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author | Andrew Tridgell <tridge@samba.org> | 2000-06-12 15:53:31 +0000 |
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committer | Andrew Tridgell <tridge@samba.org> | 2000-06-12 15:53:31 +0000 |
commit | b2d01bd2dbfed8b35cc324fad42eac562fcad3b4 (patch) | |
tree | 6d2708c53b61bbd441d7c4a65945b65d543b2f73 /WHATSNEW.txt | |
parent | 6de513cef43ad83ecd1823bde5a4e05c22224b0f (diff) | |
download | samba-b2d01bd2dbfed8b35cc324fad42eac562fcad3b4.tar.gz samba-b2d01bd2dbfed8b35cc324fad42eac562fcad3b4.tar.bz2 samba-b2d01bd2dbfed8b35cc324fad42eac562fcad3b4.zip |
totally rewrote the async signal, notification and oplock notification
handling in Samba. This was needed due to several limitations and
races in the previous code - as a side effect the new code is much
cleaner :)
in summary:
- changed sys_select() to avoid a signal/select race condition. It is a
rare race but once we have signals doing notification and oplocks it
is important.
- changed our main processing loop to take advantage of the new
sys_select semantics
- split the notify code into implementaion dependent and general
parts. Added the following structure that defines an implementation:
struct cnotify_fns {
void * (*register_notify)(connection_struct *conn, char *path, uint32 flags);
BOOL (*check_notify)(connection_struct *conn, uint16 vuid, char *path, uint32 flags, void *data, time_t t);
void (*remove_notify)(void *data);
};
then I wrote two implementations, one using hash/poll (like our old
code) and the other using the new Linux kernel change notify. It
should be easy to add other change notify implementations by creating
a sructure of the above type.
- fixed a bug in change notify where we were returning the wrong error
code.
- rewrote the core change notify code to be much simpler
- moved to real-time signals for leases and change notify
Amazingly, it all seems to work. I was very surprised!
(This used to be commit 44766c39e0027c762bee8b33b12c621c109a3267)
Diffstat (limited to 'WHATSNEW.txt')
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