2 This file is part of GNUnet.
3 (C) 2011, 2012 Christian Grothoff (and other contributing authors)
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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
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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.
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17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 * @file stream/test_stream_local_halfclose.c
23 * @brief Stream API testing between local peers with half closed connections
24 * @author Sree Harsha Totakura
28 #include <sys/socket.h> /* For SHUT_RD, SHUT_WR */
31 #include "gnunet_util_lib.h"
32 #include "gnunet_mesh_service.h"
33 #include "gnunet_stream_lib.h"
38 * Structure for holding peer's sockets and IO Handles
43 * Peer's stream socket
45 struct GNUNET_STREAM_Socket *socket;
50 struct GNUNET_STREAM_IOHandle *io_handle;
53 * Bytes the peer has written
55 unsigned int bytes_wrote;
58 * Byte the peer has read
60 unsigned int bytes_read;
63 static struct GNUNET_OS_Process *arm_pid;
64 static struct PeerData peer1;
65 static struct PeerData peer2;
66 static struct GNUNET_STREAM_ListenSocket *peer2_listen_socket;
68 static GNUNET_SCHEDULER_TaskIdentifier abort_task;
69 static GNUNET_SCHEDULER_TaskIdentifier test_task;
70 static GNUNET_SCHEDULER_TaskIdentifier read_task;
72 static char *data = "ABCD";
79 do_shutdown (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
81 GNUNET_STREAM_close (peer1.socket);
82 GNUNET_STREAM_close (peer2.socket);
83 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test: shutdown\n");
86 GNUNET_SCHEDULER_cancel (abort_task);
88 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test: arm\n");
89 if (0 != GNUNET_OS_process_kill (arm_pid, SIGTERM))
91 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
93 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test: Wait\n");
94 GNUNET_assert (GNUNET_OK == GNUNET_OS_process_wait (arm_pid));
95 GNUNET_OS_process_close (arm_pid);
100 * Something went wrong and timed out. Kill everything and set error flag
103 do_abort (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
105 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test: ABORT\n");
108 GNUNET_SCHEDULER_cancel (test_task);
112 GNUNET_SCHEDULER_cancel (read_task);
114 result = GNUNET_SYSERR;
116 do_shutdown (cls, tc);
121 * The write completion function; called upon writing some data to stream or
124 * @param cls the closure from GNUNET_STREAM_write/read
125 * @param status the status of the stream at the time this function is called
126 * @param size the number of bytes read or written
129 write_completion (void *cls,
130 enum GNUNET_STREAM_Status status,
133 struct PeerData *peer;
135 peer = (struct PeerData *) cls;
136 GNUNET_assert (GNUNET_STREAM_OK == status);
137 GNUNET_assert (size < strlen (data));
138 peer->bytes_wrote += size;
140 if (peer->bytes_wrote < strlen(data)) /* Have more data to send */
142 peer->io_handle = GNUNET_STREAM_write (peer->socket,
144 strlen(data) - peer->bytes_wrote,
145 GNUNET_TIME_relative_multiply
146 (GNUNET_TIME_UNIT_SECONDS, 5),
149 GNUNET_assert (NULL != peer->io_handle);
153 if (&peer1 == peer) /* Peer1 has finished writing; should read now */
155 peer->io_handle = GNUNET_STREAM_read ((struct GNUNET_STREAM_Socket *)
157 GNUNET_TIME_relative_multiply
158 (GNUNET_TIME_UNIT_SECONDS, 5),
161 GNUNET_assert (NULL!=peer->io_handle);
168 * Function executed after stream has been established
170 * @param cls the closure from GNUNET_STREAM_open
171 * @param socket socket to use to communicate with the other side (read/write)
174 stream_open_cb (void *cls,
175 struct GNUNET_STREAM_Socket *socket)
177 struct PeerData *peer;
179 peer = (struct PeerData *) cls;
180 peer->bytes_wrote = 0;
181 GNUNET_assert (socket == peer1.socket);
182 GNUNET_assert (socket == peer->socket);
183 peer->io_handle = GNUNET_STREAM_write (peer->socket, /* socket */
184 (void *) data, /* data */
186 GNUNET_TIME_relative_multiply
187 (GNUNET_TIME_UNIT_SECONDS, 5),
190 GNUNET_assert (NULL != peer->io_handle);
197 * @param cls the closure from GNUNET_STREAM_write/read
198 * @param status the status of the stream at the time this function is called
199 * @param data traffic from the other side
200 * @param size the number of bytes available in data read
201 * @return number of bytes of processed from 'data' (any data remaining should be
202 * given to the next time the read processor is called).
