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/*
* Copyright (C) 2017 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program 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 General Public License
* for more details.
*/
#include "swima_events.h"
#include "swima_record.h"
#include <collections/linked_list.h>
#include <utils/debug.h>
typedef struct private_swima_events_t private_swima_events_t;
/**
* Private data of a swima_events_t object.
*
*/
struct private_swima_events_t {
/**
* Public swima_events_t interface.
*/
swima_events_t public;
/**
* Epoch of Event IDs
*/
uint32_t epoch;
/**
* Last Event ID
*/
uint32_t last_eid;
/**
* Last Consulted Event ID
*/
uint32_t last_consulted_eid;
/**
* List of SW records
*/
linked_list_t *list;
/**
* Reference count
*/
refcount_t ref;
};
METHOD(swima_events_t, add, void,
private_swima_events_t *this, swima_event_t *event)
{
this->list->insert_last(this->list, event);
}
METHOD(swima_events_t, get_count, int,
private_swima_events_t *this)
{
return this->list->get_count(this->list);
}
METHOD(swima_events_t, set_eid, void,
private_swima_events_t *this, uint32_t eid, uint32_t epoch)
{
this->last_eid = this->last_consulted_eid = eid;
this->epoch = epoch;
}
METHOD(swima_events_t, set_last_eid, void,
private_swima_events_t *this, uint32_t last_eid)
{
this->last_eid = last_eid;
}
METHOD(swima_events_t, get_eid, uint32_t,
private_swima_events_t *this, uint32_t *epoch, uint32_t *last_eid)
{
if (epoch)
{
*epoch = this->epoch;
}
if (last_eid)
{
*last_eid = this->last_eid;
}
return this->last_consulted_eid;
}
METHOD(swima_events_t, create_enumerator, enumerator_t*,
private_swima_events_t *this)
{
return this->list->create_enumerator(this->list);
}
METHOD(swima_events_t, get_ref, swima_events_t*,
private_swima_events_t *this)
{
ref_get(&this->ref);
return &this->public;
}
METHOD(swima_events_t, clear, void,
private_swima_events_t *this)
{
this->list->destroy_offset(this->list, offsetof(swima_event_t, destroy));
this->list = linked_list_create();
}
METHOD(swima_events_t, destroy, void,
private_swima_events_t *this)
{
if (ref_put(&this->ref))
{
this->list->destroy_offset(this->list, offsetof(swima_event_t, destroy));
free(this);
}
}
/**
* See header
*/
swima_events_t *swima_events_create(void)
{
private_swima_events_t *this;
INIT(this,
.public = {
.add = _add,
.get_count = _get_count,
.set_eid = _set_eid,
.set_last_eid = _set_last_eid,
.get_eid = _get_eid,
.create_enumerator = _create_enumerator,
.get_ref = _get_ref,
.clear = _clear,
.destroy = _destroy,
},
.list = linked_list_create(),
.ref = 1,
);
return &this->public;
}
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