ReactOS  0.4.14-dev-358-gbef841c
stdio.h
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1 /* @(#)stdio.h 1.14 16/11/06 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 #ifndef _SCHILY_TYPES_H
95 #include <schily/types.h> /* Needed for ssize_t */
96 #endif
97 
98 /*
99  * This is how the 64 bit FILE * begins on Solaris.
100  */
101 struct SCHILY__FILE_TAG {
102  unsigned char *_ptr; /* next character from/to here in buffer */
103  unsigned char *_base; /* the buffer */
104  unsigned char *_end; /* the end of the buffer */
105  ssize_t _cnt; /* number of available characters in buffer */
106 };
107 
108 #define __getc_unlocked(p) (--(p)->_cnt < 0 \
109  ? __filbuf((FILE *)p) \
110  : (int)*(p)->_ptr++)
111 
112 #define getc_unlocked(p) __getc_unlocked((struct SCHILY__FILE_TAG *)p)
113 
114 #define __putc_unlocked(x, p) (--(p)->_cnt < 0 \
115  ? __flsbuf((x), (FILE *)(p)) \
116  : (int)(*(p)->_ptr++ = \
117  (unsigned char) (x)))
118 
119 #define putc_unlocked(x, p) __putc_unlocked(x, (struct SCHILY__FILE_TAG *)p)
120 
121 extern int __filbuf __PR((FILE *));
122 extern int __flsbuf __PR((int, FILE *));
123 
124 #else /* !defined(__SVR4) && defined(__sun) && defined(_LP64) */
125 #undef FAST_GETC_PUTC
126 #endif /* !defined(__SVR4) && defined(__sun) && defined(_LP64) */
127 #endif /* FAST_GETC_PUTC */
128 
129 #ifdef __cplusplus
130 }
131 #endif
132 
133 #else /* !NO_SCHILY_STDIO_H */
134 #undef _SCHILY_STDIO_H /* #undef here to pass "hdrchk" */
135 #endif /* NO_SCHILY_STDIO_H */
136 #endif /* _SCHILY_STDIO_H */
#define __PR(a)
Definition: prototyp.h:106
int _end[]
int ssize_t
Definition: rosdhcp.h:48