Simlify the Icom networking section.

NXDNGateway/Conf.cpp

@@ -40,7 +40,6 @@ m_file(file),
 m_callsign(),
 m_rptAddress(),
 m_rptPort(0U),
-m_myAddress(),
 m_myPort(0U),
 m_rptDebug(false),
 m_daemon(false),
@@ -114,8 +113,6 @@ bool CConf::read()
 			  m_rptAddress = value;
 		  else if (::strcmp(key, "RptPort") == 0)
 			  m_rptPort = (unsigned int)::atoi(value);
-		  else if (::strcmp(key, "LocalAddress") == 0)
-			  m_myAddress = value;
 		  else if (::strcmp(key, "LocalPort") == 0)
 			  m_myPort = (unsigned int)::atoi(value);
 		  else if (::strcmp(key, "Debug") == 0)
@@ -181,11 +178,6 @@ unsigned int CConf::getRptPort() const
 	return m_rptPort;
 }
 
-std::string CConf::getMyAddress() const
-{
-	return m_myAddress;
-}
-
 unsigned int CConf::getMyPort() const
 {
 	return m_myPort;

NXDNGateway/Conf.h

@@ -34,7 +34,6 @@ public:
   std::string  getCallsign() const;
   std::string  getRptAddress() const;
   unsigned int getRptPort() const;
-  std::string  getMyAddress() const;
   unsigned int getMyPort() const;
   bool         getRptDebug() const;
   bool         getDaemon() const;
@@ -68,7 +67,6 @@ private:
   std::string  m_callsign;
   std::string  m_rptAddress;
   unsigned int m_rptPort;
-  std::string  m_myAddress;
   unsigned int m_myPort;
   bool         m_rptDebug;
   bool         m_daemon;

NXDNGateway/IcomNetwork.cpp

@@ -26,17 +26,10 @@
 
 const unsigned int BUFFER_LENGTH = 200U;
 
-CIcomNetwork::CIcomNetwork(const std::string& localAddress, unsigned int localPort, const std::string& gatewayAddress, unsigned int gatewayPort, bool debug) :
+CIcomNetwork::CIcomNetwork(unsigned int localPort, bool debug) :
-m_socket(localAddress, localPort),
+m_socket(localPort),
-m_address(),
+m_debug(debug)
-m_port(gatewayPort),
-m_debug(debug),
-m_buffer(1000U, "Icom")
 {
-	assert(gatewayPort > 0U);
-	assert(!gatewayAddress.empty());
-
-	m_address = CUDPSocket::lookup(gatewayAddress);
 }
 
 CIcomNetwork::~CIcomNetwork()
@@ -53,7 +46,7 @@ bool CIcomNetwork::open()
 	return m_socket.open();
 }
 
-bool CIcomNetwork::write(const unsigned char* data, unsigned int length)
+bool CIcomNetwork::write(const unsigned char* data, unsigned int length, const in_addr& address, unsigned int port)
 {
 	assert(data != NULL);
 
@@ -78,22 +71,22 @@ bool CIcomNetwork::write(const unsigned char* data, unsigned int length)
 	if (m_debug)
 		CUtils::dump(1U, "Icom Data Sent", buffer, 102U);
 
-	return m_socket.write(buffer, 102U, m_address, m_port);
+	return m_socket.write(buffer, 102U, address, port);
 }
 
-void CIcomNetwork::clock(unsigned int ms)
+bool CIcomNetwork::read(unsigned char* data, in_addr& address, unsigned int& port)
 {
+	assert(data != NULL);
+
 	unsigned char buffer[BUFFER_LENGTH];
 
-	in_addr address;
-	unsigned int port;
 	int length = m_socket.read(buffer, BUFFER_LENGTH, address, port);
 	if (length <= 0)
-		return;
+		return false;
 
 	// Invalid packet type?
 	if (::memcmp(buffer, "ICOM", 4U) != 0)
-		return;
+		return false;
 
 	// An Icom repeater connect request
 	if (buffer[4U] == 0x01U && buffer[5U] == 0x61U) {
@@ -101,27 +94,17 @@ void CIcomNetwork::clock(unsigned int ms)
 		buffer[37U] = 0x02U;
 		buffer[38U] = 0x4FU;
 		buffer[39U] = 0x4BU;
-		m_socket.write(buffer, length, m_address, m_port);
+		m_socket.write(buffer, length, address, port);
-		return;
+		return false;
 	}
 
 	if (length != 102)
-		return;
+		return false;
 
 	if (m_debug)
 		CUtils::dump(1U, "Icom Data Received", buffer, length);
 
