diff options
Diffstat (limited to 'lib/libalpm/pkghash.c')
| -rw-r--r-- | lib/libalpm/pkghash.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/lib/libalpm/pkghash.c b/lib/libalpm/pkghash.c index 3ed6453f..f2497070 100644 --- a/lib/libalpm/pkghash.c +++ b/lib/libalpm/pkghash.c @@ -77,9 +77,9 @@ pmpkghash_t *_alpm_pkghash_create(size_t size) /* Expand the hash table size to the next increment and rebin the entries */ static pmpkghash_t *rehash(pmpkghash_t *oldhash) { - //pmpkghash_t *newhash; - - /* TODO - calculate size of newhash */ + pmpkghash_t *newhash; + alpm_list_t *ptr; + size_t newsize; /* Hash tables will need resized in two cases: * - adding packages to the local database * - poor estimation of the number of packages in sync database @@ -89,17 +89,22 @@ static pmpkghash_t *rehash(pmpkghash_t *oldhash) * larger database sizes, this increase is reduced to avoid excess * memory allocation as both scenarios requiring a rehash should not * require a table size increase that large. */ + if(oldhash->buckets < 500) { + newsize = oldhash->buckets * 2; + } else if(oldhash->buckets < 3500) { + newsize = oldhash->buckets * 3 / 2; + } else { + newsize = oldhash->buckets * 4 / 3; + } - //newhash = _alpm_pkghash_create(oldhash->buckets); - - /* TODO - rebin entries */ - - //_alpm_pkghash_free(oldhash); + newhash = _alpm_pkghash_create(newsize); + for(ptr = oldhash->list; ptr != NULL; ptr = ptr->next) { + newhash = _alpm_pkghash_add(newhash, ptr->data); + } - //return newhash; + _alpm_pkghash_free(oldhash); - printf("rehash needed!!!\n"); - return(oldhash); + return(newhash); } pmpkghash_t *_alpm_pkghash_add(pmpkghash_t *hash, pmpkg_t *pkg) |