/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.tomcat.util.net;
import java.io.EOFException;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.SocketTimeoutException;
import java.nio.ByteBuffer;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantReadWriteLock.WriteLock;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.jni.Address;
import org.apache.tomcat.jni.Error;
import org.apache.tomcat.jni.File;
import org.apache.tomcat.jni.Library;
import org.apache.tomcat.jni.OS;
import org.apache.tomcat.jni.Poll;
import org.apache.tomcat.jni.Pool;
import org.apache.tomcat.jni.SSL;
import org.apache.tomcat.jni.SSLContext;
import org.apache.tomcat.jni.SSLContext.SNICallBack;
import org.apache.tomcat.jni.SSLSocket;
import org.apache.tomcat.jni.Sockaddr;
import org.apache.tomcat.jni.Socket;
import org.apache.tomcat.jni.Status;
import org.apache.tomcat.util.ExceptionUtils;
import org.apache.tomcat.util.buf.ByteBufferUtils;
import org.apache.tomcat.util.collections.SynchronizedStack;
import org.apache.tomcat.util.net.AbstractEndpoint.Handler.SocketState;
import org.apache.tomcat.util.net.Acceptor.AcceptorState;
import org.apache.tomcat.util.net.SSLHostConfig.Type;
import org.apache.tomcat.util.net.openssl.OpenSSLEngine;
/**
* APR tailored thread pool, providing the following services:
* <ul>
* <li>Socket acceptor thread</li>
* <li>Socket poller thread</li>
* <li>Sendfile thread</li>
* <li>Worker threads pool</li>
* </ul>
*
* When switching to Java 5, there's an opportunity to use the virtual
* machine's thread pool.
*
* @author Mladen Turk
* @author Remy Maucherat
*/
public class AprEndpoint extends AbstractEndpoint<Long,Long> implements SNICallBack {
// -------------------------------------------------------------- Constants
private static final Log log = LogFactory.getLog(AprEndpoint.class);
// ----------------------------------------------------------------- Fields
/**
* Root APR memory pool.
*/
protected long rootPool = 0;
/**
* Server socket "pointer".
*/
protected long serverSock = 0;
/**
* APR memory pool for the server socket.
*/
protected long serverSockPool = 0;
/**
* SSL context.
*/
protected long sslContext = 0;
private final Map<Long,AprSocketWrapper> connections = new ConcurrentHashMap<>();
// ------------------------------------------------------------ Constructor
public AprEndpoint() {
// Need to override the default for maxConnections to align it with what
// was pollerSize (before the two were merged)
setMaxConnections(8 * 1024);
}
// ------------------------------------------------------------- Properties
/**
* Defer accept.
*/
protected boolean deferAccept = true;
public void setDeferAccept(boolean deferAccept) { this.deferAccept = deferAccept; }
@Override
public boolean getDeferAccept() { return deferAccept; }
private boolean ipv6v6only = false;
public void setIpv6v6only(boolean ipv6v6only) { this.ipv6v6only = ipv6v6only; }
public boolean getIpv6v6only() { return ipv6v6only; }
/**
* Size of the sendfile (= concurrent files which can be served).
*/
protected int sendfileSize = 1 * 1024;
public void setSendfileSize(int sendfileSize) { this.sendfileSize = sendfileSize; }
public int getSendfileSize() { return sendfileSize; }
/**
* Poll interval, in microseconds. The smaller the value, the more CPU the poller
* will use, but the more responsive to activity it will be.
*/
protected int pollTime = 2000;
public int getPollTime() { return pollTime; }
public void setPollTime(int pollTime) { if (pollTime > 0) { this.pollTime = pollTime; } }
/*
* When the endpoint is created and configured, the APR library will not
* have been initialised. This flag is used to determine if the default
* value of useSendFile should be changed if the APR library indicates it
* supports send file once it has been initialised. If useSendFile is set
* by configuration, that configuration will always take priority.
*/
private boolean useSendFileSet = false;
@Override
public void setUseSendfile(boolean useSendfile) {
useSendFileSet = true;
super.setUseSendfile(useSendfile);
}
/*
* For internal use to avoid setting the useSendFileSet flag
*/
private void setUseSendfileInternal(boolean useSendfile) {
super.setUseSendfile(useSendfile);
}
/**
* The socket poller.
*/
protected Poller poller = null;
public Poller getPoller() {
return poller;
}
/**
* The static file sender.
*/
protected Sendfile sendfile = null;
public Sendfile getSendfile() {
return sendfile;
}
@Override
protected Type getSslConfigType() {
return SSLHostConfig.Type.OPENSSL;
}
@Override
public InetSocketAddress getLocalAddress() throws IOException {
long s = serverSock;
if (s == 0) {
return null;
} else {
long sa;
try {
sa = Address.get(Socket.APR_LOCAL, s);
} catch (IOException ioe) {
// re-throw
throw ioe;
} catch (Exception e) {
// wrap
throw new IOException(e);
}
Sockaddr addr = Address.getInfo(sa);
if (addr.hostname == null) {
// any local address
if (addr.family == Socket.APR_INET6) {
return new InetSocketAddress("::", addr.port);
} else {
return new InetSocketAddress("0.0.0.0", addr.port);
}
}
return new InetSocketAddress(addr.hostname, addr.port);
}
}
/**
* This endpoint does not support <code>-1</code> for unlimited connections,
* nor does it support setting this attribute while the endpoint is running.
*
* {@inheritDoc}
*/
@Override
public void setMaxConnections(int maxConnections) {
if (maxConnections == -1) {
log.warn(sm.getString("endpoint.apr.maxConnections.unlimited",
Integer.valueOf(getMaxConnections())));
return;
}
if (running) {
log.warn(sm.getString("endpoint.apr.maxConnections.running",
Integer.valueOf(getMaxConnections())));
return;
}
super.setMaxConnections(maxConnections);
}
// --------------------------------------------------------- Public Methods
/**
* Obtain the number of kept alive sockets.
*
* @return The number of open sockets currently managed by the Poller
*/
public int getKeepAliveCount() {
if (poller == null) {
return 0;
}
return poller.getConnectionCount();
}
/**
* Obtain the number of sendfile sockets.
*
* @return The number of sockets currently managed by the Sendfile poller.
*/
public int getSendfileCount() {
if (sendfile == null) {
return 0;
}
return sendfile.getSendfileCount();
}
// ----------------------------------------------- Public Lifecycle Methods
/**
* Initialize the endpoint.
*/
@Override
public void bind() throws Exception {
// Create the root APR memory pool
try {
rootPool = Pool.create(0);
} catch (UnsatisfiedLinkError e) {
throw new Exception(sm.getString("endpoint.init.notavail"));
}
// Create the pool for the server socket
serverSockPool = Pool.create(rootPool);
// Create the APR address that will be bound
String addressStr = null;
if (getAddress() != null) {
addressStr = getAddress().getHostAddress();
}
int family = Socket.APR_INET;
if (Library.APR_HAVE_IPV6) {
if (addressStr == null) {
if (!OS.IS_BSD) {
family = Socket.APR_UNSPEC;
}
} else if (addressStr.indexOf(':') >= 0) {
family = Socket.APR_UNSPEC;
}
}
long inetAddress = Address.info(addressStr, family,
getPort(), 0, rootPool);
// Create the APR server socket
serverSock = Socket.create(Address.getInfo(inetAddress).family,
Socket.SOCK_STREAM,
Socket.APR_PROTO_TCP, rootPool);
if (OS.IS_UNIX) {
Socket.optSet(serverSock, Socket.APR_SO_REUSEADDR, 1);
}
if (Library.APR_HAVE_IPV6) {
if (getIpv6v6only()) {
Socket.optSet(serverSock, Socket.APR_IPV6_V6ONLY, 1);
} else {
Socket.optSet(serverSock, Socket.APR_IPV6_V6ONLY, 0);
}
}
// Deal with the firewalls that tend to drop the inactive sockets
Socket.optSet(serverSock, Socket.APR_SO_KEEPALIVE, 1);
// Bind the server socket
int ret = Socket.bind(serverSock, inetAddress);
if (ret != 0) {
throw new Exception(sm.getString("endpoint.init.bind", "" + ret, Error.strerror(ret)));
}
// Start listening on the server socket
ret = Socket.listen(serverSock, getAcceptCount());
if (ret != 0) {
throw new Exception(sm.getString("endpoint.init.listen", "" + ret, Error.strerror(ret)));
}
if (OS.IS_WIN32 || OS.IS_WIN64) {
// On Windows set the reuseaddr flag after the bind/listen
Socket.optSet(serverSock, Socket.APR_SO_REUSEADDR, 1);
}
// Enable Sendfile by default if it has not been configured but usage on
// systems which don't support it cause major problems
if (!useSendFileSet) {
setUseSendfileInternal(Library.APR_HAS_SENDFILE);
} else if (getUseSendfile() && !Library.APR_HAS_SENDFILE) {
setUseSendfileInternal(false);
}
// Initialize thread count default for acceptor
if (acceptorThreadCount == 0) {
// FIXME: Doesn't seem to work that well with multiple accept threads
acceptorThreadCount = 1;
}
// Delay accepting of new connections until data is available
// Only Linux kernels 2.4 + have that implemented
// on other platforms this call is noop and will return APR_ENOTIMPL.
