BPXYIOV — Map the I/O vector structure

BPXYIOV is used by readv(), writev(), sendmsg() and recvmsg(). AMODE 31 callers use BPXYIOV — Map the I/O vector structure.

                                                      
            SYSSTATE AMODE64=YES                                                
            BPXYIOV    ,                                                        
** BPXYIOV: Socket I/O Vectors                                                  
**  Used By: FCT OPN                                                            
IOV                  DSECT ,                                                    
IOV_ENTRY            DS    0F     Array Entry                                   
*  -------------------------- 64-bit format                                     
IOV_BASE             DS    D      64-bit Address of buffer                      
IOV_LEN              DS    D      64-bit length of buffer                       
*                                                                               
IOV#LENGTH          EQU   *-IOV_ENTRY Length of this structure                  
IOV_MAX             EQU   120     Maximum number of entries                     
** BPXYIOV End