/*
* This file is part of GNUnet
- * (C) 2013 Christian Grothoff (and other contributing authors)
+ * Copyright (C) 2013, 2017 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 peerstore/plugin_peerstore_sqlite.c
* @brief sqlite-based peerstore backend
* @author Omar Tarabai
+ * @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet_peerstore_plugin.h"
#include "gnunet_peerstore_service.h"
+#include "gnunet_sq_lib.h"
#include "peerstore.h"
#include <sqlite3.h>
*/
sqlite3_stmt *select_peerstoredata_by_all;
+ /**
+ * Precompiled SQL for deleting expired
+ * records from peerstoredata
+ */
+ sqlite3_stmt *expire_peerstoredata;
+
+ /**
+ * Precompiled SQL for deleting records
+ * with given key
+ */
+ sqlite3_stmt *delete_peerstoredata;
+
};
+
+/**
+ * Delete records with the given key
+ *
+ * @param cls closure (internal context for the plugin)
+ * @param sub_system name of sub system
+ * @param peer Peer identity (can be NULL)
+ * @param key entry key string (can be NULL)
+ * @return number of deleted records, #GNUNE_SYSERR on error
+ */
+static int
+peerstore_sqlite_delete_records (void *cls,
+ const char *sub_system,
+ const struct GNUNET_PeerIdentity *peer,
+ const char *key)
+{
+ struct Plugin *plugin = cls;
+ sqlite3_stmt *stmt = plugin->delete_peerstoredata;
+ struct GNUNET_SQ_QueryParam params[] = {
+ GNUNET_SQ_query_param_string (sub_system),
+ GNUNET_SQ_query_param_auto_from_type (peer),
+ GNUNET_SQ_query_param_string (key),
+ GNUNET_SQ_query_param_end
+ };
+ int ret;
+
+ if (GNUNET_OK !=
+ GNUNET_SQ_bind (stmt,
+ params))
+ {
+ LOG_SQLITE (plugin,
+ GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "sqlite3_bind");
+ GNUNET_SQ_reset (plugin->dbh,
+ stmt);
+ return GNUNET_SYSERR;
+ }
+ if (SQLITE_DONE !=
+ sqlite3_step (stmt))
+ {
+ LOG_SQLITE (plugin,
+ GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "sqlite3_step");
+ ret = GNUNET_SYSERR;
+ }
+ else
+ {
+ ret = sqlite3_changes (plugin->dbh);
+ }
+ GNUNET_SQ_reset (plugin->dbh,
+ stmt);
+ return ret;
+}
+
+
+/**
+ * Delete expired records (expiry < now)
+ *
+ * @param cls closure (internal context for the plugin)
+ * @param now time to use as reference
+ * @param cont continuation called with the number of records expired
+ * @param cont_cls continuation closure
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error and cont is not
+ * called
+ */
+static int
+peerstore_sqlite_expire_records (void *cls, struct GNUNET_TIME_Absolute now,
+ GNUNET_PEERSTORE_Continuation cont,
+ void *cont_cls)
+{
+ struct Plugin *plugin = cls;
+ sqlite3_stmt *stmt = plugin->expire_peerstoredata;
+ struct GNUNET_SQ_QueryParam params[] = {
+ GNUNET_SQ_query_param_absolute_time (&now),
+ GNUNET_SQ_query_param_end
+ };
+
+ if (GNUNET_OK !=
+ GNUNET_SQ_bind (stmt,
+ params))
+ {
+ LOG_SQLITE (plugin,
+ GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "sqlite3_bind");
+ GNUNET_SQ_reset (plugin->dbh,
+ stmt);
+ return GNUNET_SYSERR;
+ }
+ if (SQLITE_DONE != sqlite3_step (stmt))
+ {
+ LOG_SQLITE (plugin,
+ GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "sqlite3_step");
+ GNUNET_SQ_reset (plugin->dbh,
+ stmt);
+ return GNUNET_SYSERR;
+ }
+ if (NULL != cont)
+ cont (cont_cls,
+ sqlite3_changes (plugin->dbh));
+ GNUNET_SQ_reset (plugin->dbh,
+ stmt);
+ return GNUNET_OK;
+}
+
+
/**
* Iterate over the records given an optional peer id
* and/or key.
