/*
This file is part of GNUnet
- (C) 2009, 2010, 2011 Christian Grothoff (and other contributing authors)
+ (C) 2009, 2010, 2011, 2012 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
#include "platform.h"
#include "gnunet_datastore_plugin.h"
+#include "gnunet_postgres_lib.h"
#include <postgresql/libpq-fe.h>
-#define DEBUG_POSTGRES GNUNET_NO
/**
* After how many ms "busy" should a DB operation fail for good?
};
-/**
- * Check if the result obtained from Postgres has
- * the desired status code. If not, log an error, clear the
- * result and return GNUNET_SYSERR.
- *
- * @param plugin global context
- * @param ret result to check
- * @param expected_status expected return value
- * @param command name of SQL command that was run
- * @param args arguments to SQL command
- * @param line line number for error reporting
- * @return GNUNET_OK if the result is acceptable
- */
-static int
-check_result (struct Plugin *plugin, PGresult * ret, int expected_status,
- const char *command, const char *args, int line)
-{
- if (ret == NULL)
- {
- GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "datastore-postgres",
- "Postgres failed to allocate result for `%s:%s' at %d\n",
- command, args, line);
- return GNUNET_SYSERR;
- }
- if (PQresultStatus (ret) != expected_status)
- {
- GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- "datastore-postgres",
- _("`%s:%s' failed at %s:%d with error: %s"), command, args,
- __FILE__, line, PQerrorMessage (plugin->dbh));
- PQclear (ret);
- return GNUNET_SYSERR;
- }
- return GNUNET_OK;
-}
-
-/**
- * Run simple SQL statement (without results).
- *
- * @param plugin global context
- * @param sql statement to run
- * @param line code line for error reporting
- */
-static int
-pq_exec (struct Plugin *plugin, const char *sql, int line)
-{
- PGresult *ret;
-
- ret = PQexec (plugin->dbh, sql);
- if (GNUNET_OK !=
- check_result (plugin, ret, PGRES_COMMAND_OK, "PQexec", sql, line))
- return GNUNET_SYSERR;
- PQclear (ret);
- return GNUNET_OK;
-}
-
-/**
- * Prepare SQL statement.
- *
- * @param plugin global context
- * @param name name for the prepared SQL statement
- * @param sql SQL code to prepare
- * @param nparams number of parameters in sql
- * @param line code line for error reporting
- * @return GNUNET_OK on success
- */
-static int
-pq_prepare (struct Plugin *plugin, const char *name, const char *sql,
- int nparams, int line)
-{
- PGresult *ret;
-
- ret = PQprepare (plugin->dbh, name, sql, nparams, NULL);
- if (GNUNET_OK !=
- check_result (plugin, ret, PGRES_COMMAND_OK, "PQprepare", sql, line))
- return GNUNET_SYSERR;
- PQclear (ret);
- return GNUNET_OK;
-}
-
/**
* @brief Get a database handle
*
static int
init_connection (struct Plugin *plugin)
{
- char *conninfo;
PGresult *ret;
- /* Open database and precompile statements */
- conninfo = NULL;
- (void) GNUNET_CONFIGURATION_get_value_string (plugin->env->cfg,
