c767ae62b9
Depending on what object a file descriptor refers to a different type of IO channel will be needed - either a QIOChannelFile or a QIOChannelSocket. Introduce a qio_channel_new_fd() method which will return the appropriate channel implementation. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
/*
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* QEMU I/O channels utility APIs
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*
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* Copyright (c) 2016 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "io/channel-util.h"
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#include "io/channel-file.h"
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#include "io/channel-socket.h"
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static bool fd_is_socket(int fd)
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{
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int optval;
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socklen_t optlen;
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optlen = sizeof(optval);
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return qemu_getsockopt(fd,
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SOL_SOCKET,
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SO_TYPE,
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(char *)&optval,
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&optlen) == 0;
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}
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QIOChannel *qio_channel_new_fd(int fd,
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Error **errp)
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{
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QIOChannel *ioc;
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if (fd_is_socket(fd)) {
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ioc = QIO_CHANNEL(qio_channel_socket_new_fd(fd, errp));
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} else {
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ioc = QIO_CHANNEL(qio_channel_file_new_fd(fd));
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}
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return ioc;
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}
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