When processing is normal as for this function, it is returned more than 1. When processing is abnormal, it is returned less than 0. The meaning of the return value is as follows. In the case of 1, there is a problem in Para meta appointed in the case of 0 meaning that there were not data to handle in the case of 2 meaning that processing was performed normally In the case of -1, there is an error in a set point of hoge.ini of the preference. In the case of -2, an unexpected error occurred.
I call this function, and less than 0 please write in the reason at system log when it was returned.
