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#include "test/jemalloc_test.h"
#include "test/extent_hooks.h"
static extent_hooks_t hooks_null = {
extent_alloc_hook,
NULL, /* dalloc */
NULL, /* destroy */
NULL, /* commit */
NULL, /* decommit */
NULL, /* purge_lazy */
NULL, /* purge_forced */
NULL, /* split */
NULL /* merge */
};
static extent_hooks_t hooks_not_null = {
extent_alloc_hook,
extent_dalloc_hook,
extent_destroy_hook,
NULL, /* commit */
extent_decommit_hook,
extent_purge_lazy_hook,
extent_purge_forced_hook,
NULL, /* split */
NULL /* merge */
};
TEST_BEGIN(test_base_hooks_default) {
base_t *base;
size_t allocated0, allocated1, resident, mapped, n_thp;
tsdn_t *tsdn = tsd_tsdn(tsd_fetch());
base = base_new(tsdn, 0, (extent_hooks_t *)&extent_hooks_default);
if (config_stats) {
base_stats_get(tsdn, base, &allocated0, &resident, &mapped,
&n_thp);
assert_zu_ge(allocated0, sizeof(base_t),
"Base header should count as allocated");
if (opt_metadata_thp == metadata_thp_always) {
assert_zu_gt(n_thp, 0,
"Base should have 1 THP at least.");
}
}
assert_ptr_not_null(base_alloc(tsdn, base, 42, 1),
"Unexpected base_alloc() failure");
if (config_stats) {
base_stats_get(tsdn, base, &allocated1, &resident, &mapped,
&n_thp);
assert_zu_ge(allocated1 - allocated0, 42,
"At least 42 bytes were allocated by base_alloc()");
}
base_delete(tsdn, base);
}
TEST_END
TEST_BEGIN(test_base_hooks_null) {
extent_hooks_t hooks_orig;
base_t *base;
size_t allocated0, allocated1, resident, mapped, n_thp;
extent_hooks_prep();
try_dalloc = false;
try_destroy = true;
try_decommit = false;
try_purge_lazy = false;
try_purge_forced = false;
memcpy(&hooks_orig, &hooks, sizeof(extent_hooks_t));
memcpy(&hooks, &hooks_null, sizeof(extent_hooks_t));
tsdn_t *tsdn = tsd_tsdn(tsd_fetch());
base = base_new(tsdn, 0, &hooks);
assert_ptr_not_null(base, "Unexpected base_new() failure");
if (config_stats) {
base_stats_get(tsdn, base, &allocated0, &resident, &mapped,
&n_thp);
assert_zu_ge(allocated0, sizeof(base_t),
"Base header should count as allocated");
if (opt_metadata_thp == metadata_thp_always) {
assert_zu_gt(n_thp, 0,
"Base should have 1 THP at least.");
}
}
assert_ptr_not_null(base_alloc(tsdn, base, 42, 1),
"Unexpected base_alloc() failure");
if (config_stats) {
base_stats_get(tsdn, base, &allocated1, &resident, &mapped,
&n_thp);
assert_zu_ge(allocated1 - allocated0, 42,
"At least 42 bytes were allocated by base_alloc()");
}
base_delete(tsdn, base);
memcpy(&hooks, &hooks_orig, sizeof(extent_hooks_t));
}
TEST_END
TEST_BEGIN(test_base_hooks_not_null) {
extent_hooks_t hooks_orig;
base_t *base;
void *p, *q, *r, *r_exp;
extent_hooks_prep();
try_dalloc = false;
try_destroy = true;
try_decommit = false;
try_purge_lazy = false;
try_purge_forced = false;
memcpy(&hooks_orig, &hooks, sizeof(extent_hooks_t));
memcpy(&hooks, &hooks_not_null, sizeof(extent_hooks_t));
tsdn_t *tsdn = tsd_tsdn(tsd_fetch());
did_alloc = false;
base = base_new(tsdn, 0, &hooks);
assert_ptr_not_null(base, "Unexpected base_new() failure");
assert_true(did_alloc, "Expected alloc");
/*
* Check for tight packing at specified alignment under simple
* conditions.
