X-Git-Url: https://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fhtable%2Ftest%2Frun.c;h=1a9e2de4cb6e7f98fe5e75485e06b37c73de26d5;hp=ece46a0fd7cf4025ae2249785a2fd9d4694a5ee8;hb=0c3590dc33d644f73bb8587db454c491830aaf26;hpb=d3104024f71cf4f89195787add6c7ac381d62f40 diff --git a/ccan/htable/test/run.c b/ccan/htable/test/run.c index ece46a0f..1a9e2de4 100644 --- a/ccan/htable/test/run.c +++ b/ccan/htable/test/run.c @@ -4,7 +4,8 @@ #include #include -#define NUM_VALS (1 << HTABLE_BASE_BITS) +#define NUM_BITS 7 +#define NUM_VALS (1 << NUM_BITS) /* We use the number divided by two as the hash (for lots of collisions), plus set all the higher bits so we can detect if they @@ -12,7 +13,7 @@ static size_t hash(const void *elem, void *unused) { size_t h = *(uint64_t *)elem / 2; - h |= -1UL << HTABLE_BASE_BITS; + h |= -1UL << NUM_BITS; return h; } @@ -22,11 +23,12 @@ static bool objcmp(const void *htelem, void *cmpdata) } static void add_vals(struct htable *ht, - const uint64_t val[], unsigned int num) + const uint64_t val[], + unsigned int off, unsigned int num) { uint64_t i; - for (i = 0; i < num; i++) { + for (i = off; i < off+num; i++) { if (htable_get(ht, hash(&i, NULL), objcmp, &i)) { fail("%llu already in hash", (long long)i); return; @@ -97,80 +99,90 @@ int main(int argc, char *argv[]) { unsigned int i; uintptr_t perfect_bit; - struct htable *ht; + struct htable ht; uint64_t val[NUM_VALS]; uint64_t dne; void *p; struct htable_iter iter; - plan_tests(23); + plan_tests(29); for (i = 0; i < NUM_VALS; i++) val[i] = i; dne = i; - ht = htable_new(hash, NULL); - ok1(ht->max < (1 << ht->bits)); - ok1(ht->bits == HTABLE_BASE_BITS); + htable_init(&ht, hash, NULL); + ok1(ht.max == 0); + ok1(ht.bits == 0); /* We cannot find an entry which doesn't exist. */ - ok1(!htable_get(ht, hash(&dne, NULL), objcmp, &dne)); + ok1(!htable_get(&ht, hash(&dne, NULL), objcmp, &dne)); - /* Fill it, it should increase in size (once). */ - add_vals(ht, val, NUM_VALS); - ok1(ht->bits == HTABLE_BASE_BITS + 1); - ok1(ht->max < (1 << ht->bits)); + /* This should increase it once. */ + add_vals(&ht, val, 0, 1); + ok1(ht.bits == 1); + ok1(ht.max == 1); + ok1(ht.common_mask == -1); /* Mask should be set. */ - ok1(ht->common_mask != 0); - ok1(ht->common_mask != -1); - ok1(check_mask(ht, val, NUM_VALS)); + ok1(check_mask(&ht, val, 1)); + + /* This should increase it again. */ + add_vals(&ht, val, 1, 1); + ok1(ht.bits == 2); + ok1(ht.max == 3); + + /* Mask should be set. */ + ok1(ht.common_mask != 0); + ok1(ht.common_mask != -1); + ok1(check_mask(&ht, val, 2)); + + /* Now do the rest. */ + add_vals(&ht, val, 2, NUM_VALS - 2); /* Find all. */ - find_vals(ht, val, NUM_VALS); - ok1(!htable_get(ht, hash(&dne, NULL), objcmp, &dne)); + find_vals(&ht, val, NUM_VALS); + ok1(!htable_get(&ht, hash(&dne, NULL), objcmp, &dne)); /* Walk once, should get them all. */ i = 0; - for (p = htable_first(ht,&iter); p; p = htable_next(ht, &iter)) + for (p = htable_first(&ht,&iter); p; p = htable_next(&ht, &iter)) i++; ok1(i == NUM_VALS); /* Delete all. */ - del_vals(ht, val, NUM_VALS); - ok1(!htable_get(ht, hash(&val[0], NULL), objcmp, &val[0])); + del_vals(&ht, val, NUM_VALS); + ok1(!htable_get(&ht, hash(&val[0], NULL), objcmp, &val[0])); /* Worst case, a "pointer" which doesn't have any matching bits. */ - htable_add(ht, 0, (void *)~(uintptr_t)&val[NUM_VALS-1]); - htable_add(ht, hash(&val[NUM_VALS-1], NULL), &val[NUM_VALS-1]); - ok1(ht->common_mask == 0); - ok1(ht->common_bits == 0); + htable_add(&ht, 0, (void *)~(uintptr_t)&val[NUM_VALS-1]); + htable_add(&ht, hash(&val[NUM_VALS-1], NULL), &val[NUM_VALS-1]); + ok1(ht.common_mask == 0); + ok1(ht.common_bits == 0); /* Get rid of bogus pointer before we trip over it! */ - htable_del(ht, 0, (void *)~(uintptr_t)&val[NUM_VALS-1]); + htable_del(&ht, 0, (void *)~(uintptr_t)&val[NUM_VALS-1]); /* Add the rest. */ - add_vals(ht, val, NUM_VALS-1); + add_vals(&ht, val, 0, NUM_VALS-1); /* Check we can find them all. */ - find_vals(ht, val, NUM_VALS); - ok1(!htable_get(ht, hash(&dne, NULL), objcmp, &dne)); - - htable_free(ht); + find_vals(&ht, val, NUM_VALS); + ok1(!htable_get(&ht, hash(&dne, NULL), objcmp, &dne)); /* Corner cases: wipe out the perfect bit using bogus pointer. */ - ht = htable_new(hash, NULL); - htable_add(ht, 0, (void *)((uintptr_t)&val[NUM_VALS-1])); - ok1(ht->perfect_bit); - perfect_bit = ht->perfect_bit; - htable_add(ht, 0, (void *)((uintptr_t)&val[NUM_VALS-1] + htable_clear(&ht); + htable_add(&ht, 0, (void *)((uintptr_t)&val[NUM_VALS-1])); + ok1(ht.perfect_bit); + perfect_bit = ht.perfect_bit; + htable_add(&ht, 0, (void *)((uintptr_t)&val[NUM_VALS-1] | perfect_bit)); - ok1(ht->perfect_bit == 0); - htable_del(ht, 0, (void *)((uintptr_t)&val[NUM_VALS-1] | perfect_bit)); + ok1(ht.perfect_bit == 0); + htable_del(&ht, 0, (void *)((uintptr_t)&val[NUM_VALS-1] | perfect_bit)); /* Enlarging should restore it... */ - add_vals(ht, val, NUM_VALS-1); + add_vals(&ht, val, 0, NUM_VALS-1); - ok1(ht->perfect_bit != 0); - htable_free(ht); + ok1(ht.perfect_bit != 0); + htable_clear(&ht); return exit_status(); }