FTPLIB   -D_LARGEFILE64_SOURCE -DHAVE_MYSQL -I/usr/include/mysql -DHAVE_ODBC -DHAVE_ZLIB -DOS_LINUX -fPIC -Wno-unused-function -o linux/lib/history_midas.o src/history_midas.cxx
src/history_midas.cxx: In function 'WORD get_variable_id(DWORD, const char*, const char*)':
src/history_midas.cxx:45: error: 'atoi' was not declared in this scope
src/history_midas.cxx:47: warning: comparison between signed and unsigned integer expressions
src/history_midas.cxx:55: error: 'strchr' was not declared in this scope
src/history_midas.cxx:75: error: 'free' was not declared in this scope
src/history_midas.cxx:81: error: 'free' was not declared in this scope
src/history_midas.cxx: In function 'WORD get_variable_id_tags(const char*, const char*)':
src/history_midas.cxx:119: error: 'atoi' was not declared in this scope
src/history_midas.cxx:121: warning: comparison between signed and unsigned integer expressions
src/history_midas.cxx:127: error: 'strchr' was not declared in this scope
src/history_midas.cxx: In function 'void list_add(poor_mans_list*, const char*)':
src/history_midas.cxx:182: error: 'strlen' was not declared in this scope
src/history_midas.cxx:188: error: 'realloc' was not declared in this scope
src/history_midas.cxx:193: error: 'memcpy' was not declared in this scope
src/history_midas.cxx: In member function 'virtual int MidasHistory::hs_connect(const char*)':
src/history_midas.cxx:284: error: 'memset' was not declared in this scope
src/history_midas.cxx: In member function 'int MidasHistory::GetEventsFromOdbEvents(std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >*)':
src/history_midas.cxx:471: error: 'strchr' was not declared in this scope
src/history_midas.cxx: In member function 'int MidasHistory::GetEventsFromOdbTags(std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >*)':
src/history_midas.cxx:531: error: 'strtoul' was not declared in this scope
src/history_midas.cxx: In member function 'int MidasHistory::GetTagsFromHS(const char*, std::vector<TAG, std::allocator<TAG> >*)':
src/history_midas.cxx:778: error: 'free' was not declared in this scope
src/history_midas.cxx: In member function 'int MidasHistory::GetTagsFromOdb(const char*, std::vector<TAG, std::allocator<TAG> >*)':
src/history_midas.cxx:820: error: 'atoi' was not declared in this scope
src/history_midas.cxx:824: warning: comparison between signed and unsigned integer expressions
src/history_midas.cxx:874: error: 'strchr' was not declared in this scope
src/history_midas.cxx:903: error: 'strchr' was not declared in this scope
src/history_midas.cxx: In member function 'virtual int MidasHistory::hs_read(time_t, time_t, time_t, int, const char**, const char**, const int*, int*, time_t**, double**, int*)':
src/history_midas.cxx:975: error: 'malloc' was not declared in this scope
src/history_midas.cxx:994: error: 'memset' was not declared in this scope
src/history_midas.cxx:1006: error: 'realloc' was not declared in this scope
src/history_midas.cxx:1016: error: 'malloc' was not declared in this scope
src/history_midas.cxx:1070: error: 'free' was not declared in this scope
src/history_midas.cxx:1072: error: 'free' was not declared in this scope
make: *** [linux/lib/history_midas.o] Error 1
  663   15 Oct 2009 Exaos LeeSuggestionBuilding MIDAS using CMake
The attached zip file is the updated configurations for building MIDAS using CMake. It works with svn-r4604.
If you want to use it, please follow the steps here:

Quote:


  1. Unzip the attachment, copy CMakeLists.txt and directory "cmake" into the midas source tree.
    $ cp -rp CMakeLists.txt cmake/ <Path-to-MIDAS-tree>/
  2. Make a build dir, and change to it.
  3. Execute cmake as this
    $ cmake -DCMAKE_INSTALL_PREFIX=<path-to-install> <path-to-MIDAS-tree>
  4. Make and install

You may use 'cmake -G <generator-name>' to generate building files for Unix Makefiles, Eclipse CDT4, KDevelop3 or Xcode, etc. I didn't test with other platforms. It now works with Unix Makefiles under Linux system. Please feedback any bugs to me: Exaos.Lee(AT)gmail.com .
Attachment 1: cmake4midas.zip
  664   19 Oct 2009 Exaos LeeForumIt' better to fix this warnings
> There is no "type conversions". The compiler is whining about code like this:
>
> /* data type names */
> static char *tid_name[] = {
> "NULL",
> "BYTE",
> ...
>
> I guess we should keep the compiler happy and make them "static const char*".
>
> BTW, my compiler is SL5.2 gcc-4.1.2 and it does not complain. What's your compiler?
>
> K.O.

