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Length: 3072 (0xc00)
Types: Ada Source
Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Fifo, seg_02422c
└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
└─ ⟦5a81ac88f⟧ »Space Info Vol 1«
└─⟦this⟧
package body Fifo is
Tab : array (1 .. Size) of Element;
Head, Tail : Positive := 1;
task body Task_Fifo is
begin
loop
select
accept Get (Item : out Element; Result : out Boolean) do
if not Is_Empty then
Get (Item);
Result := True;
else
Result := False;
end if;
end Get;
or
accept Put (Item : in Element; Result : out Boolean) do
if not Is_Full then
Put (Item);
Result := True;
else
Result := False;
end if;
end Put;
or
accept Clear do
Clear;
end Clear;
or
terminate;
end select;
end loop;
end Task_Fifo;
procedure Clear is
begin
Head := 1;
Tail := 1;
end Clear;
function Is_Empty return Boolean is
begin
return Head = Tail;
end Is_Empty;
function Is_Full return Boolean is
begin
return Tail + 1 mod Size = Head;
end Is_Full;
procedure Get (Item : out Element) is
begin
Item := Tab (Head);
if Head = Size then
Head := 1;
else
Head := Head + 1;
end if;
end Get;
procedure Put (Item : in Element) is
begin
Tab (Tail) := Item;
if Tail = Size then
Tail := 1;
else
Tail := Tail + 1;
end if;
end Put;
end Fifo;
nblk1=2
nid=0
hdr6=4
[0x00] rec0=24 rec1=00 rec2=01 rec3=034
[0x01] rec0=30 rec1=00 rec2=02 rec3=001
tail 0x2151ec6c6839c4a4f542a 0x42a00088462060003