2 This file is part of GNUnet.
3 (C) 2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009, 2010 Christian Grothoff (and other contributing authors)
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 2, or (at your
8 option) any later version.
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.
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., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
23 * @brief main FS functions
24 * @author Christian Grothoff
28 #include "gnunet_util_lib.h"
29 #include "gnunet_fs_service.h"
34 * Start the given job (send signal, remove from pending queue, update
35 * counters and state).
37 * @param qe job to start
40 start_job (struct GNUNET_FS_QueueEntry *qe)
42 qe->client = GNUNET_CLIENT_connect (qe->h->sched, "fs", qe->h->cfg);
43 if (qe->client == NULL)
48 qe->start (qe->cls, qe->client);
50 qe->h->active_blocks += qe->blocks;
51 qe->start_time = GNUNET_TIME_absolute_get ();
52 GNUNET_CONTAINER_DLL_remove (qe->h->pending_head,
55 GNUNET_CONTAINER_DLL_insert_after (qe->h->running_head,
63 * Stop the given job (send signal, remove from active queue, update
64 * counters and state).
66 * @param qe job to stop
69 stop_job (struct GNUNET_FS_QueueEntry *qe)
73 qe->h->active_downloads--;
74 qe->h->active_blocks -= qe->blocks;
75 qe->run_time = GNUNET_TIME_relative_add (qe->run_time,
76 GNUNET_TIME_absolute_get_duration (qe->start_time));
77 GNUNET_CONTAINER_DLL_remove (qe->h->running_head,
80 GNUNET_CONTAINER_DLL_insert_after (qe->h->pending_head,
88 * Process the jobs in the job queue, possibly starting some
89 * and stopping others.
91 * @param cls the 'struct GNUNET_FS_Handle'
92 * @param tc scheduler context
95 process_job_queue (void *cls,
96 const struct GNUNET_SCHEDULER_TaskContext *tc)
98 struct GNUNET_FS_Handle *h = cls;
99 struct GNUNET_FS_QueueEntry *qe;
100 struct GNUNET_FS_QueueEntry *next;
101 struct GNUNET_TIME_Relative run_time;
102 struct GNUNET_TIME_Relative restart_at;
103 struct GNUNET_TIME_Relative rst;
104 struct GNUNET_TIME_Absolute end_time;
106 h->queue_job = GNUNET_SCHEDULER_NO_TASK;
107 next = h->pending_head;
108 while (NULL != (qe = next))
111 if (h->running_head == NULL)
116 if ( (qe->blocks + h->active_blocks <= h->max_parallel_requests) &&
117 (h->active_downloads + 1 <= h->max_parallel_downloads) )
123 if (h->pending_head == NULL)
124 return; /* no need to stop anything */
125 restart_at = GNUNET_TIME_UNIT_FOREVER_REL;
126 next = h->running_head;
127 while (NULL != (qe = next))
130 /* FIXME: might be faster/simpler to do this calculation only once
131 when we start a job (OTOH, this would allow us to dynamically
132 and easily adjust qe->blocks over time, given the right API...) */
133 run_time = GNUNET_TIME_relative_multiply (h->avg_block_latency,
134 qe->blocks * qe->start_times);
135 end_time = GNUNET_TIME_absolute_add (qe->start_time,
137 rst = GNUNET_TIME_absolute_get_remaining (end_time);
138 restart_at = GNUNET_TIME_relative_min (rst, restart_at);
143 h->queue_job = GNUNET_SCHEDULER_add_delayed (h->sched,
151 * Add a job to the queue.
153 * @param h handle to the overall FS state
154 * @param start function to call to begin the job
155 * @param stop function to call to pause the job, or on dequeue (if the job was running)
156 * @param cls closure for start and stop
157 * @param blocks number of blocks this jobs uses
158 * @return queue handle
160 struct GNUNET_FS_QueueEntry *
161 GNUNET_FS_queue_ (struct GNUNET_FS_Handle *h,
162 GNUNET_FS_QueueStart start,
163 GNUNET_FS_QueueStop stop,
167 struct GNUNET_FS_QueueEntry *qe;
169 qe = GNUNET_malloc (sizeof (struct GNUNET_FS_QueueEntry));
174 qe->queue_time = GNUNET_TIME_absolute_get ();
176 GNUNET_CONTAINER_DLL_insert_after (h->pending_head,
180 if (h->queue_job != GNUNET_SCHEDULER_NO_TASK)
181 GNUNET_SCHEDULER_cancel (h->sched,
184 = GNUNET_SCHEDULER_add_now (h->sched,
192 * Dequeue a job from the queue.
