fsal_posixdb_status_t fsal_posixdb_deleteHandle(fsal_posixdb_conn * p_conn, /* IN */
posixfsal_handle_t *
p_parent_directory_handle /* IN */ )
{
/* char handleid_str[MAX_HANDLEIDSTR_SIZE];
char handlets_str[MAX_HANDLETSSTR_SIZE];
const char *paramValues[2]; */
int found;
result_handle_t res;
fsal_posixdb_status_t st;
char query[2048];
BeginTransaction(p_conn);
LogFullDebug(COMPONENT_FSAL, "Deleting %llu.%u\n", p_parent_directory_handle->data.id,
p_parent_directory_handle->data.ts);
snprintf(query, 2048,
"SELECT Handle.deviceid, Handle.inode, Handle.nlink, Handle.ctime, Handle.ftype "
"FROM Handle WHERE handleid=%llu AND handlets=%u FOR UPDATE",
p_parent_directory_handle->data.id, p_parent_directory_handle->data.ts);
st = db_exec_sql(p_conn, query, &res);
if(FSAL_POSIXDB_IS_ERROR(st))
goto rollback;
found = mysql_num_rows(res);
mysql_free_result(res);
if(found)
{
/* entry found */
st = fsal_posixdb_recursiveDelete(p_conn, p_parent_directory_handle->data.id,
p_parent_directory_handle->data.ts, FSAL_TYPE_DIR);
if(FSAL_POSIXDB_IS_ERROR(st))
goto rollback;
}
return EndTransaction(p_conn);
rollback:
RollbackTransaction(p_conn);
return st;
}
fsal_posixdb_status_t fsal_posixdb_internal_delete(fsal_posixdb_conn * p_conn, /* IN */
char *handleidparent_str, /* IN */
char *handletsparent_str, /* IN */
char *filename, /* IN */
fsal_posixdb_fileinfo_t *
p_object_info /* IN */ )
{
PGresult *p_res;
char handleid_str[MAX_HANDLEIDSTR_SIZE];
char handlets_str[MAX_HANDLETSSTR_SIZE];
fsal_posixdb_status_t st;
fsal_posixdb_fileinfo_t infodb;
const char *paramValues[3];
if(!p_conn || !handleidparent_str || !handletsparent_str || !filename)
ReturnCodeDB(ERR_FSAL_POSIXDB_FAULT, 0);
paramValues[0] = handleidparent_str;
paramValues[1] = handletsparent_str;
paramValues[2] = filename;
p_res = PQexecPrepared(p_conn, "lookupHandleByNameFU", 3, paramValues, NULL, NULL, 0);
CheckResult(p_res);
/* p_res contains : handleid, handlets, deviceId, inode, nlink, ctime, ftype */
/* no entry found */
if(PQntuples(p_res) != 1)
{
ReturnCodeDB(ERR_FSAL_POSIXDB_NOENT, 0);
}
strncpy(handleid_str, PQgetvalue(p_res, 0, 0), MAX_HANDLEIDSTR_SIZE);
strncpy(handlets_str, PQgetvalue(p_res, 0, 1), MAX_HANDLETSSTR_SIZE);
/* consistency check */
/* fill 'infodb' with information about the handle in the database */
posixdb_internal_fillFileinfoFromStrValues(&infodb, PQgetvalue(p_res, 0, 2), /* no need to compare inode & devid, they are the same */
PQgetvalue(p_res, 0, 3), PQgetvalue(p_res, 0, 4), /* nlink */
PQgetvalue(p_res, 0, 5), /* ctime */
PQgetvalue(p_res, 0, 6) /* ftype */
);
PQclear(p_res);
if(p_object_info && fsal_posixdb_consistency_check(&infodb, p_object_info))
{
/* not consistent, the bad handle have to be deleted */
LogCrit(COMPONENT_FSAL, "Consistency check failed while deleting a Path : Handle deleted");
infodb.ftype = FSAL_TYPE_DIR; /* considers that the entry is a directory in order to delete all its Parent entries and its Handle */
}
switch (infodb.ftype)
{
case FSAL_TYPE_DIR:
/* directory */
st = fsal_posixdb_recursiveDelete(p_conn, handleid_str, handlets_str, infodb.ftype);
break;
default:
st = fsal_posixdb_deleteParent(p_conn,
handleid_str,
handlets_str,
handleidparent_str,
handletsparent_str, filename, infodb.nlink);
}
return st;
}
fsal_posixdb_status_t fsal_posixdb_recursiveDelete(fsal_posixdb_conn * p_conn,
char *handleid_str, char *handlets_str,
fsal_nodetype_t ftype)
{
PGresult *p_res;
fsal_posixdb_status_t st;
fsal_nodetype_t ftype_tmp;
unsigned int i;
unsigned int i_max;
const char *paramValues[2];
/* Sanity check */
if(!p_conn || !handleid_str || !handlets_str)
{
ReturnCodeDB(ERR_FSAL_POSIXDB_FAULT, 0);
}
if(ftype == FSAL_TYPE_DIR)
{
/* We find all the children of the directory in order to delete them, and then we delete the current handle */
paramValues[0] = handleid_str;
paramValues[1] = handlets_str;
p_res = PQexecPrepared(p_conn, "lookupChildrenFU", 2, paramValues, NULL, NULL, 0);
CheckResult(p_res);
i_max = (unsigned int)PQntuples(p_res);
for(i = 0; i < i_max; i++)
{
ftype_tmp = (fsal_nodetype_t) atoi(PQgetvalue(p_res, i, 2));
if(ftype_tmp == FSAL_TYPE_DIR)
{
st = fsal_posixdb_recursiveDelete(p_conn, PQgetvalue(p_res, i, 0),
PQgetvalue(p_res, i, 1), ftype_tmp);
}
else
{
st = fsal_posixdb_deleteParent(p_conn, PQgetvalue(p_res, i, 0), /* handleidparent */
PQgetvalue(p_res, i, 1), /* handletsparent */
handleid_str, handlets_str, PQgetvalue(p_res, i, 3), /* filename */
atoi(PQgetvalue(p_res, i, 4)) /* nlink */
);
}
if(FSAL_POSIXDB_IS_ERROR(st))
{
PQclear(p_res);
return st;
}
}
PQclear(p_res);
}
/* Delete the Handle */
/* All Parent entries having this handle will be deleted thanks to foreign keys */
paramValues[0] = handleid_str;
paramValues[1] = handlets_str;
/* invalidate name cache */
fsal_posixdb_InvalidateCache();
p_res = PQexecPrepared(p_conn, "deleteHandle", 2, paramValues, NULL, NULL, 0);
CheckCommand(p_res);
ReturnCodeDB(ERR_FSAL_POSIXDB_NOERR, 0);
}
