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/*
* Copyright (C) 2022 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
*
* This file is part of Open5GS.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#if !defined(OGS_METRICS_INSIDE) && !defined(OGS_METRICS_COMPILATION)
#error "This header cannot be included directly."
#endif
#ifndef OGS_METRICS_CONTEXT_H
#define OGS_METRICS_CONTEXT_H
#ifdef __cplusplus
extern "C" {
#endif
typedef struct ogs_metrics_server_s ogs_metrics_server_t;
typedef enum ogs_metrics_metric_type_s {
OGS_METRICS_METRIC_TYPE_COUNTER,
OGS_METRICS_METRIC_TYPE_GAUGE,
OGS_METRICS_METRIC_TYPE_HISTOGRAM,
} ogs_metrics_metric_type_t;
typedef struct ogs_metrics_context_s {
ogs_list_t server_list;
ogs_list_t spec_list;
uint16_t metrics_port;
} ogs_metrics_context_t;
typedef enum ogs_metrics_histogram_bucket_type_s {
OGS_METRICS_HISTOGRAM_BUCKET_TYPE_VARIABLE,
OGS_METRICS_HISTOGRAM_BUCKET_TYPE_LINEAR,
OGS_METRICS_HISTOGRAM_BUCKET_TYPE_EXPONENTIAL,
} ogs_metrics_histogram_bucket_type_t;
typedef struct ogs_metrics_histogram_bucket_params_s {
ogs_metrics_histogram_bucket_type_t type;
unsigned int count;
#define OGS_METRICS_HIST_VAR_BUCKETS_MAX 10
union {
struct {
float start;
float width;
} lin;
struct {
float start;
float factor;
} exp;
struct {
float buckets[OGS_METRICS_HIST_VAR_BUCKETS_MAX];
} var;
};
} ogs_metrics_histogram_params_t;
typedef struct ogs_metrics_context_s ogs_metrics_context_t;
void ogs_metrics_context_init(void);
void ogs_metrics_context_open(ogs_metrics_context_t *ctx);
void ogs_metrics_context_close(ogs_metrics_context_t *ctx);
void ogs_metrics_context_final(void);
ogs_metrics_context_t *ogs_metrics_self(void);
int ogs_metrics_context_parse_config(const char *local);
void ogs_metrics_server_init(ogs_metrics_context_t *ctx);
void ogs_metrics_server_open(ogs_metrics_context_t *ctx);
void ogs_metrics_server_close(ogs_metrics_context_t *ctx);
void ogs_metrics_server_final(ogs_metrics_context_t *ctx);
ogs_metrics_server_t *ogs_metrics_server_add(
ogs_sockaddr_t *addr, ogs_sockopt_t *option);
void ogs_metrics_server_remove(ogs_metrics_server_t *server);
void ogs_metrics_server_remove_all(void);
typedef struct ogs_metrics_spec_s ogs_metrics_spec_t;
void ogs_metrics_spec_init(ogs_metrics_context_t *ctx);
void ogs_metrics_spec_final(ogs_metrics_context_t *ctx);
ogs_metrics_spec_t *ogs_metrics_spec_new(
ogs_metrics_context_t *ctx, ogs_metrics_metric_type_t type,
const char *name, const char *description,
int initial_val, unsigned int num_labels, const char ** labels,
ogs_metrics_histogram_params_t *histogram_params);
void ogs_metrics_spec_free(ogs_metrics_spec_t *spec);
typedef struct ogs_metrics_inst_s ogs_metrics_inst_t;
ogs_metrics_inst_t *ogs_metrics_inst_new(
ogs_metrics_spec_t *spec,
unsigned int num_labels, const char **label_values);
void ogs_metrics_inst_free(ogs_metrics_inst_t *inst);
void ogs_metrics_inst_set(ogs_metrics_inst_t *inst, int val);
void ogs_metrics_inst_reset(ogs_metrics_inst_t *inst);
void ogs_metrics_inst_add(ogs_metrics_inst_t *inst, int val);
static inline void ogs_metrics_inst_inc(ogs_metrics_inst_t *inst)
{
ogs_metrics_inst_add(inst, 1);
}
static inline void ogs_metrics_inst_dec(ogs_metrics_inst_t *inst)
{
ogs_metrics_inst_add(inst, -1);
}
#ifdef __cplusplus
}
#endif
#endif /* OGS_METRICS_CONTEXT_H */
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