> Linux and FreeBSD have adopted a syscall close_range(min, max, flags) > that, depending on flags, either closes, marks cloexec, or `unshares' > every file descriptor d with min <= d <= max.
> [...] (I'll ignore `unshare' for now which does not really have > first-class semantics in NetBSD anyway.) [...] What _are_ its semantics? Based on the name, my reaction would be to expect that either (a) it's got something to do with threading and/or Linuxish clone(CLONE_FILES), decoupling one thread/process's fd from another's, or (b) something akin to dup but happening at the open file table level instead of the file descriptor level. I don't like the close_range() name, because it sometimes has nothing to do with closing (the unshare option). I also see no need for burning another syscall number; I'd prefer to make those fcntl() operations, either with more than three arguments or with the third arg being a pointer to a struct. /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTML mo...@rodents-montreal.org / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B
