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  2. RPG400-L
  3. December 2015

Re: Need ideas to reduce open/close in RPG program

On 12/15/2015 11:08 AM, Barbara Morris wrote:
On 12/13/2015 10:19 AM, Buck Calabro wrote:
...
RPG typically closes the files on exit, but you can alter that
behaviour with USROPN and RETURN.

Just a clarification about USROPN ... USROPN only affects how files are
_opened_. It has no effect on when files are _closed_.

- Global files in a cycle-main module get implicitly closed when the
main procedure returns abnormally or with LR on
- Local files without the STATIC keyword in a procedure get implicitly
closed when the procedure ends
- No other files are implicitly closed. They only get closed by the
CLOSE opcode or by the activation group ending.

So if you always want a file to be open, there's no real need to code
USROPN.

Good point, thanks for untangling my tongue :-)


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