#include "test/jemalloc

#include "test/jemalloc_test.h"

#include "jemalloc/internal/ctl.h"
#include "jemalloc/internal/hook.h"
#include "jemalloc/internal/util.h"

TEST_BEGIN(test_mallctl_errors) {
uint64_t epoch;
size_t sz;

expect_d_eq(mallctl("no_such_name", NULL, NULL, NULL, 0), ENOENT,
"mallctl() should return ENOENT for non-existent names");

expect_d_eq(mallctl("version", NULL, NULL, "0.0.0", strlen("0.0.0")),
EPERM, "mallctl() should return EPERM on attempt to write "
"read-only value");

expect_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch,
sizeof(epoch)-1), EINVAL,
"mallctl() should return EINVAL for input size mismatch");
expect_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch,
sizeof(epoch)+1), EINVAL,
"mallctl() should return EINVAL for input size mismatch");

sz = sizeof(epoch)-1;
expect_d_eq(mallctl("epoch", (void *)&epoch, &sz, NULL, 0), EINVAL,
"mallctl() should return EINVAL for output size mismatch");
sz = sizeof(epoch)+1;
expect_d_eq(mallctl("epoch", (void *)&epoch, &sz, NULL, 0), EINVAL,
"mallctl() should return EINVAL for output size mismatch");
}
TEST_END

TEST_BEGIN(test_mallctlnametomib_errors) {
size_t mib[1];
size_t miblen;

miblen = sizeof(mib)/sizeof(size_t);
expect_d_eq(mallctlnametomib("no_such_name", mib, &miblen), ENOENT,
"mallctlnametomib() should return ENOENT for non-existent names");
}
TEST_END

TEST_BEGIN(test_mallctlbymib_errors) {
uint64_t epoch;
size_t sz;
size_t mib[1];
size_t miblen;

miblen = sizeof(mib)/sizeof(size_t);
expect_d_eq(mallctlnametomib("version", mib, &miblen), 0,
"Unexpected mallctlnametomib() failure");

expect_d_eq(mallctlbymib(mib, miblen, NULL, NULL, "0.0.0",
strlen("0.0.0")), EPERM, "mallctl() should return EPERM on "
"attempt to write read-only value");

miblen = sizeof(mib)/sizeof(size_t);
expect_d_eq(mallctlnametomib("epoch", mib, &miblen), 0,
"Unexpected mallctlnametomib() failure");

expect_d_eq(mallctlbymib(mib, miblen, NULL, NULL, (void *)&epoch,
sizeof(epoch)-1), EINVAL,
"mallctlbymib() should return EINVAL for input size mismatch");
expect_d_eq(mallctlbymib(mib, miblen, NULL, NULL, (void *)&epoch,
sizeof(epoch)+1), EINVAL,
"mallctlbymib() should return EINVAL for input size mismatch");

sz = sizeof(epoch)-1;
expect_d_eq(mallctlbymib(mib, miblen, (void *)&epoch, &sz, NULL, 0),
EINVAL,
"mallctlbymib() should return EINVAL for output size mismatch");
sz = sizeof(epoch)+1;
expect_d_eq(mallctlbymib(mib, miblen, (void *)&epoch, &sz, NULL, 0),
EINVAL,
"mallctlbymib() should return EINVAL for output size mismatch");
}
TEST_END

TEST_BEGIN(test_mallctl_read_write) {
uint64_t old_epoch, new_epoch;
size_t sz = sizeof(old_epoch);

/* Blind. */
expect_d_eq(mallctl("epoch", NULL, NULL, NULL, 0), 0,
"Unexpected mallctl() failure");
expect_zu_eq(sz, sizeof(old_epoch), "Unexpected output size");

/* Read. */
expect_d_eq(mallctl("epoch", (void *)&old_epoch, &sz, NULL, 0), 0,
"Unexpected mallctl() failure");
expect_zu_eq(sz, sizeof(old_epoch), "Unexpected output size");

/* Write. */
expect_d_eq(mallctl("epoch", NULL, NULL, (void *)&new_epoch,
sizeof(new_epoch)), 0, "Unexpected mallctl() failure");
expect_zu_eq(sz, sizeof(old_epoch), "Unexpected output size");

/* Read+write. */
expect_d_eq(mallctl("epoch", (void *)&old_epoch, &sz,
(void *)&new_epoch, sizeof(new_epoch)), 0,
"Unexpected mallctl() failure");
expect_zu_eq(sz, sizeof(old_epoch), "Unexpected output size");
}
TEST_END

TEST_BEGIN(test_mallctlnametomib_short_mib) {
size_t mib[4];
size_t miblen;

miblen = 3;
mib[3] = 42;
expect_d_eq(mallctlnametomib("arenas.bin.0.nregs", mib, &miblen), 0,
"Unexpected mallctlnametomib() failure");
expect_zu_eq(miblen, 3, "Unexpected mib output length");
expect_zu_eq(mib[3], 42,
"mallctlnametomib() wrote past the end of the input mib");
}
TEST_END

TEST_BEGIN(test_mallctlnametomib_short_name) {
size_t mib[4];
size_t miblen;

miblen = 4;
mib[3] = 42;
expect_d_eq(mallctlnametomib("arenas.bin.0", mib, &miblen), 0,
"Unexpected mallctlnametomib() failure");
expect_zu_eq(miblen, 3, "Unexpected mib output length");
expect_zu_eq(mib[3], 42,
"mallctlnametomib() wrote past the end of the input mib");
}
TEST_END

TEST_BEGIN(test_mallctlmibnametomib) {
size_t mib[4];
size_t miblen = 4;
uint32_t result, result_ref;
size_t len_result = sizeof(uint32_t);

tsd_t *tsd = tsd_fetch();

/* Error cases */
assert_d_eq(ctl_mibnametomib(tsd, mib, 0, "bob", &miblen), ENOENT, "");
assert_zu_eq(miblen, 4, "");
assert_d_eq(ctl_mibnametomib(tsd, mib, 0, "9999", &miblen), ENOENT, "");
assert_zu_eq(miblen, 4, "");

/* Valid case. */
assert_d_eq(ctl_mibnametomib(tsd, mib, 0, "arenas", &miblen), 0, "");
assert_zu_eq(miblen, 1, "");
miblen = 4;
assert_d_eq(ctl_mibnametomib(tsd, mib, 1, "bin", &miblen), 0, "");
assert_zu_eq(miblen, 2, "");
expect_d_eq(mallctlbymib(mib, miblen, &result, &len_result, NULL, 0),
ENOENT, "mallctlbymib() should fail on partial path");

/* Error cases. */
miblen = 4;
assert_d_eq(ctl_mibnametomib(tsd, mib, 2, "bob", &miblen), ENOENT, "");
assert_zu_eq(miblen, 4, "");
assert_d_eq(ctl_mibnametomib(tsd, mib, 2, "9999", &miblen), ENOENT, "");
assert_zu_eq(miblen, 4, "");

