internal static void CloseSelector(java.nio.channels.Selector selector)
{
java.util.Set keys = selector.keys();
java.util.Iterator it = keys.iterator();
try
{
selector.close();
}
catch (Exception e)
{
#if DEBUG
Console.WriteLine("Caught exception during CloseSelector selector.close - {0}: {1}\n{2}", e.GetType(), e.Message, e.StackTrace);
#endif
}
while (it.hasNext())
{
java.nio.channels.SelectionKey key = (java.nio.channels.SelectionKey)it.next();
Socket source = (Socket)key.attachment();
key.cancel();
try
{
if (source.Blocking)
{
/*
* A channel must be placed into non-blocking mode before being registered
* with a selector, and may not be returned to blocking mode until it has been
* deregistered. So, I need set the channel back to the blocking mode, if it was
* in blocking mode before select operation
*/
source.Blocking = true;
}
}
catch (Exception be)
{
#if DEBUG
Console.WriteLine("Caught exception during CloseSelector source.Blocking - {0}: {1}\n{2}", be.GetType(), be.Message, be.StackTrace);
#endif
}
}
try
{
selector.close();
}
catch (Exception e)
{
#if DEBUG
Console.WriteLine("Caught exception during CloseSelector selector.close - {0}: {1}\n{2}", e.GetType(), e.Message, e.StackTrace);
#endif
}
}
internal static void Select_internal(ref Socket [] sockets, int microSeconds, out int error)
{
error = 0;
java.nio.channels.Selector selector = java.nio.channels.Selector.open();
int mode = 0;
int count = sockets.Length;
for (int i = 0; i < count; i++)
{
if (sockets [i] == null)
{ // separator
mode++;
continue;
}
GHSocket sock = sockets [i].GHHandle;
if (sock == null)
{
throw new ArgumentNullException("GHSocket handle is null");
}
sock.RegisterSelector(selector, mode, sockets [i], out error);
if (error != 0)
{
error = 0;
sockets = null;
CloseSelector(selector);
return;
}
}
sockets = null;
long timeOutMillis = 1;
if (microSeconds < 0)
{
timeOutMillis = 0;
}
else if (microSeconds > 999)
{
timeOutMillis = (long)(microSeconds / 1000);
}
int readyCount = 0;
try
{
readyCount = selector.select(timeOutMillis);
}
catch (Exception e)
{
error = 10022; //WSAEINVAL (Invalid argument)
#if DEBUG
Console.WriteLine("Caught exception during Select_internal selector.select - {0}: {1}\n{2}", e.GetType(), e.Message, e.StackTrace);
#endif
}
if (readyCount > 0)
{
try
{
sockets = new Socket[readyCount + 2];
Socket[] writeList = new Socket[readyCount];
Socket[] errorList = new Socket[readyCount];
int readListCount = 0;
int writeListCount = 0;
int errorListCount = 0;
java.util.Set readyKeys = selector.selectedKeys();
java.util.Iterator it = readyKeys.iterator();
while (it.hasNext())
{
java.nio.channels.SelectionKey key = (java.nio.channels.SelectionKey)it.next();
if (key.isAcceptable() || key.isReadable())
{
sockets[readListCount] = (Socket)key.attachment();
readListCount++;
}
if (key.isWritable())
{
writeList[writeListCount] = (Socket)key.attachment();
writeListCount++;
}
if (key.isConnectable())
{
Socket source = (Socket)key.attachment();
if (source.GHHandle.CheckConnectionFinished())
{
writeList[writeListCount] = source;
writeListCount++;
}
else
{
errorList[errorListCount] = source;
errorListCount++;
}
}
}
sockets[readListCount] = null;
readListCount++;
for (int i = 0; i < writeListCount; i++, readListCount++)
{
sockets[readListCount] = writeList[i];
}
sockets[readListCount] = null;
readListCount++;
for (int i = 0; i < errorListCount; i++, readListCount++)
{
sockets[readListCount] = errorList[i];
}
}
catch (Exception e)
{
error = 10022; //WSAEINVAL (Invalid argument)
#if DEBUG
Console.WriteLine("Caught exception during Select_internal iterate selected keys - {0}: {1}\n{2}", e.GetType(), e.Message, e.StackTrace);
#endif
}
}
CloseSelector(selector);
}