/* fflush.c -- allow flushing input streams
- Copyright (C) 2007-2010 Free Software Foundation, Inc.
+ Copyright (C) 2007-2013 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include "stdio-impl.h"
+#include "unused-parameter.h"
+
#undef fflush
#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
/* Clear the stream's ungetc buffer, preserving the value of ftello (fp). */
-static inline void
+static void
clear_ungetc_buffer_preserving_position (FILE *fp)
{
if (fp->_flags & _IO_IN_BACKUP)
#else
/* Clear the stream's ungetc buffer. May modify the value of ftello (fp). */
-static inline void
+static void
clear_ungetc_buffer (FILE *fp)
{
-# if defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
+# if defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
if (HASUB (fp))
{
fp_->_p += fp_->_r;
fp->_ungetc_count = 0;
fp->_rcount = - fp->_rcount;
}
-# elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw */
+# elif defined _IOERR /* Minix, AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw, NonStop Kernel */
/* Nothing to do. */
# else /* other implementations */
fseeko (fp, 0, SEEK_CUR);
#endif
-#if (defined __sferror || defined __DragonFly__) && defined __SNPT /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
+#if ! (defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */)
+
+# if (defined __sferror || defined __DragonFly__) && defined __SNPT /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
-static inline int
+static int
disable_seek_optimization (FILE *fp)
{
int saved_flags = fp_->_flags & (__SOPT | __SNPT);
return saved_flags;
}
-static inline void
+static void
restore_seek_optimization (FILE *fp, int saved_flags)
{
fp_->_flags = (fp_->_flags & ~(__SOPT | __SNPT)) | saved_flags;
}
-#endif
+# else
-static inline void
-update_fpos_cache (FILE *fp, off_t pos)
+static void
+update_fpos_cache (FILE *fp _GL_UNUSED_PARAMETER,
+ off_t pos _GL_UNUSED_PARAMETER)
{
-#if defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
-# if defined __CYGWIN__
+# if defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
+# if defined __CYGWIN__
/* fp_->_offset is typed as an integer. */
fp_->_offset = pos;
-# else
+# else
/* fp_->_offset is an fpos_t. */
/* Use a union, since on NetBSD, the compilation flags determine
whether fpos_t is typedef'd to off_t or a struct containing a
} u;
u.o = pos;
fp_->_offset = u.f;
-# endif
+# endif
fp_->_flags |= __SOFF;
-#endif
+# endif
}
+# endif
+#endif
/* Flush all pending data on STREAM according to POSIX rules. Both
output and seekable input streams are supported. */
return result;
}
-# if (defined __sferror || defined __DragonFly__) && defined __SNPT /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
+# if (defined __sferror || defined __DragonFly__) && defined __SNPT /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
{
/* Disable seek optimization for the next fseeko call. This tells the