/**
- * collectd - src/collectd-tg.c
- * Copyright (C) 2010 Florian octo Forster
+ * collectd-tg - src/collectd-tg.c
+ * Copyright (C) 2010-2012 Florian octo Forster
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; only version 2 of the License is applicable.
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
*
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
*
* Authors:
- * Florian Forster <ff at octo.it>
+ * Florian Forster <octo at collectd.org>
**/
#if HAVE_CONFIG_H
-# include "config.h"
+#include "config.h"
#endif
-#include <stdlib.h>
+#if !__GNUC__
+#define __attribute__(x) /**/
+#endif
+
+#include <errno.h>
+#include <math.h>
+#include <signal.h>
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
+#include <sys/time.h>
#include <time.h>
+#include <unistd.h>
+
+#include "utils_heap.h"
#include "libcollectdclient/collectd/client.h"
#include "libcollectdclient/collectd/network.h"
-#include "libcollectdclient/collectd/network_buffer.h"
-static int conf_num_hosts = 1000;
-static int conf_num_plugins = 20;
-static int conf_num_values = 100000;
+#define DEF_NUM_HOSTS 1000
+#define DEF_NUM_PLUGINS 20
+#define DEF_NUM_VALUES 100000
+#define DEF_INTERVAL 10.0
+
+static int conf_num_hosts = DEF_NUM_HOSTS;
+static int conf_num_plugins = DEF_NUM_PLUGINS;
+static int conf_num_values = DEF_NUM_VALUES;
+static double conf_interval = DEF_INTERVAL;
+static const char *conf_destination = NET_DEFAULT_V6_ADDR;
+static const char *conf_service = NET_DEFAULT_PORT;
static lcc_network_t *net;
-static lcc_value_list_t **values;
-static size_t values_num;
+static c_heap_t *values_heap = NULL;
+
+static struct sigaction sigint_action;
+static struct sigaction sigterm_action;
+
+static _Bool loop = 1;
+
+__attribute__((noreturn)) static void exit_usage(int exit_status) /* {{{ */
+{
+ fprintf(
+ (exit_status == EXIT_FAILURE) ? stderr : stdout,
+ "collectd-tg -- collectd traffic generator\n"
+ "\n"
+ " Usage: collectd-ng [OPTION]\n"
+ "\n"
+ " Valid options:\n"
+ " -n <number> Number of value lists. (Default: %i)\n"
+ " -H <number> Number of hosts to emulate. (Default: %i)\n"
+ " -p <number> Number of plugins to emulate. (Default: %i)\n"
+ " -i <seconds> Interval of each value in seconds. (Default: %.3f)\n"
+ " -d <dest> Destination address of the network packets.\n"
+ " (Default: %s)\n"
+ " -D <port> Destination port of the network packets.\n"
+ " (Default: %s)\n"
+ " -h Print usage information (this output).\n"
+ "\n"
+ "Copyright (C) 2010-2012 Florian Forster\n"
+ "Licensed under the MIT license.\n",
+ DEF_NUM_VALUES, DEF_NUM_HOSTS, DEF_NUM_PLUGINS, DEF_INTERVAL,
+ NET_DEFAULT_V6_ADDR, NET_DEFAULT_PORT);
+ exit(exit_status);
+} /* }}} void exit_usage */
+
+static void signal_handler(int signal) /* {{{ */
+{
+ loop = 0;
+} /* }}} void signal_handler */
-static int compare_time (const void *v0, const void *v1) /* {{{ */
+#if HAVE_CLOCK_GETTIME
+static double dtime(void) /* {{{ */
{
- lcc_value_list_t * const *vl0 = v0;
- lcc_value_list_t * const *vl1 = v1;
+ struct timespec ts = {0};
- if ((*vl0)->time < (*vl1)->time)
+ if (clock_gettime(CLOCK_MONOTONIC, &ts) != 0)
+ perror("clock_gettime");
+
+ return ((double)ts.tv_sec) + (((double)ts.tv_nsec) / 1e9);
+} /* }}} double dtime */
+#else
+/* Work around for Mac OS X which doesn't have clock_gettime(2). *sigh* */
+static double dtime(void) /* {{{ */
+{
+ struct timeval tv = {0};
+
+ if (gettimeofday(&tv, /* timezone = */ NULL) != 0)
+ perror("gettimeofday");
+
+ return ((double)tv.tv_sec) + (((double)tv.tv_usec) / 1e6);
+} /* }}} double dtime */
+#endif
+
+static int compare_time(const void *v0, const void *v1) /* {{{ */
+{