193 * @param qh handle for the job
196 GNUNET_FS_dequeue_ (struct GNUNET_FS_QueueEntry *qh)
198 struct GNUNET_FS_Handle *h;
201 if (qh->client != NULL)
203 GNUNET_CONTAINER_DLL_remove (h->pending_head,
207 if (h->queue_job != GNUNET_SCHEDULER_NO_TASK)
208 GNUNET_SCHEDULER_cancel (h->sched,
211 = GNUNET_SCHEDULER_add_now (h->sched,
218 * Return the full filename where we would store state information
219 * (for serialization/deserialization).
221 * @param h master context
222 * @param ext component of the path
223 * @param ent entity identifier (or emtpy string for the directory)
224 * @return NULL on error
227 get_serialization_file_name (struct GNUNET_FS_Handle *h,
234 GNUNET_CONFIGURATION_get_value_filename (h->cfg,
239 GNUNET_asprintf (&ret,
247 GNUNET_free (basename);
253 * Return a read handle for deserialization.
255 * @param h master context
256 * @param ext component of the path
257 * @param ent entity identifier (or emtpy string for the directory)
258 * @return NULL on error
260 static struct GNUNET_BIO_ReadHandle *
261 get_read_handle (struct GNUNET_FS_Handle *h,
266 struct GNUNET_BIO_ReadHandle *ret;
268 fn = get_serialization_file_name (h, ext, ent);
271 ret = GNUNET_BIO_read_open (fn);
278 * Return a write handle for serialization.
280 * @param h master context
281 * @param ext component of the path
282 * @param ent entity identifier (or emtpy string for the directory)
283 * @return NULL on error
285 static struct GNUNET_BIO_WriteHandle *
286 get_write_handle (struct GNUNET_FS_Handle *h,
291 struct GNUNET_BIO_WriteHandle *ret;
293 fn = get_serialization_file_name (h, ext, ent);
296 ret = GNUNET_BIO_write_open (fn);
303 * Using the given serialization filename, try to deserialize
304 * the file-information tree associated with it.
306 * @param h master context
307 * @param filename name of the file (without directory) with
309 * @return NULL on error
311 static struct GNUNET_FS_FileInformation *
312 deserialize_file_information (struct GNUNET_FS_Handle *h,
313 const char *filename);
317 * Using the given serialization filename, try to deserialize
318 * the file-information tree associated with it.
320 * @param h master context
321 * @param fn name of the file (without directory) with
323 * @param rh handle for reading
324 * @return NULL on error
326 static struct GNUNET_FS_FileInformation *
327 deserialize_fi_node (struct GNUNET_FS_Handle *h,
329 struct GNUNET_BIO_ReadHandle *rh)
331 struct GNUNET_FS_FileInformation *ret;
332 struct GNUNET_FS_FileInformation *nxt;
340 GNUNET_BIO_read (rh, "status flag", &b, sizeof(b)))
345 ret = GNUNET_malloc (sizeof (struct GNUNET_FS_FileInformation));
350 GNUNET_BIO_read_meta_data (rh, "metadata", &ret->meta)) ||
352 GNUNET_BIO_read_string (rh, "ksk-uri", &ksks, 32*1024)) ||
355 (ret->keywords = GNUNET_FS_uri_parse (ksks, NULL))) ) ||
357 GNUNET_FS_uri_test_ksk (ret->keywords)) ||
359 GNUNET_BIO_read_string (rh, "chk-uri", &chks, 1024)) ||
362 (ret->chk_uri = GNUNET_FS_uri_parse (chks, NULL))) ||
364 GNUNET_FS_uri_test_chk (ret->chk_uri)) ) ) ||
366 GNUNET_BIO_read_int64 (rh, &ret->expirationTime.value)) ||
368 GNUNET_BIO_read_int64 (rh, &ret->start_time.value)) ||
370 GNUNET_BIO_read_string (rh, "emsg", &ret->emsg, 16*1024)) ||
372 GNUNET_BIO_read_string (rh, "fn", &ret->filename, 16*1024)) ||
374 GNUNET_BIO_read_int32 (rh, &ret->anonymity)) ||
376 GNUNET_BIO_read_int32 (rh, &ret->priority)) )
380 case 0: /* file-insert */
382 GNUNET_BIO_read_int64 (rh, &ret->data.file.file_size))
384 ret->is_directory = GNUNET_NO;
385 ret->data.file.do_index = GNUNET_NO;
386 ret->data.file.have_hash = GNUNET_NO;
387 ret->data.file.index_start_confirmed = GNUNET_NO;
388 /* FIXME: what's our approach for dealing with the
389 'reader' and 'reader_cls' fields? I guess the only
390 good way would be to dump "small" files into
391 'rh' and to not support serialization of "large"
394 case 1: /* file-index, no hash */
396 GNUNET_BIO_read_int64 (rh, &ret->data.file.file_size))
398 ret->is_directory = GNUNET_NO;
399 ret->data.file.do_index = GNUNET_YES;
400 ret->data.file.have_hash = GNUNET_NO;
401 ret->data.file.index_start_confirmed = GNUNET_NO;
402 /* FIXME: what's our approach for dealing with the
403 'reader' and 'reader_cls' fields?
