diff options
Diffstat (limited to 'src/idmap.c')
| -rw-r--r-- | src/idmap.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/idmap.c b/src/idmap.c index b69b0333..da7f175c 100644 --- a/src/idmap.c +++ b/src/idmap.c @@ -154,6 +154,18 @@ unsigned int idmap_alloc(struct idmap *idmap) return bit + idmap->min; } +void idmap_take(struct idmap *idmap, unsigned int id) +{ + unsigned int bit = id - idmap->min; + unsigned int offset; + + if (bit >= idmap->size) + return; + + offset = bit / BITS_PER_LONG; + idmap->bits[offset] |= 1 << (bit % BITS_PER_LONG); +} + /* * Allocate the next bit skipping the ids up to and including last. If there * is no free ids until the max id is encountered, the counter is wrapped back |