if (deferAccept) {
if (Socket.optSet(serverSock, Socket.APR_TCP_DEFER_ACCEPT, 1) == Status.APR_ENOTIMPL) {
deferAccept = false;
}
}
// Initialize SSL if needed
if (isSSLEnabled()) {
for (SSLHostConfig sslHostConfig : sslHostConfigs.values()) {
createSSLContext(sslHostConfig);
}
SSLHostConfig defaultSSLHostConfig = sslHostConfigs.get(getDefaultSSLHostConfigName());
if (defaultSSLHostConfig == null) {
throw new IllegalArgumentException(sm.getString("endpoint.noSslHostConfig",
getDefaultSSLHostConfigName(), getName()));
}
Long defaultSSLContext = defaultSSLHostConfig.getOpenSslContext();
sslContext = defaultSSLContext.longValue();
SSLContext.registerDefault(defaultSSLContext, this);
}
}
@Override
protected void createSSLContext(SSLHostConfig sslHostConfig) throws Exception {
Set<SSLHostConfigCertificate> certificates = sslHostConfig.getCertificates(true);
boolean firstCertificate = true;
for (SSLHostConfigCertificate certificate : certificates) {
if (SSLHostConfig.adjustRelativePath(certificate.getCertificateFile()) == null) {
// This is required
throw new Exception(sm.getString("endpoint.apr.noSslCertFile"));
}
if (firstCertificate) {
// TODO: Duplicates code in SSLUtilBase. Consider
// refactoring to reduce duplication
firstCertificate = false;
// Configure the enabled protocols
List<String> enabledProtocols = SSLUtilBase.getEnabled("protocols", log,
true, sslHostConfig.getProtocols(),
OpenSSLEngine.IMPLEMENTED_PROTOCOLS_SET);
sslHostConfig.setEnabledProtocols(
enabledProtocols.toArray(new String[enabledProtocols.size()]));
// Configure the enabled ciphers
List<String> enabledCiphers = SSLUtilBase.getEnabled("ciphers", log,
false, sslHostConfig.getJsseCipherNames(),
OpenSSLEngine.AVAILABLE_CIPHER_SUITES);
sslHostConfig.setEnabledCiphers(
enabledCiphers.toArray(new String[enabledCiphers.size()]));
}
}
if (certificates.size() > 2) {
// TODO: Can this limitation be removed?
throw new Exception(sm.getString("endpoint.apr.tooManyCertFiles"));
}
// SSL protocol
int value = SSL.SSL_PROTOCOL_NONE;
if (sslHostConfig.getProtocols().size() == 0) {
// Native fallback used if protocols=""
value = SSL.SSL_PROTOCOL_ALL;
} else {
for (String protocol : sslHostConfig.getEnabledProtocols()) {
if (Constants.SSL_PROTO_SSLv2Hello.equalsIgnoreCase(protocol)) {
// NO-OP. OpenSSL always supports SSLv2Hello
} else if (Constants.SSL_PROTO_SSLv2.equalsIgnoreCase(protocol)) {
value |= SSL.SSL_PROTOCOL_SSLV2;
} else if (Constants.SSL_PROTO_SSLv3.equalsIgnoreCase(protocol)) {
value |= SSL.SSL_PROTOCOL_SSLV3;
} else if (Constants.SSL_PROTO_TLSv1.equalsIgnoreCase(protocol)) {
value |= SSL.SSL_PROTOCOL_TLSV1;
} else if (Constants.SSL_PROTO_TLSv1_1.equalsIgnoreCase(protocol)) {
value |= SSL.SSL_PROTOCOL_TLSV1_1;
} else if (Constants.SSL_PROTO_TLSv1_2.equalsIgnoreCase(protocol)) {
value |= SSL.SSL_PROTOCOL_TLSV1_2;
} else {
// Should not happen since filtering to build
// enabled protocols removes invalid values.
throw new Exception(sm.getString(
"endpoint.apr.invalidSslProtocol", protocol));
}
}
}
// Create SSL Context
long ctx = 0;
try {
ctx = SSLContext.make(rootPool, value, SSL.SSL_MODE_SERVER);
} catch (Exception e) {
// If the sslEngine is disabled on the AprLifecycleListener
// there will be an Exception here but there is no way to check
// the AprLifecycleListener settings from here
throw new Exception(
sm.getString("endpoint.apr.failSslContextMake"), e);
}
if (sslHostConfig.getInsecureRenegotiation()) {
SSLContext.setOptions(ctx, SSL.SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION);
} else {
SSLContext.clearOptions(ctx, SSL.SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION);
}
// Use server's preference order for ciphers (rather than client's)
if (sslHostConfig.getHonorCipherOrder()) {
SSLContext.setOptions(ctx, SSL.SSL_OP_CIPHER_SERVER_PREFERENCE);
} else {
SSLContext.clearOptions(ctx, SSL.SSL_OP_CIPHER_SERVER_PREFERENCE);
}
// Disable compression if requested
if (sslHostConfig.getDisableCompression()) {
SSLContext.setOptions(ctx, SSL.SSL_OP_NO_COMPRESSION);
} else {
SSLContext.clearOptions(ctx, SSL.SSL_OP_NO_COMPRESSION);
}
// Disable TLS Session Tickets (RFC4507) to protect perfect forward secrecy
if (sslHostConfig.getDisableSessionTickets()) {
SSLContext.setOptions(ctx, SSL.SSL_OP_NO_TICKET);
} else {
SSLContext.clearOptions(ctx, SSL.SSL_OP_NO_TICKET);
}
// List the ciphers that the client is permitted to negotiate
SSLContext.setCipherSuite(ctx, sslHostConfig.getCiphers());
// Load Server key and certificate
// TODO: Confirm assumption that idx is not specific to
// key/certificate type
int idx = 0;
for (SSLHostConfigCertificate certificate : sslHostConfig.getCertificates(true)) {
SSLContext.setCertificate(ctx,
SSLHostConfig.adjustRelativePath(certificate.getCertificateFile()),
SSLHostConfig.adjustRelativePath(certificate.getCertificateKeyFile()),
certificate.getCertificateKeyPassword(), idx++);
// Set certificate chain file
SSLContext.setCertificateChainFile(ctx,
SSLHostConfig.adjustRelativePath(certificate.getCertificateChainFile()), false);
}
// Support Client Certificates
SSLContext.setCACertificate(ctx,
SSLHostConfig.adjustRelativePath(sslHostConfig.getCaCertificateFile()),
SSLHostConfig.adjustRelativePath(sslHostConfig.getCaCertificatePath()));
// Set revocation
SSLContext.setCARevocation(ctx,
SSLHostConfig.adjustRelativePath(
sslHostConfig.getCertificateRevocationListFile()),
SSLHostConfig.adjustRelativePath(
sslHostConfig.getCertificateRevocationListPath()));
// Client certificate verification
switch (sslHostConfig.getCertificateVerification()) {
case NONE:
value = SSL.SSL_CVERIFY_NONE;
break;
case OPTIONAL:
value = SSL.SSL_CVERIFY_OPTIONAL;
break;
case OPTIONAL_NO_CA:
value = SSL.SSL_CVERIFY_OPTIONAL_NO_CA;
break;
case REQUIRED:
value = SSL.SSL_CVERIFY_REQUIRE;
break;
}
SSLContext.setVerify(ctx, value, sslHostConfig.getCertificateVerificationDepth());
// For now, sendfile is not supported with SSL
if (getUseSendfile()) {
setUseSendfileInternal(false);
if (useSendFileSet) {
log.warn(sm.getString("endpoint.apr.noSendfileWithSSL"));
}
}
if (negotiableProtocols.size() > 0) {
List<String> protocols = new ArrayList<>();
protocols.addAll(negotiableProtocols);
protocols.add("http/1.1");
String[] protocolsArray = protocols.toArray(new String[0]);
SSLContext.setAlpnProtos(ctx, protocolsArray, SSL.SSL_SELECTOR_FAILURE_NO_ADVERTISE);
}
sslHostConfig.setOpenSslContext(Long.valueOf(ctx));
}
@Override
protected void releaseSSLContext(SSLHostConfig sslHostConfig) {
Long ctx = sslHostConfig.getOpenSslContext();
if (ctx != null) {
SSLContext.free(ctx.longValue());
sslHostConfig.setOpenSslContext(null);
}
}
@Override
public long getSslContext(String sniHostName) {
SSLHostConfig sslHostConfig = getSSLHostConfig(sniHostName);
Long ctx = sslHostConfig.getOpenSslContext();
if (ctx != null) {
return ctx.longValue();
}
// Default
return 0;
}
@Override
public boolean isAlpnSupported() {
// The APR/native connector always supports ALPN if TLS is in use
// because OpenSSL supports ALPN. Therefore, this is equivalent to
// testing of SSL is enabled.
return isSSLEnabled();
}
/**
* Start the APR endpoint, creating acceptor, poller and sendfile threads.
*/
@Override
public void startInternal() throws Exception {
if (!running) {
running = true;
paused = false;
processorCache = new SynchronizedStack<>(SynchronizedStack.DEFAULT_SIZE,
socketProperties.getProcessorCache());
// Create worker collection
if (getExecutor() == null) {
createExecutor();
}
initializeConnectionLatch();
// Start poller thread
poller = new Poller();
poller.init();
Thread pollerThread = new Thread(poller, getName() + "-Poller");
pollerThread.setPriority(threadPriority);
pollerThread.setDaemon(true);
pollerThread.start();
// Start sendfile thread
if (getUseSendfile()) {
sendfile = new Sendfile();
sendfile.init();
Thread sendfileThread =
new Thread(sendfile, getName() + "-Sendfile");
sendfileThread.setPriority(threadPriority);
sendfileThread.setDaemon(true);
sendfileThread.start();
}
startAcceptorThreads();
}
}
/**
* Stop the endpoint. This will cause all processing threads to stop.