404 (should be easy for indexing since we must have a file) */
406 case 2: /* file-index-with-hash */
408 GNUNET_BIO_read_int64 (rh, &ret->data.file.file_size)) ||
410 GNUNET_BIO_read (rh, "fileid", &ret->data.file.file_id, sizeof (GNUNET_HashCode))) )
412 ret->is_directory = GNUNET_NO;
413 ret->data.file.do_index = GNUNET_YES;
414 ret->data.file.have_hash = GNUNET_YES;
415 ret->data.file.index_start_confirmed = GNUNET_NO;
416 /* FIXME: what's our approach for dealing with the
417 'reader' and 'reader_cls' fields?
418 (should be easy for indexing since we must have a file) */
420 case 3: /* file-index-with-hash-confirmed */
422 GNUNET_BIO_read_int64 (rh, &ret->data.file.file_size)) ||
424 GNUNET_BIO_read (rh, "fileid", &ret->data.file.file_id, sizeof (GNUNET_HashCode))) )
426 ret->is_directory = GNUNET_NO;
427 ret->data.file.do_index = GNUNET_YES;
428 ret->data.file.have_hash = GNUNET_YES;
429 ret->data.file.index_start_confirmed = GNUNET_YES;
430 /* FIXME: what's our approach for dealing with the
431 'reader' and 'reader_cls' fields?
432 (should be easy for indexing since we must have a file) */
434 case 4: /* directory */
436 GNUNET_BIO_read_int32 (rh, &dsize)) ||
437 (NULL == (ret->data.dir.dir_data = GNUNET_malloc_large (dsize))) ||
439 GNUNET_BIO_read (rh, "dir-data", ret->data.dir.dir_data, dsize)) ||
441 GNUNET_BIO_read_string (rh, "ent-filename", &filename, 16*1024)) )
443 ret->data.dir.dir_size = (uint32_t) dsize;
444 ret->is_directory = GNUNET_YES;
445 if (filename != NULL)
447 ret->data.dir.entries = deserialize_file_information (h, filename);
448 GNUNET_free (filename);
450 nxt = ret->data.dir.entries;
462 /* FIXME: adjust ret->start_time! */
463 ret->serialization = GNUNET_strdup (fn);
465 GNUNET_BIO_read_string (rh, "nxt-filename", &filename, 16*1024))
467 if (filename != NULL)
469 ret->next = deserialize_file_information (h, filename);
470 GNUNET_free (filename);
475 GNUNET_free_non_null (ksks);
476 GNUNET_free_non_null (chks);
477 GNUNET_free_non_null (filename);
478 GNUNET_FS_file_information_destroy (ret, NULL, NULL);
485 * Using the given serialization filename, try to deserialize
486 * the file-information tree associated with it.