- "datastore-postgres", "CONFIG",
- &conninfo);
- plugin->dbh = PQconnectdb (conninfo == NULL ? "" : conninfo);
+ plugin->dbh = GNUNET_POSTGRES_connect (plugin->env->cfg, "datastore-postgres");
if (NULL == plugin->dbh)
- {
- /* FIXME: warn about out-of-memory? */
- GNUNET_free_non_null (conninfo);
- return GNUNET_SYSERR;
- }
- if (PQstatus (plugin->dbh) != CONNECTION_OK)
- {
- GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, "datastore-postgres",
- _
- ("Unable to initialize Postgres with configuration `%s': %s"),
- conninfo, PQerrorMessage (plugin->dbh));
- PQfinish (plugin->dbh);
- plugin->dbh = NULL;
- GNUNET_free_non_null (conninfo);
return GNUNET_SYSERR;
- }
- GNUNET_free_non_null (conninfo);
ret =
PQexec (plugin->dbh,
"CREATE TABLE gn090 (" " repl INTEGER NOT NULL DEFAULT 0,"
(ret,
PG_DIAG_SQLSTATE)))))
{
- (void) check_result (plugin, ret, PGRES_COMMAND_OK, "CREATE TABLE", "gn090",
- __LINE__);
+ (void) GNUNET_POSTGRES_check_result (plugin->dbh, ret, PGRES_COMMAND_OK, "CREATE TABLE", "gn090");
PQfinish (plugin->dbh);
plugin->dbh = NULL;
return GNUNET_SYSERR;
if (PQresultStatus (ret) == PGRES_COMMAND_OK)
{
if ((GNUNET_OK !=
- pq_exec (plugin, "CREATE INDEX idx_hash ON gn090 (hash)", __LINE__)) ||
+ GNUNET_POSTGRES_exec (plugin->dbh, "CREATE INDEX idx_hash ON gn090 (hash)")) ||
(GNUNET_OK !=
- pq_exec (plugin, "CREATE INDEX idx_hash_vhash ON gn090 (hash,vhash)",
- __LINE__)) ||
+ GNUNET_POSTGRES_exec (plugin->dbh, "CREATE INDEX idx_hash_vhash ON gn090 (hash,vhash)")) ||
(GNUNET_OK !=
- pq_exec (plugin, "CREATE INDEX idx_prio ON gn090 (prio)", __LINE__)) ||
+ GNUNET_POSTGRES_exec (plugin->dbh, "CREATE INDEX idx_prio ON gn090 (prio)")) ||
(GNUNET_OK !=
- pq_exec (plugin, "CREATE INDEX idx_expire ON gn090 (expire)",
- __LINE__)) ||
+ GNUNET_POSTGRES_exec (plugin->dbh, "CREATE INDEX idx_expire ON gn090 (expire)")) ||
(GNUNET_OK !=
- pq_exec (plugin,
- "CREATE INDEX idx_prio_anon ON gn090 (prio,anonLevel)",
- __LINE__)) ||
+ GNUNET_POSTGRES_exec (plugin->dbh,
+ "CREATE INDEX idx_prio_anon ON gn090 (prio,anonLevel)")) ||
(GNUNET_OK !=
- pq_exec (plugin,
- "CREATE INDEX idx_prio_hash_anon ON gn090 (prio,hash,anonLevel)",
- __LINE__)) ||
+ GNUNET_POSTGRES_exec (plugin->dbh,
+ "CREATE INDEX idx_prio_hash_anon ON gn090 (prio,hash,anonLevel)")) ||
(GNUNET_OK !=
- pq_exec (plugin, "CREATE INDEX idx_repl_rvalue ON gn090 (repl,rvalue)",
- __LINE__)) ||
+ GNUNET_POSTGRES_exec (plugin->dbh, "CREATE INDEX idx_repl_rvalue ON gn090 (repl,rvalue)")) ||
(GNUNET_OK !=
- pq_exec (plugin, "CREATE INDEX idx_expire_hash ON gn090 (expire,hash)",
- __LINE__)))
+ GNUNET_POSTGRES_exec (plugin->dbh, "CREATE INDEX idx_expire_hash ON gn090 (expire,hash)")))
{
PQclear (ret);
PQfinish (plugin->dbh);
PQexec (plugin->dbh,
"ALTER TABLE gn090 ALTER value SET STORAGE EXTERNAL");
if (GNUNET_OK !=
- check_result (plugin, ret, PGRES_COMMAND_OK, "ALTER TABLE", "gn090",
- __LINE__))
