#if HAVE_CRT
 #define _CRTDBG_MAP_ALLOC 
 #include <stdlib.h> 
 #include <crtdbg.h>
 #endif //HAVE_CRT
 /*
 * Copyright (C) 2017, University of the Basque Country (UPV/EHU)
 * Contact for licensing options: <licensing-mcpttclient(at)mcopenplatform(dot)com>
 *
 * The original file was part of Open Source Doubango Framework
 * Copyright (C) 2010-2011 Mamadou Diop.
 * Copyright (C) 2012 Doubango Telecom <http://doubango.org>
 *
 * This file is part of Open Source Doubango Framework.
 *
 * DOUBANGO 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 3 of the License, or
 * (at your option) any later version.
 *
 * DOUBANGO 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 DOUBANGO.
 *
 */
 
 #include "tnet_poll.h"
 
 #if USE_POLL && (!HAVE_POLL || !HAVE_POLL_H)
 
 /**
  *
  * @brief	poll() method implementation for multiplexing network sockets. 
  *
  * @param	fds		An array of pollfd structures. 
  * @param	nfds	The number of file descriptors set in fds[ ]. 
  * @param	timeout	How long poll() should wait for an event to occur (in milliseconds). 
  *
  * @return	The number of elements in fdarray for which an revents member of the POLLFD structure is nonzero.
  *			If the the returned value if <0 this mean that error occurred.
 **/
 
 int tnet_poll(tnet_pollfd_t fds[ ], tnet_nfds_t nfds, int timeout)
 {
 	tsk_size_t i;
 	int ret;
 	int highest_fd = -1;
 
 	fd_set readfds;
 	fd_set writefds;
 	fd_set exceptfds;
 	struct timeval timetowait;
 
 	/*
 	* cleanup fd_sets
 	*/
 	FD_ZERO(&readfds);
 	FD_ZERO(&writefds);
 	FD_ZERO(&exceptfds);
 
 	/*
 	*	set timeout
 	*/
 	if(timeout >=0){
 		timetowait.tv_sec = (timeout/1000);
 		timetowait.tv_usec = (timeout%1000) * 1000;
 	}
 
 	/*
 	* add descriptors to the fd_sets
 	*/
 	for(i = 0; i<nfds; i++){
 		if(fds[i].fd != TNET_INVALID_FD){
 			if(fds[i].events & TNET_POLLIN){
 				FD_SET(fds[i].fd, &readfds);
 			}
 			if(fds[i].events & TNET_POLLOUT){
 				FD_SET(fds[i].fd, &writefds);
 			}
 			if(fds[i].events & TNET_POLLPRI){
 				FD_SET(fds[i].fd, &exceptfds);
 			}
 		}
 		
 		highest_fd = (highest_fd < fds[i].fd)  ? fds[i].fd : highest_fd;
 	}
 	
 	/*======================================
 	* select
 	*/
 	if((ret = select(highest_fd + 1, &readfds, &writefds, &exceptfds, (timeout >=0) ? &timetowait : 0)) >= 0){
 		for(i = 0; i<nfds; i++){
 			if(fds[i].fd != TNET_INVALID_FD){
 				fds[i].revents = 0;
 
 				if(FD_ISSET(fds[i].fd, &readfds)){
 					fds[i].revents |= TNET_POLLIN;
 				}
 				if(FD_ISSET(fds[i].fd, &writefds)){
 					fds[i].revents |= TNET_POLLOUT;
 				}
 				if(FD_ISSET(fds[i].fd, &exceptfds)){
 					fds[i].revents |= TNET_POLLPRI;
 				}
 			}
 		}
 	}
 
 	return ret;
 }
 
 #endif /* TNET_USE_POLL */