Teradata Parallel Data Pump

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Chapter 5: Using INMOD and Notify Exit Routines Programming INMODs for UNIX-based Clients where Syntax Element gcc Description Call to the program that invokes the native C compiler -m31 Generates code for a 32-bit environment. -shared -fPIC shared-objectname Flag that produces a shared object that can then be linked with other objects to form an executable Compiler option that generates Position Independent Code for all user exit routines Name of the shared object file. The shared-object-name can be any valid file name. This is the name specified as: • The INMOD modulename parameter of the IMPORT of the MultiLoad job script. • The EXIT name parameter for the NOTIFY option of the BEGIN MLOAD and BEGIN DELETE MLOAD of the MultiLoad job script. -o Output file name Compiling and Linking a C INMOD on on IBM OS z/OS Use the following syntax from the USS environment to compile and link source files to a DLL: Note: Be sure to compile the INMOD and notify exit routines in 32-bit mode so that they are compatible with Teradata TPump. cc -o "MVS.PDSE.LOAD(module_name)" "//MVS.PDSE.C(source_name.c)" -W c,dll,expo = -W l,dll 2409A058 where Syntax Element Description -o Name of the executable load module that is produced during the link-edit phase. In the following example, a load module INMOD is placed in a z/OS PDSE named PDSE.LOAD, and the source code, INMOD, is compiled as a member of a z/OS PDSE named TEST.C: cc -o "//PDSE.LOAD(INMOD)" "//TEST.C(INMOD)" -W c,dll,expo -W l,dll Member names are limited to eight characters. -W c,dll,expo Options passed to the compiler phase to indicate that the source is to be compiled as a dll with all functions exported. -W l,dll Options passed to the link-edit phase to indicate that the module is linked as a dll. 226 Teradata Parallel Data Pump Reference
Chapter 5: Using INMOD and Notify Exit Routines Programming INMODs for a Windows Client Programming INMODs for a Windows Client The previous section lists INMOD preparation techniques that apply to all platforms. There are several additional rules to follow when developing C INMODs for Windows clients. These are: • The INMOD routine must be written in C • The INMOD routine must have an entry point named _dynamn and declared with _declspec keyword • The file must be saved as a DLL file Compiling and Linking a C INMOD on a Windows Client Use the following syntax example to create a DLL on a Windows client. cl /DWIN32 / LD inmod.c 3021B012 where Syntax Element cl D LD inmod.c Description Invokes the Microsoft C Compiler Defines a macro Creates a .dll Denotes a C source module for the INMOD Teradata Parallel Data Pump Reference 227
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