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#include <udebug/udebug_ipc.h>
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#include <udebug/udebug_ipc.h>
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#include <ipc/kbox.h>
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#include <ipc/kbox.h>
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void ipc_kbox_cleanup(void)
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void ipc_kbox_cleanup(void)
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{
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{
- 
 
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    ipl_t ipl;
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    bool have_kb_thread;
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    bool have_kb_thread;
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    /* Only hold kb_cleanup_lock while setting kb_finished - this is enough */
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    /* Only hold kb_cleanup_lock while setting kb_finished - this is enough */
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    mutex_lock(&TASK->kb_cleanup_lock);
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    mutex_lock(&TASK->kb_cleanup_lock);
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    TASK->kb_finished = true;
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    TASK->kb_finished = true;
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     * notify_box causes a HANGUP message to be inserted for each
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     * notify_box causes a HANGUP message to be inserted for each
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     * disconnected phone. This ensures the kbox thread is going to
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     * disconnected phone. This ensures the kbox thread is going to
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     * wake up and terminate.
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     * wake up and terminate.
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     */
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     */
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    ipc_answerbox_slam_phones(&TASK->kernel_box, have_kb_thread);
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    ipc_answerbox_slam_phones(&TASK->kernel_box, have_kb_thread);
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    /*
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     * If the task was being debugged, clean up debugging session.
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     * This is necessarry as slamming the phones won't force
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     * kbox thread to clean it up since sender != debugger.
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     */
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    ipl = interrupts_disable();
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    spinlock_lock(&TASK->lock);
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    udebug_task_cleanup(TASK);
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    spinlock_unlock(&TASK->lock);
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    interrupts_restore(ipl);
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    if (have_kb_thread) {
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    if (have_kb_thread) {
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        LOG("join kb_thread..\n");
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        LOG("join kb_thread..\n");
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        thread_join(TASK->kb_thread);
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        thread_join(TASK->kb_thread);
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        thread_detach(TASK->kb_thread);
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        thread_detach(TASK->kb_thread);
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                ipl = interrupts_disable();
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                ipl = interrupts_disable();
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                spinlock_lock(&TASK->lock);
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                spinlock_lock(&TASK->lock);
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                spinlock_lock(&TASK->answerbox.lock);
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                spinlock_lock(&TASK->answerbox.lock);
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                if (list_empty(&TASK->answerbox.connected_phones)) {
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                if (list_empty(&TASK->answerbox.connected_phones)) {
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                    /*
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                    /* Last phone has been disconnected */
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                     * Last phone has been disconnected.
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                     */
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                    /* Detach thread so it gets freed. */
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                    thread_detach(TASK->kb_thread);
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                    TASK->kb_thread = NULL;
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                    TASK->kb_thread = NULL;
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                    done = true;
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                    done = true;
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                    LOG("phone list is empty\n");
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                    LOG("phone list is empty\n");
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                }
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                }
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                spinlock_unlock(&TASK->answerbox.lock);
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                spinlock_unlock(&TASK->answerbox.lock);