+ GNUNET_POSTGRES_check_result (plugin->dbh, ret, PGRES_COMMAND_OK, "ALTER TABLE", "gn090"))
{
PQfinish (plugin->dbh);
plugin->dbh = NULL;
PQclear (ret);
ret = PQexec (plugin->dbh, "ALTER TABLE gn090 ALTER hash SET STORAGE PLAIN");
if (GNUNET_OK !=
- check_result (plugin, ret, PGRES_COMMAND_OK, "ALTER TABLE", "gn090",
- __LINE__))
+ GNUNET_POSTGRES_check_result (plugin->dbh, ret, PGRES_COMMAND_OK, "ALTER TABLE", "gn090"))
{
PQfinish (plugin->dbh);
plugin->dbh = NULL;
PQclear (ret);
ret = PQexec (plugin->dbh, "ALTER TABLE gn090 ALTER vhash SET STORAGE PLAIN");
if (GNUNET_OK !=
- check_result (plugin, ret, PGRES_COMMAND_OK, "ALTER TABLE", "gn090",
- __LINE__))
+ GNUNET_POSTGRES_check_result (plugin->dbh, ret, PGRES_COMMAND_OK, "ALTER TABLE", "gn090"))
{
PQfinish (plugin->dbh);
plugin->dbh = NULL;
}
PQclear (ret);
if ((GNUNET_OK !=
- pq_prepare (plugin, "getvt",
+ GNUNET_POSTGRES_prepare (plugin->dbh, "getvt",
"SELECT type, prio, anonLevel, expire, hash, value, oid FROM gn090 "
"WHERE hash=$1 AND vhash=$2 AND type=$3 "
- "ORDER BY oid ASC LIMIT 1 OFFSET $4", 4, __LINE__)) ||
+ "ORDER BY oid ASC LIMIT 1 OFFSET $4", 4)) ||
(GNUNET_OK !=
- pq_prepare (plugin, "gett",
+ GNUNET_POSTGRES_prepare (plugin->dbh, "gett",
"SELECT type, prio, anonLevel, expire, hash, value, oid FROM gn090 "
"WHERE hash=$1 AND type=$2 "
- "ORDER BY oid ASC LIMIT 1 OFFSET $3", 3, __LINE__)) ||
+ "ORDER BY oid ASC LIMIT 1 OFFSET $3", 3)) ||
(GNUNET_OK !=
- pq_prepare (plugin, "getv",
+ GNUNET_POSTGRES_prepare (plugin->dbh, "getv",
"SELECT type, prio, anonLevel, expire, hash, value, oid FROM gn090 "
"WHERE hash=$1 AND vhash=$2 "
- "ORDER BY oid ASC LIMIT 1 OFFSET $3", 3, __LINE__)) ||
+ "ORDER BY oid ASC LIMIT 1 OFFSET $3", 3)) ||
(GNUNET_OK !=
- pq_prepare (plugin, "get",
+ GNUNET_POSTGRES_prepare (plugin->dbh, "get",
"SELECT type, prio, anonLevel, expire, hash, value, oid FROM gn090 "
- "WHERE hash=$1 " "ORDER BY oid ASC LIMIT 1 OFFSET $2", 2,
- __LINE__)) ||
+ "WHERE hash=$1 " "ORDER BY oid ASC LIMIT 1 OFFSET $2", 2)) ||
(GNUNET_OK !=
- pq_prepare (plugin, "put",
+ GNUNET_POSTGRES_prepare (plugin->dbh, "put",
"INSERT INTO gn090 (repl, type, prio, anonLevel, expire, rvalue, hash, vhash, value) "
- "VALUES ($1, $2, $3, $4, $5, RANDOM(), $6, $7, $8)", 9,
- __LINE__)) ||
+ "VALUES ($1, $2, $3, $4, $5, RANDOM(), $6, $7, $8)", 9)) ||
(GNUNET_OK !=
- pq_prepare (plugin, "update",
+ GNUNET_POSTGRES_prepare (plugin->dbh, "update",
"UPDATE gn090 SET prio = prio + $1, expire = CASE WHEN expire < $2 THEN $2 ELSE expire END "
- "WHERE oid = $3", 3, __LINE__)) ||
+ "WHERE oid = $3", 3)) ||
(GNUNET_OK !=
- pq_prepare (plugin, "decrepl",
+ GNUNET_POSTGRES_prepare (plugin->dbh, "decrepl",
"UPDATE gn090 SET repl = GREATEST (repl - 1, 0) "
- "WHERE oid = $1", 1, __LINE__)) ||
+ "WHERE oid = $1", 1)) ||
(GNUNET_OK !=
- pq_prepare (plugin, "select_non_anonymous",
+ GNUNET_POSTGRES_prepare (plugin->dbh, "select_non_anonymous",
