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#include <u.h>
#include <libc.h>
#include <fcall.h>
#include <9pclient.h>
/* C99 nonsense */
#ifdef va_copy
# define VA_COPY(a,b) va_copy(a,b)
# define VA_END(a) va_end(a)
#else
# define VA_COPY(a,b) (a) = (b)
# define VA_END(a)
#endif
static int
fidflush(Fmt *f)
{
int n;
n = (char*)f->to - (char*)f->start;
if(n && fswrite(f->farg, f->start, n) != n)
return 0;
f->to = f->start;
return 1;
}
static int
fsfmtfidinit(Fmt *f, CFid *fid, char *buf, int size)
{
f->runes = 0;
f->start = buf;
f->to = buf;
f->stop = buf + size;
f->flush = fidflush;
f->farg = fid;
f->nfmt = 0;
return 0;
}
int
fsprint(CFid *fd, char *fmt, ...)
{
int n;
va_list args;
va_start(args, fmt);
n = fsvprint(fd, fmt, args);
va_end(args);
return n;
}
int
fsvprint(CFid *fd, char *fmt, va_list args)
{
Fmt f;
char buf[256];
int n;
fsfmtfidinit(&f, fd, buf, sizeof(buf));
VA_COPY(f.args,args);
n = dofmt(&f, fmt);
VA_END(f.args);
if(n > 0 && fidflush(&f) == 0)
return -1;
return n;
}
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