/*
This file is part of GNUnet.
- (C) 2001, 2002, 2004, 2005, 2006, 2007, 2009 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2001, 2002, 2004, 2005, 2006, 2007, 2009 GNUnet e.V.
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
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.
+ Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
*/
/**
* @file dht/gnunet-dht-get.c
#include "platform.h"
#include "gnunet_dht_service.h"
+#define LOG(kind,...) GNUNET_log_from (kind, "dht-clients",__VA_ARGS__)
/**
* The type of the query
*/
static unsigned int query_type;
+/**
+ * Desired replication level
+ */
+static unsigned int replication = 5;
+
/**
* The key for the query
*/
static char *query_key;
/**
- * User supplied timeout value (in seconds)
+ * User supplied timeout value
*/
-static unsigned long long timeout_request = 5;
+static struct GNUNET_TIME_Relative timeout_request = { 60000 };
/**
- * When this request should really die
+ * Be verbose
*/
-struct GNUNET_TIME_Absolute absolute_timeout;
+static unsigned int verbose;
/**
- * Be verbose
+ * Use DHT demultixplex_everywhere
*/
-static int verbose;
+static int demultixplex_everywhere;
/**
* Handle to the DHT
*/
static struct GNUNET_DHT_Handle *dht_handle;
-
/**
* Global handle of the configuration
*/
*/
static int ret;
+/**
+ * Task scheduled to handle timeout.
+ */
+static struct GNUNET_SCHEDULER_Task *tt;
+
+/**
+ * Task run to clean up on shutdown.
+ *
+ * @param cls unused
+ */
static void
-shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+cleanup_task (void *cls)
{
- if (dht_handle != NULL)
- {
- GNUNET_DHT_disconnect (dht_handle);
- dht_handle = NULL;
- }
+ if (NULL != get_handle)
+ {
+ GNUNET_DHT_get_stop (get_handle);
+ get_handle = NULL;
+ }
+ if (NULL != dht_handle)
+ {
+ GNUNET_DHT_disconnect (dht_handle);
+ dht_handle = NULL;
+ }
+ if (NULL != tt)
+ {
+ GNUNET_SCHEDULER_cancel (tt);
+ tt = NULL;
+ }
}
+/**
+ * Task run on timeout. Triggers shutdown.
+ *
+ * @param cls unused
+ */
static void
-cleanup_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+timeout_task (void *cls)
{
- if (get_handle != NULL)
- {
- GNUNET_DHT_get_stop (get_handle);
- get_handle = NULL;
- }
- GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
+ tt = NULL;
+ GNUNET_SCHEDULER_shutdown ();
}
* @param cls closure
* @param exp when will this value expire
* @param key key of the result
- * @param get_path NULL-terminated array of pointers
- * to the peers on reverse GET path (or NULL if not recorded)
- * @param put_path NULL-terminated array of pointers
- * to the peers on the PUT path (or NULL if not recorded)
+ * @param get_path peers on reply path (or NULL if not recorded)
+ * @param get_path_length number of entries in get_path
+ * @param put_path peers on the PUT path (or NULL if not recorded)
+ * @param put_path_length number of entries in get_path
* @param type type of the result
* @param size number of bytes in data
* @param data pointer to the result data
*/
-void
-get_result_iterator (void *cls,
- struct GNUNET_TIME_Absolute exp,
- const GNUNET_HashCode * key,
- const struct GNUNET_PeerIdentity * const *get_path,
- const struct GNUNET_PeerIdentity * const *put_path,
+static void
+get_result_iterator (void *cls, struct GNUNET_TIME_Absolute exp,
+ const struct GNUNET_HashCode * key,
+ const struct GNUNET_PeerIdentity *get_path,
+ unsigned int get_path_length,
+ const struct GNUNET_PeerIdentity *put_path,
+ unsigned int put_path_length,
enum GNUNET_BLOCK_Type type,
- size_t size,
- const void *data)
+ size_t size,
+ const void *data)
{
- fprintf (stdout, "Result %d, type %d:\n%.*s\n",
- result_count, type,
- (unsigned int) size,
+ FPRINTF (stdout,
+ _("Result %d, type %d:\n%.*s\n"),
+ result_count,
+ type,
+ (unsigned int) size,
(char *) data);
+ if (verbose)
+ {
+ FPRINTF (stdout,
+ " GET path: ");
+ for (unsigned int i=0;i<get_path_length;i++)
+ FPRINTF (stdout,
+ "%s%s",
+ (0 == i) ? "" : "-",
+ GNUNET_i2s (&get_path[i]));
+ FPRINTF (stdout,
+ "\n PUT path: ");
+ for (unsigned int i=0;i<put_path_length;i++)
+ FPRINTF (stdout,
+ "%s%s",
+ (0 == i) ? "" : "-",
+ GNUNET_i2s (&put_path[i]));
+ FPRINTF (stdout,
