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DOC-14 Stateless Client : enhancing the synchronous writes so we don't need a thread local client for each thread

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This commit is contained in:
Rob Austin
2014-11-24 08:29:44 +00:00
parent 5fb243e301
commit a5fe252478
7 changed files with 92 additions and 21 deletions
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src/main/java/net/openhft/chronicle/map/TcpReplicator.java
+14 -3
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@@ -40,6 +40,8 @@ import java.util.concurrent.atomic.AtomicBoolean;
import static java.nio.channels.SelectionKey.*;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static net.openhft.chronicle.map.AbstractChannelReplicator.SIZE_OF_SIZE;
import static net.openhft.chronicle.map.AbstractChannelReplicator.SIZE_OF_TRANSACTIONID;
import static net.openhft.chronicle.map.StatelessChronicleMap.EventId.HEARTBEAT;
interface Work {
@@ -1252,12 +1254,16 @@ final class TcpReplicator extends AbstractChannelReplicator implements Closeable
*/
class StatelessServerConnector<K, V> {
public static final int TRANSACTION_ID_OFFSET = AbstractChannelReplicator.SIZE_OF_SIZE + 1;
public static final int TRANSACTION_ID_OFFSET = SIZE_OF_SIZE + 1;
public static final boolean MAP_SUPPORTS_BYTES = Boolean.valueOf(System.getProperty
("mapSupportsBytes"));
private static final Logger LOG = LoggerFactory.getLogger(StatelessServerConnector.class
.getName());
public static final StatelessChronicleMap.EventId[] VALUES = StatelessChronicleMap.EventId.values();
public static final int SIZE_OF_IS_EXCEPTION = 1;
public static final int HEADER_SIZE = SIZE_OF_SIZE + SIZE_OF_IS_EXCEPTION + SIZE_OF_TRANSACTIONID;
private final KeyValueSerializer<K, V> keyValueSerializer;
private final VanillaChronicleMap<K, ?, ?, V, ?, ?> map;
private double maxEntrySizeBytes;
@@ -1500,7 +1506,12 @@ class StatelessServerConnector<K, V> {
private Work sendException(Bytes writer, long sizeLocation, Throwable e) {
// move the position to ignore any bytes written so far
writer.position(sizeLocation + HEADER_SIZE);
writeException(writer, e);
writeSizeAndFlags(sizeLocation, true, writer);
return null;
}
@@ -1898,8 +1909,8 @@ class StatelessServerConnector<K, V> {
private void writeSizeAndFlags(long locationOfSize, boolean isException, Bytes out) {
long currentPosition = out.position();
final long size = out.position() - locationOfSize;
out.writeInt(locationOfSize, (int) size);
out.writeBoolean(locationOfSize + AbstractChannelReplicator.SIZE_OF_SIZE, isException);
out.writeInt(locationOfSize, (int) size); // size
out.writeBoolean(locationOfSize + SIZE_OF_SIZE, isException); // isException
out.position(currentPosition);
}