Function task_create

kernel/generic/src/proc/task.c:198–261

Create new task with no threads. * * @param as Task's address space. * @param name Symbolic name (a copy is made). * * @return New task's structure. * */

 *
 */
task_t *task_create(as_t *as, const char *name)
{
	task_t *task = (task_t *) slab_alloc(task_cache, FRAME_ATOMIC);
	if (!task)
		return NULL;

	task_create_arch(task);

	task->as = as;
	str_cpy(task->name, TASK_NAME_BUFLEN, name);

	task->container = CONTAINER;
	task->perms = 0;
	task->ucycles = 0;
	task->kcycles = 0;

	caps_task_init(task);

	task->ipc_info.call_sent = 0;
	task->ipc_info.call_received = 0;
	task->ipc_info.answer_sent = 0;
	task->ipc_info.answer_received = 0;
	task->ipc_info.irq_notif_received = 0;
	task->ipc_info.forwarded = 0;

	event_task_init(task);

	task->answerbox.active = true;

#ifdef CONFIG_UDEBUG
	/* Init debugging stuff */
	udebug_task_init(&task->udebug);

	/* Init kbox stuff */
	task->kb.box.active = true;
	task->kb.finished = false;
#endif

	if ((ipc_box_0) &&
	    (container_check(ipc_box_0->task->container, task->container))) {
		cap_phone_handle_t phone_handle;
		errno_t rc = phone_alloc(task, true, &phone_handle, NULL);
		if (rc != EOK) {
			task->as = NULL;
			task_destroy_arch(task);
			slab_free(task_cache, task);
			return NULL;
		}

		kobject_t *phone_obj = kobject_get(task, phone_handle,
		    KOBJECT_TYPE_PHONE);
		(void) ipc_phone_connect(phone_obj->phone, ipc_box_0);
	}

	irq_spinlock_lock(&tasks_lock, true);

	task->taskid = ++task_counter;
	odlink_initialize(&task->ltasks);