tRe-organize flags a bit - dedup - deduplicating backup program
(HTM) git clone git://git.z3bra.org/dedup.git
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---
(DIR) commit 7f984c9b4136d768e72f31d99666b72bca12d7f2
(DIR) parent 4898c6cfb92a378928c29895d4ca55536121b52d
(HTM) Author: sin <sin@2f30.org>
Date: Sun, 7 Apr 2019 12:52:00 +0100
Re-organize flags a bit
We might want to support more than one compression algo in the future.
Reserve 2 bits for that field.
Diffstat:
M dedup.h | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
---
(DIR) diff --git a/dedup.h b/dedup.h
t@@ -22,11 +22,10 @@
#define VER_MAJ_SHIFT 8
#define VER_MAJ_MASK 0xff
+#define HASH_ALGO_SHIFT 18
+#define HASH_ALGO_MASK 0x7 /* max 8 hash algos */
#define COMPR_ENABLED_SHIFT 16
-#define COMPR_ENABLED_MASK 0x1
-
-#define HASH_ALGO_SHIFT 17
-#define HASH_ALGO_MASK 0x7 /* max 8 hash algos */
+#define COMPR_ENABLED_MASK 0x3 /* max 4 compression algos */
enum hash_algo {
BLAKE2B_ALGO,