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cpp-libs
Actor Framework
Commits
de050c19
Commit
de050c19
authored
May 21, 2012
by
neverlord
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Merge branch 'unstable' of github.com:Neverlord/libcppa into unstable
parents
d8137120
4bfa1d93
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benchmarks/DistributedRemoteActors.scala
benchmarks/DistributedRemoteActors.scala
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benchmarks/DistributedRemoteActors.scala
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de050c19
import
scala.actors._
import
scala.actors.Actor.self
import
scala.actors.remote.RemoteActor
import
scala.actors.remote.RemoteActor.
{
alive
,
select
,
register
}
import
scala.actors.remote.Node
import
scala.actors.TIMEOUT
import
scala.annotation.tailrec
import
Console.println
case
class
Ping
(
value
:
Int
)
case
class
Pong
(
value
:
Int
)
case
class
KickOff
(
value
:
Int
)
case
object
Done
case
class
Ok
(
token
:
String
)
case
class
Hello
(
token
:
String
)
case
class
Olleh
(
token
:
String
)
case
class
Error
(
msg
:
String
,
token
:
String
)
case
class
AddPong
(
path
:
String
,
token
:
String
)
case
class
RemoteActorPath
(
uri
:
String
,
host
:
String
,
port
:
Int
)
class
PingActor
(
parent
:
OutputChannel
[
Any
],
pongs
:
List
[
OutputChannel
[
Any
]])
extends
Actor
{
private
var
left
=
pongs
.
length
private
def
recvLoop
:
Nothing
=
react
{
case
Pong
(
0
)
=>
{
parent
!
Done
if
(
left
>
1
)
{
left
-=
1
recvLoop
}
}
case
Pong
(
value
)
=>
sender
!
Ping
(
value
-
1
);
recvLoop
}
override
def
act
()
=
react
{
case
KickOff
(
value
)
=>
pongs
.
foreach
(
_
!
Ping
(
value
));
recvLoop
}
}
case
class
Peer
(
path
:
String
,
channel
:
OutputChannel
[
Any
])
case
class
PendingPeer
(
path
:
String
,
channel
:
OutputChannel
[
Any
],
client
:
OutputChannel
[
Any
],
clientToken
:
String
)
case
class
Peers
(
connected
:
List
[
Peer
],
pending
:
List
[
PendingPeer
])
class
ServerActor
(
port
:
Int
)
extends
Actor
{
override
def
act
()
{
RemoteActor
classLoader
=
getClass
().
getClassLoader
alive
(
port
)
register
(
'Pong
,
self
)
@tailrec
def
recvLoop
(
peers
:
Peers
)
:
Nothing
=
{
def
recv
(
peers
:
Peers
,
receiveFun
:
PartialFunction
[
Any
,
Peers
]
=>
Peers
)
:
Peers
=
receiveFun
{
case
Ping
(
value
)
=>
sender
!
Pong
(
value
);
peers
case
Hello
(
token
)
=>
sender
!
Olleh
(
token
);
peers
case
Olleh
(
token
)
=>
{
peers
.
pending
find
(
_
.
clientToken
==
token
)
match
{
case
Some
(
PendingPeer
(
path
,
channel
,
client
,
_
))
=>
{
client
!
Ok
(
token
)
//println("recv[" + peers + "]: received Olleh from " + path)
Peers
(
Peer
(
path
,
channel
)
::
peers
.
connected
,
peers
.
pending
filterNot
(
_
.
clientToken
==
token
))
}
case
None
=>
peers
}
}
case
AddPong
(
path
,
token
)
=>
{
//println("received AddPong(" + path + ", " + token + ")")
if
(
peers
.
connected
exists
(
_
.
path
==
path
))
{
sender
!
Ok
(
token
)
//println("recv[" + peers + "]: " + path + " cached (replied 'Ok')")
peers
}
else
{
try
path
split
":"
match
{
case
Array
(
node
,
port
)
=>
{
val
channel
=
select
(
new
Node
(
node
,
port
.
toInt
),
'Pong
)
channel
!
Hello
(
token
)
//println("recv[" + peers + "]: sent 'Hello' to " + path)
Peers
(
peers
.
connected
,
PendingPeer
(
path
,
channel
,
sender
,
token
)
::
peers
.
pending
)
}
}
catch
{
// catches match error and integer conversion failure
case
e
=>
sender
!
Error
(
e
.
toString
,
token
);
peers
}
}
}
case
KickOff
(
value
)
=>
{
(
new
PingActor
(
sender
,
peers
.
connected
map
(
_
.
channel
))).
start
!
KickOff
(
value
)
//println("recv[" + peers + "]: KickOff(" + value + ")")
peers
}
case
TIMEOUT
=>
{
peers
.
pending
foreach
(
x
=>
x
.
client
!
