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SubjectRe: Pollable Semaphores
On Fri, 21 Jan 2005 23:05:04 -0800, Chris Wright <chrisw@osdl.org> wrote:
> Yeah, here it is. I refreshed it against a current kernel. It passes my
> same old test, where I select on /proc/<pid>/status fd in exceptfds.

Looks certainly attractive to me. Nice small patch. How quickly
after the death of the process is proc_pid_flush() called?

If this could go in and the futex stuff is handled, there is "only"
async I/O to handle. After that we could finally create a uniform
event mechanism at userlevel which binds all these events (I/O,
process/thread termination, sync primitives) together. Maybe support
for legacy sync primitives (SysV semaphores, msg queues) is needed as
well, don't know yet. Note that I assume that polling of POSIX
mqueues works as it did the last time I tried it.
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