mirror of
https://github.com/g4klx/ircDDBGateway.git
synced 2026-04-06 14:53:52 +00:00
Initial commit.
This commit is contained in:
Jonathan Naylor
commit
12d55cef37
430 changed files with 72067 additions and 0 deletions
319
Common/TCPReaderWriterServer.cpp
Normal file
319
Common/TCPReaderWriterServer.cpp
Normal file
|
|
@ -0,0 +1,319 @@
|
|||
/*
|
||||
* Copyright (C) 2011,2014 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.
|
||||
*/
|
||||
|
||||
#include "TCPReaderWriterServer.h"
|
||||
|
||||
#if !defined(__WINDOWS__)
|
||||
#include <cerrno>
|
||||
#endif
|
||||
|
||||
|
||||
CTCPReaderWriterServer::CTCPReaderWriterServer(const wxString& address, unsigned int port) :
|
||||
wxThread(wxTHREAD_JOINABLE),
|
||||
m_address(address),
|
||||
m_port(port),
|
||||
m_fd(-1),
|
||||
m_client(NULL),
|
||||
m_stopped(false)
|
||||
{
|
||||
wxASSERT(port > 0U);
|
||||
|
||||
#if defined(__WINDOWS__)
|
||||
WSAData data;
|
||||
int wsaRet = ::WSAStartup(MAKEWORD(2, 2), &data);
|
||||
if (wsaRet != 0)
|
||||
wxLogError(wxT("Error from WSAStartup"));
|
||||
#endif
|
||||
}
|
||||
|
||||
CTCPReaderWriterServer::~CTCPReaderWriterServer()
|
||||
{
|
||||
#if defined(__WINDOWS__)
|
||||
::WSACleanup();
|
||||
#endif
|
||||
}
|
||||
|
||||
bool CTCPReaderWriterServer::start()
|
||||
{
|
||||
bool ret = open();
|
||||
if (!ret) {
|
||||
close();
|
||||
return false;
|
||||
}
|
||||
|
||||
Create();
|
||||
Run();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
int CTCPReaderWriterServer::read(unsigned char* buffer, unsigned int length, unsigned int secs)
|
||||
{
|
||||
wxASSERT(buffer != NULL);
|
||||
wxASSERT(length > 0U);
|
||||
|
||||
if (m_client != NULL) {
|
||||
int ret = m_client->read(buffer, length, secs);
|
||||
if (ret < 0) {
|
||||
wxLogMessage(wxT("Lost TCP connection to port %u"), m_port);
|
||||
|
||||
m_client->close();
|
||||
delete m_client;
|
||||
m_client = NULL;
|
||||
|
||||
open();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
bool CTCPReaderWriterServer::write(const unsigned char* buffer, unsigned int length)
|
||||
{
|
||||
wxASSERT(buffer != NULL);
|
||||
wxASSERT(length > 0U);
|
||||
|
||||
if (m_client != NULL) {
|
||||
bool ret = m_client->write(buffer, length);
|
||||
if (!ret) {
|
||||
wxLogMessage(wxT("Lost TCP connection to port %u"), m_port);
|
||||
|
||||
m_client->close();
|
||||
delete m_client;
|
||||
m_client = NULL;
|
||||
|
||||
open();
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
void* CTCPReaderWriterServer::Entry()
|
||||
{
|
||||
try {
|
||||
while (!m_stopped) {
|
||||
int ret = accept();
|
||||
switch (ret) {
|
||||
case -2:
|
||||
break;
|
||||
case -1:
|
||||
break;
|
||||
default:
|
||||
wxLogMessage(wxT("Incoming TCP connection to port %u"), m_port);
|
||||
m_client = new CTCPReaderWriterClient(ret);
|
||||
close();
|
||||
break;
|
||||
}
|
||||
|
||||
Sleep(1000UL);
|
||||
}
|
||||
|
||||
if (m_client != NULL) {
|
||||
m_client->close();
|
||||
delete m_client;
|
||||
}
|
||||
|
||||
close();
|
||||
}
|
||||
catch (std::exception& e) {
|
||||
wxString message(e.what(), wxConvLocal);
|
||||
wxLogError(wxT("Exception raised in the TCP Reader-Writer Server thread - \"%s\""), message.c_str());
|
||||
}
|
||||
catch (...) {
|
||||
wxLogError(wxT("Unknown exception raised in the TCP Reader-Writer Server thread"));
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void CTCPReaderWriterServer::stop()
|
||||
{
|
||||
m_stopped = true;
|
||||
|
||||
Wait();
|
||||
}
|
||||
|
||||
bool CTCPReaderWriterServer::open()
|
||||
{
|
||||
m_fd = ::socket(PF_INET, SOCK_STREAM, 0);
|
||||
if (m_fd < 0) {
|
||||
#if defined(__WINDOWS__)
|
||||
wxLogError(wxT("Cannot create the TCP server socket, err=%d"), ::GetLastError());
|
||||
#else
|
||||
wxLogError(wxT("Cannot create the TCP server socket, err=%d"), errno);
|
||||
#endif
|
||||
return false;
|
||||
}
|
||||
|
||||
struct sockaddr_in addr;
|
||||
::memset(&addr, 0x00, sizeof(struct sockaddr_in));
|
||||
addr.sin_family = AF_INET;
|
||||
addr.sin_port = htons(m_port);
|
||||
if (m_address.IsEmpty())
