root/src/lib9/fmt/fmtfd.c

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DEFINITIONS

This source file includes following definitions.
  1. fmtfdflush
  2. fmtfdinit

/*
 * The authors of this software are Rob Pike and Ken Thompson,
 * with contributions from Mike Burrows and Sean Dorward.
 *
 *     Copyright (c) 2002-2006 by Lucent Technologies.
 *     Portions Copyright (c) 2004 Google Inc.
 * 
 * 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 
 * NOR GOOGLE INC MAKE ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING 
 * THE MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
 */

#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)fd;
        f->flags = 0;
        f->nfmt = 0;
        fmtlocaleinit(f, nil, nil, nil);
        return 0;
}

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