* @param sub_system name of sub system
* @param peer Peer identity (can be NULL)
* @param key entry key string (can be NULL)
- * @param iter function to call with the result
+ * @param iter function to call asynchronously with the results, terminated
+ * by a NULL result
* @param iter_cls closure for @a iter
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error and iter is not
+ * called
*/
static int
peerstore_sqlite_iterate_records (void *cls,
- const char *sub_system,
- const struct GNUNET_PeerIdentity *peer,
- const char *key,
- GNUNET_PEERSTORE_Processor iter, void *iter_cls)
+ const char *sub_system,
+ const struct GNUNET_PeerIdentity *peer,
+ const char *key,
+ GNUNET_PEERSTORE_Processor iter,
+ void *iter_cls)
{
struct Plugin *plugin = cls;
sqlite3_stmt *stmt;
int err = 0;
int sret;
- const char *ret_sub_system;
- const struct GNUNET_PeerIdentity *ret_peer;
- const char *ret_key;
- const void *ret_value;
- size_t ret_value_size;
- struct GNUNET_TIME_Absolute ret_expiry;
-
- if(NULL == peer && NULL == key)
- {
- stmt = plugin->select_peerstoredata;
- err = (SQLITE_OK != sqlite3_bind_text(stmt, 1, sub_system, strlen(sub_system) + 1, SQLITE_STATIC));
- }
- else if(NULL == key)
- {
- stmt = plugin->select_peerstoredata_by_pid;
- err = (SQLITE_OK != sqlite3_bind_text(stmt, 1, sub_system, strlen(sub_system) + 1, SQLITE_STATIC))
- || (SQLITE_OK != sqlite3_bind_blob(stmt, 2, peer, sizeof(struct GNUNET_PeerIdentity), SQLITE_STATIC));
- }
- else if(NULL == peer)
+ struct GNUNET_PEERSTORE_Record rec;
+
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Executing iterate request on sqlite db.\n");
+ if (NULL == peer)
{
- stmt = plugin->select_peerstoredata_by_key;
- err = (SQLITE_OK != sqlite3_bind_text(stmt, 1, sub_system, strlen(sub_system) + 1, SQLITE_STATIC))
- || (SQLITE_OK != sqlite3_bind_text(stmt, 3, key, strlen(key) + 1, SQLITE_STATIC));
+ if (NULL == key)
+ {
+ struct GNUNET_SQ_QueryParam params[] = {
+ GNUNET_SQ_query_param_string (sub_system),
+ GNUNET_SQ_query_param_end
+ };
+
+ stmt = plugin->select_peerstoredata;
+ err = GNUNET_SQ_bind (stmt,
+ params);
+ }
+ else
+ {
+ struct GNUNET_SQ_QueryParam params[] = {
+ GNUNET_SQ_query_param_string (sub_system),
+ GNUNET_SQ_query_param_string (key),
+ GNUNET_SQ_query_param_end
+ };
+
+ stmt = plugin->select_peerstoredata_by_key;
+ err = GNUNET_SQ_bind (stmt,
+ params);
+ }
}
else
{
- stmt = plugin->select_peerstoredata_by_all;
- err = (SQLITE_OK != sqlite3_bind_text(stmt, 1, sub_system, strlen(sub_system) + 1, SQLITE_STATIC))
- || (SQLITE_OK != sqlite3_bind_blob(stmt, 2, peer, sizeof(struct GNUNET_PeerIdentity), SQLITE_STATIC))
- || (SQLITE_OK != sqlite3_bind_text(stmt, 3, key, strlen(key) + 1, SQLITE_STATIC));
+ if (NULL == key)
+ {
+ struct GNUNET_SQ_QueryParam params[] = {
+ GNUNET_SQ_query_param_string (sub_system),
+ GNUNET_SQ_query_param_auto_from_type (peer),
+ GNUNET_SQ_query_param_end
+ };
+
+ stmt = plugin->select_peerstoredata_by_pid;
+ err = GNUNET_SQ_bind (stmt,
+ params);
+ }
+ else
+ {
+ struct GNUNET_SQ_QueryParam params[] = {
+ GNUNET_SQ_query_param_string (sub_system),
+ GNUNET_SQ_query_param_auto_from_type (peer),
+ GNUNET_SQ_query_param_string (key),
+ GNUNET_SQ_query_param_end
+ };
+
