int null_init(HNDLE hkey, void **pinfo)
{
HNDLE hDB, hkeybd;
INT size, status;
NULL_INFO *info;
/* allocate info structure */
info = calloc(1, sizeof(NULL_INFO));
*pinfo = info;
cm_get_experiment_database(&hDB, NULL);
/* create NULL settings record */
status = db_create_record(hDB, hkey, "BD", NULL_SETTINGS_STR);
if (status != DB_SUCCESS)
return FE_ERR_ODB;
db_find_key(hDB, hkey, "BD", &hkeybd);
size = sizeof(info->settings);
db_get_record(hDB, hkeybd, &info->settings, &size, 0);
/* open port */
info->fd = null_open(info->settings.device);
if (info->fd < 0)
return FE_ERR_HW;
return SUCCESS;
}
struct db_conn *db_open(enum backend_type type, const char *name, int flags)
{
switch (type) {
case BE_QDBM:
return qdbm_open(name, flags);
case BE_BDB:
return bdb_open(name, flags);
case BE_TC:
return tc_open(name, flags);
case BE_TDB:
return xtdb_open(name, flags);
case BE_LEVELDB:
return xleveldb_open(name, flags);
case BE_NULL:
return null_open(name, flags);
default:
return NULL;
}
}
