diff options
| author | Michael Adam <obnox@samba.org> | 2008-08-05 23:38:56 +0200 |
|---|---|---|
| committer | Karolin Seeger <kseeger@samba.org> | 2008-08-11 16:16:03 +0200 |
| commit | 648fb541542bcd9f0e76d6f5f8b5589f9f02feb7 (patch) | |
| tree | 72558bd25ad7205ae367575e326aca06522505f0 /source/lib | |
| parent | 4b25a10a4d02c91ca3c5a2365e4e04d3f2c93f83 (diff) | |
| download | samba-648fb541542bcd9f0e76d6f5f8b5589f9f02feb7.tar.gz samba-648fb541542bcd9f0e76d6f5f8b5589f9f02feb7.tar.xz samba-648fb541542bcd9f0e76d6f5f8b5589f9f02feb7.zip | |
dbwrap: add comment describing behaviour of dbwrap_change_int32_atomic().
Michael
(cherry picked from commit f8f21c8e3922806230e240cb54205fc2db7a3619)
(cherry picked from commit 0bdab793c1da9b56790d37ac7d064b67ec51e3a4)
Diffstat (limited to 'source/lib')
| -rw-r--r-- | source/lib/dbwrap_util.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/source/lib/dbwrap_util.c b/source/lib/dbwrap_util.c index 7789f692230..09e9071d8c9 100644 --- a/source/lib/dbwrap_util.c +++ b/source/lib/dbwrap_util.c @@ -138,6 +138,13 @@ uint32_t dbwrap_change_uint32_atomic(struct db_context *db, const char *keystr, return 0; } +/** + * Atomic integer change (addition): + * + * if value does not exist yet in the db, use *oldval as initial old value. + * return old value in *oldval. + * store *oldval + change_val to db. + */ int32 dbwrap_change_int32_atomic(struct db_context *db, const char *keystr, int32 *oldval, int32 change_val) { |