+ stmt = plugin->select_peerstoredata_by_all;
+ err = GNUNET_SQ_bind (stmt,
+ params);
+ }
}
- if (err)
+ if (GNUNET_OK != err)
{
- LOG_SQLITE (plugin, GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "sqlite3_bind_XXXX");
- if (SQLITE_OK != sqlite3_reset (stmt))
- LOG_SQLITE (plugin,
- GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "sqlite3_reset");
+ LOG_SQLITE (plugin,
+ GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "sqlite3_bind_XXXX");
+ GNUNET_SQ_reset (plugin->dbh,
+ stmt);
return GNUNET_SYSERR;
}
+
+ err = 0;
while (SQLITE_ROW == (sret = sqlite3_step (stmt)))
{
- ret_sub_system = (const char *)sqlite3_column_text(stmt, 0);
- ret_peer = sqlite3_column_blob(stmt, 1);
- ret_key = (const char *)sqlite3_column_text(stmt, 2);
- ret_value = sqlite3_column_blob(stmt, 3);
- ret_value_size = sqlite3_column_bytes(stmt, 3);
- ret_expiry.abs_value_us = (uint64_t)sqlite3_column_int64(stmt, 4);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Returning a matched record.\n");
+ struct GNUNET_SQ_ResultSpec rs[] = {
+ GNUNET_SQ_result_spec_string (&rec.sub_system),
+ GNUNET_SQ_result_spec_auto_from_type (&rec.peer),
+ GNUNET_SQ_result_spec_string (&rec.key),
+ GNUNET_SQ_result_spec_variable_size (&rec.value, &rec.value_size),
+ GNUNET_SQ_result_spec_absolute_time (&rec.expiry),
+ GNUNET_SQ_result_spec_end
+ };
+
+ if (GNUNET_OK !=
+ GNUNET_SQ_extract_result (stmt,
+ rs))
+ {
+ GNUNET_break (0);
+ break;
+ }
if (NULL != iter)
iter (iter_cls,
- ret_sub_system,
- ret_peer,
- ret_key,
- ret_value,
- ret_value_size,
- ret_expiry);
+ &rec,
+ NULL);
+ GNUNET_SQ_cleanup_result (rs);
}
if (SQLITE_DONE != sret)
- {
- LOG_SQLITE (plugin, GNUNET_ERROR_TYPE_ERROR, "sqlite_step");
- err = 1;
- }
- if (SQLITE_OK != sqlite3_reset (stmt))
{
LOG_SQLITE (plugin,
- GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "sqlite3_reset");
+ GNUNET_ERROR_TYPE_ERROR,
+ "sqlite_step");
err = 1;
}
- if(err)
- return GNUNET_SYSERR;
+ GNUNET_SQ_reset (plugin->dbh,
+ stmt);
+ if (NULL != iter)
+ iter (iter_cls,
+ NULL,
+ err ? "sqlite error" : NULL);
return GNUNET_OK;
}
+
/**
* Store a record in the peerstore.
* Key is the combination of sub system and peer identity.
* One key can store multiple values.
*
* @param cls closure (internal context for the plugin)
- * @param peer peer identity
* @param sub_system name of the GNUnet sub system responsible
+ * @param peer peer identity
+ * @param key record key string
* @param value value to be stored
* @param size size of value to be stored
- * @return #GNUNET_OK on success, else #GNUNET_SYSERR
+ * @param expiry absolute time after which the record is (possibly) deleted
+ * @param options options related to the store operation
+ * @param cont continuation called when record is stored
+ * @param cont_cls continuation closure
+ * @return #GNUNET_OK on success, else #GNUNET_SYSERR and cont is not called
*/
static int
-peerstore_sqlite_store_record(void *cls,
- const char *sub_system,
- const struct GNUNET_PeerIdentity *peer,
- const char *key,
- const void *value,
- size_t size,
- struct GNUNET_TIME_Absolute expiry)
+peerstore_sqlite_store_record (void *cls,
+ const char *sub_system,
+ const struct GNUNET_PeerIdentity *peer,
+ const char *key,
