ref: 5572ebf9ed54fa7d53480e8119bf10205dc5298b
dir: /libc/fmtfd.c/
/*
* The authors of this software are Rob Pike and Ken Thompson.
* Copyright (c) 2002 by Lucent Technologies.
* Permission to use, copy, modify, and distribute this software for any
* purpose without fee is hereby granted, provided that this entire notice
* is included in all copies of any software which is or includes a copy
* or modification of this software and in all copies of the supporting
* documentation for such software.
* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE
* ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
* OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
*/
#include <inttypes.h>
#include <u.h>
#include <libc.h>
#include "fmtdef.h"
/*
* public routine for final flush of a formatting buffer
* to a file descriptor; returns total char count.
*/
int
fmtfdflush(Fmt *f)
{
if(__fmtFdFlush(f) <= 0)
return -1;
return f->nfmt;
}
/*
* initialize an output buffer for buffered printing
*/
int
fmtfdinit(Fmt *f, int fd, char *buf, int size)
{
f->runes = 0;
f->start = buf;
f->to = buf;
f->stop = buf + size;
f->flush = __fmtFdFlush;
f->farg = (void*)(uintptr_t)fd;
f->nfmt = 0;
return 0;
}