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Application layer keepalives to detect dead TCP connections.

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DuplexOutgoingSession flushes its output stream if it's idle for a
transport-defined interval, causing an empty frame to be sent. The TCP
and Tor plugins use a socket timeout equal to twice the idle interval to
detect dead connections.

See bugs #27, #46 and #60.
This commit is contained in:
akwizgran
2014-12-13 12:00:40 +00:00
parent 3a70aa7653
commit d4fa656dbb
19 changed files with 95 additions and 26 deletions
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10
briar-tests/src/org/briarproject/plugins/tcp/LanTcpClientTest.java
View File

@@ -15,6 +15,11 @@ import org.briarproject.plugins.DuplexClientTest;
// is running on another machine
public class LanTcpClientTest extends DuplexClientTest {
private static final int MAX_FRAME_LENGTH = 1024;
private static final int MAX_LATENCY = 60 * 1000;
private static final int MAX_IDLE_TIME = 30 * 1000;
private static final int POLLING_INTERVAL = 60 * 1000;
private LanTcpClientTest(Executor executor, String serverAddress,
String serverPort) {
// Store the server's internal address and port
@@ -22,11 +27,12 @@ public class LanTcpClientTest extends DuplexClientTest {
p.put("address", serverAddress);
p.put("port", serverPort);
Map<ContactId, TransportProperties> remote =
Collections.singletonMap(contactId, p);
Collections.singletonMap(contactId, p);
// Create the plugin
callback = new ClientCallback(new TransportConfig(),
new TransportProperties(), remote);
plugin = new LanTcpPlugin(executor, callback, 0, 0, 0);
plugin = new LanTcpPlugin(executor, callback, MAX_FRAME_LENGTH,
MAX_LATENCY, MAX_IDLE_TIME, POLLING_INTERVAL);
}
public static void main(String[] args) throws Exception {