libguile/_scm.h

   1 /* classes: h_files */
   2
   3 #ifndef SCM__SCM_H
   4 #define SCM__SCM_H
   5
   6 /* Copyright (C) 1995,1996,2000,2001, 2002, 2006, 2008, 2009 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 License
  10  * as published by the Free Software Foundation; either version 3 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful, but
  14  * 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., 51 Franklin Street, Fifth Floor, Boston, MA
  21  * 02110-1301 USA
  22  */
  23
  24 \f
  25
  26 /**********************************************************************
  27  This file is Guile's central private header.
  28
  29  When included by other files, this file should preceed any include
  30  other than __scm.h.  See __scm.h for details regarding the purpose of
  31  and differences between _scm.h and __scm.h.
  32  **********************************************************************/
  33
  34 #if defined(__ia64) && !defined(__ia64__)
  35 # define __ia64__
  36 #endif
  37
  38 #if HAVE_CONFIG_H
  39 #  include <config.h>
  40 #endif
  41
  42 /* Undefine HAVE_STRUCT_TIMESPEC, because the libguile C code doesn't
  43    need it anymore, and because on MinGW:
  44
  45    - the definition of struct timespec is provided (if at all) by
  46      pthread.h
  47
  48    - pthread.h will _not_ define struct timespec if
  49      HAVE_STRUCT_TIMESPEC is 1, because then it thinks that it doesn't
  50      need to.
  51
  52    The libguile C code doesn't need HAVE_STRUCT_TIMESPEC anymore,
  53    because the value of HAVE_STRUCT_TIMESPEC has already been
  54    incorporated in how scm_t_timespec is defined (in scmconfig.h), and
  55    the rest of the libguile C code now just uses scm_t_timespec.
  56  */
  57 #ifdef HAVE_STRUCT_TIMESPEC
  58 #undef HAVE_STRUCT_TIMESPEC
  59 #endif
  60
  61 #include <errno.h>
  62 #include <verify.h>
  63 #include "libguile/__scm.h"
  64
  65 /* Include headers for those files central to the implementation.  The
  66    rest should be explicitly #included in the C files themselves.  */
  67 #include "libguile/error.h"     /* Everyone signals errors.  */
  68 #include "libguile/print.h"     /* Everyone needs to print.  */
  69 #include "libguile/pairs.h"     /* Everyone conses.  */
  70 #include "libguile/list.h"      /* Everyone makes lists.  */
  71 #include "libguile/gc.h"        /* Everyone allocates.  */
  72 #include "libguile/gsubr.h"     /* Everyone defines global functions.  */
  73 #include "libguile/procs.h"     /* Same.  */
  74 #include "libguile/numbers.h"   /* Everyone deals with fixnums.  */
  75 #include "libguile/symbols.h"   /* For length, chars, values, miscellany.  */
  76 #include "libguile/boolean.h"   /* Everyone wonders about the truth.  */
  77 #include "libguile/threads.h"   /* You are not alone. */
  78 #include "libguile/snarf.h"     /* Everyone snarfs. */
  79 #include "libguile/variable.h"
  80 #include "libguile/modules.h"
  81 #include "libguile/inline.h"
  82
  83 #ifndef SCM_SYSCALL
  84 #ifdef vms
  85 # ifndef __GNUC__
  86 #  include <ssdef.h>
  87 #  define SCM_SYSCALL(line) do{errno = 0;line;} \
  88         while(EVMSERR==errno && (vaxc$errno>>3)==(SS$_CONTROLC>>3))
  89 # endif /* ndef __GNUC__ */
  90 #endif /* def vms */
  91 #endif /* ndef SCM_SYSCALL  */
  92
  93 #ifndef SCM_SYSCALL
  94 # ifdef EINTR
  95 #  if (EINTR > 0)
  96 #   define SCM_SYSCALL(line) do{errno = 0;line;}while(EINTR==errno)
  97 #  endif /*  (EINTR > 0) */
  98 # endif /* def EINTR */
  99 #endif /* ndef SCM_SYSCALL */
 100
 101 #ifndef SCM_SYSCALL
 102 # define SCM_SYSCALL(line) line;
 103 #endif /* ndef SCM_SYSCALL */
 104
 105 \f
