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- /* classes: h_files */
-
- #ifndef ISELECTH
- #define ISELECTH
-
- /* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
- *
- * This program 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 2, or (at your option)
- * any later version.
- *
- * This program 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 this software; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice.
- */
-
- #include "libguile/__scm.h"
-
- /* Needed for FD_SET on some systems. */
- #include <sys/types.h>
-
- # ifdef TIME_WITH_SYS_TIME
- # include <sys/time.h>
- # include <time.h>
- # else
- # ifdef HAVE_SYS_TIME_H
- # include <sys/time.h>
- # else
- # ifdef HAVE_TIME_H
- # include <time.h>
- # endif
- # endif
- # endif
-
- #ifdef HAVE_SYS_SELECT_H
- #include <sys/select.h>
- #endif
-
- #ifdef FD_SET
-
- #define SELECT_TYPE fd_set
- #define SELECT_SET_SIZE FD_SETSIZE
-
- #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 */
-
- #ifdef GUILE_ISELECT
-
- extern int scm_I_am_dead;
-
- extern int scm_internal_select (int fds,
- SELECT_TYPE *rfds,
- SELECT_TYPE *wfds,
- SELECT_TYPE *efds,
- struct timeval *timeout);
- extern void scm_error_revive_threads (void);
- extern void scm_init_iselect (void);
-
- #else /* GUILE_ISELECT */
- #define scm_internal_select select
- #endif /* GUILE_ISELECT */
-
- #endif
-