*/
@Override
public void stopInternal() {
if (!paused) {
pause();
}
if (running) {
running = false;
poller.stop();
for (SocketWrapperBase<Long> socketWrapper : connections.values()) {
try {
socketWrapper.close();
} catch (IOException e) {
// Ignore
}
}
for (Acceptor<Long> acceptor : acceptors) {
long waitLeft = 10000;
while (waitLeft > 0 &&
acceptor.getState() != AcceptorState.ENDED &&
serverSock != 0) {
try {
Thread.sleep(50);
} catch (InterruptedException e) {
// Ignore
}
waitLeft -= 50;
}
if (waitLeft == 0) {
log.warn(sm.getString("endpoint.warn.unlockAcceptorFailed",
acceptor.getThreadName()));
// If the Acceptor is still running force
// the hard socket close.
if (serverSock != 0) {
Socket.shutdown(serverSock, Socket.APR_SHUTDOWN_READ);
serverSock = 0;
}
}
}
try {
poller.destroy();
} catch (Exception e) {
// Ignore
}
poller = null;
connections.clear();
if (getUseSendfile()) {
try {
sendfile.destroy();
} catch (Exception e) {
// Ignore
}
sendfile = null;
}
processorCache.clear();
}
shutdownExecutor();
}
/**
* Deallocate APR memory pools, and close server socket.
*/
@Override
public void unbind() throws Exception {
if (running) {
stop();
}
// Destroy pool if it was initialised
if (serverSockPool != 0) {
Pool.destroy(serverSockPool);
serverSockPool = 0;
}
// Close server socket if it was initialised
if (serverSock != 0) {
Socket.close(serverSock);
serverSock = 0;
}
if (sslContext != 0) {
Long ctx = Long.valueOf(sslContext);
SSLContext.unregisterDefault(ctx);
for (SSLHostConfig sslHostConfig : sslHostConfigs.values()) {
sslHostConfig.setOpenSslContext(null);
}
sslContext = 0;
}
// Close all APR memory pools and resources if initialised
if (rootPool != 0) {
Pool.destroy(rootPool);
rootPool = 0;
}
getHandler().recycle();
}
// ------------------------------------------------------ Protected Methods
/**
* Process the specified connection.
* @param socketWrapper The socket wrapper
* @return <code>true</code> if the socket was correctly configured
* and processing may continue, <code>false</code> if the socket needs to be
* close immediately
*/
protected boolean setSocketOptions(SocketWrapperBase<Long> socketWrapper) {
long socket = socketWrapper.getSocket().longValue();
// Process the connection
int step = 1;
try {
// 1: Set socket options: timeout, linger, etc
if (socketProperties.getSoLingerOn() && socketProperties.getSoLingerTime() >= 0)
Socket.optSet(socket, Socket.APR_SO_LINGER, socketProperties.getSoLingerTime());
if (socketProperties.getTcpNoDelay())
Socket.optSet(socket, Socket.APR_TCP_NODELAY, (socketProperties.getTcpNoDelay() ? 1 : 0));
Socket.timeoutSet(socket, socketProperties.getSoTimeout() * 1000);
// 2: SSL handshake
step = 2;
if (sslContext != 0) {
SSLSocket.attach(sslContext, socket);
if (SSLSocket.handshake(socket) != 0) {
if (log.isDebugEnabled()) {
log.debug(sm.getString("endpoint.err.handshake") + ": " + SSL.getLastError());
}
return false;
}
if (negotiableProtocols.size() > 0) {
byte[] negotiated = new byte[256];
int len = SSLSocket.getALPN(socket, negotiated);
String negotiatedProtocol =
new String(negotiated, 0, len, StandardCharsets.UTF_8);
if (negotiatedProtocol.length() > 0) {
socketWrapper.setNegotiatedProtocol(negotiatedProtocol);
if (log.isDebugEnabled()) {
log.debug(sm.getString("endpoint.alpn.negotiated", negotiatedProtocol));
}
}
}
}
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
if (log.isDebugEnabled()) {
if (step == 2) {
log.debug(sm.getString("endpoint.err.handshake"), t);
} else {
log.debug(sm.getString("endpoint.err.unexpected"), t);
}
}
// Tell to close the socket
return false;
}
return true;
}
/**
* Allocate a new poller of the specified size.
* @param size The size
* @param pool The pool from which the poller will be allocated
* @param timeout The timeout
* @return the poller pointer
*/
protected long allocatePoller(int size, long pool, int timeout) {
try {
return Poll.create(size, pool, 0, timeout * 1000);
} catch (Error e) {
if (Status.APR_STATUS_IS_EINVAL(e.getError())) {
log.info(sm.getString("endpoint.poll.limitedpollsize", "" + size));
return 0;
} else {
log.error(sm.getString("endpoint.poll.initfail"), e);
return -1;
}
}
}
/**
* Process given socket. This is called when the socket has been
* accepted.
* @param socket The socket
* @return <code>true</code> if the socket was correctly configured
* and processing may continue, <code>false</code> if the socket needs to be
* close immediately
*/
@Override
protected boolean setSocketOptions(Long socket) {
try {
// During shutdown, executor may be null - avoid NPE
if (running) {
if (log.isDebugEnabled()) {
log.debug(sm.getString("endpoint.debug.socket", socket));
}
AprSocketWrapper wrapper = new AprSocketWrapper(socket, this);
wrapper.setKeepAliveLeft(getMaxKeepAliveRequests());
wrapper.setSecure(isSSLEnabled());
wrapper.setReadTimeout(getConnectionTimeout());
wrapper.setWriteTimeout(getConnectionTimeout());
connections.put(socket, wrapper);
getExecutor().execute(new SocketWithOptionsProcessor(wrapper));
}
} catch (RejectedExecutionException x) {
log.warn("Socket processing request was rejected for:"+socket,x);
return false;
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
// This means we got an OOM or similar creating a thread, or that
// the pool and its queue are full
log.error(sm.getString("endpoint.process.fail"), t);
return false;
}
return true;
}
@Override
protected Long serverSocketAccept() throws Exception {
long socket = Socket.accept(serverSock);
if (log.isDebugEnabled()) {
long sa = Address.get(Socket.APR_REMOTE, socket);
Sockaddr addr = Address.getInfo(sa);
log.debug(sm.getString("endpoint.apr.remoteport",
Long.valueOf(socket),
Long.valueOf(addr.port)));
}
return Long.valueOf(socket);
}
/**
* Process the given socket. Typically keep alive or upgraded protocol.
*
* @param socket The socket to process
* @param event The event to process
*
* @return <code>true</code> if the processing completed normally otherwise
* <code>false</code> which indicates an error occurred and that the
* socket should be closed
*/
protected boolean processSocket(long socket, SocketEvent event) {
SocketWrapperBase<Long> socketWrapper = connections.get(Long.valueOf(socket));
return processSocket(socketWrapper, event, true);
}
@Override
protected SocketProcessorBase<Long> createSocketProcessor(
SocketWrapperBase<Long> socketWrapper, SocketEvent event) {
return new SocketProcessor(socketWrapper, event);
}
@Override
protected void closeSocket(Long socket) {
closeSocket(socket.longValue());
}
private void closeSocket(long socket) {
// Once this is called, the mapping from socket to wrapper will no
// longer be required.
SocketWrapperBase<Long> wrapper = connections.remove(Long.valueOf(socket));
if (wrapper != null) {
// Cast to avoid having to catch an IOE that is never thrown.
((AprSocketWrapper) wrapper).close();
}
}
/*
* This method should only be called if there is no chance that the socket
* is currently being used by the Poller. It is generally a bad idea to call
* this directly from a known error condition.
*/
@Override
protected void destroySocket(Long socket) {
destroySocket(socket.longValue());
}
/*
* This method should only be called if there is no chance that the socket
* is currently being used by the Poller. It is generally a bad idea to call
* this directly from a known error condition.
*/
private void destroySocket(long socket) {
connections.remove(Long.valueOf(socket));
if (log.isDebugEnabled()) {
String msg = sm.getString("endpoint.debug.destroySocket",
Long.valueOf(socket));
if (log.isTraceEnabled()) {
log.trace(msg, new Exception());
} else {
log.debug(msg);
}
}
// Be VERY careful if you call this method directly. If it is called
// twice for the same socket the JVM will core. Currently this is only
// called from Poller.closePollset() to ensure kept alive connections
// are closed when calling stop() followed by start().
if (socket != 0) {
Socket.destroy(socket);
countDownConnection();
}
}
@Override
protected Log getLog() {
return log;
}
// -------------------------------------------------- SocketInfo Inner Class
public static class SocketInfo {
public long socket;
public long timeout;
public int flags;
public boolean read() {
return (flags & Poll.APR_POLLIN) == Poll.APR_POLLIN;
}
public boolean write() {
return (flags & Poll.APR_POLLOUT) == Poll.APR_POLLOUT;
}
public static int merge(int flag1, int flag2) {
return ((flag1 & Poll.APR_POLLIN) | (flag2 & Poll.APR_POLLIN))
| ((flag1 & Poll.APR_POLLOUT) | (flag2 & Poll.APR_POLLOUT));
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("Socket: [");
sb.append(socket);
sb.append("], timeout: [");
sb.append(timeout);
sb.append("], flags: [");
sb.append(flags);
return sb.toString();
}
}
// ---------------------------------------------- SocketTimeouts Inner Class
public static class SocketTimeouts {
protected int size;
protected long[] sockets;
protected long[] timeouts;
protected int pos = 0;
public SocketTimeouts(int size) {
this.size = 0;
sockets = new long[size];
timeouts = new long[size];
}
public void add(long socket, long timeout) {
sockets[size] = socket;
timeouts[size] = timeout;
size++;
}
/**
* Removes the specified socket from the poller.
