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2002-11-29 Michael Koch <konqueror@gmx.de>

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* gnu/java/nio/DatagramChannelImpl:
	(fd): New member variable to store file descriptor of socket.
	* gnu/java/nio/SelectionKeyImpl.java:
	(ops): Removed.
	(readyOps): New member variable.
	(interestOps): New member variable.
	(readyOps): Implemented.
	(readyOps): New method to set member variable readyOps.
	(interestOps): Replaced ops by interestOps.
	* gnu/java/nio/SelectorImpl.java:
	(SelectorImpl): Initialize key sets.
	(select): Call select with -1 instead of Long.MAX_VALUE).
	(java_do_select): Make it a native method.
	(getFDsAsArray): New helper method.
	(select): Remove canceled keys, give only interested file discriptors
	to java_do_select, set ready ops.
	(add): No need to initialize keys set here.
	(add_selected): No need to initialize selected set here.
	(deregisterCanceledKeys): New helper method.
	(register): Set interest ops, set attachments, added handling of datagram
	channels.
	* gnu/java/nio/ServerSocketChannelImpl:
	(SocketAccept): Renamed from NioSocketAccept.
	(implConfigureBlocking): Implemented.
	(accept): Use SocketAccept instead of NioSocketAccept.
	* gnu/java/nio/SocketChannelImpl:
	Reactivate native methods.

From-SVN: r59632
This commit is contained in:
Michael Koch
2002-11-29 09:57:05 +00:00
committed by Michael Koch
parent 45596747ca
commit a4536c7a94
6 changed files with 186 additions and 67 deletions
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libjava/gnu/java/nio/SelectorImpl.java
+135 -40
View File
@@ -56,6 +56,10 @@ public class SelectorImpl extends AbstractSelector
public SelectorImpl (SelectorProvider provider)
{
super (provider);
keys = new HashSet ();
selected = new HashSet ();
canceled = new HashSet ();
}
public Set keys ()
@@ -70,16 +74,48 @@ public class SelectorImpl extends AbstractSelector
public int select ()
{
return select (Long.MAX_VALUE);
return select (-1);
}
// private static native int java_do_select(int[] read, int[] write,
// int[] except, long timeout);
// A timeout value of -1 means block forever.
private static native int java_do_select (int[] read, int[] write,
int[] except, long timeout);
private static int java_do_select(int[] read, int[] write,
int[] except, long timeout)
private int[] getFDsAsArray (int ops)
{
return 0;
int[] result;
int counter = 0;
Iterator it = keys.iterator ();
// Count the number of file descriptors needed
while (it.hasNext ())
{
SelectionKeyImpl key = (SelectionKeyImpl) it.next ();
if ((key.interestOps () & ops) != 0)
{
counter++;
}
}
result = new int[counter];
counter = 0;
it = keys.iterator ();
// Fill the array with the file descriptors
while (it.hasNext ())
{
SelectionKeyImpl key = (SelectionKeyImpl) it.next ();
if ((key.interestOps () & ops) != 0)
{
result[counter] = key.fd;
counter++;
}
}
return result;
}
public int select (long timeout)
@@ -94,40 +130,79 @@ public class SelectorImpl extends AbstractSelector
return 0;
}
int[] read = new int[keys.size ()];
int[] write = new int[keys.size ()];
int[] except = new int[keys.size ()];
int i = 0;
int ret = 0;
deregisterCanceledKeys ();
// Set only keys with the needed interest ops into the arrays.
int[] read = getFDsAsArray (SelectionKey.OP_READ | SelectionKey.OP_ACCEPT);
int[] write = getFDsAsArray (SelectionKey.OP_WRITE | SelectionKey.OP_CONNECT);
int[] except = new int [0]; // FIXME: We dont need to check this yet
// Call the native select () on all file descriptors.
