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Diffstat (limited to 'mit-pthreads/stdio/local.h')
| -rw-r--r-- | mit-pthreads/stdio/local.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/mit-pthreads/stdio/local.h b/mit-pthreads/stdio/local.h new file mode 100644 index 00000000000..068754fad38 --- /dev/null +++ b/mit-pthreads/stdio/local.h @@ -0,0 +1,90 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * from: @(#)local.h 5.3 (Berkeley) 5/6/93 + * $Id$ + */ + +/* + * Information local to this implementation of stdio, + * in particular, macros and private variables. + */ + +#include <sys/types.h> +#include <stddef.h> + +extern FILE *__sfp __P_((void)); +extern int __sflush __P_((FILE *)); +extern int __srefill __P_((FILE *)); +extern int __swrite __P_((FILE *, const char *, int)); +extern int __sread __P_((FILE *, char *, int)); +extern fpos_t __sseek __P_((FILE *, off_t, int)); +extern int __sclose __P_((FILE *)); +extern void __sinit __P_((void)); +extern void _cleanup __P_((void)); +extern void __smakebuf __P_((FILE *)); +extern int __swhatbuf __P_((FILE *, size_t *, int *)); +extern int __swalk_sflush __P_(()); +extern int __swsetup __P_((FILE *)); +extern int __sflags __P_((const char *, int *)); + +extern void (*__cleanup) __P_((void)); + +/* + * Return true iff the given FILE cannot be written now. + */ +#define cantwrite(fp) \ + ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \ + __swsetup(fp)) + +/* + * Test whether the given stdio file has an active ungetc buffer; + * release such a buffer, without restoring ordinary unread data. + */ +#define HASUB(fp) ((fp)->_ub._base != NULL) +#define FREEUB(fp) { \ + if ((fp)->_ub._base != (fp)->_ubuf) \ + free((char *)(fp)->_ub._base); \ + (fp)->_ub._base = NULL; \ +} + +/* + * test for an fgetline() buffer. + */ +#define HASLB(fp) ((fp)->_lb._base != NULL) +#define FREELB(fp) { \ + free((char *)(fp)->_lb._base); \ + (fp)->_lb._base = NULL; \ +} |