/*  The oRTP library is an RTP (Realtime Transport Protocol - rfc3550) stack.  Copyright (C) 2001  Simon MORLAT simon.morlat@linphone.org  This library is free software; you can redistribute it and/or  modify it under the terms of the GNU Lesser General Public  License as published by the Free Software Foundation; either  version 2.1 of the License, or (at your option) any later version.  This library 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  Lesser General Public License for more details.  You should have received a copy of the GNU Lesser General Public  License along with this library; if not, write to the Free Software  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA*/#ifndef SESSIONSET_H#define SESSIONSET_H#include <ortp/rtpsession.h>#ifdef __cplusplusextern "C"{#endif#ifndef _WIN32/* UNIX */#include <sys/time.h>#include <sys/types.h>#include <unistd.h>#define ORTP_FD_SET(d, s)     FD_SET(d, s)#define ORTP_FD_CLR(d, s)     FD_CLR(d, s)#define ORTP_FD_ISSET(d, s)   FD_ISSET(d, s)#define ORTP_FD_ZERO(s)		  FD_ZERO(s)typedef fd_set ortp_fd_set;#else/* WIN32 */#define ORTP_FD_ZERO(s) \  do {									      \    unsigned int __i;							      \    ortp_fd_set *__arr = (s);						      \    for (__i = 0; __i < sizeof (ortp_fd_set) / sizeof (ortp__fd_mask); ++__i)	      \      ORTP__FDS_BITS (__arr)[__i] = 0;					      \  } while (0)#define ORTP_FD_SET(d, s)     (ORTP__FDS_BITS (s)[ORTP__FDELT(d)] |= ORTP__FDMASK(d))#define ORTP_FD_CLR(d, s)     (ORTP__FDS_BITS (s)[ORTP__FDELT(d)] &= ~ORTP__FDMASK(d))#define ORTP_FD_ISSET(d, s)   ((ORTP__FDS_BITS (s)[ORTP__FDELT(d)] & ORTP__FDMASK(d)) != 0)/* The fd_set member is required to be an array of longs.  */typedef long int ortp__fd_mask;/* Number of bits per word of `fd_set' (some code assumes this is 32).  */#define ORTP__FD_SETSIZE 1024/* It's easier to assume 8-bit bytes than to get CHAR_BIT.  */#define ORTP__NFDBITS	(8 * sizeof (ortp__fd_mask))#define	ORTP__FDELT(d)	((d) / ORTP__NFDBITS)#define	ORTP__FDMASK(d)	((ortp__fd_mask) 1 << ((d) % ORTP__NFDBITS))/* fd_set for select and pselect.  */typedef struct  {    ortp__fd_mask fds_bits[ORTP__FD_SETSIZE / ORTP__NFDBITS];# define ORTP__FDS_BITS(set) ((set)->fds_bits)  } ortp_fd_set;#endif /*end WIN32*/struct _SessionSet{	ortp_fd_set rtpset;};typedef struct _SessionSet SessionSet;SessionSet * session_set_new(void);#define session_set_init(ss)		ORTP_FD_ZERO(&(ss)->rtpset)#define session_set_set(ss,rtpsession)		ORTP_FD_SET((rtpsession)->mask_pos,&(ss)->rtpset)#define session_set_is_set(ss,rtpsession)	ORTP_FD_ISSET((rtpsession)->mask_pos,&(ss)->rtpset)#define session_set_clr(ss,rtpsession)		ORTP_FD_CLR((rtpsession)->mask_pos,&(ss)->rtpset)#define session_set_copy(dest,src)		memcpy(&(dest)->rtpset,&(src)->rtpset,sizeof(ortp_fd_set))void session_set_destroy(SessionSet *set);	int session_set_select(SessionSet *recvs, SessionSet *sends, SessionSet *errors);#ifdef __cplusplus}#endif	#endif