+ "\n");
+ }
result_count++;
}
* @param c configuration
*/
static void
-run (void *cls,
- char *const *args,
- const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *c)
+run (void *cls, char *const *args, const char *cfgfile,
+ const struct GNUNET_CONFIGURATION_Handle *c)
{
- struct GNUNET_TIME_Relative timeout;
- GNUNET_HashCode key;
- cfg = c;
+ struct GNUNET_HashCode key;
- if (query_key == NULL)
- {
- if (verbose)
- fprintf (stderr, "Must provide key for DHT GET!\n");
- ret = 1;
- return;
- }
-
- dht_handle = GNUNET_DHT_connect (cfg, 1);
-
- if (dht_handle == NULL)
- {
- if (verbose)
- fprintf (stderr, "Couldn't connect to DHT service!\n");
- ret = 1;
- return;
- }
- else if (verbose)
- fprintf (stderr, "Connected to DHT service!\n");
- GNUNET_CRYPTO_hash (query_key, strlen (query_key), &key);
-
- timeout =
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, timeout_request);
- absolute_timeout = GNUNET_TIME_relative_to_absolute (timeout);
+ cfg = c;
+ if (NULL == query_key)
+ {
+ FPRINTF (stderr, "%s", _("Must provide key for DHT GET!\n"));
+ ret = 1;
+ return;
+ }
+ if (NULL == (dht_handle = GNUNET_DHT_connect (cfg, 1)))
+ {
+ FPRINTF (stderr, "%s", _("Failed to connect to DHT service!\n"));
+ ret = 1;
+ return;
+ }
+ if (query_type == GNUNET_BLOCK_TYPE_ANY) /* Type of data not set */
+ query_type = GNUNET_BLOCK_TYPE_TEST;
+ GNUNET_CRYPTO_hash (query_key, strlen (query_key), &key);
if (verbose)
- fprintf (stderr, "Issuing GET request for %s!\n", query_key);
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_absolute_get_remaining
- (absolute_timeout), &cleanup_task, NULL);
- get_handle = GNUNET_DHT_get_start (dht_handle,
- timeout,
- query_type,
- &key,
- DEFAULT_GET_REPLICATION,
- GNUNET_DHT_RO_NONE,
- NULL, 0,
- NULL, 0,
- &get_result_iterator, NULL);
+ FPRINTF (stderr, "%s `%s' \n", _("Issueing DHT GET with key"), GNUNET_h2s_full (&key));
+ GNUNET_SCHEDULER_add_shutdown (&cleanup_task, NULL);
+ tt = GNUNET_SCHEDULER_add_delayed (timeout_request,
+ &timeout_task, NULL);
+ get_handle =
+ GNUNET_DHT_get_start (dht_handle, query_type, &key, replication,
+ (demultixplex_everywhere) ? GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE : GNUNET_DHT_RO_NONE,
+ NULL, 0, &get_result_iterator, NULL);
}
-
-/**
- * gnunet-dht-get command line options
- */
-static struct GNUNET_GETOPT_CommandLineOption options[] = {
- {'k', "key", "KEY",
- gettext_noop ("the query key"),
- 1, &GNUNET_GETOPT_set_string, &query_key},
- {'t', "type", "TYPE",
- gettext_noop ("the type of data to look for"),
- 1, &GNUNET_GETOPT_set_uint, &query_type},
- {'T', "timeout", "TIMEOUT",
- gettext_noop ("how long to execute this query before giving up?"),
- 1, &GNUNET_GETOPT_set_ulong, &timeout_request},
- {'V', "verbose", NULL,
- gettext_noop ("be verbose (print progress information)"),
- 0, &GNUNET_GETOPT_set_one, &verbose},
- GNUNET_GETOPT_OPTION_END
-};
-
-
/**
* Entry point for gnunet-dht-get
*
int
main (int argc, char *const *argv)
{
+
+ struct GNUNET_GETOPT_CommandLineOption options[] = {
+
+ GNUNET_GETOPT_option_string ('k',
+ "key",
+ "KEY",
+ gettext_noop ("the query key"),
+ &query_key),
+
+ GNUNET_GETOPT_option_uint ('r',
+ "replication",
+ "LEVEL",
+ gettext_noop ("how many parallel requests (replicas) to create"),
+ &replication),
+
+
+ GNUNET_GETOPT_option_uint ('t',
+ "type",
+ "TYPE",
+ gettext_noop ("the type of data to look for"),
+ &query_type),
+
+ GNUNET_GETOPT_option_relative_time ('T',
+ "timeout",
+ "TIMEOUT",
+ gettext_noop ("how long to execute this query before giving up?"),
+ &timeout_request),
+
+ GNUNET_GETOPT_option_flag ('x',
+ "demultiplex",
+ gettext_noop ("use DHT's demultiplex everywhere option"),
+ &demultixplex_everywhere),
+
+ GNUNET_GETOPT_option_verbose (&verbose),
+ GNUNET_GETOPT_OPTION_END
+ };
+
+
+
+ if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
+ return 2;
return (GNUNET_OK ==
- GNUNET_PROGRAM_run (argc,
- argv,
- "gnunet-dht-get",
+ GNUNET_PROGRAM_run (argc, argv, "gnunet-dht-get",
gettext_noop
("Issue a GET request to the GNUnet DHT, prints results."),
options, &run, NULL)) ? ret : 1;
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