diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/tests/unit/Makefile | 6 | ||||
| -rw-r--r-- | src/gallium/tests/unit/SConscript | 1 | ||||
| -rw-r--r-- | src/gallium/tests/unit/u_cache_test.c | 121 |
3 files changed, 126 insertions, 2 deletions
diff --git a/src/gallium/tests/unit/Makefile b/src/gallium/tests/unit/Makefile index 018c3a73475..f65958dadd5 100644 --- a/src/gallium/tests/unit/Makefile +++ b/src/gallium/tests/unit/Makefile @@ -20,8 +20,10 @@ LINKS = \ SOURCES = \ pipe_barrier_test.c \ - u_format_test.c \ - u_half_test.c + u_cache_test.c \ + u_half_test.c \ + u_format_test.c + OBJECTS = $(SOURCES:.c=.o) diff --git a/src/gallium/tests/unit/SConscript b/src/gallium/tests/unit/SConscript index 364eb662077..8a9f3504c75 100644 --- a/src/gallium/tests/unit/SConscript +++ b/src/gallium/tests/unit/SConscript @@ -6,6 +6,7 @@ env.Prepend(LIBS = [gallium]) progs = [ 'pipe_barrier_test', + 'u_cache_test', 'u_format_test', 'u_half_test' ] diff --git a/src/gallium/tests/unit/u_cache_test.c b/src/gallium/tests/unit/u_cache_test.c new file mode 100644 index 00000000000..0b62a765230 --- /dev/null +++ b/src/gallium/tests/unit/u_cache_test.c @@ -0,0 +1,121 @@ +/************************************************************************** + * + * Copyright 2010 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +/* + * Test case for u_cache. + */ + + +#include <assert.h> +#include <stdio.h> + +#include "util/u_cache.h" +#include "util/u_hash.h" + + +typedef uint32_t cache_test_key; +typedef uint32_t cache_test_value; + + +static uint32_t +cache_test_hash(const void *key) +{ + return util_hash_crc32(key, sizeof(cache_test_key)); +} + + +static void +cache_test_destroy(void *key, void *value) +{ + free(key); + free(value); +} + + +static int +cache_test_compare(const void *key1, const void *key2) { + return !(key1 == key2); +} + + +int main() { + unsigned cache_size; + unsigned cache_count; + + for (cache_size = 2; cache_size < (1 << 15); cache_size *= 2) { + for (cache_count = (cache_size << 5); cache_count < (cache_size << 10); cache_count *= 2) { + struct util_cache * cache; + cache_test_key *key; + cache_test_value *value_in; + cache_test_value *value_out; + int i; + + printf("Testing cache size of %d with %d values.\n", cache_size, cache_count); + + cache = util_cache_create(cache_test_hash, + cache_test_compare, + cache_test_destroy, + cache_size); + + /* + * Retrieve a value from an empty cache. + */ + key = malloc(sizeof(cache_test_key)); + *key = 0xdeadbeef; + value_out = (cache_test_value *) util_cache_get(cache, key); + assert(value_out == NULL); + free(key); + + + /* + * Repeatedly insert into and retrieve values from the cache. + */ + for (i = 0; i < cache_count; i++) { + key = malloc(sizeof(cache_test_key)); + value_in = malloc(sizeof(cache_test_value)); + + *key = rand(); + *value_in = rand(); + util_cache_set(cache, key, value_in); + + value_out = util_cache_get(cache, key); + assert(value_out != NULL); + assert(value_in == value_out); + assert(*value_in == *value_out); + } + + /* + * In debug builds, this will trigger a self-check by the cache of + * the distribution of hits in its internal cache entries. + */ + util_cache_destroy(cache); + } + } + + return 0; +} |