public static void LockOSThreadMain()
{
// This requires GOMAXPROCS=1 from the beginning to reliably
// start a goroutine on the main thread.
if (runtime.GOMAXPROCS(-1L) != 1L)
{
println("requires GOMAXPROCS=1");
os.Exit(1L);
}
var ready = make_channel <bool>(1L);
go_(() => () =>
{
// Because GOMAXPROCS=1, this *should* be on the main
// thread. Stay there.
runtime.LockOSThread();
var self = C.pthread_self();
if (C.pthread_equal(mainThread, self) == 0L)
{
println("failed to start goroutine on main thread");
os.Exit(1L);
}
// Exit with the thread locked, which should exit the
// main thread.
ready.Send(true);
} ());
ready.Receive();
time.Sleep(1L * time.Millisecond);
// Check that this goroutine is still running on a different
// thread.
self = C.pthread_self();
if (C.pthread_equal(mainThread, self) != 0L)
{
println("goroutine migrated to locked thread");
os.Exit(1L);
}
println("OK");
}