/* Valid case. */
assert_d_eq(ctl_mibnametomib(tsd, mib, 2, "0", &miblen), 0, "");
assert_zu_eq(miblen, 3, "");
expect_d_eq(mallctlbymib(mib, miblen, &result, &len_result, NULL, 0),
ENOENT, "mallctlbymib() should fail on partial path");

/* Error cases. */
miblen = 4;
assert_d_eq(ctl_mibnametomib(tsd, mib, 3, "bob", &miblen), ENOENT, "");
assert_zu_eq(miblen, 4, "");
assert_d_eq(ctl_mibnametomib(tsd, mib, 3, "9999", &miblen), ENOENT, "");
assert_zu_eq(miblen, 4, "");

/* Valid case. */
assert_d_eq(ctl_mibnametomib(tsd, mib, 3, "nregs", &miblen), 0, "");
assert_zu_eq(miblen, 4, "");
assert_d_eq(mallctlbymib(mib, miblen, &result, &len_result, NULL, 0),
0, "Unexpected mallctlbymib() failure");
assert_d_eq(mallctl("arenas.bin.0.nregs", &result_ref, &len_result,
NULL, 0), 0, "Unexpected mallctl() failure");
expect_zu_eq(result, result_ref,
"mallctlbymib() and mallctl() returned different result");
}
TEST_END

TEST_BEGIN(test_mallctlbymibname) {
size_t mib[4];
size_t miblen = 4;
uint32_t result, result_ref;
size_t len_result = sizeof(uint32_t);

tsd_t *tsd = tsd_fetch();

/* Error cases. */

assert_d_eq(mallctlnametomib("arenas", mib, &miblen), 0,
"Unexpected mallctlnametomib() failure");
assert_zu_eq(miblen, 1, "");

miblen = 4;
assert_d_eq(ctl_bymibname(tsd, mib, 1, "bin.0", &miblen,
&result, &len_result, NULL, 0), ENOENT, "");
miblen = 4;
assert_d_eq(ctl_bymibname(tsd, mib, 1, "bin.0.bob", &miblen,
&result, &len_result, NULL, 0), ENOENT, "");
assert_zu_eq(miblen, 4, "");

/* Valid cases. */

assert_d_eq(mallctl("arenas.bin.0.nregs", &result_ref, &len_result,
NULL, 0), 0, "Unexpected mallctl() failure");
miblen = 4;

assert_d_eq(ctl_bymibname(tsd, mib, 0, "arenas.bin.0.nregs", &miblen,
&result, &len_result, NULL, 0), 0, "");
assert_zu_eq(miblen, 4, "");
expect_zu_eq(result, result_ref, "Unexpected result");

assert_d_eq(ctl_bymibname(tsd, mib, 1, "bin.0.nregs", &miblen, &result,
&len_result, NULL, 0), 0, "");
assert_zu_eq(miblen, 4, "");
expect_zu_eq(result, result_ref, "Unexpected result");

assert_d_eq(ctl_bymibname(tsd, mib, 2, "0.nregs", &miblen, &result,
&len_result, NULL, 0), 0, "");
assert_zu_eq(miblen, 4, "");
expect_zu_eq(result, result_ref, "Unexpected result");

assert_d_eq(ctl_bymibname(tsd, mib, 3, "nregs", &miblen, &result,
&len_result, NULL, 0), 0, "");
assert_zu_eq(miblen, 4, "");
expect_zu_eq(result, result_ref, "Unexpected result");
}
TEST_END

TEST_BEGIN(test_mallctl_config) {
#define TEST_MALLCTL_CONFIG(config, t) do { \
t oldval; \
size_t sz = sizeof(oldval); \
expect_d_eq(mallctl("config."#config, (void *)&oldval, &sz, \
NULL, 0), 0, "Unexpected mallctl() failure"); \
expect_b_eq(oldval, config_##config, "Incorrect config value"); \
expect_zu_eq(sz, sizeof(oldval), "Unexpected output size"); \
} while (0)

TEST_MALLCTL_CONFIG(cache_oblivious, bool);
TEST_MALLCTL_CONFIG(debug, bool);
TEST_MALLCTL_CONFIG(fill, bool);
TEST_MALLCTL_CONFIG(lazy_lock, bool);
TEST_MALLCTL_CONFIG(malloc_conf, const char *);
TEST_MALLCTL_CONFIG(prof, bool);
TEST_MALLCTL_CONFIG(prof_libgcc, bool);
TEST_MALLCTL_CONFIG(prof_libunwind, bool);
TEST_MALLCTL_CONFIG(stats, bool);
TEST_MALLCTL_CONFIG(utrace, bool);
TEST_MALLCTL_CONFIG(xmalloc, bool);

#undef TEST_MALLCTL_CONFIG
}
TEST_END

TEST_BEGIN(test_mallctl_opt) {
bool config_always = true;

#define TEST_MALLCTL_OPT(t, opt, config) do { \
t oldval; \
size_t sz = sizeof(oldval); \
int expected = config_##config ? 0 : ENOENT; \
int result = mallctl("opt."#opt, (void *)&oldval, &sz, NULL, \
0); \
expect_d_eq(result, expected, \
"Unexpected mallctl() result for opt."#opt); \
expect_zu_eq(sz, sizeof(oldval), "Unexpected output size"); \
} while (0)

