ustream: add ustream_read_buf_full() helper

[project/libubox.git] / ustream.h

diff --git a/ustream.h b/ustream.h
index 634a3e7..a1502af 100644 (file)
--- a/ustream.h
+++ b/ustream.h
@@ -68,7 +68,7 @@ struct ustream {
        void (*notify_write)(struct ustream *s, int bytes);
 
        /*
-        * notify_state:
+        * notify_state: (optional)
         * called by the ustream implementation to notify that the read
         * side of the stream is closed (eof is set) or there was a write
         * error (write_error is set).
@@ -163,6 +163,11 @@ static inline bool ustream_read_blocked(struct ustream *s)
        return !!(s->read_blocked & READ_BLOCKED_USER);
 }
 
+static inline bool ustream_read_buf_full(struct ustream *s)
+{
+       return s->r.data_bytes == s->r.buffer_len;
+}
+
 /*** --- functions only used by ustream implementations --- ***/
 
 /* ustream_init_defaults: fill default callbacks and options */