esp-idf/components/newlib/include/stdio_ext.h

80 wiersze
1.8 KiB
C

/*
* 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>
#define FSETLOCKING_QUERY 0
#define FSETLOCKING_INTERNAL 1
#define FSETLOCKING_BYCALLER 2
_BEGIN_STD_C
void _EXFUN(__fpurge,(FILE *));
int _EXFUN(__fsetlocking,(FILE *, int));
/* TODO:
void _flushlbf (void);
*/
#ifdef __GNUC__
_ELIDABLE_INLINE size_t
__fbufsize (FILE *__fp) { return (size_t) __fp->_bf._size; }
_ELIDABLE_INLINE int
__freading (FILE *__fp) { return (__fp->_flags & __SRD) != 0; }
_ELIDABLE_INLINE int
__fwriting (FILE *__fp) { return (__fp->_flags & __SWR) != 0; }
_ELIDABLE_INLINE int
__freadable (FILE *__fp) { return (__fp->_flags & (__SRD | __SRW)) != 0; }
_ELIDABLE_INLINE int
__fwritable (FILE *__fp) { return (__fp->_flags & (__SWR | __SRW)) != 0; }
_ELIDABLE_INLINE int
__flbf (FILE *__fp) { return (__fp->_flags & __SLBF) != 0; }
_ELIDABLE_INLINE size_t
__fpending (FILE *__fp) { return __fp->_p - __fp->_bf._base; }
#else
size_t _EXFUN(__fbufsize,(FILE *));
int _EXFUN(__freading,(FILE *));
int _EXFUN(__fwriting,(FILE *));
int _EXFUN(__freadable,(FILE *));
int _EXFUN(__fwritable,(FILE *));
int _EXFUN(__flbf,(FILE *));
size_t _EXFUN(__fpending,(FILE *));
#ifndef __cplusplus
#define __fbufsize(__fp) ((size_t) (__fp)->_bf._size)
#define __freading(__fp) (((__fp)->_flags & __SRD) != 0)
#define __fwriting(__fp) (((__fp)->_flags & __SWR) != 0)
#define __freadable(__fp) (((__fp)->_flags & (__SRD | __SRW)) != 0)
#define __fwritable(__fp) (((__fp)->_flags & (__SWR | __SRW)) != 0)
#define __flbf(__fp) (((__fp)->_flags & __SLBF) != 0)
#define __fpending(__fp) ((size_t) ((__fp)->_p - (__fp)->_bf._base))
#endif /* __cplusplus */
#endif /* __GNUC__ */
_END_STD_C
#endif /* _STDIO_EXT_H_ */