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Diffstat (limited to 'src/testbed/gnunet-cmds-helper.c')
-rw-r--r-- | src/testbed/gnunet-cmds-helper.c | 719 |
1 files changed, 719 insertions, 0 deletions
diff --git a/src/testbed/gnunet-cmds-helper.c b/src/testbed/gnunet-cmds-helper.c new file mode 100644 index 000000000..693892a9c --- /dev/null +++ b/src/testbed/gnunet-cmds-helper.c | |||
@@ -0,0 +1,719 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2008--2013, 2016 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your 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 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file testbed/gnunet-cmds-helper.c | ||
23 | * @brief Helper binary that is started from a remote interpreter loop to start | ||
24 | * a local interpreter loop. | ||
25 | * | ||
26 | * This helper monitors for three termination events. They are: (1)The | ||
27 | * stdin of the helper is closed for reading; (2)the helper received | ||
28 | * SIGTERM/SIGINT; (3)the local loop crashed. In case of events 1 and 2 | ||
29 | * the helper kills the interpreter loop. When the interpreter loop | ||
30 | * crashed (event 3), the helper should send a SIGTERM to its own process | ||
31 | * group; this behaviour will help terminate any child processes the loop | ||
32 | * has started and prevents them from leaking and running forever. | ||
33 | * | ||
34 | * @author t3sserakt | ||
35 | * @author Sree Harsha Totakura <sreeharsha@totakura.in> | ||
36 | */ | ||
37 | |||
38 | |||
39 | #include "platform.h" | ||
40 | #include "gnunet_util_lib.h" | ||
41 | #include "gnunet_testing_lib.h" | ||
42 | #include "gnunet_testbed_service.h" | ||
43 | #include "testbed_helper.h" | ||
44 | #include "testbed_api.h" | ||
45 | #include "gnunet_testing_plugin.h" | ||
46 | #include <zlib.h> | ||
47 | #include "execinfo.h" | ||
48 | |||
49 | /** | ||
50 | * Generic logging shortcut | ||
51 | */ | ||
52 | #define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__) | ||
53 | |||
54 | /** | ||
55 | * Debug logging shorthand | ||
56 | */ | ||
57 | #define LOG_DEBUG(...) LOG (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__) | ||
58 | |||
59 | #define NODE_BASE_IP "192.168.15." | ||
60 | |||
61 | #define ROUTER_BASE_IP "92.68.150." | ||
62 | |||
63 | #define MAX_TRACE_DEPTH 50 | ||
64 | |||
65 | /** | ||
66 | * Handle for a plugin. | ||
67 | */ | ||
68 | struct Plugin | ||
69 | { | ||
70 | /** | ||
71 | * Name of the shared library. | ||
72 | */ | ||
73 | char *library_name; | ||
74 | |||
75 | /** | ||
76 | * Plugin API. | ||
77 | */ | ||
78 | struct GNUNET_TESTING_PluginFunctions *api; | ||
79 | |||
80 | char *node_ip; | ||
81 | |||
82 | char *plugin_name; | ||
83 | |||
84 | char *global_n; | ||
85 | |||
86 | char *local_m; | ||
87 | |||
88 | char *n; | ||
89 | |||
90 | char *m; | ||
91 | }; | ||
92 | |||
93 | struct NodeIdentifier | ||
94 | { | ||
95 | char *n; | ||
96 | |||
97 | char *m; | ||
98 | |||
99 | char *global_n; | ||
100 | |||
101 | char *local_m; | ||
102 | }; | ||
103 | |||
104 | /** | ||
105 | * Context for a single write on a chunk of memory | ||
106 | */ | ||
107 | struct WriteContext | ||
108 | { | ||
109 | /** | ||
110 | * The data to write | ||
