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Rev 624 Rev 703
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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#include <proc/thread.h>
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#include <proc/thread.h>
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#include <proc/task.h>
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#include <proc/task.h>
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#include <mm/vm.h>
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#include <mm/as.h>
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#include <mm/heap.h>
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#include <mm/heap.h>
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#include <synch/spinlock.h>
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#include <synch/spinlock.h>
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#include <arch.h>
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#include <arch.h>
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#include <panic.h>
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#include <panic.h>
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/** Create new task
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/** Create new task
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 *
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 *
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 * Create new task with no threads.
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 * Create new task with no threads.
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 *
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 *
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 * @param m Task's virtual memory structure.
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 * @param as Task's address space.
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 *
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 *
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 * @return New task's structure on success, NULL on failure.
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 * @return New task's structure on success, NULL on failure.
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 *
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 *
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 */
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 */
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task_t *task_create(vm_t *m)
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task_t *task_create(as_t *as)
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{
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{
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    ipl_t ipl;
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    ipl_t ipl;
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    task_t *ta;
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    task_t *ta;
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    ta = (task_t *) malloc(sizeof(task_t));
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    ta = (task_t *) malloc(sizeof(task_t));
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    if (ta) {
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    if (ta) {
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        spinlock_initialize(&ta->lock, "task_ta_lock");
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        spinlock_initialize(&ta->lock, "task_ta_lock");
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        list_initialize(&ta->th_head);
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        list_initialize(&ta->th_head);
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        list_initialize(&ta->tasks_link);
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        list_initialize(&ta->tasks_link);
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        ta->vm = m;
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        ta->as = as;
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        ipl = interrupts_disable();
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        ipl = interrupts_disable();
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        spinlock_lock(&tasks_lock);
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        spinlock_lock(&tasks_lock);
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        list_append(&ta->tasks_link, &tasks_head);
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        list_append(&ta->tasks_link, &tasks_head);
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        spinlock_unlock(&tasks_lock);
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        spinlock_unlock(&tasks_lock);