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ofono
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Code Issues Releases Activity

Add idmap_take utility

This commit is contained in:
Denis Kenzior 2010-01-07 14:42:29 -06:00
parent c4e89c46c8
commit bdfa90bd14
2 changed files with 14 additions and 1 deletions
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12
src/idmap.c
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@ -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

3
src/idmap.h
View File

@ -23,7 +23,8 @@ struct idmap;
struct idmap *idmap_new(unsigned int size);
void idmap_free(struct idmap *idmap);
void idmap_put(struct idmap *idmap, unsigned int bit);
void idmap_put(struct idmap *idmap, unsigned int id);
void idmap_take(struct idmap *idmap, unsigned int id);
unsigned int idmap_alloc(struct idmap *idmap);
unsigned int idmap_alloc_next(struct idmap *idmap, unsigned int last);
struct idmap *idmap_new_from_range(unsigned int min, unsigned int max);