+ const void *value,
+ size_t size,
+ struct GNUNET_TIME_Absolute expiry,
+ enum GNUNET_PEERSTORE_StoreOption options,
+ GNUNET_PEERSTORE_Continuation cont,
+ void *cont_cls)
{
struct Plugin *plugin = cls;
sqlite3_stmt *stmt = plugin->insert_peerstoredata;
-
- //FIXME: check if value exists with the same key first
-
- if(SQLITE_OK != sqlite3_bind_text(stmt, 1, sub_system, strlen(sub_system) + 1, SQLITE_STATIC)
- || SQLITE_OK != sqlite3_bind_blob(stmt, 2, peer, sizeof(struct GNUNET_PeerIdentity), SQLITE_STATIC)
- || SQLITE_OK != sqlite3_bind_text(stmt, 3, key, strlen(key) + 1, SQLITE_STATIC)
- || SQLITE_OK != sqlite3_bind_blob(stmt, 4, value, size, SQLITE_STATIC)
- || SQLITE_OK != sqlite3_bind_int64(stmt, 5, (sqlite3_int64)expiry.abs_value_us))
- LOG_SQLITE (plugin, GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "sqlite3_bind");
- else if (SQLITE_DONE != sqlite3_step (stmt))
+ struct GNUNET_SQ_QueryParam params[] = {
+ GNUNET_SQ_query_param_string (sub_system),
+ GNUNET_SQ_query_param_auto_from_type (peer),
+ GNUNET_SQ_query_param_string (key),
+ GNUNET_SQ_query_param_fixed_size (value, size),
+ GNUNET_SQ_query_param_absolute_time (&expiry),
+ GNUNET_SQ_query_param_end
+ };
+
+ if (GNUNET_PEERSTORE_STOREOPTION_REPLACE == options)
{
- LOG_SQLITE (plugin, GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "sqlite3_step");
+ peerstore_sqlite_delete_records (cls,
+ sub_system,
+ peer,
+ key);
}
- if (SQLITE_OK != sqlite3_reset (stmt))
+ if (GNUNET_OK !=
+ GNUNET_SQ_bind (stmt,
+ params))
+ LOG_SQLITE (plugin,
+ GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "sqlite3_bind");
+ else if (SQLITE_DONE != sqlite3_step (stmt))
{
- LOG_SQLITE (plugin, GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "sqlite3_reset");
- return GNUNET_SYSERR;
+ LOG_SQLITE (plugin,
+ GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
+ "sqlite3_step");
}
-
+ GNUNET_SQ_reset (plugin->dbh,
+ stmt);
+ if (NULL != cont)
+ cont (cont_cls,
+ GNUNET_OK);
return GNUNET_OK;
}
* @return 0 on success
*/
static int
-sql_exec (sqlite3 *dbh, const char *sql)
+sql_exec (sqlite3 *dbh,
+ const char *sql)
{
int result;
- result = sqlite3_exec (dbh, sql, NULL, NULL, NULL);
+ result = sqlite3_exec (dbh,
+ sql,
+ NULL,
+ NULL,
+ NULL);
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Executed `%s' / %d\n", sql, result);
- if (result != SQLITE_OK)
+ "Executed `%s' / %d\n",
+ sql,
+ result);
+ if (SQLITE_OK != result)
LOG (GNUNET_ERROR_TYPE_ERROR,
- _("Error executing SQL query: %s\n %s\n"),
- sqlite3_errmsg (dbh), sql);
+ _("Error executing SQL query: %s\n %s\n"),
+ sqlite3_errmsg (dbh),
+ sql);
return result;
}
+
/**
* @brief Prepare a SQL statement
*
* @return 0 on success
*/
static int
-sql_prepare (sqlite3 *dbh, const char *sql, sqlite3_stmt **stmt)
+sql_prepare (sqlite3 *dbh,
+ const char *sql,
+ sqlite3_stmt ** stmt)
{
char *tail;
int result;
- result = sqlite3_prepare_v2 (dbh, sql, strlen (sql), stmt,
+ result = sqlite3_prepare_v2 (dbh,
+ sql,
+ strlen (sql),
+ stmt,
(const char **) &tail);
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Prepared `%s' / %p: %d\n", sql, *stmt, result);
- if (result != SQLITE_OK)
+ "Prepared `%s' / %p: %d\n",
+ sql,
+ *stmt,
+ result);
+ if (SQLITE_OK != result)
