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NetCoreServer/examples/UdpMulticastClient/Program.cs at master · iDevelopThings/NetCoreServer · GitHub
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examples
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UdpMulticastClient
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Program.cs
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examples
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UdpMulticastClient
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Program.cs
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using
System
;
using
System
.
Net
;
using
System
.
Net
.
Sockets
;
using
System
.
Text
;
using
System
.
Threading
;
using
UdpClient
=
NetCoreServer
.
UdpClient
;
namespace
UdpMulticastClient
{
class
MulticastClient
:
UdpClient
{
public
string
Multicast
;
public
MulticastClient
(
string
address
,
int
port
)
:
base
(
address
,
port
)
{
}
public
void
DisconnectAndStop
(
)
{
_stop
=
true
;
Disconnect
(
)
;
while
(
IsConnected
)
Thread
.
Yield
(
)
;
}
protected
override
void
OnConnected
(
)
{
Console
.
WriteLine
(
$
"Multicast UDP client connected a new session with Id
{
Id
}
"
)
;
// Join UDP multicast group
JoinMulticastGroup
(
Multicast
)
;
// Start receive datagrams
ReceiveAsync
(
)
;
}
protected
override
void
OnDisconnected
(
)
{
Console
.
WriteLine
(
$
"Multicast UDP client disconnected a session with Id
{
Id
}
"
)
;
// Wait for a while...
Thread
.
Sleep
(
1000
)
;
// Try to connect again
if
(
!
_stop
)
Connect
(
)
;
}
protected
override
void
OnReceived
(
EndPoint
endpoint
,
byte
[
]
buffer
,
long
offset
,
long
size
)
{
Console
.
WriteLine
(
"Incoming: "
+
Encoding
.
UTF8
.
GetString
(
buffer
,
(
int
)
offset
,
(
int
)
size
)
)
;
// Continue receive datagrams
ReceiveAsync
(
)
;
}
protected
override
void
OnError
(
SocketError
error
)
{
Console
.
WriteLine
(
$
"Multicast UDP client caught an error with code
{
error
}
"
)
;
}
private
bool
_stop
;
}
class
Program
{
static
void
Main
(
string
[
]
args
)
{
// UDP listen address
string
listenAddress
=
"0.0.0.0"
;
if
(
args
.
Length
>
0
)
listenAddress
=
args
[
0
]
;
// UDP multicast address
string
multicastAddress
=
"239.255.0.1"
;
if
(
args
.
Length
>
1
)
multicastAddress
=
args
[
1
]
;
// UDP multicast port
int
multicastPort
=
3334
;
if
(
args
.
Length
>
2
)
multicastPort
=
int
.
Parse
(
args
[
2
]
)
;
Console
.
WriteLine
(
$
"UDP listen address:
{
listenAddress
}
"
)
;
Console
.
WriteLine
(
$
"UDP multicast address:
{
multicastAddress
}
"
)
;
Console
.
WriteLine
(
$
"UDP multicast port:
{
multicastPort
}
"
)
;
Console
.
WriteLine
(
)
;
// Create a new TCP chat client
var
client
=
new
MulticastClient
(
listenAddress
,
multicastPort
)
;
client
.
SetupMulticast
(
true
)
;
client
.
Multicast
=
multicastAddress
;
// Connect the client
Console
.
Write
(
"Client connecting..."
)
;
client
.
Connect
(
)
;
Console
.
WriteLine
(
"Done!"
)
;
Console
.
WriteLine
(
"Press Enter to stop the client or '!' to reconnect the client..."
)
;
// Perform text input
for
(
;
;
)
{
string
line
=
Console
.
ReadLine
(
)
;
if
(
string
.
IsNullOrEmpty
(
line
)
)
break
;
// Disconnect the client
if
(
line
==
"!"
)
{
Console
.
Write
(
"Client disconnecting..."
)
;
client
.
Disconnect
(
)
;
Console
.
WriteLine
(
"Done!"
)
;
continue
;
}
}
// Disconnect the client
Console
.
Write
(
"Client disconnecting..."
)
;
client
.
DisconnectAndStop
(
)
;
Console
.
WriteLine
(
"Done!"
)
;
}
}
}
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