2 * collectd-tg - src/collectd-tg.c
3 * Copyright (C) 2010-2012 Florian octo Forster
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
24 * Florian Forster <octo at collectd.org>
32 # define __attribute__(x) /**/
43 #include "utils_heap.h"
45 #include "libcollectdclient/collectd/client.h"
46 #include "libcollectdclient/collectd/network.h"
47 #include "libcollectdclient/collectd/network_buffer.h"
49 #define DEF_NUM_HOSTS 1000
50 #define DEF_NUM_PLUGINS 20
51 #define DEF_NUM_VALUES 100000
52 #define DEF_INTERVAL 10.0
54 static int conf_num_hosts = DEF_NUM_HOSTS;
55 static int conf_num_plugins = DEF_NUM_PLUGINS;
56 static int conf_num_values = DEF_NUM_VALUES;
57 static double conf_interval = DEF_INTERVAL;
58 static const char *conf_destination = NET_DEFAULT_V6_ADDR;
59 static const char *conf_service = NET_DEFAULT_PORT;
61 static lcc_network_t *net;
63 static c_heap_t *values_heap = NULL;
65 static struct sigaction sigint_action;
66 static struct sigaction sigterm_action;
68 static _Bool loop = 1;
70 __attribute__((noreturn))
71 static void exit_usage (int exit_status) /* {{{ */
73 fprintf ((exit_status == EXIT_FAILURE) ? stderr : stdout,
74 "collectd-tg -- collectd traffic generator\n"
76 " Usage: collectd-ng [OPTION]\n"
79 " -n <number> Number of value lists. (Default: %i)\n"
80 " -H <number> Number of hosts to emulate. (Default: %i)\n"
81 " -p <number> Number of plugins to emulate. (Default: %i)\n"
82 " -i <seconds> Interval of each value in seconds. (Default: %.3f)\n"
83 " -d <dest> Destination address of the network packets.\n"
85 " -D <port> Destination port of the network packets.\n"
87 " -h Print usage information (this output).\n"
89 "Copyright (C) 2010-2012 Florian Forster\n"
90 "Licensed under the MIT license.\n",
91 DEF_NUM_VALUES, DEF_NUM_HOSTS, DEF_NUM_PLUGINS,
93 NET_DEFAULT_V6_ADDR, NET_DEFAULT_PORT);
95 } /* }}} void exit_usage */
97 static void signal_handler (int signal) /* {{{ */
100 } /* }}} void signal_handler */
102 static int compare_time (const void *v0, const void *v1) /* {{{ */
104 const lcc_value_list_t *vl0 = v0;
105 const lcc_value_list_t *vl1 = v1;
107 if (vl0->time < vl1->time)
109 else if (vl0->time > vl1->time)
113 } /* }}} int compare_time */
115 static int get_boundet_random (int min, int max) /* {{{ */
121 if (min == (max - 1))
126 return (min + ((int) (((double) range) * ((double) random ()) / (((double) RAND_MAX) + 1.0))));
127 } /* }}} int get_boundet_random */
129 static lcc_value_list_t *create_value_list (void) /* {{{ */
131 lcc_value_list_t *vl;
134 vl = malloc (sizeof (*vl));
137 fprintf (stderr, "malloc failed.\n");
140 memset (vl, 0, sizeof (*vl));
142 vl->values = calloc (/* nmemb = */ 1, sizeof (*vl->values));
143 if (vl->values == NULL)
145 fprintf (stderr, "calloc failed.\n");
150 vl->values_types = calloc (/* nmemb = */ 1, sizeof (*vl->values_types));
151 if (vl->values_types == NULL)
153 fprintf (stderr, "calloc failed.\n");
161 host_num = get_boundet_random (0, conf_num_hosts);
163 vl->interval = conf_interval;
164 vl->time = 1.0 + time (NULL)
165 + (host_num % (1 + (int) vl->interval));
167 if (get_boundet_random (0, 2) == 0)
168 vl->values_types[0] = LCC_TYPE_GAUGE;
170 vl->values_types[0] = LCC_TYPE_DERIVE;
172 snprintf (vl->identifier.host, sizeof (vl->identifier.host),
173 "host%04i", host_num);
174 snprintf (vl->identifier.plugin, sizeof (vl->identifier.plugin),
175 "plugin%03i", get_boundet_random (0, conf_num_plugins));
176 strncpy (vl->identifier.type,
177 (vl->values_types[0] == LCC_TYPE_GAUGE) ? "gauge" : "derive",
178 sizeof (vl->identifier.type));
179 vl->identifier.type[sizeof (vl->identifier.type) - 1] = 0;
180 snprintf (vl->identifier.type_instance, sizeof (vl->identifier.type_instance),