111 | */ | ||
112 | void *data; | ||
113 | |||
114 | /** | ||
115 | * The length of the data | ||
116 | */ | ||
117 | size_t length; | ||
118 | |||
119 | /** | ||
120 | * The current position from where the write operation should begin | ||
121 | */ | ||
122 | size_t pos; | ||
123 | }; | ||
124 | |||
125 | struct Plugin *plugin; | ||
126 | |||
127 | /** | ||
128 | * The process handle to the testbed service | ||
129 | */ | ||
130 | static struct GNUNET_OS_Process *cmd_binary_process; | ||
131 | |||
132 | /** | ||
133 | * Handle to the testing system | ||
134 | */ | ||
135 | static struct GNUNET_TESTING_System *test_system; | ||
136 | |||
137 | /** | ||
138 | * Our message stream tokenizer | ||
139 | */ | ||
140 | struct GNUNET_MessageStreamTokenizer *tokenizer; | ||
141 | |||
142 | /** | ||
143 | * Disk handle from stdin | ||
144 | */ | ||
145 | static struct GNUNET_DISK_FileHandle *stdin_fd; | ||
146 | |||
147 | /** | ||
148 | * Disk handle for stdout | ||
149 | */ | ||
150 | static struct GNUNET_DISK_FileHandle *stdout_fd; | ||
151 | |||
152 | /** | ||
153 | * Pipe used to communicate shutdown via signal. | ||
154 | */ | ||
155 | static struct GNUNET_DISK_PipeHandle *sigpipe; | ||
156 | |||
157 | /** | ||
158 | * Task identifier for the read task | ||
159 | */ | ||
160 | static struct GNUNET_SCHEDULER_Task *read_task_id; | ||
161 | |||
162 | /** | ||
163 | * Task identifier for the write task | ||
164 | */ | ||
165 | static struct GNUNET_SCHEDULER_Task *write_task_id; | ||
166 | |||
167 | /** | ||
168 | * Task to kill the child | ||
169 | */ | ||
170 | static struct GNUNET_SCHEDULER_Task *child_death_task_id; | ||
171 | |||
172 | /** | ||
173 | * Are we done reading messages from stdin? | ||
174 | */ | ||
175 | static int done_reading; | ||
176 | |||
177 | /** | ||
178 | * Result to return in case we fail | ||
179 | */ | ||
180 | static int status; | ||
181 | |||
182 | |||
183 | struct BacktraceInfo | ||
184 | { | ||
185 | /** | ||
186 | * Array of strings which make up a backtrace from the point when this | ||
187 | * task was scheduled (essentially, who scheduled the task?) | ||
188 | */ | ||
189 | char **backtrace_strings; | ||
190 | |||
191 | /** | ||
192 | * Size of the backtrace_strings array | ||
193 | */ | ||
194 | int num_backtrace_strings; | ||
195 | }; | ||
196 | |||
197 | /** | ||
198 | * Output stack trace of task @a t. | ||
199 | * | ||
200 | * @param t task to dump stack trace of | ||
201 | */ | ||
202 | static void | ||
203 | dump_backtrace (struct BacktraceInfo *t) | ||
204 | { | ||
205 | |||
206 | for (unsigned int i = 0; i < t->num_backtrace_strings; i++) | ||
207 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
208 | "Task %p trace %u: %s\n", | ||
209 | t, | ||
210 | i, | ||
211 | t->backtrace_strings[i]); | ||
212 | |||
213 | } | ||
214 | |||
215 | |||
216 | /** | ||
217 | * Initialize backtrace data for task @a t | ||
218 | * | ||
219 | * @param t task to initialize | ||
220 | */ | ||
221 | static void | ||
222 | init_backtrace () | ||
223 | { | ||
224 | struct BacktraceInfo *t; | ||
225 | void *backtrace_array[MAX_TRACE_DEPTH]; | ||
226 | |||
227 | t = GNUNET_new (struct BacktraceInfo); | ||
228 | t->num_backtrace_strings | ||
