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csum-file: add hashwrite_be64()

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Add a helper function for hashing and writing 64-bit integers in network
byte order.  It returns the number of written bytes.  This simplifies
callers that keep track of the file offset, even though this number is a
constant.

Suggested-by: Derrick Stolee <dstolee@microsoft.com>
Original-patch-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe 2020-11-12 13:20:19 +01:00 committed by Junio C Hamano
parent 898f80736c
commit 54273d1042
1 changed files with 7 additions and 0 deletions
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csum-file.h
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@ -62,4 +62,11 @@ static inline void hashwrite_be32(struct hashfile *f, uint32_t data)
hashwrite(f, &data, sizeof(data));
}
static inline size_t hashwrite_be64(struct hashfile *f, uint64_t data)
{
data = htonll(data);
hashwrite(f, &data, sizeof(data));
return sizeof(data);
}
#endif