LOG (GNUNET_ERROR_TYPE_ERROR,
- _("Error preparing SQL query: %s\n %s\n"),
- sqlite3_errmsg (dbh), sql);
+ _("Error preparing SQL query: %s\n %s\n"),
+ sqlite3_errmsg (dbh),
+ sql);
return result;
}
+
/**
* Initialize the database connections and associated
* data structures (create tables and indices
char *filename;
if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_filename (plugin->cfg, "peerstore-sqlite",
- "FILENAME", &filename))
+ GNUNET_CONFIGURATION_get_value_filename (plugin->cfg,
+ "peerstore-sqlite",
+ "FILENAME",
+ &filename))
{
GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
- "peerstore-sqlite", "FILENAME");
+ "peerstore-sqlite",
+ "FILENAME");
return GNUNET_SYSERR;
}
if (GNUNET_OK != GNUNET_DISK_file_test (filename))
}
/* filename should be UTF-8-encoded. If it isn't, it's a bug */
plugin->fn = filename;
-
/* Open database and precompile statements */
- if (SQLITE_OK != sqlite3_open (plugin->fn, &plugin->dbh))
+ if (SQLITE_OK != sqlite3_open (plugin->fn,
+ &plugin->dbh))
{
LOG (GNUNET_ERROR_TYPE_ERROR,
- _("Unable to initialize SQLite: %s.\n"),
- sqlite3_errmsg (plugin->dbh));
+ _("Unable to initialize SQLite: %s.\n"),
+ sqlite3_errmsg (plugin->dbh));
return GNUNET_SYSERR;
}
-
- sql_exec (plugin->dbh, "PRAGMA temp_store=MEMORY");
- sql_exec (plugin->dbh, "PRAGMA synchronous=NORMAL");
- sql_exec (plugin->dbh, "PRAGMA legacy_file_format=OFF");
- sql_exec (plugin->dbh, "PRAGMA auto_vacuum=INCREMENTAL");
- sql_exec (plugin->dbh, "PRAGMA encoding=\"UTF-8\"");
- sql_exec (plugin->dbh, "PRAGMA count_changes=OFF");
- sql_exec (plugin->dbh, "PRAGMA page_size=4096");
-
- sqlite3_busy_timeout (plugin->dbh, BUSY_TIMEOUT_MS);
-
+ sql_exec (plugin->dbh,
+ "PRAGMA temp_store=MEMORY");
+ sql_exec (plugin->dbh,
+ "PRAGMA synchronous=OFF");
+ sql_exec (plugin->dbh,
+ "PRAGMA legacy_file_format=OFF");
+ sql_exec (plugin->dbh,
+ "PRAGMA auto_vacuum=INCREMENTAL");
+ sql_exec (plugin->dbh,
+ "PRAGMA encoding=\"UTF-8\"");
+ sql_exec (plugin->dbh,
+ "PRAGMA page_size=4096");
+ sqlite3_busy_timeout (plugin->dbh,
+ BUSY_TIMEOUT_MS);
/* Create tables */
-
sql_exec (plugin->dbh,
- "CREATE TABLE IF NOT EXISTS peerstoredata (\n"
- " sub_system TEXT NOT NULL,\n"
- " peer_id BLOB NOT NULL,\n"
- " key TEXT NOT NULL,\n"
- " value BLOB NULL,\n"
- " expiry INTEGER NOT NULL"
- ");");
-
+ "CREATE TABLE IF NOT EXISTS peerstoredata (\n"
+ " sub_system TEXT NOT NULL,\n"
+ " peer_id BLOB NOT NULL,\n"
+ " key TEXT NOT NULL,\n"
+ " value BLOB NULL,\n"
+ " expiry INT8 NOT NULL" ");");
+ /* Create Indices */
+ if (SQLITE_OK !=
+ sqlite3_exec (plugin->dbh,
+ "CREATE INDEX IF NOT EXISTS peerstoredata_key_index ON peerstoredata (sub_system, peer_id, key)",
+ NULL,
+ NULL,
+ NULL))
+ {
+ LOG (GNUNET_ERROR_TYPE_ERROR,
+ _("Unable to create indices: %s.\n"),
+ sqlite3_errmsg (plugin->dbh));
+ return GNUNET_SYSERR;
+ }
/* Prepare statements */
sql_prepare (plugin->dbh,
- "INSERT INTO peerstoredata (sub_system, peer_id, key, value, expiry) VALUES (?,?,?,?,?);",
- &plugin->insert_peerstoredata);
- sql_prepare(plugin->dbh,
- "SELECT * FROM peerstoredata"
- " WHERE sub_system = ?",
- &plugin->select_peerstoredata);
- sql_prepare(plugin->dbh,
- "SELECT * FROM peerstoredata"
- " WHERE sub_system = ?"
