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/*
* Copyright (c) 2021 One Identity
*
* 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 2.1 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#include "stats/aggregator/stats-aggregator.h"
#include "stats/stats-registry.h"
#include "stats/stats-cluster-single.h"
typedef struct
{
StatsAggregator super;
} StatsAggregatorMaximum;
static void
_add_data_point(StatsAggregator *s, gsize value)
{
StatsAggregatorMaximum *self = (StatsAggregatorMaximum *)s;
gsize current_max = 0;
do
{
current_max = stats_counter_get(self->super.output_counter);
if (current_max >= value)
break;
}
while(!atomic_gssize_compare_and_exchange(&self->super.output_counter->value, current_max, value));
}
static void
_set_virtual_function(StatsAggregatorMaximum *self)
{
self->super.add_data_point = _add_data_point;
}
StatsAggregator *
stats_aggregator_maximum_new(gint level, StatsClusterKey *sc_key)
{
StatsAggregatorMaximum *self = g_new0(StatsAggregatorMaximum, 1);
stats_aggregator_init_instance(&self->super, sc_key, level);
_set_virtual_function(self);
return &self->super;
}
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