fmtfdflush.c (417B) download
1/* Copyright (c) 2002-2006 Lucent Technologies; see LICENSE */
2#include "fmt.h"
3#include "fmtdef.h"
4#include "plan9.h"
5
6#include <stdarg.h>
7#include <unistd.h>
8
9/*
10 * generic routine for flushing a formatting buffer
11 * to a file descriptor
12 */
13int __fmtFdFlush(Fmt* f) {
14 int n;
15
16 n = (char*) f->to - (char*) f->start;
17 if (n && write((uintptr) f->farg, f->start, n) != n)
18 return 0;
19 f->to = f->start;
20 return 1;
21}