home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
ADA Programming Guide
/
ADA Programming Guide.iso
/
ada_pcdp
/
ada
/
mesem.ada
< prev
next >
Wrap
Text File
|
1996-01-30
|
735b
|
43 lines
with Text_IO; use Text_IO;
with Semaphore_Package; use Semaphore_Package;
procedure MESEM is
S: Semaphore := Init(1);
task T1;
task body T1 is
begin
loop
Put_Line("Task 1 is idling");
Wait(S);
Put_Line("Task 1 critical section");
Signal(S);
end loop;
end T1;
task T2;
task body T2 is
begin
loop
Put_Line("Task 2 is idling");
Wait(S);
Put_Line("Task 2 critical section");
Signal(S);
end loop;
end T2;
task T3;
task body T3 is
begin
loop
Put_Line("Task 3 is idling");
Wait(S);
Put_Line("Task 3 critical section");
Signal(S);
end loop;
end T3;
begin
null;
end MESEM;