229 | = backtrace (backtrace_array, MAX_TRACE_DEPTH); | ||
230 | t->backtrace_strings = | ||
231 | backtrace_symbols (backtrace_array, | ||
232 | t->num_backtrace_strings); | ||
233 | dump_backtrace (t); | ||
234 | |||
235 | } | ||
236 | |||
237 | |||
238 | /** | ||
239 | * Task to shut down cleanly | ||
240 | * | ||
241 | * @param cls NULL | ||
242 | */ | ||
243 | static void | ||
244 | shutdown_task (void *cls) | ||
245 | { | ||
246 | |||
247 | init_backtrace (); | ||
248 | LOG_DEBUG ("Shutting down.\n"); | ||
249 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
250 | "Shutting down tokenizer!\n"); | ||
251 | |||
252 | if (NULL != read_task_id) | ||
253 | { | ||
254 | GNUNET_SCHEDULER_cancel (read_task_id); | ||
255 | read_task_id = NULL; | ||
256 | } | ||
257 | if (NULL != write_task_id) | ||
258 | { | ||
259 | struct WriteContext *wc; | ||
260 | |||
261 | wc = GNUNET_SCHEDULER_cancel (write_task_id); | ||
262 | write_task_id = NULL; | ||
263 | GNUNET_free (wc->data); | ||
264 | GNUNET_free (wc); | ||
265 | } | ||
266 | if (NULL != child_death_task_id) | ||
267 | { | ||
268 | GNUNET_SCHEDULER_cancel (child_death_task_id); | ||
269 | child_death_task_id = NULL; | ||
270 | } | ||
271 | if (NULL != stdin_fd) | ||
272 | (void) GNUNET_DISK_file_close (stdin_fd); | ||
273 | if (NULL != stdout_fd) | ||
274 | (void) GNUNET_DISK_file_close (stdout_fd); | ||
275 | GNUNET_MST_destroy (tokenizer); | ||
276 | tokenizer = NULL; | ||
277 | |||
278 | if (NULL != test_system) | ||
279 | { | ||
280 | GNUNET_TESTING_system_destroy (test_system, GNUNET_YES); | ||
281 | test_system = NULL; | ||
282 | } | ||
283 | } | ||
284 | |||
285 | |||
286 | |||
287 | |||
288 | /** | ||
289 | * Task to write to the standard out | ||
290 | * | ||
291 | * @param cls the WriteContext | ||
292 | */ | ||
293 | static void | ||
294 | write_task (void *cls) | ||
295 | { | ||
296 | struct WriteContext *wc = cls; | ||
297 | ssize_t bytes_wrote; | ||
298 | |||
299 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
300 | "Writing data!\n"); | ||
301 | |||
302 | GNUNET_assert (NULL != wc); | ||
303 | write_task_id = NULL; | ||
304 | bytes_wrote = GNUNET_DISK_file_write (stdout_fd, | ||
305 | wc->data + wc->pos, | ||
306 | wc->length - wc->pos); | ||
307 | if (GNUNET_SYSERR == bytes_wrote) | ||
308 | { | ||
309 | LOG (GNUNET_ERROR_TYPE_WARNING, | ||
310 | "Cannot reply back successful initialization\n"); | ||
311 | GNUNET_free (wc->data); | ||
312 | GNUNET_free (wc); | ||
313 | return; | ||
314 | } | ||
315 | wc->pos += bytes_wrote; | ||
316 | if (wc->pos == wc->length) | ||
317 | { | ||
318 | GNUNET_free (wc->data); | ||
319 | GNUNET_free (wc); | ||
320 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
321 | "Written successfully!\n"); | ||
322 | return; | ||
323 | } | ||
324 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
325 | "Written data!\n"); | ||
326 | write_task_id = GNUNET_SCHEDULER_add_write_file (GNUNET_TIME_UNIT_FOREVER_REL, | ||
327 | stdout_fd, | ||
328 | &write_task, | ||
329 | wc); | ||
330 | } | ||
331 | |||
332 | |||
333 | /** | ||
334 | * Task triggered whenever we receive a SIGCHLD (child | ||
335 | * process died). | ||
336 | * | ||
337 | * @param cls closure, NULL if we need to self-restart | ||