"SELECT type, prio, anonLevel, expire, hash, value, oid FROM gn090 "
"WHERE anonLevel = 0 AND type = $1 ORDER BY oid DESC LIMIT 1 OFFSET $2",
- 1, __LINE__)) ||
+ 1)) ||
(GNUNET_OK !=
- pq_prepare (plugin, "select_expiration_order",
+ GNUNET_POSTGRES_prepare (plugin->dbh, "select_expiration_order",
"(SELECT type, prio, anonLevel, expire, hash, value, oid FROM gn090 "
"WHERE expire < $1 ORDER BY prio ASC LIMIT 1) " "UNION "
"(SELECT type, prio, anonLevel, expire, hash, value, oid FROM gn090 "
"ORDER BY prio ASC LIMIT 1) " "ORDER BY expire ASC LIMIT 1",
- 1, __LINE__)) ||
+ 1)) ||
(GNUNET_OK !=
- pq_prepare (plugin, "select_replication_order",
+ GNUNET_POSTGRES_prepare (plugin->dbh, "select_replication_order",
"SELECT type, prio, anonLevel, expire, hash, value, oid FROM gn090 "
- "ORDER BY repl DESC,RANDOM() LIMIT 1", 0, __LINE__)) ||
+ "ORDER BY repl DESC,RANDOM() LIMIT 1", 0)) ||
+ (GNUNET_OK !=
+ GNUNET_POSTGRES_prepare (plugin->dbh, "delrow", "DELETE FROM gn090 " "WHERE oid=$1", 1)) ||
(GNUNET_OK !=
- pq_prepare (plugin, "delrow", "DELETE FROM gn090 " "WHERE oid=$1", 1,
- __LINE__)))
+ GNUNET_POSTGRES_prepare (plugin->dbh, "get_keys", "SELECT hash FROM gn090", 0)))
{
PQfinish (plugin->dbh);
plugin->dbh = NULL;
}
-/**
- * Delete the row identified by the given rowid (qid
- * in postgres).
- *
- * @param plugin global context
- * @param rowid which row to delete
- * @return GNUNET_OK on success
- */
-static int
-delete_by_rowid (struct Plugin *plugin, unsigned int rowid)
-{
- uint32_t browid;
- const char *paramValues[] = { (const char *) &browid };
- int paramLengths[] = { sizeof (browid) };
- const int paramFormats[] = { 1 };
- PGresult *ret;
-
- browid = htonl (rowid);
- ret =
- PQexecPrepared (plugin->dbh, "delrow", 1, paramValues, paramLengths,
- paramFormats, 1);
- if (GNUNET_OK !=
- check_result (plugin, ret, PGRES_COMMAND_OK, "PQexecPrepared", "delrow",
- __LINE__))
- {
- return GNUNET_SYSERR;
- }
- PQclear (ret);
- return GNUNET_OK;
-}
-
-
/**
* Get an estimate of how much space the database is
* currently using.
"SELECT SUM(LENGTH(value))+256*COUNT(*) FROM gn090", 0,
NULL, NULL, NULL, NULL, 1);
if (GNUNET_OK !=
- check_result (plugin, ret, PGRES_TUPLES_OK, "PQexecParams", "get_size",
- __LINE__))
+ GNUNET_POSTGRES_check_result (plugin->dbh, ret, PGRES_TUPLES_OK, "PQexecParams", "get_size"))
{
return 0;
}
- if ((PQntuples (ret) != 1) || (PQnfields (ret) != 1) ||
- (PQgetlength (ret, 0, 0) != sizeof (unsigned long long)))
+ if ((PQntuples (ret) != 1) || (PQnfields (ret) != 1) )
{
GNUNET_break (0);
PQclear (ret);
return 0;
}
+ if (PQgetlength (ret, 0, 0) != sizeof (unsigned long long))
+ {
+ GNUNET_break (0 == PQgetlength (ret, 0, 0));
+ PQclear (ret);
+ return 0;
+ }
total = GNUNET_ntohll (*(const unsigned long long *) PQgetvalue (ret, 0, 0));
PQclear (ret);
return total;
/**
* Store an item in the datastore.
