benson@odi.com (Benson I. Margulies) (12/12/90)
I'm on the verge of coding a simple use of the shm system call family on a system that dosen't supply the more modern mapping calls. The question is -- how to pick segment id's that are not going to collide with other, unrelated applications? Calling ftok(3) is fine, so long as anyone does it. But there seems no guarantee that some other rogue elephant won't go and stir up one of those bitpatterns. Has anyone else wrestled this item? -- Benson I. Margulies
chip@tct.uucp (Chip Salzenberg) (12/13/90)
According to benson@odi.com (Benson I. Margulies): >I'm on the verge of coding a simple use of the shm system call >family on a system that dosen't supply the more modern mapping >calls. System V IPC keys are Evil and Rude. Don't use them. Specify IPC_PRIVATE as the key, then store the id in a place known to your application. -- Chip Salzenberg at Teltronics/TCT <chip@tct.uucp>, <uunet!pdn!tct!chip> "What's that thing, when people die, they take apart the body to see why?" -- St. Theresa of the Net