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Fixed occasional on the selector - it shouldn't crash the application

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This commit is contained in:
Christian Basler 2017-07-22 08:01:59 +02:00
parent 6c04aa683e
commit d9e52c85c3
1 changed files with 65 additions and 61 deletions
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126
networking/src/main/kotlin/ch/dissem/bitmessage/networking/nio/NioNetworkHandler.kt
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@ -203,73 +203,77 @@ class NioNetworkHandler : NetworkHandler, InternalContext.ContextHolder {
serverChannel.register(selector, OP_ACCEPT, null)
while (selector.isOpen) {
selector.select(1000)
val keyIterator = selector.selectedKeys().iterator()
while (keyIterator.hasNext()) {
val key = keyIterator.next()
keyIterator.remove()
if (key.attachment() == null) {
try {
if (key.isAcceptable) {
// handle accept
try {
val accepted = (key.channel() as ServerSocketChannel).accept()
accepted.configureBlocking(false)
val connection = Connection(ctx, SERVER,
NetworkAddress(
time = now,
stream = 1L,
socket = accepted.socket()!!
),
requestedObjects, 0
)
connections.put(
connection,
accepted.register(selector, OP_READ or OP_WRITE, connection)
)
} catch (e: AsynchronousCloseException) {
LOG.trace(e.message)
} catch (e: IOException) {
LOG.error(e.message, e)
}
try {
selector.select(1000)
val keyIterator = selector.selectedKeys().iterator()
while (keyIterator.hasNext()) {
val key = keyIterator.next()
keyIterator.remove()
if (key.attachment() == null) {
try {
if (key.isAcceptable) {
// handle accept
try {
val accepted = (key.channel() as ServerSocketChannel).accept()
accepted.configureBlocking(false)
val connection = Connection(ctx, SERVER,
NetworkAddress(
time = now,
stream = 1L,
socket = accepted.socket()!!
),
requestedObjects, 0
)
connections.put(
connection,
accepted.register(selector, OP_READ or OP_WRITE, connection)
)
} catch (e: AsynchronousCloseException) {
LOG.trace(e.message)
} catch (e: IOException) {
LOG.error(e.message, e)
}
}
} catch (e: CancelledKeyException) {
LOG.debug(e.message, e)
}
} else {
// handle read/write
val channel = key.channel() as SocketChannel
val connection = key.attachment() as Connection
try {
if (key.isConnectable) {
if (!channel.finishConnect()) {
continue
}
} catch (e: CancelledKeyException) {
LOG.debug(e.message, e)
}
if (key.isWritable) {
write(channel, connection.io)
} else {
// handle read/write
val channel = key.channel() as SocketChannel
val connection = key.attachment() as Connection
try {
if (key.isConnectable) {
if (!channel.finishConnect()) {
continue
}
}
if (key.isWritable) {
write(channel, connection.io)
}
if (key.isReadable) {
read(channel, connection.io)
}
if (connection.state == Connection.State.DISCONNECTED) {
key.interestOps(0)
channel.close()
} else if (connection.io.isWritePending) {
key.interestOps(OP_READ or OP_WRITE)
} else {
key.interestOps(OP_READ)
}
} catch (e: CancelledKeyException) {
connection.disconnect()
} catch (e: NodeException) {
connection.disconnect()
} catch (e: IOException) {
connection.disconnect()
}
if (key.isReadable) {
read(channel, connection.io)
}
if (connection.state == Connection.State.DISCONNECTED) {
key.interestOps(0)
channel.close()
} else if (connection.io.isWritePending) {
key.interestOps(OP_READ or OP_WRITE)
} else {
key.interestOps(OP_READ)
}
} catch (e: CancelledKeyException) {
connection.disconnect()
} catch (e: NodeException) {
connection.disconnect()
} catch (e: IOException) {
connection.disconnect()
}
}
} catch (e: CancelledKeyException) {
LOG.debug(e.message, e)
}
// set interest ops
for ((connection, selectionKey) in connections) {