Back Midas Rome Roody Rootana
  Midas DAQ System, Page 139 of 150  Not logged in ELOG logo
Entry  29 Aug 2009, Exaos Lee, Forum, At last, I'm here again! 
I always got a 503 server error while I tried to connect this log book the latest 
weeks. I don't know why. I hope it is not due to the network censorship because 
of the coming National Day of China. Anyway, good luck to me when I want to paste 
something here.
    Reply  31 Aug 2009, Exaos Lee, Forum, Link error of "mcnaf" 
I repeated the link error again. I also found the almost all sources located in "driver/camac/" using "cam_op()" but not "camop()". Please see the grep result below:
drivers/camac/camaclx.c:760:INLINE void cam_op()
drivers/camac/camacnul.c:200:INLINE void cam_op()
drivers/camac/camacrpc.c:563:void cam_op()
drivers/camac/cc7700pci.c:744:INLINE void cam_op()
drivers/camac/ces2117.c:227:void cam_op()
drivers/camac/ces8210.c:553:void cam_op(void)
drivers/camac/ces8210.c:576:    cam_op();
drivers/camac/ces8210.c:625:    cam_op();
drivers/camac/dsp004.c:692:void cam_op()
drivers/camac/hyt1331.c:1125:INLINE void cam_op()
drivers/camac/jorway73a.c:563:INLINE void cam_op()
drivers/camac/kcs2926.c:618:INLINE void cam_op()
drivers/camac/kcs2927.c:677:INLINE void cam_op()
drivers/camac/wecc32.c:554:INLINE void cam_op()

I also found why the default Makefile can pass away this problem. I found the "make" using the following command to compile the "mcnaf":
cc -g -O3 -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/bin/mcnaf utils/mcnaf.c drivers/camac/camacrpc.c linux/lib/libmidas.a -lutil -lpthread -lodbc -lz
I try to re-implement the link error again. So I wrote some test code.

1. anullf.h
#ifndef _ANULLF_H_
#define _ANULLF_H_ 1

#define EXTERNAL extern

#if defined( _MSC_VER )
#define INLINE __inline
#elif defined(__GNUC__)
#define INLINE __inline__
#else
#define INLINE
#endif
/* make functions under WinNT dll exportable */
#if defined(_MSC_VER) && defined(MIDAS_DLL)
#define EXPRT __declspec(dllexport)
#else
#define EXPRT
#endif

EXTERNAL INLINE void EXPRT camop() {  };

#endif

2. ma_1.c
#include "anullf.h"

void cam_op() {}

3. ma.c
#include "anullf.h"
#include <stdio.h>

int main(int argc, char** argv)
{
  camop();
}

Then, only compiling as below can pass:
$ gcc -O -o ma ma_1.c ma.c
If you remove the option "-O", compiling immediately fails in a link error. Whether you compile into objects then link them or just compile them together, you can pass with option "-O" or the similar options. It is because the compile could solve linking to a dummy function automatically with option "-O".

Anyway, we should fix this no matter changing the "mcstd.h" or codes located in "driver/camac/".
    Reply  31 Aug 2009, Exaos Lee, Forum, Why should we use "INLINE" here? 
There are many "INLINE" definitions in "include/*.h". Both GNU C and C99 permit using inline functions. I still wonder why. Smile
Entry  03 Sep 2009, Exaos Lee, Bug Report, Prompt problem about odbedit Screenshot-10.png
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.
Entry  03 Sep 2009, Exaos Lee, Suggestion, Building MIDAS using CMake cmake.zip
I write some configure file to build MIDAS using CMake. The usage is simple:
1. Unzip the attachment, copy "CMakeLists.txt" and directory "cmake" into the
midas source tree.
   $ cp -rp CMakeLists.txt cmake/  <PATH-TO-MIDAS>/
2. make a separate directory, such as "build". It's a good habit to build a
project without polluting the source tree. :-)
   $ mkdir build
3. Executing cmake
   $ cd build && cmake <PATH-TO-MIDAS>
4. Make
   $ make

Or, you can generate Xcode project files:
  $ cmake -G Xcode <PATH-TO-MIDAS>
or using visual studio
  $ cmake -G "Visual Studio" <PATH-TO-MIDAS>
(I havn't Visual Studio and windows, so the above command is not tested.)
or using other IDEs, such as KDevelop3, Eclipse, etc, just type:
  $ cmake -G "KDevelop3" <PATH-TO-MIDAS>
or
  $ cmake -G "Eclipse CDT4" <PATH-TO-MIDAS>


