c8198bd5f9
There is no "version 2" of the "Lesser" General Public License. It is either "GPL version 2.0" or "Lesser GPL version 2.1". This patch replaces all occurrences of "Lesser GPL version 2" with "Lesser GPL version 2.1" in comment section. Signed-off-by: Chetan Pant <chetan4windows@gmail.com> Acked-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20201014134033.14095-1-chetan4windows@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
93 lines
2.8 KiB
C
93 lines
2.8 KiB
C
/*
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* QEMU I/O channels files driver
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*
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* Copyright (c) 2015 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 2.1 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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#ifndef QIO_CHANNEL_FILE_H
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#define QIO_CHANNEL_FILE_H
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#include "io/channel.h"
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#include "qom/object.h"
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#define TYPE_QIO_CHANNEL_FILE "qio-channel-file"
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OBJECT_DECLARE_SIMPLE_TYPE(QIOChannelFile, QIO_CHANNEL_FILE)
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/**
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* QIOChannelFile:
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*
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* The QIOChannelFile object provides a channel implementation
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* that is able to perform I/O on block devices, character
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* devices, FIFOs, pipes and plain files. While it is technically
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* able to work on sockets too on the UNIX platform, this is not
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* portable to Windows and lacks some extra sockets specific
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* functionality. So the QIOChannelSocket object is recommended
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* for that use case.
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*
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*/
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struct QIOChannelFile {
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QIOChannel parent;
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int fd;
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};
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/**
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* qio_channel_file_new_fd:
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* @fd: the file descriptor
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*
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* Create a new IO channel object for a file represented
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* by the @fd parameter. @fd can be associated with a
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* block device, character device, fifo, pipe, or a
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* regular file. For sockets, the QIOChannelSocket class
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* should be used instead, as this provides greater
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* functionality and cross platform portability.
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*
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* The channel will own the passed in file descriptor
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* and will take responsibility for closing it, so the
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* caller must not close it. If appropriate the caller
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* should dup() its FD before opening the channel.
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*
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* Returns: the new channel object
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*/
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QIOChannelFile *
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qio_channel_file_new_fd(int fd);
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/**
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* qio_channel_file_new_path:
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* @path: the file path
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* @flags: the open flags (O_RDONLY|O_WRONLY|O_RDWR, etc)
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* @mode: the file creation mode if O_CREAT is set in @flags
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* @errp: pointer to initialized error object
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*
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* Create a new IO channel object for a file represented
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* by the @path parameter. @path can point to any
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* type of file on which sequential I/O can be
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* performed, whether it be a plain file, character
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* device or block device.
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*
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* Returns: the new channel object
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*/
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QIOChannelFile *
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qio_channel_file_new_path(const char *path,
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int flags,
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mode_t mode,
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Error **errp);
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#endif /* QIO_CHANNEL_FILE_H */
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