1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Mu - channel.mu</title>
<meta name="Generator" content="Vim/7.4">
<meta name="plugin-version" content="vim7.4_v1">
<meta name="syntax" content="none">
<meta name="settings" content="use_css,pre_wrap,no_foldcolumn,expand_tabs,prevent_copy=">
<meta name="colorscheme" content="minimal">
<style type="text/css">
<!--
pre { white-space: pre-wrap; font-family: monospace; color: #d0d0d0; background-color: #080808; }
body { font-family: monospace; color: #d0d0d0; background-color: #080808; }
* { font-size: 1em; }
.Delimiter { color: #c000c0; }
.Comment { color: #8080ff; }
.Constant { color: #008080; }
.Special { color: #ff6060; }
.Identifier { color: #008080; }
.muRecipe { color: #ff8700; }
-->
</style>
<script type='text/javascript'>
<!--
-->
</script>
</head>
<body>
<pre id='vimCodeElement'>
<span class="Comment"># example program: communicating between routines using channels</span>
<span class="muRecipe">recipe</span> producer [
<span class="Comment"># produce numbers 1 to 5 on a channel</span>
<span class="Identifier">default-space</span>:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">30:literal</span>
chan:address:channel<span class="Special"> <- </span><span class="Identifier">next-ingredient</span>
<span class="Comment"># n = 0</span>
n:number<span class="Special"> <- </span>copy <span class="Constant">0:literal</span>
<span class="Delimiter">{</span>
done?:boolean<span class="Special"> <- </span>lesser-than n:number, <span class="Constant">5:literal</span>
<span class="Identifier">break-unless</span> done?:boolean
<span class="Comment"># other threads might get between these prints</span>
<span class="Identifier"> $print</span> <span class="Constant">[produce: ]</span>, n:number, <span class="Constant">[ </span>
<span class="Constant">]</span>
chan:address:channel<span class="Special"> <- </span>write chan:address:channel, n:number
n:number<span class="Special"> <- </span>add n:number, <span class="Constant">1:literal</span>
<span class="Identifier">loop</span>
<span class="Delimiter">}</span>
]
<span class="muRecipe">recipe</span> consumer [
<span class="Comment"># consume and print integers from a channel</span>
<span class="Identifier">default-space</span>:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">30:literal</span>
chan:address:channel<span class="Special"> <- </span><span class="Identifier">next-ingredient</span>
<span class="Delimiter">{</span>
<span class="Comment"># read an integer from the channel</span>
n:number, chan:address:channel<span class="Special"> <- </span>read chan:address:channel
<span class="Comment"># other threads might get between these prints</span>
<span class="Identifier"> $print</span> <span class="Constant">[consume: ]</span>, n:number, <span class="Constant">[ </span>
<span class="Constant">]</span>
<span class="Identifier">loop</span>
<span class="Delimiter">}</span>
]
<span class="muRecipe">recipe</span> main [
<span class="Identifier">default-space</span>:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">30:literal</span>
chan:address:channel<span class="Special"> <- </span>init-channel <span class="Constant">3:literal</span>
<span class="Comment"># create two background 'routines' that communicate by a channel</span>
routine1:number<span class="Special"> <- </span>start-running producer:<span class="muRecipe">recipe</span>, chan:address:channel
routine2:number<span class="Special"> <- </span>start-running consumer:<span class="muRecipe">recipe</span>, chan:address:channel
wait-for-routine routine1:number
wait-for-routine routine2:number
]
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|