zone_gc_replenish_test.c [plain text]
#include <sys/sysctl.h>
#include <time.h>
#include <darwintest.h>
#include <darwintest_utils.h>
static void *
gc_thread_func(__unused void *arg)
{
int err;
unsigned int count = 1;
size_t s = sizeof(count);
time_t start = time(NULL);
time_t end = time(NULL);
while (time(&end) < start + 15) {
err = sysctlbyname("kern.zone_gc_replenish_test", &count, &s, &count, s);
if (err != 0) {
T_SKIP("sysctl kern.zone_gc_replenish_test not found, skipping test");
break;
}
}
return NULL;
}
static void *
alloc_thread_func(__unused void *arg)
{
int err;
unsigned int count = 1;
size_t s = sizeof(count);
time_t start = time(NULL);
time_t end = time(NULL);
while (time(&end) < start + 15) {
err = sysctlbyname("kern.zone_alloc_replenish_test", &count, &s, &count, s);
if (err != 0) {
T_SKIP("sysctl kern.zone_alloc_replenish_test not found, skipping test");
break;
}
}
return NULL;
}
T_DECL(zone_gc_replenish_test,
"Test zone garbage collection, exhaustion and replenishment",
T_META_NAMESPACE("xnu.vm"),
T_META_CHECK_LEAKS(false))
{
pthread_attr_t attr;
pthread_t gc_thread;
pthread_t alloc_thread;
int ret;
ret = pthread_attr_init(&attr);
T_QUIET; T_ASSERT_MACH_SUCCESS(ret, "pthread_attr_init");
ret = pthread_create(&gc_thread, &attr, gc_thread_func, NULL);
T_QUIET; T_ASSERT_POSIX_ZERO(ret, "gc pthread_create");
ret = pthread_create(&alloc_thread, &attr, alloc_thread_func, NULL);
T_QUIET; T_ASSERT_POSIX_ZERO(ret, "alloc pthread_create");
T_ASSERT_POSIX_ZERO(pthread_join(gc_thread, NULL), NULL);
T_ASSERT_POSIX_ZERO(pthread_join(alloc_thread, NULL), NULL);
T_PASS("Ran 15 seconds with no panic");
}