47 lines
2.0 KiB
C++
Executable File
47 lines
2.0 KiB
C++
Executable File
/**********
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This library is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
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This library is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this library; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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**********/
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// "mTunnel" multicast access service
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// Copyright (c) 1996-2016 Live Networks, Inc. All rights reserved.
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// IO event handlers
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// Implementation
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#include "IOHandlers.hh"
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#include "TunnelEncaps.hh"
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//##### TEMP: Use a single buffer, sized for UDP tunnels:
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//##### This assumes that the I/O handlers are non-reentrant
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static unsigned const maxPacketLength = 50*1024; // bytes
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// This is usually overkill, because UDP packets are usually no larger
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// than the typical Ethernet MTU (1500 bytes). However, I've seen
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// reports of Windows Media Servers sending UDP packets as large as
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// 27 kBytes. These will probably undego lots of IP-level
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// fragmentation, but that occurs below us. We just have to hope that
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// fragments don't get lost.
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static unsigned const ioBufferSize
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= maxPacketLength + TunnelEncapsulationTrailerMaxSize;
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static unsigned char ioBuffer[ioBufferSize];
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void socketReadHandler(Socket* sock, int /*mask*/) {
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unsigned bytesRead;
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struct sockaddr_in fromAddress;
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UsageEnvironment& saveEnv = sock->env();
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// because handleRead(), if it fails, may delete "sock"
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if (!sock->handleRead(ioBuffer, ioBufferSize, bytesRead, fromAddress)) {
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saveEnv.reportBackgroundError();
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}
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}
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