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 2, or (at your
+ by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
*/
#include "platform.h"
-#include "gnunet_statistics_service.h"
#include "plugin_datastore.h"
#include <sqlite3.h>
-#define DEBUG_SQLITE GNUNET_YES
+#define DEBUG_SQLITE GNUNET_NO
-/**
- * After how many payload-changing operations
- * do we sync our statistics?
- */
-#define MAX_STAT_SYNC_LAG 50
-
-#define QUOTA_STAT_NAME gettext_noop ("file-sharing datastore utilization (in bytes)")
/**
* Log an error message at log-level 'level' that indicates
* a failure of the command 'cmd' on file 'filename'
* with the message given by strerror(errno).
*/
-#define LOG_SQLITE(db, msg, level, cmd) do { GNUNET_log_from (level, "sqlite", _("`%s' failed at %s:%d with error: %s\n"), cmd, __FILE__, __LINE__, sqlite3_errmsg(db->dbh)); if (msg != NULL) GNUNET_asprintf(msg, _("`%s' failed with error: %s"), cmd, sqlite3_errmsg(db->dbh)); } while(0)
+#define LOG_SQLITE(db, msg, level, cmd) do { GNUNET_log_from (level, "sqlite", _("`%s' failed at %s:%d with error: %s\n"), cmd, __FILE__, __LINE__, sqlite3_errmsg(db->dbh)); if (msg != NULL) GNUNET_asprintf(msg, _("`%s' failed at %s:%u with error: %s"), cmd, __FILE__, __LINE__, sqlite3_errmsg(db->dbh)); } while(0)
#define SELECT_IT_LOW_PRIORITY_1 \
"SELECT size,type,prio,anonLevel,expire,hash,value,_ROWID_ FROM gn080 WHERE (prio = ? AND hash > ?) "\
#define BUSY_TIMEOUT_MS 250
+
/**
* Context for all functions in this plugin.
*/
sqlite3_stmt *insertContent;
/**
- * Handle to the statistics service.
- */
- struct GNUNET_STATISTICS_Handle *statistics;
-
- /**
- * How much data are we currently storing
- * in the database?
+ * Closure of the 'next_task' (must be freed if 'next_task' is cancelled).
*/
- unsigned long long payload;
+ struct NextContext *next_task_nc;
/**
- * Number of updates that were made to the
- * payload value since we last synchronized
- * it with the statistics service.
+ * Pending task with scheduler for running the next request.
*/
- unsigned int lastSync;
+ GNUNET_SCHEDULER_TaskIdentifier next_task;
/**
* Should the database be dropped on shutdown?
*/
int drop_on_shutdown;
+
};
sqlite3_stmt ** ppStmt)
{
char *dummy;
- return sqlite3_prepare (dbh,
- zSql,
- strlen (zSql), ppStmt, (const char **) &dummy);
+ return sqlite3_prepare_v2 (dbh,
+ zSql,
+ strlen (zSql), ppStmt, (const char **) &dummy);
}
"datastore-sqlite");
return GNUNET_SYSERR;
}
- if (GNUNET_OK != GNUNET_DISK_directory_create_for_file (afsdir))
+ if (GNUNET_OK != GNUNET_DISK_file_test (afsdir))
{
- GNUNET_break (0);
- GNUNET_free (afsdir);
- return GNUNET_SYSERR;
+ if (GNUNET_OK != GNUNET_DISK_directory_create_for_file (afsdir))
+ {
+ GNUNET_break (0);
+ GNUNET_free (afsdir);
+ return GNUNET_SYSERR;
+ }
+ /* database is new or got deleted, reset payload to zero! */
+ plugin->env->duc (plugin->env->cls, 0);
}
plugin->fn = GNUNET_STRINGS_to_utf8 (afsdir, strlen (afsdir),
#ifdef ENABLE_NLS
CHECK (SQLITE_OK ==
sqlite3_exec (plugin->dbh,
"PRAGMA synchronous=OFF", NULL, NULL, ENULL));
+ CHECK (SQLITE_OK ==
+ sqlite3_exec (plugin->dbh,
+ "PRAGMA auto_vacuum=INCREMENTAL", NULL, NULL, ENULL));
CHECK (SQLITE_OK ==
sqlite3_exec (plugin->dbh,
"PRAGMA count_changes=OFF", NULL, NULL, ENULL));
CHECK (SQLITE_OK ==
- sqlite3_exec (plugin->dbh, "PRAGMA page_size=4092", NULL, NULL, ENULL));
+ sqlite3_exec (plugin->dbh,
+ "PRAGMA page_size=4092", NULL, NULL, ENULL));
CHECK (SQLITE_OK == sqlite3_busy_timeout (plugin->dbh, BUSY_TIMEOUT_MS));
}
-/**
- * Synchronize our utilization statistics with the
- * statistics service.