338 | */ | ||
339 | static void | ||
340 | child_death_task (void *cls) | ||
341 | { | ||
342 | const struct GNUNET_DISK_FileHandle *pr; | ||
343 | char c[16]; | ||
344 | |||
345 | pr = GNUNET_DISK_pipe_handle (sigpipe, GNUNET_DISK_PIPE_END_READ); | ||
346 | child_death_task_id = NULL; | ||
347 | /* consume the signal */ | ||
348 | GNUNET_break (0 < GNUNET_DISK_file_read (pr, &c, sizeof(c))); | ||
349 | LOG_DEBUG ("Got SIGCHLD\n"); | ||
350 | |||
351 | LOG_DEBUG ("Child hasn't died. Resuming to monitor its status\n"); | ||
352 | child_death_task_id = | ||
353 | GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL, | ||
354 | pr, | ||
355 | &child_death_task, | ||
356 | NULL); | ||
357 | } | ||
358 | |||
359 | |||
360 | static void | ||
361 | write_message (struct GNUNET_MessageHeader *message, size_t msg_length) | ||
362 | { | ||
363 | struct WriteContext *wc; | ||
364 | |||
365 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
366 | "enter write_message!\n"); | ||
367 | wc = GNUNET_new (struct WriteContext); | ||
368 | wc->length = msg_length; | ||
369 | wc->data = message; | ||
370 | write_task_id = GNUNET_SCHEDULER_add_write_file ( | ||
371 | GNUNET_TIME_UNIT_FOREVER_REL, | ||
372 | stdout_fd, | ||
373 | &write_task, | ||
374 | wc); | ||
375 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
376 | "leave write_message!\n"); | ||
377 | } | ||
378 | |||
379 | |||
380 | /** | ||
381 | * Function to run the test cases. | ||
382 | * | ||
383 | * @param cls plugin to use. | ||
384 | * | ||
385 | */ | ||
386 | static void | ||
387 | run_plugin (void *cls) | ||
388 | { | ||
389 | struct Plugin *plugin = cls; | ||
390 | char *router_ip; | ||
391 | char *node_ip; | ||
392 | |||
393 | router_ip = GNUNET_malloc (strlen (ROUTER_BASE_IP) + strlen (plugin->m) + 1); | ||
394 | strcpy (router_ip, ROUTER_BASE_IP); | ||
395 | strcat (router_ip, plugin->m); | ||
396 | |||
397 | node_ip = GNUNET_malloc (strlen (NODE_BASE_IP) + strlen (plugin->n) + 1); | ||
398 | strcat (node_ip, NODE_BASE_IP); | ||
399 | strcat (node_ip, plugin->n); | ||
400 | |||
401 | plugin->api->start_testcase (&write_message, router_ip, node_ip); | ||
402 | |||
403 | } | ||
404 | |||
405 | |||
406 | /** | ||
407 | * Functions with this signature are called whenever a | ||
408 | * complete message is received by the tokenizer. | ||
409 | * | ||
410 | * Do not call #GNUNET_mst_destroy() in this callback | ||
411 | * | ||
412 | * @param cls identification of the client | ||
413 | * @param message the actual message | ||
414 | * @return #GNUNET_OK on success, | ||
415 | * #GNUNET_NO to stop further processing (no error) | ||
416 | * #GNUNET_SYSERR to stop further processing with error | ||
417 | */ | ||
418 | static int | ||
419 | tokenizer_cb (void *cls, const struct GNUNET_MessageHeader *message) | ||
420 | { | ||
421 | struct NodeIdentifier *ni = cls; | ||
422 | const struct GNUNET_CMDS_HelperInit *msg; | ||
423 | struct GNUNET_CMDS_HelperReply *reply; | ||
424 | char *binary; | ||
425 | char *plugin_name; | ||
426 | size_t plugin_name_size; | ||
427 | uint16_t msize; | ||
428 | size_t msg_length; | ||
429 | char *router_ip; | ||
430 | char *node_ip; | ||
431 | |||
