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ReadWriteLock in TunnelControlGroup (#815)

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This commit is contained in:
str4d
2015-03-23 12:49:30 +00:00
parent 2fefe93922
commit 2d31f30a22
1 changed files with 108 additions and 48 deletions
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156
apps/i2ptunnel/java/src/net/i2p/i2ptunnel/TunnelControllerGroup.java
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@@ -11,11 +11,12 @@ import java.util.Properties;
import java.util.Set;
import java.util.concurrent.Executors;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import net.i2p.I2PAppContext;
import net.i2p.app.*;
@@ -43,6 +44,7 @@ public class TunnelControllerGroup implements ClientApp {
static final String DEFAULT_CONFIG_FILE = "i2ptunnel.config";
private final List<TunnelController> _controllers;
private final ReadWriteLock _controllersLock;
private final String _configFile;
private static final String REGISTERED_NAME = "i2ptunnel";
@@ -105,6 +107,7 @@ public class TunnelControllerGroup implements ClientApp {
_mgr = mgr;
_log = _context.logManager().getLog(TunnelControllerGroup.class);
_controllers = new ArrayList<TunnelController>();
_controllersLock = new ReentrantReadWriteLock(true);
if (args == null || args.length <= 0)
_configFile = DEFAULT_CONFIG_FILE;
else if (args.length == 1)
@@ -243,14 +246,19 @@ public class TunnelControllerGroup implements ClientApp {
public synchronized void loadControllers(String configFile) {
changeState(STARTING);
Properties cfg = loadConfig(configFile);
int i = 0;
while (true) {
String type = cfg.getProperty("tunnel." + i + ".type");
if (type == null)
break;
TunnelController controller = new TunnelController(cfg, "tunnel." + i + ".");
_controllers.add(controller);
i++;
int i = 0;
_controllersLock.writeLock().lock();
try {
while (true) {
String type = cfg.getProperty("tunnel." + i + ".type");
if (type == null)
break;
TunnelController controller = new TunnelController(cfg, "tunnel." + i + ".");
_controllers.add(controller);
i++;
}
} finally {
_controllersLock.writeLock().unlock();
}
I2PAppThread startupThread = new I2PAppThread(new StartControllers(), "Startup tunnels");
startupThread.start();
@@ -263,10 +271,15 @@ public class TunnelControllerGroup implements ClientApp {
private class StartControllers implements Runnable {
public void run() {
synchronized(TunnelControllerGroup.this) {
for (int i = 0; i < _controllers.size(); i++) {
TunnelController controller = _controllers.get(i);
if (controller.getStartOnLoad())
controller.startTunnel();
_controllersLock.readLock().lock();
try {
for (int i = 0; i < _controllers.size(); i++) {
TunnelController controller = _controllers.get(i);
if (controller.getStartOnLoad())
controller.startTunnel();
}
} finally {
_controllersLock.readLock().unlock();
}
}
}
@@ -289,19 +302,31 @@ public class TunnelControllerGroup implements ClientApp {
*
*/
public synchronized void unloadControllers() {
destroyAllControllers();
_controllers.clear();
_controllersLock.writeLock().lock();
try {
destroyAllControllers();
_controllers.clear();
} finally {
_controllersLock.writeLock().unlock();
}
if (_log.shouldLog(Log.INFO))
_log.info("All controllers stopped and unloaded");
}
/**
* Add the given tunnel to the set of known controllers (but dont add it to
* a config file or start it or anything)
*
*/
public synchronized void addController(TunnelController controller) { _controllers.add(controller); }
public synchronized void addController(TunnelController controller) {
_controllersLock.writeLock().lock();
try {
_controllers.add(controller);
} finally {
_controllersLock.writeLock().unlock();
}
}
/**
* Stop and remove the given tunnel
*
@@ -311,7 +336,12 @@ public class TunnelControllerGroup implements ClientApp {
if (controller == null) return new ArrayList<String>();
controller.stopTunnel();
List<String> msgs = controller.clearMessages();
_controllers.remove(controller);
_controllersLock.writeLock().lock();
try {
_controllers.remove(controller);
} finally {
_controllersLock.writeLock().unlock();
}
msgs.add("Tunnel " + controller.getName() + " removed");
return msgs;
}
