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io: add qio_channel_writev_full_all helper

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Adds qio_channel_writev_full_all() to transmit both data and FDs.
Refactors existing code to use this helper.

Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: John G Johnson <john.g.johnson@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 480fbf1fe4152495d60596c9b665124549b426a5.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Elena Ufimtseva 2021-01-29 11:46:08 -05:00 • committed by Stefan Hajnoczi
parent 3f0e7e57a3
commit bfa4238750
2 changed files with 39 additions and 1 deletions
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15
io/channel.c
View file

@ -156,6 +156,15 @@ int qio_channel_writev_all(QIOChannel *ioc,
const struct iovec *iov,
size_t niov,
Error **errp)
{
return qio_channel_writev_full_all(ioc, iov, niov, NULL, 0, errp);
}
int qio_channel_writev_full_all(QIOChannel *ioc,
const struct iovec *iov,
size_t niov,
int *fds, size_t nfds,
Error **errp)
{
int ret = -1;
struct iovec *local_iov = g_new(struct iovec, niov);
@ -168,7 +177,8 @@ int qio_channel_writev_all(QIOChannel *ioc,
while (nlocal_iov > 0) {
ssize_t len;
len = qio_channel_writev(ioc, local_iov, nlocal_iov, errp);
len = qio_channel_writev_full(ioc, local_iov, nlocal_iov, fds, nfds,
errp);
if (len == QIO_CHANNEL_ERR_BLOCK) {
if (qemu_in_coroutine()) {
qio_channel_yield(ioc, G_IO_OUT);
@ -182,6 +192,9 @@ int qio_channel_writev_all(QIOChannel *ioc,
}
iov_discard_front(&local_iov, &nlocal_iov, len);
fds = NULL;
nfds = 0;
}
ret = 0;