{GPL, other}: Relicense to MIT license.

[collectd.git] / src / collectd-tg.c

diff --git a/src/collectd-tg.c b/src/collectd-tg.c
index e5b2d1f..82cdce5 100644 (file)
--- a/src/collectd-tg.c
+++ b/src/collectd-tg.c
@@ -1,22 +1,27 @@
 /**
- * collectd-td - collectd traffic generator
- * 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
@@ -56,12 +61,12 @@
 #define DEF_NUM_HOSTS    1000
 #define DEF_NUM_PLUGINS    20
 #define DEF_NUM_VALUES 100000
-#define DEF_INTERVAL       10
+#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 int conf_interval = DEF_INTERVAL;
+static double conf_interval = DEF_INTERVAL;
 static const char *conf_destination = NET_DEFAULT_V6_ADDR;
 static const char *conf_service = NET_DEFAULT_PORT;
 
@@ -86,14 +91,14 @@ static void exit_usage (int exit_status) /* {{{ */
       "    -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: %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  Florian Forster\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,
@@ -168,7 +173,8 @@ static lcc_value_list_t *create_value_list (void) /* {{{ */
   host_num = get_boundet_random (0, conf_num_hosts);
 
   vl->interval = conf_interval;
-  vl->time = time (NULL) + (host_num % vl->interval) + 1;
+  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;
@@ -245,6 +251,35 @@ static int get_integer_opt (const char *str, int *ret_value) /* {{{ */
   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;
@@ -266,7 +301,7 @@ static int read_options (int argc, char **argv) /* {{{ */
         break;
 
       case 'i':
-        get_integer_opt (optarg, &conf_interval);
+        get_double_opt (optarg, &conf_interval);
         break;
 
       case 'd':