libswfdec/swfdec_ringbuffer.h

   1
   2 #ifndef __SWFDEC_RING_BUFFER_H__
   3 #define __SWFDEC_RING_BUFFER_H__
   4
   5 #include <glib.h>
   6
   7 G_BEGIN_DECLS
   8
   9
  10 typedef struct _SwfdecRingBuffer SwfdecRingBuffer;
  11
  12 struct _SwfdecRingBuffer
  13 {
  14   unsigned char *       data;           /* our data */
  15   gsize                 element_size;   /* size of one element */
  16   guint                 size;           /* number of elements in the buffer */
  17
  18   guint                 head;           /* index of first element */
  19   guint                 tail;           /* index after last element */
  20   guint                 n_elements;     /* number of elements in ringbuffer */
  21 };
  22
  23 SwfdecRingBuffer *      swfdec_ring_buffer_new          (guint                  element_size,
  24                                                          guint                  size);
  25 #define swfdec_ring_buffer_new_for_type(element_type,size) \
  26   swfdec_ring_buffer_new (sizeof (element_type), (size))
  27 void                    swfdec_ring_buffer_free         (SwfdecRingBuffer *     buffer);
  28
  29 guint                   swfdec_ring_buffer_get_size     (SwfdecRingBuffer *     buffer);
  30 void                    swfdec_ring_buffer_set_size     (SwfdecRingBuffer *     buffer,
  31                                                          guint                  new_size);
  32 guint                   swfdec_ring_buffer_get_n_elements (SwfdecRingBuffer *   buffer);
  33
  34 gpointer                swfdec_ring_buffer_push         (SwfdecRingBuffer *     buffer);
  35 gpointer                swfdec_ring_buffer_pop          (SwfdecRingBuffer *     buffer);
  36 gpointer                swfdec_ring_buffer_peek_nth     (SwfdecRingBuffer *     buffer,
  37                                                          guint                  id);
  38
  39 G_END_DECLS
  40
  41 #endif