/**
* Wait for a message to arrive for this mailbox.
*
* @param timeout
* the time, in milliseconds, to wait for a message.
*
* @return an {@link OtpMsg OtpMsg} containing the header information as
* well as the body of the next message waiting in this mailbox.
*
* @exception OtpErlangExit
* if a linked {@link OtpErlangPid pid} has exited or has
* sent an exit signal to this mailbox.
*
* @exception InterruptedException
* if no message if the method times out before a message
* becomes available.
*/
public virtual OtpMsg receiveMsg(long timeout)
{
OtpMsg m = (OtpMsg)queue.get(timeout);
if (m == null)
{
return(null);
}
switch (m.type())
{
case OtpMsg.exitTag:
case OtpMsg.exit2Tag:
try
{
OtpErlangObject o = m.getMsg();
throw new OtpErlangExit(o, m.getSenderPid());
}
catch (OtpErlangDecodeException)
{
throw new OtpErlangExit("unknown", m.getSenderPid());
}
default:
return(m);
}
}
/*
* pass the message to the node for final delivery. Note that the connection
* itself needs to know about links (in case of connection failure), so we
* snoop for link/unlink too here.
*/
public override void deliver(OtpMsg msg)
{
bool delivered = self.deliver(msg);
switch (msg.type())
{
case OtpMsg.linkTag:
if (delivered)
{
links.addLink(msg.getRecipientPid(), msg.getSenderPid());
}
else
{
try
{
// no such pid - send exit to sender
base.sendExit(msg.getRecipientPid(), msg.getSenderPid(), new OtpErlangAtom("noproc"));
}
catch (IOException)
{
}
}
break;
case OtpMsg.unlinkTag:
case OtpMsg.exitTag:
links.removeLink(msg.getRecipientPid(), msg.getSenderPid());
break;
case OtpMsg.exit2Tag:
break;
}
return;
}
/*
* OtpCookedConnection delivers messages here return true if message was
* delivered successfully, or false otherwise.
*/
public bool deliver(OtpMsg m)
{
OtpMbox mbox = null;
try
{
int t = m.type();
if (t == OtpMsg.regSendTag)
{
String name = m.getRecipientName();
/* special case for netKernel requests */
if (name.Equals("net_kernel"))
{
return(netKernel(m));
}
else
{
mbox = mboxes.get(name);
}
}
else
{
mbox = mboxes.get(m.getRecipientPid());
}
if (mbox == null)
{
return(false);
}
mbox.deliver(m);
}
catch (Exception)
{
return(false);
}
return(true);
}
/*
* called by OtpNode to deliver message to this mailbox.
*
* About exit and exit2: both cause exception to be raised upon receive().
* However exit (not 2) causes any link to be removed as well, while exit2
* leaves any links intact.
*/
public virtual void deliver(OtpMsg m)
{
switch (m.type())
{
case OtpMsg.linkTag:
links.addLink(self, m.getSenderPid());
break;
case OtpMsg.unlinkTag:
links.removeLink(self, m.getSenderPid());
break;
case OtpMsg.exitTag:
links.removeLink(self, m.getSenderPid());
queue.put(m);
break;
case OtpMsg.exit2Tag:
default:
queue.put(m);
break;
}
}
/*
* OtpCookedConnection delivers messages here return true if message was
* delivered successfully, or false otherwise.
*/
public bool deliver(OtpMsg m)
{
OtpMbox mbox = null;
try
{
int t = m.type();
if (t == OtpMsg.regSendTag)
{
String name = m.getRecipientName();
/* special case for netKernel requests */
if (name.Equals("net_kernel"))
{
return netKernel(m);
}
else
{
mbox = mboxes.get(name);
}
}
else
{
mbox = mboxes.get(m.getRecipientPid());
}
if (mbox == null)
{
return false;
}
mbox.deliver(m);
}
catch (Exception)
{
return false;
}
return true;
}
/*
* pass the message to the node for final delivery. Note that the connection
* itself needs to know about links (in case of connection failure), so we
* snoop for link/unlink too here.
*/
public override void deliver(OtpMsg msg)
{
bool delivered = self.deliver(msg);
switch (msg.type())
{
case OtpMsg.linkTag:
if (delivered)
{
links.addLink(msg.getRecipientPid(), msg.getSenderPid());
}
else
{
try
{
// no such pid - send exit to sender
base.sendExit(msg.getRecipientPid(), msg.getSenderPid(), new OtpErlangAtom("noproc"));
}
catch (IOException)
{
}
}
break;
case OtpMsg.unlinkTag:
case OtpMsg.exitTag:
links.removeLink(msg.getRecipientPid(), msg.getSenderPid());
break;
case OtpMsg.exit2Tag:
break;
}
return;
}
/*
* called by OtpNode to deliver message to this mailbox.
*
* About exit and exit2: both cause exception to be raised upon receive().
* However exit (not 2) causes any link to be removed as well, while exit2
* leaves any links intact.
*/
public virtual void deliver(OtpMsg m)
{
switch (m.type())
{
case OtpMsg.linkTag:
links.addLink(self, m.getSenderPid());
break;
case OtpMsg.unlinkTag:
links.removeLink(self, m.getSenderPid());
break;
case OtpMsg.exitTag:
links.removeLink(self, m.getSenderPid());
queue.put(m);
break;
case OtpMsg.exit2Tag:
default:
queue.put(m);
break;
}
}