Lines Matching defs:tail
41 int tail;
42 spinlock_t buffer_lock; /* protects access to buffer, head and tail */
59 * "empty" by having client->head == client->tail.
65 } while (client->head == client->tail);
355 have_event = client->head != client->tail;
357 *event = client->buffer[client->tail++];
358 client->tail &= client->bufsize - 1;
377 if (client->head == client->tail && evdev->exist &&
382 client->head != client->tail || !evdev->exist);
411 if (client->head != client->tail)