TEST_MALLCTL_OPT(bool, abort, always);
TEST_MALLCTL_OPT(bool, abort_conf, always);
TEST_MALLCTL_OPT(bool, cache_oblivious, always);
TEST_MALLCTL_OPT(bool, trust_madvise, always);
TEST_MALLCTL_OPT(bool, confirm_conf, always);
TEST_MALLCTL_OPT(const char *, metadata_thp, always);
TEST_MALLCTL_OPT(bool, retain, always);
TEST_MALLCTL_OPT(const char *, dss, always);
TEST_MALLCTL_OPT(bool, hpa, always);
TEST_MALLCTL_OPT(size_t, hpa_slab_max_alloc, always);
TEST_MALLCTL_OPT(size_t, hpa_sec_nshards, always);
TEST_MALLCTL_OPT(size_t, hpa_sec_max_alloc, always);
TEST_MALLCTL_OPT(size_t, hpa_sec_max_bytes, always);
TEST_MALLCTL_OPT(size_t, hpa_sec_bytes_after_flush, always);
TEST_MALLCTL_OPT(size_t, hpa_sec_batch_fill_extra, always);
TEST_MALLCTL_OPT(unsigned, narenas, always);
TEST_MALLCTL_OPT(const char *, percpu_arena, always);
TEST_MALLCTL_OPT(size_t, oversize_threshold, always);
TEST_MALLCTL_OPT(bool, background_thread, always);
TEST_MALLCTL_OPT(ssize_t, dirty_decay_ms, always);
TEST_MALLCTL_OPT(ssize_t, muzzy_decay_ms, always);
TEST_MALLCTL_OPT(bool, stats_print, always);
TEST_MALLCTL_OPT(const char *, stats_print_opts, always);
TEST_MALLCTL_OPT(int64_t, stats_interval, always);
TEST_MALLCTL_OPT(const char *, stats_interval_opts, always);
TEST_MALLCTL_OPT(const char *, junk, fill);
TEST_MALLCTL_OPT(bool, zero, fill);
TEST_MALLCTL_OPT(bool, utrace, utrace);
TEST_MALLCTL_OPT(bool, xmalloc, xmalloc);
TEST_MALLCTL_OPT(bool, tcache, always);
TEST_MALLCTL_OPT(size_t, lg_extent_max_active_fit, always);
TEST_MALLCTL_OPT(size_t, tcache_max, always);
TEST_MALLCTL_OPT(const char *, thp, always);
TEST_MALLCTL_OPT(const char *, zero_realloc, always);
TEST_MALLCTL_OPT(bool, prof, prof);
TEST_MALLCTL_OPT(const char *, prof_prefix, prof);
TEST_MALLCTL_OPT(bool, prof_active, prof);
TEST_MALLCTL_OPT(ssize_t, lg_prof_sample, prof);
TEST_MALLCTL_OPT(bool, prof_accum, prof);
TEST_MALLCTL_OPT(ssize_t, lg_prof_interval, prof);
TEST_MALLCTL_OPT(bool, prof_gdump, prof);
TEST_MALLCTL_OPT(bool, prof_final, prof);
TEST_MALLCTL_OPT(bool, prof_leak, prof);
TEST_MALLCTL_OPT(bool, prof_leak_error, prof);
TEST_MALLCTL_OPT(ssize_t, prof_recent_alloc_max, prof);
TEST_MALLCTL_OPT(bool, prof_stats, prof);
TEST_MALLCTL_OPT(bool, prof_sys_thread_name, prof);
TEST_MALLCTL_OPT(ssize_t, lg_san_uaf_align, uaf_detection);

#undef TEST_MALLCTL_OPT
}
TEST_END

TEST_BEGIN(test_manpage_example) {
unsigned nbins, i;
size_t mib[4];
size_t len, miblen;

len = sizeof(nbins);
expect_d_eq(mallctl("arenas.nbins", (void *)&nbins, &len, NULL, 0), 0,
"Unexpected mallctl() failure");

miblen = 4;
expect_d_eq(mallctlnametomib("arenas.bin.0.size", mib, &miblen), 0,
"Unexpected mallctlnametomib() failure");
for (i = 0; i < nbins; i++) {
size_t bin_size;

mib[2] = i;
len = sizeof(bin_size);
expect_d_eq(mallctlbymib(mib, miblen, (void *)&bin_size, &len,
NULL, 0), 0, "Unexpected mallctlbymib() failure");
/* Do something with bin_size... */
}
}
TEST_END

TEST_BEGIN(test_tcache_none) {
test_skip_if(!opt_tcache);

/* Allocate p and q. */
void *p0 = mallocx(42, 0);
expect_ptr_not_null(p0, "Unexpected mallocx() failure");
void *q = mallocx(42, 0);
expect_ptr_not_null(q, "Unexpected mallocx() failure");

/* Deallocate p and q, but bypass the tcache for q. */
dallocx(p0, 0);
dallocx(q, MALLOCX_TCACHE_NONE);

/* Make sure that tcache-based allocation returns p, not q. */
void *p1 = mallocx(42, 0);
expect_ptr_not_null(p1, "Unexpected mallocx() failure");
if (!opt_prof && !san_uaf_detection_enabled()) {
expect_ptr_eq(p0, p1,
"Expected tcache to allocate cached region");
}

/* Clean up. */
dallocx(p1, MALLOCX_TCACHE_NONE);
}
TEST_END

TEST_BEGIN(test_tcache) {
#define NTCACHES 10
unsigned tis[NTCACHES];
void *ps[NTCACHES];
void *qs[NTCACHES];
unsigned i;
size_t sz, psz, qsz;

psz = 42;
qsz = nallocx(psz, 0) + 1;

/* Create tcaches. */
for (i = 0; i < NTCACHES; i++) {
sz = sizeof(unsigned);
expect_d_eq(mallctl("tcache.create", (void *)&tis[i], &sz, NULL,
0), 0, "Unexpected mallctl() failure, i=%u", i);
}

/* Exercise tcache ID recycling. */
for (i = 0; i < NTCACHES; i++) {
expect_d_eq(mallctl("tcache.destroy", NULL, NULL,
(void *)&tis[i], sizeof(unsigned)), 0,
"Unexpected mallctl() failure, i=%u", i);
}
for (i = 0; i < NTCACHES; i++) {
sz = sizeof(unsigned);
expect_d_eq(mallctl("tcache.create", (void *)&tis[i], &sz, NULL,
0), 0, "Unexpected mallctl() failure, i=%u", i);
}

/* Flush empty tcaches. */
for (i = 0; i < NTCACHES; i++) {
expect_d_eq(mallctl("tcache.flush", NULL, NULL, (void *)&tis[i],
sizeof(unsigned)), 0, "Unexpected mallctl() failure, i=%u",
i);
}

/* Cache some allocations. */
for (i = 0; i < NTCACHES; i++) {
ps[i] = mallocx(psz, MALLOCX_TCACHE(tis[i]));
expect_ptr_not_null(ps[i], "Unexpected mallocx() failure, i=%u",
i);
dallocx(ps[i], MALLOCX_TCACHE(tis[i]));

qs[i] = mallocx(qsz, MALLOCX_TCACHE(tis[i]));
expect_ptr_not_null(qs[i], "Unexpected mallocx() failure, i=%u",
i);
dallocx(qs[i], MALLOCX_TCACHE(tis[i]));
}

/* Verify that tcaches allocate cached regions. */
for (i = 0; i < NTCACHES; i++) {
void *p0 = ps[i];
ps[i] = mallocx(psz, MALLOCX_TCACHE(tis[i]));
expect_ptr_not_null(ps[i], "Unexpected mallocx() failure, i=%u",
i);
if (!san_uaf_detection_enabled()) {
expect_ptr_eq(ps[i], p0, "Expected mallocx() to "
"allocate cached region, i=%u", i);
}
}

/* Verify that reallocation uses cached regions. */
for (i = 0; i < NTCACHES; i++) {
void *q0 = qs[i];
qs[i] = rallocx(ps[i], qsz, MALLOCX_TCACHE(tis[i]));
expect_ptr_not_null(qs[i], "Unexpected rallocx() failure, i=%u",
i);
if (!san_uaf_detection_enabled()) {
expect_ptr_eq(qs[i], q0, "Expected rallocx() to "
"allocate cached region, i=%u", i);
}
/* Avoid undefined behavior in case of test failure. */
if (qs[i] == NULL) {
qs[i] = ps[i];
}
}
for (i = 0; i < NTCACHES; i++) {
dallocx(qs[i], MALLOCX_TCACHE(tis[i]));
}

