libei/src/libei-callback.c
2023-03-03 11:27:01 +10:00

118 lines
3.6 KiB
C

/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2023 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN callback WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include <errno.h>
#include <stdbool.h>
#include "util-bits.h"
#include "util-macros.h"
#include "util-mem.h"
#include "util-io.h"
#include "util-strings.h"
#include "util-version.h"
#include "libei-private.h"
#include "ei-proto.h"
static void
ei_callback_destroy(struct ei_callback *callback)
{
struct ei *ei = ei_callback_get_context(callback);
ei_unregister_object(ei, &callback->proto_object);
}
OBJECT_IMPLEMENT_REF(ei_callback);
OBJECT_IMPLEMENT_UNREF_CLEANUP(ei_callback);
OBJECT_IMPLEMENT_GETTER(ei_callback, user_data, void*);
OBJECT_IMPLEMENT_SETTER(ei_callback, user_data, void*);
OBJECT_IMPLEMENT_GETTER_AS_REF(ei_callback, proto_object, const struct brei_object*);
static
OBJECT_IMPLEMENT_CREATE(ei_callback);
static
OBJECT_IMPLEMENT_PARENT(ei_callback, ei);
struct ei*
ei_callback_get_context(struct ei_callback *callback)
{
assert(callback);
return ei_callback_parent(callback);
}
object_id_t
ei_callback_get_id(struct ei_callback *callback)
{
return callback->proto_object.id;
}
static struct brei_result *
handle_msg_done(struct ei_callback *callback, uint32_t callback_data)
{
callback->func(callback, callback->callback_data, callback_data);
return NULL;
}
static const struct ei_callback_interface interface = {
.done = handle_msg_done,
};
const struct ei_callback_interface *
ei_callback_get_interface(struct ei_callback *callback) {
return &interface;
}
struct ei_callback *
ei_callback_new(struct ei *ei, ei_callback_func func, void *callback_data)
{
struct ei_callback *callback = ei_callback_create(&ei->object);
callback->proto_object.id = ei_get_new_id(ei);
callback->proto_object.implementation = callback;
callback->proto_object.interface = &ei_callback_proto_interface;
callback->proto_object.version = VERSION_V(1);
callback->callback_data = callback_data;
ei_register_object(ei, &callback->proto_object);
callback->func = func;
list_init(&callback->link);
return callback; /* ref owned by caller */
}
struct ei_callback *
ei_callback_new_for_id(struct ei *ei, object_id_t id, uint32_t version)
{
struct ei_callback *callback = ei_callback_create(&ei->object);
callback->proto_object.id = id;
callback->proto_object.implementation = callback;
callback->proto_object.interface = &ei_callback_proto_interface;
callback->proto_object.version = version; /* FIXME */
ei_register_object(ei, &callback->proto_object);
list_init(&callback->link);
return callback; /* ref owned by caller */
}