* i2psnark:

- Add idle detector, reduce tunnel count when idle (prep for torrent updates) - Cancel CoordinatorAcceptor cleaner when halted - Make PeerCoordinatorSet an Iterable - Reduce max protocol errors to 1 - Disable unused PeerMonitorTask
2013-06-01 16:57:50 +00:00
parent 7d08183334
commit ff20174572
9 changed files with 190 additions and 18 deletions
--- a/apps/i2psnark/java/src/org/klomp/snark/IdleChecker.java
+++ b/apps/i2psnark/java/src/org/klomp/snark/IdleChecker.java
@@ -0,0 +1,120 @@
+/*
+ * Released into the public domain 
+ * with no warranty of any kind, either expressed or implied.  
+ */
+package org.klomp.snark;
+
+import java.util.Map;
+import java.util.Properties;
+
+import net.i2p.client.I2PSession;
+import net.i2p.client.streaming.I2PSocketManager;
+import net.i2p.util.Log;
+import net.i2p.util.SimpleTimer2;
+
+/**
+ *  Periodically check for idle condition based on connected peers,
+ *  and reduce/restore tunnel count as necessary.
+ *  We can't use the I2CP idle detector because it's based on traffic,
+ *  so DHT and announces would keep it non-idle.
+ *
+ *  @since 0.9.7
+ */
+class IdleChecker extends SimpleTimer2.TimedEvent {
+
+    private final I2PSnarkUtil _util;
+    private final PeerCoordinatorSet _pcs;
+    private final Log _log;
+    private int _consec;
+    private boolean _isIdle;
+
+    private static final long CHECK_TIME = 63*1000;
+    private static final int MAX_CONSEC_IDLE = 4;
+
+    /**
+     *  Caller must schedule
+     */
+    public IdleChecker(I2PSnarkUtil util, PeerCoordinatorSet pcs) {
+        super(util.getContext().simpleTimer2());
+        _log = util.getContext().logManager().getLog(IdleChecker.class);
+        _util = util;
+        _pcs = pcs;
+    }
+
+    public void timeReached() {
+        if (_util.connected()) {
+            boolean hasPeers = false;
+            for (PeerCoordinator pc : _pcs) {
+                if (pc.getPeers() > 0) {
+                    hasPeers = true;
+                    break;
+                }
+            }
+            if (hasPeers) {
+                if (_isIdle)
+                    restoreTunnels();
+            } else {
+                if (!_isIdle) {
+                    if (_consec++ >= MAX_CONSEC_IDLE)
+                        reduceTunnels();
+                }
+            }
+        } else {
+            _isIdle = false;
+            _consec = 0;
+        }
+        schedule(CHECK_TIME);
+    }
+
+    /**
+     *  Reduce to 1 in / 1 out tunnel
+     */
+    private void reduceTunnels() {
+        _isIdle = true;
+        if (_log.shouldLog(Log.INFO))
+            _log.info("Reducing tunnels on idle");
+        setTunnels("1", "1", "0", "0");
+    }
+    
+    /**
+     *  Restore tunnel count
+     */
+    private void restoreTunnels() {
+        _isIdle = false;
+        if (_log.shouldLog(Log.INFO))
+            _log.info("Restoring tunnels on activity");
+        Map<String, String> opts = _util.getI2CPOptions();
+        String i = opts.get("inbound.quantity");
+        if (i == null)
+            i = "3";
+        String o = opts.get("outbound.quantity");
+        if (o == null)
+            o = "3";
+        String ib = opts.get("inbound.backupQuantity");
+        if (ib == null)
+            ib = "0";
+        String ob= opts.get("outbound.backupQuantity");
+        if (ob == null)
+            ob = "0";
+        setTunnels(i, o, ib, ob);
+    }
+    
+    /**
+     *  Set in / out / in backup / out backup tunnel counts
+     */
+    private void setTunnels(String i, String o, String ib, String ob) {
+        _consec = 0;
+        I2PSocketManager mgr = _util.getSocketManager();
+        if (mgr != null) {
+            I2PSession sess = mgr.getSession();
+            if (sess != null) {
+                Properties newProps = new Properties();
+                newProps.setProperty("inbound.quantity", i);
+                newProps.setProperty("outbound.quantity", o);
+                newProps.setProperty("inbound.backupQuantity", ib);
+                newProps.setProperty("outbound.backupQuantity", ob);
+                sess.updateOptions(newProps);
+            }
+        }
+    }
+}