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// Jump back and forth between the OS main thread and a new scheduler.
// The OS main scheduler should continue to be available and not terminate
// while it is not in use.
fn main() {
run(100);
}
fn run(i: int) {
log(debug, i);
if i == 0 {
return;
}
do task::task().sched_mode(task::PlatformThread).unlinked().spawn {
task::yield();
do task::task().sched_mode(task::SingleThreaded).unlinked().spawn {
task::yield();
run(i - 1);
task::yield();
}
task::yield();
}
}
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