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iov: don't touch iov in iov_send_recv()

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Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Message-id: 555D39D2.4000705@cn.fujitsu.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Wen Congyang 2015-05-21 09:50:10 +08:00 • committed by Stefan Hajnoczi
parent 3307ed7b3f
commit 6b64640dd2
2 changed files with 14 additions and 2 deletions
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2
include/qemu/iov.h
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@ -75,7 +75,7 @@ size_t iov_memset(const struct iovec *iov, const unsigned int iov_cnt,
* For iov_send_recv() _whole_ area being sent or received
* should be within the iovec, not only beginning of it.
*/
ssize_t iov_send_recv(int sockfd, struct iovec *iov, unsigned iov_cnt,
ssize_t iov_send_recv(int sockfd, const struct iovec *iov, unsigned iov_cnt,
size_t offset, size_t bytes, bool do_send);
#define iov_recv(sockfd, iov, iov_cnt, offset, bytes) \
iov_send_recv(sockfd, iov, iov_cnt, offset, bytes, false)