Messages in this thread | | | From | no_spam@ntlworld ... | Subject | kill_fasync usage | Date | Tue, 4 Mar 2003 20:08:16 +0000 |
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Dear list,
quick advice please,
I wnat to use kill_fasync(struct fasync_struct *PTR,...) to notify userland of events. Can I just call kill_fasync regardless of the state of PTR or does PTR actually have to point to something valid.
In my code PTR=NULL initially and may or may not be set or unset during use. I would like to know if I can call kill_fasync without testing what is in PTR. If I have to test what would PTR be if there isn't anything in the queue? If I can't test PTR how can I find out from the arguments to my fasync method if I am adding (or removing) processes from the list?
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