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Diffstat (limited to 'src/datacache/plugin_datacache_sqlite.c')
-rw-r--r--src/datacache/plugin_datacache_sqlite.c112
1 files changed, 77 insertions, 35 deletions
diff --git a/src/datacache/plugin_datacache_sqlite.c b/src/datacache/plugin_datacache_sqlite.c
index 15438b29b8..4684e514c7 100644
--- a/src/datacache/plugin_datacache_sqlite.c
+++ b/src/datacache/plugin_datacache_sqlite.c
@@ -2,20 +2,18 @@
This file is part of GNUnet
Copyright (C) 2006, 2009, 2015 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
- by the Free Software Foundation; either version 3, or (at your
- option) any later version.
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ 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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
@@ -38,7 +36,7 @@
* How much overhead do we assume per entry in the
* datacache?
*/
-#define OVERHEAD (sizeof(struct GNUNET_HashCode) + 32)
+#define OVERHEAD (sizeof(struct GNUNET_HashCode) + 36)
/**
* Context for all functions in this plugin.
@@ -83,6 +81,11 @@ struct Plugin
/**
* Prepared statement for #sqlite_plugin_del.
*/
+ sqlite3_stmt *del_expired_stmt;
+
+ /**
+ * Prepared statement for #sqlite_plugin_del.
+ */
sqlite3_stmt *del_stmt;
/**
@@ -150,6 +153,7 @@ sq_prepare (sqlite3 *dbh,
*
* @param cls closure (our `struct Plugin`)
* @param key key to store @a data under
+ * @param xor_distance how close is @a key to our PID?
* @param size number of bytes in @a data
* @param data data to store
* @param type type of the value
@@ -161,6 +165,7 @@ sq_prepare (sqlite3 *dbh,
static ssize_t
sqlite_plugin_put (void *cls,
const struct GNUNET_HashCode *key,
+ uint32_t xor_distance,
size_t size,
const char *data,
enum GNUNET_BLOCK_Type type,
@@ -174,6 +179,7 @@ sqlite_plugin_put (void *cls,
GNUNET_SQ_query_param_uint32 (&type32),
GNUNET_SQ_query_param_absolute_time (&discard_time),
GNUNET_SQ_query_param_auto_from_type (key),
+ GNUNET_SQ_query_param_uint32 (&xor_distance),
GNUNET_SQ_query_param_fixed_size (data, size),
GNUNET_SQ_query_param_fixed_size (path_info,
path_info_len * sizeof (struct GNUNET_PeerIdentity)),
@@ -387,6 +393,7 @@ sqlite_plugin_del (void *cls)
void *data;
size_t dsize;
struct GNUNET_HashCode hc;
+ struct GNUNET_TIME_Absolute now;
struct GNUNET_SQ_ResultSpec rs[] = {
GNUNET_SQ_result_spec_uint64 (&rowid),
GNUNET_SQ_result_spec_auto_from_type (&hc),
@@ -398,27 +405,52 @@ sqlite_plugin_del (void *cls)
GNUNET_SQ_query_param_uint64 (&rowid),
GNUNET_SQ_query_param_end
};
+ struct GNUNET_SQ_QueryParam time_params[] = {
+ GNUNET_SQ_query_param_absolute_time (&now),
+ GNUNET_SQ_query_param_end
+ };
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Processing DEL\n");
- if (SQLITE_ROW !=
- sqlite3_step (plugin->del_select_stmt))
+ now = GNUNET_TIME_absolute_get ();
+ if (GNUNET_OK !=
+ GNUNET_SQ_bind (plugin->del_expired_stmt,
+ time_params))
{
LOG_SQLITE (plugin->dbh,
GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "sqlite3_step");
+ "sqlite3_bind");
GNUNET_SQ_reset (plugin->dbh,
- plugin->del_select_stmt);
+ plugin->del_expired_stmt);
return GNUNET_SYSERR;
}
- if (GNUNET_OK !=
- GNUNET_SQ_extract_result (plugin->del_select_stmt,
- rs))
+ if ( (SQLITE_ROW !=
+ sqlite3_step (plugin->del_expired_stmt)) ||
+ (GNUNET_OK !=
+ GNUNET_SQ_extract_result (plugin->del_expired_stmt,
+ rs)) )
{
- GNUNET_break (0);
GNUNET_SQ_reset (plugin->dbh,
- plugin->del_select_stmt);
- return GNUNET_SYSERR;
+ plugin->del_expired_stmt);
+ if (SQLITE_ROW !=
