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- /*
- This file is part of GNUnet.
- (C) 2001, 2002, 2004, 2005, 2006, 2007, 2009 Christian Grothoff (and other contributing authors)
- GNUnet 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; either version 3, or (at your
- option) any later version.
- GNUnet 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.
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
- */
- /**
- * @file fs/gnunet-unindex.c
- * @brief unindex files published on GNUnet
- * @author Christian Grothoff
- * @author Krista Bennett
- * @author James Blackwell
- * @author Igor Wronsky
- */
- #include "platform.h"
- #include "gnunet_fs_service.h"
- static int ret;
- static int verbose;
- static const struct GNUNET_CONFIGURATION_Handle *cfg;
- static struct GNUNET_FS_Handle *ctx;
- static struct GNUNET_FS_UnindexContext *uc;
- static void
- cleanup_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
- {
- GNUNET_FS_stop (ctx);
- ctx = NULL;
- }
- static void
- shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
- {
- struct GNUNET_FS_UnindexContext *u;
- if (uc != NULL)
- {
- u = uc;
- uc = NULL;
- GNUNET_FS_unindex_stop (u);
- }
- }
- /**
- * Called by FS client to give information about the progress of an
- * operation.
- *
- * @param cls closure
- * @param info details about the event, specifying the event type
- * and various bits about the event
- * @return client-context (for the next progress call
- * for this operation; should be set to NULL for
- * SUSPEND and STOPPED events). The value returned
- * will be passed to future callbacks in the respective
- * field in the GNUNET_FS_ProgressInfo struct.
- */
- static void *
- progress_cb (void *cls, const struct GNUNET_FS_ProgressInfo *info)
- {
- char *s;
- switch (info->status)
- {
- case GNUNET_FS_STATUS_UNINDEX_START:
- break;
- case GNUNET_FS_STATUS_UNINDEX_PROGRESS:
- if (verbose)
- {
- s = GNUNET_STRINGS_relative_time_to_string (info->value.unindex.eta);
- fprintf (stdout, _("Unindexing at %llu/%llu (%s remaining)\n"),
- (unsigned long long) info->value.unindex.completed,
- (unsigned long long) info->value.unindex.size, s);
- GNUNET_free (s);
- }
- break;
- case GNUNET_FS_STATUS_UNINDEX_ERROR:
- fprintf (stderr, _("Error unindexing: %s.\n"),
- info->value.unindex.specifics.error.message);
- GNUNET_SCHEDULER_shutdown ();
- break;
- case GNUNET_FS_STATUS_UNINDEX_COMPLETED:
- fprintf (stdout, _("Unindexing done.\n"));
- GNUNET_SCHEDULER_shutdown ();
- break;
- case GNUNET_FS_STATUS_UNINDEX_STOPPED:
- GNUNET_SCHEDULER_add_continuation (&cleanup_task, NULL,
- GNUNET_SCHEDULER_REASON_PREREQ_DONE);
- break;
- default:
- fprintf (stderr, _("Unexpected status: %d\n"), info->status);
- break;
- }
- return NULL;
- }
- /**
- * Main function that will be run by the scheduler.
- *
- * @param cls closure
- * @param args remaining command-line arguments
- * @param cfgfile name of the configuration file used (for saving, can be NULL!)
- * @param c configuration
- */
- static void
- run (void *cls, char *const *args, const char *cfgfile,
- const struct GNUNET_CONFIGURATION_Handle *c)
- {
- /* check arguments */
- if ((args[0] == NULL) || (args[1] != NULL))
- {
- printf (_("You must specify one and only one filename for unindexing.\n"));
- ret = -1;
- return;
- }
- cfg = c;
- ctx =
- GNUNET_FS_start (cfg, "gnunet-unindex", &progress_cb, NULL,
- GNUNET_FS_FLAGS_NONE, GNUNET_FS_OPTIONS_END);
- if (NULL == ctx)
- {
- fprintf (stderr, _("Could not initialize `%s' subsystem.\n"), "FS");
- ret = 1;
- return;
- }
- uc = GNUNET_FS_unindex_start (ctx, args[0], NULL);
- if (NULL == uc)
- {
- fprintf (stderr, _("Could not start unindex operation.\n"));
- GNUNET_FS_stop (ctx);
- return;
- }
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task,
- NULL);
- }
- /**
- * The main function to unindex content.
- *
- * @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
- */
- int
- main (int argc, char *const *argv)
- {
- static const struct GNUNET_GETOPT_CommandLineOption options[] = {
- {'V', "verbose", NULL,
- gettext_noop ("be verbose (print progress information)"),
- 0, &GNUNET_GETOPT_set_one, &verbose},
- GNUNET_GETOPT_OPTION_END
- };
- return (GNUNET_OK ==
- GNUNET_PROGRAM_run (argc, argv, "gnunet-unindex [OPTIONS] FILENAME",
- gettext_noop
- ("Unindex a file that was previously indexed with gnunet-publish."),
- options, &run, NULL)) ? ret : 1;
- }
- /* end of gnunet-unindex.c */
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