xref: /freebsd/contrib/libucl/tests/test_speed.c (revision f4b37ed0f8b307b1f3f0f630ca725d68f1dff30d)
1 /* Copyright (c) 2013, Vsevolod Stakhov
2  * All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *       * Redistributions of source code must retain the above copyright
7  *         notice, this list of conditions and the following disclaimer.
8  *       * Redistributions in binary form must reproduce the above copyright
9  *         notice, this list of conditions and the following disclaimer in the
10  *         documentation and/or other materials provided with the distribution.
11  *
12  * THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY
13  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
14  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
15  * DISCLAIMED. IN NO EVENT SHALL AUTHOR BE LIABLE FOR ANY
16  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
17  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
18  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
19  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
20  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
21  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
22  */
23 
24 #include <sys/types.h>
25 #include <sys/mman.h>
26 #include <sys/stat.h>
27 #include <sys/time.h>
28 #include <stdio.h>
29 #include <errno.h>
30 #include <unistd.h>
31 #include <fcntl.h>
32 #include <time.h>
33 
34 #ifdef __APPLE__
35 #ifdef HAVE_MACH_MACH_TIME_H
36 #include <mach/mach_time.h>
37 #endif
38 #endif
39 
40 #include "ucl.h"
41 
42 static double
43 get_ticks (void)
44 {
45 	double res;
46 
47 #ifdef __APPLE__
48 	res = mach_absolute_time () / 1000000000.;
49 #else
50 	struct timespec ts;
51 	clock_gettime (CLOCK_MONOTONIC, &ts);
52 
53 	res = (double)ts.tv_sec + ts.tv_nsec / 1000000000.;
54 #endif
55 
56 	return res;
57 }
58 
59 int
60 main (int argc, char **argv)
61 {
62 	void *map;
63 	struct ucl_parser *parser;
64 	ucl_object_t *obj;
65 	int fin;
66 	unsigned char *emitted;
67 	struct stat st;
68 	const char *fname_in = NULL;
69 	int ret = 0;
70 	double start, end, seconds;
71 
72 	switch (argc) {
73 	case 2:
74 		fname_in = argv[1];
75 		break;
76 	}
77 
78 	fin = open (fname_in, O_RDONLY);
79 	if (fin == -1) {
80 		perror ("open failed");
81 		exit (EXIT_FAILURE);
82 	}
83 	parser = ucl_parser_new (UCL_PARSER_ZEROCOPY);
84 
85 	(void)fstat (fin, &st);
86 	map = mmap (NULL, st.st_size, PROT_READ, MAP_SHARED, fin, 0);
87 	if (map == MAP_FAILED) {
88 		perror ("mmap failed");
89 		exit (EXIT_FAILURE);
90 	}
91 
92 	close (fin);
93 
94 	start = get_ticks ();
95 	ucl_parser_add_chunk (parser, map, st.st_size);
96 
97 	obj = ucl_parser_get_object (parser);
98 	end = get_ticks ();
99 
100 	seconds = end - start;
101 	printf ("ucl: parsed input in %.4f seconds\n", seconds);
102 	if (ucl_parser_get_error(parser)) {
103 		printf ("Error occurred: %s\n", ucl_parser_get_error(parser));
104 		ret = 1;
105 		goto err;
106 	}
107 
108 	start = get_ticks ();
109 	emitted = ucl_object_emit (obj, UCL_EMIT_CONFIG);
110 	end = get_ticks ();
111 
112 	seconds = end - start;
113 	printf ("ucl: emitted config in %.4f seconds\n", seconds);
114 
115 	free (emitted);
116 
117 	start = get_ticks ();
118 	emitted = ucl_object_emit (obj, UCL_EMIT_JSON);
119 	end = get_ticks ();
120 
121 	seconds = end - start;
122 	printf ("ucl: emitted json in %.4f seconds\n", seconds);
123 
124 	free (emitted);
125 
126 	start = get_ticks ();
127 	emitted = ucl_object_emit (obj, UCL_EMIT_JSON_COMPACT);
128 	end = get_ticks ();
129 
130 	seconds = end - start;
131 	printf ("ucl: emitted compact json in %.4f seconds\n", seconds);
132 
133 	free (emitted);
134 
135 	start = get_ticks ();
136 	emitted = ucl_object_emit (obj, UCL_EMIT_YAML);
137 	end = get_ticks ();
138 
139 	seconds = end - start;
140 	printf ("ucl: emitted yaml in %.4f seconds\n", seconds);
141 
142 	free (emitted);
143 
144 	ucl_parser_free (parser);
145 	ucl_object_unref (obj);
146 
147 err:
148 	munmap (map, st.st_size);
149 
150 	return ret;
151 }
152