When I use "make" with odbedit, the generated "experim.h" also contains such codes as:
#define EXPCVADC_COMMON_STR(_name) char *_name[] = {\
"[.]",\
...
This will cause "type conversion" warnings. I hope that "odbedit" can generate codes like this:
#define EXPCVADC_COMMON_STR(_name) const char *_name[] = {\
"[.]",\
...
In fact, "const char*" is enough to suppress the warnings. Using "const char* foo=\"blarblar\"" is a good habit because it can avoid the following bugs:
char *s = "whatever";
...
strcpy(s, "Hello, this is a string longer than the initial one.");
The above code can successfully generate an executable, but it will encounter segmentation fault while executing. "const char*" means we should not change the variable in other place, which is important to suppress bugs.

Another problem, if I change the "experim.h" as I wished, new warnings appeared when the compiler parsing the following code:
status = db_create_record(hDB, 0, set_str, strcomb(expcvadc_settings_str));
Warning:
cvadcfe.c: In function ‘frontend_init’:
cvadcfe.c:144: warning: passing argument 1 of ‘strcomb’ from incompatible pointer type
  667   02 Nov 2009 Exaos LeeBug FixBuild error due to missing header
I encountered a build error as "sort undefined...". It is caused by missing C++ header <algorithm> in which "sort" is defined. It can be fixed as the attachment.

Environment:
G++: 4.3.4
Platform: Debian Linux testing

> I committed an updated lazylogger with updated documentation. The new version supports subruns and
> can save to external storage arbitrary files (i.e. odb dump files). It also moves most book keeping out of
> odb to permit handling more files on bigger storage disks.
>
> Example lazylogger scripts for castor (CERN) and dcache (TRIUMF) are in the directory "utils".
>
> The lazylogger documentation was updated to remove obsolete information and to describe the new
> functions. As usual "make dox; cd doxfiles/html; firefox index.html" or see my copy at:
>
> http://ladd00.triumf.ca/~olchansk/midas/Utilities.html#lazylogger_task
>
> svn rev 4615, 4616.
> K.O.
Attachment 1: lazylogger.diff
diff --git a/src/lazylogger.c b/src/lazylogger.c
index 34be17a..a7ba4a3 100644
--- a/src/lazylogger.c
+++ b/src/lazylogger.c
@@ -17,6 +17,7 @@ $Id$
 
 #include <vector>
 #include <string>
+#include <algorithm>
 
 #define NOTHING_TODO  0
 #define FORCE_EXIT    1
  668   02 Nov 2009 Exaos LeeSuggestionNew cmake files
Though ended with ".c", "lazylogger.c" has to be build with C++ compiler. I have 
to modify my CMakeLists.txt. 
Please see the attachment if you need it. It works with svn-r4616.
Attachment 1: cmake4midas.zip
  674   23 Nov 2009 Exaos LeeSuggestionScripts for "midas-config"
Supposing you have installed MIDAS to some directory such as "/opt/MIDAS/r4621", you have to write some Makefile as the following while building some applications based on the version installed:

Quote:
CFLAGS += -I/opt/MIDAS/r4621/include -DOS_LINUX -g -O2 -Wall -fPIC
LIBS += -lutil -lpthread -lodbc -lz
....

