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change qemu_iovec_to_buf() to match other to,from_buf functions

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It now allows specifying offset within qiov to start from and
amount of bytes to copy.  Actual implementation is just a call
to iov_to_buf().

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Michael Tokarev 2012-06-07 20:21:06 +04:00
parent 1b093c480a
commit d5e6b1619c
7 changed files with 10 additions and 15 deletions
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11
cutils.c
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@ -220,15 +220,10 @@ void qemu_iovec_reset(QEMUIOVector *qiov)
qiov->size = 0;
}
void qemu_iovec_to_buffer(QEMUIOVector *qiov, void *buf)
size_t qemu_iovec_to_buf(QEMUIOVector *qiov, size_t offset,
void *buf, size_t bytes)
{
uint8_t *p = (uint8_t *)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;
}
return iov_to_buf(qiov->iov, qiov->niov, offset, buf, bytes);
}
size_t qemu_iovec_from_buf(QEMUIOVector *qiov, size_t offset,