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[Qemu-devel] [PATCH 4/6] iov: reorganize iov_send_recv, part 3
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 4/6] iov: reorganize iov_send_recv, part 3 |
Date: |
Wed, 27 Mar 2013 17:36:30 +0100 |
"si" and "ei" are merged in a single variable.
Signed-off-by: Paolo Bonzini <address@hidden>
---
util/iov.c | 30 +++++++++++++++---------------
1 file changed, 15 insertions(+), 15 deletions(-)
diff --git a/util/iov.c b/util/iov.c
index 110d18e..f14ff0b 100644
--- a/util/iov.c
+++ b/util/iov.c
@@ -146,7 +146,7 @@ ssize_t iov_send_recv(int sockfd, struct iovec *iov,
unsigned iov_cnt,
{
ssize_t ret;
size_t orig_len, tail;
- unsigned si, ei; /* start and end indexes */
+ unsigned niov;
if (bytes == 0) {
/* Catch the do-nothing case early, as otherwise we will pass an
@@ -158,15 +158,15 @@ ssize_t iov_send_recv(int sockfd, struct iovec *iov,
unsigned iov_cnt,
/* Find the start position, skipping `offset' bytes:
* first, skip all full-sized vector elements, */
- for (si = 0; si < iov_cnt && offset >= iov[si].iov_len; ++si) {
- offset -= iov[si].iov_len;
+ for (niov = 0; niov < iov_cnt && offset >= iov[niov].iov_len; ++niov) {
+ offset -= iov[niov].iov_len;
}
- /* si == iov_cnt would only be valid if bytes == 0, which
+ /* niov == iov_cnt would only be valid if bytes == 0, which
* we already ruled out above. */
- assert(si < iov_cnt);
- iov += si;
- iov_cnt -= si;
+ assert(niov < iov_cnt);
+ iov += niov;
+ iov_cnt -= niov;
if (offset) {
/* second, skip `offset' bytes from the (now) first element,
@@ -177,23 +177,23 @@ ssize_t iov_send_recv(int sockfd, struct iovec *iov,
unsigned iov_cnt,
/* Find the end position skipping `bytes' bytes: */
/* first, skip all full-sized elements */
tail = bytes;
- for (ei = 0; ei < iov_cnt && iov[ei].iov_len <= tail; ++ei) {
- tail -= iov[ei].iov_len;
+ for (niov = 0; niov < iov_cnt && iov[niov].iov_len <= tail; ++niov) {
+ tail -= iov[niov].iov_len;
}
if (tail) {
/* second, fixup the last element, and remember the original
* length */
- assert(ei < iov_cnt);
- assert(iov[ei].iov_len > tail);
- orig_len = iov[ei].iov_len;
- iov[ei++].iov_len = tail;
+ assert(niov < iov_cnt);
+ assert(iov[niov].iov_len > tail);
+ orig_len = iov[niov].iov_len;
+ iov[niov++].iov_len = tail;
}
- ret = do_send_recv(sockfd, iov, ei, do_send);
+ ret = do_send_recv(sockfd, iov, niov, do_send);
/* Undo the changes above */
if (tail) {
- iov[ei-1].iov_len = orig_len;
+ iov[niov-1].iov_len = orig_len;
}
if (offset) {
iov[0].iov_base -= offset;
--
1.8.1.4
- [Qemu-devel] [PATCH 0/6] migration: followups for writev patches, Paolo Bonzini, 2013/03/27
- [Qemu-devel] [PATCH 1/6] qemu-file: drop socket_put_buffer, Paolo Bonzini, 2013/03/27
- [Qemu-devel] [PATCH 2/6] iov: reorganize iov_send_recv, part 1, Paolo Bonzini, 2013/03/27
- [Qemu-devel] [PATCH 3/6] iov: reorganize iov_send_recv, part 2, Paolo Bonzini, 2013/03/27
- [Qemu-devel] [PATCH 4/6] iov: reorganize iov_send_recv, part 3,
Paolo Bonzini <=
- [Qemu-devel] [PATCH 6/6] qemu-file: do not use stdio for qemu_fdopen, Paolo Bonzini, 2013/03/27
- [Qemu-devel] [PATCH 5/6] iov: handle partial writes from sendmsg and recvmsg, Paolo Bonzini, 2013/03/27