Why not use a script to record your MIDAS building options? When you want to build something based on it, just type something such as

Quote:
M_CFLAGS := `midas-config --cflags`
M_LIBS := `midas-config --libs`

You needn't to check your installed options each time when you build something against it. Each time you install a new version of MIDAS, you only need to update the script called 'midas-config'. I wrote a sample script named "genconf.sh" in the first zipped attachment. The 2nd "midas-config" is a sampled generated by it. Also a diff of Makefile is included. I hope it may help. Smile
Attachment 1: genc.zip
Attachment 2: midas-config
#!/bin/sh
prefix=/usr/local
cflags="-I/usr/local/include -g -O2 -Wall -Wuninitialized -DINCLUDE_FTPLIB  -DOS_LINUX -fPIC -Wno-unused-function -DHAVE_ODBC -DHAVE_ZLIB"
st_libs="-lutil -lpthread -lodbc -lz /usr/local/lib/libmidas.a"
dyn_libs="-lutil -lpthread -lodbc -lz -L/usr/local/lib -lmidas"
incdir=/usr/local/include
libdir=/usr/local/lib
svnver=r4621
platform=linux

drvdir=/usr/local/share/drivers
camacdir=/usr/local/share/drivers/camac
vmedir=/usr/local/share/drivers/vme

srcdir=/usr/local/share/src
exampledir=/usr/local/share/examples

out=""
while test $# -gt 0; do
  case "$1" in
  -*=*) optarg=/usr/local ;;
  *)    optarg= ;;
  esac

  case $1 in
      --prefix)
	  out="$out ${prefix}"
	  ;;
      --cflags|-c)
	  out="$out ${cflags}"
	  ;;
      --incdir|-dI)
	  out="$out ${incdir}"
	  ;;
      --libdir|-dL)
	  out="$out ${libdir}"
	  ;;
      --libs|--static-libs|-l)
	  out="$out ${st_libs}"
	  ;;
      --dyn-libs)
	  out="$out ${dyn_libs}"
	  ;;
      --platform)
	  out="$out ${platform}"
	  ;;
      --drvdir|-dD)
	  out="$out ${drvdir}"
	  ;;
      --camacdir|-dC)
	  out="$out ${camacdir}"
	  ;;
      --vmedir|-dV)
	  out="$out ${vmedir}"
	  ;;
      --srcdir|-dS)
	  out="$out ${srcdir}"
	  ;;
      --exampledir|-dE)
	  out="$out ${exampledir}"
	  ;;
      --version|-v)
          out="$out ${svnver}"
          ;;
      --help|-h)
	  echo "Usage: midas-config [options]"
	  echo "Options:"
	  echo "   --prefix        Display the installation prefix"
	  echo "   --cflags,-c     Display C/C++ flags using for compilation"
	  echo "   --incdir,-dI    Display midas header directory installed"
	  echo "   --libdir,-dL    Display midas library directory installed"
          echo "   --libs, -l"
	  echo "   --static-libs   Display link flags while linking with static midas library"
	  echo "   --dyn-libs      Display link flags while linking with dynamic library"
	  echo "   --platform      Display installed platform"
	  echo "   --drvdir,-dD    Display the driver directory"
	  echo "   --camacdir,-dC    Display the directory including CAMAC APIs"
	  echo "   --vmedir,-dV      Display the directory including VME APIs"
	  echo "   --srcdir,-dS      Display the source directory"
	  echo "   --exampledir,-dE  Display the examples directory"
          echo "   --version, -v  Show the subversion number"
	  echo "   --help, -h     Display this usage"
	  echo
          exit 0
	  ;;
      *)
      ### Give an error
	  echo "Unknown argument \"/usr/local\"!" 1>&2
	  echo "${usage}" 1>&2
	  exit 1
	  ;;
  esac
  shift
done

echo $out

  697   08 Apr 2010 Exaos LeeForumHow to stop a run with a timer?
I want to let the run stop and start periodically. But I looked through the ODB
and didn't find anything may help. I also checked the FAQ online and didn't find
answer either. Who can help me? Thank you.
  754   30 Mar 2011 Exaos LeeForumHow large does "bank32" support?
Reading an FADC buffer often needs large buffer size, especially while several
FADCs work together. I want to know how large a bank32 can support.
  768   24 Jun 2011 Exaos LeeSuggestionBuild MIDAS debian packages using autoconf/automake.
Here is my story. I deployed several Debian Linux boxes as the DAQ systems in our lab. But I feel it's boring to build and install midas and its related softwares (such as root) on each box. So I need a local debian software repository and put midas and its related packages in it. First of all, I need a midas debian package. After a week's study and searching, I finally finished the job. Hope you feel it useful.

All the work is attached as "daq-midas_deb.tar.gz". The detail is followed. I also created several debian packages. But it's too large to be uploaded. I havn't my own site accessible from internet. So, if you need the debian packages, please give me an accessible ftp or other similar service, then I can upload them to you.

