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authormarha <marha@users.sourceforge.net>2015-02-22 14:31:16 +0100
committermarha <marha@users.sourceforge.net>2015-02-22 14:31:16 +0100
commitf1c2db43dcf35d2cf4715390bd2391c28e42a8c2 (patch)
tree46b537271afe0f6534231b1bd4cc4f91ae1fb446 /mesalib/src/util/hash_table.c
parent5e5a48ff8cd08f123601cd0625ca62a86675aac9 (diff)
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xwininfo fontconfig libX11 libXdmcp libfontenc libxcb libxcb/xcb-proto mesalib xserver xkeyboard-config mkfontscale git update 22 Feb 2015
xserver commit 3a06faf3fcdb7451125a46181f9152e8e59e9770 libxcb commit e3ec1f74637237ce500dfd0ca59f2e422da4e019 libxcb/xcb-proto commit 4c550465934164aab2449a125f75f4ca07816233 xkeyboard-config commit 26f344c93f8c6141e9233eb68088ba4fd56bc9ef libX11 commit c8e19b393defd53f046ddc2da3a16881221b3c34 libXdmcp commit 9f4cac7656b221ce2a8f97e7bd31e5e23126d001 libfontenc commit de1843aaf76015c9d99416f3122d169fe331b849 mkfontscale commit 87d628f8eec170ec13bb9feefb1ce05aed07d1d6 xwininfo commit 0c49f8f2bd56b1e77721e81030ea948386dcdf4e fontconfig commit d6d5adeb7940c0d0beb86489c2a1c2ce59e5c044 mesa commit 4359954d842caa2a9f8d4b50d70ecc789884b68b
Diffstat (limited to 'mesalib/src/util/hash_table.c')
-rw-r--r--mesalib/src/util/hash_table.c46
1 files changed, 23 insertions, 23 deletions
diff --git a/mesalib/src/util/hash_table.c b/mesalib/src/util/hash_table.c
index 0ad038377..3247593c1 100644
--- a/mesalib/src/util/hash_table.c
+++ b/mesalib/src/util/hash_table.c
@@ -232,7 +232,7 @@ hash_table_insert(struct hash_table *ht, uint32_t hash,
const void *key, void *data);
static void
-_mesa_hash_table_rehash(struct hash_table *ht, int new_size_index)
+_mesa_hash_table_rehash(struct hash_table *ht, unsigned new_size_index)
{
struct hash_table old_ht;
struct hash_entry *table, *entry;
@@ -267,6 +267,7 @@ hash_table_insert(struct hash_table *ht, uint32_t hash,
const void *key, void *data)
{
uint32_t start_hash_address, hash_address;
+ struct hash_entry *available_entry = NULL;
if (ht->entries >= ht->max_entries) {
_mesa_hash_table_rehash(ht, ht->size_index + 1);
@@ -281,13 +282,11 @@ hash_table_insert(struct hash_table *ht, uint32_t hash,
uint32_t double_hash;
if (!entry_is_present(ht, entry)) {
- if (entry_is_deleted(ht, entry))
- ht->deleted_entries--;
- entry->hash = hash;
- entry->key = key;
- entry->data = data;
- ht->entries++;
- return entry;
+ /* Stash the first available entry we find */
+ if (available_entry == NULL)
+ available_entry = entry;
+ if (entry_is_free(entry))
+ break;
}
/* Implement replacement when another insert happens
@@ -314,6 +313,16 @@ hash_table_insert(struct hash_table *ht, uint32_t hash,
hash_address = (hash_address + double_hash) % ht->size;
} while (hash_address != start_hash_address);
+ if (available_entry) {
+ if (entry_is_deleted(ht, available_entry))
+ ht->deleted_entries--;
+ available_entry->hash = hash;
+ available_entry->key = key;
+ available_entry->data = data;
+ ht->entries++;
+ return available_entry;
+ }
+
/* We could hit here if a required resize failed. An unchecked-malloc
* application could ignore this result.
*/
@@ -334,8 +343,8 @@ _mesa_hash_table_insert(struct hash_table *ht, const void *key, void *data)
}
struct hash_entry *
-_mesa_hash_table_insert_with_hash(struct hash_table *ht, uint32_t hash,
- const void *key, void *data)
+_mesa_hash_table_insert_pre_hashed(struct hash_table *ht, uint32_t hash,
+ const void *key, void *data)
{
assert(ht->key_hash_function == NULL || hash == ht->key_hash_function(key));
return hash_table_insert(ht, hash, key, data);
@@ -431,27 +440,18 @@ _mesa_hash_table_random_entry(struct hash_table *ht,
uint32_t
_mesa_hash_data(const void *data, size_t size)
{
- uint32_t hash = 2166136261ul;
- const uint8_t *bytes = data;
-
- while (size-- != 0) {
- hash ^= *bytes;
- hash = hash * 0x01000193;
- bytes++;
- }
-
- return hash;
+ return _mesa_fnv32_1a_accumulate_block(_mesa_fnv32_1a_offset_bias,
+ data, size);
}
/** FNV-1a string hash implementation */
uint32_t
_mesa_hash_string(const char *key)
{
- uint32_t hash = 2166136261ul;
+ uint32_t hash = _mesa_fnv32_1a_offset_bias;
while (*key != 0) {
- hash ^= *key;
- hash = hash * 0x01000193;
+ hash = _mesa_fnv32_1a_accumulate(hash, *key);
key++;
}