*
* @param socket The socket to remove
*
* @return The configured timeout for the socket or zero if the socket
* was not in the list of socket timeouts
*/
public long remove(long socket) {
long result = 0;
for (int i = 0; i < size; i++) {
if (sockets[i] == socket) {
result = timeouts[i];
sockets[i] = sockets[size - 1];
timeouts[i] = timeouts[size - 1];
size--;
break;
}
}
return result;
}
public long check(long date) {
while (pos < size) {
if (date >= timeouts[pos]) {
long result = sockets[pos];
sockets[pos] = sockets[size - 1];
timeouts[pos] = timeouts[size - 1];
size--;
return result;
}
pos++;
}
pos = 0;
return 0;
}
}
// -------------------------------------------------- SocketList Inner Class
public static class SocketList {
protected volatile int size;
protected int pos;
protected long[] sockets;
protected long[] timeouts;
protected int[] flags;
protected SocketInfo info = new SocketInfo();
public SocketList(int size) {
this.size = 0;
pos = 0;
sockets = new long[size];
timeouts = new long[size];
flags = new int[size];
}
public int size() {
return this.size;
}
public SocketInfo get() {
if (pos == size) {
return null;
} else {
info.socket = sockets[pos];
info.timeout = timeouts[pos];
info.flags = flags[pos];
pos++;
return info;
}
}
public void clear() {
size = 0;
pos = 0;
}
public boolean add(long socket, long timeout, int flag) {
if (size == sockets.length) {
return false;
} else {
for (int i = 0; i < size; i++) {
if (sockets[i] == socket) {
flags[i] = SocketInfo.merge(flags[i], flag);
return true;
}
}
sockets[size] = socket;
timeouts[size] = timeout;
flags[size] = flag;
size++;
return true;
}
}
public boolean remove(long socket) {
for (int i = 0; i < size; i++) {
if (sockets[i] == socket) {
sockets[i] = sockets[size - 1];
timeouts[i] = timeouts[size - 1];
flags[size] = flags[size -1];
size--;
return true;
}
}
return false;
}
public void duplicate(SocketList copy) {
copy.size = size;
copy.pos = pos;
System.arraycopy(sockets, 0, copy.sockets, 0, size);
System.arraycopy(timeouts, 0, copy.timeouts, 0, size);
System.arraycopy(flags, 0, copy.flags, 0, size);
}
}
// ------------------------------------------------------ Poller Inner Class
public class Poller implements Runnable {
/**
* Pointers to the pollers.
*/
private long[] pollers = null;
/**
* Actual poller size.
*/
private int actualPollerSize = 0;
/**
* Amount of spots left in the poller.
*/
private int[] pollerSpace = null;
/**
* Amount of low level pollers in use by this poller.
*/
private int pollerCount;
/**
* Timeout value for the poll call.
*/
private int pollerTime;
/**
* Variable poller timeout that adjusts depending on how many poll sets
* are in use so that the total poll time across all poll sets remains
* equal to pollTime.
*/
private int nextPollerTime;
/**
* Root pool.
*/
private long pool = 0;
/**
* Socket descriptors.
*/
private long[] desc;
/**
* List of sockets to be added to the poller.
*/
private SocketList addList = null; // Modifications guarded by this
/**
* List of sockets to be closed.
*/
private SocketList closeList = null; // Modifications guarded by this
/**
* Structure used for storing timeouts.
*/
private SocketTimeouts timeouts = null;
/**
* Last run of maintain. Maintain will run approximately once every one
* second (may be slightly longer between runs).
*/
private long lastMaintain = System.currentTimeMillis();
/**
* The number of connections currently inside this Poller. The correct
* operation of the Poller depends on this figure being correct. If it
* is not, it is possible that the Poller will enter a wait loop where
* it waits for the next connection to be added to the Poller before it
* calls poll when it should still be polling existing connections.
* Although not necessary at the time of writing this comment, it has
* been implemented as an AtomicInteger to ensure that it remains
* thread-safe.
*/
private AtomicInteger connectionCount = new AtomicInteger(0);
public int getConnectionCount() { return connectionCount.get(); }
private volatile boolean pollerRunning = true;
/**
* Create the poller. With some versions of APR, the maximum poller size
* will be 62 (recompiling APR is necessary to remove this limitation).
*/
protected synchronized void init() {
pool = Pool.create(serverSockPool);
// Single poller by default
int defaultPollerSize = getMaxConnections();
if ((OS.IS_WIN32 || OS.IS_WIN64) && (defaultPollerSize > 1024)) {
// The maximum per poller to get reasonable performance is 1024
// Adjust poller size so that it won't reach the limit. This is
// a limitation of XP / Server 2003 that has been fixed in
// Vista / Server 2008 onwards.
actualPollerSize = 1024;
} else {
actualPollerSize = defaultPollerSize;
}
timeouts = new SocketTimeouts(defaultPollerSize);
// At the moment, setting the timeout is useless, but it could get
// used again as the normal poller could be faster using maintain.
// It might not be worth bothering though.
long pollset = allocatePoller(actualPollerSize, pool, -1);
if (pollset == 0 && actualPollerSize > 1024) {
actualPollerSize = 1024;
pollset = allocatePoller(actualPollerSize, pool, -1);
}
if (pollset == 0) {
actualPollerSize = 62;
pollset = allocatePoller(actualPollerSize, pool, -1);
}
pollerCount = defaultPollerSize / actualPollerSize;
pollerTime = pollTime / pollerCount;
nextPollerTime = pollerTime;
pollers = new long[pollerCount];
pollers[0] = pollset;
for (int i = 1; i < pollerCount; i++) {
pollers[i] = allocatePoller(actualPollerSize, pool, -1);
}
pollerSpace = new int[pollerCount];
for (int i = 0; i < pollerCount; i++) {
pollerSpace[i] = actualPollerSize;
}
/*
* x2 - One descriptor for the socket, one for the event(s).
* x2 - Some APR implementations return multiple events for the
* same socket as different entries. Each socket is registered
* for a maximum of two events (read and write) at any one
* time.
*
* Therefore size is actual poller size *4.
*/
desc = new long[actualPollerSize * 4];
connectionCount.set(0);
addList = new SocketList(defaultPollerSize);
closeList = new SocketList(defaultPollerSize);
}
/*
* This method is synchronized so that it is not possible for a socket
* to be added to the Poller's addList once this method has completed.
*/
protected synchronized void stop() {
pollerRunning = false;
}
/**
* Destroy the poller.
*/
protected synchronized void destroy() {
// Wait for pollerTime before doing anything, so that the poller
// threads exit, otherwise parallel destruction of sockets which are
// still in the poller can cause problems
try {
this.notify();
this.wait(pollerCount * pollTime / 1000);
} catch (InterruptedException e) {
// Ignore
}
// Close all sockets in the close queue
SocketInfo info = closeList.get();
while (info != null) {
// Make sure we aren't trying add the socket as well as close it
addList.remove(info.socket);
// Make sure the socket isn't in the poller before we close it
removeFromPoller(info.socket);
// Poller isn't running at this point so use destroySocket()
// directly
destroySocket(info.socket);
info = closeList.get();
}
closeList.clear();
// Close all sockets in the add queue
info = addList.get();
while (info != null) {
// Make sure the socket isn't in the poller before we close it
removeFromPoller(info.socket);
// Poller isn't running at this point so use destroySocket()
// directly
destroySocket(info.socket);
info = addList.get();
}
addList.clear();
// Close all sockets still in the poller
for (int i = 0; i < pollerCount; i++) {
int rv = Poll.pollset(pollers[i], desc);
if (rv > 0) {
for (int n = 0; n < rv; n++) {
destroySocket(desc[n*2+1]);
}
}
}
Pool.destroy(pool);
connectionCount.set(0);
}
/**
* Add specified socket and associated pool to the poller. The socket
* will be added to a temporary array, and polled first after a maximum
* amount of time equal to pollTime (in most cases, latency will be much
* lower, however). Note: If both read and write are false, the socket
* will only be checked for timeout; if the socket was already present
* in the poller, a callback event will be generated and the socket will
* be removed from the poller.
*
* @param socket to add to the poller
* @param timeout to use for this connection in milliseconds
* @param flags Events to poll for (Poll.APR_POLLIN and/or
* Poll.APR_POLLOUT)
*/
private void add(long socket, long timeout, int flags) {
if (log.isDebugEnabled()) {
String msg = sm.getString("endpoint.debug.pollerAdd",
Long.valueOf(socket), Long.valueOf(timeout),
Integer.valueOf(flags));
if (log.isTraceEnabled()) {
log.trace(msg, new Exception());
} else {
log.debug(msg);
}
}
if (timeout <= 0) {
// Always put a timeout in
timeout = Integer.MAX_VALUE;
}
synchronized (this) {
// Add socket to the list. Newly added sockets will wait
// at most for pollTime before being polled.
if (addList.add(socket, timeout, flags)) {
this.notify();
}
}
}
/**
* Add specified socket to one of the pollers. Must only be called from
* {@link Poller#run()}.
*/
private boolean addToPoller(long socket, int events) {
int rv = -1;
for (int i = 0; i < pollers.length; i++) {
if (pollerSpace[i] > 0) {
rv = Poll.add(pollers[i], socket, events);
if (rv == Status.APR_SUCCESS) {
pollerSpace[i]--;
connectionCount.incrementAndGet();
return true;
}
}
}
return false;
}
/*
* This is only called from the SocketWrapper to ensure that it is only
* called once per socket. Calling it more than once typically results
* in the JVM crash.
