From 6c4c0926c5a21efdcc0b8fb77b0c84f0aa152f24 Mon Sep 17 00:00:00 2001
From: akwizgran <michael@briarproject.org>
Date: Thu, 25 Apr 2013 14:57:32 +0100
Subject: [PATCH] Randomise initial polling intervals to spread out connection
attempts.
---
briar-core/src/net/sf/briar/plugins/PollerImpl.java | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/briar-core/src/net/sf/briar/plugins/PollerImpl.java b/briar-core/src/net/sf/briar/plugins/PollerImpl.java
index 204547f1c9..c5ea77feab 100644
--- a/briar-core/src/net/sf/briar/plugins/PollerImpl.java
+++ b/briar-core/src/net/sf/briar/plugins/PollerImpl.java
@@ -36,14 +36,16 @@ class PollerImpl implements Poller, Runnable {
}
public synchronized void start(Collection<Plugin> plugins) {
- for(Plugin plugin : plugins) schedule(plugin);
+ for(Plugin plugin : plugins) schedule(plugin, true);
new Thread(this, "Poller").start();
}
- private synchronized void schedule(Plugin plugin) {
+ private synchronized void schedule(Plugin plugin, boolean randomise) {
if(plugin.shouldPoll()) {
long now = clock.currentTimeMillis();
long interval = plugin.getPollingInterval();
+ // Randomise intervals at startup to spread out connection attempts
+ if(randomise) interval = (long) (interval * Math.random());
pollTimes.add(new PollTime(now + interval, plugin));
}
}
@@ -74,7 +76,7 @@ class PollerImpl implements Poller, Runnable {
p.plugin.poll(connected);
}
});
- schedule(p.plugin);
+ schedule(p.plugin, false);
} else {
try {
wait(p.time - now);
--
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