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client: Rearrange ring_to_iovec() for clarity

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Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
This commit is contained in:
Markus Armbruster 2017-06-25 10:23:08 +02:00
parent 8fe2b949e6
commit 53c8794ef8
1 changed files with 7 additions and 8 deletions
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15
src/client/ringbuf.c
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@ -229,18 +229,17 @@ ring_to_iovec(struct ring *r, struct iovec iov[])
return 0;
iov[0].iov_base = r->buf + cons;
if (prod <= cons) {
/* r->buf[cons..] */
iov[0].iov_len = RING_SIZE - cons;
/* r->buf[..prod-1] */
iov[1].iov_base = r->buf;
iov[1].iov_len = prod;
return 2;
} else {
if (prod > cons) {
/* r->buf[cons..prod-1] */
iov[0].iov_len = prod - cons;
return 1;
}
/* r->buf[cons..] */
iov[0].iov_len = RING_SIZE - cons;
/* r->buf[..prod-1] */
iov[1].iov_base = r->buf;
iov[1].iov_len = prod;
return 2;
}
/*