*/
private synchronized void close(long socket) {
closeList.add(socket, 0, 0);
this.notify();
}
/**
* Remove specified socket from the pollers. Must only be called from
* {@link Poller#run()}.
*/
private void removeFromPoller(long socket) {
if (log.isDebugEnabled()) {
log.debug(sm.getString("endpoint.debug.pollerRemove",
Long.valueOf(socket)));
}
int rv = -1;
for (int i = 0; i < pollers.length; i++) {
if (pollerSpace[i] < actualPollerSize) {
rv = Poll.remove(pollers[i], socket);
if (rv != Status.APR_NOTFOUND) {
pollerSpace[i]++;
connectionCount.decrementAndGet();
if (log.isDebugEnabled()) {
log.debug(sm.getString("endpoint.debug.pollerRemoved",
Long.valueOf(socket)));
}
break;
}
}
}
timeouts.remove(socket);
}
/**
* Timeout checks. Must only be called from {@link Poller#run()}.
*/
private synchronized void maintain() {
long date = System.currentTimeMillis();
// Maintain runs at most once every 1s, although it will likely get
// called more
if ((date - lastMaintain) < 1000L) {
return;
} else {
lastMaintain = date;
}
long socket = timeouts.check(date);
while (socket != 0) {
if (log.isDebugEnabled()) {
log.debug(sm.getString("endpoint.debug.socketTimeout",
Long.valueOf(socket)));
}
SocketWrapperBase<Long> socketWrapper = connections.get(Long.valueOf(socket));
socketWrapper.setError(new SocketTimeoutException());
processSocket(socketWrapper, SocketEvent.ERROR, true);
socket = timeouts.check(date);
}
}
/**
* Displays the list of sockets in the pollers.
*/
@Override
public String toString() {
StringBuffer buf = new StringBuffer();
buf.append("Poller");
long[] res = new long[actualPollerSize * 2];
for (int i = 0; i < pollers.length; i++) {
int count = Poll.pollset(pollers[i], res);
buf.append(" [ ");
for (int j = 0; j < count; j++) {
buf.append(desc[2*j+1]).append(" ");
}
buf.append("]");
}
return buf.toString();
}
/**
* The background thread that adds sockets to the Poller, checks the
* poller for triggered events and hands the associated socket off to an
* appropriate processor as events occur.
*/
@Override
public void run() {
SocketList localAddList = new SocketList(getMaxConnections());
SocketList localCloseList = new SocketList(getMaxConnections());
// Loop until we receive a shutdown command
while (pollerRunning) {
// Check timeouts if the poller is empty.
while (pollerRunning && connectionCount.get() < 1 &&
addList.size() < 1 && closeList.size() < 1) {
try {
if (getConnectionTimeout() > 0 && pollerRunning) {
maintain();
}
synchronized (this) {
// Make sure that no sockets have been placed in the
// addList or closeList since the check above.
// Without this check there could be a 10s pause
// with no processing since the notify() call in
// add()/close() would have no effect since it
// happened before this sync block was entered
if (addList.size() < 1 && closeList.size() < 1) {
this.wait(10000);
}
}
} catch (InterruptedException e) {
// Ignore
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
getLog().warn(sm.getString("endpoint.timeout.err"));
}
}
// Don't add or poll if the poller has been stopped
if (!pollerRunning) {
break;
}
try {
// Duplicate the add and remove lists so that the syncs are
// minimised
synchronized (this) {
if (closeList.size() > 0) {
// Duplicate to another list, so that the syncing is
// minimal
closeList.duplicate(localCloseList);
closeList.clear();
} else {
localCloseList.clear();
}
}
synchronized (this) {
if (addList.size() > 0) {
// Duplicate to another list, so that the syncing is
// minimal
addList.duplicate(localAddList);
addList.clear();
} else {
localAddList.clear();
}
}
// Remove sockets
if (localCloseList.size() > 0) {
SocketInfo info = localCloseList.get();
while (info != null) {
localAddList.remove(info.socket);
removeFromPoller(info.socket);
destroySocket(info.socket);
info = localCloseList.get();
}
}
// Add sockets which are waiting to the poller
if (localAddList.size() > 0) {
SocketInfo info = localAddList.get();
while (info != null) {
if (log.isDebugEnabled()) {
log.debug(sm.getString(
"endpoint.debug.pollerAddDo",
Long.valueOf(info.socket)));
}
timeouts.remove(info.socket);
AprSocketWrapper wrapper = connections.get(
Long.valueOf(info.socket));
if (wrapper == null) {
continue;
}
if (info.read() || info.write()) {
wrapper.pollerFlags = wrapper.pollerFlags |
(info.read() ? Poll.APR_POLLIN : 0) |
(info.write() ? Poll.APR_POLLOUT : 0);
// A socket can only be added to the poller
// once. Adding it twice will return an error
// which will close the socket. Therefore make
// sure the socket we are about to add isn't in
// the poller.
removeFromPoller(info.socket);
if (!addToPoller(info.socket, wrapper.pollerFlags)) {
closeSocket(info.socket);
} else {
timeouts.add(info.socket,
System.currentTimeMillis() +
info.timeout);
}
} else {
// Should never happen.
closeSocket(info.socket);
getLog().warn(sm.getString(
"endpoint.apr.pollAddInvalid", info));
}
info = localAddList.get();
}
}
// Poll for the specified interval
for (int i = 0; i < pollers.length; i++) {
// Flag to ask to reallocate the pool
boolean reset = false;
int rv = 0;
// Iterate on each pollers, but no need to poll empty pollers
if (pollerSpace[i] < actualPollerSize) {
rv = Poll.poll(pollers[i], nextPollerTime, desc, true);
// Reset the nextPollerTime
nextPollerTime = pollerTime;
} else {
// Skipping an empty poll set means skipping a wait
// time of pollerTime microseconds. If most of the
// poll sets are skipped then this loop will be
// tighter than expected which could lead to higher
// than expected CPU usage. Extending the
// nextPollerTime ensures that this loop always
// takes about the same time to execute.
nextPollerTime += pollerTime;
}
if (rv > 0) {
rv = mergeDescriptors(desc, rv);
pollerSpace[i] += rv;
connectionCount.addAndGet(-rv);
for (int n = 0; n < rv; n++) {
if (getLog().isDebugEnabled()) {
log.debug(sm.getString(
"endpoint.debug.pollerProcess",
Long.valueOf(desc[n*2+1]),
Long.valueOf(desc[n*2])));
}
long timeout = timeouts.remove(desc[n*2+1]);
AprSocketWrapper wrapper = connections.get(
Long.valueOf(desc[n*2+1]));
if (wrapper == null) {
// Socket was closed in another thread while still in
// the Poller but wasn't removed from the Poller before
// new data arrived.
continue;
}
wrapper.pollerFlags = wrapper.pollerFlags & ~((int) desc[n*2]);
// Check for failed sockets and hand this socket off to a worker
if (((desc[n*2] & Poll.APR_POLLHUP) == Poll.APR_POLLHUP)
|| ((desc[n*2] & Poll.APR_POLLERR) == Poll.APR_POLLERR)
|| ((desc[n*2] & Poll.APR_POLLNVAL) == Poll.APR_POLLNVAL)) {
// Need to trigger error handling. Poller may return error
// codes plus the flags it was waiting for or it may just
// return an error code. We could handle the error here but
// if we do, there will be no exception associated with the
// error in application code. By signalling read/write is
// possible, a read/write will be attempted, fail and that
// will trigger an exception the application will see.
// Check the return flags first, followed by what the socket
// was registered for
if ((desc[n*2] & Poll.APR_POLLIN) == Poll.APR_POLLIN) {
// Error probably occurred during a non-blocking read
if (!processSocket(desc[n*2+1], SocketEvent.OPEN_READ)) {
// Close socket and clear pool
closeSocket(desc[n*2+1]);
}
} else if ((desc[n*2] & Poll.APR_POLLOUT) == Poll.APR_POLLOUT) {
// Error probably occurred during a non-blocking write
if (!processSocket(desc[n*2+1], SocketEvent.OPEN_WRITE)) {
// Close socket and clear pool
closeSocket(desc[n*2+1]);
}
} else if ((wrapper.pollerFlags & Poll.APR_POLLIN) == Poll.APR_POLLIN) {
// Can't tell what was happening when the error occurred but the
// socket is registered for non-blocking read so use that
if (!processSocket(desc[n*2+1], SocketEvent.OPEN_READ)) {
// Close socket and clear pool
closeSocket(desc[n*2+1]);
}
} else if ((wrapper.pollerFlags & Poll.APR_POLLOUT) == Poll.APR_POLLOUT) {
// Can't tell what was happening when the error occurred but the
// socket is registered for non-blocking write so use that
if (!processSocket(desc[n*2+1], SocketEvent.OPEN_WRITE)) {
// Close socket and clear pool
closeSocket(desc[n*2+1]);
}
} else {
// Close socket and clear pool
closeSocket(desc[n*2+1]);
}
} else if (((desc[n*2] & Poll.APR_POLLIN) == Poll.APR_POLLIN)
|| ((desc[n*2] & Poll.APR_POLLOUT) == Poll.APR_POLLOUT)) {
boolean error = false;
if (((desc[n*2] & Poll.APR_POLLIN) == Poll.APR_POLLIN) &&
!processSocket(desc[n*2+1], SocketEvent.OPEN_READ)) {
error = true;
// Close socket and clear pool
closeSocket(desc[n*2+1]);
}
if (!error &&
((desc[n*2] & Poll.APR_POLLOUT) == Poll.APR_POLLOUT) &&
!processSocket(desc[n*2+1], SocketEvent.OPEN_WRITE)) {
// Close socket and clear pool
error = true;
closeSocket(desc[n*2+1]);
}
if (!error && wrapper.pollerFlags != 0) {
// If socket was registered for multiple events but
// only some of the occurred, re-register for the
// remaining events.
