diff options
| author | Volker Lendecke <vlendec@samba.org> | 2007-03-06 10:11:15 +0000 |
|---|---|---|
| committer | Gerald (Jerry) Carter <jerry@samba.org> | 2007-10-10 12:18:25 -0500 |
| commit | 59285f16d6428477b3a065fdf52098af1d62f606 (patch) | |
| tree | c3683305e856c527b2aa08d00b2ef1963a51a538 /source3/tdb/common/open.c | |
| parent | ba992d5ad7bc2e32b2b458d8d91ca450e97513c3 (diff) | |
| download | samba-59285f16d6428477b3a065fdf52098af1d62f606.tar.gz samba-59285f16d6428477b3a065fdf52098af1d62f606.tar.bz2 samba-59285f16d6428477b3a065fdf52098af1d62f606.zip | |
r21722: Add the dead record functionality presented on samba-technical@samba.org. If
you do a tdb_set_max_dead(tdb, n), then for this tdb a delete operation will
only mark a record as dead and re-use it if a new record is created. The
parameter n allows for at most n dead records per hash chain. If this number
is exceeded, all dead records are put on the central freelist.
Volker
(This used to be commit 97af3a019b196d530a50ffc05c57568e2dbda4bb)
Diffstat (limited to 'source3/tdb/common/open.c')
| -rw-r--r-- | source3/tdb/common/open.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/source3/tdb/common/open.c b/source3/tdb/common/open.c index 3f0c35331b..c7fd3f6656 100644 --- a/source3/tdb/common/open.c +++ b/source3/tdb/common/open.c @@ -263,6 +263,7 @@ struct tdb_context *tdb_open_ex(const char *name, int hash_size, int tdb_flags, tdb->map_size = st.st_size; tdb->device = st.st_dev; tdb->inode = st.st_ino; + tdb->max_dead_records = 0; tdb_mmap(tdb); if (locked) { if (tdb->methods->tdb_brlock(tdb, ACTIVE_LOCK, F_UNLCK, F_SETLK, 0, 1) == -1) { @@ -321,6 +322,15 @@ struct tdb_context *tdb_open_ex(const char *name, int hash_size, int tdb_flags, } } +/* + * Set the maximum number of dead records per hash chain + */ + +void tdb_set_max_dead(struct tdb_context *tdb, int max_dead) +{ + tdb->max_dead_records = max_dead; +} + /** * Close a database. * |