*/
{
const size_t alignments[] = {
1,
QUANTUM,
QUANTUM << 1,
CACHELINE,
CACHELINE << 1,
};
unsigned i;
for (i = 0; i < sizeof(alignments) / sizeof(size_t); i++) {
size_t alignment = alignments[i];
size_t align_ceil = ALIGNMENT_CEILING(alignment,
QUANTUM);
p = base_alloc(tsdn, base, 1, alignment);
assert_ptr_not_null(p,
"Unexpected base_alloc() failure");
assert_ptr_eq(p,
(void *)(ALIGNMENT_CEILING((uintptr_t)p,
alignment)), "Expected quantum alignment");
q = base_alloc(tsdn, base, alignment, alignment);
assert_ptr_not_null(q,
"Unexpected base_alloc() failure");
assert_ptr_eq((void *)((uintptr_t)p + align_ceil), q,
"Minimal allocation should take up %zu bytes",
align_ceil);
r = base_alloc(tsdn, base, 1, alignment);
assert_ptr_not_null(r,
"Unexpected base_alloc() failure");
assert_ptr_eq((void *)((uintptr_t)q + align_ceil), r,
"Minimal allocation should take up %zu bytes",
align_ceil);
}
}
/*
* Allocate an object that cannot fit in the first block, then verify
* that the first block's remaining space is considered for subsequent
* allocation.
*/
assert_zu_ge(extent_bsize_get(&base->blocks->extent), QUANTUM,
"Remainder insufficient for test");
/* Use up all but one quantum of block. */
while (extent_bsize_get(&base->blocks->extent) > QUANTUM) {
p = base_alloc(tsdn, base, QUANTUM, QUANTUM);
assert_ptr_not_null(p, "Unexpected base_alloc() failure");
}
r_exp = extent_addr_get(&base->blocks->extent);
assert_zu_eq(base->extent_sn_next, 1, "One extant block expected");
q = base_alloc(tsdn, base, QUANTUM + 1, QUANTUM);
assert_ptr_not_null(q, "Unexpected base_alloc() failure");
assert_ptr_ne(q, r_exp, "Expected allocation from new block");
assert_zu_eq(base->extent_sn_next, 2, "Two extant blocks expected");
r = base_alloc(tsdn, base, QUANTUM, QUANTUM);
assert_ptr_not_null(r, "Unexpected base_alloc() failure");
assert_ptr_eq(r, r_exp, "Expected allocation from first block");
assert_zu_eq(base->extent_sn_next, 2, "Two extant blocks expected");
/*
* Check for proper alignment support when normal blocks are too small.
*/
{
const size_t alignments[] = {
HUGEPAGE,
HUGEPAGE << 1
};
unsigned i;
for (i = 0; i < sizeof(alignments) / sizeof(size_t); i++) {
size_t alignment = alignments[i];
p = base_alloc(tsdn, base, QUANTUM, alignment);
assert_ptr_not_null(p,
"Unexpected base_alloc() failure");
assert_ptr_eq(p,
(void *)(ALIGNMENT_CEILING((uintptr_t)p,
alignment)), "Expected %zu-byte alignment",
alignment);
}
}
called_dalloc = called_destroy = called_decommit = called_purge_lazy =
called_purge_forced = false;
base_delete(tsdn, base);
assert_true(called_dalloc, "Expected dalloc call");
assert_true(!called_destroy, "Unexpected destroy call");
assert_true(called_decommit, "Expected decommit call");
assert_true(called_purge_lazy, "Expected purge_lazy call");
assert_true(called_purge_forced, "Expected purge_forced call");
try_dalloc = true;
try_destroy = true;
try_decommit = true;
try_purge_lazy = true;
try_purge_forced = true;
memcpy(&hooks, &hooks_orig, sizeof(extent_hooks_t));
}
TEST_END
int
main(void) {
return test(
test_base_hooks_default,
test_base_hooks_null,
test_base_hooks_not_null);
}
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