3 Commits

Author	SHA1	Message	Date
Stephen Heumann	c37475dcbc	Change vfork_and_run implementation to inspect the kernel's process tables to determine whether the child has really exec'd or exited. ... This should avoid strange behavior due to races when the parent has resumed but the child is still running the exec* code in libc, which mainly manifests itself when running at low speed. We also change to signaling the child's completion with SIGALRM, and setting an extra alarm in the parent in case the child doesn't actually do it.	2014-11-10 16:08:24 -06:00
Stephen Heumann	9bc48e5ebf	Add synchronization to prevent the parent from running concurrently with the child until the child execs or terminates. ... Our approach is to have the parent wait for SIGUSR2, and send that from the child just before it calls exec* or _exit.	2014-11-06 23:29:42 -06:00
Stephen Heumann	051b79efc1	Move all the source files to 15-character ProDOS-compatible file names. ... Dmake gets confused if you use over-15-character file names, so they needed to be shortened to get it to work. While I was at it, I also switched _ to . in the filenames so they're fully ProDOS compatible. The shell/hush_test directory (not needed to build the code) still uses ProDOS-incompatible file names.	2014-11-02 22:11:07 -06:00