/* Flush some non-empty tcaches. */
for (i = 0; i < NTCACHES/2; i++) {
expect_d_eq(mallctl("tcache.flush", NULL, NULL, (void *)&tis[i],
sizeof(unsigned)), 0, "Unexpected mallctl() failure, i=%u",
i);
}

/* Destroy tcaches. */
for (i = 0; i < NTCACHES; i++) {
expect_d_eq(mallctl("tcache.destroy", NULL, NULL,
(void *)&tis[i], sizeof(unsigned)), 0,
"Unexpected mallctl() failure, i=%u", i);
}
}
TEST_END

TEST_BEGIN(test_thread_arena) {
unsigned old_arena_ind, new_arena_ind, narenas;

const char *opa;
size_t sz = sizeof(opa);
expect_d_eq(mallctl("opt.percpu_arena", (void *)&opa, &sz, NULL, 0), 0,
"Unexpected mallctl() failure");

sz = sizeof(unsigned);
expect_d_eq(mallctl("arenas.narenas", (void *)&narenas, &sz, NULL, 0),
0, "Unexpected mallctl() failure");
if (opt_oversize_threshold != 0) {
narenas--;
}
expect_u_eq(narenas, opt_narenas, "Number of arenas incorrect");

if (strcmp(opa, "disabled") == 0) {
new_arena_ind = narenas - 1;
expect_d_eq(mallctl("thread.arena", (void *)&old_arena_ind, &sz,
(void *)&new_arena_ind, sizeof(unsigned)), 0,
"Unexpected mallctl() failure");
new_arena_ind = 0;
expect_d_eq(mallctl("thread.arena", (void *)&old_arena_ind, &sz,
(void *)&new_arena_ind, sizeof(unsigned)), 0,
"Unexpected mallctl() failure");
} else {
expect_d_eq(mallctl("thread.arena", (void *)&old_arena_ind, &sz,
NULL, 0), 0, "Unexpected mallctl() failure");
new_arena_ind = percpu_arena_ind_limit(opt_percpu_arena) - 1;
if (old_arena_ind != new_arena_ind) {
expect_d_eq(mallctl("thread.arena",
(void *)&old_arena_ind, &sz, (void *)&new_arena_ind,
sizeof(unsigned)), EPERM, "thread.arena ctl "
"should not be allowed with percpu arena");
}
}
}
TEST_END

TEST_BEGIN(test_arena_i_initialized) {
unsigned narenas, i;
size_t sz;
size_t mib[3];
size_t miblen = sizeof(mib) / sizeof(size_t);
bool initialized;

sz = sizeof(narenas);
expect_d_eq(mallctl("arenas.narenas", (void *)&narenas, &sz, NULL, 0),
0, "Unexpected mallctl() failure");

expect_d_eq(mallctlnametomib("arena.0.initialized", mib, &miblen), 0,
"Unexpected mallctlnametomib() failure");
for (i = 0; i < narenas; i++) {
mib[1] = i;
sz = sizeof(initialized);
expect_d_eq(mallctlbymib(mib, miblen, &initialized, &sz, NULL,
0), 0, "Unexpected mallctl() failure");
}

mib[1] = MALLCTL_ARENAS_ALL;
sz = sizeof(initialized);
expect_d_eq(mallctlbymib(mib, miblen, &initialized, &sz, NULL, 0), 0,
"Unexpected mallctl() failure");
expect_true(initialized,
"Merged arena statistics should always be initialized");

/* Equivalent to the above but using mallctl() directly. */
sz = sizeof(initialized);
expect_d_eq(mallctl(
"arena." STRINGIFY(MALLCTL_ARENAS_ALL) ".initialized",
(void *)&initialized, &sz, NULL, 0), 0,
"Unexpected mallctl() failure");
expect_true(initialized,
"Merged arena statistics should always be initialized");
}
TEST_END

TEST_BEGIN(test_arena_i_dirty_decay_ms) {
ssize_t dirty_decay_ms, orig_dirty_decay_ms, prev_dirty_decay_ms;
size_t sz = sizeof(ssize_t);

expect_d_eq(mallctl("arena.0.dirty_decay_ms",
(void *)&orig_dirty_decay_ms, &sz, NULL, 0), 0,
"Unexpected mallctl() failure");

dirty_decay_ms = -2;
expect_d_eq(mallctl("arena.0.dirty_decay_ms", NULL, NULL,
(void *)&dirty_decay_ms, sizeof(ssize_t)), EFAULT,
"Unexpected mallctl() success");

dirty_decay_ms = 0x7fffffff;
expect_d_eq(mallctl("arena.0.dirty_decay_ms", NULL, NULL,
(void *)&dirty_decay_ms, sizeof(ssize_t)), 0,
"Unexpected mallctl() failure");

for (prev_dirty_decay_ms = dirty_decay_ms, dirty_decay_ms = -1;
dirty_decay_ms < 20; prev_dirty_decay_ms = dirty_decay_ms,
dirty_decay_ms++) {
ssize_t old_dirty_decay_ms;

expect_d_eq(mallctl("arena.0.dirty_decay_ms",
(void *)&old_dirty_decay_ms, &sz, (void *)&dirty_decay_ms,
sizeof(ssize_t)), 0, "Unexpected mallctl() failure");
expect_zd_eq(old_dirty_decay_ms, prev_dirty_decay_ms,
"Unexpected old arena.0.dirty_decay_ms");
}
}
TEST_END

TEST_BEGIN(test_arena_i_muzzy_decay_ms) {
ssize_t muzzy_decay_ms, orig_muzzy_decay_ms, prev_muzzy_decay_ms;
size_t sz = sizeof(ssize_t);

expect_d_eq(mallctl("arena.0.muzzy_decay_ms",
(void *)&orig_muzzy_decay_ms, &sz, NULL, 0), 0,
"Unexpected mallctl() failure");

muzzy_decay_ms = -2;
expect_d_eq(mallctl("arena.0.muzzy_decay_ms", NULL, NULL,
(void *)&muzzy_decay_ms, sizeof(ssize_t)), EFAULT,
"Unexpected mallctl() success");

muzzy_decay_ms = 0x7fffffff;
expect_d_eq(mallctl("arena.0.muzzy_decay_ms", NULL, NULL,
(void *)&muzzy_decay_ms, sizeof(ssize_t)), 0,
"Unexpected mallctl() failure");

for (prev_muzzy_decay_ms = muzzy_decay_ms, muzzy_decay_ms = -1;
muzzy_decay_ms < 20; prev_muzzy_decay_ms = muzzy_decay_ms,
muzzy_decay_ms++) {
ssize_t old_muzzy_decay_ms;

expect_d_eq(mallctl("arena.0.muzzy_decay_ms",
(void *)&old_muzzy_decay_ms, &sz, (void *)&muzzy_decay_ms,
sizeof(ssize_t)), 0, "Unexpected mallctl() failure");
expect_zd_eq(old_muzzy_decay_ms, prev_muzzy_decay_ms,
"Unexpected old arena.0.muzzy_decay_ms");
}
}
TEST_END

