add a single-element ring-buffer write function

1 files changed, 7 insertions, 0 deletions

diff --git a/libs/pbd/pbd/ringbufferNPT.h b/libs/pbd/pbd/ringbufferNPT.h
index f01a6f3a16..267adf83ff 100644
--- a/libs/pbd/pbd/ringbufferNPT.h
+++ b/libs/pbd/pbd/ringbufferNPT.h
@@ -59,6 +59,7 @@ class /*LIBPBD_API*/ RingBufferNPT
 
 	size_t  read  (T *dest, size_t cnt);
 	size_t  write (const T *src, size_t cnt);
+	size_t  write_one (const T src);
 
 	struct rw_vector {
 	    T *buf[2];
@@ -198,6 +199,12 @@ RingBufferNPT<T>::write (const T *src, size_t cnt)
         return to_write;
 }
 
+template<class T> /*LIBPBD_API*/ size_t
+RingBufferNPT<T>::write_one (const T src)
+{
+	return write (&src, 1);
+}
+
 template<class T> /*LIBPBD_API*/ void
 RingBufferNPT<T>::get_read_vector (typename RingBufferNPT<T>::rw_vector *vec)
 {