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* libc/include/stdio_ext.h: New header.

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* libc/stdio/fpurge.c [!__rtems__] (__fpurge): New function.
This commit is contained in:
Yaakov Selkowitz 2011-05-19 07:21:42 +00:00
parent 503ff5adc1
commit 831826db94
3 changed files with 50 additions and 0 deletions
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5
newlib/ChangeLog
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@ -1,3 +1,8 @@
2011-05-19 Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
* libc/include/stdio_ext.h: New header.
* libc/stdio/fpurge.c [!__rtems__] (__fpurge): New function.
2011-05-19 Matthew Gretton-Dann <matthew.gretton-dann@arm.com> 2011-05-19 Matthew Gretton-Dann <matthew.gretton-dann@arm.com>
* Makefile.am (install-data-local): Fix condition and rm call. * Makefile.am (install-data-local): Fix condition and rm call.

22
newlib/libc/include/stdio_ext.h Normal file
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@ -0,0 +1,22 @@
/*
* stdio_ext.h
*
* Definitions for I/O internal operations, originally from Solaris.
*/
#ifndef _STDIO_EXT_H_
#define _STDIO_EXT_H_
#ifdef __rtems__
#error "<stdio_ext.h> not supported"
#endif
#include <stdio.h>
_BEGIN_STD_C
void _EXFUN(__fpurge,(FILE *));
_END_STD_C
#endif /* _STDIO_EXT_H_ */

23
newlib/libc/stdio/fpurge.c
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@ -11,6 +11,8 @@ INDEX
fpurge fpurge
INDEX INDEX
_fpurge_r _fpurge_r
INDEX
__fpurge
ANSI_SYNOPSIS ANSI_SYNOPSIS
#include <stdio.h> #include <stdio.h>
@ -18,6 +20,11 @@ ANSI_SYNOPSIS
int _fpurge_r(struct _reent *<[reent]>, FILE *<[fp]>); int _fpurge_r(struct _reent *<[reent]>, FILE *<[fp]>);
#include <stdio.h>
#include <stdio_ext.h>
void __fpurge(FILE *<[fp]>);
DESCRIPTION DESCRIPTION
Use <<fpurge>> to clear all buffers of the given stream. For output Use <<fpurge>> to clear all buffers of the given stream. For output
streams, this discards data not yet written to disk. For input streams, streams, this discards data not yet written to disk. For input streams,
@ -26,6 +33,8 @@ but not yet read via <<getc>>. This is more severe than <<fflush>>,
and generally is only needed when manually altering the underlying file and generally is only needed when manually altering the underlying file
descriptor of a stream. descriptor of a stream.
<<__fpurge>> behaves exactly like <<fpurge>> but does not return a value.
The alternate function <<_fpurge_r>> is a reentrant version, where the The alternate function <<_fpurge_r>> is a reentrant version, where the
extra argument <[reent]> is a pointer to a reentrancy structure, and extra argument <[reent]> is a pointer to a reentrancy structure, and
<[fp]> must not be NULL. <[fp]> must not be NULL.
@ -42,6 +51,9 @@ No supporting OS subroutines are required.
#include <_ansi.h> #include <_ansi.h>
#include <stdio.h> #include <stdio.h>
#ifndef __rtems__
#include <stdio_ext.h>
#endif
#include <errno.h> #include <errno.h>
#include "local.h" #include "local.h"
@ -87,4 +99,15 @@ _DEFUN(fpurge, (fp),
return _fpurge_r (_REENT, fp); return _fpurge_r (_REENT, fp);
} }
#ifndef __rtems__
void
_DEFUN(__fpurge, (fp),
register FILE * fp)
{
_fpurge_r (_REENT, fp);
}
#endif
#endif /* _REENT_ONLY */ #endif /* _REENT_ONLY */