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⟦d474c3453⟧ Ada Source

    Length: 5120 (0x1400)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, procedure Producer_B, seg_020b34

Derivation

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

with Producer_B_Messages;
with Mail;
procedure Producer_B is

    use Producer_B_Messages.Predefined_Ops;


    Unexpected_Message : exception;
    Poor_Reply : exception;


    Out_Message : Producer_B_Messages.Message :=
       Producer_B_Messages.Message (True);

    Priority : Mail.Priority := Mail.Priority (1);
    Box : Mail.Mailbox := Mail.Look_Up ("consumer1");
    Local_Mailbox : Mail.Mailbox := Mail.Look_Up ("producer_b");
    Boxes : Mail.List;
    Trans_Id : Mail.Transaction_Id;

    procedure Toggle (M : in out Producer_B_Messages.Message) is
    begin
        M := not M;
    end Toggle;

    procedure Process_Type_B_Reply (M : in Producer_B_Messages.Reply) is
    begin
        if Producer_B_Messages.Message'Pos (Out_Message) /= Integer (M) then
            raise Poor_Reply;
        end if;
    end Process_Type_B_Reply;

    procedure Process_Incoming_Messages (M : Mail.Raw_Message) is
    begin
        if Mail.Is_A_Reply (M) then
            case Mail.Get_Kind (M) is
                when Producer_B_Messages.Reply_Kind =>
                    Process_Type_B_Reply
                       (Producer_B_Messages.Reply_Op.Receive (M));
                when others =>
                    null;
            end case;
        else
            raise Unexpected_Message;
        end if;
    end Process_Incoming_Messages;


begin

    -- construct list of mailboxes for multicast
    Mail.Add (Box, Boxes);
    Mail.Add (Box => Mail.Look_Up ("consumer2"), To => Boxes);
    Mail.Add (Box => Mail.Look_Up ("consumer3"), To => Boxes);

    for I in 1 .. 500 loop

        --------------------------------------------------
        -- issue all types of sends
        --------------------------------------------------
        Producer_B_Messages.Op.Send_With_Delivery_Completion
           (The_Message => Out_Message,
            Message_Priority => Priority,
            Destination => Box);

        -- construct new message
        Toggle (Out_Message);



        -- send a msg waiting for a reply
        Process_Type_B_Reply (Producer_B_Messages.Reply_Op.
                              Send_Blocked_With_Application_Reply
                                 (The_Message => Out_Message,
                                  Message_Priority => Priority,
                                  Destination => Box));

        -- construct new message
        Toggle (Out_Message);



        -- send a nonblocked msg with a reply
        Trans_Id := Producer_B_Messages.Reply_Op.
                       Send_Nonblocked_With_Application_Reply
                       (The_Message => Out_Message,
                        Message_Priority => Priority,
                        Source => Local_Mailbox,
                        Destination => Box);


        -- do some processing
        null;

        -- wait for reply
        Process_Incoming_Messages (Mail.Wait (Box => Local_Mailbox));

        -- construct new message
        Toggle (Out_Message);
        Producer_B_Messages.Op.Multicast (The_Message => Out_Message,
                                          Message_Priority => Priority,
                                          Destinations => Boxes);


        -- construct new message
        Toggle (Out_Message);
        Producer_B_Messages.Op.Broadcast
           (The_Message => Out_Message, Message_Priority => Priority);

        -- construct new message
        Toggle (Out_Message);

    end loop;

end Producer_B;

    nblk1=4
    nid=0
    hdr6=8
        [0x00] rec0=24 rec1=00 rec2=01 rec3=030
        [0x01] rec0=1d rec1=00 rec2=02 rec3=038
        [0x02] rec0=20 rec1=00 rec2=03 rec3=042
        [0x03] rec0=14 rec1=00 rec2=04 rec3=000
    tail 0x2151c7de4838d4473cc96 0x42a00088462060003