osdep.h

   1 /////////////////////////////////////////////////////////////////////////
   2 // $Id: osdep.h,v 1.28 2008/02/05 22:57:40 sshwarts Exp $
   3 /////////////////////////////////////////////////////////////////////////
   4 //
   5 //  Copyright (C) 2001  MandrakeSoft S.A.
   6 //
   7 //    MandrakeSoft S.A.
   8 //    43, rue d'Aboukir
   9 //    75002 Paris - France
  10 //    http://www.linux-mandrake.com/
  11 //    http://www.mandrakesoft.com/
  12 //
  13 //  This library is free software; you can redistribute it and/or
  14 //  modify it under the terms of the GNU Lesser General Public
  15 //  License as published by the Free Software Foundation; either
  16 //  version 2 of the License, or (at your option) any later version.
  17 //
  18 //  This library is distributed in the hope that it will be useful,
  19 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21 //  Lesser General Public License for more details.
  22 //
  23 //  You should have received a copy of the GNU Lesser General Public
  24 //  License along with this library; if not, write to the Free Software
  25 //  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  26
  27 //
  28 // osdep.h
  29 //
  30 // requires Bit32u/Bit64u from config.h, size_t from stdio.h
  31 //
  32 // Operating system dependent includes and defines for Bochs.  These
  33 // declarations can be included by C or C++., but they require definition of
  34 // size_t beforehand.  This makes it difficult to place them into either
  35 // config.h or bochs.h.  If in config.h, size_t is not always available yet.
  36 // If in bochs.h, they can't be included by C programs so they lose.
  37 //
  38
  39 #ifndef BX_OSDEP_H
  40 #define BX_OSDEP_H
  41
  42 #ifdef __cplusplus
  43 extern "C" {
  44 #endif   /* __cplusplus */
  45
  46 //////////////////////////////////////////////////////////////////////
  47 // Hacks for win32, but exclude MINGW32 because it doesn't need them.
  48 //////////////////////////////////////////////////////////////////////
  49 #ifdef WIN32
  50
  51 // Definitions that are needed for all WIN32 compilers.
  52 #  define ssize_t long
  53
  54 #ifndef __MINGW32__
  55
  56 // Definitions that are needed for WIN32 compilers EXCEPT FOR
  57 // cygwin compiling with -mno-cygwin.  e.g. VC++.
  58
  59 #if !defined(_MSC_VER)          // gcc without -mno-cygwin
  60 #define FMT_LL "%ll"
  61 #define FMT_TICK "%011llu"
  62 #define FMT_ADDRX64 "%016llx"
  63 #else
  64 #define FMT_LL "%I64"
  65 #define FMT_TICK "%011I64u"
  66 #define FMT_ADDRX64 "%016I64x"
  67 #endif
  68
  69 // always return regular file.
  70 #  define S_ISREG(m)      (((m) & S_IFMT) == S_IFREG)
  71 #  define S_ISCHR(m)      (((m) & S_IFMT) == S_IFCHR)
  72
  73 // win32 has snprintf though with different name.
  74 #define snprintf _snprintf
  75 #define vsnprintf _vsnprintf
  76 #undef BX_HAVE_SNPRINTF
  77 #undef BX_HAVE_VSNPRINTF
  78 #define BX_HAVE_SNPRINTF 1
  79 #define BX_HAVE_VSNPRINTF 1
  80
  81 #if defined(_MSC_VER)
  82 #define off_t __int64
  83 #define lseek _lseeki64
  84 #define fstat _fstati64
  85 #define stat  _stati64
  86 #endif
  87
  88 #else   /* __MINGW32__ defined */
  89 // Definitions for cygwin compiled with -mno-cygwin
  90 #define FMT_LL "%I64"
  91 #define FMT_TICK "%011I64u"
  92 #define FMT_ADDRX64 "%016I64x"
  93
  94 #define off_t __int64
  95 #define lseek _lseeki64
  96 #endif  /* __MINGW32__ defined */
  97
  98 #else    /* not WIN32 definitions */
  99 #define FMT_LL "%ll"
 100 #define FMT_TICK "%011llu"
 101 #define FMT_ADDRX64 "%016llx"
 102 #endif   /* not WIN32 definitions */
 103
 104 #define FMT_ADDRX32 "%08x"
 105
 106 // Missing defines for open
 107 #ifndef S_IRUSR
 108 #define S_IRUSR 0400
 109 #define S_IWUSR 0200
 110 #endif
 111 #ifndef S_IRGRP
 112 #define S_IRGRP 0040
 113 #define S_IWGRP 0020
 114 #endif
 115 #ifndef S_IROTH
 116 #define S_IROTH 0004
 117 #define S_IWOTH 0002
 118 #endif
 119
 120 //////////////////////////////////////////////////////////////////////
 121 // Missing library functions.
