Electroneum
timehist.h
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1 /*
2  * util/timehist.h - make histogram of time values.
3  *
4  * Copyright (c) 2007, NLnet Labs. All rights reserved.
5  *
6  * This software is open source.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * Redistributions of source code must retain the above copyright notice,
13  * this list of conditions and the following disclaimer.
14  *
15  * Redistributions in binary form must reproduce the above copyright notice,
16  * this list of conditions and the following disclaimer in the documentation
17  * and/or other materials provided with the distribution.
18  *
19  * Neither the name of the NLNET LABS nor the names of its contributors may
20  * be used to endorse or promote products derived from this software without
21  * specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27  * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
29  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
30  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
31  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
32  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34  */
35 
42 #ifndef UTIL_TIMEHIST_H
43 #define UTIL_TIMEHIST_H
44 
46 #define NUM_BUCKETS_HIST 40
47 
51 struct th_buck {
53  struct timeval lower;
55  struct timeval upper;
57  size_t count;
58 };
59 
63 struct timehist {
65  size_t num;
67  struct th_buck* buckets;
68 };
69 
74 struct timehist* timehist_setup(void);
75 
80 void timehist_delete(struct timehist* hist);
81 
86 void timehist_clear(struct timehist* hist);
87 
93 void timehist_insert(struct timehist* hist, struct timeval* tv);
94 
103 double timehist_quartile(struct timehist* hist, double q);
104 
109 void timehist_print(struct timehist* hist);
110 
116 void timehist_log(struct timehist* hist, const char* name);
117 
124 void timehist_export(struct timehist* hist, long long* array, size_t sz);
125 
132 void timehist_import(struct timehist* hist, long long* array, size_t sz);
133 
134 #endif /* UTIL_TIMEHIST_H */
struct timeval upper
Definition: timehist.h:55
void timehist_clear(struct timehist *hist)
void timehist_import(struct timehist *hist, long long *array, size_t sz)
void timehist_log(struct timehist *hist, const char *name)
void timehist_print(struct timehist *hist)
void timehist_insert(struct timehist *hist, struct timeval *tv)
struct timehist * timehist_setup(void)
struct th_buck * buckets
Definition: timehist.h:67
const char * name
size_t count
Definition: timehist.h:57
struct timeval lower
Definition: timehist.h:53
size_t num
Definition: timehist.h:65
void timehist_export(struct timehist *hist, long long *array, size_t sz)
double timehist_quartile(struct timehist *hist, double q)
void timehist_delete(struct timehist *hist)