432 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
433 | "tokenizer \n"); | ||
434 | |||
435 | msize = ntohs (message->size); | ||
436 | if (GNUNET_MESSAGE_TYPE_CMDS_HELPER_ALL_PEERS_STARTED == ntohs ( | ||
437 | message->type)) | ||
438 | { | ||
439 | plugin->api->all_peers_started (); | ||
440 | } | ||
441 | else if (GNUNET_MESSAGE_TYPE_CMDS_HELPER_INIT == ntohs (message->type)) | ||
442 | { | ||
443 | msg = (const struct GNUNET_CMDS_HelperInit *) message; | ||
444 | plugin_name_size = ntohs (msg->plugin_name_size); | ||
445 | if ((sizeof(struct GNUNET_CMDS_HelperInit) + plugin_name_size) > msize) | ||
446 | { | ||
447 | GNUNET_break (0); | ||
448 | LOG (GNUNET_ERROR_TYPE_WARNING, | ||
449 | "Received unexpected message -- exiting\n"); | ||
450 | goto error; | ||
451 | } | ||
452 | plugin_name = GNUNET_malloc (plugin_name_size + 1); | ||
453 | GNUNET_strlcpy (plugin_name, | ||
454 | ((char *) &msg[1]), | ||
455 | plugin_name_size + 1); | ||
456 | |||
457 | binary = GNUNET_OS_get_libexec_binary_path ("gnunet-cmd"); | ||
458 | |||
459 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
460 | "plugin_name: %s \n", | ||
461 | plugin_name); | ||
462 | |||
463 | // cmd_binary_process = GNUNET_OS_start_process ( | ||
464 | /*GNUNET_OS_INHERIT_STD_ERR verbose? , | ||
465 | NULL, | ||
466 | NULL, | ||
467 | NULL, | ||
468 | binary, | ||
469 | plugin_name, | ||
470 | ni->global_n, | ||
471 | ni->local_m, | ||
472 | ni->n, | ||
473 | ni->m, | ||
474 | NULL);*/ | ||
475 | |||
476 | plugin = GNUNET_new (struct Plugin); | ||
477 | plugin->api = GNUNET_PLUGIN_load (plugin_name, | ||
478 | NULL); | ||
479 | plugin->library_name = GNUNET_strdup (plugin_name); | ||
480 | |||
481 | plugin->global_n = ni->global_n; | ||
482 | plugin->local_m = ni->local_m; | ||
483 | plugin->n = ni->n; | ||
484 | plugin->m = ni->m; | ||
485 | |||
486 | router_ip = GNUNET_malloc (strlen (ROUTER_BASE_IP) + strlen (plugin->m) | ||
487 | + 1); | ||
488 | strcpy (router_ip, ROUTER_BASE_IP); | ||
489 | strcat (router_ip, plugin->m); | ||
490 | |||
491 | node_ip = GNUNET_malloc (strlen (NODE_BASE_IP) + strlen (plugin->n) + 1); | ||
492 | strcat (node_ip, NODE_BASE_IP); | ||
493 | strcat (node_ip, plugin->n); | ||
494 | |||
495 | plugin->api->start_testcase (&write_message, router_ip, node_ip); | ||
496 | |||
497 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
498 | "We got here!\n"); | ||
499 | |||
500 | /*if (NULL == cmd_binary_process) | ||
501 | { | ||
502 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
503 | "Starting plugin failed!\n"); | ||
504 | return GNUNET_SYSERR; | ||
505 | }*/ | ||
506 | |||
507 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
508 | "We got here 2!\n"); | ||
509 | |||
510 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
511 | "global_n: %s local_n: %s n: %s m: %s.\n", | ||
512 | ni->global_n, | ||
513 | ni->local_m, | ||
514 | ni->n, | ||
515 | ni->m); | ||
516 | |||
517 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
518 | "We got here 3!\n"); | ||
519 | |||
520 | GNUNET_free (binary); | ||
521 | |||
522 | done_reading = GNUNET_YES; | ||
523 | |||
524 | msg_length = sizeof(struct GNUNET_CMDS_HelperReply); | ||
