qemu/include/io/channel-buffer.h
Eduardo Habkost 8063396bf3 Use OBJECT_DECLARE_SIMPLE_TYPE when possible
This converts existing DECLARE_INSTANCE_CHECKER usage to
OBJECT_DECLARE_SIMPLE_TYPE when possible.

$ ./scripts/codeconverter/converter.py -i \
  --pattern=AddObjectDeclareSimpleType $(git grep -l '' -- '*.[ch]')

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Paul Durrant <paul@xen.org>
Message-Id: <20200916182519.415636-6-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-18 14:12:32 -04:00

60 lines
1.6 KiB
C

/*
* QEMU I/O channels memory buffer driver
*
* Copyright (c) 2015 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef QIO_CHANNEL_BUFFER_H
#define QIO_CHANNEL_BUFFER_H
#include "io/channel.h"
#include "qom/object.h"
#define TYPE_QIO_CHANNEL_BUFFER "qio-channel-buffer"
OBJECT_DECLARE_SIMPLE_TYPE(QIOChannelBuffer, QIO_CHANNEL_BUFFER)
/**
* QIOChannelBuffer:
*
* The QIOChannelBuffer object provides a channel implementation
* that is able to perform I/O to/from a memory buffer.
*
*/
struct QIOChannelBuffer {
QIOChannel parent;
size_t capacity; /* Total allocated memory */
size_t usage; /* Current size of data */
size_t offset; /* Offset for future I/O ops */
uint8_t *data;
};
/**
* qio_channel_buffer_new:
* @capacity: the initial buffer capacity to allocate
*
* Allocate a new buffer which is initially empty
*
* Returns: the new channel object
*/
QIOChannelBuffer *
qio_channel_buffer_new(size_t capacity);
#endif /* QIO_CHANNEL_BUFFER_H */