reactos/sdk/tools/mkisofs/schilytools/include/schily/stdio.h

   1 /* @(#)stdio.h  1.12 16/09/11 Copyright 2009-2016 J. Schilling */
   2 /*
   3  *      Abstraction from stdio.h
   4  *
   5  *      Copyright (c) 2009-2016 J. Schilling
   6  */
   7 /*
   8  * The contents of this file are subject to the terms of the
   9  * Common Development and Distribution License, Version 1.0 only
  10  * (the "License").  You may not use this file except in compliance
  11  * with the License.
  12  *
  13  * See the file CDDL.Schily.txt in this distribution for details.
  14  * A copy of the CDDL is also available via the Internet at
  15  * http://www.opensource.org/licenses/cddl1.txt
  16  *
  17  * When distributing Covered Code, include this CDDL HEADER in each
  18  * file and include the License file CDDL.Schily.txt from this distribution.
  19  */
  20
  21 #ifndef _SCHILY_STDIO_H
  22 #define _SCHILY_STDIO_H
  23 #ifndef NO_SCHILY_STDIO_H       /* We #undef _SCHILY_STDIO_H later because */
  24                                 /* of the ill designed "hdrchk" program    */
  25
  26 #ifndef _SCHILY_MCONFIG_H
  27 #include <schily/mconfig.h>
  28 #endif
  29
  30 #ifdef  INCL_MYSTDIO
  31 #ifndef _INCL_MYSTDIO_H
  32 #include <mystdio.h>
  33 #define _INCL_MYSTDIO_H
  34 #endif
  35
  36 #else   /* INCL_MYSTDIO */
  37
  38 #ifndef _INCL_STDIO_H
  39 #include <stdio.h>
  40 #define _INCL_STDIO_H
  41 #endif
  42 #endif  /* INCL_MYSTDIO */
  43
  44 #ifdef __cplusplus
  45 extern "C" {
  46 #endif
  47
  48 #ifdef  HAVE_LARGEFILES
  49 /*
  50  * If HAVE_LARGEFILES is defined, it is guaranteed that fseeko()/ftello()
  51  * both are available.
  52  */
  53 #define fseek   fseeko
  54 #define ftell   ftello
  55 #else   /* !HAVE_LARGEFILES */
  56
  57 /*
  58  * If HAVE_LARGEFILES is not defined, we depend on specific tests for
  59  * fseeko()/ftello() which must have been done before the tests for
  60  * Large File support have been done.
  61  * Note that this only works if the tests used below are really done before
  62  * the Large File autoconf test is run. This is because autoconf does no
  63  * clean testing but instead cumulatively modifes the envivonment used for
  64  * testing.
  65  */
  66 #ifdef  HAVE_FSEEKO
  67 #       define  fseek   fseeko
  68 #endif
  69 #ifdef  HAVE_FTELLO
  70 #       define  ftell   ftello
  71 #endif
  72 #endif
  73
  74 #if     !defined(HAVE_POPEN) && defined(HAVE__POPEN)
  75 #define popen(c, m)     _popen((c), (m))
  76 #endif
  77
  78 #if     !defined(HAVE_PCLOSE) && defined(HAVE__PCLOSE)
  79 #define pclose(fp)      _pclose(fp)
  80 #endif
  81
  82 #ifdef  FAST_GETC_PUTC
  83 /*
  84  * The following code partially allows libschily to access FILE * as fast as
  85  * from inside libc on Solaris.
  86  * This makes it possible to implement js_printf() from libschily aprox.
  87  * 33% faster than printf() from libc on Solaris. To do this, we
  88  * partially unhide the FILE structure in a 64 bit environment on Solaris
  89  * to allow to run putc_unlocked() as a marcro.
  90  *
  91  * If you believe you can do this on onther platforms, send a note.
  92  */
  93 #if     defined(__SVR4) && defined(__sun) && defined(_LP64)
  94
  95 /*
  96  * This is how the 64 bit FILE * begins on Solaris.
  97  */
  98 struct SCHILY__FILE_TAG {
  99         unsigned char   *_ptr;  /* next character from/to here in buffer */
 100         unsigned char   *_base; /* the buffer */
 101         unsigned char   *_end;  /* the end of the buffer */
 102         ssize_t         _cnt;   /* number of available characters in buffer */
 103 };
 104
 105 #define __putc_unlocked(x, p)   (--(p)->_cnt < 0 \
 106                                         ? __flsbuf((x), (FILE *)(p)) \
 107                                         : (int)(*(p)->_ptr++ = \
 108                                         (unsigned char) (x)))
 109
 110 #define putc_unlocked(x, p)     __putc_unlocked(x, (struct SCHILY__FILE_TAG *)p)
 111
 112 extern int      __flsbuf __PR((int, FILE *));
 113
 114 #endif  /* defined(__SVR4) && defined(__sun) && defined(_LP64) */
 115 #endif  /* FAST_GETC_PUTC */
 116
 117 #ifdef __cplusplus
 118 }
 119 #endif
 120
 121 #else   /* !NO_SCHILY_STDIO_H */
 122 #undef  _SCHILY_STDIO_H                 /* #undef here to pass "hdrchk" */
 123 #endif  /* NO_SCHILY_STDIO_H */
 124 #endif  /* _SCHILY_STDIO_H */