Commit graph

9 commits

Author SHA1 Message Date
Nicolai Hähnle
8b11d8cfbf util/hash_table: add _mesa_hash_table_clear (v4)
v4: coding style change (Matt Turner)

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> (v3)
2016-02-03 14:03:25 +01:00
Ian Romanick
1424bbfb57 util/hash: Silence comparison between signed and unsigned integer warnings in tests
delete_management.c:56:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (i = 0; i < size; i++) {
                  ^
delete_management.c:69:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (i = size - 100; i < size; i++) {
                           ^
delete_management.c:79:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       assert(key_value(entry->key) >= size - 100 &&
                               ^
delete_management.c:79:70: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       assert(key_value(entry->key) >= size - 100 &&
                                                                      ^
insert_many.c:56:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (i = 0; i < size; i++) {
                  ^
insert_many.c:62:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (i = 0; i < size; i++) {
                  ^
insert_many.c:67:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    assert(ht->entries == size);
                  ^
random_entry.c:62:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (i = 0; i < size; i++) {
                  ^

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2015-02-17 12:29:58 -08:00
Ian Romanick
3d8f9570cd util/hash: Silence unused parameter warnings in tests
delete_and_lookup.c:37:21: warning: unused parameter ‘key’ [-Wunused-parameter]
 badhash(const void *key)
                     ^
delete_and_lookup.c:43:10: warning: unused parameter ‘argc’ [-Wunused-parameter]
 main(int argc, char **argv)
          ^
delete_and_lookup.c:43:23: warning: unused parameter ‘argv’ [-Wunused-parameter]
 main(int argc, char **argv)
                       ^
collision.c:34:10: warning: unused parameter ‘argc’ [-Wunused-parameter]
 main(int argc, char **argv)
          ^
collision.c:34:23: warning: unused parameter ‘argv’ [-Wunused-parameter]
 main(int argc, char **argv)
                       ^
destroy_callback.c:50:10: warning: unused parameter ‘argc’ [-Wunused-parameter]
 main(int argc, char **argv)
          ^
destroy_callback.c:50:23: warning: unused parameter ‘argv’ [-Wunused-parameter]
 main(int argc, char **argv)
                       ^
insert_many.c:46:10: warning: unused parameter ‘argc’ [-Wunused-parameter]
 main(int argc, char **argv)
          ^
insert_many.c:46:23: warning: unused parameter ‘argv’ [-Wunused-parameter]
 main(int argc, char **argv)
                       ^
insert_and_lookup.c:34:10: warning: unused parameter ‘argc’ [-Wunused-parameter]
 main(int argc, char **argv)
          ^
insert_and_lookup.c:34:23: warning: unused parameter ‘argv’ [-Wunused-parameter]
 main(int argc, char **argv)
                       ^
null_destroy.c:32:10: warning: unused parameter ‘argc’ [-Wunused-parameter]
 main(int argc, char **argv)
          ^
null_destroy.c:32:23: warning: unused parameter ‘argv’ [-Wunused-parameter]
 main(int argc, char **argv)
                       ^
random_entry.c:52:10: warning: unused parameter ‘argc’ [-Wunused-parameter]
 main(int argc, char **argv)
          ^
random_entry.c:52:23: warning: unused parameter ‘argv’ [-Wunused-parameter]
 main(int argc, char **argv)
                       ^
remove_null.c:34:10: warning: unused parameter ‘argc’ [-Wunused-parameter]
 main(int argc, char **argv)
          ^
remove_null.c:34:23: warning: unused parameter ‘argv’ [-Wunused-parameter]
 main(int argc, char **argv)
                       ^
replacement.c:34:10: warning: unused parameter ‘argc’ [-Wunused-parameter]
 main(int argc, char **argv)
          ^
replacement.c:34:23: warning: unused parameter ‘argv’ [-Wunused-parameter]
 main(int argc, char **argv)
                       ^

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2015-02-17 12:29:58 -08:00
Jason Ekstrand
345e8cc849 util/hash_table: Try to hit a double-insertion bug in the collision test
Reviewed-by: Eric Anholt <eric@anholt.net>
2015-02-07 17:01:05 -08:00
Jason Ekstrand
8ed5305d28 hash_table: Rename insert_with_hash to insert_pre_hashed
We already have search_pre_hashed.  This makes the APIs match better.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2015-01-15 13:21:27 -08:00
Jason Ekstrand
94303a0750 util/hash_table: Rework the API to know about hashing
Previously, the hash_table API required the user to do all of the hashing
of keys as it passed them in.  Since the hashing function is intrinsically
tied to the comparison function, it makes sense for the hash table to know
about it.  Also, it makes for a somewhat clumsy API as the user is
constantly calling hashing functions many of which have long names.  This
is especially bad when the standard call looks something like

_mesa_hash_table_insert(ht, _mesa_pointer_hash(key), key, data);

In the above case, there is no reason why the hash table shouldn't do the
hashing for you.  We leave the option for you to do your own hashing if
it's more efficient, but it's no longer needed.  Also, if you do do your
own hashing, the hash table will assert that your hash matches what it
expects out of the hashing function.  This should make it harder to mess up
your hashing.

v2: change to call the old entrypoint "pre_hashed" rather than
    "with_hash", like cworth's equivalent change upstream (change by
    anholt, acked-in-general by Jason).

Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-12-14 19:32:53 -08:00
Matt Turner
e643fd3b4a util: List hash_table tests as check_PROGRAMS.
EXTRA_PROGRAMS is not what you want for binaries listed in TEST.
2014-12-12 12:11:49 -08:00
Jason Ekstrand
1d47f67455 util/tests/hash_table: Link against libmesautil instead of libmesa
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82159

Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2014-08-05 10:52:48 -07:00
Kenneth Graunke
72e55bb688 util: Move the open-addressing linear-probing hash_table to src/util.
This hash table is used in core Mesa, the GLSL compiler, and the i965
driver, which makes it a good candidate for the new src/util module.

It's much faster than program/hash_table.[ch] (see commit 6991c2922f
for data), and José's u_hash_table.c has a comment saying Gallium should
probably consider switching to a linear probing hash table at some point.
So this seems like the best candidate for a shared data structure.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>

v2 (Jason Ekstrand): Pick up another hash_table use and patch up scons

Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2014-08-04 11:07:05 -07:00