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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
@deprecated("Suppress warnings", since="2.11")
object Test {
import scala.actors.Reactor
case class Stop()
case class Get(from: Reactor[Any])
case class Put(x: Int)
class UnboundedBuffer extends Reactor[Any] {
def act() {
try {
react {
case Stop() =>
case Get(from) =>
val consumer = from
react {
case msg @ Put(x) =>
consumer ! x
act()
}
}
} catch {
case e: Throwable if !e.isInstanceOf[scala.util.control.ControlThrowable] =>
e.printStackTrace()
}
}
}
class Producer(buf: UnboundedBuffer, n: Int, delay: Long, parent: Reactor[Any]) extends Reactor[Any] {
def act() {
try {
var i = 0
while (i < n) {
i += 1
if (delay > 0) Thread.sleep(delay)
buf ! Put(42)
}
parent ! Stop()
} catch {
case e: Throwable if !e.isInstanceOf[scala.util.control.ControlThrowable] =>
e.printStackTrace()
}
}
}
class Consumer(buf: UnboundedBuffer, n: Int, delay: Long, parent: Reactor[Any]) extends Reactor[Any] {
val step = n / 10
var i = 0
def act() {
try {
if (i < n) {
i += 1
if (delay > 0) Thread.sleep(delay)
buf ! Get(this)
react {
case res =>
if (i % step == 0)
println(res)
act()
}
} else {
parent ! Stop()
}
} catch {
case e: Throwable if !e.isInstanceOf[scala.util.control.ControlThrowable] =>
e.printStackTrace()
}
}
}
def main(args: Array[String]) {
val parent = new Reactor[Any] {
def act() {
try {
val buffer = new UnboundedBuffer
buffer.start()
val producer = new Producer(buffer, 10000, 0, this)
producer.start()
val consumer = new Consumer(buffer, 10000, 0, this)
consumer.start()
react {
case Stop() =>
react {
case Stop() =>
buffer ! Stop()
}
}
} catch {
case e: Throwable if !e.isInstanceOf[scala.util.control.ControlThrowable] =>
e.printStackTrace()
}
}
}
parent.start()
}
}
|
