A General Interface to Director Facilities



DPROCEDURE

%externalintegerfn DPROCEDURE(%integer ACT, ADR)

 This procedure provides a general interface to Director to allow
 new facilities to be tested easily

 ACT is an activity number and ADR the address of a record

 ACT = 1
        Returns Directors 'proclist'.  In this case, ADR is the
        address of a record of format:
           %integername N, %integer A
        the proclist entries are returned to address A onwards and
        the number of entries is returned in N.  Currently each
        proclist entry is 56 bytes long, but is liable to change.

 ACT = 2
        Allows the caller to 'fork' another invocation of his own process.
        ADR is the address of a record of format:
           %integer INVOC, %string(31)PARAM
        The new invocation number is returned in INVOC and PARAM
        is placed in the UINF record of the new invocation as
        UINF_SPOOLRFILE.  The caller should disable the IO streams
        before calling this procedure.  Director disconnects the
        streams and reconnects them subsequently to the new
        invocation.
 ACT = 3
        Sends a message to another invocation of your own process.
        ADR is the address of a record of format:
           %record(PARMF) P, %integer INVOC, MSGTYPE, OUTNO)