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     * threads.
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     * threads.
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     */
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     */
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    SPINLOCK_DECLARE(lock);
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    SPINLOCK_DECLARE(lock);
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    char *name;
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    char *name;
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    /** Pointer to the main thread. */
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    struct thread *main_thread;
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    /** List of threads contained in this task. */
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    /** List of threads contained in this task. */
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    link_t th_head;
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    link_t th_head;
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    /** Address space. */
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    /** Address space. */
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    as_t *as;
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    as_t *as;
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    /** Unique identity of task. */
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    /** Unique identity of task. */
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    task_id_t taskid;
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    task_id_t taskid;
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    /** Task security context. */
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    /** Task security context. */
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    context_id_t context;  
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    context_id_t context;  
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    /** If this is true, new threads can become part of the task. */
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    bool accept_new_threads;
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    /** Number of references (i.e. threads). */
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    /** Number of references (i.e. threads). */
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    count_t refcount;  
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    atomic_t refcount;
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    /** Number of threads that haven't exited yet. */
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    atomic_t lifecount;
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    /** Task capabilities. */
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    /** Task capabilities. */
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    cap_t capabilities;
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    cap_t capabilities;
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    /* IPC stuff */
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    /* IPC stuff */
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extern uint64_t task_get_accounting(task_t *t);
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extern uint64_t task_get_accounting(task_t *t);
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extern void cap_set(task_t *t, cap_t caps);
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extern void cap_set(task_t *t, cap_t caps);
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extern cap_t cap_get(task_t *t);
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extern cap_t cap_get(task_t *t);
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#ifndef task_create_arch
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#ifndef task_create_arch
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extern void task_create_arch(task_t *t);
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extern void task_create_arch(task_t *t);
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#endif
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#endif
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#ifndef task_destroy_arch
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#ifndef task_destroy_arch