First, I use autoconf/automake to rewrite the building system of MIDAS. You can check it this way:
1. Untar daq-midas_deb.tar.gz somewhere, assumming ~/Temp.
2. cd ~/Temp/daq-midas
3. svn co -r 5065 svn+ssh://svn@savannah.psi.ch/repos/meg/midas/trunk midas
4. svn co -r 68 svn+ssh://svn@savannah.psi.ch/repos/meg/mxml/trunk mxml
5. cp -rvp debian/autoconf/* ./
6. ./configure --help
7. ./configure <--options>
8. make && make install

Then, I created the debian packages based on the new building files. You need to install root-system package from http://lcg-heppkg.web.cern.ch/lcg-heppkg/debian/. You can build debs this way:
1. untar daq-midas_deb.tar.gz somewhere, assuming ~/Temp.
2. cd ~/Temp/daq-midas
3. svn co -r 5065 svn+ssh://svn@savannah.psi.ch/repos/meg/midas/trunk midas
4. svn co -r 68 svn+ssh://svn@savannah.psi.ch/repos/meg/mxml/trunk mxml
5. dpkg-buildpackage -b -us -uc

I split the package into serverals parts:
  • daq-midas-doc -- The documents and references
  • daq-midas-root -- the midas runtime library and utilities built with root
  • daq-midas-noroot -- the midas runtime library and utilities built without root
  • daq-midas-dev-root -- the midas devel files (headers, objects, drivers, examples) built with root
  • daq-midas-dev-noroot -- the midas devel files (headers, objects, drivers, examples) built without root

Here are the installation:
  • executalbes -- /usr/lib/daq-midas/bin
  • library and objs -- /usr/lib/daq-midas/lib
  • headers -- /usr/lib/daq-midas/include
  • sources and drivers -- /usr/share/daq-midas/
  • docs and examples -- /usr/share/doc/daq-midas
  • mdaq-config -- /usr/bin/mdaq-config

I add an auto-generated shell script -- mdaq-config. It behaves just like "root-config". You can get midas build flags and link flags this way:
gcc `mdaq-config --cflags` -c -o myfe.o myfe.c
gcc `mdaq-config --libs` -o myfe myfe.o `mdaq-config --libdir`/mfe.o

Bugs and suggestions are welcomed.

P.S. Based on debian packages, I am planing to write another script, "mdaq.py":
  • each midas experiment will be configured in a file named "mdaq.yaml"
  • mdaq.py reads the configure file and prepare the daq environment, just like "examples/experiment/start_daq.sh"
  • mdaq.py will handle "start/stop/restart/info" about the daq codes.
The attached "mdaq.py" is the old one.
Attachment 1: daq-midas_deb.tar.gz
Attachment 2: mdaq.py
#!/usr/bin/env python
'''
   Python script to handle daq sessions using MIDAS/PSI.
   Auther: Exaos Lee <Exaos DOT Lee AT gmail DOT com>
   Date:   2009-07-15
'''

import os, os.path
import sys, signal, time
from commands     import getoutput
from ConfigParser import ConfigParser
from pprint       import pprint

class mdaq:
    _codes_ = { 'MSERVER':"MIDAS Server", 'MHTTPD':"MIDAS HTTPD Server",
                'ODBEDIT':"ODB Editor",   'LOGGER':"Data Logger",
                'PROG_FE':"Frontend",   'PROG_ANA':"Analyzer" }
    _env_ = dict()

    def __init__(self,**kws):
        env = dict()
        if kws.has_key('fname') and kws['fname'] != "":
            env = self.parse_conf(kws['fname'])
        self.apply_env(env)

    def parse_conf(self, fname):
        if not os.path.isfile(fname):
            print("**WARNING** File \"%s\" does not exist!"%fname)
            return None

        conf = ConfigParser()
        conf.read(fname)
        env={'CONF_FILE':fname }
        fcpath = os.path.dirname(fname)

        sec = 'EXP_INFO' ## Parsing Experiment Information
        env['EXP_INFO'] = [ self.safe_parse(conf,sec,'Name'),
                            self.safe_parse(conf,sec,'Info'), ]
        msg = self.safe_parse(conf,sec,'DAQ_DIR')
        if msg != "" and os.path.isdir(msg):
            dpath = msg
            if not os.path.isabs(msg):
                dpath = os.path.join(os.path.abspath(fcpath),msg)
            env['DAQ_DIR'] = os.path.normpath(dpath)

