1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/*
* Copyright 2013-2018 Fabian Groffen
*
* 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
*
* 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 AGGREGATOR_H
#define AGGREGATOR_H 1
#include <pthread.h>
#include "server.h"
#include "posixregex.h"
#define AGGR_HT_POW_SIZE 12 /* 4096: too big? issue #60 */
typedef struct _aggregator {
unsigned short interval; /* when to perform the aggregation */
unsigned short expire; /* when incoming metrics are no longer valid */
enum _aggr_timestamp { TS_START, TS_MIDDLE, TS_END } tswhen;
unsigned char bucketcnt;
int disp_conn;
int fd;
size_t received;
size_t sent;
size_t dropped;
struct _aggr_computes {
enum _aggr_compute_type { SUM, CNT, MAX, MIN, AVG,
MEDN, PCTL, VAR, SDEV } type;
const char *metric; /* name template of metric to produce */
struct _aggr_invocations {
char *metric; /* actual name to emit */
unsigned int hash; /* to speed up matching */
unsigned short expire; /* expire + splay */
struct _aggr_bucket {
pthread_mutex_t bcklock;
enum { A_OPEN, A_EXPIRE } state;
long long int start;
size_t cnt;
double sum;
double max;
double min;
struct _aggr_bucket_entries {
size_t size;
double *values;
} entries;
} *buckets;
struct _aggr_invocations *next;
} *invocations_ht[1 << AGGR_HT_POW_SIZE];
unsigned char entries_needed:1;
unsigned char percentile:7;
pthread_rwlock_t invlock;
struct _aggr_computes *next;
} *computes;
struct _aggregator *next;
} aggregator;
aggregator *aggregator_new(unsigned int interval, unsigned int expire, enum _aggr_timestamp tswhen);
char aggregator_add_compute(aggregator *s, const char *metric, enum _aggr_compute_type type, unsigned char pctl);
void aggregator_set_stub(aggregator *s, const char *stubname);
void aggregator_putmetric(aggregator *s, const char *metric, const char *firstspace, size_t nmatch, regmatch_t *pmatch);
int aggregator_start(aggregator *aggrs);
void aggregator_stop(void);
size_t aggregator_numaggregators(aggregator *agrs);
size_t aggregator_numcomputes(aggregator *aggrs);
size_t aggregator_get_received(aggregator *aggrs);
size_t aggregator_get_sent(aggregator *aggrs);
size_t aggregator_get_dropped(aggregator *aggrs);
size_t aggregator_get_received_sub(aggregator *aggrs);
size_t aggregator_get_sent_sub(aggregator *aggrs);
size_t aggregator_get_dropped_sub(aggregator *aggrs);
#endif
|
