DS routine orchestrate.h

[Childrensmn]

Trying to figure out how to get this function to return a integer. Im no c++ programmer and Im not sure how to get this to work... Any help would be appreciated.

The only thing I need is to pass in a string (from DS) and Apt_hash to return the integer back to ds.

Code: Select all

#include <apt_framework/orchestrate.h>

int* ObjTestOne(char Arg1 )
{
int*  OutInt;
OutInt = APT_hash(char Arg1 );

return OutInt;
}

[UCDI]

Code: Select all

int ObjTestOne(char Arg1 ) 
{ 
int*  OutInt; 
OutInt = APT_hash(char Arg1 ); 
int returnme = OutInt[0];

return returnme;
}

I haven't had time to study ds parallism in detail so I have been erring on the side of caution and setting up a tiny memory manager in my functions. I think the above is safe but validate it carefully to ensure that there are no thread-safety type issues. Can anyone elaborate on if datastage does any sort of protectionism and thread safety wrappers to these function calls?

[Childrensmn]

I did get the code to compile however when I run this routine in a job I get the following error.
"Transformer_0: Error when checking composite operator: Failed to load the library "V0S0_cpp_test_routine_2_Transformer_0.so"; either the directory containing the library file
is not on the library search path, or the library was compiled on a system
that is incompatible with this system: Could not load "V0S0_cpp_test_routine_2_Transformer_0": /projects/DwTest/RT_BP930.O/V0S0_cpp_test_routine_2_Transformer_0.so: undefined symbol: _Z10ObjTestOnea. "

I should add the compile line and lib path

g++ -c rr_temp.cpp -O -fPIC -Wno-deprecated -m64 -mtune=generic -mcmodel=small -shared -m64 -I /app/IBM/InformationServer/Server/PXEngine/include
vmpdwis1</app/IBM/InformationServer/Server/PXEngine/lib>


LD_LIBRARY_PATH=`dirname $DSHOME`/biginsights/IHC/c++/Linux-amd64-64/lib:`dirname $DSHOME`/bran
ded_odbc/lib:`dirname $DSHOME`/DSComponents/lib:`dirname $DSHOME`/DSComponents/bin:$DSHOME/lib:$DSHOME/
uvdlls:`dirname $DSHOME`/PXEngine/lib:$ISHOME/jdk/jre/lib/amd64/j9vm:$ISHOME/jdk/jre/lib/amd64:$ASBHOME
/lib/cpp:$ASBHOME/apps/proxy/cpp/linux-all-x86_64:$NZ_HOME/lib64:$ORACLE_HOME/lib:$ORACLE_HOME/sqlplus/
lib:/app/IBM/InformationServer/Server/PXEngine/lib:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH

[UCDI]

You are returning a POINTER not a VALUE. I fixed it for you above.

Also, there are specific compiler options to make a library that DS can call.

g++ -O -fPIC -Wno-deprecated -m64 -mtune=generic -mcmodel=small -shared -m64 -c $1

where $1 is your source file.
you might need more if you have multiple files, this is to compile a simple monolithic source file. Make is beyond me, Im a visual studio kind of guy...

yours is similar but slightly different from mine. It could be something in those differences? I can try to help -- I am very good at realtime C++ but am only low-moderate at unix.