6 /* Copyright (C) 1997 Free Software Foundation, Inc.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2, or (at your option)
13 * This program 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
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this software; see the file COPYING. If not, write to
20 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
22 * As a special exception, the Free Software Foundation gives permission
23 * for additional uses of the text contained in its release of GUILE.
25 * The exception is that, if you link the GUILE library with other files
26 * to produce an executable, this does not by itself cause the
27 * resulting executable to be covered by the GNU General Public License.
28 * Your use of that executable is in no way restricted on account of
29 * linking the GUILE library code into it.
31 * This exception does not however invalidate any other reasons why
32 * the executable file might be covered by the GNU General Public License.
34 * This exception applies only to the code released by the
35 * Free Software Foundation under the name GUILE. If you copy
36 * code from other Free Software Foundation releases into a copy of
37 * GUILE, as the General Public License permits, the exception does
38 * not apply to the code that you add in this way. To avoid misleading
39 * anyone as to the status of such modified files, you must delete
40 * this exception notice from them.
42 * If you write modifications of your own for GUILE, it is your choice
43 * whether to permit this exception to apply to your modifications.
44 * If you do not wish that, delete this exception notice.
47 #include "libguile/__scm.h"
49 /* Needed for FD_SET on some systems. */
50 #include <sys/types.h>
52 # ifdef TIME_WITH_SYS_TIME
53 # include <sys/time.h>
56 # ifdef HAVE_SYS_TIME_H
57 # include <sys/time.h>
65 #ifdef HAVE_SYS_SELECT_H
66 #include <sys/select.h>
71 #define SELECT_TYPE fd_set
72 #define SELECT_SET_SIZE FD_SETSIZE
76 /* Define the macros to access a single-int bitmap of descriptors. */
77 #define SELECT_SET_SIZE 32
78 #define SELECT_TYPE int
79 #define FD_SET(n, p) (*(p) |= (1 << (n)))
80 #define FD_CLR(n, p) (*(p) &= ~(1 << (n)))
81 #define FD_ISSET(n, p) (*(p) & (1 << (n)))
82 #define FD_ZERO(p) (*(p) = 0)
84 #endif /* no FD_SET */
86 extern int scm_I_am_dead
;
88 extern int scm_internal_select (int fds
,
92 struct timeval
*timeout
);
93 extern void scm_error_revive_threads (void);
94 extern void scm_init_iselect (void);