205 input_processor (void *cls,
206 enum GNUNET_STREAM_Status status,
207 const void *input_data,
210 struct PeerData *peer;
212 peer = (struct PeerData *) cls;
214 /* Peer1 is expected to read when it first finishes writing */
217 /* since p2 closed write */
218 GNUNET_assert (GNUNET_STREAM_SHUTDOWN == status);
219 /* Test passed; shutdown now */
220 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
224 GNUNET_assert (GNUNET_STERAM_OK == status);
225 GNUNET_assert (size < strlen (data));
226 GNUNET_assert (strncmp ((const char *) data + peer->bytes_read,
227 (const char *) input_data,
229 peer->bytes_read += size;
231 if (peer->bytes_read < strlen (data))
233 peer->io_handle = GNUNET_STREAM_read ((struct GNUNET_STREAM_Socket *)
235 GNUNET_TIME_relative_multiply
236 (GNUNET_TIME_UNIT_SECONDS, 5),
239 GNUNET_assert (NULL != peer->io_handle);
247 * Scheduler call back; to be executed when a new stream is connected
248 * Called from listen connect for peer2
251 stream_read (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
253 read_task = GNUNET_SCHEDULER_NO_TASK;
254 GNUNET_assert (NULL != cls);
255 peer2.bytes_read = 0;
256 GNUNET_STREAM_listen_close (peer2_listen_socket); /* Close listen socket */
257 /* Close the stream for writing */
258 GNUNET_STREAM_shutdown ((struct GNUNET_STREAM_Socket *) cls,
260 peer2.io_handle = GNUNET_STREAM_read ((struct GNUNET_STREAM_Socket *) cls,
261 GNUNET_TIME_relative_multiply
262 (GNUNET_TIME_UNIT_SECONDS, 5),
265 GNUNET_assert (NULL != peer2.io_handle);
270 * Functions of this type are called upon new stream connection from other peers
272 * @param cls the closure from GNUNET_STREAM_listen
273 * @param socket the socket representing the stream
274 * @param initiator the identity of the peer who wants to establish a stream
276 * @return GNUNET_OK to keep the socket open, GNUNET_SYSERR to close the
277 * stream (the socket will be invalid after the call)
280 stream_listen_cb (void *cls,
281 struct GNUNET_STREAM_Socket *socket,
282 const struct GNUNET_PeerIdentity *initiator)
284 GNUNET_assert (NULL != socket);
285 GNUNET_assert (NULL == initiator); /* Local peer=NULL? */
286 GNUNET_assert (socket != peer1.socket);
288 peer2.socket = socket;
289 read_task = GNUNET_SCHEDULER_add_now (&stream_read, (void *) socket);
298 test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
300 test_task = GNUNET_SCHEDULER_NO_TASK;
302 /* Connect to stream library */
303 peer1.socket = GNUNET_STREAM_open (NULL, /* Null for local peer? */
307 GNUNET_assert (NULL != peer1.socket);
308 peer2_listen_socket = GNUNET_STREAM_listen (10 /* App port */
311 GNUNET_assert (NULL != peer2_listen_socket);
316 * Initialize framework and start test
319 run (void *cls, char *const *args, const char *cfgfile,
320 const struct GNUNET_CONFIGURATION_Handle *cfg)
322 GNUNET_log_setup ("test_stream_local",
330 GNUNET_OS_start_process (GNUNET_YES, NULL, NULL, "gnunet-service-arm",
331 "gnunet-service-arm",
335 "-c", "test_stream_local.conf", NULL);
338 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
339 (GNUNET_TIME_UNIT_SECONDS, 20), &do_abort,
342 test_task = GNUNET_SCHEDULER_add_now (&test, (void *) cfg);
349 int main (int argc, char **argv)
353 char *const argv2[] = { "test-stream-local",
354 "-c", "test_stream.conf",
361 struct GNUNET_GETOPT_CommandLineOption options[] = {
362 GNUNET_GETOPT_OPTION_END
366 GNUNET_PROGRAM_run ((sizeof (argv2) / sizeof (char *)) - 1, argv2,
367 "test-stream-local", "nohelp", options, &run, NULL);
369 if (GNUNET_OK != ret)
371 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "run failed with error code %d\n",
375 if (GNUNET_SYSERR == result)
377 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "test failed\n");
380 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test ok\n");