 106
 107 #ifndef min
 108 #define min(A, B) ((A) <= (B) ? (A) : (B))
 109 #endif
 110 #ifndef max
 111 #define max(A, B) ((A) >= (B) ? (A) : (B))
 112 #endif
 113
 114
 115
 116 #if GUILE_USE_64_CALLS && HAVE_STAT64
 117 #define CHOOSE_LARGEFILE(foo,foo64)     foo64
 118 #else
 119 #define CHOOSE_LARGEFILE(foo,foo64)     foo
 120 #endif
 121
 122 /* These names are a bit long, but they make it clear what they represent. */
 123 #if SCM_HAVE_STRUCT_DIRENT64 == 1
 124 # define dirent_or_dirent64             CHOOSE_LARGEFILE(dirent,dirent64)
 125 #else
 126 # define dirent_or_dirent64             dirent
 127 #endif
 128 #define fstat_or_fstat64                CHOOSE_LARGEFILE(fstat,fstat64)
 129 #define ftruncate_or_ftruncate64        CHOOSE_LARGEFILE(ftruncate,ftruncate64)
 130 #define lseek_or_lseek64                CHOOSE_LARGEFILE(lseek,lseek64)
 131 #define lstat_or_lstat64                CHOOSE_LARGEFILE(lstat,lstat64)
 132 #define off_t_or_off64_t                CHOOSE_LARGEFILE(off_t,off64_t)
 133 #define open_or_open64                  CHOOSE_LARGEFILE(open,open64)
 134 #define readdir_or_readdir64            CHOOSE_LARGEFILE(readdir,readdir64)
 135 #if SCM_HAVE_READDIR64_R == 1
 136 # define readdir_r_or_readdir64_r       CHOOSE_LARGEFILE(readdir_r,readdir64_r)
 137 #else
 138 # define readdir_r_or_readdir64_r       readdir_r
 139 #endif
 140 #define stat_or_stat64                  CHOOSE_LARGEFILE(stat,stat64)
 141 #define truncate_or_truncate64          CHOOSE_LARGEFILE(truncate,truncate64)
 142 #define scm_from_off_t_or_off64_t       CHOOSE_LARGEFILE(scm_from_off_t,scm_from_int64)
 143 #define scm_from_ino_t_or_ino64_t       CHOOSE_LARGEFILE(scm_from_ulong,scm_from_uint64)
 144 #define scm_from_blkcnt_t_or_blkcnt64_t CHOOSE_LARGEFILE(scm_from_ulong,scm_from_uint64)
 145 #define scm_to_off_t_or_off64_t         CHOOSE_LARGEFILE(scm_to_off_t,scm_to_int64)
 146
 147 #if SIZEOF_OFF_T == 4
 148 #  define scm_to_off_t    scm_to_int32
 149 #  define scm_from_off_t  scm_from_int32
 150 #elif SIZEOF_OFF_T == 8
 151 #  define scm_to_off_t    scm_to_int64
 152 #  define scm_from_off_t  scm_from_int64
 153 #else
 154 #  error sizeof(off_t) is not 4 or 8.
 155 #endif
 156 #define scm_to_off64_t    scm_to_int64
 157 #define scm_from_off64_t  scm_from_int64
 158
 159
 160 /* The endianness marker in objcode.  */
 161 #ifdef WORDS_BIGENDIAN
 162 # define SCM_OBJCODE_ENDIANNESS "BE"
 163 #else
 164 # define SCM_OBJCODE_ENDIANNESS "LE"
 165 #endif
 166
 167 #define _SCM_CPP_STRINGIFY(x)  # x
 168 #define SCM_CPP_STRINGIFY(x)   _SCM_CPP_STRINGIFY (x)
 169
 170 /* The word size marker in objcode.  */
 171 #define SCM_OBJCODE_WORD_SIZE  SCM_CPP_STRINGIFY (SIZEOF_VOID_P)
 172
 173 /* Major and minor versions must be single characters. */
 174 #define SCM_OBJCODE_MAJOR_VERSION 0
 175 #define SCM_OBJCODE_MINOR_VERSION D
 176 #define SCM_OBJCODE_MAJOR_VERSION_STRING        \
 177   SCM_CPP_STRINGIFY(SCM_OBJCODE_MAJOR_VERSION)
 178 #define SCM_OBJCODE_MINOR_VERSION_STRING        \
 179   SCM_CPP_STRINGIFY(SCM_OBJCODE_MINOR_VERSION)
 180 #define SCM_OBJCODE_VERSION_STRING                                      \
 181   SCM_OBJCODE_MAJOR_VERSION_STRING "." SCM_OBJCODE_MINOR_VERSION_STRING
 182 #define SCM_OBJCODE_MACHINE_VERSION_STRING                              \
 183   SCM_OBJCODE_VERSION_STRING "-" SCM_OBJCODE_ENDIANNESS "-" SCM_OBJCODE_WORD_SIZE
 184
 185 /* The objcode magic header.  */
 186 #define SCM_OBJCODE_COOKIE                              \
 187   "GOOF-" SCM_OBJCODE_MACHINE_VERSION_STRING "---"
 188
 189
 190 #endif  /* SCM__SCM_H */
 191
 192 /*
 193   Local Variables:
 194   c-file-style: "gnu"
 195   End:
 196 */