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https://github.com/darlinghq/darling-xnu.git
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238 lines
8.0 KiB
C
238 lines
8.0 KiB
C
/* test that the header doesn't implicitly depend on others */
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#include <sys/work_interval.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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#include <err.h>
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#include <string.h>
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#include <pthread.h>
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#include <mach/mach.h>
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#include <darwintest.h>
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T_GLOBAL_META(T_META_NAMESPACE("xnu.scheduler"),
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T_META_RUN_CONCURRENTLY(true));
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static mach_port_t port = MACH_PORT_NULL;
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static void *
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joining_thread_fn(__unused void *arg)
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{
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int ret = 0;
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kern_return_t kr = KERN_SUCCESS;
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ret = work_interval_join_port(port);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_join_port, another thread");
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kr = mach_port_deallocate(mach_task_self(), port);
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T_ASSERT_MACH_SUCCESS(kr, "mach_port_deallocate of port, another thread");
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/* deliberately exit with joined work interval */
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return NULL;
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}
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T_DECL(work_interval, "work interval interface")
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{
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int ret = 0;
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work_interval_t handle = NULL;
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uint64_t now = mach_absolute_time();
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kern_return_t kr = KERN_SUCCESS;
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ret = work_interval_create(NULL, 0);
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T_ASSERT_EQ(errno, EINVAL, "create with null errno EINVAL");
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T_ASSERT_EQ(ret, -1, "create with null returns -1");
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/* Binary must be entitled for this to succeed */
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ret = work_interval_create(&handle, 0);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_create, no flags");
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ret = work_interval_copy_port(handle, &port);
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T_ASSERT_EQ(errno, EINVAL, "work_interval_copy_port on non-joinable interval errno EINVAL");
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T_ASSERT_EQ(ret, -1, "work_interval_copy_port on non-joinable interval returns -1");
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ret = work_interval_notify(handle, now - 1000, now, now + 1000, now + 2000, 0);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_notify, no flags");
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ret = work_interval_destroy(handle);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_destroy, no flags");
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uint32_t flags[] = {
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WORK_INTERVAL_FLAG_JOINABLE,
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WORK_INTERVAL_FLAG_JOINABLE | WORK_INTERVAL_FLAG_GROUP,
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};
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for (uint32_t i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
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ret = work_interval_create(&handle, flags[i]);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_create, joinable");
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ret = work_interval_copy_port(handle, &port);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_copy_port, joinable");
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ret = work_interval_notify(handle, now - 1000, now, now + 1000, now + 2000, 0);
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T_ASSERT_EQ(ret, -1, "work_interval_notify on non-joined thread returns -1");
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T_ASSERT_EQ(errno, EINVAL, "work_interval_copy_port on non-joined thread errno EINVAL");
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ret = work_interval_join_port(port);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_join_port, joinable");
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ret = work_interval_notify(handle, now - 1000, now, now + 1000, now + 2000, 0);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_notify, on joined thread");
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ret = work_interval_join_port(port);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_join_port, join the same interval after destroy");
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kr = mach_port_deallocate(mach_task_self(), port);
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T_ASSERT_MACH_SUCCESS(kr, "mach_port_deallocate of port");
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ret = work_interval_notify(handle, now - 1000, now, now + 1000, now + 2000, 0);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_notify, on joined thread after destroy");
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ret = work_interval_destroy(handle);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_destroy, joinable, on joined thread");
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ret = work_interval_leave();
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_leave, on destroyed work interval");
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}
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ret = work_interval_create(&handle, WORK_INTERVAL_FLAG_JOINABLE | WORK_INTERVAL_FLAG_GROUP);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_create, joinable");
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ret = work_interval_copy_port(handle, &port);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_copy_port, joinable");
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ret = work_interval_join_port(port);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_join_port, join before handing to another thread");
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pthread_t joining_thread;
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T_ASSERT_POSIX_ZERO(pthread_create(&joining_thread, NULL, joining_thread_fn, NULL), "pthread_create");
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T_ASSERT_POSIX_ZERO(pthread_join(joining_thread, NULL), "pthread_join");
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ret = work_interval_leave();
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_leave");
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ret = work_interval_destroy(handle);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_destroy");
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}
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static mach_timebase_info_data_t timebase_info;
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static uint64_t