488 * @param h master context
489 * @param filename name of the file (without directory) with
491 * @return NULL on error
493 static struct GNUNET_FS_FileInformation *
494 deserialize_file_information (struct GNUNET_FS_Handle *h,
495 const char *filename)
497 struct GNUNET_FS_FileInformation *ret;
498 struct GNUNET_BIO_ReadHandle *rh;
501 rh = get_read_handle (h, "publish-fi", filename);
504 ret = deserialize_fi_node (h, filename, rh);
506 GNUNET_BIO_read_close (rh, &emsg))
508 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
509 _("Failed to resume publishing information `%s': %s\n"),
519 * Create a temporary file on disk to store the current
522 * @param fi file information to sync with disk
525 GNUNET_FS_file_information_sync_ (struct GNUNET_FS_FileInformation * fi)
531 struct GNUNET_BIO_WriteHandle *wh;
536 if (NULL == fi->serialization)
538 dn = get_serialization_file_name (fi->h, "publish-fi", "");
539 fn = GNUNET_DISK_mktemp (dn);
542 return; /* epic fail */
547 if (DIR_SEPARATOR == *nxt)
551 if ( (end == NULL) ||
552 (strlen (end) == 0) )
558 GNUNET_break (6 == strlen (end));
559 fi->serialization = GNUNET_strdup (end);
562 wh = get_write_handle (fi->h, "publish-fi", fi->serialization);
565 GNUNET_free (fi->serialization);
566 fi->serialization = NULL;
569 if (GNUNET_YES == fi->is_directory)
571 else if (GNUNET_YES == fi->data.file.index_start_confirmed)
573 else if (GNUNET_YES == fi->data.file.have_hash)
575 else if (GNUNET_YES == fi->data.file.do_index)
579 if (fi->keywords != NULL)
580 ksks = GNUNET_FS_uri_to_string (fi->keywords);
583 if (fi->chk_uri != NULL)
584 chks = GNUNET_FS_uri_to_string (fi->chk_uri);
588 GNUNET_BIO_write (wh, &b, sizeof (b))) ||
590 GNUNET_BIO_write_meta_data (wh, fi->meta)) ||
592 GNUNET_BIO_write_string (wh, ksks)) ||
594 GNUNET_BIO_write_string (wh, chks)) ||
596 GNUNET_BIO_write_int64 (wh, fi->expirationTime.value)) ||
598 GNUNET_BIO_write_int64 (wh, fi->start_time.value)) ||
600 GNUNET_BIO_write_string (wh, fi->emsg)) ||
602 GNUNET_BIO_write_string (wh, fi->filename)) ||
604 GNUNET_BIO_write_int32 (wh, fi->anonymity)) ||
606 GNUNET_BIO_write_int32 (wh, fi->priority)) )
608 GNUNET_free_non_null (chks);
610 GNUNET_free_non_null (ksks);
615 case 0: /* file-insert */
617 GNUNET_BIO_write_int64 (wh, fi->data.file.file_size))
619 /* FIXME: what's our approach for dealing with the
620 'reader' and 'reader_cls' fields? I guess the only
621 good way would be to dump "small" files into
622 'rh' and to not support serialization of "large"
625 case 1: /* file-index, no hash */
627 GNUNET_BIO_write_int64 (wh, fi->data.file.file_size))
630 case 2: /* file-index-with-hash */
631 case 3: /* file-index-with-hash-confirmed */
633 GNUNET_BIO_write_int64 (wh, fi->data.file.file_size)) ||
635 GNUNET_BIO_write (wh, &fi->data.file.file_id, sizeof (GNUNET_HashCode))) )
637 /* FIXME: what's our approach for dealing with the
638 'reader' and 'reader_cls' fields?
639 (should be easy for indexing since we must have a file) */
641 case 4: /* directory */
643 GNUNET_BIO_write_int32 (wh, fi->data.dir.dir_size)) ||
645 GNUNET_BIO_write (wh, fi->data.dir.dir_data, (uint32_t) fi->data.dir.dir_size)) ||
647 GNUNET_BIO_write_string (wh, fi->data.dir.entries->serialization)) )
655 GNUNET_BIO_write_string (wh, fi->next->serialization))
658 GNUNET_BIO_write_close (wh))
661 GNUNET_BIO_write_close (wh);
662 GNUNET_free_non_null (chks);
663 GNUNET_free_non_null (ksks);
664 fn = get_serialization_file_name (fi->h, "publish-fi", fi->serialization);
665 if (0 != UNLINK (fn))
666 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", fn);
668 GNUNET_free (fi->serialization);
669 fi->serialization = NULL;
675 * Find the entry in the file information struct where the
676 * serialization filename matches the given name.