TEST_BEGIN(test_arena_i_purge) {
unsigned narenas;
size_t sz = sizeof(unsigned);
size_t mib[3];
size_t miblen = 3;

expect_d_eq(mallctl("arena.0.purge", NULL, NULL, NULL, 0), 0,
"Unexpected mallctl() failure");

expect_d_eq(mallctl("arenas.narenas", (void *)&narenas, &sz, NULL, 0),
0, "Unexpected mallctl() failure");
expect_d_eq(mallctlnametomib("arena.0.purge", mib, &miblen), 0,
"Unexpected mallctlnametomib() failure");
mib[1] = narenas;
expect_d_eq(mallctlbymib(mib, miblen, NULL, NULL, NULL, 0), 0,
"Unexpected mallctlbymib() failure");

mib[1] = MALLCTL_ARENAS_ALL;
expect_d_eq(mallctlbymib(mib, miblen, NULL, NULL, NULL, 0), 0,
"Unexpected mallctlbymib() failure");
}
TEST_END

TEST_BEGIN(test_arena_i_decay) {
unsigned narenas;
size_t sz = sizeof(unsigned);
size_t mib[3];
size_t miblen = 3;

expect_d_eq(mallctl("arena.0.decay", NULL, NULL, NULL, 0), 0,
"Unexpected mallctl() failure");

expect_d_eq(mallctl("arenas.narenas", (void *)&narenas, &sz, NULL, 0),
0, "Unexpected mallctl() failure");
expect_d_eq(mallctlnametomib("arena.0.decay", mib, &miblen), 0,
"Unexpected mallctlnametomib() failure");
mib[1] = narenas;
expect_d_eq(mallctlbymib(mib, miblen, NULL, NULL, NULL, 0), 0,
"Unexpected mallctlbymib() failure");

mib[1] = MALLCTL_ARENAS_ALL;
expect_d_eq(mallctlbymib(mib, miblen, NULL, NULL, NULL, 0), 0,
"Unexpected mallctlbymib() failure");
}
TEST_END

TEST_BEGIN(test_arena_i_dss) {
const char *dss_prec_old, *dss_prec_new;
size_t sz = sizeof(dss_prec_old);
size_t mib[3];
size_t miblen;

miblen = sizeof(mib)/sizeof(size_t);
expect_d_eq(mallctlnametomib("arena.0.dss", mib, &miblen), 0,
"Unexpected mallctlnametomib() error");

dss_prec_new = "disabled";
expect_d_eq(mallctlbymib(mib, miblen, (void *)&dss_prec_old, &sz,
(void *)&dss_prec_new, sizeof(dss_prec_new)), 0,
"Unexpected mallctl() failure");
expect_str_ne(dss_prec_old, "primary",
"Unexpected default for dss precedence");

expect_d_eq(mallctlbymib(mib, miblen, (void *)&dss_prec_new, &sz,
(void *)&dss_prec_old, sizeof(dss_prec_old)), 0,
"Unexpected mallctl() failure");

expect_d_eq(mallctlbymib(mib, miblen, (void *)&dss_prec_old, &sz, NULL,
0), 0, "Unexpected mallctl() failure");
expect_str_ne(dss_prec_old, "primary",
"Unexpected value for dss precedence");

mib[1] = narenas_total_get();
dss_prec_new = "disabled";
expect_d_eq(mallctlbymib(mib, miblen, (void *)&dss_prec_old, &sz,
(void *)&dss_prec_new, sizeof(dss_prec_new)), 0,
"Unexpected mallctl() failure");
expect_str_ne(dss_prec_old, "primary",
"Unexpected default for dss precedence");

expect_d_eq(mallctlbymib(mib, miblen, (void *)&dss_prec_new, &sz,
(void *)&dss_prec_old, sizeof(dss_prec_new)), 0,
"Unexpected mallctl() failure");

expect_d_eq(mallctlbymib(mib, miblen, (void *)&dss_prec_old, &sz, NULL,
0), 0, "Unexpected mallctl() failure");
expect_str_ne(dss_prec_old, "primary",
"Unexpected value for dss precedence");
}
TEST_END

TEST_BEGIN(test_arena_i_retain_grow_limit) {
size_t old_limit, new_limit, default_limit;
size_t mib[3];
size_t miblen;

bool retain_enabled;
size_t sz = sizeof(retain_enabled);
expect_d_eq(mallctl("opt.retain", &retain_enabled, &sz, NULL, 0),
0, "Unexpected mallctl() failure");
test_skip_if(!retain_enabled);

sz = sizeof(default_limit);
miblen = sizeof(mib)/sizeof(size_t);
expect_d_eq(mallctlnametomib("arena.0.retain_grow_limit", mib, &miblen),
0, "Unexpected mallctlnametomib() error");

expect_d_eq(mallctlbymib(mib, miblen, &default_limit, &sz, NULL, 0), 0,
"Unexpected mallctl() failure");
expect_zu_eq(default_limit, SC_LARGE_MAXCLASS,
"Unexpected default for retain_grow_limit");

new_limit = PAGE - 1;
expect_d_eq(mallctlbymib(mib, miblen, NULL, NULL, &new_limit,
sizeof(new_limit)), EFAULT, "Unexpected mallctl() success");

new_limit = PAGE + 1;
expect_d_eq(mallctlbymib(mib, miblen, NULL, NULL, &new_limit,
sizeof(new_limit)), 0, "Unexpected mallctl() failure");
expect_d_eq(mallctlbymib(mib, miblen, &old_limit, &sz, NULL, 0), 0,
"Unexpected mallctl() failure");
expect_zu_eq(old_limit, PAGE,
"Unexpected value for retain_grow_limit");

/* Expect grow less than psize class 10. */
new_limit = sz_pind2sz(10) - 1;
expect_d_eq(mallctlbymib(mib, miblen, NULL, NULL, &new_limit,
sizeof(new_limit)), 0, "Unexpected mallctl() failure");
expect_d_eq(mallctlbymib(mib, miblen, &old_limit, &sz, NULL, 0), 0,
"Unexpected mallctl() failure");
expect_zu_eq(old_limit, sz_pind2sz(9),
"Unexpected value for retain_grow_limit");

/* Restore to default. */
expect_d_eq(mallctlbymib(mib, miblen, NULL, NULL, &default_limit,
sizeof(default_limit)), 0, "Unexpected mallctl() failure");
}
TEST_END

