NAME

       XPAPoll -  execute existing XPA requests

SYNOPSIS

         #include <xpa.h>

         int XPAPoll(int msec, int maxreq);

DESCRIPTION

       It is sometimes desirable to implement a polling loop, i.e., where one checks for and processes XPA
       requests without blocking.  For this situation, use the XPAPoll() routine:

         XPAPoll(int msec, int maxreq);

       The XPAPoll() routine will perform XPAAddSelect() and select(), but with a timeout specified in millisecs
       by the msec argument. If one or more XPA requests are made before the timeout expires, the
       XPAProcessSelect() routine is called to process those requests. The maxreq value determines how many
       requests will be processed: if maxreq < 0, then no events are processed, but instead, the return value
       indicates the number of events that are pending.  If maxreq == 0, then all currently pending requests
       will be processed.  Otherwise, up to maxreq requests will be processed.  (The most usual values for
       maxreq are 0 to process all requests and 1 to process one request).

SEE ALSO

       See xpa(7) for a list of XPA help pages