-	m_buffer.addData(buffer + 40U, 33U);
+	::memcpy(data, buffer + 40U, 33U);
-}
-
-bool CIcomNetwork::read(unsigned char* data)
-{
-	assert(data != NULL);
-
-	if (m_buffer.isEmpty())
-		return false;
-
-	m_buffer.getData(data, 33U);
 
 	return true;
 }

NXDNGateway/IcomNetwork.h

@@ -19,7 +19,6 @@
 #ifndef	IcomNetwork_H
 #define	IcomNetwork_H
 
-#include "RingBuffer.h"
 #include "UDPSocket.h"
 #include "Timer.h"
 
@@ -28,25 +27,22 @@
 
 class CIcomNetwork {
 public:
-	CIcomNetwork(const std::string& localAddress, unsigned int localPort, const std::string& gatewayAddress, unsigned int gatewayPort, bool debug);
+	CIcomNetwork(unsigned int localPort, bool debug);
 	~CIcomNetwork();
 
 	bool open();
 
-	bool write(const unsigned char* data, unsigned int length);
+	bool write(const unsigned char* data, unsigned int length, const in_addr& address, unsigned int port);
 
-	bool read(unsigned char* data);
+	bool read(unsigned char* data, in_addr& address, unsigned int& port);
 
 	void close();
 
-	void clock(unsigned int ms);
-
 private:
-	CUDPSocket                 m_socket;
+	CUDPSocket   m_socket;
-	in_addr                    m_address;
+	in_addr      m_address;
-	unsigned int               m_port;
+	unsigned int m_port;
-	bool                       m_debug;
+	bool         m_debug;
-	CRingBuffer<unsigned char> m_buffer;
 };
 
 #endif

NXDNGateway/NXDNGateway.cpp

@@ -161,7 +161,10 @@ void CNXDNGateway::run()
 	}
 #endif
 
-	CIcomNetwork localNetwork(m_conf.getMyAddress(), m_conf.getMyPort(), m_conf.getRptAddress(), m_conf.getRptPort(), m_conf.getRptDebug());
+	in_addr rptAddr = CUDPSocket::lookup(m_conf.getRptAddress());
+	unsigned int rptPort = m_conf.getRptPort();
+
+	CIcomNetwork localNetwork(m_conf.getMyPort(), m_conf.getRptDebug());
 	ret = localNetwork.open();
 	if (!ret) {
 		::LogFinalise();
@@ -243,7 +246,7 @@ void CNXDNGateway::run()
 			if (currentId != 9999U && currentAddr.s_addr == address.s_addr && currentPort == port) {
 				// Don't pass reflector control data through to the MMDVM
 				if (::memcmp(buffer, "NXDND", 5U) == 0)
-					localNetwork.write(buffer + 10U, len - 10U);
+					localNetwork.write(buffer + 10U, len - 10U, rptAddr, rptPort);
 
 				// Any network activity is proof that the reflector is alive
 				lostTimer.start();
@@ -251,7 +254,7 @@ void CNXDNGateway::run()
 		}
 
 		// From the MMDVM to the reflector or control data
-		len = localNetwork.read(buffer);
+		len = localNetwork.read(buffer, address, port);
 		if (len > 0U) {
 			if (buffer[0U] == 0x81U || buffer[0U] == 0x83U) {
 				grp = (buffer[7U] & 0x20U) == 0x20U;
@@ -322,7 +325,7 @@ void CNXDNGateway::run()
 		if (voice != NULL) {
 			unsigned int length = voice->read(buffer);
 			if (length > 0U)
-				localNetwork.write(buffer, length);
+				localNetwork.write(buffer, length, rptAddr, rptPort);
 		}
 
 		unsigned int ms = stopWatch.elapsed();
@@ -371,8 +374,6 @@ void CNXDNGateway::run()
 			lostTimer.stop();
 		}
 
-		localNetwork.clock(ms);
-
 		if (ms < 5U)
 			CThread::sleep(5U);
 	}

NXDNGateway/NXDNGateway.ini

@@ -2,7 +2,6 @@
 Callsign=G4KLX
 RptAddress=127.0.0.1
 RptPort=14021
-LocalAddress=127.0.0.1
 LocalPort=14020
 Debug=0
 Daemon=1

