Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!cunixf.cc.columbia.edu!cs.columbia.edu!mail Newsgroups: comp.os.mach Date: Wed, 15 May 91 15:30:18 EST From: Chao Yuan Message-Id: <9105152030.AA18884@cs.columbia.edu> Subject: (none) Hi, Did you ever try the simp_ipc.c example shown in A Programmer's Guide to the Mach System calls, written by Linda R. Walmer & Mary R. Thompson? I tried it in Mach 2.4, but it didn't work. The problem seems in the call env_set_port. But I couldn't fix out. Any help, pls. Thanks a lot in advance. Chao