DataMuseum.dk Presents historical artifacts from the history of: Rational R1000/400

This is an automatic "excavation" of a thematic subset of artifacts from Datamuseum.dk's BitArchive. See our Wiki for more about Rational R1000/400 Excavated with: AutoArchaeologist - Free & Open Source Software.

top - metrics - download

⟦1bbc4b3c8⟧ Ada Source

    Length: 3072 (0xc00)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Count_Semaphore, package body Semaphore, seg_058299

Derivation

└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
    └─⟦cfc2e13cd⟧ »Space Info Vol 2« 
        └─⟦this⟧ 

package body Semaphore is

    package body Count_Semaphore is

        task body Counting_Semaphore is
            S : Integer := Init;
        begin
            loop    -- run forever, waiting for P or V to be called
                select
                    when S > 0 =>
                        accept P;
                        S := S - 1;
                or
                    accept V;
                    S := S + 1; -- S > INIT implies that new resources
                end select;              -- became available that were originall

            end loop;                    -- unknown. This is not like Amoroso's
        end Counting_Semaphore;          -- version.

    end Count_Semaphore;

    task body Binary_Semaphore is
    begin
        loop
            select
                accept P;
            or
                terminate;
            end select;
            accept V;
        end loop;
    end Binary_Semaphore;

end Semaphore;

    nblk1=2
    nid=0
    hdr6=4
        [0x00] rec0=24 rec1=00 rec2=01 rec3=006
        [0x01] rec0=02 rec1=00 rec2=02 rec3=001
    tail 0x21765889287e280695099 0x42a00088462060003