| /* Functions to access FILE structure internals. |
| Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* This header contains the same definitions as the header of the same name |
| on Sun's Solaris OS. */ |
| |
| #ifndef _STDIO_EXT_H |
| #define _STDIO_EXT_H 1 |
| |
| #include <stdio.h> |
| |
| enum |
| { |
| /* Query current state of the locking status. */ |
| FSETLOCKING_QUERY = 0, |
| #define FSETLOCKING_QUERY FSETLOCKING_QUERY |
| /* The library protects all uses of the stream functions, except for |
| uses of the *_unlocked functions, by calls equivalent to flockfile(). */ |
| FSETLOCKING_INTERNAL, |
| #define FSETLOCKING_INTERNAL FSETLOCKING_INTERNAL |
| /* The user will take care of locking. */ |
| FSETLOCKING_BYCALLER |
| #define FSETLOCKING_BYCALLER FSETLOCKING_BYCALLER |
| }; |
| |
| |
| __BEGIN_DECLS |
| |
| /* Return the size of the buffer of FP in bytes currently in use by |
| the given stream. */ |
| extern size_t __fbufsize (FILE *__fp) __THROW; |
| |
| |
| /* Return non-zero value iff the stream FP is opened readonly, or if the |
| last operation on the stream was a read operation. */ |
| extern int __freading (FILE *__fp) __THROW; |
| |
| /* Return non-zero value iff the stream FP is opened write-only or |
| append-only, or if the last operation on the stream was a write |
| operation. */ |
| extern int __fwriting (FILE *__fp) __THROW; |
| |
| |
| /* Return non-zero value iff stream FP is not opened write-only or |
| append-only. */ |
| extern int __freadable (FILE *__fp) __THROW; |
| |
| /* Return non-zero value iff stream FP is not opened read-only. */ |
| extern int __fwritable (FILE *__fp) __THROW; |
| |
| |
| /* Return non-zero value iff the stream FP is line-buffered. */ |
| extern int __flbf (FILE *__fp) __THROW; |
| |
| |
| /* Discard all pending buffered I/O on the stream FP. */ |
| extern void __fpurge (FILE *__fp) __THROW; |
| |
| /* Return amount of output in bytes pending on a stream FP. */ |
| extern size_t __fpending (FILE *__fp) __THROW; |
| |
| /* Flush all line-buffered files. */ |
| extern void _flushlbf (void); |
| |
| |
| /* Set locking status of stream FP to TYPE. */ |
| extern int __fsetlocking (FILE *__fp, int __type) __THROW; |
| |
| __END_DECLS |
| |
| #endif /* stdio_ext.h */ |