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[#1836] Add comment to explain why read is triggered

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This commit is contained in:
Norman Maurer 2013-09-17 06:58:23 +02:00
parent f1d4f813ed
commit f034f90fb3
1 changed files with 2 additions and 0 deletions
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transport/src/main/java/io/netty/channel/nio/NioEventLoop.java
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@ -474,6 +474,8 @@ public final class NioEventLoop extends SingleThreadEventLoop {
try { try {
int readyOps = k.readyOps(); int readyOps = k.readyOps();
// Also check for readOps of 0 to workaround possible JDK bug which may otherwise lead
// to a spin loop
if ((readyOps & (SelectionKey.OP_READ | SelectionKey.OP_ACCEPT)) != 0 || readyOps == 0) { if ((readyOps & (SelectionKey.OP_READ | SelectionKey.OP_ACCEPT)) != 0 || readyOps == 0) {
unsafe.read(); unsafe.read();
if (!ch.isOpen()) { if (!ch.isOpen()) {