        ## Parsing MIDAS configuration
        env['MIDASSYS'] = ["MIDAS System Path",
                           self.safe_parse(conf,"MIDAS","MIDASSYS")]
        if env['MIDASSYS'][1]=="": env['MIDASSYS'][1] = self.get_default_msys()

        ## Parsing Info of programs
        for key in self._codes_.keys():
            code = self.parse_prog_opt(conf, key, fpath=fcpath)
            if code:
                env[key] = [self._codes_[key], ]
                env[key].extend(code)

        port = self.safe_parse(conf, "MHTTPD","PORT")
        if port != "":
            if not env.has_key('MHTTPD'):
                env['MHTTPD'] = ["MIDAS HTTP Server",
                                 os.path.join(env['MIDASSYS'][1],"bin/mhttpd"),
                                 "-h localhost -D"]
            if "-p %s"%port not in env['MHTTPD'][2]:
                env['MHTTPD'][2] = env['MHTTPD'][2] + " -p %s"%port

        return env

    def parse_prog_opt(self, cnf, sec, fpath="./"):
        name = self.safe_parse(cnf, sec, "NAME")
        path = self.safe_parse(cnf, sec, "PATH")
        fn = os.path.join(path,name)
        if name == "": fn = ""
        elif not os.path.isabs(fn):
            fn = os.path.normpath(os.path.join(os.path.abspath(fpath),fn))
        else:
            fn = os.path.normpath(fn)
        opts = self.safe_parse(cnf, sec, "Option")
        if opts != "" or name != "":
            return [fn, opts]

        return None
 
    def safe_parse(self, cnf, sec, opt):
        try:    return cnf.get(sec,opt)
        except: return ""

    def get_default_msys(self):
        if os.environ.has_key('MIDASSYS'): return os.environ['MIDASSYS']
        return "/opt/MIDAS.PSI/Version/Current"

    def apply_env(self, daq_env=dict()):
        env = daq_env
        if not env:
            print("** WARNING** No environment defined! Using the default values. ****")
            env = {'MIDASSYS':['MIDAS System Path', ""], 'CONF_FILE':"", }
        if not env.has_key('MIDASSYS'): env['MIDASSYS'] = ['MIDAS System Path',""]
        if env['MIDASSYS'][1]=="": env['MIDASSYS'][1] = self.get_default_msys()
        def_env = {
            'MSERVER' :["MIDAS Server",
                        os.path.join(env['MIDASSYS'][1],"bin/mserver"),
                        "-D", True],
            'MHTTPD'  :["MIDAS HTTP Server",
                        os.path.join(env['MIDASSYS'][1],"bin/mhttpd"),
                        "-h localhost -D -p 8080", True],
            'ODBEDIT' :["ODB Editor",
                        os.path.join(env['MIDASSYS'][1],"bin/odbedit"),
                        "-c clean", False],
            'LOGGER'  :["Data Logger",
                        os.path.join(env['MIDASSYS'][1],"bin/mlogger"),
                        "", True],
            'PROG_FE' :["Frontend","", "", True],
            'PROG_ANA':["Analyzer","", "", True],
            'EXP_INFO':["test","The test experiment"],
            'DAQ_DIR':os.path.join(os.environ['HOME'],"online/test") }

        for key in def_env.keys():
            if not env.has_key(key): env[key] = def_env[key]

        for key in self._codes_.keys():
            if env[key][1] == "": env[key][1] = def_env[key][1]
            if env[key][2] == "": env[key][2] = def_env[key][2]

        if not os.path.isdir(env['DAQ_DIR']):
            try: os.makedirs(env['DAQ_DIR'])
            except: print("ERROR to make file")

        ## Asign default program options
        exp_opt = "-e %s"%env['EXP_INFO'][0]
        for key in ['LOGGER', 'PROG_FE', 'PROG_ANA', "MHTTPD"]:
            if exp_opt not in env[key][2]:
                env[key][2] = exp_opt + ' ' + env[key][2]
            if "-D" not in env[key][2]:
                env[key][2] = env[key][2] + ' -D'
        if exp_opt not in env['ODBEDIT'][2]:
            env['ODBEDIT'][2] = env['ODBEDIT'][2] + ' ' + exp_opt

        self._env_ = env

    def print_conf(self):
        print "\n================= DAQ Config ====================="
        for key in self._env_.keys():
            print key,": ",
            pprint(self._env_[key])

    def info(self): self.print_conf()