678 * @param pos file information to search
679 * @param srch filename to search for
680 * @return NULL if srch was not found in this subtree
682 static struct GNUNET_FS_FileInformation *
683 find_file_position (struct GNUNET_FS_FileInformation *pos,
686 struct GNUNET_FS_FileInformation *r;
690 if (0 == strcmp (srch,
693 if (pos->is_directory)
695 r = find_file_position (pos->data.dir.entries,
707 * Signal the FS's progress function that we are resuming
710 * @param cls closure (of type "struct GNUNET_FS_PublishContext*")
711 * @param fi the entry in the publish-structure
712 * @param length length of the file or directory
713 * @param meta metadata for the file or directory (can be modified)
714 * @param uri pointer to the keywords that will be used for this entry (can be modified)
715 * @param anonymity pointer to selected anonymity level (can be modified)
716 * @param priority pointer to selected priority (can be modified)
717 * @param expirationTime pointer to selected expiration time (can be modified)
718 * @param client_info pointer to client context set upon creation (can be modified)
719 * @return GNUNET_OK to continue (always)
722 fip_signal_resume(void *cls,
723 struct GNUNET_FS_FileInformation *fi,
725 struct GNUNET_CONTAINER_MetaData *meta,
726 struct GNUNET_FS_Uri **uri,
729 struct GNUNET_TIME_Absolute *expirationTime,
732 struct GNUNET_FS_PublishContext *sc = cls;
733 struct GNUNET_FS_ProgressInfo pi;
735 pi.status = GNUNET_FS_STATUS_PUBLISH_RESUME;
736 pi.value.publish.specifics.resume.message = sc->fi->emsg;
737 pi.value.publish.specifics.resume.chk_uri = sc->fi->chk_uri;
738 *client_info = GNUNET_FS_publish_make_status_ (&pi, sc, fi, 0);
744 * Function called with a filename of serialized publishing operation
747 * @param cls the 'struct GNUNET_FS_Handle*'
748 * @param filename complete filename (absolute path)
749 * @return GNUNET_OK (continue to iterate)
752 deserialize_publish_file (void *cls,
753 const char *filename)
755 struct GNUNET_FS_Handle *h = cls;
756 struct GNUNET_BIO_ReadHandle *rh;
757 struct GNUNET_FS_PublishContext *pc;
765 rh = GNUNET_BIO_read_open (filename);
768 if (0 != UNLINK (filename))
769 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING,
779 pc = GNUNET_malloc (sizeof (struct GNUNET_FS_PublishContext));
782 GNUNET_BIO_read_string (rh, "publish-nid", &pc->nid, 1024)) ||
784 GNUNET_BIO_read_string (rh, "publish-nuid", &pc->nuid, 1024)) ||
786 GNUNET_BIO_read_int32 (rh, &options)) ||
788 GNUNET_BIO_read_int32 (rh, &all_done)) ||
790 GNUNET_BIO_read_string (rh, "publish-firoot", &fi_root, 128)) ||
792 GNUNET_BIO_read_string (rh, "publish-fipos", &fi_pos, 128)) ||
794 GNUNET_BIO_read_string (rh, "publish-ns", &ns, 1024)) )
796 GNUNET_free_non_null (pc->nid);
797 GNUNET_free_non_null (pc->nuid);
798 GNUNET_free_non_null (fi_root);
799 GNUNET_free_non_null (ns);
803 pc->options = options;
804 pc->all_done = all_done;
805 pc->fi = deserialize_file_information (h, fi_root);
808 GNUNET_free_non_null (pc->nid);
809 GNUNET_free_non_null (pc->nuid);
810 GNUNET_free_non_null (fi_root);
811 GNUNET_free_non_null (ns);
817 pc->namespace = GNUNET_FS_namespace_create (h, ns);
818 if (pc->namespace == NULL)
820 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
821 _("Failed to recover namespace `%s', cannot resume publishing operation.\n"),
823 GNUNET_free_non_null (pc->nid);
824 GNUNET_free_non_null (pc->nuid);
825 GNUNET_free_non_null (fi_root);
826 GNUNET_free_non_null (ns);
833 pc->fi_pos = find_file_position (pc->fi,
835 GNUNET_free (fi_pos);
836 if (pc->fi_pos == NULL)
838 /* failed to find position for resuming, outch! Will start from root! */
840 if (pc->all_done != GNUNET_YES)
844 pc->serialization = GNUNET_strdup (filename);
845 /* generate RESUME event(s) */
846 GNUNET_FS_file_information_inspect (pc->fi,
850 /* re-start publishing (if needed)... */
851 if (pc->all_done != GNUNET_YES)
853 = GNUNET_SCHEDULER_add_with_priority (h->sched,
854 GNUNET_SCHEDULER_PRIORITY_BACKGROUND,
855 &GNUNET_FS_publish_main_,
859 GNUNET_BIO_read_close (rh, &emsg))
861 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
862 _("Failed to resume publishing operation `%s': %s\n"),
872 * Deserialize information about pending publish operations.
