-struct fastbuf *fbgbuf_create(unsigned basic_size);
-void fbgbuf_write(struct fastbuf *b); /* Reset stream and prepare for writing */
-void fbgbuf_rewind(struct fastbuf *b); /* Close reading if needed and prepare for reading */
+struct fastbuf *fbgrow_create(unsigned basic_size);
+void fbgrow_reset(struct fastbuf *b); /* Reset stream and prepare for writing */
+void fbgrow_rewind(struct fastbuf *b); /* Prepare for reading */