525 | reply = GNUNET_new (struct GNUNET_CMDS_HelperReply); | ||
526 | reply->header.type = htons (GNUNET_MESSAGE_TYPE_CMDS_HELPER_REPLY); | ||
527 | reply->header.size = htons ((uint16_t) msg_length); | ||
528 | |||
529 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
530 | "We got here 4!\n"); | ||
531 | |||
532 | write_message ((struct GNUNET_MessageHeader *) reply, msg_length); | ||
533 | |||
534 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
535 | "We got here 5!\n"); | ||
536 | |||
537 | /*child_death_task_id = GNUNET_SCHEDULER_add_read_file ( | ||
538 | GNUNET_TIME_UNIT_FOREVER_REL, | ||
539 | GNUNET_DISK_pipe_handle (sigpipe, GNUNET_DISK_PIPE_END_READ), | ||
540 | &child_death_task, | ||
541 | NULL);*/ | ||
542 | return GNUNET_OK; | ||
543 | } | ||
544 | else | ||
545 | { | ||
546 | LOG (GNUNET_ERROR_TYPE_WARNING, "Received unexpected message -- exiting\n"); | ||
547 | goto error; | ||
548 | } | ||
549 | |||
550 | |||
551 | error: | ||
552 | status = GNUNET_SYSERR; | ||
553 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
554 | "tokenizer shuting down!\n"); | ||
555 | GNUNET_SCHEDULER_shutdown (); | ||
556 | return GNUNET_SYSERR; | ||
557 | } | ||
558 | |||
559 | |||
560 | /** | ||
561 | * Task to read from stdin | ||
562 | * | ||
563 | * @param cls NULL | ||
564 | */ | ||
565 | static void | ||
566 | read_task (void *cls) | ||
567 | { | ||
568 | char buf[GNUNET_MAX_MESSAGE_SIZE]; | ||
569 | ssize_t sread; | ||
570 | |||
571 | read_task_id = NULL; | ||
572 | sread = GNUNET_DISK_file_read (stdin_fd, buf, sizeof(buf)); | ||
573 | if ((GNUNET_SYSERR == sread) || (0 == sread)) | ||
574 | { | ||
575 | LOG_DEBUG ("STDIN closed\n"); | ||
576 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
577 | "tokenizer shuting down during reading!\n"); | ||
578 | GNUNET_SCHEDULER_shutdown (); | ||
579 | return; | ||
580 | } | ||
581 | if (GNUNET_YES == done_reading) | ||
582 | { | ||
583 | /* didn't expect any more data! */ | ||
584 | GNUNET_break_op (0); | ||
585 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
586 | "tokenizer shuting down during reading, didn't expect any more data!\n"); | ||
587 | GNUNET_SCHEDULER_shutdown (); | ||
588 | return; | ||
589 | } | ||
590 | LOG_DEBUG ("Read %u bytes\n", (unsigned int) sread); | ||
591 | /* FIXME: could introduce a GNUNET_MST_read2 to read | ||
592 | directly from 'stdin_fd' and save a memcpy() here */ | ||
593 | if (GNUNET_OK != | ||
594 | GNUNET_MST_from_buffer (tokenizer, buf, sread, GNUNET_NO, GNUNET_NO)) | ||
595 | { | ||
596 | GNUNET_break (0); | ||
597 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
598 | "tokenizer shuting down during reading, writing to buffer failed!\n"); | ||
599 | GNUNET_SCHEDULER_shutdown (); | ||
600 | return; | ||
601 | } | ||
602 | read_task_id /* No timeout while reading */ | ||
603 | = GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL, | ||
604 | stdin_fd, | ||
605 | &read_task, | ||
606 | NULL); | ||
607 | } | ||
608 | |||
609 | |||
610 | /** | ||
611 | * Main function that will be run. | ||
612 | * | ||
613 | * @param cls closure | ||
614 | * @param args remaining command-line arguments | ||
615 | * @param cfgfile name of the configuration file used (for saving, can be NULL!) | ||
