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SimplePocoHandler.cpp
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executable file
·204 lines (174 loc) · 4.74 KB
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#include "SimplePocoHandler.h"
#include <vector>
#include <thread>
#include <chrono>
#include <cstring>
#include <cassert>
#include <iostream>
#include <Poco/Net/StreamSocket.h>
namespace
{
class Buffer
{
public:
Buffer(size_t size) :
m_data(size, 0),
m_use(0)
{
}
size_t write(const char* data, size_t size)
{
if (m_use == m_data.size())
{
return 0;
}
const size_t length = (size + m_use);
size_t write =
length < m_data.size() ? size : m_data.size() - m_use;
memcpy(m_data.data() + m_use, data, write);
m_use += write;
return write;
}
void drain()
{
m_use = 0;
}
size_t available() const
{
return m_use;
}
const char* data() const
{
return m_data.data();
}
void shl(size_t count)
{
assert(count<m_use);
const size_t diff = m_use - count;
std::memmove(m_data.data(), m_data.data()+count, diff);
m_use = m_use - count;
}
private:
std::vector<char> m_data;
size_t m_use;
};
}
struct SimplePocoHandlerImpl
{
SimplePocoHandlerImpl() :
connected(false),
connection(nullptr),
quit(false),
inputBuffer(SimplePocoHandler::BUFFER_SIZE),
outBuffer(SimplePocoHandler::BUFFER_SIZE),
tmpBuff(SimplePocoHandler::TEMP_BUFFER_SIZE)
{
}
Poco::Net::StreamSocket socket;
bool connected;
AMQP::Connection* connection;
bool quit;
Buffer inputBuffer;
Buffer outBuffer;
std::vector<char> tmpBuff;
};
SimplePocoHandler::SimplePocoHandler(const std::string& host, uint16_t port) :
m_impl(new SimplePocoHandlerImpl)
{
const Poco::Net::SocketAddress address(host, port);
m_impl->socket.connect(address);
m_impl->socket.setKeepAlive(true);
}
SimplePocoHandler::~SimplePocoHandler()
{
close();
}
void SimplePocoHandler::loop()
{
m_impl->quit = false;
try
{
while (!m_impl->quit)
{
if (m_impl->socket.available() > 0)
{
size_t avail = m_impl->socket.available();
if(m_impl->tmpBuff.size()<avail)
{
m_impl->tmpBuff.resize(avail,0);
}
m_impl->socket.receiveBytes(&m_impl->tmpBuff[0], avail);
m_impl->inputBuffer.write(m_impl->tmpBuff.data(), avail);
}
if(m_impl->socket.available()<0)
{
std::cerr<<"SOME socket error!!!"<<std::endl;
}
if (m_impl->connection && m_impl->inputBuffer.available())
{
size_t count = m_impl->connection->parse(m_impl->inputBuffer.data(),
m_impl->inputBuffer.available());
if (count == m_impl->inputBuffer.available())
{
m_impl->inputBuffer.drain();
} else if(count >0 ){
m_impl->inputBuffer.shl(count);
}
}
sendDataFromBuffer();
std::this_thread::sleep_for(std::chrono::milliseconds(2));
}
if (m_impl->quit && m_impl->outBuffer.available())
{
sendDataFromBuffer();
}
} catch (const Poco::Exception& exc)
{
std::cerr<< "Poco exception " << exc.displayText();
}
}
void SimplePocoHandler::quit()
{
m_impl->quit = true;
}
void SimplePocoHandler::SimplePocoHandler::close()
{
m_impl->socket.close();
}
void SimplePocoHandler::onData(
AMQP::Connection *connection, const char *data, size_t size)
{
m_impl->connection = connection;
const size_t writen = m_impl->outBuffer.write(data, size);
if (writen != size)
{
sendDataFromBuffer();
m_impl->outBuffer.write(data + writen, size - writen);
}
}
void SimplePocoHandler::onReady(AMQP::Connection *connection)
{
m_impl->connected = true;
}
void SimplePocoHandler::onError(
AMQP::Connection *connection, const char *message)
{
std::cerr<<"AMQP error "<<message<<std::endl;
}
void SimplePocoHandler::onClosed(AMQP::Connection *connection)
{
std::cout<<"AMQP closed connection"<<std::endl;
m_impl->quit = true;
}
bool SimplePocoHandler::connected() const
{
return m_impl->connected;
}
void SimplePocoHandler::sendDataFromBuffer()
{
if (m_impl->outBuffer.available())
{
m_impl->socket.sendBytes(m_impl->outBuffer.data(), m_impl->outBuffer.available());
m_impl->outBuffer.drain();
}
}