projects / mirror_qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 65cf200a DB |
1 | /* |
| 2 | * QEMU I/O channels block driver | |
| 3 | * | |
| 4 | * Copyright (c) 2022 Red Hat, Inc. | |
| 5 | * | |
| 6 | * This library is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation; either | |
| 9 | * version 2.1 of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * This library is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public | |
| 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
| 18 | * | |
| 19 | */ | |
| 20 | ||
| 21 | #ifndef QIO_CHANNEL_BLOCK_H | |
| 22 | #define QIO_CHANNEL_BLOCK_H | |
| 23 | ||
| 24 | #include "io/channel.h" | |
| 25 | #include "qom/object.h" | |
| 26 | ||
| 27 | #define TYPE_QIO_CHANNEL_BLOCK "qio-channel-block" | |
| 28 | OBJECT_DECLARE_SIMPLE_TYPE(QIOChannelBlock, QIO_CHANNEL_BLOCK) | |
| 29 | ||
| 30 | ||
| 31 | /** | |
| 32 | * QIOChannelBlock: | |
| 33 | * | |
| 34 | * The QIOChannelBlock object provides a channel implementation | |
| 35 | * that is able to perform I/O on the BlockDriverState objects | |
| 36 | * to the VMState region. | |
| 37 | */ | |
| 38 | ||
| 39 | struct QIOChannelBlock { | |
| 40 | QIOChannel parent; | |
| 41 | BlockDriverState *bs; | |
| 42 | off_t offset; | |
| 43 | }; | |
| 44 | ||
| 45 | ||
| 46 | /** | |
| 47 | * qio_channel_block_new: | |
| 48 | * @bs: the block driver state | |
| 49 | * | |
| 50 | * Create a new IO channel object that can perform | |
| 51 | * I/O on a BlockDriverState object to the VMState | |
| 52 | * region | |
| 53 | * | |
| 54 | * Returns: the new channel object | |
| 55 | */ | |
| 56 | QIOChannelBlock * | |
| 57 | qio_channel_block_new(BlockDriverState *bs); | |
| 58 | ||
| 59 | #endif /* QIO_CHANNEL_BLOCK_H */ |