-rps service: prevent division by zero
[oweals/gnunet.git] / src / transport / test_transport_api_manipulation_send_tcp.c
1 /*
2      This file is part of GNUnet.
3      Copyright (C) 2009, 2010, 2016 GNUnet e.V.
4
5      GNUnet is free software; you can redistribute it and/or modify
6      it under the terms of the GNU General Public License as published
7      by the Free Software Foundation; either version 3, or (at your
8      option) any later version.
9
10      GNUnet is distributed in the hope that it will be useful, but
11      WITHOUT ANY WARRANTY; without even the implied warranty of
12      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13      General Public License for more details.
14
15      You should have received a copy of the GNU General Public License
16      along with GNUnet; see the file COPYING.  If not, write to the
17      Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18      Boston, MA 02110-1301, USA.
19 */
20 /**
21  * @file transport/test_transport_api_manipulation_send_tcp.c
22  * @brief base test case for transport traffic manipulation implementation
23  *
24  * This test case will setup 2 peers and connect them, the first message
25  * will be sent without manipulation, then a send delay of 1 second will
26  * be configured and 1 more message will be sent. Time will be measured.
27  *
28  * In addition the distance on receiver side will be manipulated to be 10
29  */
30 #include "platform.h"
31 #include "gnunet_transport_service.h"
32 #include "transport-testing.h"
33
34 /**
35  * How long until we give up on transmitting the message?
36  */
37 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30)
38
39 static struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc;
40
41 static int messages_recv;
42
43 static struct GNUNET_TIME_Absolute start_normal;
44
45 static struct GNUNET_TIME_Relative dur_normal;
46
47 static struct GNUNET_TIME_Absolute start_delayed;
48
49 static struct GNUNET_TIME_Relative dur_delayed;
50
51
52 static void
53 do_free (void *cls)
54 {
55   struct GNUNET_TRANSPORT_TESTING_SendClosure *sc = cls;
56   
57   GNUNET_free (sc);
58 }
59
60
61 static void
62 sendtask (void *cls)
63 {
64   struct GNUNET_TRANSPORT_TESTING_SendClosure *sc;
65   struct GNUNET_TIME_Relative delay;
66   struct GNUNET_ATS_Properties prop;
67
68   sc = GNUNET_new (struct GNUNET_TRANSPORT_TESTING_SendClosure);
69   sc->num_messages = 1;
70   sc->ccc = ccc;
71   sc->cont = &do_free;
72   sc->cont_cls = sc;
73   if (0 == messages_recv)
74   {
75     start_normal = GNUNET_TIME_absolute_get ();
76   }
77   if (1 == messages_recv)
78   {
79     memset (&prop, 0, sizeof (prop));
80     delay = GNUNET_TIME_UNIT_SECONDS;
81     GNUNET_TRANSPORT_manipulation_set (ccc->p[0]->tmh,
82                                        &ccc->p[1]->id,
83                                        &prop,
84                                        GNUNET_TIME_UNIT_ZERO,
85                                        delay);
86     start_delayed = GNUNET_TIME_absolute_get();
87   }
88   GNUNET_TRANSPORT_TESTING_large_send (sc);
89 }
90
91
92 static void
93 notify_receive (void *cls,
94                 struct GNUNET_TRANSPORT_TESTING_PeerContext *receiver,
95                 const struct GNUNET_PeerIdentity *sender,
96                 const struct GNUNET_TRANSPORT_TESTING_TestMessage *message)
97 {
98   {
99     char *ps = GNUNET_strdup (GNUNET_i2s (&receiver->id));
100
101     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
102                 "Peer %u (`%s') received message of type %d and size %u size from peer %s)!\n",
103                 receiver->no,
104                 ps,
105                 ntohs (message->header.type),
106                 ntohs (message->header.size),
107                 GNUNET_i2s (sender));
108     GNUNET_free (ps);
109   }
110
111   if ( (GNUNET_TRANSPORT_TESTING_SIMPLE_MTYPE != ntohs (message->header.type)) ||
112        (GNUNET_TRANSPORT_TESTING_LARGE_MESSAGE_SIZE != ntohs (message->header.size)) )
113   {
114     GNUNET_break (0);
115     ccc->global_ret = GNUNET_SYSERR;
116     GNUNET_SCHEDULER_shutdown ();
117     return;
118   }
119
120   if (0 == messages_recv)
121   {
122     /* Received non-delayed message */
123     dur_normal = GNUNET_TIME_absolute_get_duration(start_normal);
124     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
125                 "Received non-delayed message %u after %s\n",
126                 messages_recv,
127                 GNUNET_STRINGS_relative_time_to_string (dur_normal,
128                                                         GNUNET_YES));
129     GNUNET_SCHEDULER_add_now (&sendtask,
130                               NULL);
131     messages_recv++;
132     return;
133   }
134   /* Received manipulated message */
135   dur_delayed = GNUNET_TIME_absolute_get_duration(start_delayed);
136   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
137               "Received delayed message %u after %s\n",
138               messages_recv,
139               GNUNET_STRINGS_relative_time_to_string (dur_delayed,
140                                                       GNUNET_YES));
141   if (dur_delayed.rel_value_us < GNUNET_TIME_UNIT_SECONDS.rel_value_us)
142   {
143     GNUNET_break (0);
144     ccc->global_ret = GNUNET_SYSERR;
145     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
146                 "Delayed message was not delayed correctly: took only %s\n",
147                 GNUNET_STRINGS_relative_time_to_string (dur_delayed,
148                                                         GNUNET_YES));
149   }
150   else
151   {
152     ccc->global_ret = GNUNET_OK;
153   }
154   GNUNET_SCHEDULER_shutdown ();
155 }
156
157
158 int
159 main (int argc,
160       char *argv[])
161 {
162   struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext my_ccc = {
163     .connect_continuation = &sendtask,
164     .config_file = "test_transport_api_data.conf",
165     .rec = &notify_receive,
166     .nc = &GNUNET_TRANSPORT_TESTING_log_connect,
167     .nd = &GNUNET_TRANSPORT_TESTING_log_disconnect,
168     .timeout = TIMEOUT,
169     .global_ret = GNUNET_NO
170   };
171
172   ccc = &my_ccc;
173   if (GNUNET_OK !=
174       GNUNET_TRANSPORT_TESTING_main (2,
175                                      &GNUNET_TRANSPORT_TESTING_connect_check,
176                                      ccc))
177     return 1;
178   return 0;
179 }
180
181 /* end of test_transport_api_manipulation_send_tcp.c */