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path: root/source4/ntvfs/common/brlock.c
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2007-10-10r3507: - added deferred replies on sharing violation in pvfs open. TheAndrew Tridgell1-5/+2
deferred reply is short-circuited immediately when the file is closed by another user, allowing it to be opened by the waiting user. - added a sane set of timeval manipulation routines - converted all the events code and code that uses it to use struct timeval instead of time_t, which allows for microsecond resolution instead of 1 second resolution. This was needed for doing the pvfs deferred open code, and is why the patch is so big. (This used to be commit 0d51511d408d91eb5f68a35e980e0875299b1831)
2007-10-10r3463: separated out some more headers (asn_1.h, messages.h, dlinklist.h and ↵Andrew Tridgell1-0/+1
ioctl.h) (This used to be commit b97e395c814762024336c1cf4d7c25be8da5813a)
2007-10-10r3360: improved the deletion of tmp files. smbd now puts all tmp files in ↵Andrew Tridgell1-3/+2
var/locks/smbd.tmp/ and deletes that dir on startup. (This used to be commit 7e942e7f1bd2c293a0e6648df43a96f8b8a2a295)
2007-10-10r3357: removed the need to use TDB_CLEAR_IF_FIRST in Samba4.Andrew Tridgell1-1/+1
We found a few months ago that TDB_CLEAR_IF_FIRST is extremely inefficient for large numbers of connections, due to a fundamental limitation in the way posix byte range locking is implemented. Rather than the nasty workaround we had for Samba3, we now have a single "cleanup tmp files" function that runs when smbd starts. That deletes the tmp tdbs, so TDB_CLEAR_IF_FIRST is not needed at all. (This used to be commit ffa285bc783c775a2d53a58fb691ca339e6c76ae)
2007-10-10r3312: in the brlock code, we prevent lock stampedes by attempting to notAndrew Tridgell1-1/+3
wakeup all pending locks at once. This change means that we only trigger this anti-stampede code for write locks, as for pending read locks the correct behaviour is to stampede (as they will all succeed) (This used to be commit 8021d1d74207db1204139309592b9d2f80f2bd0e)
2007-10-10r3271: use "struct messaging_context *" instead of "void *" in messaging APIAndrew Tridgell1-2/+2
(This used to be commit cc93813e4a09c538ad485dc2b3cb4c9be34f3d18)
2007-10-10r3126: in the brlock code I had used a void* for the brl context as I didn'tAndrew Tridgell1-14/+9
want to expose the brl context structure outside the brlock.c code. Instead, I now use "struct brl_context *" and rely on C being happy to pass around pointers to unknown structures as long as they are not dereferenced. I will be interested to see how the build farm likes this. (This used to be commit cb155c8ad837285c5a7f5b104968239df0b65fd2)
2007-10-10r3031: added support for lock cancelation, which effectively just triggers ↵Andrew Tridgell1-5/+14
an early lock timeout added support for more of the bizarre special lock offset semantics of w2k3 (This used to be commit d5bfc910b1200fb283e26572dc57fcf93652fd32)
2007-10-10r3029: implemented byte range lock timeouts.Andrew Tridgell1-28/+244
This adds a pvfs_wait_message() routine which uses the new messaging system, event timers and talloc destructors to give a nice generic async event handling system with a easy to use interface. The extensions to pvfs_lock.c are based on calls to pvfs_wait_message() routines. We now pass all of our smbtorture locking tests, although while writing this code I have thought of some additonal tests that should be added, particularly for lock cancel operations. I'll work on that soon. This commit also extends the smbtorture lock tests to test the rather weird 0xEEFFFFFF locking semantics that I have discovered in win2003. Win2003 treats the 0xEEFFFFFF boundary as special, and will give different error codes on either side of it. Locks on both sides are allowed, the only difference is which error code is given when a lock is denied. Anyone like to hazard a guess as to why? It has me stumped. (This used to be commit 4395c0557ab175d6a8dd99df03c266325949ffa5)
2007-10-10r3012: added initial support for byte range locking in the posix vfs. This isAndrew Tridgell1-0/+418
enough for us to pass locktest, but does not yet support lock timeouts and some of the other esoteric features. (This used to be commit 58a92abd88f190bc60894a68e0528e95ae33fe39)