// timeout is the value of System.currentTimeMillis() that
// was set as the point that the socket will timeout. When
// adding to the poller, the timeout from now in
// milliseconds is required.
// So first, subtract the current timestamp
if (timeout > 0) {
timeout = timeout - System.currentTimeMillis();
}
// If the socket should have already expired by now,
// re-add it with a very short timeout
if (timeout <= 0) {
timeout = 1;
}
// Should be impossible but just in case since timeout will
// be cast to an int.
if (timeout > Integer.MAX_VALUE) {
timeout = Integer.MAX_VALUE;
}
add(desc[n*2+1], (int) timeout, wrapper.pollerFlags);
}
} else {
// Unknown event
getLog().warn(sm.getString(
"endpoint.apr.pollUnknownEvent",
Long.valueOf(desc[n*2])));
// Close socket and clear pool
closeSocket(desc[n*2+1]);
}
}
} else if (rv < 0) {
int errn = -rv;
// Any non timeup or interrupted error is critical
if ((errn != Status.TIMEUP) && (errn != Status.EINTR)) {
if (errn > Status.APR_OS_START_USERERR) {
errn -= Status.APR_OS_START_USERERR;
}
getLog().error(sm.getString(
"endpoint.apr.pollError",
Integer.valueOf(errn),
Error.strerror(errn)));
// Destroy and reallocate the poller
reset = true;
}
}
if (reset && pollerRunning) {
// Reallocate the current poller
int count = Poll.pollset(pollers[i], desc);
long newPoller = allocatePoller(actualPollerSize, pool, -1);
// Don't restore connections for now, since I have not tested it
pollerSpace[i] = actualPollerSize;
connectionCount.addAndGet(-count);
Poll.destroy(pollers[i]);
pollers[i] = newPoller;
}
}
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
getLog().warn(sm.getString("endpoint.poll.error"), t);
}
try {
// Process socket timeouts
if (getConnectionTimeout() > 0 && pollerRunning) {
// This works and uses only one timeout mechanism for everything, but the
// non event poller might be a bit faster by using the old maintain.
maintain();
}
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
getLog().warn(sm.getString("endpoint.timeout.err"), t);
}
}
synchronized (this) {
this.notifyAll();
}
}
private int mergeDescriptors(long[] desc, int startCount) {
/*
* https://bz.apache.org/bugzilla/show_bug.cgi?id=57653#c6 suggests
* this merging is only necessary on OSX and BSD.
*
* https://bz.apache.org/bugzilla/show_bug.cgi?id=56313 suggests the
* same, or a similar, issue is happening on Windows.
* Notes: Only the first startCount * 2 elements of the array
* are populated.
* The array is event, socket, event, socket etc.
*/
Map<Long,Long> merged = new HashMap<>(startCount);
for (int n = 0; n < startCount; n++) {
Long newValue = merged.merge(Long.valueOf(desc[2*n+1]), Long.valueOf(desc[2*n]),
(v1, v2) -> Long.valueOf(v1.longValue() | v2.longValue()));
if (log.isDebugEnabled()) {
if (newValue.longValue() != desc[2*n]) {
log.debug(sm.getString("endpoint.apr.pollMergeEvents",
Long.valueOf(desc[2*n+1]), Long.valueOf(desc[2*n]), newValue));
}
}
}
int i = 0;
for (Map.Entry<Long,Long> entry : merged.entrySet()) {
desc[i++] = entry.getValue().longValue();
desc[i++] = entry.getKey().longValue();
}
return merged.size();
}
}
// ----------------------------------------------- SendfileData Inner Class
/**
* SendfileData class.
*/
public static class SendfileData extends SendfileDataBase {
// File
protected long fd;
protected long fdpool;
// Socket and socket pool
protected long socket;
public SendfileData(String filename, long pos, long length) {
super(filename, pos, length);
}
}
// --------------------------------------------------- Sendfile Inner Class
public class Sendfile implements Runnable {
protected long sendfilePollset = 0;
protected long pool = 0;
protected long[] desc;
protected HashMap<Long, SendfileData> sendfileData;
protected int sendfileCount;
public int getSendfileCount() { return sendfileCount; }
protected ArrayList<SendfileData> addS;
private volatile boolean sendfileRunning = true;
/**
* Create the sendfile poller. With some versions of APR, the maximum
* poller size will be 62 (recompiling APR is necessary to remove this
* limitation).
*/
protected void init() {
pool = Pool.create(serverSockPool);
int size = sendfileSize;
if (size <= 0) {
size = (OS.IS_WIN32 || OS.IS_WIN64) ? (1 * 1024) : (16 * 1024);
}
sendfilePollset = allocatePoller(size, pool, getConnectionTimeout());
if (sendfilePollset == 0 && size > 1024) {
size = 1024;
sendfilePollset = allocatePoller(size, pool, getConnectionTimeout());
}
if (sendfilePollset == 0) {
size = 62;
sendfilePollset = allocatePoller(size, pool, getConnectionTimeout());
}
desc = new long[size * 2];
sendfileData = new HashMap<>(size);
addS = new ArrayList<>();
}
/**
* Destroy the poller.
*/
protected void destroy() {
sendfileRunning = false;
// Wait for polltime before doing anything, so that the poller threads
// exit, otherwise parallel destruction of sockets which are still
// in the poller can cause problems
try {
synchronized (this) {
this.notify();
this.wait(pollTime / 1000);
}
} catch (InterruptedException e) {
// Ignore
}
// Close any socket remaining in the add queue
for (int i = (addS.size() - 1); i >= 0; i--) {
SendfileData data = addS.get(i);
closeSocket(data.socket);
}
// Close all sockets still in the poller
int rv = Poll.pollset(sendfilePollset, desc);
if (rv > 0) {
for (int n = 0; n < rv; n++) {
closeSocket(desc[n*2+1]);
}
}
Pool.destroy(pool);
sendfileData.clear();
}
/**
* Add the sendfile data to the sendfile poller. Note that in most cases,
* the initial non blocking calls to sendfile will return right away, and
* will be handled asynchronously inside the kernel. As a result,
* the poller will never be used.
*
* @param data containing the reference to the data which should be snet
* @return true if all the data has been sent right away, and false
* otherwise
*/
public SendfileState add(SendfileData data) {
// Initialize fd from data given
try {
data.fdpool = Socket.pool(data.socket);
data.fd = File.open
(data.fileName, File.APR_FOPEN_READ
| File.APR_FOPEN_SENDFILE_ENABLED | File.APR_FOPEN_BINARY,
0, data.fdpool);
// Set the socket to nonblocking mode
Socket.timeoutSet(data.socket, 0);
while (true) {
long nw = Socket.sendfilen(data.socket, data.fd,
data.pos, data.length, 0);
if (nw < 0) {
if (!(-nw == Status.EAGAIN)) {
Pool.destroy(data.fdpool);
data.socket = 0;
return SendfileState.ERROR;
} else {
// Break the loop and add the socket to poller.
break;
}
} else {
data.pos += nw;
data.length -= nw;
if (data.length == 0) {
// Entire file has been sent
Pool.destroy(data.fdpool);
// Set back socket to blocking mode
Socket.timeoutSet(data.socket, getConnectionTimeout() * 1000);
return SendfileState.DONE;
}
}
}
} catch (Exception e) {
log.warn(sm.getString("endpoint.sendfile.error"), e);
return SendfileState.ERROR;
}
// Add socket to the list. Newly added sockets will wait
// at most for pollTime before being polled
synchronized (this) {
addS.add(data);
this.notify();
}
return SendfileState.PENDING;
}
/**
* Remove socket from the poller.
*
* @param data the sendfile data which should be removed
*/
protected void remove(SendfileData data) {
int rv = Poll.remove(sendfilePollset, data.socket);
if (rv == Status.APR_SUCCESS) {
sendfileCount--;
}
sendfileData.remove(Long.valueOf(data.socket));
}
/**
* The background thread that listens for incoming TCP/IP connections
* and hands them off to an appropriate processor.
*/
@Override
public void run() {
long maintainTime = 0;
// Loop until we receive a shutdown command
while (sendfileRunning) {
// Loop if endpoint is paused
while (sendfileRunning && paused) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// Ignore
}
}
// Loop if poller is empty
while (sendfileRunning && sendfileCount < 1 && addS.size() < 1) {
// Reset maintain time.
maintainTime = 0;
try {
synchronized (this) {
this.wait();
}
} catch (InterruptedException e) {
// Ignore
}
}
// Don't add or poll if the poller has been stopped
if (!sendfileRunning) {
break;
}
try {
// Add socket to the poller
if (addS.size() > 0) {
synchronized (this) {
for (int i = (addS.size() - 1); i >= 0; i--) {
SendfileData data = addS.get(i);
int rv = Poll.add(sendfilePollset, data.socket, Poll.APR_POLLOUT);
if (rv == Status.APR_SUCCESS) {
sendfileData.put(Long.valueOf(data.socket), data);
sendfileCount++;
} else {
getLog().warn(sm.getString(
"endpoint.sendfile.addfail",
Integer.valueOf(rv),
Error.strerror(rv)));
// Can't do anything: close the socket right away
closeSocket(data.socket);
}
}
addS.clear();
}
}
maintainTime += pollTime;
// Pool for the specified interval
int rv = Poll.poll(sendfilePollset, pollTime, desc, false);
if (rv > 0) {
for (int n = 0; n < rv; n++) {
// Get the sendfile state
SendfileData state =
sendfileData.get(Long.valueOf(desc[n*2+1]));
// Problem events
if (((desc[n*2] & Poll.APR_POLLHUP) == Poll.APR_POLLHUP)
|| ((desc[n*2] & Poll.APR_POLLERR) == Poll.APR_POLLERR)) {
// Close socket and clear pool
remove(state);
// Destroy file descriptor pool, which should close the file
// Close the socket, as the response would be incomplete
closeSocket(state.socket);
continue;
}
// Write some data using sendfile
long nw = Socket.sendfilen(state.socket, state.fd,
state.pos,
state.length, 0);
if (nw < 0) {
// Close socket and clear pool
remove(state);
// Close the socket, as the response would be incomplete
// This will close the file too.