@@ -323,13 +353,18 @@ public class TunnelControllerGroup implements ClientApp {
*/
public synchronized List<String> stopAllControllers() {
List<String> msgs = new ArrayList<String>();
for (int i = 0; i < _controllers.size(); i++) {
TunnelController controller = _controllers.get(i);
controller.stopTunnel();
msgs.addAll(controller.clearMessages());
_controllersLock.readLock().lock();
try {
for (int i = 0; i < _controllers.size(); i++) {
TunnelController controller = _controllers.get(i);
controller.stopTunnel();
msgs.addAll(controller.clearMessages());
}
if (_log.shouldLog(Log.INFO))
_log.info(_controllers.size() + " controllers stopped");
} finally {
_controllersLock.readLock().unlock();
}
if (_log.shouldLog(Log.INFO))
_log.info(_controllers.size() + " controllers stopped");
return msgs;
}
@@ -355,14 +390,19 @@ public class TunnelControllerGroup implements ClientApp {
*/
public synchronized List<String> startAllControllers() {
List<String> msgs = new ArrayList<String>();
for (int i = 0; i < _controllers.size(); i++) {
TunnelController controller = _controllers.get(i);
controller.startTunnelBackground();
msgs.addAll(controller.clearMessages());
}
_controllersLock.readLock().lock();
try {
for (int i = 0; i < _controllers.size(); i++) {
TunnelController controller = _controllers.get(i);
controller.startTunnelBackground();
msgs.addAll(controller.clearMessages());
}
if (_log.shouldLog(Log.INFO))
_log.info(_controllers.size() + " controllers started");
if (_log.shouldLog(Log.INFO))
_log.info(_controllers.size() + " controllers started");
} finally {
_controllersLock.readLock().unlock();
}
return msgs;
}
@@ -373,13 +413,18 @@ public class TunnelControllerGroup implements ClientApp {
*/
public synchronized List<String> restartAllControllers() {
List<String> msgs = new ArrayList<String>();
for (int i = 0; i < _controllers.size(); i++) {
TunnelController controller = _controllers.get(i);
controller.restartTunnel();
msgs.addAll(controller.clearMessages());
_controllersLock.readLock().lock();
try {
for (int i = 0; i < _controllers.size(); i++) {
TunnelController controller = _controllers.get(i);
controller.restartTunnel();
msgs.addAll(controller.clearMessages());
}
if (_log.shouldLog(Log.INFO))
_log.info(_controllers.size() + " controllers restarted");
} finally {
_controllersLock.readLock().unlock();
}
if (_log.shouldLog(Log.INFO))
_log.info(_controllers.size() + " controllers restarted");
return msgs;
}
@@ -388,11 +433,16 @@ public class TunnelControllerGroup implements ClientApp {
*
* @return list of messages the tunnels have generated
*/
public synchronized List<String> clearAllMessages() {
public List<String> clearAllMessages() {
List<String> msgs = new ArrayList<String>();
for (int i = 0; i < _controllers.size(); i++) {
TunnelController controller = _controllers.get(i);
msgs.addAll(controller.clearMessages());
_controllersLock.readLock().lock();
try {
for (int i = 0; i < _controllers.size(); i++) {
TunnelController controller = _controllers.get(i);
msgs.addAll(controller.clearMessages());
}
} finally {
_controllersLock.readLock().unlock();
}
return msgs;
}
@@ -419,10 +469,15 @@ public class TunnelControllerGroup implements ClientApp {
parent.mkdirs();
Properties map = new OrderedProperties();
for (int i = 0; i < _controllers.size(); i++) {
TunnelController controller = _controllers.get(i);
Properties cur = controller.getConfig("tunnel." + i + ".");
map.putAll(cur);
_controllersLock.readLock().lock();
try {
for (int i = 0; i < _controllers.size(); i++) {
TunnelController controller = _controllers.get(i);
Properties cur = controller.getConfig("tunnel." + i + ".");
map.putAll(cur);
}
} finally {
_controllersLock.readLock().unlock();
}
DataHelper.storeProps(map, cfgFile);
@@ -460,8 +515,13 @@ public class TunnelControllerGroup implements ClientApp {
*
* @return list of TunnelController objects
*/
public synchronized List<TunnelController> getControllers() {
return new ArrayList<TunnelController>(_controllers);
public List<TunnelController> getControllers() {
_controllersLock.readLock().lock();
try {
return new ArrayList<TunnelController>(_controllers);
} finally {
_controllersLock.readLock().unlock();
}
}