f72_mmp1@red.span (04/11/89)
Two software puzzles on a Masscomp 5600 RTU 4.0a: 1) Is it possible to keep an "open" to an HPSM tty port from blocking indefinitely if there is no physical connection to the port? Setting O_NDELAY doesn't do the job. The manual says setting O_NDELAY causes a return w/o waiting for carrier. Is this a bug? 2) I recently tried to port a graphics program to Masscomp that uses the standard Unix plotting library (plot or libplot) to generate a metafile that can then be piped to various devices (plot and graph would make use of this library). Unfortunately, it appears that Masscomp has replaced this library with sp-45 which not only fails to have identical calls to the standard library, but in addition are so high level that the calls cannot be replaced with similar sp-45 calls. I am especially interested in: openpl() erase() space() label() linemod() cont() these two are the move() most important. Is anyone aware of the existence of the standard library for Masscomp and is it available? Melora Park Woods Hole Oceanographics Institution Woods Hole, MA 02543 (508) 548-1400 x2677 mpark@red.whoi.edu The MASSCOMP USERS' SOCIETY newsgroup is comp.sys.masscomp. Articles to: masscomp@soma.bcm.tmc.edu or uunet!soma.bcm.tmc.edu!masscomp Administrative stuff: masscomp-request@soma.bcm.tmc.edu Stan Barber, Moderator