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/* classes: h_files */
#ifndef SCM__SCM_H
#define SCM__SCM_H
/* Copyright (C) 1995,1996,2000,2001, 2002, 2006, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
/**********************************************************************
This file is Guile's central private header.
When included by other files, this file should preceed any include
other than __scm.h. See __scm.h for details regarding the purpose of
and differences between _scm.h and __scm.h.
**********************************************************************/
#if defined(__ia64) && !defined(__ia64__)
# define __ia64__
#endif
#if HAVE_CONFIG_H
# include <config.h>
#endif
/* The size of `scm_t_bits'. */
#define SIZEOF_SCM_T_BITS SIZEOF_VOID_P
/* Undefine HAVE_STRUCT_TIMESPEC, because the libguile C code doesn't
need it anymore, and because on MinGW:
- the definition of struct timespec is provided (if at all) by
pthread.h
- pthread.h will _not_ define struct timespec if
HAVE_STRUCT_TIMESPEC is 1, because then it thinks that it doesn't
need to.
The libguile C code doesn't need HAVE_STRUCT_TIMESPEC anymore,
because the value of HAVE_STRUCT_TIMESPEC has already been
incorporated in how scm_t_timespec is defined (in scmconfig.h), and
the rest of the libguile C code now just uses scm_t_timespec.
*/
#ifdef HAVE_STRUCT_TIMESPEC
#undef HAVE_STRUCT_TIMESPEC
#endif
#include <errno.h>
#include <verify.h>
#include <alignof.h>
#include "libguile/__scm.h"
/* Include headers for those files central to the implementation. The
rest should be explicitly #included in the C files themselves. */
#include "libguile/error.h" /* Everyone signals errors. */
#include "libguile/print.h" /* Everyone needs to print. */
#include "libguile/pairs.h" /* Everyone conses. */
#include "libguile/list.h" /* Everyone makes lists. */
#include "libguile/gc.h" /* Everyone allocates. */
#include "libguile/gsubr.h" /* Everyone defines global functions. */
#include "libguile/procs.h" /* Same. */
#include "libguile/numbers.h" /* Everyone deals with fixnums. */
#include "libguile/symbols.h" /* For length, chars, values, miscellany. */
#include "libguile/boolean.h" /* Everyone wonders about the truth. */
#include "libguile/threads.h" /* You are not alone. */
#include "libguile/snarf.h" /* Everyone snarfs. */
#include "libguile/foreign.h" /* Snarfing needs the foreign data structures. */
#include "libguile/programs.h" /* ... and program.h. */
#include "libguile/variable.h"
#include "libguile/modules.h"
#include "libguile/inline.h"
#include "libguile/strings.h"
/* ASYNC_TICK after finding EINTR in order to handle pending signals, if
any. See comment in scm_syserror. */
#ifndef SCM_SYSCALL
#ifdef vms
# ifndef __GNUC__
# include <ssdef.h>
# define SCM_SYSCALL(line) \
do \
{ \
errno = 0; \
line; \
if (EVMSERR==errno && (vaxc$errno>>3)==(SS$_CONTROLC>>3)) \
{ \
SCM_ASYNC_TICK; \
continue; \
} \
} \
while(0)
# endif /* ndef __GNUC__ */
#endif /* def vms */
#endif /* ndef SCM_SYSCALL */
#ifndef SCM_SYSCALL
# ifdef EINTR
# if (EINTR > 0)
# define SCM_SYSCALL(line) \
do \
{ \
errno = 0; \
line; \
if (errno == EINTR) \
{ \
SCM_ASYNC_TICK; \
continue; \
} \
} \
while(0)
# endif /* (EINTR > 0) */
# endif /* def EINTR */
#endif /* ndef SCM_SYSCALL */
#ifndef SCM_SYSCALL
# define SCM_SYSCALL(line) line;
#endif /* ndef SCM_SYSCALL */
#ifndef min
#define min(A, B) ((A) <= (B) ? (A) : (B))
#endif
#ifndef max
#define max(A, B) ((A) >= (B) ? (A) : (B))
#endif
/* Return the first integer greater than or equal to LEN such that
LEN % ALIGN == 0. Return LEN if ALIGN is zero. */
#define ROUND_UP(len, align) \
((align) ? (((len) - 1UL) | ((align) - 1UL)) + 1UL : (len))
#if defined GUILE_USE_64_CALLS && GUILE_USE_64_CALLS && defined(HAVE_STAT64)
#define CHOOSE_LARGEFILE(foo,foo64) foo64
#else
#define CHOOSE_LARGEFILE(foo,foo64) foo
#endif
/* These names are a bit long, but they make it clear what they represent. */
#if SCM_HAVE_STRUCT_DIRENT64 == 1
# define dirent_or_dirent64 CHOOSE_LARGEFILE(dirent,dirent64)
#else
# define dirent_or_dirent64 dirent
#endif
#define fstat_or_fstat64 CHOOSE_LARGEFILE(fstat,fstat64)
#define ftruncate_or_ftruncate64 CHOOSE_LARGEFILE(ftruncate,ftruncate64)
#define lseek_or_lseek64 CHOOSE_LARGEFILE(lseek,lseek64)
#define lstat_or_lstat64 CHOOSE_LARGEFILE(lstat,lstat64)
#define off_t_or_off64_t CHOOSE_LARGEFILE(off_t,off64_t)
#define open_or_open64 CHOOSE_LARGEFILE(open,open64)
#define readdir_or_readdir64 CHOOSE_LARGEFILE(readdir,readdir64)
#if SCM_HAVE_READDIR64_R == 1
# define readdir_r_or_readdir64_r CHOOSE_LARGEFILE(readdir_r,readdir64_r)
#else
# define readdir_r_or_readdir64_r readdir_r
#endif
#define stat_or_stat64 CHOOSE_LARGEFILE(stat,stat64)
#define truncate_or_truncate64 CHOOSE_LARGEFILE(truncate,truncate64)
#define scm_from_off_t_or_off64_t CHOOSE_LARGEFILE(scm_from_off_t,scm_from_int64)
#define scm_from_ino_t_or_ino64_t CHOOSE_LARGEFILE(scm_from_ulong,scm_from_uint64)
#define scm_from_blkcnt_t_or_blkcnt64_t CHOOSE_LARGEFILE(scm_from_ulong,scm_from_uint64)
#define scm_to_off_t_or_off64_t CHOOSE_LARGEFILE(scm_to_off_t,scm_to_int64)
