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

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⟦916e26a46⟧ Ada Source

    Length: 3072 (0xc00)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Buffer, seg_051233

Derivation

└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
    └─ ⟦5a81ac88f⟧ »Space Info Vol 1« 
        └─⟦this⟧ 

package body Buffer is

    procedure Create (O : in out Object) is
    begin
        O.Nb_Item := 0;
        O.Tete := 1;
        O.Queue := 1;
    end Create;


    procedure Add (O : in out Object; I : Item) is
    begin  
        if Is_Full (O) then
            raise Buffer_Full_Error;
        else
            O.Buff (O.Queue) := I;
            O.Nb_Item := O.Nb_Item + 1;
            O.Queue := (O.Queue mod Taille) + 1;
        end if;
    end Add;


    procedure Get (O : in out Object; I : in out Item) is
    begin
        if Is_Empty (O) then
            raise Buffer_Empty_Error;
        else  
            I := O.Buff (O.Tete);
            O.Tete := (O.Tete mod Taille) + 1;
            O.Nb_Item := O.Nb_Item - 1;
        end if;
    end Get;


    function Is_Empty (O : Object) return Boolean is
    begin
        return (O.Nb_Item = 0);
    end Is_Empty;


    function Is_Full (O : Object) return Boolean is
    begin
        return (O.Nb_Item = Taille);
    end Is_Full;

    function Empty_Places (O : Object) return Natural is
    begin
        return (Taille - O.Nb_Item);
    end Empty_Places;

end Buffer;

    nblk1=2
    nid=0
    hdr6=4
        [0x00] rec0=2b rec1=00 rec2=01 rec3=008
        [0x01] rec0=0a rec1=00 rec2=02 rec3=001
    tail 0x2154b286887995af794af 0x42a00088462060003