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137 lines
3.8 KiB
C
137 lines
3.8 KiB
C
/* @(#)stdio.h 1.14 16/11/06 Copyright 2009-2016 J. Schilling */
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/*
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* Abstraction from stdio.h
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*
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* Copyright (c) 2009-2016 J. Schilling
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*/
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/*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* See the file CDDL.Schily.txt in this distribution for details.
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* A copy of the CDDL is also available via the Internet at
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* http://www.opensource.org/licenses/cddl1.txt
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file CDDL.Schily.txt from this distribution.
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*/
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#ifndef _SCHILY_STDIO_H
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#define _SCHILY_STDIO_H
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#ifndef NO_SCHILY_STDIO_H /* We #undef _SCHILY_STDIO_H later because */
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/* of the ill designed "hdrchk" program */
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#ifndef _SCHILY_MCONFIG_H
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#include <schily/mconfig.h>
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#endif
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#ifdef INCL_MYSTDIO
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#ifndef _INCL_MYSTDIO_H
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#include <mystdio.h>
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#define _INCL_MYSTDIO_H
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#endif
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#else /* INCL_MYSTDIO */
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#ifndef _INCL_STDIO_H
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#include <stdio.h>
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#define _INCL_STDIO_H
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#endif
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#endif /* INCL_MYSTDIO */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef HAVE_LARGEFILES
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/*
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* If HAVE_LARGEFILES is defined, it is guaranteed that fseeko()/ftello()
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* both are available.
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*/
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#define fseek fseeko
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#define ftell ftello
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#else /* !HAVE_LARGEFILES */
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/*
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* If HAVE_LARGEFILES is not defined, we depend on specific tests for
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* fseeko()/ftello() which must have been done before the tests for
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* Large File support have been done.
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* Note that this only works if the tests used below are really done before
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* the Large File autoconf test is run. This is because autoconf does no
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* clean testing but instead cumulatively modifes the envivonment used for
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* testing.
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*/
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#ifdef HAVE_FSEEKO
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# define fseek fseeko
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#endif
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#ifdef HAVE_FTELLO
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# define ftell ftello
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#endif
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#endif
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#if !defined(HAVE_POPEN) && defined(HAVE__POPEN)
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#define popen(c, m) _popen((c), (m))
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#endif
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#if !defined(HAVE_PCLOSE) && defined(HAVE__PCLOSE)
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#define pclose(fp) _pclose(fp)
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#endif
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#ifdef FAST_GETC_PUTC
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/*
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* The following code partially allows libschily to access FILE * as fast as
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* from inside libc on Solaris.
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* This makes it possible to implement js_printf() from libschily aprox.
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* 33% faster than printf() from libc on Solaris. To do this, we
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* partially unhide the FILE structure in a 64 bit environment on Solaris
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* to allow to run putc_unlocked() as a marcro.
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*
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* If you believe you can do this on onther platforms, send a note.
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*/
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#if defined(__SVR4) && defined(__sun) && defined(_LP64)
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#ifndef _SCHILY_TYPES_H
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#include <schily/types.h> /* Needed for ssize_t */
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#endif
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/*
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* This is how the 64 bit FILE * begins on Solaris.
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*/
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struct SCHILY__FILE_TAG {
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unsigned char *_ptr; /* next character from/to here in buffer */
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unsigned char *_base; /* the buffer */
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unsigned char *_end; /* the end of the buffer */
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ssize_t _cnt; /* number of available characters in buffer */
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};
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#define __getc_unlocked(p) (--(p)->_cnt < 0 \
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? __filbuf((FILE *)p) \
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: (int)*(p)->_ptr++)
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#define getc_unlocked(p) __getc_unlocked((struct SCHILY__FILE_TAG *)p)
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#define __putc_unlocked(x, p) (--(p)->_cnt < 0 \
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? __flsbuf((x), (FILE *)(p)) \
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: (int)(*(p)->_ptr++ = \
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(unsigned char) (x)))
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#define putc_unlocked(x, p) __putc_unlocked(x, (struct SCHILY__FILE_TAG *)p)
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extern int __filbuf __PR((FILE *));
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extern int __flsbuf __PR((int, FILE *));
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#else /* !defined(__SVR4) && defined(__sun) && defined(_LP64) */
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#undef FAST_GETC_PUTC
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#endif /* !defined(__SVR4) && defined(__sun) && defined(_LP64) */
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#endif /* FAST_GETC_PUTC */
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#ifdef __cplusplus
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}
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#endif
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#else /* !NO_SCHILY_STDIO_H */
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#undef _SCHILY_STDIO_H /* #undef here to pass "hdrchk" */
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#endif /* NO_SCHILY_STDIO_H */
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#endif /* _SCHILY_STDIO_H */
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