On Sat, 7 Oct 2023 13:10:36 -0500, Michael Oujesky wrote: >Dynamic symbols (date/time) can be evaluated at different points in >time during conversion, so if used multiple time in the JCL, they can >resolve to different values. My ROT was to never use a dynamic >symbol more that once in coding and where it was needed multiple >time, set it to my own date/time variable and then use that in the >multiple instances it was needed. > But the hazard exists for any two or more symbols whose values must be coordinated such as DATE and TIME. This could be done with a single symbol containing both date and time with guaranteed block- concurrent access. I know of none such.
POSIX rename() and PDS STOW Replace provide the effect of block-concurrent access to the content of a file. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