 122 // These should work on any platform that needs them.
 123 //
 124 // A missing library function is renamed to a bx_* function, so that when
 125 // debugging and linking there's no confusion over which version is used.
 126 // Because of renaming, the bx_* replacement functions can be tested on
 127 // machines which have the real library function without duplicate symbols.
 128 //
 129 // If you're considering implementing a missing library function, note
 130 // that it might be cleaner to conditionally disable the function call!
 131 //////////////////////////////////////////////////////////////////////
 132
 133 #if !BX_HAVE_SNPRINTF
 134   #define snprintf bx_snprintf
 135   extern int bx_snprintf (char *s, size_t maxlen, const char *format, ...);
 136 #endif
 137
 138 #if !BX_HAVE_VSNPRINTF
 139   #define vsnprintf bx_vsnprintf
 140   extern int bx_vsnprintf (char *s, size_t maxlen, const char *format, va_list arg);
 141 #endif
 142
 143 #if BX_HAVE_STRTOULL
 144   // great, just use the usual function
 145 #elif BX_HAVE_STRTOUQ
 146   // they have strtouq and not strtoull
 147   #define strtoull strtouq
 148 #else
 149   #define strtoull bx_strtoull
 150   extern Bit64u bx_strtoull (const char *nptr, char **endptr, int baseignore);
 151 #endif
 152
 153 #if !BX_HAVE_STRDUP
 154 #define strdup bx_strdup
 155   extern char *bx_strdup(const char *str);
 156 #endif
 157
 158 #if !BX_HAVE_STRREV
 159 #define strrev bx_strrev
 160   extern char *bx_strrev(char *str);
 161 #endif
 162
 163 #if !BX_HAVE_SOCKLEN_T
 164 // needed on MacOS X 10.1
 165 typedef int socklen_t;
 166 #endif
 167
 168 #if !BX_HAVE_MKSTEMP
 169 #define mkstemp bx_mkstemp
 170   extern int bx_mkstemp(char *tpl);
 171 #endif
 172
 173 //////////////////////////////////////////////////////////////////////
 174 // Missing library functions, implemented for MacOS only
 175 //////////////////////////////////////////////////////////////////////
 176
 177 #if BX_WITH_MACOS
 178 // fd_read and fd_write are called by floppy.cc to access the Mac
 179 // floppy drive directly, since the MacOS doesn't have "special"
 180 // pathnames which map directly to IO devices
 181
 182 int fd_read(char *buffer, Bit32u offset, Bit32u bytes);
 183 int fd_write(char *buffer, Bit32u offset, Bit32u bytes);
 184 int fd_stat(struct stat *buf);
 185 FILE *  fdopen(int fd, const char *type);
 186
 187 typedef long ssize_t ;
 188 #endif
 189
 190 //////////////////////////////////////////////////////////////////////
 191 // New functions to replace library functions
 192 //   with OS-independent versions
 193 //////////////////////////////////////////////////////////////////////
 194
 195 #if BX_HAVE_REALTIME_USEC
 196 // 64-bit time in useconds.
 197 extern Bit64u bx_get_realtime64_usec (void);
 198 #endif
 199
 200 #ifdef WIN32
 201 #undef BX_HAVE_MSLEEP
 202 #define BX_HAVE_MSLEEP 1
 203 #ifndef __MINGW32__
 204 #define msleep(msec)    _sleep(msec)
 205 #else
 206 #define msleep(msec)    Sleep(msec)
 207 #endif
 208 #endif
 209
 210 #ifdef __cplusplus
 211 }
 212 #endif   /* __cplusplus */
 213
 214 #endif /* ifdef BX_OSDEP_H */