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|
(* TEST
include systhreads;
hassysthreads;
{
bytecode;
}{
native;
}
*)
(* Torture test - I/O interspersed with lots of GC *)
let finished = ref false
let gc_thread () =
while not !finished do
(* print_string "gc"; print_newline(); *)
Gc.minor();
Thread.yield()
done
let writer_thread (oc, size) =
while not !finished do
(* print_string "writer "; print_int size; print_newline(); *)
let buff = Bytes.make size 'a' in
ignore(Unix.write oc buff 0 size)
done;
let buff = Bytes.make size 'b' in
ignore (Unix.write oc buff 0 size)
let reader_thread (ic, size) =
while true do
(* print_string "reader "; print_int size; print_newline(); *)
let buff = Bytes.make size ' ' in
let n = Unix.read ic buff 0 size in
(* print_string "reader "; print_int n; print_newline(); *)
for i = 0 to n-1 do
if Bytes.get buff i = 'b' then raise Thread.Exit
else if Bytes.get buff i <> 'a' then
print_string "error in reader_thread\n"
done
done
let _ =
let t1 = Thread.create gc_thread () in
let (out1, in1) = Unix.pipe() in
let t2 = Thread.create writer_thread (in1, 4096) in
let t3 = Thread.create reader_thread (out1, 4096) in
let (out2, in2) = Unix.pipe() in
let t4 = Thread.create writer_thread (in2, 16) in
let t5 = Thread.create reader_thread (out2, 16) in
Thread.delay 3.0;
finished := true;
List.iter Thread.join [t1; t2; t3; t4; t5];
print_string "passed\n"
|