    ## running programs
    def getpids(self, pname):
        return [int(k) for k in getoutput("pidof %s"%pname).strip().split()]

    def kill_prog(self,pname):
        for i in self.getpids(pname): os.kill(i,signal.SIGTERM)

    def run_prog(self, prog):
        if len(prog)>=4 and not prog[3]: return

        if len(prog)>=3 and prog[1]:
            print("Starting %s: %s"%(prog[0],prog[1]))
            os.system("%s %s"%(prog[1],prog[2]))
        else:
            print("%s: no executable exist!"%prog[0])

    def get_status(self,pfile):
        msg = "Not running!"
        pids = self.getpids( os.path.basename(pfile) )
        if pids: return 'PIDs = ' + str(pids)
        return msg

    def echo_status(self,pname,pfile):
        print("%s:\n   %s\n   "%(pname,pfile)
              + self.get_status(pfile))

    ## Session manage: start, stop, status, restart

    def status(self):
        print( "\n===== Session status for experiment \"%s\" =====\n" %
               self._env_['EXP_INFO'][0] )
        for code in ['MSERVER','MHTTPD','LOGGER','PROG_FE','PROG_ANA']:
            self.echo_status(self._env_[code][0], self._env_[code][1])

    def start(self):
        ## Running mserver & mhttpd
        ms_pids = self.getpids(os.path.basename(self._env_['MSERVER'][1]))
        if not ms_pids:
            self.run_prog(self._env_['MSERVER'])
            print("Killing %s ...\n"%self._env_['MHTTPD'][0])
            self.kill_prog(self._env_['MHTTPD'][1])
        if not self.getpids(os.path.basename(self._env_['MHTTPD'][1])):
            self.run_prog(self._env_['MHTTPD'])

        ## Running FE and Analyzer
        old_path = os.getcwd()
        os.chdir( self._env_['DAQ_DIR'] )

        # Init ODB
        print("Initializing ODB for experiment %s ..." % self._env_['EXP_INFO'][0])
        self.run_prog(self._env_['ODBEDIT'])
        time.sleep(1)

        # First stop, then start ...
        self.stop()
        time.sleep(1)

        # Start FE & ANA
        self.run_prog(self._env_['PROG_FE'])
        self.run_prog(self._env_['PROG_ANA'])
        time.sleep(1)

        # Start Logger
        self.run_prog(self._env_['LOGGER'])

        os.chdir(old_path)

    def stop(self):
        for key in ["LOGGER", "PROG_FE", "PROG_ANA"]:
            if self._env_[key][1]:
                print("Killing threads:\n  %s"%self._env_[key][1])
                self.kill_prog(self._env_[key][1])

    def stop_all(self):
        self.stop()
        for key in ['MHTTPD', 'MSERVER']:
            if self._env_[key][1]:
                print("Killing threads:\n  %s"%self._env_[key][1])
                self.kill_prog(self._env_[key][1])

    def restart(self): self.start()


if __name__=='__main__':
    from optparse import OptionParser

    usage = "usage: %prog [options] <command>"
    parser = OptionParser(usage=usage, version="%prog 0.1")
    parser.add_option("-c","--config", metavar="filename",
                      help="Read config from FILENAME")
    cmds = ["start","stop","stop_all","restart","status","info"]

    (opts,args) = parser.parse_args( sys.argv[1:] )
    if not args or len(args)>2:
         parser.print_help()
         print "\nCommands:\n\t",
         pprint(cmds)
         exit()

