BPXYPOLL — Map poll syscall parameters

This structure is passed to the poll syscall.
                                                      
            BPXYPOLL   ,                                                        
** BPXYPOLL: POLLFD structure for poll syscall                                  
**  Used By: POL                                                                
POLLFD               DSECT ,                                                    
POLLHFD              DS    FL4       File descriptor                            
                     ORG   POLLHFD                                              
POLLHMQID            DS    FL4       Message queue identifier                   
POLLEVENTS           DS    0XL2      Events                                     
                     DC    XL1'0'    Reserved                                   
                     DS    XL1       POLLEVENTS+1                               
POLLEPRI             EQU   X'10'     High-pri data may be recv'd                
POLLEWRBAND          EQU   X'08'     Priority data may be written               
POLLEWRNORM          EQU   X'04'     Data on band 0 may be written.             
POLLEOUT             EQU   X'04'     Same as WrNorm                             
POLLEIN              EQU   X'03'     Same as RdNorm                             
POLLERDBAND          EQU   X'02'     Non-0 band data may be read                
POLLERDNORM          EQU   X'01'     Data on band 0 may be read.                
POLLREVENTS          DS    0XL2      Returned events                            
                     DS    XL1       Reserved                                   
                     DS    XL1       POLLREVENTS+1                              
POLLRNVAL            EQU   X'80'     Invalid FD member.(Revent Only)            
POLLRHUP             EQU   X'40'     Hangup occurred (Revent Only)              
POLLRERR             EQU   X'20'     Error occurred. (Revent Only)              
POLLRPRI             EQU   X'10'     High-pri data may be recv'd                
POLLRWRBAND          EQU   X'08'     Priority data may be written               
POLLRWRNORM          EQU   X'04'     Data on band 0 may be written.             
POLLROUT             EQU   X'04'     Same as WrNorm                             
POLLRIN              EQU   X'03'     Same as RdNorm                             
POLLRRDBAND          EQU   X'02'     Non-0 band data may be read                
POLLRRDNORM          EQU   X'01'     Data on band 0 may be read.                
POLLFD#LENGTH        EQU   *-POLLFD                                             
*                                                                               
#POLLEMASK           EQU   X'001F'                                              
#POLLRDMASK          EQU   X'00130000'  All Read bits                           
#POLLWRMASK          EQU   X'000C0000'  All Write bits                          
#POLLPRIMASK         EQU   X'00100000'  The PollPri bit                         
#POLLINMASK          EQU   X'00030000'  Pollin rdnorm rdband bits               
#POLLRNMASK          EQU   X'00010000'  Read Normal                             
#POLLWNMASK          EQU   X'00040000'  Write Normal                            
#POLLEVMASK          EQU   X'001F0000'  Events                                  
*                                                                               
*                                                                               
** BPXYPOLL End