* Make SCM_DEBUG_CELL_ACCESSES=1 work with GUILE_DEBUG_FREELIST.
[bpt/guile.git] / libguile / _scm.h
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CommitLineData
1/* classes: h_files */
2
3#ifndef _SCMH
4#define _SCMH
5/* Copyright (C) 1995,1996, 2000, 2001 Free Software Foundation, Inc.
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
19 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20 * Boston, MA 02111-1307 USA
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.
44 * If you do not wish that, delete this exception notice. */
45\f
46
47#include "libguile/__scm.h"
48
49/* "What's the difference between _scm.h and __scm.h?"
50
51 _scm.h is not installed; it's only visible to the libguile sources
52 themselves.
53
54 __scm.h is installed, and is #included by <libguile.h>. If both
55 the client and libguile need some piece of information, and it
56 doesn't fit well into the header file for any particular module, it
57 should go in __scm.h. */
58
59
60
61/* Include headers for those files central to the implementation. The
62 rest should be explicitly #included in the C files themselves. */
63#include "libguile/error.h" /* Everyone signals errors. */
64#include "libguile/print.h" /* Everyone needs to print. */
65#include "libguile/pairs.h" /* Everyone conses. */
66#include "libguile/list.h" /* Everyone makes lists. */
67#include "libguile/gc.h" /* Everyone allocates. */
68#include "libguile/gsubr.h" /* Everyone defines global functions. */
69#include "libguile/procs.h" /* Same. */
70#include "libguile/numbers.h" /* Everyone deals with fixnums. */
71#include "libguile/symbols.h" /* For length, chars, values, miscellany. */
72#include "libguile/boolean.h" /* Everyone wonders about the truth. */
73#ifdef USE_THREADS
74#include "libguile/threads.h" /* The cooperative thread package does
75 switching at async ticks. */
76#endif
77#include "libguile/snarf.h" /* Everyone snarfs. */
78
79/* SCM_SYSCALL retries system calls that have been interrupted (EINTR).
80 However this can be avoided if the operating system can restart
81 system calls automatically. We assume this is the case if
82 sigaction is available and SA_RESTART is defined; they will be used
83 when installing signal handlers.
84 */
85
86#ifdef HAVE_RESTARTABLE_SYSCALLS
87#define SCM_SYSCALL(line) line
88#endif
89
90#ifndef SCM_SYSCALL
91#ifdef vms
92# ifndef __GNUC__
93# include <ssdef.h>
94# define SCM_SYSCALL(line) do{errno = 0;line;} \
95 while(EVMSERR==errno && (vaxc$errno>>3)==(SS$_CONTROLC>>3))
96# endif /* ndef __GNUC__ */
97#endif /* def vms */
98#endif /* ndef SCM_SYSCALL */
99
100#ifndef SCM_SYSCALL
101# ifdef EINTR
102# if (EINTR > 0)
103# define SCM_SYSCALL(line) do{errno = 0;line;}while(EINTR==errno)
104# endif /* (EINTR > 0) */
105# endif /* def EINTR */
106#endif /* ndef SCM_SYSCALL */
107
108#ifndef SCM_SYSCALL
109# define SCM_SYSCALL(line) line;
110#endif /* ndef SCM_SYSCALL */
111
112#ifndef MSDOS
113# ifdef ARM_ULIB
114 extern volatile int errno;
115# else
116 extern int errno;
117# endif /* def ARM_ULIB */
118#endif /* ndef MSDOS */
119
120\f
121
122#ifndef min
123#define min(A,B) ((A) <= (B) ? (A) : (B))
124#endif
125#ifndef max
126#define max(A,B) ((A) >= (B) ? (A) : (B))
127#endif
128
129#endif /* _SCMH */
130
131
132/*
133 Local Variables:
134 c-file-style: "gnu"
135 End:
136*/