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Serialise concurrent calls to bind().

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This commit is contained in:
akwizgran
2018-03-27 10:39:15 +01:00
parent 040894b205
commit 95a08eed5c
1 changed files with 6 additions and 2 deletions
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8
bramble-core/src/main/java/org/briarproject/bramble/plugin/tcp/TcpPlugin.java
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@@ -1,5 +1,6 @@
package org.briarproject.bramble.plugin.tcp;
import org.briarproject.bramble.PoliteExecutor;
import org.briarproject.bramble.api.contact.ContactId;
import org.briarproject.bramble.api.data.BdfList;
import org.briarproject.bramble.api.keyagreement.KeyAgreementListener;
@@ -47,7 +48,7 @@ abstract class TcpPlugin implements DuplexPlugin {
private static final Logger LOG =
Logger.getLogger(TcpPlugin.class.getName());
protected final Executor ioExecutor;
protected final Executor ioExecutor, bindExecutor;
protected final Backoff backoff;
protected final DuplexPluginCallback callback;
protected final int maxLatency, maxIdleTime, socketTimeout;
@@ -90,6 +91,8 @@ abstract class TcpPlugin implements DuplexPlugin {
if (maxIdleTime > Integer.MAX_VALUE / 2)
socketTimeout = Integer.MAX_VALUE;
else socketTimeout = maxIdleTime * 2;
// Don't execute more than one bind operation at a time
bindExecutor = new PoliteExecutor("TcpPlugin", ioExecutor, 1);
}
@Override
@@ -110,8 +113,9 @@ abstract class TcpPlugin implements DuplexPlugin {
}
protected void bind() {
ioExecutor.execute(() -> {
bindExecutor.execute(() -> {
if (!running) return;
if (socket != null && !socket.isClosed()) return;
ServerSocket ss = null;
for (InetSocketAddress addr : getLocalSocketAddresses()) {
try {