packetframe: Introduce ChunkLen type

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/src/packetframe.rs b/src/packetframe.rs
index c42cb11e66a2cc56064c9da53c5fb370c9f67a8e..b8edd72240ca971f58dbc1bb98cc17b5055ecd44 100644 (file)
--- a/src/packetframe.rs
+++ b/src/packetframe.rs
@@ -17,9 +17,11 @@ use crate::prelude::*;
 
 // ---------- common ----------
 
-const CHUNK_MAX: u16 = 65534;
-const CHUNK_ERR: u16 = 65535;
-const CHUNK_DEF: u16 = 8192;
+type ChunkLen = u16;
+
+const CHUNK_MAX: ChunkLen = 65534;
+const CHUNK_ERR: ChunkLen = 65535;
+const CHUNK_DEF: ChunkLen = 8192;
 
 type BO = BigEndian;