mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-30 23:10:38 +00:00
1a92d6d500
Remove dependency on qiochannel by removing yank_generic_iochannel and letting migration and chardev use their own yank function for iochannel. Signed-off-by: Lukas Straub <lukasstraub2@web.de> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20ff143fc2db23e27cd41d38043e481376c9cec1.1616521341.git.lukasstraub2@web.de>
88 lines
2.4 KiB
C
88 lines
2.4 KiB
C
/*
|
|
* QEMU yank feature
|
|
*
|
|
* Copyright (c) Lukas Straub <lukasstraub2@web.de>
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*/
|
|
|
|
#ifndef YANK_H
|
|
#define YANK_H
|
|
|
|
#include "qapi/qapi-types-yank.h"
|
|
|
|
typedef void (YankFn)(void *opaque);
|
|
|
|
/**
|
|
* yank_register_instance: Register a new instance.
|
|
*
|
|
* This registers a new instance for yanking. Must be called before any yank
|
|
* function is registered for this instance.
|
|
*
|
|
* This function is thread-safe.
|
|
*
|
|
* @instance: The instance.
|
|
* @errp: Error object.
|
|
*
|
|
* Returns true on success or false if an error occured.
|
|
*/
|
|
bool yank_register_instance(const YankInstance *instance, Error **errp);
|
|
|
|
/**
|
|
* yank_unregister_instance: Unregister a instance.
|
|
*
|
|
* This unregisters a instance. Must be called only after every yank function
|
|
* of the instance has been unregistered.
|
|
*
|
|
* This function is thread-safe.
|
|
*
|
|
* @instance: The instance.
|
|
*/
|
|
void yank_unregister_instance(const YankInstance *instance);
|
|
|
|
/**
|
|
* yank_register_function: Register a yank function
|
|
*
|
|
* This registers a yank function. All limitations of qmp oob commands apply
|
|
* to the yank function as well. See docs/devel/qapi-code-gen.txt under
|
|
* "An OOB-capable command handler must satisfy the following conditions".
|
|
*
|
|
* This function is thread-safe.
|
|
*
|
|
* @instance: The instance.
|
|
* @func: The yank function.
|
|
* @opaque: Will be passed to the yank function.
|
|
*/
|
|
void yank_register_function(const YankInstance *instance,
|
|
YankFn *func,
|
|
void *opaque);
|
|
|
|
/**
|
|
* yank_unregister_function: Unregister a yank function
|
|
*
|
|
* This unregisters a yank function.
|
|
*
|
|
* This function is thread-safe.
|
|
*
|
|
* @instance: The instance.
|
|
* @func: func that was passed to yank_register_function.
|
|
* @opaque: opaque that was passed to yank_register_function.
|
|
*/
|
|
void yank_unregister_function(const YankInstance *instance,
|
|
YankFn *func,
|
|
void *opaque);
|
|
|
|
#define BLOCKDEV_YANK_INSTANCE(the_node_name) (&(YankInstance) { \
|
|
.type = YANK_INSTANCE_TYPE_BLOCK_NODE, \
|
|
.u.block_node.node_name = (the_node_name) })
|
|
|
|
#define CHARDEV_YANK_INSTANCE(the_id) (&(YankInstance) { \
|
|
.type = YANK_INSTANCE_TYPE_CHARDEV, \
|
|
.u.chardev.id = (the_id) })
|
|
|
|
#define MIGRATION_YANK_INSTANCE (&(YankInstance) { \
|
|
.type = YANK_INSTANCE_TYPE_MIGRATION })
|
|
|
|
#endif
|