5 /* Copyright (C) 1995,1996,1997,1998,1999 Free Software Foundation, Inc.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2, or (at your option)
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this software; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20 * Boston, MA 02111-1307 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. */
46 /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
47 gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
50 #include "libguile/__scm.h"
52 #include "libguile/ports.h"
56 /* struct allocated for each buffered FPORT. */
58 int fdes
; /* file descriptor. */
61 #define SCM_FSTREAM(x) ((struct scm_fport *) SCM_STREAM (x))
62 #define SCM_FPORT_FDES(x) (SCM_FSTREAM (x)->fdes)
64 #define SCM_FPORTP(x) (SCM_NIMP(x) && (SCM_TYP16S(x)==scm_tc7_port))
65 #define SCM_OPFPORTP(x) (SCM_NIMP(x) && (((0xfeff | SCM_OPN) & SCM_CAR(x))==(scm_tc7_port | SCM_OPN)))
66 #define SCM_OPINFPORTP(x) (SCM_NIMP(x) && (((0xfeff | SCM_OPN | SCM_RDNG) & SCM_CAR(x))==(scm_tc7_port | SCM_OPN | SCM_RDNG)))
67 #define SCM_OPOUTFPORTP(x) (SCM_NIMP(x) && (((0xfeff | SCM_OPN | SCM_WRTNG) & SCM_CAR(x))==(scm_tc7_port | SCM_OPN | SCM_WRTNG)))
69 /* test whether fdes supports random access. */
70 #define SCM_FDES_RANDOM_P(fdes) ((lseek (fdes, 0, SEEK_CUR) == -1) ? 0 : 1)
73 extern SCM
scm_setbuf0 (SCM port
);
74 extern SCM
scm_setvbuf (SCM port
, SCM mode
, SCM size
);
75 extern void scm_setfileno (FILE *fs
, int fd
);
76 extern void scm_evict_ports (int fd
);
77 extern SCM
scm_open_file (SCM filename
, SCM modes
);
78 extern SCM
scm_fdes_to_port (int fdes
, char *mode
, SCM name
);
79 extern void scm_init_fports
SCM_P ((void));