*
- * @param cls closure
+ * @param cls closure with the 'struct Plugin'
* @param key key for the item
* @param size number of bytes in data
* @param data content stored
* @return GNUNET_OK on success
*/
static int
-postgres_plugin_put (void *cls, const GNUNET_HashCode * key, uint32_t size,
+postgres_plugin_put (void *cls, const struct GNUNET_HashCode * key, uint32_t size,
const void *data, enum GNUNET_BLOCK_Type type,
uint32_t priority, uint32_t anonymity,
uint32_t replication,
struct GNUNET_TIME_Absolute expiration, char **msg)
{
struct Plugin *plugin = cls;
- GNUNET_HashCode vhash;
+ struct GNUNET_HashCode vhash;
PGresult *ret;
uint32_t btype = htonl (type);
uint32_t bprio = htonl (priority);
sizeof (bprio),
sizeof (banon),
sizeof (bexpi),
- sizeof (GNUNET_HashCode),
- sizeof (GNUNET_HashCode),
+ sizeof (struct GNUNET_HashCode),
+ sizeof (struct GNUNET_HashCode),
size
};
const int paramFormats[] = { 1, 1, 1, 1, 1, 1, 1, 1 };
PQexecPrepared (plugin->dbh, "put", 8, paramValues, paramLengths,
paramFormats, 1);
if (GNUNET_OK !=
- check_result (plugin, ret, PGRES_COMMAND_OK, "PQexecPrepared", "put",
- __LINE__))
+ GNUNET_POSTGRES_check_result (plugin->dbh, ret, PGRES_COMMAND_OK, "PQexecPrepared", "put"))
return GNUNET_SYSERR;
PQclear (ret);
plugin->env->duc (plugin->env->cls, size + GNUNET_DATASTORE_ENTRY_OVERHEAD);
-#if DEBUG_POSTGRES
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "datastore-postgres",
"Stored %u bytes in database\n", (unsigned int) size);
-#endif
return GNUNET_OK;
}
* @param proc function to call the value (once only).
* @param proc_cls closure for proc
* @param res result from exec
+ * @param filename filename for error messages
* @param line line number for error messages
*/
static void
process_result (struct Plugin *plugin, PluginDatumProcessor proc,
- void *proc_cls, PGresult * res, int line)
+ void *proc_cls, PGresult * res,
+ const char *filename, int line)
{
int iret;
enum GNUNET_BLOCK_Type type;
uint32_t size;
unsigned int rowid;
struct GNUNET_TIME_Absolute expiration_time;
- GNUNET_HashCode key;
+ struct GNUNET_HashCode key;
if (GNUNET_OK !=
- check_result (plugin, res, PGRES_TUPLES_OK, "PQexecPrepared", "select",
- line))
+ GNUNET_POSTGRES_check_result_ (plugin->dbh, res, PGRES_TUPLES_OK, "PQexecPrepared", "select",
+ filename, line))
{
-#if DEBUG_POSTGRES
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "datastore-postgres",
"Ending iteration (postgres error)\n");
-#endif
proc (proc_cls, NULL, 0, NULL, 0, 0, 0, GNUNET_TIME_UNIT_ZERO_ABS, 0);
return;
}
if (0 == PQntuples (res))
{
/* no result */
-#if DEBUG_POSTGRES
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "datastore-postgres",
"Ending iteration (no more results)\n");
-#endif
proc (proc_cls, NULL, 0, NULL, 0, 0, 0, GNUNET_TIME_UNIT_ZERO_ABS, 0);
PQclear (res);
return;
(sizeof (uint32_t) != PQfsize (res, 1)) ||
(sizeof (uint32_t) != PQfsize (res, 2)) ||
(sizeof (uint64_t) != PQfsize (res, 3)) ||
- (sizeof (GNUNET_HashCode) != PQgetlength (res, 0, 4)))
+ (sizeof (struct GNUNET_HashCode) != PQgetlength (res, 0, 4)))
{
GNUNET_break (0);
PQclear (res);
- delete_by_rowid (plugin, rowid);
+ GNUNET_POSTGRES_delete_by_rowid (plugin->dbh, "delrow", rowid);
proc (proc_cls, NULL, 0, NULL, 0, 0, 0, GNUNET_TIME_UNIT_ZERO_ABS, 0);
return;
}
anonymity = ntohl (*(uint32_t *) PQgetvalue (res, 0, 2));
expiration_time.abs_value =
GNUNET_ntohll (*(uint64_t *) PQgetvalue (res, 0, 3));
- memcpy (&key, PQgetvalue (res, 0, 4), sizeof (GNUNET_HashCode));
+ memcpy (&key, PQgetvalue (res, 0, 4), sizeof (struct GNUNET_HashCode));
size = PQgetlength (res, 0, 5);
-#if DEBUG_POSTGRES
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "datastore-postgres",
"Found result of size %u bytes and type %u in database\n",
(unsigned int) size, (unsigned int) type);
-#endif
iret =
proc (proc_cls, &key, size, PQgetvalue (res, 0, 5),
(enum GNUNET_BLOCK_Type) type, priority, anonymity, expiration_time,
PQclear (res);
if (iret == GNUNET_NO)
{
-#if DEBUG_POSTGRES
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Processor asked for item %u to be removed.\n", rowid);
-#endif
- if (GNUNET_OK == delete_by_rowid (plugin, rowid))
+ if (GNUNET_OK == GNUNET_POSTGRES_delete_by_rowid (plugin->dbh, "delrow", rowid))
{
-#if DEBUG_POSTGRES
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "datastore-postgres",
"Deleting %u bytes from database\n",
(unsigned int) size);
-#endif
plugin->env->duc (plugin->env->cls,
-(size + GNUNET_DATASTORE_ENTRY_OVERHEAD));
-#if DEBUG_POSTGRES
GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "datastore-postgres",
"Deleted %u bytes from database\n", (unsigned int) size);
-#endif
}
}
}
* Iterate over the results for a particular key
* in the datastore.
