About services in COBOL

This book begins with this topic which provides information about using the Transfer CFT services in COBOL.

The programming interface is implemented by the calling application module link, with the Transfer CFT interface function module or modules.

The library of modules supplied provides everything programmers can require.

This library also contains a programming example and the following COPY CLAUSE: CFTAPI to be included in the application which uses the Transfer CFT programming interfaces.

Call syntax

CALL CFTx USING <verb> <blk> <param> <rc>

Where:

  • CFTx indicates:
  • CFTI: Transfer CFT catalog querying services
  • CFTU: transfer services with syntax analysis
  • CFTC: transfer services without syntax analysis
  • <verb> is the ┬ácommand you want to process
  • <blk> is the internal control block
  • < is a character string of variable length that contains the function parameters>param
  • <rc> is the return code

The variables described in this documentation are defined in the cftapi.cop file supplied in the library of delivered modules. The programming example and the corresponding COPY files are shipped with the product.

Return codes

The return codes are returned by the programming interfaces in the form of mnemonics.

Note It is strongly recommended that you test the return codes of services provided by the Transfer CFT programming interfaces through mnemonics, the corresponding values being able to change without notice.

The return codes are listed in the cftapi.cop source file.

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