ReactOS 0.4.15-dev-6675-gcbc63d8
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
45extern "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 */
101struct 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
121extern int __filbuf __PR((FILE *));
122extern 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 ssize_t
Definition: rosdhcp.h:48