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 *
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 *
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 * @param t Task to be destroyed.
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 * @param t Task to be destroyed.
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 */
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 */
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void task_destroy(task_t *t)
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void task_destroy(task_t *t)
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{
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{
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    spinlock_lock(&tasks_lock);
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    btree_remove(&tasks_btree, t->taskid, NULL);
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    spinlock_unlock(&tasks_lock);
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    task_destroy_arch(t);
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    btree_destroy(&t->futexes);
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    mutex_lock_active(&t->as->lock);
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    if (--t->as->refcount == 0) {
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        mutex_unlock(&t->as->lock);
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        as_destroy(t->as);
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        /*
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         * t->as is destroyed.
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         */
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    } else {
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        mutex_unlock(&t->as->lock);
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    }
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    free(t);
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    TASK = NULL;
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}
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}
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/** Create new task with 1 thread and run it
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/** Create new task with 1 thread and run it
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 *
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 *
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 * @param program_addr Address of program executable image.
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 * @param program_addr Address of program executable image.
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    }
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    }
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    spinlock_lock(&ta->lock);
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    spinlock_lock(&ta->lock);
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    ta->refcount++;
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    ta->refcount++;
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    spinlock_unlock(&ta->lock);
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    spinlock_unlock(&ta->lock);
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    spinlock_unlock(&tasks_lock);
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    t = thread_create(ktaskclnp, NULL, ta, 0, "ktaskclnp");
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    t = thread_create(ktaskclnp, NULL, ta, 0, "ktaskclnp");
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    spinlock_lock(&ta->lock);
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    spinlock_lock(&ta->lock);
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    ta->accept_new_threads = false;
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    ta->accept_new_threads = false;