ustream: add ustream_pending_data accessor function

[project/libubox.git] / ustream.h

diff --git a/ustream.h b/ustream.h
index 2df429c..15f1ba1 100644 (file)
--- a/ustream.h
+++ b/ustream.h
@@ -163,6 +163,17 @@ static inline bool ustream_read_blocked(struct ustream *s)
        return !!(s->read_blocked & READ_BLOCKED_USER);
 }
 
+static inline int ustream_pending_data(struct ustream *s, bool write)
+{
+       struct ustream_buf_list *b = write ? &s->w : &s->r;
+       return b->data_bytes;
+}
+
+static inline bool ustream_read_buf_full(struct ustream *s)
+{
+       return ustream_pending_data(s, false) == s->r.buffer_len;
+}
+
 /*** --- functions only used by ustream implementations --- ***/
 
 /* ustream_init_defaults: fill default callbacks and options */