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nanos_to_abs(uint64_t nanos)
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{
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mach_timebase_info(&timebase_info);
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return nanos * timebase_info.denom / timebase_info.numer;
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}
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static void
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set_realtime(pthread_t thread)
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{
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kern_return_t kr;
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thread_time_constraint_policy_data_t pol;
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mach_port_t target_thread = pthread_mach_thread_np(thread);
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T_ASSERT_NOTNULL(target_thread, "pthread_mach_thread_np");
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/* 1s 100ms 10ms */
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pol.period = (uint32_t)nanos_to_abs(1000000000);
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pol.constraint = (uint32_t)nanos_to_abs(100000000);
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pol.computation = (uint32_t)nanos_to_abs(10000000);
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pol.preemptible = 0; /* Ignored by OS */
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kr = thread_policy_set(target_thread, THREAD_TIME_CONSTRAINT_POLICY, (thread_policy_t) &pol,
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THREAD_TIME_CONSTRAINT_POLICY_COUNT);
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T_ASSERT_MACH_SUCCESS(kr, "thread_policy_set(THREAD_TIME_CONSTRAINT_POLICY)");
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}
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static void
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set_nonrealtime(pthread_t thread)
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{
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kern_return_t kr;
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thread_standard_policy_data_t pol = {0};
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mach_port_t target_thread = pthread_mach_thread_np(thread);
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T_ASSERT_NOTNULL(target_thread, "pthread_mach_thread_np");
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kr = thread_policy_set(target_thread, THREAD_STANDARD_POLICY, (thread_policy_t) &pol,
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THREAD_STANDARD_POLICY_COUNT);
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T_ASSERT_MACH_SUCCESS(kr, "thread_policy_set(THREAD_STANDARD_POLICY)");
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}
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T_DECL(work_interval_audio_realtime_only, "joining RT threads to audio work interval", T_META_ASROOT(YES))
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{
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int ret = 0;
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work_interval_t handle = NULL;
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kern_return_t kr = KERN_SUCCESS;
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uint32_t flags = WORK_INTERVAL_FLAG_GROUP | WORK_INTERVAL_FLAG_JOINABLE | WORK_INTERVAL_TYPE_COREAUDIO;
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ret = work_interval_create(&handle, flags);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_create, joinable");
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ret = work_interval_copy_port(handle, &port);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_copy_port, joinable");
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ret = work_interval_join_port(port);
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T_EXPECT_POSIX_FAILURE(ret, EINVAL, "work_interval_join_port for audio on non-RT thread");
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set_realtime(pthread_self());
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ret = work_interval_join_port(port);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_join_port for audio on RT thread");
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ret = work_interval_leave();
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_leave");
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ret = work_interval_destroy(handle);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_destroy");
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kr = mach_port_deallocate(mach_task_self(), port);
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T_ASSERT_MACH_SUCCESS(kr, "mach_port_deallocate of port");
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set_nonrealtime(pthread_self());
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}
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T_DECL(work_interval_get_flags, "querying a port for create flags")
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{
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int ret = 0;
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work_interval_t handle = NULL;
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uint32_t flags = WORK_INTERVAL_FLAG_JOINABLE | WORK_INTERVAL_FLAG_GROUP | WORK_INTERVAL_TYPE_COREAUDIO;
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ret = work_interval_create(&handle, flags);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_create(AUDIO)");
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ret = work_interval_copy_port(handle, &port);
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T_ASSERT_POSIX_SUCCESS(ret, "work_interval_copy_port");
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T_ASSERT_TRUE(MACH_PORT_VALID(port), "port from copy port is a valid port");
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uint32_t expected_flags = 0;
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ret = work_interval_get_flags_from_port(port, &expected_flags);
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T_ASSERT_EQ(ret, 0, "work_interval_get_flags_from_port");
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T_ASSERT_EQ(expected_flags, flags, "Flags match with what work interval was created with");
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mach_port_mod_refs(mach_task_self(), port, MACH_PORT_RIGHT_SEND, -1);
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work_interval_destroy(handle);
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// Negative test
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mach_port_t fake_port = MACH_PORT_NULL;
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ret = mach_port_allocate(mach_task_self(), MACH_PORT_RIGHT_RECEIVE, &fake_port);
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T_ASSERT_EQ(ret, 0, "successfully allocated a port");
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T_ASSERT_TRUE(MACH_PORT_VALID(fake_port), "allocated port is valid");
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ret = mach_port_insert_right(mach_task_self(), fake_port, fake_port, MACH_MSG_TYPE_MAKE_SEND);
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T_ASSERT_EQ(ret, 0, "successfully inserted a send right");
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ret = work_interval_get_flags_from_port(fake_port, &expected_flags);
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T_ASSERT_EQ(ret, -1, "query port failed as expected");
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mach_port_mod_refs(mach_task_self(), fake_port, MACH_PORT_RIGHT_SEND, -1);
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mach_port_mod_refs(mach_task_self(), fake_port, MACH_PORT_RIGHT_RECEIVE, -1);
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}
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