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/*
* This file is part of the rsyslog runtime library.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* -or-
* see COPYING.ASL20 in the source distribution
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef INCLUDED_PERCTILE_STATS_H
#define INCLUDED_PERCTILE_STATS_H
#include "hashtable.h"
#include "statsobj.h"
struct perctile_ctr_s {
// percentile [0,100]
uint8_t percentile;
size_t index;
intctr_t ctr_perctile_stat;
ctr_t *ref_ctr_percentile_stat;
};
struct perctile_stat_s {
uchar name[128];
sbool bReported;
struct ringbuf_s *rb_observed_stats;
// array of requested perctile to track
struct perctile_ctr_s *ctrs;
size_t perctile_ctrs_count;
pthread_rwlock_t stats_lock;
intctr_t ctrWindowCount;
ctr_t *refCtrWindowCount;
intctr_t ctrWindowMin;
ctr_t *refCtrWindowMin;
intctr_t ctrWindowMax;
ctr_t *refCtrWindowMax;
intctr_t ctrWindowSum;
ctr_t *refCtrWindowSum;
};
struct perctile_bucket_s {
uchar *name;
uchar *delim;
// lock for entire bucket
pthread_rwlock_t lock;
struct hashtable *htable;
struct perctile_bucket_s *next;
statsobj_t *statsobj;
STATSCOUNTER_DEF(ctrNewKeyAdd, mutCtrNewKeyAdd);
ctr_t *pNewKeyAddCtr;
STATSCOUNTER_DEF(ctrOpsOverflow, mutCtrOpsOverflow);
ctr_t *pOpsOverflowCtr;
uint32_t window_size;
// These percentile values apply to all perctile stats in this bucket.
uint8_t *perctile_values;
size_t perctile_values_count;
};
struct perctile_buckets_s {
uint8_t initialized;
statsobj_t *global_stats;
pthread_rwlock_t lock;
struct perctile_bucket_s *listBuckets;
};
// keep these local for now.
typedef struct perctile_ctr_s perctile_ctr_t;
typedef struct perctile_stat_s perctile_stat_t;
typedef struct perctile_bucket_s perctile_bucket_t;
rsRetVal perctileClassInit(void);
void perctileBucketsDestruct(void);
rsRetVal perctile_initCnf(perctile_buckets_t *b);
perctile_bucket_t* perctile_findBucket(const uchar* name);
rsRetVal perctile_processCnf(struct cnfobj *cnf);
rsRetVal perctile_obs(perctile_bucket_t *perctile_bkt, uchar* key, int64_t value);
#endif /* #ifndef INCLUDED_PERCTILE_STATS_H */
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