Sharing a process sure is hard in POSIX.
The rationale is that you'd have to handle EINTR on every single
blocking syscall. stream_file.c does not seem to handle it on read()
calls.
It appears that on most modern systems, this can happen only if you call
sigaction(), and incompetently forget to add SA_RESTART. signal()
usually adds it.
wm4
d5959df2be