closeSocket(state.socket);
continue;
}
state.pos += nw;
state.length -= nw;
if (state.length == 0) {
remove(state);
switch (state.keepAliveState) {
case NONE: {
// Close the socket since this is
// the end of the not keep-alive request.
closeSocket(state.socket);
break;
}
case PIPELINED: {
// Destroy file descriptor pool, which should close the file
Pool.destroy(state.fdpool);
Socket.timeoutSet(state.socket, getConnectionTimeout() * 1000);
// Process the pipelined request data
if (!processSocket(state.socket, SocketEvent.OPEN_READ)) {
closeSocket(state.socket);
}
break;
}
case OPEN: {
// Destroy file descriptor pool, which should close the file
Pool.destroy(state.fdpool);
Socket.timeoutSet(state.socket, getConnectionTimeout() * 1000);
// Put the socket back in the poller for
// processing of further requests
getPoller().add(state.socket, getKeepAliveTimeout(),
Poll.APR_POLLIN);
break;
}
}
}
}
} else if (rv < 0) {
int errn = -rv;
/* Any non timeup or interrupted error is critical */
if ((errn != Status.TIMEUP) && (errn != Status.EINTR)) {
if (errn > Status.APR_OS_START_USERERR) {
errn -= Status.APR_OS_START_USERERR;
}
getLog().error(sm.getString(
"endpoint.apr.pollError",
Integer.valueOf(errn),
Error.strerror(errn)));
// Handle poll critical failure
synchronized (this) {
destroy();
init();
}
continue;
}
}
// Call maintain for the sendfile poller
if (getConnectionTimeout() > 0 &&
maintainTime > 1000000L && sendfileRunning) {
rv = Poll.maintain(sendfilePollset, desc, false);
maintainTime = 0;
if (rv > 0) {
for (int n = 0; n < rv; n++) {
// Get the sendfile state
SendfileData state = sendfileData.get(Long.valueOf(desc[n]));
// Close socket and clear pool
remove(state);
// Destroy file descriptor pool, which should close the file
// Close the socket, as the response would be incomplete
closeSocket(state.socket);
}
}
}
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
getLog().error(sm.getString("endpoint.poll.error"), t);
}
}
synchronized (this) {
this.notifyAll();
}
}
}
// --------------------------------- SocketWithOptionsProcessor Inner Class
/**
* This class is the equivalent of the Worker, but will simply use in an
* external Executor thread pool. This will also set the socket options
* and do the handshake.
*
* This is called after an accept().
*/
protected class SocketWithOptionsProcessor implements Runnable {
protected SocketWrapperBase<Long> socket = null;
public SocketWithOptionsProcessor(SocketWrapperBase<Long> socket) {
this.socket = socket;
}
@Override
public void run() {
synchronized (socket) {
if (!deferAccept) {
if (setSocketOptions(socket)) {
getPoller().add(socket.getSocket().longValue(),
getConnectionTimeout(), Poll.APR_POLLIN);
} else {
// Close socket and pool
closeSocket(socket.getSocket().longValue());
socket = null;
}
} else {
// Process the request from this socket
if (!setSocketOptions(socket)) {
// Close socket and pool
closeSocket(socket.getSocket().longValue());
socket = null;
return;
}
// Process the request from this socket
Handler.SocketState state = getHandler().process(socket,
SocketEvent.OPEN_READ);
if (state == Handler.SocketState.CLOSED) {
// Close socket and pool
closeSocket(socket.getSocket().longValue());
socket = null;
}
}
}
}
}
// -------------------------------------------- SocketProcessor Inner Class
/**
* This class is the equivalent of the Worker, but will simply use in an
* external Executor thread pool.
*/
protected class SocketProcessor extends SocketProcessorBase<Long> {
public SocketProcessor(SocketWrapperBase<Long> socketWrapper, SocketEvent event) {
super(socketWrapper, event);
}
@Override
protected void doRun() {
try {
// Process the request from this socket
SocketState state = getHandler().process(socketWrapper, event);
if (state == Handler.SocketState.CLOSED) {
// Close socket and pool
closeSocket(socketWrapper.getSocket().longValue());
}
} finally {
socketWrapper = null;
event = null;
//return to cache
if (running && !paused) {
processorCache.push(this);
}
}
}
}
public static class AprSocketWrapper extends SocketWrapperBase<Long> {
private static final int SSL_OUTPUT_BUFFER_SIZE = 8192;
private final ByteBuffer sslOutputBuffer;
private final Object closedLock = new Object();
private volatile boolean closed = false;
// This field should only be used by Poller#run()
private int pollerFlags = 0;
public AprSocketWrapper(Long socket, AprEndpoint endpoint) {
super(socket, endpoint);
// TODO Make the socketWriteBuffer size configurable and align the
// SSL and app buffer size settings with NIO & NIO2.
if (endpoint.isSSLEnabled()) {
sslOutputBuffer = ByteBuffer.allocateDirect(SSL_OUTPUT_BUFFER_SIZE);
sslOutputBuffer.position(SSL_OUTPUT_BUFFER_SIZE);
} else {
sslOutputBuffer = null;
}
socketBufferHandler = new SocketBufferHandler(6 * 1500, 6 * 1500, true);
}
@Override
public int read(boolean block, byte[] b, int off, int len) throws IOException {
int nRead = populateReadBuffer(b, off, len);
if (nRead > 0) {
return nRead;
/*
* Since more bytes may have arrived since the buffer was last
* filled, it is an option at this point to perform a
* non-blocking read. However correctly handling the case if
* that read returns end of stream adds complexity. Therefore,
* at the moment, the preference is for simplicity.
*/
}
// Fill the read buffer as best we can.
nRead = fillReadBuffer(block);
// Fill as much of the remaining byte array as possible with the
// data that was just read
if (nRead > 0) {
socketBufferHandler.configureReadBufferForRead();
nRead = Math.min(nRead, len);
socketBufferHandler.getReadBuffer().get(b, off, nRead);
}
return nRead;
}
@Override
public int read(boolean block, ByteBuffer to) throws IOException {
int nRead = populateReadBuffer(to);
if (nRead > 0) {
return nRead;
/*
* Since more bytes may have arrived since the buffer was last
* filled, it is an option at this point to perform a
* non-blocking read. However correctly handling the case if
* that read returns end of stream adds complexity. Therefore,
* at the moment, the preference is for simplicity.
*/
}
// The socket read buffer capacity is socket.appReadBufSize
int limit = socketBufferHandler.getReadBuffer().capacity();
if (to.isDirect() && to.remaining() >= limit) {
to.limit(to.position() + limit);
nRead = fillReadBuffer(block, to);
} else {
// Fill the read buffer as best we can.
nRead = fillReadBuffer(block);
// Fill as much of the remaining byte array as possible with the
// data that was just read
if (nRead > 0) {
nRead = populateReadBuffer(to);
}
}
return nRead;
}
private int fillReadBuffer(boolean block) throws IOException {
socketBufferHandler.configureReadBufferForWrite();
return fillReadBuffer(block, socketBufferHandler.getReadBuffer());
}
private int fillReadBuffer(boolean block, ByteBuffer to) throws IOException {
if (closed) {
throw new IOException(sm.getString("socket.apr.closed", getSocket()));
}
Lock readLock = getBlockingStatusReadLock();
WriteLock writeLock = getBlockingStatusWriteLock();
boolean readDone = false;
int result = 0;
readLock.lock();
try {
if (getBlockingStatus() == block) {
if (block) {
Socket.timeoutSet(getSocket().longValue(), getReadTimeout() * 1000);
}
result = Socket.recvb(getSocket().longValue(), to, to.position(),
to.remaining());
readDone = true;
}
} finally {
readLock.unlock();
}
if (!readDone) {
writeLock.lock();
try {
// Set the current settings for this socket
setBlockingStatus(block);
if (block) {
Socket.timeoutSet(getSocket().longValue(), getReadTimeout() * 1000);
} else {
Socket.timeoutSet(getSocket().longValue(), 0);
}
// Downgrade the lock
readLock.lock();
try {
writeLock.unlock();
result = Socket.recvb(getSocket().longValue(), to, to.position(),
to.remaining());
} finally {
readLock.unlock();
}
} finally {
// Should have been released above but may not have been on some
// exception paths
if (writeLock.isHeldByCurrentThread()) {
writeLock.unlock();
}
}
}
if (result > 0) {
to.position(to.position() + result);
return result;
} else if (result == 0 || -result == Status.EAGAIN) {
return 0;
} else if ((-result) == Status.ETIMEDOUT || (-result) == Status.TIMEUP) {
if (block) {
throw new SocketTimeoutException(sm.getString("iib.readtimeout"));
} else {
// Attempting to read from the socket when the poller
// has not signalled that there is data to read appears
// to behave like a blocking read with a short timeout
// on OSX rather than like a non-blocking read. If no
// data is read, treat the resulting timeout like a
// non-blocking read that returned no data.