616 | * @param cfg configuration | ||
617 | */ | ||
618 | static void | ||
619 | run (void *cls, | ||
620 | char *const *args, | ||
621 | const char *cfgfile, | ||
622 | const struct GNUNET_CONFIGURATION_Handle *cfg) | ||
623 | { | ||
624 | struct NodeIdentifier *ni = cls; | ||
625 | |||
626 | LOG_DEBUG ("Starting interpreter loop helper...\n"); | ||
627 | |||
628 | tokenizer = GNUNET_MST_create (&tokenizer_cb, ni); | ||
629 | stdin_fd = GNUNET_DISK_get_handle_from_native (stdin); | ||
630 | stdout_fd = GNUNET_DISK_get_handle_from_native (stdout); | ||
631 | read_task_id = GNUNET_SCHEDULER_add_read_file (GNUNET_TIME_UNIT_FOREVER_REL, | ||
632 | stdin_fd, | ||
633 | &read_task, | ||
634 | NULL); | ||
635 | GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL); | ||
636 | } | ||
637 | |||
638 | |||
639 | /** | ||
640 | * Signal handler called for SIGCHLD. | ||
641 | */ | ||
642 | static void | ||
643 | sighandler_child_death () | ||
644 | { | ||
645 | static char c; | ||
646 | int old_errno; /* back-up errno */ | ||
647 | |||
648 | old_errno = errno; | ||
649 | GNUNET_break ( | ||
650 | 1 == | ||
651 | GNUNET_DISK_file_write (GNUNET_DISK_pipe_handle (sigpipe, | ||
652 | GNUNET_DISK_PIPE_END_WRITE), | ||
653 | &c, | ||
654 | sizeof(c))); | ||
655 | errno = old_errno; | ||
656 | } | ||
657 | |||
658 | |||
659 | /** | ||
660 | * Main function | ||
661 | * | ||
662 | * @param argc the number of command line arguments | ||
663 | * @param argv command line arg array | ||
664 | * @return return code | ||
665 | */ | ||
666 | int | ||
667 | main (int argc, char **argv) | ||
668 | { | ||
669 | struct NodeIdentifier *ni; | ||
670 | struct GNUNET_SIGNAL_Context *shc_chld; | ||
671 | struct GNUNET_GETOPT_CommandLineOption options[] = | ||
672 | { GNUNET_GETOPT_OPTION_END }; | ||
673 | int ret; | ||
674 | |||
675 | GNUNET_log_setup ("gnunet-cmds-helper", | ||
676 | "DEBUG", | ||
677 | NULL); | ||
678 | ni = GNUNET_new (struct NodeIdentifier); | ||
679 | ni->global_n = argv[1]; | ||
680 | ni->local_m = argv[2]; | ||
681 | ni->n = argv[3]; | ||
682 | ni->m = argv[4]; | ||
683 | |||
684 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
685 | "global_n: %s local_n: %s n: %s m: %s.\n", | ||
686 | ni->global_n, | ||
687 | ni->local_m, | ||
688 | ni->n, | ||
689 | ni->m); | ||
690 | |||
691 | status = GNUNET_OK; | ||
692 | if (NULL == | ||
693 | (sigpipe = GNUNET_DISK_pipe (GNUNET_DISK_PF_NONE))) | ||
694 | { | ||
695 | GNUNET_break (0); | ||
696 | return 1; | ||
697 | } | ||
698 | shc_chld = | ||
699 | GNUNET_SIGNAL_handler_install (GNUNET_SIGCHLD, &sighandler_child_death); | ||
700 | ret = GNUNET_PROGRAM_run (argc, | ||
701 | argv, | ||
702 | "gnunet-cmds-helper", | ||
703 | "Helper for starting a local interpreter loop", | ||
704 | options, | ||
705 | &run, | ||
706 | ni); | ||
707 | LOG (GNUNET_ERROR_TYPE_ERROR, | ||
708 | "run finished\n"); | ||
709 | GNUNET_SIGNAL_handler_uninstall (shc_chld); | ||
710 | shc_chld = NULL; | ||
711 | GNUNET_DISK_pipe_close (sigpipe); | ||
712 | GNUNET_free (ni); | ||
713 | if (GNUNET_OK != ret) | ||
714 | return 1; | ||
715 | return (GNUNET_OK == status) ? 0 : 1; | ||
716 | } | ||
717 | |||
718 | |||
719 | /* end of gnunet-cmds-helper.c */ | ||