    fcnf = "daq.conf"
    if opts.config: fcnf = opts.config

    if args[0] in cmds:
        daq = mdaq(fname=fcnf)
        exec( "daq.%s()"%args[0] )
    else:
        parser.print_help()
        print "\nCommands:\n\t",
        pprint(cmds)
  786   18 Apr 2012 Exaos LeeBug ReportBuild error with mlogger: invalid conversion from ‘void*’ to ‘gzFile’
I tried to build MIDAS under ArchLinux, failed on errors as following:
src/mlogger.cxx: In function ‘INT midas_flush_buffer(LOG_CHN*)’:
src/mlogger.cxx:1011:54: error: invalid conversion from ‘void*’ to ‘gzFile’ [-fpermissive]
In file included from src/mlogger.cxx:33:0:
/usr/include/zlib.h:1318:21: error:   initializing argument 1 of ‘int gzwrite(gzFile, voidpc, unsigned int)’ [-fpermissive]
src/mlogger.cxx: In function ‘INT midas_log_open(LOG_CHN*, INT)’:
src/mlogger.cxx:1200:79: error: invalid conversion from ‘void*’ to ‘gzFile’ [-fpermissive]
In file included from src/mlogger.cxx:33:0:
Please refer to attachment elog:786/1 for detail. There are also many warnings listed.

This error can be supressed by adding -fpermissive to CXXFLAGS. But the error message is correct."gzFile" is not equal to "void *"! C allows implicit casts between void* and any pointer type, C++ doesn't allow that. It's better to fix this error. A quick fix would be adding explicit casts. But I'm not sure what is the proper way to fix this.
Attachment 1: mlogger-err.log.gz
  794   13 Jun 2012 Exaos LeeBug ReportCannot start/stop run through mhttpd
Revision: r5286 
Platform: Debian Linux 6.0.5 AMD64, with packages from squeeze-backports 
Problem:
After building and installation, using the script 'start_daq.sh' to start
'sampleexpt'. Everything seems fine. But I cannot start a run through web. Using
'odbedit' and 'mtransition' to start/stop a run works fine. So, what may cause
such a problem?
  797   13 Jun 2012 Exaos LeeBug ReportCannot start/stop run through mhttpd
> Well, it's mhttpd who cannot start the run, not you. So what happens when you press
> the "start run" button? Any errors in midas.log or in midas messages? Is mtransition
> in your PATH?
After pressing "start run", there is a message displayed: "Run start requested". There
is no error in midas.log. And mtransition is actually in my PATH. I even looked into
"mhttpd.cxx" and found where "cm_transition" is called for starting a run. I have no
clue to grasp the reason.
  798   14 Jun 2012 Exaos LeeBug ReportCannot start/stop run through mhttpd
> > Revision: r5286 
> > Platform: Debian Linux 6.0.5 AMD64, with packages from squeeze-backports 
> > Problem:
> > After building and installation, using the script 'start_daq.sh' to start
> > 'sampleexpt'. Everything seems fine. But I cannot start a run through web. Using
> > 'odbedit' and 'mtransition' to start/stop a run works fine. So, what may cause
> > such a problem?
> 
> Well, it's mhttpd who cannot start the run, not you. So what happens when you press
> the "start run" button? Any errors in midas.log or in midas messages? Is mtransition
> in your PATH?
> 
> K.O.

I found the problem only appears when I run mhttpd in scripts, whether bash or python.
And I'm quite sure that the MIDAS environments (e.g. PATH, MIDAS_EXPTAB, MIDASSYS, etc.)
are set in such scripts. If I start mhttpd in an xterm with or without "-D", it works
fine. So, what's the difference between invoking mhttpd directly and through a script?
  1905   07 May 2020 EstelleBug ReportConflic between Rootana and midas about the redefinition of TID_xxx data types
Dear Midas and Rootana people,

We have tried to update our midas DAQ with the new TID definitions describe in https://midas.triumf.ca/elog/Midas/1871 

And we have noticed an incompatibility of this new definitions with Rootana when reading an XmlOdb in our offline analyzer. 

The problem comes from  the function FindArrayPath in XmlOdb.cxx and the comparison of bank type as strings.
Ex: comparing the strings "DWORD" and "UNINT32"

An naive solution would be to print the number associated to the type (ex: '6' for DWORD/UNINT32), but that would mean changing Rootana and Midas source code. Moreover, it does decrease the readability of the XmlOdb file. 


Thanks for your time.
Estelle
  316   27 Dec 2006 Eric-Olivier LE BIGOTForumAccess to out_info from mana.c
Hello,

Is it possible to access out_info (defined in mana.c) from another program?

In fact, out_info is now defined as an (anonymous) "static struct" in mana.c,
which it seems to me precludes any direct use in another program.  Is there an
indirect way of getting ahold of out_info?  or of the information it contains?

out_info used to be defined as a *non-static* struct, and the code I'm currently
modifying used to compile seamlessly: it now stops the compilation during
linking time, as out_info is now static and the program I have to compile
contains an "extern struct {} out_info".

