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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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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 expiration expiration time for the content
134 * @param uid unique identifier for the datum;
135 * maybe 0 if no unique identifier is available
139 const struct GNUNET_HashCode *key,
140 size_t size, const void *data,
141 enum GNUNET_BLOCK_Type type,
144 struct GNUNET_TIME_Absolute
145 expiration, uint64_t uid)
148 if ( (0 != offset) &&
151 GNUNET_SCHEDULER_shutdown ();
156 qe = GNUNET_DATASTORE_put (db_dst, 0,
157 key, size, data, type,
159 0 /* FIXME: replication is lost... */,
161 0, 1, GNUNET_TIME_UNIT_FOREVER_REL,
167 * Perform next GET operation.
172 qe = GNUNET_DATASTORE_get_key (db_src,
174 NULL, GNUNET_BLOCK_TYPE_ANY,
176 GNUNET_TIME_UNIT_FOREVER_REL,
183 * Main function that will be run by the scheduler.
186 * @param args remaining command-line arguments
187 * @param cfgfile name of the configuration file used
188 * @param cfg configuration -- for destination datastore
191 run (void *cls, char *const *args, const char *cfgfile,
192 const struct GNUNET_CONFIGURATION_Handle *cfg)
194 if (NULL == alternative_cfg)
195 return; /* nothing to be done */
196 if (0 == strcmp (cfgfile, alternative_cfg))
199 _("Cannot use the same configuration for source and destination\n"));
203 scfg = GNUNET_CONFIGURATION_create ();
205 GNUNET_CONFIGURATION_load (scfg,
208 GNUNET_CONFIGURATION_destroy (scfg);
212 db_src = GNUNET_DATASTORE_connect (scfg);
215 GNUNET_CONFIGURATION_destroy (scfg);
219 db_dst = GNUNET_DATASTORE_connect (cfg);
222 GNUNET_DATASTORE_disconnect (db_src, GNUNET_NO);
223 GNUNET_CONFIGURATION_destroy (scfg);
227 GNUNET_SCHEDULER_add_shutdown (&do_shutdown, NULL);
233 * The main function to manipulate datastores.
235 * @param argc number of arguments from the command line
236 * @param argv command line arguments
237 * @return 0 ok, 1 on error
240 main (int argc, char *const *argv)
242 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
243 { 's', "sourcecfg", "FILENAME",
244 gettext_noop ("specifies the configuration to use to access an alternative datastore; will merge that datastore into our current datastore"),
245 1, &GNUNET_GETOPT_set_filename, &alternative_cfg },
246 GNUNET_GETOPT_OPTION_END
248 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
252 GNUNET_PROGRAM_run (argc, argv, "gnunet-datastore",
253 gettext_noop ("Manipulate GNUnet datastore"),
254 options, &run, NULL))
256 GNUNET_free ((void*) argv);
260 /* end of gnunet-datastore.c */