BPX4PIP (pipe) example

The following code creates a pipe. For the callable service, see pipe (BPX1PIP, BPX4PIP) — Create an unnamed pipe. AMODE 31 callers use BPX1PIP (pipe) example.

                                              
         CALL  BPX4PIP,              Create a pipe                     +
               (READFD,              Output: Read file descriptor      +
               WRITEFD,              Output: Write file descriptor     +
               RETVAL,               Return value: 0 or -1             +
               RETCODE,              Return code                       +
               RSNCODE),             Reason code                       +
               MF=(E,PLIST)          ----------------------------------