Error
(
"cannot connect to "
+
x
.
path
,
x
.
clientToken
))
Peers
(
peers
.
connected
,
Nil
)
}
}
recvLoop
(
recv
(
peers
,
if
(
peers
.
pending
isEmpty
)
receive
else
receiveWithin
(
5000
)))
}
recvLoop
(
Peers
(
Nil
,
Nil
))
}
}
class
ClientActor
(
pongPaths
:
List
[
RemoteActorPath
],
numPings
:
Int
)
extends
Actor
{
override
def
act
()
=
{
RemoteActor
classLoader
=
getClass
().
getClassLoader
val
pongs
=
pongPaths
map
(
x
=>
{
val
pong
=
select
(
new
Node
(
x
.
host
,
x
.
port
),
'Pong
)
pongPaths
foreach
(
y
=>
if
(
x
!=
y
)
pong
!
AddPong
(
y
.
uri
,
x
.
uri
+
" -> "
+
y
.
uri
))
pong
})
@tailrec
def
collectOkMessages
(
left
:
Int
,
receivedTokens
:
List
[
String
])
:
Unit
=
{
if
(
left
>
0
)
collectOkMessages
(
left
-
1
,
receiveWithin
(
10000
)
{
case
Ok
(
token
)
=>
token
::
receivedTokens
case
Error
(
msg
,
token
)
=>
throw
new
RuntimeException
(
"connection failed: "
+
token
+
", message from server: "
+
msg
)
case
TIMEOUT
=>
throw
new
RuntimeException
(
"no Ok within 10sec.\nreceived tokens:\n"
+
receivedTokens
.
sortWith
(
_
.
compareTo
(
_
)
<
0
).
mkString
(
"\n"
))
})
}
collectOkMessages
(
pongs
.
length
*
(
pongs
.
length
-
1
),
Nil
)
// kickoff
pongs
foreach
(
_
!
KickOff
(
numPings
))
// collect done messages
for
(
_
<-
1
until
(
pongs
.
length
*
(
pongs
.
length
-
1
)))
{
receiveWithin
(
30
*
60
*
1000
)
{
case
Done
=>
Unit
case
TIMEOUT
=>
throw
new
RuntimeException
(
"no Done within 30min"
)
case
x
=>
throw
new
RuntimeException
(
"Unexpected message: "
+
x
.
toString
)
}
}
}
}
object
DistributedClientApp
{
val
NumPings
=
"num_pings=([0-9]+)"
.
r
val
SimpleUri
=
"([0-9a-zA-Z\\.]+):([0-9]+)"
.
r
@tailrec
def
runRemoteActors
(
args
:
List
[
String
],
pongs
:
List
[
RemoteActorPath
],
numPings
:
Option
[
Int
])
:
Unit
=
args
match
{
case
NumPings
(
num
)
::
tail
=>
numPings
match
{
case
Some
(
x
)
=>
throw
new
IllegalArgumentException
(
"\"num_pings\" already defined, first value = "
+
x
+
", second value = "
+
num
)
case
None
=>
runRemoteActors
(
tail
,
pongs
,
Some
(
num
.
toInt
))
}
case
arg
::
tail
=>
arg
match
{
case
SimpleUri
(
host
,
port
)
=>
runRemoteActors
(
tail
,
RemoteActorPath
(
arg
,
host
,
port
.
toInt
)
::
pongs
,
numPings
)
case
_
=>
throw
new
IllegalArgumentException
(
"illegal argument: "
+
arg
)
}
case
Nil
=>
numPings
match
{
case
Some
(
x
)
=>
{
if
(
pongs
.
length
<
2
)
throw
new
RuntimeException
(
"at least two hosts required"
)
(
new
ClientActor
(
pongs
,
x
)).
start
}
case
None
=>
throw
new
RuntimeException
(
"no \"num_pings\" found"
)
}
}
def
main
(
args
:
Array
[
String
])
:
Unit
=
{
try
runRemoteActors
(
args
.
toList
,
Nil
,
None
)
catch
{
case
e
=>
{
println
(
"usage: DistributedClientApp {nodes...} num_pings={num}\nexample: DistributedClientApp localhost:1234 localhost:2468 num_pings=1000\n"
)
throw
e
}
}
}
}
object
DistributedServerApp
{
def
usage
=
println
(
"usage: DistributedServerApp {port}"
)
def
main
(
args
:
Array
[
String
])
:
Unit
=
{
if
(
args
.
length
>
1
)
{
usage
println
(
"\ntoo much arguments, please give a valid TCP port only"
)
}
try
{
(
new
ServerActor
(
args
(
0
).
toInt
)).
start
}
catch
{
case
e
=>
usage
;
throw
e
}
}
}
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