- * @param plugin the plugin context (state for this module)
- */
-static void
-sync_stats (struct Plugin *plugin)
-{
- GNUNET_STATISTICS_set (plugin->statistics,
- QUOTA_STAT_NAME,
- plugin->payload,
- GNUNET_YES);
- plugin->lastSync = 0;
-}
-
-
/**
* Shutdown database connection and associate data
* structures.
static void
database_shutdown (struct Plugin *plugin)
{
- if (plugin->lastSync > 0)
- sync_stats (plugin);
if (plugin->updPrio != NULL)
sqlite3_finalize (plugin->updPrio);
if (plugin->insertContent != NULL)
}
-/**
- * Get an estimate of how much space the database is
- * currently using.
- *
- * @param cls our plugin context
- * @return number of bytes used on disk
- */
-static unsigned long long sqlite_plugin_get_size (void *cls)
-{
- struct Plugin *plugin = cls;
- return plugin->payload;
-}
-
-
/**
* Delete the database entry with the given
* row identifier.
sqlite_next_request_cont (void *cls,
const struct GNUNET_SCHEDULER_TaskContext *tc)
{
- struct NextContext * nc= cls;
+ struct NextContext * nc = cls;
struct Plugin *plugin;
unsigned long long rowid;
sqlite3_stmt *stmtd;
struct GNUNET_TIME_Absolute expiration;
const GNUNET_HashCode *key;
const void *data;
-
-
+
plugin = nc->plugin;
+ plugin->next_task = GNUNET_SCHEDULER_NO_TASK;
+ plugin->next_task_nc = NULL;
if ( (GNUNET_YES == nc->end_it) ||
(GNUNET_OK != (nc->prep(nc->prep_cls,
nc))) )
if ( (ret == GNUNET_NO) &&
(GNUNET_OK == delete_by_rowid (plugin, rowid)) )
{
- plugin->payload -= (size + GNUNET_DATASTORE_ENTRY_OVERHEAD);
- plugin->lastSync++;
+ plugin->env->duc (plugin->env->cls,
+ - (size + GNUNET_DATASTORE_ENTRY_OVERHEAD));
#if DEBUG_SQLITE
- if (ret == GNUNET_NO)
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG,
- "sqlite",
- "Removed entry %llu (%u bytes), new payload is %llu\n",
- (unsigned long long) rowid,
- size + GNUNET_DATASTORE_ENTRY_OVERHEAD,
- (unsigned long long) plugin->payload);
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG,
+ "sqlite",
+ "Removed entry %llu (%u bytes)\n",
+ (unsigned long long) rowid,
+ size + GNUNET_DATASTORE_ENTRY_OVERHEAD);
#endif
- if (plugin->lastSync >= MAX_STAT_SYNC_LAG)
- sync_stats (plugin);
}
}
if (GNUNET_YES == end_it)
nc->end_it = GNUNET_YES;
- GNUNET_SCHEDULER_add_continuation (nc->plugin->env->sched,
- &sqlite_next_request_cont,
- nc,
- GNUNET_SCHEDULER_REASON_PREREQ_DONE);
+ nc->plugin->next_task_nc = nc;
+ nc->plugin->next_task = GNUNET_SCHEDULER_add_now (nc->plugin->env->sched,
+ &sqlite_next_request_cont,
+ nc);
}
const GNUNET_HashCode * key,
uint32_t size,
const void *data,
- uint32_t type,
+ enum GNUNET_BLOCK_Type type,
uint32_t priority,
uint32_t anonymity,
struct GNUNET_TIME_Absolute expiration,
(SQLITE_OK != sqlite3_bind_int (stmt, 2, type)) ||
(SQLITE_OK != sqlite3_bind_int (stmt, 3, priority)) ||
(SQLITE_OK != sqlite3_bind_int (stmt, 4, anonymity)) ||
- (SQLITE_OK != sqlite3_bind_int64 (stmt, 5, (sqlite3_int64) expiration.value)) ||
+ (SQLITE_OK != sqlite3_bind_int64 (stmt, 5, expiration.value)) ||
(SQLITE_OK !=
sqlite3_bind_blob (stmt, 6, key, sizeof (GNUNET_HashCode),
SQLITE_TRANSIENT)) ||
return GNUNET_SYSERR;
}
n = sqlite3_step (stmt);
- if (n != SQLITE_DONE)
+ if (n != SQLITE_DONE)
{
if (n == SQLITE_BUSY)
{
LOG_SQLITE (plugin, msg,
GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK, "sqlite3_step");