#if SIZEOF_OFF_T == 4
# define scm_to_off_t scm_to_int32
# define scm_from_off_t scm_from_int32
#elif SIZEOF_OFF_T == 8
# define scm_to_off_t scm_to_int64
# define scm_from_off_t scm_from_int64
#else
# error sizeof(off_t) is not 4 or 8.
#endif
#define scm_to_off64_t scm_to_int64
#define scm_from_off64_t scm_from_int64
#if defined (vms)
/* VMS: Implement SCM_I_SETJMP in terms of setjump. */
extern int setjump(scm_i_jmp_buf env);
extern int longjump(scm_i_jmp_buf env, int ret);
#define SCM_I_SETJMP setjump
#define SCM_I_LONGJMP longjump
#elif defined (_CRAY1)
/* Cray: Implement SCM_I_SETJMP in terms of setjump. */
extern int setjump(scm_i_jmp_buf env);
extern int longjump(scm_i_jmp_buf env, int ret);
#define SCM_I_SETJMP setjump
#define SCM_I_LONGJMP longjump
#elif defined (__ia64__)
/* IA64: Implement SCM_I_SETJMP in terms of getcontext. */
# define SCM_I_SETJMP(JB) \
( (JB).fresh = 1, \
getcontext (&((JB).ctx)), \
((JB).fresh ? ((JB).fresh = 0, 0) : 1) )
# define SCM_I_LONGJMP(JB,VAL) scm_ia64_longjmp (&(JB), VAL)
void scm_ia64_longjmp (scm_i_jmp_buf *, int);
#else
/* All other systems just use setjmp and longjmp. */
#define SCM_I_SETJMP setjmp
#define SCM_I_LONGJMP longjmp
#endif
#define SCM_ASYNC_TICK \
do \
{ \
if (SCM_UNLIKELY (SCM_I_CURRENT_THREAD->pending_asyncs)) \
scm_async_tick (); \
} \
while (0)
#define SCM_ASYNC_TICK_WITH_CODE(thr, stmt) \
do \
{ \
if (SCM_UNLIKELY (thr->pending_asyncs)) \
{ \
stmt; \
scm_async_tick (); \
} \
} \
while (0)
/* The endianness marker in objcode. */
#ifdef WORDS_BIGENDIAN
# define SCM_OBJCODE_ENDIANNESS "BE"
#else
# define SCM_OBJCODE_ENDIANNESS "LE"
#endif
#define _SCM_CPP_STRINGIFY(x) # x
#define SCM_CPP_STRINGIFY(x) _SCM_CPP_STRINGIFY (x)
/* The word size marker in objcode. */
#define SCM_OBJCODE_WORD_SIZE SCM_CPP_STRINGIFY (SIZEOF_VOID_P)
/* Major and minor versions must be single characters. */
#define SCM_OBJCODE_MAJOR_VERSION 3
#define SCM_OBJCODE_MINOR_VERSION 0
#define SCM_OBJCODE_MAJOR_VERSION_STRING \
SCM_CPP_STRINGIFY(SCM_OBJCODE_MAJOR_VERSION)
#define SCM_OBJCODE_MINOR_VERSION_STRING \
SCM_CPP_STRINGIFY(SCM_OBJCODE_MINOR_VERSION)
#define SCM_OBJCODE_VERSION_STRING \
SCM_OBJCODE_MAJOR_VERSION_STRING "." SCM_OBJCODE_MINOR_VERSION_STRING
#define SCM_OBJCODE_MACHINE_VERSION_STRING \
SCM_OBJCODE_ENDIANNESS "-" SCM_OBJCODE_WORD_SIZE "-" SCM_OBJCODE_VERSION_STRING
/* The objcode magic header. */
#define SCM_OBJCODE_COOKIE \
"GOOF----" SCM_OBJCODE_MACHINE_VERSION_STRING
#define SCM_OBJCODE_ENDIANNESS_OFFSET 8
#define SCM_OBJCODE_WORD_SIZE_OFFSET 11
#endif /* SCM__SCM_H */
/*
Local Variables:
c-file-style: "gnu"
End:
*/
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