TEST_BEGIN(test_arenas_dirty_decay_ms) {
ssize_t dirty_decay_ms, orig_dirty_decay_ms, prev_dirty_decay_ms;
size_t sz = sizeof(ssize_t);

expect_d_eq(mallctl("arenas.dirty_decay_ms",
(void *)&orig_dirty_decay_ms, &sz, NULL, 0), 0,
"Unexpected mallctl() failure");

dirty_decay_ms = -2;
expect_d_eq(mallctl("arenas.dirty_decay_ms", NULL, NULL,
(void *)&dirty_decay_ms, sizeof(ssize_t)), EFAULT,
"Unexpected mallctl() success");

dirty_decay_ms = 0x7fffffff;
expect_d_eq(mallctl("arenas.dirty_decay_ms", NULL, NULL,
(void *)&dirty_decay_ms, sizeof(ssize_t)), 0,
"Expected mallctl() failure");

for (prev_dirty_decay_ms = dirty_decay_ms, dirty_decay_ms = -1;
dirty_decay_ms < 20; prev_dirty_decay_ms = dirty_decay_ms,
dirty_decay_ms++) {
ssize_t old_dirty_decay_ms;

expect_d_eq(mallctl("arenas.dirty_decay_ms",
(void *)&old_dirty_decay_ms, &sz, (void *)&dirty_decay_ms,
sizeof(ssize_t)), 0, "Unexpected mallctl() failure");
expect_zd_eq(old_dirty_decay_ms, prev_dirty_decay_ms,
"Unexpected old arenas.dirty_decay_ms");
}
}
TEST_END

TEST_BEGIN(test_arenas_muzzy_decay_ms) {
ssize_t muzzy_decay_ms, orig_muzzy_decay_ms, prev_muzzy_decay_ms;
size_t sz = sizeof(ssize_t);

expect_d_eq(mallctl("arenas.muzzy_decay_ms",
(void *)&orig_muzzy_decay_ms, &sz, NULL, 0), 0,
"Unexpected mallctl() failure");

muzzy_decay_ms = -2;
expect_d_eq(mallctl("arenas.muzzy_decay_ms", NULL, NULL,
(void *)&muzzy_decay_ms, sizeof(ssize_t)), EFAULT,
"Unexpected mallctl() success");

muzzy_decay_ms = 0x7fffffff;
expect_d_eq(mallctl("arenas.muzzy_decay_ms", NULL, NULL,
(void *)&muzzy_decay_ms, sizeof(ssize_t)), 0,
"Expected mallctl() failure");

for (prev_muzzy_decay_ms = muzzy_decay_ms, muzzy_decay_ms = -1;
muzzy_decay_ms < 20; prev_muzzy_decay_ms = muzzy_decay_ms,
muzzy_decay_ms++) {
ssize_t old_muzzy_decay_ms;

expect_d_eq(mallctl("arenas.muzzy_decay_ms",
(void *)&old_muzzy_decay_ms, &sz, (void *)&muzzy_decay_ms,
sizeof(ssize_t)), 0, "Unexpected mallctl() failure");
expect_zd_eq(old_muzzy_decay_ms, prev_muzzy_decay_ms,
"Unexpected old arenas.muzzy_decay_ms");
}
}
TEST_END

TEST_BEGIN(test_arenas_constants) {
#define TEST_ARENAS_CONSTANT(t, name, expected) do { \
t name; \
size_t sz = sizeof(t); \
expect_d_eq(mallctl("arenas."#name, (void *)&name, &sz, NULL, \
0), 0, "Unexpected mallctl() failure"); \
expect_zu_eq(name, expected, "Incorrect "#name" size"); \
} while (0)

TEST_ARENAS_CONSTANT(size_t, quantum, QUANTUM);
TEST_ARENAS_CONSTANT(size_t, page, PAGE);
TEST_ARENAS_CONSTANT(unsigned, nbins, SC_NBINS);
TEST_ARENAS_CONSTANT(unsigned, nlextents, SC_NSIZES - SC_NBINS);

#undef TEST_ARENAS_CONSTANT
}
TEST_END

TEST_BEGIN(test_arenas_bin_constants) {
#define TEST_ARENAS_BIN_CONSTANT(t, name, expected) do { \
t name; \
size_t sz = sizeof(t); \
expect_d_eq(mallctl("arenas.bin.0."#name, (void *)&name, &sz, \
NULL, 0), 0, "Unexpected mallctl() failure"); \
expect_zu_eq(name, expected, "Incorrect "#name" size"); \
} while (0)

TEST_ARENAS_BIN_CONSTANT(size_t, size, bin_infos[0].reg_size);
TEST_ARENAS_BIN_CONSTANT(uint32_t, nregs, bin_infos[0].nregs);
TEST_ARENAS_BIN_CONSTANT(size_t, slab_size,
bin_infos[0].slab_size);
TEST_ARENAS_BIN_CONSTANT(uint32_t, nshards, bin_infos[0].n_shards);

#undef TEST_ARENAS_BIN_CONSTANT
}
TEST_END

TEST_BEGIN(test_arenas_lextent_constants) {
#define TEST_ARENAS_LEXTENT_CONSTANT(t, name, expected) do { \
t name; \
size_t sz = sizeof(t); \
expect_d_eq(mallctl("arenas.lextent.0."#name, (void *)&name, \
&sz, NULL, 0), 0, "Unexpected mallctl() failure"); \
expect_zu_eq(name, expected, "Incorrect "#name" size"); \
} while (0)

TEST_ARENAS_LEXTENT_CONSTANT(size_t, size,
SC_LARGE_MINCLASS);

#undef TEST_ARENAS_LEXTENT_CONSTANT
}
TEST_END

TEST_BEGIN(test_arenas_create) {
unsigned narenas_before, arena, narenas_after;
size_t sz = sizeof(unsigned);

expect_d_eq(mallctl("arenas.narenas", (void *)&narenas_before, &sz,
NULL, 0), 0, "Unexpected mallctl() failure");
expect_d_eq(mallctl("arenas.create", (void *)&arena, &sz, NULL, 0), 0,
"Unexpected mallctl() failure");
expect_d_eq(mallctl("arenas.narenas", (void *)&narenas_after, &sz, NULL,
0), 0, "Unexpected mallctl() failure");

expect_u_eq(narenas_before+1, narenas_after,
"Unexpected number of arenas before versus after extension");
expect_u_eq(arena, narenas_after-1, "Unexpected arena index");
}
TEST_END

TEST_BEGIN(test_arenas_lookup) {
unsigned arena, arena1;
void *ptr;
size_t sz = sizeof(unsigned);

expect_d_eq(mallctl("arenas.create", (void *)&arena, &sz, NULL, 0), 0,
"Unexpected mallctl() failure");
ptr = mallocx(42, MALLOCX_ARENA(arena) | MALLOCX_TCACHE_NONE);
expect_ptr_not_null(ptr, "Unexpected mallocx() failure");
expect_d_eq(mallctl("arenas.lookup", &arena1, &sz, &ptr, sizeof(ptr)),
0, "Unexpected mallctl() failure");
expect_u_eq(arena, arena1, "Unexpected arena index");
dallocx(ptr, 0);
}
TEST_END

