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* printing: return last change time with pcap_cache_loaded()David Disseldorp2014-08-081-1/+1
| | | | | | | Bug: https://bugzilla.samba.org/show_bug.cgi?id=10652 Signed-off-by: David Disseldorp <ddiss@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
* printing: remove pcap_cache_add()David Disseldorp2014-08-081-1/+0
| | | | | | | | | | All print list updates are now done via pcap_cache_replace(), which can call into the print_list code directly. Bug: https://bugzilla.samba.org/show_bug.cgi?id=10652 Signed-off-by: David Disseldorp <ddiss@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
* printing: reload printer_list.tdb from in memory listDavid Disseldorp2014-08-081-4/+4
| | | | | | | | | This will allow in future for a single atomic printer_list.tdb update. Bug: https://bugzilla.samba.org/show_bug.cgi?id=10652 Signed-off-by: David Disseldorp <ddiss@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
* printing: traverse_read the printer list for share updatesDavid Disseldorp2014-08-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | The printcap update procedure involves the background printer process obtaining the printcap information from the printing backend, writing this to printer_list.tdb, and then notifying all smbd processes of the new list. The processes then all attempt to simultaneously traverse printer_list.tdb, in order to update their local share lists. With a large number of printers, and a large number of per-client smbd processes, this traversal results in significant lock contention, mostly due to the fact that the traversal is unnecessarily done with an exclusive (write) lock on the printer_list.tdb database. This commit changes the share update code path to perform a read-only traversal. Bug: https://bugzilla.samba.org/show_bug.cgi?id=10652 Reported-by: Alex K <korobkin+samba@gmail.com> Reported-by: Franz Pförtsch <franz.pfoertsch@brose.com> Signed-off-by: David Disseldorp <ddiss@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
* source3/printing/pcap.h: fix licence/copyrightGünther Deschner2011-06-101-0/+15
| | | | Guenther
* s3-printing: remove cups_pull_comment_location from header fileDavid Disseldorp2011-05-161-4/+0
| | | | | | | Signed-off-by: Günther Deschner <gd@samba.org> Autobuild-User: Günther Deschner <gd@samba.org> Autobuild-Date: Mon May 16 16:03:57 CEST 2011 on sn-devel-104
* s3-printing: Get the location info from cups.Günther Deschner2011-05-161-4/+4
| | | | Signed-off-by: Günther Deschner <gd@samba.org>
* s3-printing: fix pcacp prototypes and includes.Günther Deschner2011-02-221-0/+6
| | | | Guenther
* s3-printing: remove old entries in pcap_cache_replaceDavid Disseldorp2011-01-071-1/+1
| | | | | | Callers of pcap_cache_replace() assume the existing printcap cache is replaced by the new values provided. This is not currently the case, old entries should be removed.
* s3-printing: reload shares after pcap cache fillDavid Disseldorp2011-01-071-1/+3
| | | | | | | | | | | | | | | | Since commit eada8f8a, updates to the cups pcap cache are performed asynchronously - cups_cache_reload() forks a child process to request cups printer information and notify the parent smbd on completion. Currently printer shares are reloaded immediately following the call to cups_cache_reload(), this occurs prior to smbd receiving new cups pcap information from the child process. Such behaviour can result in stale print shares as outlined in bug 7836. This fix ensures print shares are only reloaded after new pcap data has been received. Pair-Programmed-With: Lars Müller <lars@samba.org>
* s3: Remove the smbd_messaging_context from cups_cache_reloadVolker Lendecke2010-08-081-1/+2
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* Make pcap headers privateSimo Sorce2010-05-141-0/+52
Signed-off-by: Günther Deschner <gd@samba.org>
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