diff options
author | kay.sievers@vrfy.org <kay.sievers@vrfy.org> | 2004-02-06 22:21:15 -0800 |
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committer | Greg KH <gregkh@suse.de> | 2005-04-26 21:32:26 -0700 |
commit | 2f6cbd19113167746dc4fb6b4f3f5fd64a1c211f (patch) | |
tree | 3ee052f575f8a3094a97a0dc39fe2ffaf9e93459 /namedev.c | |
parent | d2cf99df7df132d8d90c4f7b438374618793c15a (diff) |
[PATCH] convert udevsend/udevd to DGRAM and single-threaded
On Fri, Feb 06, 2004 at 01:08:24AM -0500, Chris Friesen wrote:
>
> Kay, you said "unless we can get rid of _all_ the threads or at least
> getting faster, I don't want to change it."
>
> Well how about we get rid of all the threads, *and* we get faster?
Yes, we are twice as fast now on my box :)
> This patch applies to current bk trees, and does the following:
>
> 1) Switch to DGRAM sockets rather than STREAM. This simplifies things
> as mentioned in the previous message.
>
> 2) Invalid sequence numbers are mapped to -1 rather than zero, since
> zero is a valid sequence number (I think). Also, this allows for real
> speed tests using scripts starting at a zero sequence number, since that
> is what the initial expected sequence number is.
>
> 3) Get rid of all threading. This is the biggie. Some highlights:
> a) timeout using setitimer() and SIGALRM
> b) async child death notification via SIGCHLD
> c) these two signal handlers do nothing but raise volatile flags,
> all the
> work is done in the main loop
> d) locking no longer required
I cleaned up the rest of the comments, the whitespace and a few names to match
the whole thing. Please recheck it. Test script is switched to work on subsystem
'test' to let udev ignore it.
Diffstat (limited to 'namedev.c')
0 files changed, 0 insertions, 0 deletions