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Simplify the networking code.

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This commit is contained in:
Jonathan Naylor 2018-03-22 20:41:18 +00:00
parent d1acca25a3
commit 2c43f0e035
9 changed files with 13 additions and 339 deletions
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43
P25Parrot/Network.cpp
View File

@ -27,8 +27,7 @@ const unsigned int BUFFER_LENGTH = 200U;
CNetwork::CNetwork(unsigned int port) :
m_socket(port),
m_address(),
m_port(0U),
m_buffer(1000U, "P25 Network")
m_port(0U)
{
}
@ -53,44 +52,26 @@ bool CNetwork::write(const unsigned char* data, unsigned int length)
return m_socket.write(data, length, m_address, m_port);
}
void CNetwork::clock(unsigned int ms)
unsigned int CNetwork::read(unsigned char* data)
{
unsigned char buffer[BUFFER_LENGTH];
in_addr address;
unsigned int port;
int length = m_socket.read(buffer, BUFFER_LENGTH, address, port);
int length = m_socket.read(data, BUFFER_LENGTH, address, port);
if (length <= 0)
return;
return 0U;
m_address.s_addr = address.s_addr;
m_port = port;
if (buffer[0U] == 0xF0U) { // A poll
write(buffer, length);
} else if (buffer[0U] == 0xF1U) { // An unlink
// Nothing to do
} else {
unsigned char l = length;
m_buffer.addData(&l, 1U);
m_buffer.addData(buffer, length);
}
}
unsigned int CNetwork::read(unsigned char* data)
{
assert(data != NULL);
if (m_buffer.isEmpty())
if (data[0U] == 0xF0U) { // A poll
write(data, length);
return 0U;
unsigned char len = 0U;
m_buffer.getData(&len, 1U);
m_buffer.getData(data, len);
return len;
} else if (data[0U] == 0xF1U) { // An unlink
// Nothing to do
return 0U;
} else {
return length;
}
}
void CNetwork::end()

6
P25Parrot/Network.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2009-2014,2016 by Jonathan Naylor G4KLX
* Copyright (C) 2009-2014,2016,2018 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
@ -19,7 +19,6 @@
#ifndef Network_H
#define Network_H
#include "RingBuffer.h"
#include "UDPSocket.h"
#include <cstdint>
@ -40,13 +39,10 @@ public:
void close();
void clock(unsigned int ms);
private:
CUDPSocket m_socket;
in_addr m_address;
unsigned int m_port;
CRingBuffer<unsigned char> m_buffer;
};
#endif

1
P25Parrot/P25Parrot.cpp
View File

@ -119,7 +119,6 @@ void CP25Parrot::run()
unsigned int ms = stopWatch.elapsed();
stopWatch.start();
network.clock(ms);
watchdogTimer.clock(ms);
turnaroundTimer.clock(ms);

1
P25Parrot/P25Parrot.vcxproj
View File

@ -149,7 +149,6 @@
<ClInclude Include="Network.h" />
<ClInclude Include="P25Parrot.h" />
<ClInclude Include="Parrot.h" />
<ClInclude Include="RingBuffer.h" />
<ClInclude Include="StopWatch.h" />
<ClInclude Include="Thread.h" />
<ClInclude Include="Timer.h" />

3
P25Parrot/P25Parrot.vcxproj.filters
View File

@ -20,9 +20,6 @@
<ClInclude Include="Parrot.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="RingBuffer.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="StopWatch.h">
<Filter>Header Files</Filter>
</ClInclude>

147
P25Parrot/RingBuffer.h
View File

@ -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

1
P25Reflector/P25Reflector.vcxproj
View File

@ -25,7 +25,6 @@
<ClInclude Include="Mutex.h" />
<ClInclude Include="Network.h" />
<ClInclude Include="P25Reflector.h" />
<ClInclude Include="RingBuffer.h" />
<ClInclude Include="StopWatch.h" />
<ClInclude Include="Thread.h" />
<ClInclude Include="Timer.h" />

3
P25Reflector/P25Reflector.vcxproj.filters
View File

@ -29,9 +29,6 @@
<ClInclude Include="P25Reflector.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="RingBuffer.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="StopWatch.h">
<Filter>Header Files</Filter>
</ClInclude>

147
P25Reflector/RingBuffer.h
View File

@ -1,147 +0,0 @@
/*
* Copyright (C) 2006-2009,2012,2013,2015,2016 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