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charset="utf-8" From: Elena Ufimtseva Adds qio_channel_writev_full_all() to transmit both data and FDs. Refactors existing code to use this function. Signed-off-by: Elena Ufimtseva Signed-off-by: John G Johnson Signed-off-by: Jagannathan Raman Reviewed-by: Stefan Hajnoczi --- include/io/channel.h | 25 +++++++++++++++++++++++++ io/channel.c | 17 ++++++++++++++++- 2 files changed, 41 insertions(+), 1 deletion(-) diff --git a/include/io/channel.h b/include/io/channel.h index 4d6fe45f63..2378567d4b 100644 --- a/include/io/channel.h +++ b/include/io/channel.h @@ -774,4 +774,29 @@ void qio_channel_set_aio_fd_handler(QIOChannel *ioc, IOHandler *io_write, void *opaque); =20 +/** + * qio_channel_writev_full_all: + * @ioc: the channel object + * @iov: the array of memory regions to write data from + * @niov: the length of the @iov array + * @fds: an array of file handles to send + * @nfds: number of file handles in @fds + * @errp: pointer to a NULL-initialized error object + * + * + * Behaves like qio_channel_writev_full but will attempt + * to send all data passed (file handles and memory regions). + * The function will wait for all requested data + * to be written, yielding from the current coroutine + * if required. + * + * Returns: 0 if all bytes were written, or -1 on error + */ + +int qio_channel_writev_full_all(QIOChannel *ioc, + const struct iovec *iov, + size_t niov, + int *fds, size_t nfds, + Error **errp); + #endif /* QIO_CHANNEL_H */ diff --git a/io/channel.c b/io/channel.c index 93d449dee2..bde1f6d0f4 100644 --- a/io/channel.c +++ b/io/channel.c @@ -156,11 +156,22 @@ 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 =3D -1; struct iovec *local_iov =3D g_new(struct iovec, niov); struct iovec *local_iov_head =3D local_iov; unsigned int nlocal_iov =3D niov; + int *local_fds =3D fds; + size_t local_nfds =3D nfds; =20 nlocal_iov =3D iov_copy(local_iov, nlocal_iov, iov, niov, @@ -168,7 +179,8 @@ int qio_channel_writev_all(QIOChannel *ioc, =20 while (nlocal_iov > 0) { ssize_t len; - len =3D qio_channel_writev(ioc, local_iov, nlocal_iov, errp); + len =3D qio_channel_writev_full(ioc, local_iov, nlocal_iov, local_= fds, + local_nfds, errp); if (len =3D=3D QIO_CHANNEL_ERR_BLOCK) { if (qemu_in_coroutine()) { qio_channel_yield(ioc, G_IO_OUT); @@ -182,6 +194,9 @@ int qio_channel_writev_all(QIOChannel *ioc, } =20 iov_discard_front(&local_iov, &nlocal_iov, len); + + local_fds =3D NULL; + local_nfds =3D 0; } =20 ret =3D 0; --=20 2.25.GIT