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diff --git a/sc4pd/headers/server/SC_ComPort.h b/sc4pd/headers/server/SC_ComPort.h
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+/*
+ SuperCollider real time audio synthesis system
+ Copyright (c) 2002 James McCartney. All rights reserved.
+ http://www.audiosynth.com
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+
+#ifndef _SC_ComPort_
+#define _SC_ComPort_
+
+#if defined (__APPLE__) && defined (__GNUC__)
+#define USE_RENDEZVOUS
+#endif
+
+#include <sys/types.h>
+#ifdef SC_WIN32
+# include <winsock2.h>
+#else
+# include <sys/socket.h>
+#endif
+#include "OSC_Packet.h"
+#include "SC_Sem.h"
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+class SC_CmdPort
+{
+protected:
+ pthread_t mThread;
+ struct World *mWorld;
+
+ void Start();
+ virtual ReplyFunc GetReplyFunc()=0;
+public:
+ SC_CmdPort(struct World *inWorld);
+
+ virtual void* Run()=0;
+};
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+class SC_ComPort : public SC_CmdPort
+{
+protected:
+ int mPortNum;
+ int mSocket;
+ struct sockaddr_in mBindSockAddr;
+
+#ifdef USE_RENDEZVOUS
+ pthread_t mRendezvousThread;
+#endif
+
+public:
+ SC_ComPort(struct World *inWorld, int inPortNum);
+ virtual ~SC_ComPort();
+
+ int Socket() { return mSocket; }
+
+ int PortNum() const { return mPortNum; }
+#ifdef USE_RENDEZVOUS
+ // default implementation does nothing (this is correct for
+ // SC_TcpConnectionPort). Subclasses may override.
+ virtual void PublishToRendezvous() { };
+#endif
+};
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+class SC_UdpInPort : public SC_ComPort
+{
+protected:
+ struct sockaddr_in mReplySockAddr;
+ virtual ReplyFunc GetReplyFunc();
+
+public:
+ SC_UdpInPort(struct World *inWorld, int inPortNum);
+ ~SC_UdpInPort();
+
+ int PortNum() const { return mPortNum; }
+
+ void* Run();
+#ifdef USE_RENDEZVOUS
+ virtual void PublishToRendezvous();
+#endif
+
+};
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+class SC_TcpInPort : public SC_ComPort
+{
+ SC_Semaphore mConnectionAvailable;
+ int mBacklog;
+
+protected:
+ virtual ReplyFunc GetReplyFunc();
+
+public:
+ SC_TcpInPort(struct World *inWorld, int inPortNum, int inMaxConnections, int inBacklog);
+
+ virtual void* Run();
+
+ void ConnectionTerminated();
+#ifdef USE_RENDEZVOUS
+ virtual void PublishToRendezvous();
+#endif
+};
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+class SC_TcpConnectionPort : public SC_ComPort
+{
+ SC_TcpInPort *mParent;
+
+protected:
+ virtual ReplyFunc GetReplyFunc();
+
+public:
+ SC_TcpConnectionPort(struct World *inWorld, SC_TcpInPort *inParent, int inSocket);
+ virtual ~SC_TcpConnectionPort();
+
+ virtual void* Run();
+};
+
+const int kPacketBufSize = 8192; // this seems to be the maximum size of a UDP packet
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+#endif
+