conterm/libc/fmtfdflush.c

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#include <inttypes.h>
#include <u.h>
#include <libc.h>
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#include "fmtdef.h"
/*
* generic routine for flushing a formatting buffer
* to a file descriptor
*/
int
__fmtFdFlush(Fmt *f)
{
int n;
n = (char*)f->to - (char*)f->start;
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if(n && write((uintptr_t)f->farg, f->start, n) != n)
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return 0;
f->to = f->start;
return 1;
}