Hi
I tried to write an AprDatagramAcceptor and test it using the
example.udp (MemoryMonitor) example by replacing the NioAcceptor with my
AprAcceptor. In a fist step it seems to work when I use Socket.recv(),
except that I need the sender's IP address which I don't get with a
simple recv(). So I tried to use recvFrom() as shown in the code below:
protected SocketAddress receive(Long handle, IoBuffer buffer)
throws Exception {
/*initialize a new byte array for now. Is the data correctly
transferred to the
* MINA framework like this? There must be some way to write
directly to the buffer...
*/
byte b[] = new byte[buffer.capacity()];
//initialize a new apr_sockaddr_t
long ra = Address.info("123.123.123.123", 0, 0, 0, pool);
//use recvFrom() to read the datagram and fill in the
apr_sockaddr_t with the remote address
int bytesRecv =
Socket.recvFrom(ra,handle,0,b,0,buffer.capacity());
//use recv() to just get the datagram into the buffer for
further processing
//int bytesRecv = Socket.recv(handle,b,0,buffer.capacity());
//move the acquired data to the buffer used in the future.
Performance problem, there must be a direct way to do this
buffer.put(b);
//fill in the data to return (remote address)
SocketAddress sa = new InetSocketAddress(Address.getip(ra),
Address.getInfo(ra).port);
return sa;
}
What happens now is an UnsatisfiedLinkError as shown below:
UDPServer listening on port 18567
Exception in thread "pool-1-thread-2" java.lang.UnsatisfiedLinkError:
org.apache.tomcat.jni.Socket.recvFrom(JJI[BII)I
at org.apache.tomcat.jni.Socket.recvFrom(Native Method)
at
org.apache.mina.transport.socket.apr.AprDatagramAcceptor.receive(AprDatagramAcceptor.java:240)
at
org.apache.mina.transport.socket.apr.AprDatagramAcceptor.receive(AprDatagramAcceptor.java:1)
at
org.apache.mina.core.polling.AbstractPollingConnectionlessIoAcceptor.readHandle(AbstractPollingConnectionlessIoAcceptor.java:398)
at
org.apache.mina.core.polling.AbstractPollingConnectionlessIoAcceptor.processReadySessions(AbstractPollingConnectionlessIoAcceptor.java:380)
at
org.apache.mina.core.polling.AbstractPollingConnectionlessIoAcceptor.access$4(AbstractPollingConnectionlessIoAcceptor.java:374)
at
org.apache.mina.core.polling.AbstractPollingConnectionlessIoAcceptor$Worker.run(AbstractPollingConnectionlessIoAcceptor.java:333)
at
org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:65)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown
Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
I am using the mina version from the repo (checked out last thursday)
and the 1.1.14 version of tcnative-1 on a win32 (xp sp3) box...The
AprSocketAcceptor seems to work fine here...Any ideas, what I could be
missing?
cheers,
Lorenz
