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*
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* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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package com.pdd.pop.ext.glassfish.grizzly.asyncqueue;
import com.pdd.pop.ext.glassfish.grizzly.*;
import com.pdd.pop.ext.glassfish.grizzly.nio.NIOConnection;
/**
* The {@link AsyncQueue}, which implements asynchronous write queue.
*
* @param the destination address type
*
* @author Alexey Stashok
* @author Ryan Lubke
*/
@SuppressWarnings("deprecation")
public interface AsyncQueueWriter
extends Writer, AsyncQueue {
/**
* Constant set via {@link #setMaxPendingBytesPerConnection(int)} means
* the async write queue size is unlimited.
*/
int UNLIMITED_SIZE = -1;
/**
* Constant set via {@link #setMaxPendingBytesPerConnection(int)} means
* the async write queue size will be configured automatically per
* {@link NIOConnection} depending on connections write buffer size.
*/
int AUTO_SIZE = -2;
/**
* Method writes the {@link Buffer} to the specific address.
*
*
* @param connection the {@link com.pdd.pop.ext.glassfish.grizzly.Connection} to write to
* @param dstAddress the destination address the {@link WritableMessage} will be
* sent to
* @param message the {@link WritableMessage}, from which the data will be written
* @param completionHandler {@link com.pdd.pop.ext.glassfish.grizzly.CompletionHandler},
* which will get notified, when write will be completed
* @param pushBackHandler {@link PushBackHandler}, which will be notified
* if message was accepted by transport write queue or refused
* @param cloner {@link MessageCloner}, which will be invoked by
* AsyncQueueWriter, if message could not be written to a
* channel directly and has to be put on a asynchronous queue
*
* @deprecated push back logic is deprecated
*/
void write(
Connection connection, L dstAddress,
WritableMessage message,
CompletionHandler> completionHandler,
PushBackHandler pushBackHandler,
MessageCloner cloner);
/**
* @param connection the {@link Connection} to test whether or not the
* specified number of bytes can be written to.
* @param size number of bytes to write.
* @return true if the queue has not exceeded it's maximum
* size in bytes of pending writes, otherwise false
*
* @since 2.2
* @deprecated the size parameter will be ignored, use {@link #canWrite(com.pdd.pop.ext.glassfish.grizzly.Connection)} instead.
*/
boolean canWrite(final Connection connection, int size);
/**
* Registers {@link WriteHandler}, which will be notified ones the
* {@link Connection} is able to accept more bytes to be written.
* Note: using this method from different threads simultaneously may lead
* to quick situation changes, so at time {@link WriteHandler} is called -
* the queue may become busy again.
*
* @param connection {@link Connection}
* @param writeHandler {@link WriteHandler} to be notified.
* @param size number of bytes queue has to be able to accept before notifying
* {@link WriteHandler}.
*
* @since 2.2
* @deprecated the size parameter will be ignored, use {@link #notifyWritePossible(com.pdd.pop.ext.glassfish.grizzly.Connection, com.pdd.pop.ext.glassfish.grizzly.WriteHandler) instead.
*/
void notifyWritePossible(final Connection connection,
final WriteHandler writeHandler, final int size);
/**
* Configures the maximum number of bytes pending to be written
* for a particular {@link Connection}.
*
* @param maxQueuedWrites maximum number of bytes that may be pending to be
* written to a particular {@link Connection}.
*/
void setMaxPendingBytesPerConnection(final int maxQueuedWrites);
/**
* @return the maximum number of bytes that may be pending to be written
* to a particular {@link Connection}. By default, this will be four
* times the size of the {@link java.net.Socket} send buffer size.
*/
int getMaxPendingBytesPerConnection();
/**
* Returns true, if async write queue is allowed to write buffer
* directly during write(...) method call, w/o adding buffer to the
* queue, or false otherwise.
*
* @return true, if async write queue is allowed to write buffer
* directly during write(...) method call, w/o adding buffer to the
* queue, or false otherwise.
*/
boolean isAllowDirectWrite();
/**
* Set true, if async write queue is allowed to write buffer
* directly during write(...) method call, w/o adding buffer to the
* queue, or false otherwise.
*
* @param isAllowDirectWrite true, if async write queue is allowed
* to write buffer directly during write(...) method call, w/o adding buffer
* to the queue, or false otherwise.
*/
void setAllowDirectWrite(final boolean isAllowDirectWrite);
}