+ sqlite3_step (plugin->del_select_stmt))
+ {
+ LOG_SQLITE (plugin->dbh,
+ GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "sqlite3_step");
+ GNUNET_SQ_reset (plugin->dbh,
+ plugin->del_select_stmt);
+ return GNUNET_SYSERR;
+ }
+ if (GNUNET_OK !=
+ GNUNET_SQ_extract_result (plugin->del_select_stmt,
+ rs))
+ {
+ GNUNET_SQ_reset (plugin->dbh,
+ plugin->del_select_stmt);
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
}
GNUNET_SQ_cleanup_result (rs);
GNUNET_SQ_reset (plugin->dbh,
@@ -709,13 +741,15 @@ libgnunet_plugin_datacache_sqlite_init (void *cls)
SQLITE3_EXEC (dbh, "PRAGMA sqlite_temp_store=3");
SQLITE3_EXEC (dbh,
- "CREATE TABLE ds090 (" " type INTEGER NOT NULL DEFAULT 0,"
- " expire INTEGER NOT NULL DEFAULT 0,"
+ "CREATE TABLE ds091 ("
+ " type INTEGER NOT NULL DEFAULT 0,"
+ " expire INTEGER NOT NULL,"
" key BLOB NOT NULL DEFAULT '',"
- " value BLOB NOT NULL DEFAULT '',"
+ " prox INTEGER NOT NULL,"
+ " value BLOB NOT NULL,"
" path BLOB DEFAULT '')");
- SQLITE3_EXEC (dbh, "CREATE INDEX idx_hashidx ON ds090 (key,type,expire)");
- SQLITE3_EXEC (dbh, "CREATE INDEX idx_expire ON ds090 (expire)");
+ SQLITE3_EXEC (dbh, "CREATE INDEX idx_hashidx ON ds091 (key,type,expire)");
+ SQLITE3_EXEC (dbh, "CREATE INDEX idx_expire ON ds091 (prox,expire)");
plugin = GNUNET_new (struct Plugin);
plugin->env = env;
plugin->dbh = dbh;
@@ -723,35 +757,42 @@ libgnunet_plugin_datacache_sqlite_init (void *cls)
if ( (SQLITE_OK !=
sq_prepare (plugin->dbh,
- "INSERT INTO ds090 (type, expire, key, value, path) "
- "VALUES (?, ?, ?, ?, ?)",
+ "INSERT INTO ds091 (type, expire, key, prox, value, path) "
+ "VALUES (?, ?, ?, ?, ?, ?)",
&plugin->insert_stmt)) ||
(SQLITE_OK !=
sq_prepare (plugin->dbh,
- "SELECT count(*) FROM ds090 "
+ "SELECT count(*) FROM ds091 "
"WHERE key=? AND type=? AND expire >= ?",
&plugin->get_count_stmt)) ||
(SQLITE_OK !=
sq_prepare (plugin->dbh,
- "SELECT value,expire,path FROM ds090 "
- "WHERE key=? AND type=? AND expire >= ? LIMIT 1 OFFSET ?",
+ "SELECT value,expire,path FROM ds091"
+ " WHERE key=? AND type=? AND expire >= ? LIMIT 1 OFFSET ?",
&plugin->get_stmt)) ||
(SQLITE_OK !=
sq_prepare (plugin->dbh,
- "SELECT _ROWID_,key,value FROM ds090 ORDER BY expire ASC LIMIT 1",
+ "SELECT _ROWID_,key,value FROM ds091"
+ " WHERE expire < ?"
+ " ORDER BY expire ASC LIMIT 1",
+ &plugin->del_expired_stmt)) ||
+ (SQLITE_OK !=
+ sq_prepare (plugin->dbh,
+ "SELECT _ROWID_,key,value FROM ds091"
+ " ORDER BY prox ASC, expire ASC LIMIT 1",
&plugin->del_select_stmt)) ||
(SQLITE_OK !=
sq_prepare (plugin->dbh,
- "DELETE FROM ds090 WHERE _ROWID_=?",
+ "DELETE FROM ds091 WHERE _ROWID_=?",
&plugin->del_stmt)) ||
(SQLITE_OK !=
sq_prepare (plugin->dbh,
- "SELECT value,expire,path,key,type FROM ds090 "
+ "SELECT value,expire,path,key,type FROM ds091 "
"ORDER BY key LIMIT 1 OFFSET ?",
&plugin->get_random_stmt)) ||
(SQLITE_OK !=
sq_prepare (plugin->dbh,
- "SELECT value,expire,path,type,key FROM ds090 "
+ "SELECT value,expire,path,type,key FROM ds091 "
"WHERE key>=? AND expire >= ? ORDER BY KEY ASC LIMIT ?",
&plugin->get_closest_stmt))
)
@@ -807,6 +848,7 @@ libgnunet_plugin_datacache_sqlite_done (void *cls)
sqlite3_finalize (plugin->get_count_stmt);
sqlite3_finalize (plugin->get_stmt);
sqlite3_finalize (plugin->del_select_stmt);
+ sqlite3_finalize (plugin->del_expired_stmt);
sqlite3_finalize (plugin->del_stmt);
sqlite3_finalize (plugin->get_random_stmt);
sqlite3_finalize (plugin->get_closest_stmt);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-21 17:03:41 +0000