*
- * @param cls closure
+ * @param cls closure with the 'struct Plugin'
* @param offset offset of the result (modulo num-results);
* specific ordering does not matter for the offset
* @param key maybe NULL (to match all entries)
*/
static void
postgres_plugin_get_key (void *cls, uint64_t offset,
- const GNUNET_HashCode * key,
- const GNUNET_HashCode * vhash,
+ const struct GNUNET_HashCode * key,
+ const struct GNUNET_HashCode * vhash,
enum GNUNET_BLOCK_Type type, PluginDatumProcessor proc,
void *proc_cls)
{
GNUNET_assert (key != NULL);
paramValues[0] = (const char *) key;
- paramLengths[0] = sizeof (GNUNET_HashCode);
+ paramLengths[0] = sizeof (struct GNUNET_HashCode);
btype = htonl (type);
if (type != 0)
{
if (vhash != NULL)
{
paramValues[1] = (const char *) vhash;
- paramLengths[1] = sizeof (GNUNET_HashCode);
+ paramLengths[1] = sizeof (struct GNUNET_HashCode);
paramValues[2] = (const char *) &btype;
paramLengths[2] = sizeof (btype);
paramValues[3] = (const char *) &blimit_off;
if (vhash != NULL)
{
paramValues[1] = (const char *) vhash;
- paramLengths[1] = sizeof (GNUNET_HashCode);
+ paramLengths[1] = sizeof (struct GNUNET_HashCode);
paramValues[2] = (const char *) &blimit_off;
paramLengths[2] = sizeof (blimit_off);
nparams = 3;
}
}
if (GNUNET_OK !=
- check_result (plugin, ret, PGRES_TUPLES_OK, "PQexecParams", pname,
- __LINE__))
+ GNUNET_POSTGRES_check_result (plugin->dbh, ret, PGRES_TUPLES_OK, "PQexecParams", pname))
{
proc (proc_cls, NULL, 0, NULL, 0, 0, 0, GNUNET_TIME_UNIT_ZERO_ABS, 0);
return;
ret =
PQexecPrepared (plugin->dbh, pname, nparams, paramValues, paramLengths,
paramFormats, 1);
- process_result (plugin, proc, proc_cls, ret, __LINE__);
+ process_result (plugin, proc, proc_cls, ret, __FILE__, __LINE__);
}
ret =
PQexecPrepared (plugin->dbh, "select_non_anonymous", 2, paramValues,
paramLengths, paramFormats, 1);
- process_result (plugin, proc, proc_cls, ret, __LINE__);
+ process_result (plugin, proc, proc_cls, ret, __FILE__, __LINE__);
}
* Decrements the replication counter and calls the original
* iterator.