int anzahl = read.length + write.length + except.length;
ret = java_do_select (read, write, except, timeout);
Iterator it = keys.iterator ();
while (it.hasNext ())
{
SelectionKeyImpl k = (SelectionKeyImpl) it.next ();
read[i] = k.fd;
write[i] = k.fd;
except[i] = k.fd;
i++;
}
{
int ops = 0;
SelectionKeyImpl key = (SelectionKeyImpl) it.next ();
int ret = java_do_select (read, write, except, timeout);
i = 0;
it = keys.iterator ();
while (it.hasNext ())
{
SelectionKeyImpl k = (SelectionKeyImpl) it.next ();
if (read[i] != -1 ||
write[i] != -1 ||
except[i] != -1)
// If key is already selected retrieve old ready ops.
if (selected.contains (key))
{
add_selected (k);
ops = key.readyOps ();
}
i++;
}
// Set new ready read/accept ops
for (int i = 0; i < read.length; i++)
{
if (key.fd == read[i])
{
if (key.channel () instanceof ServerSocketChannelImpl)
{
ops = ops | SelectionKey.OP_ACCEPT;
}
else
{
ops = ops | SelectionKey.OP_READ;
}
}
}
// Set new ready write ops
for (int i = 0; i < write.length; i++)
{
if (key.fd == write[i])
{
ops = ops | SelectionKey.OP_WRITE;
// if (key.channel ().isConnected ())
// {
// ops = ops | SelectionKey.OP_WRITE;
// }
// else
// {
// ops = ops | SelectionKey.OP_CONNECT;
// }
}
}
// FIXME: We dont handle exceptional file descriptors yet.
// If key is not yet selected add it.
if (!selected.contains (key))
{
add_selected (key);
}
// Set new ready ops
key.readyOps (key.interestOps () & ops);
}
deregisterCanceledKeys ();
return ret;
}
@@ -143,25 +218,30 @@ public class SelectorImpl extends AbstractSelector
public void add (SelectionKeyImpl k)
{
if (keys == null)
keys = new HashSet ();
keys.add (k);
}
void add_selected (SelectionKeyImpl k)
{
if (selected == null)
selected = new HashSet ();
selected.add(k);
selected.add (k);
}
protected void implCloseSelector ()
{
closed = true;
}
private void deregisterCanceledKeys ()
{
Iterator it = canceled.iterator ();
while (it.hasNext ())
{
keys.remove ((SelectionKeyImpl) it.next ());
it.remove ();
}
}
protected SelectionKey register (SelectableChannel ch, int ops, Object att)
{
return register ((AbstractSelectableChannel) ch, ops, att);
@@ -176,6 +256,8 @@ public class SelectorImpl extends AbstractSelector
// FileChannelImpl fc = (FileChannelImpl) ch;
// SelectionKeyImpl impl = new SelectionKeyImpl (ch, this, fc.fd);
// keys.add (impl);
// impl.interestOps (ops);
// impl.attach (att);
// return impl;
// }
// else
@@ -185,13 +267,26 @@ public class SelectorImpl extends AbstractSelector
SocketChannelImpl sc = (SocketChannelImpl) ch;
SelectionKeyImpl impl = new SelectionKeyImpl (ch, this, sc.fd);
add (impl);
impl.interestOps (ops);
impl.attach (att);
return impl;
}
else if (ch instanceof DatagramChannelImpl)
{
DatagramChannelImpl dc = (DatagramChannelImpl) ch;
SelectionKeyImpl impl = new SelectionKeyImpl (ch, this, dc.fd);
add (impl);
impl.interestOps (ops);
impl.attach (att);
return impl;
}
else if (ch instanceof ServerSocketChannelImpl)
{
ServerSocketChannelImpl ssc = (ServerSocketChannelImpl) ch;
SelectionKeyImpl impl = new SelectionKeyImpl (ch, this, ssc.fd);
add (impl);
impl.interestOps (ops);
impl.attach (att);
return impl;
}
else