* alist.c, arbiters.c, async.h, backtrace.h, boolean.c, chars.c,
[bpt/guile.git] / libguile / fports.h
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1/* classes: h_files */
2
3#ifndef FPORTSH
4#define FPORTSH
58ade102 5/* Copyright (C) 1995,1996,1997,1998,1999, 2000, 2001 Free Software Foundation, Inc.
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6 *
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)
10 * any later version.
11 *
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.
16 *
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
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19 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20 * Boston, MA 02111-1307 USA
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21 *
22 * As a special exception, the Free Software Foundation gives permission
23 * for additional uses of the text contained in its release of GUILE.
24 *
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.
30 *
31 * This exception does not however invalidate any other reasons why
32 * the executable file might be covered by the GNU General Public License.
33 *
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.
41 *
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.
82892bed 44 * If you do not wish that, delete this exception notice. */
d3a6bc94 45
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46\f
47
b4309c3c 48#include "libguile/__scm.h"
0f2d19dd 49
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50#include "libguile/ports.h"
51
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52\f
53
e4cd0c0a 54/* struct allocated for each buffered FPORT. */
92c2555f 55typedef struct scm_t_fport {
e4cd0c0a 56 int fdes; /* file descriptor. */
92c2555f 57} scm_t_fport;
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58
59#if (SCM_DEBUG_DEPRECATED == 0)
92c2555f 60# define scm_fport scm_t_fport
1be6b49c 61#endif
e4cd0c0a 62
92c2555f 63extern scm_t_bits scm_tc16_fport;
a98bddfd 64
92c2555f 65#define SCM_FSTREAM(x) ((scm_t_fport *) SCM_STREAM (x))
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66#define SCM_FPORT_FDES(x) (SCM_FSTREAM (x)->fdes)
67
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68#define SCM_FPORTP(x) (!SCM_IMP (x) && (SCM_TYP16 (x) == scm_tc16_fport))
69#define SCM_OPFPORTP(x) (SCM_FPORTP (x) && (SCM_CELL_WORD_0 (x) & SCM_OPN))
70#define SCM_OPINFPORTP(x) (SCM_OPFPORTP (x) && (SCM_CELL_WORD_0 (x) & SCM_RDNG))
71#define SCM_OPOUTFPORTP(x) (SCM_OPFPORTP (x) && (SCM_CELL_WORD_0 (x) & SCM_WRTNG))
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72
73/* test whether fdes supports random access. */
74#define SCM_FDES_RANDOM_P(fdes) ((lseek (fdes, 0, SEEK_CUR) == -1) ? 0 : 1)
75
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93016112 77extern SCM scm_setbuf0 (SCM port);
7a6f1ffa 78extern SCM scm_setvbuf (SCM port, SCM mode, SCM size);
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79extern void scm_evict_ports (int fd);
80extern SCM scm_open_file (SCM filename, SCM modes);
e4cd0c0a 81extern SCM scm_fdes_to_port (int fdes, char *mode, SCM name);
efa40607 82extern SCM scm_file_port_p (SCM obj);
7866a09b 83extern void scm_init_fports (void);
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84
85#endif /* FPORTSH */
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86
87/*
88 Local Variables:
89 c-file-style: "gnu"
90 End:
91*/