6 /* Copyright (C) 1997,1998,2000,2001, 2002, 2006 Free Software Foundation, Inc.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 #include "libguile/__scm.h"
27 /* Needed for FD_SET on some systems. */
28 #include <sys/types.h>
30 #if SCM_HAVE_SYS_SELECT_H
31 # include <sys/select.h>
34 #if SCM_HAVE_WINSOCK2_H
35 # include <winsock2.h>
40 #define SELECT_TYPE fd_set
41 #if defined(__INTERIX) && FD_SETSIZE == 4096
42 /* Interix defines FD_SETSIZE 4096 but select rejects that. */
43 #define SELECT_SET_SIZE 1024
45 #define SELECT_SET_SIZE FD_SETSIZE
50 /* Define the macros to access a single-int bitmap of descriptors. */
51 #define SELECT_SET_SIZE 32
52 #define SELECT_TYPE int
53 #define FD_SET(n, p) (*(p) |= (1 << (n)))
54 #define FD_CLR(n, p) (*(p) &= ~(1 << (n)))
55 #define FD_ISSET(n, p) (*(p) & (1 << (n)))
56 #define FD_ZERO(p) (*(p) = 0)
58 #endif /* no FD_SET */
60 SCM_API int scm_std_select (int fds,
64 struct timeval *timeout);
66 #endif /* SCM_ISELECT_H */