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Diffstat (limited to 'docs/examples/pilib/elasticBuffer.scala')
-rw-r--r-- | docs/examples/pilib/elasticBuffer.scala | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/docs/examples/pilib/elasticBuffer.scala b/docs/examples/pilib/elasticBuffer.scala deleted file mode 100644 index 5fec96ab6c..0000000000 --- a/docs/examples/pilib/elasticBuffer.scala +++ /dev/null @@ -1,77 +0,0 @@ -package examples.pilib - -object elasticBuffer { - - import scala.concurrent.pilib._ - - /** - * Recursive type for channels that carry a "String" channel and - * an object of the type we define. - */ - class MetaChan extends Chan[Pair[Chan[String], MetaChan]] - - def Buffer(put: Chan[String], get: Chan[String]): Unit = { - - /** - * An empty buffer cell, ready to pass on (o,r) to the left. - */ - def Bl(i:Chan[String], l: MetaChan, - o: Chan[String], r: MetaChan): unit = - choice ( - l(Pair(o,r)) * (System.out.println("Removed one cell.")), - i * (inp => Cl(i, l, o, r, inp)) - ) - - /** - * A buffer cell containing a value, ready to receive (o,r) from the right. - */ - def Cl(i: Chan[String], l: MetaChan, - o: Chan[String], r: MetaChan, content: String): Unit = - choice ( - o(content) * (Bl(i,l,o,r)), - i * (inp => Dl(i,l,o,r,content, inp)), - r * ( { case Pair(newo, newr) => Cl(i,l,newo,newr,content) }) - ) - - /** - * Two joined buffer cells, of type Cl - */ - def Dl(i: Chan[String], l: MetaChan, - o: Chan[String], r: MetaChan, - content: String, inp: String): Unit = { - val newlr = new MetaChan - val newio = new Chan[String] - spawn < Cl(i, l, newio, newlr, inp) | Cl(newio, newlr, o, r, content) > - } - - // l and r channels for the leftmost and rightmost cell, respectively. - val unused1 = new MetaChan - val unused2 = new MetaChan - - Bl(put, unused1, get, unused2) - } - - val random = new java.util.Random() - - def Producer(n: int, put: Chan[String]): Unit = { - Thread.sleep(1 + random.nextInt(1000)) - val msg = "object " + n - put.write(msg) - System.out.println("Producer gave " + msg) - Producer(n + 1, put) - } - - def Consumer(get: Chan[String]): Unit = { - Thread.sleep(1 + random.nextInt(1000)) - val msg = get.read - System.out.println("Consumer took " + msg) - Consumer(get) - } - - def main(args: Array[String]): Unit = { - val put = new Chan[String] - val get = new Chan[String] - spawn < Producer(0, put) | Consumer(get) | Buffer(put, get) > - } - -} |