NXDNGateway/NXDNGateway.vcxproj

@@ -155,7 +155,6 @@
     <ClInclude Include="NXDNLookup.h" />
     <ClInclude Include="NXDNNetwork.h" />
     <ClInclude Include="Reflectors.h" />
-    <ClInclude Include="RingBuffer.h" />
     <ClInclude Include="StopWatch.h" />
     <ClInclude Include="Thread.h" />
     <ClInclude Include="Timer.h" />

NXDNGateway/NXDNGateway.vcxproj.filters

@@ -53,9 +53,6 @@
     <ClInclude Include="NXDNNetwork.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="RingBuffer.h">
-      <Filter>Header Files</Filter>
-    </ClInclude>
     <ClInclude Include="Voice.h">
       <Filter>Header Files</Filter>
     </ClInclude>

NXDNGateway/RingBuffer.h

@@ -1,147 +0,0 @@
-/*
- *   Copyright (C) 2006-2009,2012,2013,2015,2016,2018 by Jonathan Naylor G4KLX
- *
- *   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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef RingBuffer_H
-#define RingBuffer_H
-
-#include <cstdio>
-#include <cassert>
-#include <cstring>
-
-template<class T> class CRingBuffer {
-public:
-	CRingBuffer(unsigned int length, const char* name) :
-	m_length(length),
-	m_name(name),
-	m_buffer(NULL),
-	m_iPtr(0U),
-	m_oPtr(0U)
-	{
-		assert(length > 0U);
-		assert(name != NULL);
-
-		m_buffer = new T[length];
-
-		::memset(m_buffer, 0x00, m_length * sizeof(T));
-	}
-
-	~CRingBuffer()
-	{
-		delete[] m_buffer;
-	}
-
-	bool addData(const T* buffer, unsigned int nSamples)
-	{
-		if (nSamples >= freeSpace()) {
-			::fprintf(stderr, "**** Overflow in %s ring buffer, %u >= %u\n", m_name, nSamples, freeSpace());
-			return false;
-		}
-
-		for (unsigned int i = 0U; i < nSamples; i++) {
-			m_buffer[m_iPtr++] = buffer[i];
-
-			if (m_iPtr == m_length)
-				m_iPtr = 0U;
-		}
-
-		return true;
-	}
-
-	bool getData(T* buffer, unsigned int nSamples)
-	{
-		if (dataSize() < nSamples) {
-			::fprintf(stderr, "**** Underflow in %s ring buffer, %u < %u\n", m_name, dataSize(), nSamples);
-			return false;
-		}
-
-		for (unsigned int i = 0U; i < nSamples; i++) {
-			buffer[i] = m_buffer[m_oPtr++];
-
-			if (m_oPtr == m_length)
-				m_oPtr = 0U;
-		}
-
-		return true;
-	}
-
-	bool peek(T* buffer, unsigned int nSamples)
-	{
-		if (dataSize() < nSamples) {
-			::fprintf(stderr, "**** Underflow peek in %s ring buffer, %u < %u\n", m_name, dataSize(), nSamples);
-			return false;
-		}
-
-		unsigned int ptr = m_oPtr;
-		for (unsigned int i = 0U; i < nSamples; i++) {
-			buffer[i] = m_buffer[ptr++];
-
-			if (ptr == m_length)
-				ptr = 0U;
-		}
-
-		return true;
-	}
-
-	void clear()
-	{
-		m_iPtr = 0U;
-		m_oPtr = 0U;
-
-		::memset(m_buffer, 0x00, m_length * sizeof(T));
-	}
-
-	unsigned int freeSpace() const
-	{
-		if (m_oPtr == m_iPtr)
-			return m_length;
-
-		if (m_oPtr > m_iPtr)
-			return m_oPtr - m_iPtr;
-
-		return (m_length + m_oPtr) - m_iPtr;
-	}
-
-	unsigned int dataSize() const
-	{
-		return m_length - freeSpace();
-	}
-
-	bool hasSpace(unsigned int length) const
-	{
-		return freeSpace() > length;
-	}
-
-	bool hasData() const
-	{
-		return m_oPtr != m_iPtr;
-	}
-
-	bool isEmpty() const
-	{
-		return m_oPtr == m_iPtr;
-	}
-
-private:
-	unsigned int m_length;
-	const char*  m_name;
-	T*           m_buffer;
-	unsigned int m_iPtr;
-	unsigned int m_oPtr;
-};
-
-#endif