RE: PAG gone away in V4R4+

[Gene_Gaunt/ReviewWorks@xxxxxxxxxxxxxxx]

Here is code that walks the ODP chain.  Only the traditional ODPs
from the QDM* routines are here.  The new ODPs from IFS are chained
elsewhere, in Unicode.

dcl sysptr ?QDMCQ     baspco pos(H"21");
dcl mspptr ?Walk;
dcl dd     Forward    bas(?Walk) pos(1) bin(4);
dcl sysptr ?ODP       bas(?Walk) pos(H"31");
dcl mspptr ?Space;

    setsppfp  ?Walk, ?QDMCQ;         -- point to data mgmt queue
    setsppo   ?Walk, H"98";          -- point to shared header
    cmpnv(b)  Forward, -1 / neq(AA); -- jump if a shared exists
    setsppo   ?Walk, H"A0";          -- point to non-shared header
AA: cmpnv(b)  Forward, -1 / EQ(BB);  -- exit loop if end of chain
    setsppo   ?Walk, Forward;        -- point to next entry
    setsppfp  ?Space, ?ODP;          -- point into an ODP space
    b         AA;                    -- repeat until end of chain
BB:


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