+ const lcc_value_list_t *vl0 = v0;
+ const lcc_value_list_t *vl1 = v1;
+
+ if (vl0->time < vl1->time)
return (-1);
- else if ((*vl0)->time > (*vl1)->time)
+ else if (vl0->time > vl1->time)
return (1);
else
- return (lcc_identifier_compare (&(*vl0)->identifier, /* Ouch, somebody */
- &(*vl1)->identifier)); /* is going to hate me for this. */
+ return (0);
} /* }}} int compare_time */
-static int get_boundet_random (int min, int max) /* {{{ */
+static int get_boundet_random(int min, int max) /* {{{ */
{
int range;
range = max - min;
- return (min + ((int) (((double) range) * ((double) random ()) / (((double) RAND_MAX) + 1.0))));
+ return (min + ((int)(((double)range) * ((double)random()) /
+ (((double)RAND_MAX) + 1.0))));
} /* }}} int get_boundet_random */
-#if 0
-static int dump_network_buffer (void) /* {{{ */
-{
- char buffer[LCC_NETWORK_BUFFER_SIZE_DEFAULT];
- size_t buffer_size;
- int status;
- size_t offset;
-
- memset (buffer, 0, sizeof (buffer));
- buffer_size = sizeof (buffer);
-
- status = lcc_network_buffer_get (nb, buffer, &buffer_size);
- if (status != 0)
- {
- fprintf (stderr, "lcc_network_buffer_get failed with status %i.\n",
- status);
- return (status);
- }
-
- if (buffer_size > sizeof (buffer))
- buffer_size = sizeof (buffer);
-
- for (offset = 0; offset < buffer_size; offset += 16)
- {
- size_t i;
-
- for (i = 0; (i < 16) && ((offset + i) < buffer_size); i++)
- {
- uint8_t v = (uint8_t) buffer[offset + i];
- printf ("%02"PRIx8" ", v);
- }
- for (; i < 16; i++)
- printf (" ");
- printf (" ");
- for (i = 0; (i < 16) && ((offset + i) < buffer_size); i++)
- {
- uint8_t v = (uint8_t) buffer[offset + i];
- if ((v >= 32) && (v < 128))
- printf ("%c", (int) buffer[offset + i]);
- else
- printf (".");
- }
- printf ("\n");
- }
-
- return (0);
-} /* }}} int dump_network_buffer */
-#endif
-
-static lcc_value_list_t *create_value_list (void) /* {{{ */
+static lcc_value_list_t *create_value_list(void) /* {{{ */
{
lcc_value_list_t *vl;
int host_num;
- vl = malloc (sizeof (*vl));
- if (vl == NULL)
- {
- fprintf (stderr, "malloc failed.\n");
+ vl = calloc(1, sizeof(*vl));
+ if (vl == NULL) {
+ fprintf(stderr, "calloc failed.\n");
return (NULL);
}
- memset (vl, 0, sizeof (*vl));
- vl->values = calloc (/* nmemb = */ 1, sizeof (*vl->values));
- if (vl->values == NULL)
- {
- fprintf (stderr, "calloc failed.\n");
- free (vl);
+ vl->values = calloc(/* nmemb = */ 1, sizeof(*vl->values));
+ if (vl->values == NULL) {
+ fprintf(stderr, "calloc failed.\n");
+ free(vl);
return (NULL);
}
- vl->values_types = calloc (/* nmemb = */ 1, sizeof (*vl->values_types));
- if (vl->values_types == NULL)
- {
- fprintf (stderr, "calloc failed.\n");
- free (vl->values);
- free (vl);
+ vl->values_types = calloc(/* nmemb = */ 1, sizeof(*vl->values_types));
+ if (vl->values_types == NULL) {
+ fprintf(stderr, "calloc failed.\n");
+ free(vl->values);
+ free(vl);
return (NULL);
}
vl->values_len = 1;
- host_num = get_boundet_random (0, conf_num_hosts);
+ host_num = get_boundet_random(0, conf_num_hosts);
- vl->interval = 10;
- vl->time = time (NULL) - (host_num % vl->interval);
+ vl->interval = conf_interval;
+ vl->time = 1.0 + dtime() + (host_num % (1 + (int)vl->interval));
- if (get_boundet_random (0, 2) == 0)
+ if (get_boundet_random(0, 2) == 0)
vl->values_types[0] = LCC_TYPE_GAUGE;
else
vl->values_types[0] = LCC_TYPE_DERIVE;
- snprintf (vl->identifier.host, sizeof (vl->identifier.host),
- "host%04i", host_num);
- snprintf (vl->identifier.plugin, sizeof (vl->identifier.plugin),
- "plugin%03i", get_boundet_random (0, conf_num_plugins));
- strncpy (vl->identifier.type,
