* socket.c: use SCM_CHAR_BIT.
[bpt/guile.git] / libguile / fports.h
... / ...
CommitLineData
1/* classes: h_files */
2
3#ifndef SCM_FPORTS_H
4#define SCM_FPORTS_H
5
6/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc.
7 *
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.
12 *
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.
17 *
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23\f
24
25#include "libguile/__scm.h"
26
27#include "libguile/ports.h"
28
29\f
30
31/* struct allocated for each buffered FPORT. */
32typedef struct scm_t_fport {
33 int fdes; /* file descriptor. */
34} scm_t_fport;
35
36SCM_API scm_t_bits scm_tc16_fport;
37
38#define SCM_FSTREAM(x) ((scm_t_fport *) SCM_STREAM (x))
39#define SCM_FPORT_FDES(x) (SCM_FSTREAM (x)->fdes)
40
41#define SCM_FPORTP(x) (!SCM_IMP (x) && (SCM_TYP16 (x) == scm_tc16_fport))
42#define SCM_OPFPORTP(x) (SCM_FPORTP (x) && (SCM_CELL_WORD_0 (x) & SCM_OPN))
43#define SCM_OPINFPORTP(x) (SCM_OPFPORTP (x) && (SCM_CELL_WORD_0 (x) & SCM_RDNG))
44#define SCM_OPOUTFPORTP(x) (SCM_OPFPORTP (x) && (SCM_CELL_WORD_0 (x) & SCM_WRTNG))
45
46/* test whether fdes supports random access. */
47#define SCM_FDES_RANDOM_P(fdes) ((lseek (fdes, 0, SEEK_CUR) == -1) ? 0 : 1)
48
49\f
50SCM_API SCM scm_setbuf0 (SCM port);
51SCM_API SCM scm_setvbuf (SCM port, SCM mode, SCM size);
52SCM_API void scm_evict_ports (int fd);
53SCM_API SCM scm_open_file (SCM filename, SCM modes);
54SCM_API SCM scm_fdes_to_port (int fdes, char *mode, SCM name);
55SCM_API SCM scm_file_port_p (SCM obj);
56SCM_API void scm_init_fports (void);
57
58#endif /* SCM_FPORTS_H */
59
60/*
61 Local Variables:
62 c-file-style: "gnu"
63 End:
64*/