Any help would be much appreciated!  I searched in vain in this forum for
details about out_info and I really need to access the information it contains!

EOL (a pure MIDAS novice)
  317   05 Jan 2007 Eric-Olivier LE BIGOTSuggestionAccess to out_info from mana.c
Would it be relevant to transform out_info into a *non-static* variable of a type
defined by a *named* struct?
Currently,  programs that  try to access out_info cannot do it anymore; and they
typically copy the struct definition from mana.c, which is not robust against future
changes in mana.c.

If mana.c could be changed in the way described above, that would be great . 
Otherwise, is it safe to patch it myself for local use?  or is there a better way of
accessing out_info from mana.c?

As always, any help would be much appreciated :)

EOL

> Hello,
> 
> Is it possible to access out_info (defined in mana.c) from another program?
> 
> In fact, out_info is now defined as an (anonymous) "static struct" in mana.c,
> which it seems to me precludes any direct use in another program.  Is there an
> indirect way of getting ahold of out_info?  or of the information it contains?
> 
> out_info used to be defined as a *non-static* struct, and the code I'm currently
> modifying used to compile seamlessly: it now stops the compilation during
> linking time, as out_info is now static and the program I have to compile
> contains an "extern struct {} out_info".
> 
> Any help would be much appreciated!  I searched in vain in this forum for
> details about out_info and I really need to access the information it contains!
> 
> EOL (a pure MIDAS novice)
  206   05 Apr 2005 Donald ArseneauBug Reportpointers and segfault in yb_any_file_rclose
I'm getting segfaults in yb_any_file_rclose (closing a file opened with
yb_any_file_ropen with type MIDAS).

I think there are bugs with freeing from uninitialized pointers my.pmagta,
my.pyh, and my.pylrl (which are only set when opening a YBOS file).  These
should be set to NULL in yb_any_file_ropen (case MIDAS).  Likewise, the MIDAS
format pointers my.pmp and my.pmrd should be NULLed for YBOS opens. 

It might be wise to also initialize the pointers in the "my" structure to null.

--Donald              
  1396   24 Sep 2018 Devin BurkeForumImplementing MIDAS on a Satellite
Hello Everybody,

I am a member of a satellite team with a scientific payload and I am considering
coordinating the payload using MIDAS. This looks to be challenging since MIDAS
would be implemented on an Xilinx Spartan 6 FPGA with minimal hardware
resources. The idea would be to install a soft processor on the Spartan 6 and
run MIDAS through UCLinux either on the FPGA or boot it from SPI Flash. Does
anybody have any comments on how feasible this would be or perhaps have
experience implementing a similar system?

-Devin
  1402   25 Sep 2018 Devin BurkeForumImplementing MIDAS on a Satellite
> > Hello Everybody,
> > 
> > I am a member of a satellite team with a scientific payload and I am considering
> > coordinating the payload using MIDAS. This looks to be challenging since MIDAS
> > would be implemented on an Xilinx Spartan 6 FPGA with minimal hardware
> > resources. The idea would be to install a soft processor on the Spartan 6 and
> > run MIDAS through UCLinux either on the FPGA or boot it from SPI Flash. Does
> > anybody have any comments on how feasible this would be or perhaps have
> > experience implementing a similar system?
> > 
> > -Devin
> 
> While some people successfully implemented a midas *client* in an FPGA softcore, the full midas 
> backend would probably not fit into a Spartan 6. Having done some FPGA programming and 
> working on satellites, I doubt that midas would be well suited for such an environment. It's 
> probably some kind of overkill. The complete GUI is likely useless since you want to minimize your 
> communication load on the satellite link.
> 
> Stefan

Thank you for your comment Stefan. We do have some hardware resources on the board such as RAM, ROM and
Flash storage so we wouldn't necessarily have to virtualize everything. Ideally we would like a
completed and compressed file to be produced on board and regularly sent back to ground without
requiring remote access. MIDAS is appealing to us because its easily automated but we wouldn't
necessarily need functions like a GUI or web interface. Part of the discussion now is whether or not a
microblaze processor would be sufficient or if we need a dedicted ARM processor.

Devin 
ELOG V3.1.4-2e1708b5