BPX4FTV (fstatvfs) example

The following code obtains information about the file system containing the file identified by FILEDESC. For the callable service, see fstatvfs (BPX1FTV, BPX4FTV) — Get the file system status. For the data structure, see BPXYSSTF — Map response structure for file system status. AMODE 31 callers use BPX1FTV (fstatvfs) example.

                                              
       MVC   FILEDESC,..           File descriptor from open            
         SPACE ,                                                        
         CALL  BPX4FTV,              Get file system status            +
               (FILEDESC,            Input: File descriptor            +
               SSTFL,                Input: Length of BPXYSSTF         +
               SSTF,                 Buffer, BPXYSSTF                  +
               RETVAL,               Return value: -1 or length status +
               RETCODE,              Return code                       +
               RSNCODE),             Reason code                       +
               MF=(E,PLIST)          ----------------------------------