*
- * @param cls closure
+ * @param cls closure with the 'struct ReplCtx*'
* @param key key for the content
* @param size number of bytes in data
* @param data content stored
* GNUNET_NO to delete the item and continue (if supported)
*/
static int
-repl_proc (void *cls, const GNUNET_HashCode * key, uint32_t size,
+repl_proc (void *cls, const struct GNUNET_HashCode * key, uint32_t size,
const void *data, enum GNUNET_BLOCK_Type type, uint32_t priority,
uint32_t anonymity, struct GNUNET_TIME_Absolute expiration,
uint64_t uid)
PQexecPrepared (plugin->dbh, "decrepl", 1, paramValues, paramLengths,
paramFormats, 1);
if (GNUNET_OK !=
- check_result (plugin, qret, PGRES_COMMAND_OK, "PQexecPrepared",
- "decrepl", __LINE__))
+ GNUNET_POSTGRES_check_result (plugin->dbh, qret, PGRES_COMMAND_OK, "PQexecPrepared",
+ "decrepl"))
return GNUNET_SYSERR;
PQclear (qret);
}
* replication counter is decremented by one IF it was positive before.
* Call 'proc' with all values ZERO or NULL if the datastore is empty.
*
- * @param cls closure
+ * @param cls closure with the 'struct Plugin'
* @param proc function to call the value (once only).
* @param proc_cls closure for proc
*/
ret =
PQexecPrepared (plugin->dbh, "select_replication_order", 0, NULL, NULL,
NULL, 1);
- process_result (plugin, &repl_proc, &rc, ret, __LINE__);
+ process_result (plugin, &repl_proc, &rc, ret, __FILE__, __LINE__);
}
* Get a random item for expiration.
* Call 'proc' with all values ZERO or NULL if the datastore is empty.
*
- * @param cls closure
+ * @param cls closure with the 'struct Plugin'
* @param proc function to call the value (once only).
* @param proc_cls closure for proc
*/
ret =
PQexecPrepared (plugin->dbh, "select_expiration_order", 1, paramValues,
paramLengths, paramFormats, 1);
- process_result (plugin, proc, proc_cls, ret, __LINE__);
+ process_result (plugin, proc, proc_cls, ret, __FILE__, __LINE__);
}
PQexecPrepared (plugin->dbh, "update", 3, paramValues, paramLengths,
paramFormats, 1);
if (GNUNET_OK !=
- check_result (plugin, ret, PGRES_COMMAND_OK, "PQexecPrepared", "update",
- __LINE__))
+ GNUNET_POSTGRES_check_result (plugin->dbh, ret, PGRES_COMMAND_OK, "PQexecPrepared", "update"))
return GNUNET_SYSERR;
PQclear (ret);
return GNUNET_OK;
}
+
+/**
+ * Get all of the keys in the datastore.
+ *
+ * @param cls closure with the 'struct Plugin'
+ * @param proc function to call on each key
+ * @param proc_cls closure for proc
+ */
+static void
+postgres_plugin_get_keys (void *cls,
+ PluginKeyProcessor proc,
+ void *proc_cls)
+{
+ struct Plugin *plugin = cls;
+ int ret;
+ int i;
+ struct GNUNET_HashCode key;
+ PGresult * res;
+
+ res = PQexecPrepared (plugin->dbh, "get_keys", 0, NULL, NULL, NULL, 1);
+ ret = PQntuples (res);
+ for (i=0;i<ret;i++)
+ {
+ if (sizeof (struct GNUNET_HashCode) != PQgetlength (res, i, 0))
+ {
+ memcpy (&key, PQgetvalue (res, i, 0), sizeof (struct GNUNET_HashCode));
+ proc (proc_cls, &key, 1);
+ }
+ }
+ PQclear (res);
+}
+
+
+
/**
* Drop database.
+ *
+ * @param cls closure with the 'struct Plugin'
*/
static void
postgres_plugin_drop (void *cls)
{
struct Plugin *plugin = cls;
-
- pq_exec (plugin, "DROP TABLE gn090", __LINE__);
+
+ if (GNUNET_OK != GNUNET_POSTGRES_exec (plugin->dbh, "DROP TABLE gn090"))
+ GNUNET_log_from (GNUNET_ERROR_TYPE_WARNING, "postgres", _("Failed to drop table from database.\n"));
}
api->get_replication = &postgres_plugin_get_replication;
api->get_expiration = &postgres_plugin_get_expiration;
api->get_zero_anonymity = &postgres_plugin_get_zero_anonymity;
+ api->get_keys = &postgres_plugin_get_keys;
api->drop = &postgres_plugin_drop;
GNUNET_log_from (GNUNET_ERROR_TYPE_INFO, "datastore-postgres",
_("Postgres database running\n"));
projects / oweals / gnunet.git / blobdiff