static void wait (struct intq *q, struct thread **waiter);
static void signal (struct intq *q, struct thread **waiter);
-/* Initializes interrupt queue Q, naming it NAME (for debugging
- purposes). */
+/* Initializes interrupt queue Q. */
void
-intq_init (struct intq *q, const char *name)
+intq_init (struct intq *q)
{
- lock_init (&q->lock, name);
+ lock_init (&q->lock);
q->not_full = q->not_empty = NULL;
q->head = q->tail = 0;
}
}
/* Removes a byte from Q and returns it.
- Q must not be empty if called from an interrupt handler.
- Otherwise, if Q is empty, first sleeps until a byte is
- added. */
+ If Q is empty, sleeps until a byte is added.
+ When called from an interrupt handler, Q must not be empty. */
uint8_t
intq_getc (struct intq *q)
{
}
/* Adds BYTE to the end of Q.
- Q must not be full if called from an interrupt handler.
- Otherwise, if Q is full, first sleeps until a byte is
- removed. */
+ If Q is full, sleeps until a byte is removed.
+ When called from an interrupt handler, Q must not be full. */
void
intq_putc (struct intq *q, uint8_t byte)
{
/* WAITER must be the address of Q's not_empty or not_full
member. Waits until the given condition is true. */
static void
-wait (struct intq *q, struct thread **waiter)
+wait (struct intq *q UNUSED, struct thread **waiter)
{
ASSERT (!intr_context ());
ASSERT (intr_get_level () == INTR_OFF);
thread is waiting for the condition, wakes it up and resets
the waiting thread. */
static void
-signal (struct intq *q, struct thread **waiter)
+signal (struct intq *q UNUSED, struct thread **waiter)
{
ASSERT (intr_get_level () == INTR_OFF);
ASSERT ((waiter == &q->not_empty && !intq_empty (q))