Move ring buffer out of toxcore/util into toxav.

Toxcore itself doesn't use this data structure. Only toxav does, so now
toxav owns the code for it.

1 files changed, 0 insertions, 90 deletions

diff --git a/toxcore/util.c b/toxcore/util.c
index 93a3d436..25068db6 100644
--- a/toxcore/util.c
+++ b/toxcore/util.c
@@ -193,93 +193,3 @@ int create_recursive_mutex(pthread_mutex_t *mutex)
 
     return 0;
 }
-
-
-struct RingBuffer {
-    uint16_t size; /* Max size */
-    uint16_t start;
-    uint16_t end;
-    void   **data;
-};
-
-bool rb_full(const RingBuffer *b)
-{
-    return (b->end + 1) % b->size == b->start;
-}
-bool rb_empty(const RingBuffer *b)
-{
-    return b->end == b->start;
-}
-void *rb_write(RingBuffer *b, void *p)
-{
-    void *rc = NULL;
-
-    if ((b->end + 1) % b->size == b->start) { /* full */
-        rc = b->data[b->start];
-    }
-
-    b->data[b->end] = p;
-    b->end = (b->end + 1) % b->size;
-
-    if (b->end == b->start) {
-        b->start = (b->start + 1) % b->size;
-    }
-
-    return rc;
-}
-bool rb_read(RingBuffer *b, void **p)
-{
-    if (b->end == b->start) { /* Empty */
-        *p = NULL;
-        return false;
-    }
-
-    *p = b->data[b->start];
-    b->start = (b->start + 1) % b->size;
-    return true;
-}
-RingBuffer *rb_new(int size)
-{
-    RingBuffer *buf = (RingBuffer *)calloc(sizeof(RingBuffer), 1);
-
-    if (!buf) {
-        return NULL;
-    }
-
-    buf->size = size + 1; /* include empty elem */
-
-    if (!(buf->data = (void **)calloc(buf->size, sizeof(void *)))) {
-        free(buf);
-        return NULL;
-    }
-
-    return buf;
-}
-void rb_kill(RingBuffer *b)
-{
-    if (b) {
-        free(b->data);
-        free(b);
-    }
-}
-uint16_t rb_size(const RingBuffer *b)
-{
-    if (rb_empty(b)) {
-        return 0;
-    }
-
-    return
-        b->end > b->start ?
-        b->end - b->start :
-        (b->size - b->start) + b->end;
-}
-uint16_t rb_data(const RingBuffer *b, void **dest)
-{
-    uint16_t i = 0;
-
-    for (; i < rb_size(b); i++) {
-        dest[i] = b->data[(b->start + i) % b->size];
-    }
-
-    return i;
-}