156 lines
3.1 KiB
C
156 lines
3.1 KiB
C
/*
|
|
* 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;
|
|
}
|