return 0;
}
} else if (-result == Status.APR_EOF) {
return -1;
} else if ((OS.IS_WIN32 || OS.IS_WIN64) &&
(-result == Status.APR_OS_START_SYSERR + 10053)) {
// 10053 on Windows is connection aborted
throw new EOFException(sm.getString("socket.apr.clientAbort"));
} else {
throw new IOException(sm.getString("socket.apr.read.error",
Integer.valueOf(-result), getSocket(), this));
}
}
@Override
public boolean isReadyForRead() throws IOException {
socketBufferHandler.configureReadBufferForRead();
if (socketBufferHandler.getReadBuffer().remaining() > 0) {
return true;
}
fillReadBuffer(false);
boolean isReady = socketBufferHandler.getReadBuffer().position() > 0;
return isReady;
}
@Override
public void close() {
getEndpoint().getHandler().release(this);
synchronized (closedLock) {
// APR typically crashes if the same socket is closed twice so
// make sure that doesn't happen.
if (closed) {
return;
}
closed = true;
if (sslOutputBuffer != null) {
ByteBufferUtils.cleanDirectBuffer(sslOutputBuffer);
}
((AprEndpoint) getEndpoint()).getPoller().close(getSocket().longValue());
}
}
@Override
public boolean isClosed() {
synchronized (closedLock) {
return closed;
}
}
@Override
protected void writeByteBufferBlocking(ByteBuffer from) throws IOException {
if (from.isDirect()) {
super.writeByteBufferBlocking(from);
} else {
// The socket write buffer capacity is socket.appWriteBufSize
ByteBuffer writeBuffer = socketBufferHandler.getWriteBuffer();
int limit = writeBuffer.capacity();
while (from.remaining() >= limit) {
socketBufferHandler.configureWriteBufferForWrite();
transfer(from, writeBuffer);
doWrite(true);
}
if (from.remaining() > 0) {
socketBufferHandler.configureWriteBufferForWrite();
transfer(from, writeBuffer);
}
}
}
@Override
protected boolean writeByteBufferNonBlocking(ByteBuffer from) throws IOException {
if (from.isDirect()) {
return super.writeByteBufferNonBlocking(from);
} else {
// The socket write buffer capacity is socket.appWriteBufSize
ByteBuffer writeBuffer = socketBufferHandler.getWriteBuffer();
int limit = writeBuffer.capacity();
while (from.remaining() >= limit) {
socketBufferHandler.configureWriteBufferForWrite();
transfer(from, writeBuffer);
int newPosition = writeBuffer.position() + limit;
doWrite(false);
if (writeBuffer.position() != newPosition) {
// Didn't write the whole amount of data in the last
// non-blocking write.
// Exit the loop.
return true;
}
}
if (from.remaining() > 0) {
socketBufferHandler.configureWriteBufferForWrite();
transfer(from, writeBuffer);
}
return false;
}
}
@Override
protected void doWrite(boolean block, ByteBuffer from) throws IOException {
if (closed) {
throw new IOException(sm.getString("socket.apr.closed", getSocket()));
}
Lock readLock = getBlockingStatusReadLock();
WriteLock writeLock = getBlockingStatusWriteLock();
readLock.lock();
try {
if (getBlockingStatus() == block) {
if (block) {
Socket.timeoutSet(getSocket().longValue(), getWriteTimeout() * 1000);
}
doWriteInternal(from);
return;
}
} finally {
readLock.unlock();
}
writeLock.lock();
try {
// Set the current settings for this socket
setBlockingStatus(block);
if (block) {
Socket.timeoutSet(getSocket().longValue(), getWriteTimeout() * 1000);
} else {
Socket.timeoutSet(getSocket().longValue(), 0);
}
// Downgrade the lock
readLock.lock();
try {
writeLock.unlock();
doWriteInternal(from);
} finally {
readLock.unlock();
}
} finally {
// Should have been released above but may not have been on some
// exception paths
if (writeLock.isHeldByCurrentThread()) {
writeLock.unlock();
}
}
}
private void doWriteInternal(ByteBuffer from) throws IOException {
int thisTime;
do {
thisTime = 0;
if (getEndpoint().isSSLEnabled()) {
if (sslOutputBuffer.remaining() == 0) {
// Buffer was fully written last time around
sslOutputBuffer.clear();
transfer(from, sslOutputBuffer);
sslOutputBuffer.flip();
} else {
// Buffer still has data from previous attempt to write
// APR + SSL requires that exactly the same parameters are
// passed when re-attempting the write
}
thisTime = Socket.sendb(getSocket().longValue(), sslOutputBuffer,
sslOutputBuffer.position(), sslOutputBuffer.limit());
if (thisTime > 0) {
sslOutputBuffer.position(sslOutputBuffer.position() + thisTime);
}
} else {
thisTime = Socket.sendb(getSocket().longValue(), from, from.position(),
from.remaining());
if (thisTime > 0) {
from.position(from.position() + thisTime);
}
}
if (Status.APR_STATUS_IS_EAGAIN(-thisTime)) {
thisTime = 0;
} else if (-thisTime == Status.APR_EOF) {
throw new EOFException(sm.getString("socket.apr.clientAbort"));
} else if ((OS.IS_WIN32 || OS.IS_WIN64) &&
(-thisTime == Status.APR_OS_START_SYSERR + 10053)) {
// 10053 on Windows is connection aborted
throw new EOFException(sm.getString("socket.apr.clientAbort"));
} else if (thisTime < 0) {
throw new IOException(sm.getString("socket.apr.write.error",
Integer.valueOf(-thisTime), getSocket(), this));
}
} while ((thisTime > 0 || getBlockingStatus()) && from.hasRemaining());
// If there is data left in the buffer the socket will be registered for
// write further up the stack. This is to ensure the socket is only
// registered for write once as both container and user code can trigger
// write registration.
}
@Override
public void registerReadInterest() {
// Make sure an already closed socket is not added to the poller
synchronized (closedLock) {
if (closed) {
return;
}
Poller p = ((AprEndpoint) getEndpoint()).getPoller();
if (p != null) {
p.add(getSocket().longValue(), getReadTimeout(), Poll.APR_POLLIN);
}
}
}
@Override
public void registerWriteInterest() {
// Make sure an already closed socket is not added to the poller
synchronized (closedLock) {
if (closed) {
return;
}
((AprEndpoint) getEndpoint()).getPoller().add(
getSocket().longValue(), getWriteTimeout(), Poll.APR_POLLOUT);
}
}
@Override
public SendfileDataBase createSendfileData(String filename, long pos, long length) {
return new SendfileData(filename, pos, length);
}
@Override
public SendfileState processSendfile(SendfileDataBase sendfileData) {
((SendfileData) sendfileData).socket = getSocket().longValue();
return ((AprEndpoint) getEndpoint()).getSendfile().add((SendfileData) sendfileData);
}
@Override
protected void populateRemoteAddr() {
if (closed) {
return;
}
try {
long socket = getSocket().longValue();
long sa = Address.get(Socket.APR_REMOTE, socket);
remoteAddr = Address.getip(sa);
} catch (Exception e) {
log.warn(sm.getString("endpoint.warn.noRemoteAddr", getSocket()), e);
}
}
@Override
protected void populateRemoteHost() {
if (closed) {
return;
}
try {
long socket = getSocket().longValue();
long sa = Address.get(Socket.APR_REMOTE, socket);
remoteHost = Address.getnameinfo(sa, 0);
if (remoteAddr == null) {
remoteAddr = Address.getip(sa);
}
} catch (Exception e) {
log.warn(sm.getString("endpoint.warn.noRemoteHost", getSocket()), e);
}
}
@Override
protected void populateRemotePort() {
if (closed) {
return;
}
try {
long socket = getSocket().longValue();
long sa = Address.get(Socket.APR_REMOTE, socket);
Sockaddr addr = Address.getInfo(sa);
remotePort = addr.port;
} catch (Exception e) {
log.warn(sm.getString("endpoint.warn.noRemotePort", getSocket()), e);
}
}
@Override
protected void populateLocalName() {
if (closed) {
return;
}
try {
long socket = getSocket().longValue();
long sa = Address.get(Socket.APR_LOCAL, socket);
localName =Address.getnameinfo(sa, 0);
} catch (Exception e) {
log.warn(sm.getString("endpoint.warn.noLocalName"), e);
}
}
@Override
protected void populateLocalAddr() {
if (closed) {
return;
}
try {
long socket = getSocket().longValue();
long sa = Address.get(Socket.APR_LOCAL, socket);
localAddr = Address.getip(sa);
} catch (Exception e) {
log.warn(sm.getString("endpoint.warn.noLocalAddr"), e);
}
}
@Override
protected void populateLocalPort() {
if (closed) {
return;
}
try {
long socket = getSocket().longValue();
long sa = Address.get(Socket.APR_LOCAL, socket);
Sockaddr addr = Address.getInfo(sa);
localPort = addr.port;
} catch (Exception e) {
log.warn(sm.getString("endpoint.warn.noLocalPort"), e);
}
}
@Override
public SSLSupport getSslSupport(String clientCertProvider) {
if (getEndpoint().isSSLEnabled()) {
return new AprSSLSupport(this, clientCertProvider);
} else {
return null;
}
}
@Override
public void doClientAuth(SSLSupport sslSupport) {
long socket = getSocket().longValue();
// Configure connection to require a certificate
SSLSocket.setVerify(socket, SSL.SSL_CVERIFY_REQUIRE, -1);
SSLSocket.renegotiate(socket);
}
@Override
public void setAppReadBufHandler(ApplicationBufferHandler handler) {
// no-op
}
}
}