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Length: 5120 (0x1400)
Types: Ada Source
Notes: 03_class, FILE, R1k_Segment, e3_tag, procedure Task_Main_Example, seg_0583ff
└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
└─⟦cfc2e13cd⟧ »Space Info Vol 2«
└─⟦this⟧
with Task_Main_Support;
with Task_Code_Wrapper;
procedure Task_Main_Example is
type Operand_Type is range 0 .. 1_000_000; -- whatever....
function Some_Function (What : in Operand_Type) return Operand_Type;
package Ops is new Task_Code_Wrapper
(Operand => Operand_Type, Operate => Some_Function);
type Operator_List is array (Operand_Type range <>) of Ops.Operator;
-- Declare a list of tasks that will do the work.
List : Operator_List (1 .. 10);
Find : Operand_Type; -- temporary variable...
procedure Print (Text : in String) renames Task_Main_Support.Print;
function Some_Function (What : in Operand_Type) return Operand_Type is
begin
delay 1.0; -- simulate an action that takes a long time, but
-- that can run simultaneously with other actions.
return What * 2;
end Some_Function;
begin
Print ("At start.");
-- First give all 10 running tasks a value to work on.
for Fill in List'Range loop
Ops.Startup (List (Fill), Fill);
end loop;
Print ("After all initialized.");
-- At this point, all tasks are running on their respective values.
-- Get results from each task when ready ...
for Fill in List'Range loop
Ops.Results (List (Fill), Find);
Print ("Result (" & Operand_Type'Image (Fill) &
" ) =>" & Operand_Type'Image (Find));
end loop;
Print ("All done.");
end Task_Main_Example;
pragma Main;
-- Sample Output =>
--
-- Time 0.010: At start.
-- Time 0.020: After all initialized.
-- Time 1.020: Result( 1 ) => 2
-- Time 1.020: Result( 2 ) => 4
-- Time 1.020: Result( 3 ) => 6
-- Time 1.020: Result( 4 ) => 8
-- Time 1.030: Result( 5 ) => 10
-- Time 1.030: Result( 6 ) => 12
-- Time 1.030: Result( 7 ) => 14
-- Time 1.030: Result( 8 ) => 16
-- Time 1.030: Result( 9 ) => 18
-- Time 1.030: Result( 10 ) => 20
-- Time 1.040: All done.
--
-- (note that without tasking, this would have taken at least 10 seconds)
nblk1=4
nid=4
hdr6=6
[0x00] rec0=1f rec1=00 rec2=01 rec3=02a
[0x01] rec0=1f rec1=00 rec2=03 rec3=02a
[0x02] rec0=06 rec1=00 rec2=02 rec3=000
[0x03] rec0=06 rec1=00 rec2=02 rec3=000
tail 0x21765a18887e37844cfd8 0x42a00088462060003
Free Block Chain:
0x4: 0000 00 00 00 04 80 01 6c 01 02 03 04 05 06 07 05 62 ┆ l b┆