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/*
* Copyright (c) 2023 Attila Szakacs
*
* 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 "metrics-pipe.h"
#include "stats/stats-registry.h"
#include "stats/stats-cluster-single.h"
static void
_init_stats_keys(MetricsPipe *self, StatsClusterKey *ingress_sc_key, StatsClusterKey *egress_sc_key)
{
enum { labels_len = 1 };
static StatsClusterLabel labels[labels_len];
labels[0] = stats_cluster_label("id", self->log_path_name);
stats_cluster_single_key_set(ingress_sc_key, "route_ingress_total", labels, labels_len);
stats_cluster_single_key_set(egress_sc_key, "route_egress_total", labels, labels_len);
}
static void
_queue(LogPipe *s, LogMessage *msg, const LogPathOptions *path_options)
{
MetricsPipe *self = (MetricsPipe *) s;
stats_counter_inc(self->ingress_counter);
gboolean matched = TRUE;
LogPathOptions local_path_options;
log_path_options_chain(&local_path_options, path_options);
local_path_options.matched = &matched;
log_pipe_forward_msg(s, msg, &local_path_options);
/* this is populated via local_path_options->matched */
if (matched)
stats_counter_inc(self->egress_counter);
if (path_options->matched && !matched)
*path_options->matched = FALSE;
}
static gboolean
_init(LogPipe *s)
{
MetricsPipe *self = (MetricsPipe *) s;
StatsClusterKey ingress_sc_key;
StatsClusterKey egress_sc_key;
_init_stats_keys(self, &ingress_sc_key, &egress_sc_key);
stats_lock();
{
stats_register_counter(STATS_LEVEL1, &ingress_sc_key, SC_TYPE_SINGLE_VALUE, &self->ingress_counter);
stats_register_counter(STATS_LEVEL1, &egress_sc_key, SC_TYPE_SINGLE_VALUE, &self->egress_counter);
}
stats_unlock();
return TRUE;
}
static gboolean
_deinit(LogPipe *s)
{
MetricsPipe *self = (MetricsPipe *) s;
StatsClusterKey ingress_sc_key;
StatsClusterKey egress_sc_key;
_init_stats_keys(self, &ingress_sc_key, &egress_sc_key);
stats_lock();
{
stats_unregister_counter(&ingress_sc_key, SC_TYPE_SINGLE_VALUE, &self->ingress_counter);
stats_unregister_counter(&egress_sc_key, SC_TYPE_SINGLE_VALUE, &self->egress_counter);
}
stats_unlock();
return TRUE;
}
static void
_free(LogPipe *s)
{
MetricsPipe *self = (MetricsPipe *) s;
g_free(self->log_path_name);
log_pipe_free_method(s);
}
MetricsPipe *
metrics_pipe_new(GlobalConfig *cfg, const gchar *log_path_name)
{
MetricsPipe *self = g_new0(MetricsPipe, 1);
log_pipe_init_instance(&self->super, cfg);
self->super.queue = _queue;
self->super.init = _init;
self->super.deinit = _deinit;
self->super.free_fn = _free;
self->log_path_name = g_strdup(log_path_name);
log_pipe_add_info(&self->super, self->log_path_name);
return self;
}
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