184 } /* }}} int create_value_list */
186 static void destroy_value_list (lcc_value_list_t *vl) /* {{{ */
192 free (vl->values_types);
194 } /* }}} void destroy_value_list */
196 static int send_value (lcc_value_list_t *vl) /* {{{ */
200 if (vl->values_types[0] == LCC_TYPE_GAUGE)
201 vl->values[0].gauge = 100.0 * ((gauge_t) random ()) / (((gauge_t) RAND_MAX) + 1.0);
203 vl->values[0].derive += get_boundet_random (0, 100);
205 status = lcc_network_values_send (net, vl);
207 fprintf (stderr, "lcc_network_values_send failed with status %i.\n", status);
209 vl->time += vl->interval;
212 } /* }}} int send_value */
214 static int get_integer_opt (const char *str, int *ret_value) /* {{{ */
221 tmp = (int) strtol (str, &endptr, /* base = */ 0);
224 fprintf (stderr, "Unable to parse option as a number: \"%s\": %s\n",
225 str, strerror (errno));
228 else if (endptr == str)
230 fprintf (stderr, "Unable to parse option as a number: \"%s\"\n", str);
233 else if (*endptr != 0)
235 fprintf (stderr, "Garbage after end of value: \"%s\"\n", str);
241 } /* }}} int get_integer_opt */
243 static int get_double_opt (const char *str, double *ret_value) /* {{{ */
250 tmp = strtod (str, &endptr);
253 fprintf (stderr, "Unable to parse option as a number: \"%s\": %s\n",
254 str, strerror (errno));
257 else if (endptr == str)
259 fprintf (stderr, "Unable to parse option as a number: \"%s\"\n", str);
262 else if (*endptr != 0)
264 fprintf (stderr, "Garbage after end of value: \"%s\"\n", str);
270 } /* }}} int get_double_opt */
272 static int read_options (int argc, char **argv) /* {{{ */
276 while ((opt = getopt (argc, argv, "n:H:p:i:d:D:h")) != -1)
281 get_integer_opt (optarg, &conf_num_values);
285 get_integer_opt (optarg, &conf_num_hosts);
289 get_integer_opt (optarg, &conf_num_plugins);
293 get_double_opt (optarg, &conf_interval);
297 conf_destination = optarg;
301 conf_service = optarg;
305 exit_usage (EXIT_SUCCESS);
308 exit_usage (EXIT_FAILURE);
310 } /* while (getopt) */
313 } /* }}} int read_options */
315 int main (int argc, char **argv) /* {{{ */
321 read_options (argc, argv);
323 sigint_action.sa_handler = signal_handler;
324 sigaction (SIGINT, &sigint_action, /* old = */ NULL);
326 sigterm_action.sa_handler = signal_handler;
327 sigaction (SIGTERM, &sigterm_action, /* old = */ NULL);
330 values_heap = c_heap_create (compare_time);
331 if (values_heap == NULL)
333 fprintf (stderr, "c_heap_create failed.\n");
337 net = lcc_network_create ();
340 fprintf (stderr, "lcc_network_create failed.\n");
347 srv = lcc_server_create (net, conf_destination, conf_service);
350 fprintf (stderr, "lcc_server_create failed.\n");
354 lcc_server_set_ttl (srv, 42);
356 lcc_server_set_security_level (srv, ENCRYPT,
357 "admin", "password1");
361 fprintf (stdout, "Creating %i values ... ", conf_num_values);
363 for (i = 0; i < conf_num_values; i++)
365 lcc_value_list_t *vl;
367 vl = create_value_list ();
370 fprintf (stderr, "create_value_list failed.\n");
374 c_heap_insert (values_heap, vl);
376 fprintf (stdout, "done\n");
381 lcc_value_list_t *vl = c_heap_get_root (values_heap);
386 if (vl->time != last_time)
388 printf ("%i values have been sent.\n", values_sent);
390 /* Check if we need to sleep */
391 time_t now = time (NULL);
393 while (now < vl->time)
396 struct timespec ts = { 0, 10000000 };
397 nanosleep (&ts, /* remaining = */ NULL);
403 last_time = vl->time;
409 c_heap_insert (values_heap, vl);
412 fprintf (stdout, "Shutting down.\n");
417 lcc_value_list_t *vl = c_heap_get_root (values_heap);
420 destroy_value_list (vl);
422 c_heap_destroy (values_heap);
424 lcc_network_destroy (net);
429 /* vim: set sw=2 sts=2 et fdm=marker : */