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Added different paths of exiting for pager and its children.

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Created a task_dead list on pager for children to move to when
they exit.
This commit is contained in:
Bahadir Balban
2009-10-30 12:00:05 +02:00
parent a6c61e05b9
commit 26aa62d2ea
8 changed files with 120 additions and 28 deletions
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23
src/api/thread.c
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@@ -183,23 +183,32 @@ void thread_destroy_current(void)
{
struct ktcb *task, *n;
/* Suspend all threads under control of this pager */
spin_lock(&curcont->ktcb_list.list_lock);
/* Signal death to all threads under control of this pager */
mutex_lock(&curcont->ktcb_list.list_lock);
list_foreach_removable_struct(task, n,
&curcont->ktcb_list.list,
task_list) {
if (task->tid == current->tid ||
task->pagerid != current->tid)
continue;
spin_unlock(&curcont->ktcb_list.list_lock);
mutex_unlock(&curcont->ktcb_list.list_lock);
/* Here we wait for each to die */
thread_suspend(task, TASK_EXITING);
spin_lock(&curcont->ktcb_list.list_lock);
mutex_lock(&curcont->ktcb_list.list_lock);
}
spin_unlock(&curcont->ktcb_list.list_lock);
mutex_unlock(&curcont->ktcb_list.list_lock);
/* Indicate we want to become zombie on suspend */
current->flags |= TASK_EXITING;
/* Destroy all children */
mutex_lock(&current->task_dead.list_lock);
list_foreach_removable_struct(task, n,
&current->task_dead.list,
task_list) {
tcb_delete(task);
}
mutex_unlock(&current->task_dead.list_lock);
/* Destroy self */
sched_die_sync();
}