sqlite3_reset (stmt);
+ database_shutdown (plugin);
+ database_setup (plugin->env->cfg,
+ plugin);
return GNUNET_SYSERR;
}
if (SQLITE_OK != sqlite3_reset (stmt))
LOG_SQLITE (plugin, NULL,
GNUNET_ERROR_TYPE_ERROR |
GNUNET_ERROR_TYPE_BULK, "sqlite3_reset");
- plugin->lastSync++;
- plugin->payload += size + GNUNET_DATASTORE_ENTRY_OVERHEAD;
+ plugin->env->duc (plugin->env->cls,
+ size + GNUNET_DATASTORE_ENTRY_OVERHEAD);
#if DEBUG_SQLITE
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG,
"sqlite",
- "Stored new entry (%u bytes), new payload is %llu\n",
- size + GNUNET_DATASTORE_ENTRY_OVERHEAD,
- (unsigned long long) plugin->payload);
+ "Stored new entry (%u bytes)\n",
+ size + GNUNET_DATASTORE_ENTRY_OVERHEAD);
#endif
- if (plugin->lastSync >= MAX_STAT_SYNC_LAG)
- sync_stats (plugin);
return GNUNET_OK;
}
/**
* Desired type for blocks returned by this iterator.
*/
- uint32_t type;
+ enum GNUNET_BLOCK_Type type;
};
*/
static void
basic_iter (struct Plugin *plugin,
- uint32_t type,
+ enum GNUNET_BLOCK_Type type,
int is_asc,
int is_prio,
int is_migr,
{
LOG_SQLITE (plugin, NULL,
GNUNET_ERROR_TYPE_ERROR |
- GNUNET_ERROR_TYPE_BULK, "sqlite3_prepare");
+ GNUNET_ERROR_TYPE_BULK, "sqlite3_prepare_v2");
iter (iter_cls, NULL, NULL, 0, NULL, 0, 0, 0, GNUNET_TIME_UNIT_ZERO_ABS, 0);
return;
}
{
LOG_SQLITE (plugin, NULL,
GNUNET_ERROR_TYPE_ERROR |
- GNUNET_ERROR_TYPE_BULK, "sqlite3_prepare");
+ GNUNET_ERROR_TYPE_BULK, "sqlite3_prepare_v2");
sqlite3_finalize (stmt_1);
iter (iter_cls, NULL, NULL, 0, NULL, 0, 0, 0, GNUNET_TIME_UNIT_ZERO_ABS, 0);
return;
*/
static void
sqlite_plugin_iter_low_priority (void *cls,
- uint32_t type,
+ enum GNUNET_BLOCK_Type type,
PluginIterator iter,
void *iter_cls)
{
*/
static void
sqlite_plugin_iter_zero_anonymity (void *cls,
- uint32_t type,
+ enum GNUNET_BLOCK_Type type,
PluginIterator iter,
void *iter_cls)
{
*/
static void
sqlite_plugin_iter_ascending_expiration (void *cls,
- uint32_t type,
+ enum GNUNET_BLOCK_Type type,
PluginIterator iter,
void *iter_cls)
{
*/
static void
sqlite_plugin_iter_migration_order (void *cls,
- uint32_t type,
+ enum GNUNET_BLOCK_Type type,
PluginIterator iter,
void *iter_cls)
{
*/
static void
sqlite_plugin_iter_all_now (void *cls,
- uint32_t type,
+ enum GNUNET_BLOCK_Type type,
PluginIterator iter,
void *iter_cls)
{
{
LOG_SQLITE (plugin, NULL,
GNUNET_ERROR_TYPE_ERROR |
- GNUNET_ERROR_TYPE_BULK, "sqlite3_prepare");
+ GNUNET_ERROR_TYPE_BULK, "sqlite3_prepare_v2");
iter (iter_cls, NULL, NULL, 0, NULL, 0, 0, 0, GNUNET_TIME_UNIT_ZERO_ABS, 0);
return;
}
sqlite_plugin_get (void *cls,
const GNUNET_HashCode * key,
const GNUNET_HashCode * vhash,
- uint32_t type,
+ enum GNUNET_BLOCK_Type type,
PluginIterator iter, void *iter_cls)
{
struct Plugin *plugin = cls;
sqlite_plugin_iter_low_priority (cls, type, iter, iter_cls);
return;
}
- GNUNET_snprintf (scratch, 256,
+ GNUNET_snprintf (scratch, sizeof (scratch),
"SELECT count(*) FROM gn080 WHERE hash=:1%s%s",
vhash == NULL ? "" : " AND vhash=:2",
type == 0 ? "" : (vhash ==
return;
}
- GNUNET_snprintf (scratch, 256,
+ GNUNET_snprintf (scratch, sizeof (scratch),
"SELECT size, type, prio, anonLevel, expire, hash, value, _ROWID_ "
"FROM gn080 WHERE hash=:1%s%s AND _ROWID_ >= :%d "
"ORDER BY _ROWID_ ASC LIMIT 1 OFFSET :d",
}
-/**
- * Callback function to process statistic values.
