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freebsd/bin/sh/output.h
Jilles Tjoelker aeb5d06504 sh: Code size optimizations to buffered output.
This is mainly less use of the outc macro.

No functional change is intended, but code size is about 2K less on i386.
2010-11-20 14:14:52 +00:00

82 lines
3.1 KiB
C

/*-
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Kenneth Almquist.
*
* 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.
* 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.
*
* @(#)output.h 8.2 (Berkeley) 5/4/95
* $FreeBSD$
*/
#ifndef OUTPUT_INCL
#include <stdarg.h>
#include <stddef.h>
struct output {
char *nextc;
int nleft;
char *buf;
int bufsize;
short fd;
short flags;
};
extern struct output output; /* to fd 1 */
extern struct output errout; /* to fd 2 */
extern struct output memout;
extern struct output *out1; /* &memout if backquote, otherwise &output */
extern struct output *out2; /* &memout if backquote with 2>&1, otherwise
&errout */
void outcslow(int, struct output *);
void out1str(const char *);
void out1qstr(const char *);
void out2str(const char *);
void out2qstr(const char *);
void outstr(const char *, struct output *);
void outqstr(const char *, struct output *);
void outbin(const void *, size_t, struct output *);
void emptyoutbuf(struct output *);
void flushall(void);
void flushout(struct output *);
void freestdout(void);
void outfmt(struct output *, const char *, ...) __printflike(2, 3);
void out1fmt(const char *, ...) __printflike(1, 2);
void out2fmt_flush(const char *, ...) __printflike(1, 2);
void fmtstr(char *, int, const char *, ...) __printflike(3, 4);
void doformat(struct output *, const char *, va_list) __printflike(2, 0);
int xwrite(int, const char *, int);
#define outc(c, file) (--(file)->nleft < 0? (emptyoutbuf(file), *(file)->nextc++ = (c)) : (*(file)->nextc++ = (c)))
#define out1c(c) outc(c, out1);
#define out2c(c) outcslow(c, out2);
#define OUTPUT_INCL
#endif