TEST_BEGIN(test_prof_active) {
/*
* If config_prof is off, then the test for prof_active in
* test_mallctl_opt was already enough.
*/
test_skip_if(!config_prof);
test_skip_if(opt_prof);

bool active, old;
size_t len = sizeof(bool);

active = true;
expect_d_eq(mallctl("prof.active", NULL, NULL, &active, len), ENOENT,
"Setting prof_active to true should fail when opt_prof is off");
old = true;
expect_d_eq(mallctl("prof.active", &old, &len, &active, len), ENOENT,
"Setting prof_active to true should fail when opt_prof is off");
expect_true(old, "old value should not be touched when mallctl fails");
active = false;
expect_d_eq(mallctl("prof.active", NULL, NULL, &active, len), 0,
"Setting prof_active to false should succeed when opt_prof is off");
expect_d_eq(mallctl("prof.active", &old, &len, &active, len), 0,
"Setting prof_active to false should succeed when opt_prof is off");
expect_false(old, "prof_active should be false when opt_prof is off");
}
TEST_END

TEST_BEGIN(test_stats_arenas) {
#define TEST_STATS_ARENAS(t, name) do { \
t name; \
size_t sz = sizeof(t); \
expect_d_eq(mallctl("stats.arenas.0."#name, (void *)&name, &sz, \
NULL, 0), 0, "Unexpected mallctl() failure"); \
} while (0)

TEST_STATS_ARENAS(unsigned, nthreads);
TEST_STATS_ARENAS(const char *, dss);
TEST_STATS_ARENAS(ssize_t, dirty_decay_ms);
TEST_STATS_ARENAS(ssize_t, muzzy_decay_ms);
TEST_STATS_ARENAS(size_t, pactive);
TEST_STATS_ARENAS(size_t, pdirty);

#undef TEST_STATS_ARENAS
}
TEST_END

static void
alloc_hook(void *extra, UNUSED hook_alloc_t type, UNUSED void *result,
UNUSED uintptr_t result_raw, UNUSED uintptr_t args_raw[3]) {
*(bool *)extra = true;
}

static void
dalloc_hook(void *extra, UNUSED hook_dalloc_t type,
UNUSED void *address, UNUSED uintptr_t args_raw[3]) {
*(bool *)extra = true;
}

TEST_BEGIN(test_hooks) {
bool hook_called = false;
hooks_t hooks = {&alloc_hook, &dalloc_hook, NULL, &hook_called};
void *handle = NULL;
size_t sz = sizeof(handle);
int err = mallctl("experimental.hooks.install", &handle, &sz, &hooks,
sizeof(hooks));
expect_d_eq(err, 0, "Hook installation failed");
expect_ptr_ne(handle, NULL, "Hook installation gave null handle");
void *ptr = mallocx(1, 0);
expect_true(hook_called, "Alloc hook not called");
hook_called = false;
free(ptr);
expect_true(hook_called, "Free hook not called");

err = mallctl("experimental.hooks.remove", NULL, NULL, &handle,
sizeof(handle));
expect_d_eq(err, 0, "Hook removal failed");
hook_called = false;
ptr = mallocx(1, 0);
free(ptr);
expect_false(hook_called, "Hook called after removal");
}
TEST_END

TEST_BEGIN(test_hooks_exhaustion) {
bool hook_called = false;
hooks_t hooks = {&alloc_hook, &dalloc_hook, NULL, &hook_called};

void *handle;
void *handles[HOOK_MAX];
size_t sz = sizeof(handle);
int err;
for (int i = 0; i < HOOK_MAX; i++) {
handle = NULL;
err = mallctl("experimental.hooks.install", &handle, &sz,
&hooks, sizeof(hooks));
expect_d_eq(err, 0, "Error installation hooks");
expect_ptr_ne(handle, NULL, "Got NULL handle");
handles[i] = handle;
}
err = mallctl("experimental.hooks.install", &handle, &sz, &hooks,
sizeof(hooks));
expect_d_eq(err, EAGAIN, "Should have failed hook installation");
for (int i = 0; i < HOOK_MAX; i++) {
err = mallctl("experimental.hooks.remove", NULL, NULL,
&handles[i], sizeof(handles[i]));
expect_d_eq(err, 0, "Hook removal failed");
}
/* Insertion failed, but then we removed some; it should work now. */
handle = NULL;
err = mallctl("experimental.hooks.install", &handle, &sz, &hooks,
sizeof(hooks));
expect_d_eq(err, 0, "Hook insertion failed");
expect_ptr_ne(handle, NULL, "Got NULL handle");
err = mallctl("experimental.hooks.remove", NULL, NULL, &handle,
sizeof(handle));
expect_d_eq(err, 0, "Hook removal failed");
}
TEST_END

TEST_BEGIN(test_thread_idle) {
/*
* We're cheating a little bit in this test, and inferring things about
* implementation internals (like tcache details). We have to;
* thread.idle has no guaranteed effects. We need stats to make these
* inferences.
*/
test_skip_if(!config_stats);

int err;
size_t sz;
size_t miblen;

bool tcache_enabled = false;
sz = sizeof(tcache_enabled);
err = mallctl("thread.tcache.enabled", &tcache_enabled, &sz, NULL, 0);
expect_d_eq(err, 0, "");
test_skip_if(!tcache_enabled);

size_t tcache_max;
sz = sizeof(tcache_max);
err = mallctl("arenas.tcache_max", &tcache_max, &sz, NULL, 0);
expect_d_eq(err, 0, "");
test_skip_if(tcache_max == 0);

unsigned arena_ind;
sz = sizeof(arena_ind);
err = mallctl("thread.arena", &arena_ind, &sz, NULL, 0);
expect_d_eq(err, 0, "");

/* We're going to do an allocation of size 1, which we know is small. */
size_t mib[5];
miblen = sizeof(mib)/sizeof(mib[0]);
err = mallctlnametomib("stats.arenas.0.small.ndalloc", mib, &miblen);
expect_d_eq(err, 0, "");
mib[2] = arena_ind;

/*
* This alloc and dalloc should leave something in the tcache, in a
* small size's cache bin.
*/
void *ptr = mallocx(1, 0);
dallocx(ptr, 0);

uint64_t epoch;
err = mallctl("epoch", NULL, NULL, &epoch, sizeof(epoch));
expect_d_eq(err, 0, "");

uint64_t small_dalloc_pre_idle;
sz = sizeof(small_dalloc_pre_idle);
err = mallctlbymib(mib, miblen, &small_dalloc_pre_idle, &sz, NULL, 0);
expect_d_eq(err, 0, "");

err = mallctl("thread.idle", NULL, NULL, NULL, 0);
expect_d_eq(err, 0, "");

err = mallctl("epoch", NULL, NULL, &epoch, sizeof(epoch));
expect_d_eq(err, 0, "");

uint64_t small_dalloc_post_idle;
sz = sizeof(small_dalloc_post_idle);
err = mallctlbymib(mib, miblen, &small_dalloc_post_idle, &sz, NULL, 0);
expect_d_eq(err, 0, "");

expect_u64_lt(small_dalloc_pre_idle, small_dalloc_post_idle,
"Purge didn't flush the tcache");
}
TEST_END

