Re: Urgent help on using OCCI in Linux.

dragon_num_one wrote:
> Hello there,
>
> I am in urgent need to solve the following problem regarding use Oracle OCCI
> under Linux.
>
> Could someone help me to solve this problem? Is OCCI so difficult to use?
>
> the crash is caused by using getString(). If I commented out the second and
> third printf(), the program will be having no problem.
>
> while (rs->next())
> {
> printf("Book ID = %d\n", rs->getInt(1) );
> printf("Title = %s\n", rs->getString(2).c_str() );
> printf("Auther = %s\n", rs->getString(3).c_str() );
> printf("Price = %d\n", rs->getInt(4) );
> }
>
>
>
>
> Thanks so much.
>
> Steven
>
> ==================================================================
>
> The OCCI I downloaded back is version 10.2.0.2, Instant Client Package -
> Basic
>
> The following are some info of it.
>
> Currently we use gcc 4.0.2 (gcc (GCC) 4.0.2 20051125 (Red Hat 4.0.2-8)),
> maybe they are not compatible.
>
> Oracle C++ Call Interface - Downloads
>
>
>
> OCCI for gcc 3.4.3 (Linux) Download (tar)
> OCCI 10.2.0.1.0 support files for building applications with gcc
> version 3.4.3 on RedHat Linux AS 4.0
>
>
>
>
>
>
>
>
>
> Instant Client Downloads
> for Linux x86
>
> Version 10.2.0.2
>
>
> Instant Client Package - Basic: All files required to run OCI, OCCI,
> and JDBC-OCI applications
>
> instantclient-basic-linux32-10.2.0.2-20060331.zip (33,901,074
> bytes) (cksum - 2602139346)
>
>
>
> *Instant Client Package - SQL*Plus: Additional libraries and
> executable for running SQL*Plus with Instant Client
>
> instantclient-sqlplus-linux32-10.2.0.2-20060331.zip (740,155
> bytes) (cksum - 3809431917)
>
>
>
> *Instant Client Package - SDK: Additional header files and an example
> makefile for developing Oracle applications with Instant Client
>
> instantclient-sdk-linux32-10.2.0.2-20060331.zip (602,224 bytes)
> (cksum - 3391827328)
>
>
>
>
> I have been trying to find out what cause my app crash.
>
> Here is the compiling and test result.
>
> [LinuxMOne:stang] /home/stang/Desktop/occi/test> make
>
> g++ -Wall -DLINUX -D_GNU_SOURCE -D_REENTRANT -g -I/home/stang/Desktop/occi/
> include -c -o test1.o test1.cpp
>
> g++ -Wall -DLINUX -D_GNU_SOURCE -D_REENTRANT -g -I/home/stang/Desktop/occi/
> include -locci -lclntsh -lociei -lnnz10 -locci -lclntsh -lociei -lnnz10 -o
> test1 test1.o
>
> /usr/bin/ld: warning: libstdc++.so.5, needed by
> /usr/lib/gcc/i386-redhat-linux/4.0.2/../../../libocci.so, may conflict with
> libstdc++.so.6
>
> [LinuxMOne:stang] /home/stang/Desktop/occi/test> test1
>
> Enter main ...
>
> Enter login_info ...
>
> ====Restriction List====
>
> =name= =ip= =port=
>
> name = www.shaw.ca
>
> ip = 33.33.33.33
>
> Segmentation fault
>
> [LinuxMOne:stang] /home/stang/Desktop/occi/test>
>
> Now I am thinking it must be something to do with the compile warning:
>
> /usr/bin/ld: warning: libstdc++.so.5, needed by
> /usr/lib/gcc/i386-redhat-linux/4.0.2/../../../libocci.so, may conflict with
> libstdc++.so.6
>
> Any idea and solution?
>
> Thanks,
>
> Steven.Tang_at_mobidia.com
>
>
>
> Now I changed the Linux to be RedHat EL AS 4 and gcc 3.4.5-2, I still got
> the program aborted:
>
> *** glibc detected *** free(): invalid pointer: 0x09e557e0 ***
> Aborted
>
> See the following info for detail.
>
> Anyone there could help me please advise me what was wrong!!!
>
> Thanks,
>
> Steven
>
> [magdev_at_magdev test]$ uname -a
> Linux magdev 2.6.9-34.EL #1 Fri Feb 24 16:44:51 EST 2006 i686 i686 i386
> GNU/Linux
>
> [magdev_at_magdev test]$ gcc --v
> Reading specs from /usr/lib/gcc/i386-redhat-linux/3.4.5/specs
> Configured with:
> ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info
> --enable-shared --enable-threads=posix --disable-checking --with-system-zli
> b --enable-__cxa_atexit --disable-libunwind-exceptions --enable-java-awt=gtk
> --host=i386-redhat-linux
> Thread model: posix
> gcc version 3.4.5 20051201 (Red Hat 3.4.5-2)
>
> [magdev_at_magdev test]$ make
> g++ -Wall -DLINUX -D_GNU_SOURCE -D_REENTRANT -g -I/usr/include/occi -c -o
> test1.o test1.cpp
> g++ -Wall -DLINUX -D_GNU_SOURCE -D_REENTRANT -g -I/usr/include/occi -locci
> -lclntsh -lociei -lnnz10 -locci -lclntsh -lociei -lnnz10 -o test1 test1.o
> /usr/bin/ld: warning: libstdc++.so.5, needed by
> /usr/lib/gcc/i386-redhat-linux/3.4.5/../../../libocci.so, may conflict with
> libstdc++.so.6
> [magdev_at_magdev test]$ test1
> -bash: test1: command not found
> [magdev_at_magdev test]$ ./test1
> Enter main ...
> Enter login_info ...
> Enter run() ...
> Enter insertRows ...
> SCOTT's salary = 60000, commission = 6000
> Sleep for awhile to check ...
> Enter deleteRows ...
> The book table has book:
> Book ID = 1
> Title = The C++ Programming Language
> *** glibc detected *** free(): invalid pointer: 0x09e557e0 ***
> Aborted
>
>
>
>
>
>
>
> Steven Tang
>
>

As the TAR description said, you should use gcc3.4.

-KM. Received on Mon Aug 14 2006 - 05:17:39 CDT