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#include "test/jemalloc_test.h"
static size_t
zero_reallocs() {
if (!config_stats) {
return 0;
}
size_t count = 12345;
size_t sz = sizeof(count);
expect_d_eq(mallctl("stats.zero_reallocs", (void *)&count, &sz,
NULL, 0), 0, "Unexpected mallctl failure");
return count;
}
TEST_BEGIN(test_zero_reallocs) {
test_skip_if(!config_stats);
for (size_t i = 0; i < 100; ++i) {
void *ptr = mallocx(i * i + 1, 0);
expect_ptr_not_null(ptr, "Unexpected mallocx error");
size_t count = zero_reallocs();
expect_zu_eq(i, count, "Incorrect zero realloc count");
ptr = realloc(ptr, 0);
expect_ptr_null(ptr, "Realloc didn't free");
count = zero_reallocs();
expect_zu_eq(i + 1, count, "Realloc didn't adjust count");
}
}
TEST_END
int
main(void) {
/*
* We expect explicit counts; reentrant tests run multiple times, so
* counts leak across runs.
*/
return test_no_reentrancy(
test_zero_reallocs);
}
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