ID |
Date |
Author![down down](down.png) |
Topic |
Subject |
641
|
07 Sep 2009 |
Exaos Lee | Forum | deprecated conversion from string constant to ‘char*’ |
I encountered many warning while building MIDAS (svn r4556). Please see the
attached log file. Most of them are caused by type conversion from string to
"char*".
Though I can ignore all the warning without any problem, I still hate to see
them. :-) |
647
|
27 Sep 2009 |
Exaos Lee | Forum | deprecated conversion from string constant to ‘char*’ |
> 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.
Using built-in specs.
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.3.4-2' --with-
bugurl=file:///usr/share/doc/gcc-4.3/README.Bugs --enable-
languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared --enable-multiarch -
-enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-
gettext --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.3
--program-suffix=-4.3 --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --
enable-mpfr --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --
host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.3.4 (Debian 4.3.4-2) |
648
|
29 Sep 2009 |
Exaos Lee | Bug Report | Error invoking 'odbedit': db_validate_size |
Revision: r4567
Error output:
$ odbedit -e expcvadc
odbedit: /opt/DAQ/repos/bot/midas/src/odb.c:651: db_validate_sizes: Assertion `sizeof(EQUIPMENT_INFO) == 400' failed.
zsh: abort odbedit -e expcvadc
|
649
|
29 Sep 2009 |
Exaos Lee | Bug Report | Error invoking 'odbedit': db_validate_size |
It seems to be fixed in svn-r4568:
-----------------------------------------------------------------------
r4568 | olchanski | 2009-09-27 23:56:39 +0800 (日, 27 9月 2009) | 5 lines
mhttpd: compile using the C++ compiler.
mhttpd: fix wrong initialization of /History/ODBC_DSN
odb.c: size of EQUIPMENT_INFO has changed.
Makefile: use "-O2" compiler flag instead of "-O3" - to fix SL5 gcc crash (ICE)
But another compiling error:
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()'
|
655
|
08 Oct 2009 |
Exaos Lee | Bug Report | Multiple 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 Lee | Bug Report | Building 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.
|
663
|
15 Oct 2009 |
Exaos Lee | Suggestion | Building 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: |
- Unzip the attachment, copy CMakeLists.txt and directory "cmake" into the midas source tree.
$ cp -rp CMakeLists.txt cmake/ <Path-to-MIDAS-tree>/ - Make a build dir, and change to it.
- Execute cmake as this
$ cmake -DCMAKE_INSTALL_PREFIX=<path-to-install> <path-to-MIDAS-tree> - 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 . |
664
|
19 Oct 2009 |
Exaos Lee | Forum | It' 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 Lee | Bug Fix | Build 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. |
668
|
02 Nov 2009 |
Exaos Lee | Suggestion | New 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. |
674
|
23 Nov 2009 |
Exaos Lee | Suggestion | Scripts 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 Smile](icons/smile.png) |
697
|
08 Apr 2010 |
Exaos Lee | Forum | How 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 Lee | Forum | How 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 Lee | Suggestion | Build 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. |
786
|
18 Apr 2012 |
Exaos Lee | Bug Report | Build 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. |
794
|
13 Jun 2012 |
Exaos Lee | Bug Report | Cannot 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 Lee | Bug Report | Cannot 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 Lee | Bug Report | Cannot 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 |
Estelle | Bug Report | Conflic 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 BIGOT | Forum | Access 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) |