TEST_BEGIN(test_thread_peak) {
test_skip_if(!config_stats);

/*
* We don't commit to any stable amount of accuracy for peak tracking
* (in practice, when this test was written, we made sure to be within
* 100k). But 10MB is big for more or less any definition of big.
*/
size_t big_size = 10 * 1024 * 1024;
size_t small_size = 256;

void *ptr;
int err;
size_t sz;
uint64_t peak;
sz = sizeof(uint64_t);

err = mallctl("thread.peak.reset", NULL, NULL, NULL, 0);
expect_d_eq(err, 0, "");
ptr = mallocx(SC_SMALL_MAXCLASS, 0);
err = mallctl("thread.peak.read", &peak, &sz, NULL, 0);
expect_d_eq(err, 0, "");
expect_u64_eq(peak, SC_SMALL_MAXCLASS, "Missed an update");
free(ptr);
err = mallctl("thread.peak.read", &peak, &sz, NULL, 0);
expect_d_eq(err, 0, "");
expect_u64_eq(peak, SC_SMALL_MAXCLASS, "Freeing changed peak");
ptr = mallocx(big_size, 0);
free(ptr);
/*
* The peak should have hit big_size in the last two lines, even though
* the net allocated bytes has since dropped back down to zero. We
* should have noticed the peak change without having down any mallctl
* calls while net allocated bytes was high.
*/
err = mallctl("thread.peak.read", &peak, &sz, NULL, 0);
expect_d_eq(err, 0, "");
expect_u64_ge(peak, big_size, "Missed a peak change.");

/* Allocate big_size, but using small allocations. */
size_t nallocs = big_size / small_size;
void **ptrs = calloc(nallocs, sizeof(void *));
err = mallctl("thread.peak.reset", NULL, NULL, NULL, 0);
expect_d_eq(err, 0, "");
err = mallctl("thread.peak.read", &peak, &sz, NULL, 0);
expect_d_eq(err, 0, "");
expect_u64_eq(0, peak, "Missed a reset.");
for (size_t i = 0; i < nallocs; i++) {
ptrs[i] = mallocx(small_size, 0);
}
for (size_t i = 0; i < nallocs; i++) {
free(ptrs[i]);
}
err = mallctl("thread.peak.read", &peak, &sz, NULL, 0);
expect_d_eq(err, 0, "");
/*
* We don't guarantee exactness; make sure we're within 10% of the peak,
* though.
*/
expect_u64_ge(peak, nallocx(small_size, 0) * nallocs * 9 / 10,
"Missed some peak changes.");
expect_u64_le(peak, nallocx(small_size, 0) * nallocs * 11 / 10,
"Overcounted peak changes.");
free(ptrs);
}
TEST_END

typedef struct activity_test_data_s activity_test_data_t;
struct activity_test_data_s {
uint64_t obtained_alloc;
uint64_t obtained_dalloc;
};

static void
activity_test_callback(void *uctx, uint64_t alloc, uint64_t dalloc) {
activity_test_data_t *test_data = (activity_test_data_t *)uctx;
test_data->obtained_alloc = alloc;
test_data->obtained_dalloc = dalloc;
}

TEST_BEGIN(test_thread_activity_callback) {
test_skip_if(!config_stats);

const size_t big_size = 10 * 1024 * 1024;
void *ptr;
int err;
size_t sz;

uint64_t *allocatedp;
uint64_t *deallocatedp;
sz = sizeof(allocatedp);
err = mallctl("thread.allocatedp", &allocatedp, &sz, NULL, 0);
assert_d_eq(0, err, "");
err = mallctl("thread.deallocatedp", &deallocatedp, &sz, NULL, 0);
assert_d_eq(0, err, "");

activity_callback_thunk_t old_thunk = {(activity_callback_t)111,
(void *)222};

activity_test_data_t test_data = {333, 444};
activity_callback_thunk_t new_thunk =
{&activity_test_callback, &test_data};

sz = sizeof(old_thunk);
err = mallctl("experimental.thread.activity_callback", &old_thunk, &sz,
&new_thunk, sizeof(new_thunk));
assert_d_eq(0, err, "");

expect_true(old_thunk.callback == NULL, "Callback already installed");
expect_true(old_thunk.uctx == NULL, "Callback data already installed");

ptr = mallocx(big_size, 0);
expect_u64_eq(test_data.obtained_alloc, *allocatedp, "");
expect_u64_eq(test_data.obtained_dalloc, *deallocatedp, "");

free(ptr);
expect_u64_eq(test_data.obtained_alloc, *allocatedp, "");
expect_u64_eq(test_data.obtained_dalloc, *deallocatedp, "");

sz = sizeof(old_thunk);
new_thunk = (activity_callback_thunk_t){ NULL, NULL };
err = mallctl("experimental.thread.activity_callback", &old_thunk, &sz,
&new_thunk, sizeof(new_thunk));
assert_d_eq(0, err, "");

expect_true(old_thunk.callback == &activity_test_callback, "");
expect_true(old_thunk.uctx == &test_data, "");

/* Inserting NULL should have turned off tracking. */
test_data.obtained_alloc = 333;
test_data.obtained_dalloc = 444;
ptr = mallocx(big_size, 0);
free(ptr);
expect_u64_eq(333, test_data.obtained_alloc, "");
expect_u64_eq(444, test_data.obtained_dalloc, "");
}
TEST_END

int
main(void) {
return test(
test_mallctl_errors,
test_mallctlnametomib_errors,
test_mallctlbymib_errors,
test_mallctl_read_write,
test_mallctlnametomib_short_mib,
test_mallctlnametomib_short_name,
test_mallctlmibnametomib,
test_mallctlbymibname,
test_mallctl_config,
test_mallctl_opt,
test_manpage_example,
test_tcache_none,
test_tcache,
test_thread_arena,
test_arena_i_initialized,
test_arena_i_dirty_decay_ms,
test_arena_i_muzzy_decay_ms,
test_arena_i_purge,
test_arena_i_decay,
test_arena_i_dss,
test_arena_i_retain_grow_limit,
test_arenas_dirty_decay_ms,
test_arenas_muzzy_decay_ms,
test_arenas_constants,
test_arenas_bin_constants,
test_arenas_lextent_constants,
test_arenas_create,
test_arenas_lookup,
test_prof_active,
test_stats_arenas,
test_hooks,
test_hooks_exhaustion,
test_thread_idle,
test_thread_peak,
test_thread_activity_callback);
}