diff -r 4d641c6a2f82 -r ee5d668a71e4 src/cx/buffer.h
--- a/src/cx/buffer.h	Tue Nov 25 20:35:27 2025 +0100
+++ b/src/cx/buffer.h	Wed Nov 26 23:06:12 2025 +0100
@@ -118,7 +118,7 @@
     /**
      * The maximum number of blocks to flush in one cycle.
      *
-     * @attention while it is guaranteed that cxBufferFlush() will not flush
+     * @attention While it is guaranteed that cxBufferFlush() will not flush
      * more blocks, this is not necessarily the case for cxBufferWrite().
      * After performing a flush cycle, cxBufferWrite() will retry the write
      * operation and potentially trigger another flush cycle, until the
@@ -388,6 +388,20 @@
 CX_EXPORT int cxBufferSeek(CxBuffer *buffer, off_t offset, int whence);
 
 /**
+ * Discards items from the end of the buffer.
+ *
+ * When the current position points to a byte that gets discarded,
+ * the position is set to the buffer size.
+ *
+ * @param buffer the buffer
+ * @param size the size of one item
+ * @param nitems the number of items to discard
+ * @return the actual number of discarded items
+ */
+cx_attr_nonnull
+CX_EXPORT size_t cxBufferPop(CxBuffer *buffer, size_t size, size_t nitems);
+
+/**
  * Clears the buffer by resetting the position and deleting the data.
  *
  * The data is deleted by zeroing it with a call to memset().