I test the configure file with GNU make and CMake 2.6.4 on Debian Lenny. I
havn't add installation commands now. Maybe later. If anyone interests in it, I
may check it again. Anyway, I'm using it.
    Reply  03 Sep 2009, Exaos Lee, Suggestion, Some screenshot using CMake with MIDAS Screenshot-11.pngScreenshot-13.png
I didn't add optimization flags to compile, so I got link error while generating mcnaf as I reported before.
The screen-shots show that the configure files works because I have modified the "driver/camac/camacrpc.c".
Entry  06 Sep 2009, Exaos Lee, Bug Report, Delete key "/A_Str" problem odbedit.png
Another problem while using odbedit.
I tried the batch mode of "odbedit". I created a key as "/A_Str" by mistake and 
wanted to delete it. Then "odbedit" failed to accept the "Return" key. Please see 
the screen-shot attached. :-(
    Reply  06 Sep 2009, Exaos Lee, Suggestion, Could not create strings other than 32 characters with odbedit -c "..." command 
> Ok, I added a command
> 
> odbedit -c "create STRING Test[8][40]"
> 
> which works now. Please update to SVN revision 4555 of odbedit.c
> 
> - Stefan

If I want to create only one string, should I write like this:

  odbedit -c "create STRING Test[] [256]"

OK. I need it. I will try the new odbedit.
Entry  06 Sep 2009, Exaos Lee, Bug Report, Compiling error of "src/history_odbc.cxx" build-err.log
Version svn-r4556, I got a compiling error as below:
/opt/DAQ/bot/midas/src/history_odbc.cxx: In member function 'virtual int 
SqlODBC::GetNumRows()':
/opt/DAQ/bot/midas/src/history_odbc.cxx:589: error: cannot convert 'SQLINTEGER*' 
to 'long int*' for argument '2' to 'SQLRETURN SQLRowCount(void*, long int*)'
/opt/DAQ/bot/midas/src/history_odbc.cxx: In member function 'virtual const char* 
SqlODBC::GetColumn(int)':
/opt/DAQ/bot/midas/src/history_odbc.cxx:638: error: cannot convert 'SQLINTEGER*' 
to 'long int*' for argument '6' to 'SQLRETURN SQLGetData(void*, SQLUSMALLINT, 
SQLSMALLINT, void*, long int, long int*)'
make[2]: *** [CMakeFiles/midas-static.dir/src/history_odbc.cxx.o] Error 1
make[2]: Leaving directory `/opt/DAQ/bot/midas/build'
make[1]: *** [CMakeFiles/midas-static.dir/all] Error 2
make[1]: Leaving directory `/opt/DAQ/bot/midas/build'

The detail error log is attached. I used my CMake script without any optimization flags. I will try the default Makefile again.
    Reply  06 Sep 2009, Exaos Lee, Bug Report, Compiling error of "src/history_odbc.cxx" 

Exaos Lee wrote:
Version svn-r4556, I got a compiling error as below:
The detail error log is attached. I used my CMake script without any optimization flags. I will try the default Makefile again.


BUG is confirmed using the default "Makefile".
    Reply  06 Sep 2009, Exaos Lee, Bug Fix, Maybe a fix history_odbc.cxx.diff
Changing "SQLINTEGER" to "SQLLEN" maybe let the compiling pass. See the attached diff.

But I failed in another error. It was the problem in CMakeLists.txt. (FIXED)
    Reply  06 Sep 2009, Exaos Lee, Suggestion, Updated "CMakeLists.txt" CMakeLists.txt
Add installation commands. Please see the attachment.
    Reply  06 Sep 2009, Exaos Lee, Bug Report, Delete key "/A_Str" problem 
> Another problem while using odbedit.
> I tried the batch mode of "odbedit". I created a key as "/A_Str" by mistake and 
> wanted to delete it. Then "odbedit" failed to accept the "Return" key. Please see 
> the screen-shot attached. :-(

This bug has been fixed in the latest repository.
I encountered it in svn-r4488.
    Reply  06 Sep 2009, Exaos Lee, Suggestion, Could not create strings other than 32 characters with odbedit -c "..." command 
> > Ok, I added a command
> > 
> > odbedit -c "create STRING Test[8][40]"
> > 
> > which works now. Please update to SVN revision 4555 of odbedit.c
> > 
> > - Stefan
> 
> If I want to create only one string, should I write like this:
> 
>   odbedit -c "create STRING Test[] [256]"
> 
> OK. I need it. I will try the new odbedit.

"create STRING test[1][256]" works.
Entry  07 Sep 2009, Exaos Lee, Forum, deprecated conversion from string constant to ‘char*’ make-warnings.log
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. :-)
    Reply  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)
Entry  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
    Reply  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 (&#26085;, 27  9&#26376; 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()'
Entry  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?
Entry  09 Oct 2009, Exaos Lee, Bug Report, Building error of history_midas.cxx due to missing declaration build-20091010.log
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.
ELOG V3.1.4-2e1708b5