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win32-aio: use iov utility functions instead of open-coding them

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We have iov_from_buf() and iov_to_buf(), use them instead of
open-coding these in block/win32-aio.c

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Michael Tokarev 2013-01-17 18:47:52 +04:00 committed by Stefan Hajnoczi
parent e8bccad5ac
commit 3249dbe661
1 changed files with 3 additions and 14 deletions
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17
block/win32-aio.c
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@ -29,6 +29,7 @@
#include "block/aio.h"
#include "raw-aio.h"
#include "qemu/event_notifier.h"
#include "qemu/iov.h"
#include <windows.h>
#include <winioctl.h>
@ -80,13 +81,7 @@ static void win32_aio_process_completion(QEMUWin32AIOState *s,
if (!waiocb->is_linear) {
if (ret == 0 && waiocb->is_read) {
QEMUIOVector *qiov = waiocb->qiov;
char *p = waiocb->buf;
int i;
for (i = 0; i < qiov->niov; ++i) {
memcpy(qiov->iov[i].iov_base, p, qiov->iov[i].iov_len);
p += qiov->iov[i].iov_len;
}
iov_from_buf(qiov->iov, qiov->niov, 0, waiocb->buf, qiov->size);
}
qemu_vfree(waiocb->buf);
}
@ -153,13 +148,7 @@ BlockDriverAIOCB *win32_aio_submit(BlockDriverState *bs,
if (qiov->niov > 1) {
waiocb->buf = qemu_blockalign(bs, qiov->size);
if (type & QEMU_AIO_WRITE) {
char *p = waiocb->buf;
int i;
for (i = 0; i < qiov->niov; ++i) {
memcpy(p, qiov->iov[i].iov_base, qiov->iov[i].iov_len);
p += qiov->iov[i].iov_len;
}
iov_to_buf(qiov->iov, qiov->niov, 0, waiocb->buf, qiov->size);
}
waiocb->is_linear = false;
} else {