- " AND peer_id = ?",
- &plugin->select_peerstoredata_by_pid);
- sql_prepare(plugin->dbh,
- "SELECT * FROM peerstoredata"
- " WHERE sub_system = ?"
- " AND key = ?",
- &plugin->select_peerstoredata_by_key);
- sql_prepare(plugin->dbh,
- "SELECT * FROM peerstoredata"
- " WHERE sub_system = ?"
- " AND peer_id = ?"
- " AND key = ?",
- &plugin->select_peerstoredata_by_all);
-
+ "INSERT INTO peerstoredata (sub_system, peer_id, key, value, expiry)"
+ " VALUES (?,?,?,?,?);",
+ &plugin->insert_peerstoredata);
+ sql_prepare (plugin->dbh,
+ "SELECT sub_system,peer_id,key,value,expiry FROM peerstoredata"
+ " WHERE sub_system = ?",
+ &plugin->select_peerstoredata);
+ sql_prepare (plugin->dbh,
+ "SELECT sub_system,peer_id,key,value,expiry FROM peerstoredata"
+ " WHERE sub_system = ?"
+ " AND peer_id = ?",
+ &plugin->select_peerstoredata_by_pid);
+ sql_prepare (plugin->dbh,
+ "SELECT sub_system,peer_id,key,value,expiry FROM peerstoredata"
+ " WHERE sub_system = ?"
+ " AND key = ?",
+ &plugin->select_peerstoredata_by_key);
+ sql_prepare (plugin->dbh,
+ "SELECT sub_system,peer_id,key,value,expiry FROM peerstoredata"
+ " WHERE sub_system = ?"
+ " AND peer_id = ?" " AND key = ?",
+ &plugin->select_peerstoredata_by_all);
+ sql_prepare (plugin->dbh,
+ "DELETE FROM peerstoredata"
+ " WHERE expiry < ?",
+ &plugin->expire_peerstoredata);
+ sql_prepare (plugin->dbh,
+ "DELETE FROM peerstoredata"
+ " WHERE sub_system = ?"
+ " AND peer_id = ?" " AND key = ?",
+ &plugin->delete_peerstoredata);
return GNUNET_OK;
}
+
/**
* Shutdown database connection and associate data
* structures.
{
int result;
sqlite3_stmt *stmt;
- while (NULL != (stmt = sqlite3_next_stmt (plugin->dbh, NULL)))
+
+ while (NULL != (stmt = sqlite3_next_stmt (plugin->dbh,
+ NULL)))
{
result = sqlite3_finalize (stmt);
if (SQLITE_OK != result)
LOG (GNUNET_ERROR_TYPE_WARNING,
- "Failed to close statement %p: %d\n", stmt, result);
+ "Failed to close statement %p: %d\n",
+ stmt,
+ result);
}
if (SQLITE_OK != sqlite3_close (plugin->dbh))
- LOG_SQLITE (plugin, GNUNET_ERROR_TYPE_ERROR, "sqlite3_close");
-
+ LOG_SQLITE (plugin,
+ GNUNET_ERROR_TYPE_ERROR,
+ "sqlite3_close");
GNUNET_free_non_null (plugin->fn);
}
+
/**
* Entry point for the plugin.
*
if (NULL != plugin.cfg)
return NULL; /* can only initialize once! */
- memset (&plugin, 0, sizeof (struct Plugin));
+ memset (&plugin,
+ 0,
+ sizeof (struct Plugin));
plugin.cfg = cfg;
if (GNUNET_OK != database_setup (&plugin))
{
api->cls = &plugin;
api->store_record = &peerstore_sqlite_store_record;
api->iterate_records = &peerstore_sqlite_iterate_records;
- LOG(GNUNET_ERROR_TYPE_DEBUG, "Sqlite plugin is running\n");
+ api->expire_records = &peerstore_sqlite_expire_records;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Sqlite plugin is running\n");
return api;
}
+
/**
* Exit point from the plugin.
*
database_shutdown (plugin);
plugin->cfg = NULL;
GNUNET_free (api);
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Sqlite plugin is finished\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Sqlite plugin is finished\n");
return NULL;
-
}
/* end of plugin_peerstore_sqlite.c */
projects / oweals / gnunet.git / blobdiff