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3 Copyright (C) 2010, 2013 GNUnet e.V.
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6 it under the terms of the GNU General Public License as published
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
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22 * @file datastore/gnunet-datastore.c
23 * @brief tool to manipulate datastores
24 * @author Christian Grothoff
27 #include "gnunet_util_lib.h"
28 #include "gnunet_datastore_service.h"
32 * Name of the second configuration file.
34 static char *alternative_cfg;
37 * Global return value.
42 * Our offset on 'get'.
44 static uint64_t offset;
47 * First UID ever returned.
49 static uint64_t first_uid;
52 * Configuration for the source database.
54 static struct GNUNET_CONFIGURATION_Handle *scfg;
57 * Handle for database source.
59 static struct GNUNET_DATASTORE_Handle *db_src;
62 * Handle for database destination.
64 static struct GNUNET_DATASTORE_Handle *db_dst;
69 static struct GNUNET_DATASTORE_QueueEntry *qe;
73 do_shutdown (void *cls)
76 GNUNET_DATASTORE_cancel (qe);
77 GNUNET_DATASTORE_disconnect (db_src, GNUNET_NO);
78 GNUNET_DATASTORE_disconnect (db_dst, GNUNET_NO);
79 GNUNET_CONFIGURATION_destroy (scfg);
84 * Perform next GET operation.
91 * Continuation called to notify client about result of the
95 * @param success GNUNET_SYSERR on failure (including timeout/queue drop)
96 * GNUNET_NO if content was already there
97 * GNUNET_YES (or other positive value) on success
98 * @param min_expiration minimum expiration time required for 0-priority content to be stored
99 * by the datacache at this time, zero for unknown, forever if we have no
100 * space for 0-priority content
101 * @param msg NULL on success, otherwise an error message
104 do_finish (void *cls,
106 struct GNUNET_TIME_Absolute min_expiration,
110 if (GNUNET_SYSERR == success)
113 _("Failed to store item: %s, aborting\n"),
116 GNUNET_SCHEDULER_shutdown ();
124 * Process a datum that was stored in the datastore.
127 * @param key key for the content
128 * @param size number of bytes in data
129 * @param data content stored
130 * @param type type of the content
131 * @param priority priority of the content
132 * @param anonymity anonymity-level for the content
133 * @param replication replication-level for the content
134 * @param expiration expiration time for the content
135 * @param uid unique identifier for the datum;
136 * maybe 0 if no unique identifier is available
140 const struct GNUNET_HashCode *key,
143 enum GNUNET_BLOCK_Type type,
146 uint32_t replication,
147 struct GNUNET_TIME_Absolute
152 if ( (0 != offset) &&
155 GNUNET_SCHEDULER_shutdown ();
160 qe = GNUNET_DATASTORE_put (db_dst,
178 * Perform next GET operation.
183 qe = GNUNET_DATASTORE_get_key (db_src,
185 NULL, GNUNET_BLOCK_TYPE_ANY,
193 * Main function that will be run by the scheduler.
196 * @param args remaining command-line arguments
197 * @param cfgfile name of the configuration file used
198 * @param cfg configuration -- for destination datastore
201 run (void *cls, char *const *args, const char *cfgfile,
202 const struct GNUNET_CONFIGURATION_Handle *cfg)
204 if (NULL == alternative_cfg)
205 return; /* nothing to be done */
206 if (0 == strcmp (cfgfile, alternative_cfg))
209 _("Cannot use the same configuration for source and destination\n"));
213 scfg = GNUNET_CONFIGURATION_create ();
215 GNUNET_CONFIGURATION_load (scfg,
218 GNUNET_CONFIGURATION_destroy (scfg);
222 db_src = GNUNET_DATASTORE_connect (scfg);
225 GNUNET_CONFIGURATION_destroy (scfg);
229 db_dst = GNUNET_DATASTORE_connect (cfg);
232 GNUNET_DATASTORE_disconnect (db_src, GNUNET_NO);
233 GNUNET_CONFIGURATION_destroy (scfg);
237 GNUNET_SCHEDULER_add_shutdown (&do_shutdown, NULL);
243 * The main function to manipulate datastores.
245 * @param argc number of arguments from the command line
246 * @param argv command line arguments
247 * @return 0 ok, 1 on error
250 main (int argc, char *const *argv)
252 struct GNUNET_GETOPT_CommandLineOption options[] = {
253 GNUNET_GETOPT_OPTION_FILENAME ('s',
256 gettext_noop ("specifies the configuration to use to access an alternative datastore; will merge that datastore into our current datastore"),
258 GNUNET_GETOPT_OPTION_END
260 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
264 GNUNET_PROGRAM_run (argc, argv, "gnunet-datastore",
265 gettext_noop ("Manipulate GNUnet datastore"),
266 options, &run, NULL))
268 GNUNET_free ((void*) argv);
272 /* end of gnunet-datastore.c */