I use Valgrind to check my programs and this last found leaks in libmysqlclient.so.
My code is simple:
char * requete = "SELECT * FROM "NOM_TABLE_1; MYSQL * mysql = mysql_init((MYSQL *)NULL); MYSQL_RES * mysql_resultat; MYSQL_ROW mysql_ligne; if(mysql == NULL) { return(-1); } if (!mysql_real_connect(mysql, ADRESSE_BDD, LOGIN_BDD, PASSWORD_BDD, NOM_BDD, 0, NULL, 0)) { fprintf(stderr, "Impossible de se connecter au serveur %s\n Error=%s\n", ADRESSE_BDD, mysql_error(mysql)); mysql_close(mysql); return(-1); } if(mysql_query(mysql, requete) != 0) { fprintf(stderr, "Impossible d'executer la requête %s\nError=%s\n", requete, mysql_error(mysql)); } else { mysql_resultat = mysql_store_result(mysql); if(mysql_resultat != NULL) { for(i = 0; i < mysql_resultat->row_count; i++) { mysql_ligne = mysql_fetch_row(mysql_resultat); // traitement } } mysql_free_result(mysql_resultat); } mysql_close(mysql);
Result of Valgrind: ==3691== 64 bytes in 1 blocks are still reachable in loss record 1 of 2
==3691== at 0x4015E310: malloc (vg_clientfuncs.c:103)
==3691== by 0x40254A2D: my_malloc (in /usr/lib/mysql/libmysqlclient.so.10.0.0)
==3691== by 0x4025A218: init_dynamic_array (in /usr/lib/mysql/libmysqlclient.so.10.0.0)
==3691== by 0x4025AE96: init_available_charsets (in /usr/lib/mysql/ libmysqlclient.so.10.0.0)
==3691== ==3691== 4088 bytes in 1 blocks are still reachable in loss record 2 of 2
==3691== at 0x4015E310: malloc (vg_clientfuncs.c:103)
==3691== by 0x4025A64C: my_once_alloc (in /usr/lib/mysql/libmysqlclient.so.10.0.0)
==3691== by 0x4025ACB0: read_charset_index (in /usr/lib/mysql/libmysqlclient.so.10.0.0)
==3691== by 0x4025AEAB: init_available_charsets (in /usr/lib/mysql/ libmysqlclient.so.10.0.0)
Is it a BUG or did I something?
Best regards,
-- Andreï V. FOMITCHEV [Quand faut-il arrêter l'informatique] Software R&D Engineer [Lorsque, dans un kilo, on trouve 1024 grammes] Odixion SAS, FRANCE
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