1 # This file is part of NIT ( http://www.nitlanguage.org ).
3 # Copyright 2011 Alexis Laferrière <alexis.laf@xymus.net>
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
17 # Test logic: 3 processes are launched with a predictable return order,
18 # if poll works correctly it will report when their stdout is closed.
24 p1
= new IProcess( "sleep", "0.2" )
25 p2
= new IProcess( "sleep", "0.1" )
26 p3
= new IProcess( "sleep", "0.4" )
28 var order
= new Array[FDStream]
29 var streams
= [p1
.stream_in
, p2
.stream_in
, p3
.stream_in
]
31 while not streams
.is_empty
do
32 var s
= poll
( streams
)
33 if s
== null then continue # may have been interrupted
36 streams
.remove
( s
.as(FDIStream ) )
39 print order
[0] == p2
.stream_in
40 print order
[1] == p1
.stream_in
41 print order
[2] == p3
.stream_in