dedup

commit 90f2ff9fcf896060da4be75c70cd148f18be28e9
parent 7af43f80bce1e8a11967d0d83f1346e028a2f240
Author: sin <sin@2f30.org>
Date:   Sun, 17 Feb 2019 11:52:38 +0000

Rename write_blk to append_blk

write_blk gave the impression that it could write anywhere (and it
could) but the store is append only so we really don't want to write
anywhere.

Diffstat:
M
dedup.c
 | 
14
++++----------

1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/dedup.c b/dedup.c
@@ -341,19 +341,13 @@ read_blk(uint8_t *buf, struct bdescr *bdescr)
 }
 
 void
-write_blk(uint8_t *buf, struct bdescr *bdescr)
+append_blk(uint8_t *buf, struct bdescr *bdescr)
 {
-	lseek(sfd, bdescr->offset, SEEK_SET);
+	lseek(sfd, enthdr.store_size, SEEK_SET);
 	xwrite(sfd, buf, bdescr->size);
 	enthdr.store_size += bdescr->size;
 }
 
-off_t
-store_size(void)
-{
-	return enthdr.store_size;
-}
-
 int
 lookup_blk(uint8_t *md)
 {
@@ -392,7 +386,7 @@ dedup(int fd, char *msg)
 				blksiz = n;
 
 			memcpy(bdescr.md, md, sizeof(bdescr));
-			bdescr.offset = store_size();
+			bdescr.offset = enthdr.store_size;
 			bdescr.size = blksiz;
 
 			hash_blk(bp, bdescr.size, bdescr.md);
@@ -409,7 +403,7 @@ dedup(int fd, char *msg)
 				ent->bdescr[ent->nblks++] = bdescr;
 
 				/* Store block */
-				write_blk(bp, &bdescr);
+				append_blk(bp, &bdescr);
 
 				/* Create a cache entry for this block */
 				cent = alloc_cent();