Kohji Okuno wrote this message on Fri, Feb 28, 2014 at 11:13 +0900: > I have a question about kevent. > > How should the userland judge knote which is cleared from knlist by > knlist_clear() or knlist_delete()? It looks like I need to read the code better... knlist_clear (killkn=0) and knlist_delete (killkn=1) are wrappers around knlist_cleardel... Looking at the code of knlist_cleardel, if killkn is set (knlist_delete) the knote will be dropped (free'd)... if it is not set, the flags _EOF and _ONESHOT will be set such that it'll be returned soon.. Now that I look at the code, KNOTE_ACTIVATE is never called to be put on the list to be delivered, so now I'm not sure if it works the way it's suppose to... I have a feeling that the notes might hang around forever until the kq fd is closed... I'm also puzzled as to why _DETACHED isn't set, which would seem to mean that we'll call f_detach when we close the kq, which I assume could cause a panic... This needs to be investigated/tested... -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."Received on Fri Feb 28 2014 - 06:16:21 UTC
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