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// -*- c++ -*-
// Generated by assa-genesis
//------------------------------------------------------------------------------
// $Id: echos.cpp,v 1.5 2005/10/08 02:42:01 vlg Exp $
//------------------------------------------------------------------------------
// EchoSvr.cpp
//------------------------------------------------------------------------------
// Copyright (c) 2002,2005 by Vladislav Grinchenko
//
// 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.
//------------------------------------------------------------------------------
//
// Date : Wed Dec 11 11:43:20 2002
//
//------------------------------------------------------------------------------
static const char help_msg[]=
" \n"
" NAME: \n"
" \n"
" echos - simple echo server \n"
" \n"
" DESCRIPTION: \n"
" \n"
" echos replaces UNIX echo service. All input is reflected back to the \n"
" sender as-is. \n"
" \n"
" USAGE: \n"
" \n"
" shell> echos [OPTIONS] \n"
" \n"
" OPTIONS: \n"
" \n"
" -b, --daemon - Run process as true UNIX daemon \n"
" -l, --pidfile PATH - The process ID is written to the lockfile PATH \n"
" instead of default ~/.{procname}.pid \n"
" -L, --no-pidfile - Do not create PID lockfile \n"
" \n"
" -D, --log-file NAME - Write debug to NAME file \n"
" -d, --log-stdout - Write debug to standard output \n"
" -z, --log-size NUM - Maximum size debug file can reach (dfl: is 10Mb) \n"
" \n"
" -m, --mask MASK - Mask (default: ALL = 0x7fffffff) \n"
" -p, --port NAME - The tcp/ip port NAME (default - procname) \n"
" -n, --instance NUM - Process instance NUM (default - none) \n"
" \n"
" -h, --help - Print this messag \n"
" -v, --version - Print version number \n";
//------------------------------------------------------------------------------
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <string>
using std::string;
#include <assa/GenServer.h>
#include <assa/Singleton.h>
#include <assa/TimeVal.h>
#include <assa/Acceptor.h>
#include <assa/ServiceHandler.h>
#include <assa/IPv4Socket.h>
#include <assa/INETAddress.h>
using namespace ASSA;
/******************************************************************************/
class Reflector : public ServiceHandler<IPv4Socket>
{
public:
Reflector (IPv4Socket* s_)
: ServiceHandler<IPv4Socket> (s_) { /* no-op */ }
virtual int open ();
virtual int handle_read (int fd_);
virtual int handle_close (int /* fd */) { delete (this); return 0; }
};
/******************************************************************************/
class EchoSvr :
public ASSA::GenServer,
public ASSA::Singleton<EchoSvr>
{
public:
EchoSvr ();
virtual void init_service ();
virtual void process_events ();
int get_exit_value () const { return m_exit_value; }
void set_exit_value (int v_) { m_exit_value = v_; }
private:
int m_exit_value; // Return status of the process
Acceptor<Reflector, IPv4Socket>* m_acceptor;
};
/* Useful definitions */
#define ECHOSVR EchoSvr::get_instance()
#define REACTOR ECHOSVR->get_reactor()
// Static declarations mandated by Singleton class
ASSA_DECL_SINGLETON(EchoSvr);
/******************************************************************************/
/*******************************************************************************
Reflector member functions
******************************************************************************/
int
Reflector::
open ()
{
REACTOR->registerIOHandler (this, get_stream ().getHandler (), READ_EVENT);
return 0;
}
int
Reflector::
handle_read (int fd_)
{
IPv4Socket& s = *this;
if (s.getHandler () != fd_) {
return -1;
}
char c;
int ret;
while ((ret = s.read (&c, 1) == 1)) {
if (s.write (&c, 1) != 1) {
break;
}
}
s << ASSA::flush;
return BYTES_LEFT_IN_SOCKBUF(s);
}
/*******************************************************************************
EchoSvr member functions
******************************************************************************/
EchoSvr::
EchoSvr () :
m_exit_value (0)
{
// ---Configuration---
rm_opt ('f', "config-file" );
/*---
* By defauil disable all debugging
*---*/
m_mask = ASSA::APP;
m_log_file = "echos.log";
}
void
EchoSvr::
init_service ()
{
trace("EchoSvr::init_service");
m_acceptor = new Acceptor<Reflector, IPv4Socket> (&m_reactor);
ASSA::INETAddress address (get_port ().c_str ());
Assure_exit (!address.bad ());
Assure_exit (m_acceptor->open (address) == 0);
DL((ASSA::APP,"Service has been initialized\n"));
}
void
EchoSvr::
process_events ()
{
trace("EchoSvr::process_events");
while (service_is_active ()) {
m_reactor.waitForEvents ();
}
// Shut the service down
m_reactor.stopReactor ();
DL((ASSA::APP,"Service stopped!\n"));
}
int
main (int argc, char* argv[])
{
static const char release[] = "1.0";
int patch_level = 0;
ECHOSVR->set_version (release, patch_level);
ECHOSVR->set_author ("Vladislav Grinchenko");
ECHOSVR->set_flags (ASSA::GenServer::RMLOG);
ECHOSVR->init (&argc, argv, help_msg);
ECHOSVR->init_service ();
ECHOSVR->process_events ();
return ECHOSVR->get_exit_value ();
}
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