874 * @param h master context
877 deserialize_publish (struct GNUNET_FS_Handle *h)
881 dn = get_serialization_file_name (h, "publish", "");
884 GNUNET_DISK_directory_scan (dn, &deserialize_publish_file, h);
890 * Setup a connection to the file-sharing service.
892 * @param sched scheduler to use
893 * @param cfg configuration to use
894 * @param client_name unique identifier for this client
895 * @param upcb function to call to notify about FS actions
896 * @param upcb_cls closure for upcb
897 * @param flags specific attributes for fs-operations
898 * @param ... list of optional options, terminated with GNUNET_FS_OPTIONS_END
899 * @return NULL on error
901 struct GNUNET_FS_Handle *
902 GNUNET_FS_start (struct GNUNET_SCHEDULER_Handle *sched,
903 const struct GNUNET_CONFIGURATION_Handle *cfg,
904 const char *client_name,
905 GNUNET_FS_ProgressCallback upcb,
907 enum GNUNET_FS_Flags flags,
910 struct GNUNET_FS_Handle *ret;
911 struct GNUNET_CLIENT_Connection *client;
912 enum GNUNET_FS_OPTIONS opt;
915 client = GNUNET_CLIENT_connect (sched,
920 ret = GNUNET_malloc (sizeof (struct GNUNET_FS_Handle));
923 ret->client_name = GNUNET_strdup (client_name);
925 ret->upcb_cls = upcb_cls;
926 ret->client = client;
928 ret->max_parallel_downloads = 1;
929 ret->max_parallel_requests = 1;
930 ret->avg_block_latency = GNUNET_TIME_UNIT_MINUTES; /* conservative starting point */
931 va_start (ap, flags);
932 while (GNUNET_FS_OPTIONS_END != (opt = va_arg (ap, enum GNUNET_FS_OPTIONS)))
936 case GNUNET_FS_OPTIONS_DOWNLOAD_PARALLELISM:
937 ret->max_parallel_downloads = va_arg (ap, unsigned int);
939 case GNUNET_FS_OPTIONS_REQUEST_PARALLELISM:
940 ret->max_parallel_requests = va_arg (ap, unsigned int);
944 GNUNET_free (ret->client_name);
951 // FIXME: setup receive-loop with client (do we need one?)
953 if (0 != (GNUNET_FS_FLAGS_PERSISTENCE & flags))
955 deserialize_publish (ret);
956 /* FIXME: not implemented! */
957 // Deserialize Search:
958 // * read search queries
959 // * for each query, read file with search results
960 // * for each search result with active download, deserialize download
961 // * for each directory search result, check for active downloads of contents
962 // Deserialize Download:
963 // * always part of search???
964 // Deserialize Unindex:
965 // * read FNs for unindex with progress offset
972 * Close our connection with the file-sharing service.
973 * The callback given to GNUNET_FS_start will no longer be
974 * called after this function returns.
976 * @param h handle that was returned from GNUNET_FS_start
979 GNUNET_FS_stop (struct GNUNET_FS_Handle *h)
981 if (0 != (GNUNET_FS_FLAGS_PERSISTENCE & h->flags))
983 // FIXME: generate SUSPEND events and clean up state!
985 // FIXME: terminate receive-loop with client (do we need one?)
986 if (h->queue_job != GNUNET_SCHEDULER_NO_TASK)
987 GNUNET_SCHEDULER_cancel (h->sched,
989 GNUNET_CLIENT_disconnect (h->client, GNUNET_NO);
990 GNUNET_free (h->client_name);