return i && !(i & (i - 1));
}
-int vchiu_queue_init(VCHIU_QUEUE_T *queue, int size)
+int vchiu_queue_init(struct vchiu_queue *queue, int size)
{
WARN_ON(!is_pow2(size));
return 1;
}
-void vchiu_queue_delete(VCHIU_QUEUE_T *queue)
+void vchiu_queue_delete(struct vchiu_queue *queue)
{
kfree(queue->storage);
}
-int vchiu_queue_is_empty(VCHIU_QUEUE_T *queue)
+int vchiu_queue_is_empty(struct vchiu_queue *queue)
{
return queue->read == queue->write;
}
-int vchiu_queue_is_full(VCHIU_QUEUE_T *queue)
+int vchiu_queue_is_full(struct vchiu_queue *queue)
{
return queue->write == queue->read + queue->size;
}
-void vchiu_queue_push(VCHIU_QUEUE_T *queue, struct vchiq_header *header)
+void vchiu_queue_push(struct vchiu_queue *queue, struct vchiq_header *header)
{
if (!queue->initialized)
return;
complete(&queue->push);
}
-struct vchiq_header *vchiu_queue_peek(VCHIU_QUEUE_T *queue)
+struct vchiq_header *vchiu_queue_peek(struct vchiu_queue *queue)
{
while (queue->write == queue->read) {
if (wait_for_completion_killable(&queue->push))
return queue->storage[queue->read & (queue->size - 1)];
}
-struct vchiq_header *vchiu_queue_pop(VCHIU_QUEUE_T *queue)
+struct vchiq_header *vchiu_queue_pop(struct vchiu_queue *queue)
{
struct vchiq_header *header;
#include "vchiq_if.h"
-typedef struct {
+struct vchiu_queue {
int size;
int read;
int write;
struct completion push;
struct vchiq_header **storage;
-} VCHIU_QUEUE_T;
+};
-extern int vchiu_queue_init(VCHIU_QUEUE_T *queue, int size);
-extern void vchiu_queue_delete(VCHIU_QUEUE_T *queue);
+extern int vchiu_queue_init(struct vchiu_queue *queue, int size);
+extern void vchiu_queue_delete(struct vchiu_queue *queue);
-extern int vchiu_queue_is_empty(VCHIU_QUEUE_T *queue);
-extern int vchiu_queue_is_full(VCHIU_QUEUE_T *queue);
+extern int vchiu_queue_is_empty(struct vchiu_queue *queue);
+extern int vchiu_queue_is_full(struct vchiu_queue *queue);
-extern void vchiu_queue_push(VCHIU_QUEUE_T *queue, struct vchiq_header *header);
+extern void vchiu_queue_push(struct vchiu_queue *queue,
+ struct vchiq_header *header);
-extern struct vchiq_header *vchiu_queue_peek(VCHIU_QUEUE_T *queue);
-extern struct vchiq_header *vchiu_queue_pop(VCHIU_QUEUE_T *queue);
+extern struct vchiq_header *vchiu_queue_peek(struct vchiu_queue *queue);
+extern struct vchiq_header *vchiu_queue_pop(struct vchiu_queue *queue);
#endif