|
||||
addr.sin_addr.s_addr = htonl(INADDR_ANY);
|
||||
else
|
||||
addr.sin_addr = lookup(m_address);
|
||||
|
||||
if (addr.sin_addr.s_addr == INADDR_NONE) {
|
||||
wxLogError(wxT("The address is invalid - %s"), m_address.c_str());
|
||||
close();
|
||||
return false;
|
||||
}
|
||||
|
||||
int reuse = 1;
|
||||
if (::setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, sizeof(reuse)) == -1) {
|
||||
#if defined(__WINDOWS__)
|
||||
wxLogError(wxT("Cannot set the TCP server socket option, err=%d"), ::GetLastError());
|
||||
#else
|
||||
wxLogError(wxT("Cannot set the TCP server socket option, err=%d"), errno);
|
||||
#endif
|
||||
close();
|
||||
return false;
|
||||
}
|
||||
|
||||
if (::bind(m_fd, (sockaddr*)&addr, sizeof(struct sockaddr_in)) == -1) {
|
||||
#if defined(__WINDOWS__)
|
||||
wxLogError(wxT("Cannot bind the TCP server address, err=%d"), ::GetLastError());
|
||||
#else
|
||||
wxLogError(wxT("Cannot bind the TCP server address, err=%d"), errno);
|
||||
#endif
|
||||
close();
|
||||
return false;
|
||||
}
|
||||
|
||||
::listen(m_fd, 5);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
int CTCPReaderWriterServer::accept()
|
||||
{
|
||||
if (m_fd == -1)
|
||||
return -1;
|
||||
|
||||
// Check that the accept() won't block
|
||||
fd_set readFds;
|
||||
FD_ZERO(&readFds);
|
||||
#if defined(__WINDOWS__)
|
||||
FD_SET((unsigned int)m_fd, &readFds);
|
||||
#else
|
||||
FD_SET(m_fd, &readFds);
|
||||
#endif
|
||||
|
||||
// Return after timeout
|
||||
timeval tv;
|
||||
tv.tv_sec = 0L;
|
||||
tv.tv_usec = 0L;
|
||||
|
||||
int ret = ::select(m_fd + 1, &readFds, NULL, NULL, &tv);
|
||||
if (ret < 0) {
|
||||
#if defined(__WINDOWS__)
|
||||
wxLogError(wxT("Error returned from TCP server select, err=%d"), ::GetLastError());
|
||||
#else
|
||||
wxLogError(wxT("Error returned from TCP server select, err=%d"), errno);
|
||||
#endif
|
||||
return -2;
|
||||
}
|
||||
|
||||
#if defined(__WINDOWS__)
|
||||
if (!FD_ISSET((unsigned int)m_fd, &readFds))
|
||||
return -1;
|
||||
#else
|
||||
if (!FD_ISSET(m_fd, &readFds))
|
||||
return -1;
|
||||
#endif
|
||||
|
||||
struct sockaddr_in addr;
|
||||
#if defined(__WINDOWS__)
|
||||
int len = sizeof(struct sockaddr_in);
|
||||
#else
|
||||
socklen_t len = sizeof(struct sockaddr_in);
|
||||
#endif
|
||||
|
||||
ret = ::accept(m_fd, (sockaddr*)&addr, &len);
|
||||
if (ret < 0) {
|
||||
#if defined(__WINDOWS__)
|
||||
wxLogError(wxT("Error returned from TCP server accept, err=%d"), ::GetLastError());
|
||||
#else
|
||||
wxLogError(wxT("Error returned from TCP server accept, err=%d"), errno);
|
||||
#endif
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
void CTCPReaderWriterServer::close()
|
||||
{
|
||||
if (m_fd != -1) {
|
||||
#if defined(__WINDOWS__)
|
||||
::closesocket(m_fd);
|
||||
#else
|
||||
::close(m_fd);
|
||||
#endif
|
||||
m_fd = -1;
|
||||
}
|
||||
}
|
||||
|
||||
in_addr CTCPReaderWriterServer::lookup(const wxString& hostname) const
|
||||
{
|
||||
in_addr addr;
|
||||
#if defined(WIN32)
|
||||
unsigned long address = ::inet_addr(hostname.mb_str());
|
||||
if (address != INADDR_NONE && address != INADDR_ANY) {
|
||||
addr.s_addr = address;
|
||||
return addr;
|
||||
}
|
||||
|
||||
struct hostent* hp = ::gethostbyname(hostname.mb_str());
|
||||
if (hp != NULL) {
|
||||
::memcpy(&addr, hp->h_addr_list[0], hp->h_length);
|
||||
return addr;
|
||||
}
|
||||
|
||||
wxLogError(wxT("Cannot find %s"), hostname.c_str());
|
||||
|
||||
addr.s_addr = INADDR_NONE;
|
||||
return addr;
|
||||
#else
|
||||
in_addr_t address = ::inet_addr(hostname.mb_str());
|
||||
if (address != in_addr_t(-1)) {
|
||||
addr.s_addr = address;
|
||||
return addr;
|
||||
}
|
||||
|
||||
struct hostent* hp = ::gethostbyname(hostname.mb_str());
|
||||
if (hp != NULL) {
|
||||
::memcpy(&addr, hp->h_addr_list[0], hp->h_length);
|
||||
return addr;
|
||||
}
|
||||
|
||||
wxLogError(wxT("Cannot find %s"), hostname.c_str());
|
||||
|
||||
addr.s_addr = INADDR_NONE;
|
||||
return addr;
|
||||
#endif
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue