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/* classes: h_files */
#ifndef SCM_ISELECT_H
#define SCM_ISELECT_H
/* Copyright (C) 1997,1998,2000,2001, 2002, 2006 Free Software Foundation, Inc.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libguile/__scm.h"
/* Needed for FD_SET on some systems. */
#include <sys/types.h>
#if SCM_HAVE_SYS_SELECT_H
# include <sys/select.h>
#endif
#if SCM_HAVE_WINSOCK2_H
# include <winsock2.h>
#endif
#ifdef FD_SET
#define SELECT_TYPE fd_set
#if defined(__INTERIX) && FD_SETSIZE == 4096
/* Interix defines FD_SETSIZE 4096 but select rejects that. */
#define SELECT_SET_SIZE 1024
#else
#define SELECT_SET_SIZE FD_SETSIZE
#endif
#else /* no FD_SET */
/* Define the macros to access a single-int bitmap of descriptors. */
#define SELECT_SET_SIZE 32
#define SELECT_TYPE int
#define FD_SET(n, p) (*(p) |= (1 << (n)))
#define FD_CLR(n, p) (*(p) &= ~(1 << (n)))
#define FD_ISSET(n, p) (*(p) & (1 << (n)))
#define FD_ZERO(p) (*(p) = 0)
#endif /* no FD_SET */
SCM_API int scm_std_select (int fds,
SELECT_TYPE *rfds,
SELECT_TYPE *wfds,
SELECT_TYPE *efds,
struct timeval *timeout);
#endif /* SCM_ISELECT_H */
/*
Local Variables:
c-file-style: "gnu"
End:
*/
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