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8280113: (dc) DatagramSocket.receive does not always throw when the channel is closed

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Reviewed-by: jpai, dfuchs
This commit is contained in:
Alan Bateman 2023-02-22 08:13:06 +00:00
parent f54e1080c5
commit b6ecca1268
2 changed files with 135 additions and 7 deletions
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14
src/java.base/share/classes/sun/nio/ch/DatagramChannelImpl.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -581,7 +581,7 @@ class DatagramChannelImpl
n = receive(dst, connected);
}
}
if (n >= 0) {
if (n > 0 || (n == 0 && isOpen())) {
// sender address is in socket address buffer
sender = sourceSocketAddress();
}
@ -701,7 +701,7 @@ class DatagramChannelImpl
park(Net.POLLIN);
n = receive(dst, connected);
}
if (n >= 0) {
if (n > 0 || (n == 0 && isOpen())) {
// sender address is in socket address buffer
sender = sourceSocketAddress();
}
@ -738,7 +738,7 @@ class DatagramChannelImpl
park(Net.POLLIN, remainingNanos);
n = receive(dst, connected);
}
if (n >= 0) {
if (n > 0 || (n == 0 && isOpen())) {
// sender address is in socket address buffer
sender = sourceSocketAddress();
}
@ -787,9 +787,9 @@ class DatagramChannelImpl
NIO_ACCESS.acquireSession(bb);
try {
int n = receive0(fd,
((DirectBuffer)bb).address() + pos, rem,
sourceSockAddr.address(),
connected);
((DirectBuffer)bb).address() + pos, rem,
sourceSockAddr.address(),
connected);
if (n > 0)
bb.position(pos + n);
return n;