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diff --git a/src/collectd-tg.c b/src/collectd-tg.c
index c5e15194050d0201be8f295f80b54ecd04255903..9fec340214f4505cf96d9ab0d69fa3b1a800a81a 100644 (file)
--- a/src/collectd-tg.c
+++ b/src/collectd-tg.c
/**
- * collectd - src/collectd-tg.c
- * Copyright (C) 2010 Florian octo Forster
+ * collectd-td - collectd traffic generator
+ * 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
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors:
- * Florian Forster <ff at octo.it>
+ * Florian Forster <octo at collectd.org>
**/
#if HAVE_CONFIG_H
# include "config.h"
#endif
+#ifndef _ISOC99_SOURCE
+# define _ISOC99_SOURCE
+#endif
+
+#ifndef _POSIX_C_SOURCE
+# define _POSIX_C_SOURCE 200809L
+#endif
+
+#ifndef _XOPEN_SOURCE
+# define _XOPEN_SOURCE 700
+#endif
+
+#if !__GNUC__
+# define __attribute__(x) /**/
+#endif
+
#include <stdlib.h>
+#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
+#include <signal.h>
+#include <errno.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 GNU General Public License, version 2 (GPLv2)\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) /* {{{ */
{
- lcc_value_list_t * const *vl0 = v0;
- lcc_value_list_t * const *vl1 = v1;
+ const lcc_value_list_t *vl0 = v0;
+ const lcc_value_list_t *vl1 = v1;
- if ((*vl0)->time < (*vl1)->time)
+ 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) /* {{{ */
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) /* {{{ */
{
lcc_value_list_t *vl;
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 + time (NULL)
+ + (host_num % (1 + (int) vl->interval));
if (get_boundet_random (0, 2) == 0)
vl->values_types[0] = LCC_TYPE_GAUGE;
return (0);
} /* }}} int send_value */
+static int get_integer_opt (const char *str, int *ret_value) /* {{{ */
+{
+ 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);
+ }
+
+ *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);
+ }
+
+ *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) /* {{{ */
{
- size_t i;
+ int i;
+ time_t 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)
{
lcc_server_t *srv;
- srv = lcc_server_create (net, NET_DEFAULT_V6_ADDR, NET_DEFAULT_PORT);
+ srv = lcc_server_create (net, conf_destination, conf_service);
if (srv == NULL)
{
fprintf (stderr, "lcc_server_create failed.\n");
}
lcc_server_set_ttl (srv, 42);
- }
-
- values_num = (size_t) conf_num_values;
- values = calloc (values_num, sizeof (*values));
- if (values == NULL)
- {
- fprintf (stderr, "calloc failed.\n");
- exit (EXIT_FAILURE);
+#if 0
+ lcc_server_set_security_level (srv, ENCRYPT,
+ "admin", "password1");
+#endif
}
fprintf (stdout, "Creating %i values ... ", conf_num_values);
fflush (stdout);
- for (i = 0; i < values_num; i++)
+ for (i = 0; i < conf_num_values; i++)
{
- values[i] = create_value_list ();
- if (values[i] == NULL)
+ lcc_value_list_t *vl;
+
+ 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, "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);
+
+ if (vl == NULL)
+ break;
+
+ if (vl->time != last_time)
+ {
+ printf ("%i values have been sent.\n", values_sent);
+
+ /* Check if we need to sleep */
+ time_t now = time (NULL);
+
+ while (now < vl->time)
+ {
+ /* 1 / 100 second */
+ struct timespec ts = { 0, 10000000 };
+ nanosleep (&ts, /* remaining = */ NULL);
+ now = time (NULL);
+
+ if (!loop)
+ break;
+ }
+ last_time = vl->time;
+ }
- for (i = 0; i < values_num; i++)
- send_value (values[i]);
+ send_value (vl);
+ values_sent++;
- for (i = 0; i < values_num; i++)
- destroy_value_list (values[i]);
- free (values);
+ 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);