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Avoid atomic operations for dependent rtree reads.

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This commit is contained in:
Jason Evans
2015-05-15 17:02:30 -07:00
parent c451831264
commit fd5f9e43c3
5 changed files with 43 additions and 26 deletions
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28
test/unit/rtree.c
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@@ -22,7 +22,7 @@ TEST_BEGIN(test_rtree_get_empty)
rtree_t rtree;
assert_false(rtree_new(&rtree, i, node_alloc, node_dalloc),
"Unexpected rtree_new() failure");
assert_ptr_null(rtree_get(&rtree, 0),
assert_ptr_null(rtree_get(&rtree, 0, false),
"rtree_get() should return NULL for empty tree");
rtree_delete(&rtree);
}
@@ -40,11 +40,11 @@ TEST_BEGIN(test_rtree_extrema)
"Unexpected rtree_new() failure");
rtree_set(&rtree, 0, &node_a);
assert_ptr_eq(rtree_get(&rtree, 0), &node_a,
assert_ptr_eq(rtree_get(&rtree, 0, true), &node_a,
"rtree_get() should return previously set value");
rtree_set(&rtree, ~((uintptr_t)0), &node_b);
assert_ptr_eq(rtree_get(&rtree, ~((uintptr_t)0)), &node_b,
assert_ptr_eq(rtree_get(&rtree, ~((uintptr_t)0), true), &node_b,
"rtree_get() should return previously set value");
rtree_delete(&rtree);
@@ -68,15 +68,15 @@ TEST_BEGIN(test_rtree_bits)
for (j = 0; j < sizeof(keys)/sizeof(uintptr_t); j++) {
rtree_set(&rtree, keys[j], &node);
for (k = 0; k < sizeof(keys)/sizeof(uintptr_t); k++) {
assert_ptr_eq(rtree_get(&rtree, keys[k]), &node,
"rtree_get() should return previously set "
"value and ignore insignificant key bits; "
"i=%u, j=%u, k=%u, set key=%#"PRIxPTR", "
"get key=%#"PRIxPTR, i, j, k, keys[j],
keys[k]);
assert_ptr_eq(rtree_get(&rtree, keys[k], true),
&node, "rtree_get() should return "
"previously set value and ignore "
"insignificant key bits; i=%u, j=%u, k=%u, "
"set key=%#"PRIxPTR", get key=%#"PRIxPTR, i,
j, k, keys[j], keys[k]);
}
assert_ptr_null(rtree_get(&rtree,
(((uintptr_t)1) << (sizeof(uintptr_t)*8-i))),
(((uintptr_t)1) << (sizeof(uintptr_t)*8-i)), false),
"Only leftmost rtree leaf should be set; "
"i=%u, j=%u", i, j);
rtree_set(&rtree, keys[j], NULL);
@@ -107,21 +107,21 @@ TEST_BEGIN(test_rtree_random)
for (j = 0; j < NSET; j++) {
keys[j] = (uintptr_t)gen_rand64(sfmt);
rtree_set(&rtree, keys[j], &node);
assert_ptr_eq(rtree_get(&rtree, keys[j]), &node,
assert_ptr_eq(rtree_get(&rtree, keys[j], true), &node,
"rtree_get() should return previously set value");
}
for (j = 0; j < NSET; j++) {
assert_ptr_eq(rtree_get(&rtree, keys[j]), &node,
assert_ptr_eq(rtree_get(&rtree, keys[j], true), &node,
"rtree_get() should return previously set value");
}
for (j = 0; j < NSET; j++) {
rtree_set(&rtree, keys[j], NULL);
assert_ptr_null(rtree_get(&rtree, keys[j]),
assert_ptr_null(rtree_get(&rtree, keys[j], true),
"rtree_get() should return previously set value");
}
for (j = 0; j < NSET; j++) {
assert_ptr_null(rtree_get(&rtree, keys[j]),
assert_ptr_null(rtree_get(&rtree, keys[j], true),
"rtree_get() should return previously set value");
}