/*
* Internal routine to terminate a thread.
* Sometimes called with task already locked.
*/
kern_return_t
thread_terminate_internal(
thread_t thread)
{
kern_return_t result = KERN_SUCCESS;
thread_mtx_lock(thread);
if (thread->active) {
thread->active = FALSE;
act_abort(thread);
if (thread->started)
clear_wait(thread, THREAD_INTERRUPTED);
else {
thread_start_internal(thread);
}
}
else
result = KERN_TERMINATED;
if (thread->affinity_set != NULL)
thread_affinity_terminate(thread);
thread_mtx_unlock(thread);
if (thread != current_thread() && result == KERN_SUCCESS)
thread_wait(thread, FALSE);
return (result);
}
kern_return_t
thread_abort(
register thread_t thread)
{
kern_return_t result = KERN_SUCCESS;
if (thread == THREAD_NULL)
return (KERN_INVALID_ARGUMENT);
thread_mtx_lock(thread);
if (thread->active) {
act_abort(thread);
clear_wait(thread, THREAD_INTERRUPTED);
}
else
result = KERN_TERMINATED;
thread_mtx_unlock(thread);
return (result);
}
/*
* Internal routine to terminate a thread.
* Sometimes called with task already locked.
*/
kern_return_t
thread_terminate_internal(
register thread_act_t act)
{
kern_return_t result;
thread_t thread;
thread = act_lock_thread(act);
if (!act->active) {
act_unlock_thread(act);
return (KERN_TERMINATED);
}
act_disable(act);
result = act_abort(act, FALSE);
/*
* Make sure this thread enters the kernel
* Must unlock the act, but leave the shuttle
* captured in this act.
*/
if (thread != current_thread()) {
act_unlock(act);
if (thread_stop(thread))
thread_unstop(thread);
else
result = KERN_ABORTED;
act_lock(act);
}
clear_wait(thread, act->started? THREAD_INTERRUPTED: THREAD_AWAKENED);
act_unlock_thread(act);
return (result);
}
kern_return_t
thread_abort(
register thread_act_t act)
{
kern_return_t result;
thread_t thread;
if (act == THR_ACT_NULL)
return (KERN_INVALID_ARGUMENT);
thread = act_lock_thread(act);
if (!act->active) {
act_unlock_thread(act);
return (KERN_TERMINATED);
}
result = act_abort(act, FALSE);
clear_wait(thread, THREAD_INTERRUPTED);
act_unlock_thread(act);
return (result);
}
