diff options
Diffstat (limited to 'stdio-common')
| -rw-r--r-- | stdio-common/Makefile | 2 | ||||
| -rw-r--r-- | stdio-common/stdio_ext.h | 87 |
2 files changed, 88 insertions, 1 deletions
diff --git a/stdio-common/Makefile b/stdio-common/Makefile index e7f5dd23f2..f2a26b367e 100644 --- a/stdio-common/Makefile +++ b/stdio-common/Makefile @@ -21,7 +21,7 @@ # subdir := stdio-common -headers := printf.h +headers := printf.h stdio_ext.h routines := \ ctermid cuserid \ diff --git a/stdio-common/stdio_ext.h b/stdio-common/stdio_ext.h new file mode 100644 index 0000000000..de04803fe9 --- /dev/null +++ b/stdio-common/stdio_ext.h @@ -0,0 +1,87 @@ +/* Functions to access FILE structure internals. + Copyright (C) 2000 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* 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); + + +/* 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); + +/* 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); + + +/* Return non-zero value iff stream FP is not opened write-only or + append-only. */ +extern int __freadable (FILE *__fp); + +/* Return non-zero value iff stream FP is not opened read-only. */ +extern int __fwritable (FILE *__fp); + + +/* Return non-zero value iff the stream FP is line-buffered. */ +extern int __flbf (FILE *__fp); + + +/* Discard all pending buffered I/O on the stream FP. */ +extern void __fpurge (FILE *__fp); + +/* Return amount of output in bytes pending on a stream FP. */ +extern size_t __fpending (FILE *__fp); + +/* Flush all line-buffered files. */ +extern void _flushlbf (void); + + +/* Set locking statis of stream FP to TYPE. */ +extern int __fsetlocking (FILE *__fp, int __type); + +__END_DECLS + +#endif /* stdio_ext.h */ |