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80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
4 years ago
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/*
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* stdio_ext.h
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*
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* Definitions for I/O internal operations, originally from Solaris.
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*/
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#ifndef _STDIO_EXT_H_
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#define _STDIO_EXT_H_
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#ifdef __rtems__
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#error "<stdio_ext.h> not supported"
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#endif
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#include <stdio.h>
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#define FSETLOCKING_QUERY 0
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#define FSETLOCKING_INTERNAL 1
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#define FSETLOCKING_BYCALLER 2
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_BEGIN_STD_C
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void _EXFUN(__fpurge,(FILE *));
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int _EXFUN(__fsetlocking,(FILE *, int));
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/* TODO:
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void _flushlbf (void);
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*/
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#ifdef __GNUC__
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_ELIDABLE_INLINE size_t
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__fbufsize (FILE *__fp) { return (size_t) __fp->_bf._size; }
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_ELIDABLE_INLINE int
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__freading (FILE *__fp) { return (__fp->_flags & __SRD) != 0; }
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_ELIDABLE_INLINE int
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__fwriting (FILE *__fp) { return (__fp->_flags & __SWR) != 0; }
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_ELIDABLE_INLINE int
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__freadable (FILE *__fp) { return (__fp->_flags & (__SRD | __SRW)) != 0; }
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_ELIDABLE_INLINE int
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__fwritable (FILE *__fp) { return (__fp->_flags & (__SWR | __SRW)) != 0; }
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_ELIDABLE_INLINE int
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__flbf (FILE *__fp) { return (__fp->_flags & __SLBF) != 0; }
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_ELIDABLE_INLINE size_t
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__fpending (FILE *__fp) { return __fp->_p - __fp->_bf._base; }
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#else
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size_t _EXFUN(__fbufsize,(FILE *));
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int _EXFUN(__freading,(FILE *));
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int _EXFUN(__fwriting,(FILE *));
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int _EXFUN(__freadable,(FILE *));
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int _EXFUN(__fwritable,(FILE *));
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int _EXFUN(__flbf,(FILE *));
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size_t _EXFUN(__fpending,(FILE *));
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#ifndef __cplusplus
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#define __fbufsize(__fp) ((size_t) (__fp)->_bf._size)
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#define __freading(__fp) (((__fp)->_flags & __SRD) != 0)
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#define __fwriting(__fp) (((__fp)->_flags & __SWR) != 0)
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#define __freadable(__fp) (((__fp)->_flags & (__SRD | __SRW)) != 0)
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#define __fwritable(__fp) (((__fp)->_flags & (__SWR | __SRW)) != 0)
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#define __flbf(__fp) (((__fp)->_flags & __SLBF) != 0)
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#define __fpending(__fp) ((size_t) ((__fp)->_p - (__fp)->_bf._base))
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#endif /* __cplusplus */
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#endif /* __GNUC__ */
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_END_STD_C
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#endif /* _STDIO_EXT_H_ */
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