- (vl->values_types[0] == LCC_TYPE_GAUGE) ? "gauge" : "derive",
- sizeof (vl->identifier.type));
- snprintf (vl->identifier.type_instance, sizeof (vl->identifier.type_instance),
- "ti%li", random ());
+ snprintf(vl->identifier.host, sizeof(vl->identifier.host), "host%04i",
+ host_num);
+ snprintf(vl->identifier.plugin, sizeof(vl->identifier.plugin), "plugin%03i",
+ get_boundet_random(0, conf_num_plugins));
+ strncpy(vl->identifier.type,
+ (vl->values_types[0] == LCC_TYPE_GAUGE) ? "gauge" : "derive",
+ sizeof(vl->identifier.type));
+ vl->identifier.type[sizeof(vl->identifier.type) - 1] = 0;
+ snprintf(vl->identifier.type_instance, sizeof(vl->identifier.type_instance),
+ "ti%li", random());
return (vl);
} /* }}} int create_value_list */
-static void destroy_value_list (lcc_value_list_t *vl) /* {{{ */
+static void destroy_value_list(lcc_value_list_t *vl) /* {{{ */
{
if (vl == NULL)
return;
- free (vl->values);
- free (vl->values_types);
- free (vl);
+ free(vl->values);
+ free(vl->values_types);
+ free(vl);
} /* }}} void destroy_value_list */
-static int send_value (lcc_value_list_t *vl) /* {{{ */
+static int send_value(lcc_value_list_t *vl) /* {{{ */
{
int status;
if (vl->values_types[0] == LCC_TYPE_GAUGE)
- vl->values[0].gauge = 100.0 * ((gauge_t) random ()) / (((gauge_t) RAND_MAX) + 1.0);
+ vl->values[0].gauge =
+ 100.0 * ((gauge_t)random()) / (((gauge_t)RAND_MAX) + 1.0);
else
- vl->values[0].derive += get_boundet_random (0, 100);
+ vl->values[0].derive += (derive_t)get_boundet_random(0, 100);
- status = lcc_network_values_send (net, vl);
+ status = lcc_network_values_send(net, vl);
if (status != 0)
- fprintf (stderr, "lcc_network_values_send failed with status %i.\n", status);
+ fprintf(stderr, "lcc_network_values_send failed with status %i.\n", status);
vl->time += vl->interval;
return (0);
} /* }}} int send_value */
-int main (int argc, char **argv) /* {{{ */
+static int get_integer_opt(const char *str, int *ret_value) /* {{{ */
{
- size_t i;
+ char *endptr;
+ int tmp;
+
+ errno = 0;
+ endptr = NULL;
+ tmp = (int)strtol(str, &endptr, /* base = */ 0);
+ if (errno != 0) {
+ fprintf(stderr, "Unable to parse option as a number: \"%s\": %s\n", str,
+ strerror(errno));
+ exit(EXIT_FAILURE);
+ } else if (endptr == str) {
+ fprintf(stderr, "Unable to parse option as a number: \"%s\"\n", str);
+ exit(EXIT_FAILURE);
+ } else if (*endptr != 0) {
+ fprintf(stderr, "Garbage after end of value: \"%s\"\n", str);
+ exit(EXIT_FAILURE);
+ }
- net = lcc_network_create ();
- if (net == NULL)
- {
- fprintf (stderr, "lcc_network_create failed.\n");
- exit (EXIT_FAILURE);
+ *ret_value = tmp;
+ return (0);
+} /* }}} int get_integer_opt */
+
+static int get_double_opt(const char *str, double *ret_value) /* {{{ */
+{
+ char *endptr;
+ double tmp;
+
+ errno = 0;
+ endptr = NULL;
+ tmp = strtod(str, &endptr);
+ if (errno != 0) {
+ fprintf(stderr, "Unable to parse option as a number: \"%s\": %s\n", str,
+ strerror(errno));
+ exit(EXIT_FAILURE);
+ } else if (endptr == str) {
+ fprintf(stderr, "Unable to parse option as a number: \"%s\"\n", str);
+ exit(EXIT_FAILURE);
+ } else if (*endptr != 0) {
+ fprintf(stderr, "Garbage after end of value: \"%s\"\n", str);
+ exit(EXIT_FAILURE);
}
- else
- {
+
+ *ret_value = tmp;
+ return (0);
+} /* }}} int get_double_opt */
+
+static int read_options(int argc, char **argv) /* {{{ */
+{
+ int opt;
+
+ while ((opt = getopt(argc, argv, "n:H:p:i:d:D:h")) != -1) {
+ switch (opt) {
+ case 'n':
+ get_integer_opt(optarg, &conf_num_values);
+ break;
+
+ case 'H':
+ get_integer_opt(optarg, &conf_num_hosts);
+ break;
+
+ case 'p':
+ get_integer_opt(optarg, &conf_num_plugins);
+ break;
+
+ case 'i':
