Lindy Mayfield wrote:
So you mean that if I read a control block that points to another one, etc, and this points to memory, then I need to basically stop the address space from doing anything until I'm all done reading. Is that about right?
I've been doing this for more than twenty years without holding any locks. The code in the SRB establishes an FRR, and the recovery routine decides what to do - quit with an error condition (and originator can retry later), or retry immediately (with a counter to prevent indefinite recursion).
What's more interesting is getting information from address spaces that are not available (e.g., timesharing session in a terminal input wait).
Gerhard Postpischil Bradford, VT ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
