Computer-readable medium storing wrapper program and integrated circuit apparatus

A non-transitory computer-readable medium storing a wrapper program that causes a computer to execute a process, the process comprising:

• processing a porting source application program interface (API), in order to allow an application program, having a code to call up the porting source API of a porting source operating system (OS), to operate on a porting destination OS which is different from the porting source OS;
• wherein the processing includes,
• referring to wrapper management information including status values which the porting destination OS updates as management information when the porting source API which refers to the status value is called up from the application program, in which the status values in the wrapper management information are values corrected so as to conform to the protocol of status values of the porting source OS;
• obtaining the status value being conformed to the protocol of status values of the porting source OS which the porting source API refers to;
• and
• outputting to the application program, without calling up the porting destination API corresponding to the porting source API.

An integrated circuit apparatus comprising:

• a processor;
• and
• a memory, wherein
• the memory has:
• a porting destination operating system (OS), which is an OS operating an application program having a code to call up a porting source application program interface (API) of a porting source OS, and is different from the porting source OS;
• a porting source error condition data base which includes error condition information of the porting source API and error value of the porting source OS, the error value corresponding to the error condition information;
• and
• a wrapper program that causes the processor to execute converting the porting source API to a porting destination API of the porting destination OS, in order to allow the application program to operate on the porting destination OS, when the porting source API is called up from the application program, the converting comprising,
• determining whether the porting source API matches the error condition information of the porting source API by referring to the porting source error condition data base;
• outputting the error value of the porting source OS to the application program without calling up the porting destination API corresponding to the porting source API, the error value corresponding to the error condition information which matched in the determining, when the error condition information is matched;
• and
• calling up the porting destination API corresponding to the porting source API when the error condition information is not matched, so that the porting destination OS executes the porting destination API.