+ get_double_opt(optarg, &conf_interval);
+ break;
+
+ case 'd':
+ conf_destination = optarg;
+ break;
+
+ case 'D':
+ conf_service = optarg;
+ break;
+
+ case 'h':
+ exit_usage(EXIT_SUCCESS);
+
+ default:
+ exit_usage(EXIT_FAILURE);
+ } /* switch (opt) */
+ } /* while (getopt) */
+
+ return (0);
+} /* }}} int read_options */
+
+int main(int argc, char **argv) /* {{{ */
+{
+ double last_time;
+ int values_sent = 0;
+
+ read_options(argc, argv);
+
+ sigint_action.sa_handler = signal_handler;
+ sigaction(SIGINT, &sigint_action, /* old = */ NULL);
+
+ sigterm_action.sa_handler = signal_handler;
+ sigaction(SIGTERM, &sigterm_action, /* old = */ NULL);
+
+ values_heap = c_heap_create(compare_time);
+ if (values_heap == NULL) {
+ fprintf(stderr, "c_heap_create failed.\n");
+ exit(EXIT_FAILURE);
+ }
+
+ net = lcc_network_create();
+ if (net == NULL) {
+ fprintf(stderr, "lcc_network_create failed.\n");
+ exit(EXIT_FAILURE);
+ } else {
lcc_server_t *srv;
-
- srv = lcc_server_create (net, NET_DEFAULT_V6_ADDR, NET_DEFAULT_PORT);
- if (srv == NULL)
- {
- fprintf (stderr, "lcc_server_create failed.\n");
- exit (EXIT_FAILURE);
+
+ srv = lcc_server_create(net, conf_destination, conf_service);
+ if (srv == NULL) {
+ fprintf(stderr, "lcc_server_create failed.\n");
+ exit(EXIT_FAILURE);
}
- lcc_server_set_ttl (srv, 42);
+ lcc_server_set_ttl(srv, 42);
+#if 0
+ lcc_server_set_security_level (srv, ENCRYPT,
+ "admin", "password1");
+#endif
}
- values_num = (size_t) conf_num_values;
- values = calloc (values_num, sizeof (*values));
- if (values == NULL)
- {
- fprintf (stderr, "calloc failed.\n");
- exit (EXIT_FAILURE);
- }
+ fprintf(stdout, "Creating %i values ... ", conf_num_values);
+ fflush(stdout);
+ for (int i = 0; i < conf_num_values; i++) {
+ lcc_value_list_t *vl;
- fprintf (stdout, "Creating %i values ... ", conf_num_values);
- fflush (stdout);
- for (i = 0; i < values_num; i++)
- {
- values[i] = create_value_list ();
- if (values[i] == NULL)
- {
- fprintf (stderr, "create_value_list failed.\n");
- exit (EXIT_FAILURE);
+ vl = create_value_list();
+ if (vl == NULL) {
+ fprintf(stderr, "create_value_list failed.\n");
+ exit(EXIT_FAILURE);
}
+
+ c_heap_insert(values_heap, vl);
}
- fprintf (stdout, "done\n");
+ fprintf(stdout, "done\n");
- fprintf (stdout, "Sorting values by time ... ");
- fflush (stdout);
- qsort (values, values_num, sizeof (*values), compare_time);
- fprintf (stdout, "done\n");
+ last_time = 0;
+ while (loop) {
+ lcc_value_list_t *vl = c_heap_get_root(values_heap);
- for (i = 0; i < values_num; i++)
- send_value (values[i]);
+ if (vl == NULL)
+ break;
- for (i = 0; i < values_num; i++)
- destroy_value_list (values[i]);
- free (values);
+ if (vl->time != last_time) {
+ printf("%i values have been sent.\n", values_sent);
- lcc_network_destroy (net);
- exit (EXIT_SUCCESS);
- return (0);
+ /* Check if we need to sleep */
+ double now = dtime();
+
+ while (now < vl->time) {
+ double diff = vl->time - now;
+ struct timespec ts = {
+ .tv_sec = (time_t)diff,
+ };
+ ts.tv_nsec = (long)((diff - ((double)ts.tv_sec)) * 1e9);
+
+ nanosleep(&ts, /* remaining = */ NULL);
+ now = dtime();
+
+ if (!loop)
+ break;
+ }
+ last_time = vl->time;
+ }
+
+ send_value(vl);
+ values_sent++;
+
+ c_heap_insert(values_heap, vl);
+ }
+
+ fprintf(stdout, "Shutting down.\n");
+ fflush(stdout);
+
+ while (42) {
+ lcc_value_list_t *vl = c_heap_get_root(values_heap);
+ if (vl == NULL)
+ break;
+ destroy_value_list(vl);
+ }
+ c_heap_destroy(values_heap);
+
+ lcc_network_destroy(net);
+ exit(EXIT_SUCCESS);
} /* }}} int main */
/* vim: set sw=2 sts=2 et fdm=marker : */
projects / collectd.git / blobdiff