- *
- * @param cls closure
- * @param subsystem name of subsystem that created the statistic
- * @param name the name of the datum
- * @param value the current value
- * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
- * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
- */
-static int
-process_stat_in (void *cls,
- const char *subsystem,
- const char *name,
- uint64_t value,
- int is_persistent)
+static unsigned long long
+sqlite_plugin_get_size (void *cls)
{
struct Plugin *plugin = cls;
- plugin->payload += value;
-#if DEBUG_SQLITE
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG,
- "sqlite",
- "Notification from statistics about existing payload (%llu), new payload is %llu\n",
- value,
- (unsigned long long) plugin->payload);
-#endif
- return GNUNET_OK;
+ sqlite3_stmt *stmt;
+ uint64_t pages;
+ uint64_t page_size;
+
+ if (SQLITE_VERSION_NUMBER < 3006000)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_WARNING,
+ "datastore-sqlite",
+ _("sqlite version to old to determine size, assuming zero\n"));
+ return 0;
+ }
+ CHECK (SQLITE_OK ==
+ sqlite3_exec (plugin->dbh,
+ "VACUUM", NULL, NULL, ENULL));
+ CHECK (SQLITE_OK ==
+ sqlite3_exec (plugin->dbh,
+ "PRAGMA auto_vacuum=INCREMENTAL", NULL, NULL, ENULL));
+ CHECK (SQLITE_OK ==
+ sq_prepare (plugin->dbh,
+ "PRAGMA page_count",
+ &stmt));
+ if (SQLITE_ROW ==
+ sqlite3_step (stmt))
+ pages = sqlite3_column_int64 (stmt, 0);
+ else
+ pages = 0;
+ sqlite3_finalize (stmt);
+ CHECK (SQLITE_OK ==
+ sq_prepare (plugin->dbh,
+ "PRAGMA page_size",
+ &stmt));
+ CHECK (SQLITE_ROW ==
+ sqlite3_step (stmt));
+ page_size = sqlite3_column_int64 (stmt, 0);
+ sqlite3_finalize (stmt);
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ _("Using sqlite page utilization to estimate payload (%llu pages of size %llu bytes)\n"),
+ (unsigned long long) pages,
+ (unsigned long long) page_size);
+ return pages * page_size;
}
return NULL; /* can only initialize once! */
memset (&plugin, 0, sizeof(struct Plugin));
plugin.env = env;
- plugin.statistics = GNUNET_STATISTICS_create (env->sched,
- "sqlite",
- env->cfg);
- GNUNET_STATISTICS_get (plugin.statistics,
- "sqlite",
- QUOTA_STAT_NAME,
- GNUNET_TIME_UNIT_MINUTES,
- NULL,
- &process_stat_in,
- &plugin);
if (GNUNET_OK !=
database_setup (env->cfg, &plugin))
{
struct GNUNET_DATASTORE_PluginFunctions *api = cls;
struct Plugin *plugin = api->cls;
+ if (plugin->next_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (plugin->env->sched,
+ plugin->next_task);
+ plugin->next_task = GNUNET_SCHEDULER_NO_TASK;
+ plugin->next_task_nc->prep (plugin->next_task_nc->prep_cls, NULL);
+ GNUNET_free (plugin->next_task_nc);
+ plugin->next_task_nc = NULL;
+ }
fn = NULL;
if (plugin->drop_on_shutdown)
fn = GNUNET_strdup (plugin->fn);
database_shutdown (plugin);
- GNUNET_STATISTICS_destroy (plugin->statistics,
- GNUNET_NO);
plugin->env = NULL;
- plugin->payload = 0;
GNUNET_free (api);
if (fn != NULL)
{
projects / oweals / gnunet.git / blobdiff