#include <string.h>
#include "log.h"
#include "queuefn.h"
#include "fmt.h"

#define AUTOSPLIT 23

/* the compiler should optimize this away */
inline unsigned int
ilog10(const unsigned int v)
{
	unsigned int i = 1;
	unsigned int j;

	for (j = v; j > 10; j /= 10)
		i++;

	return i;
}

size_t
queuefn(char *buf, const size_t buflen, const char *dir, const unsigned int inode)
{
	size_t pos = strlen(dir);

	if (pos + 4 + ilog10(AUTOSPLIT) >= buflen)
		return 0;

	memcpy(buf, dir, pos);
	buf[pos++] = '/';

	ultostr(inode % AUTOSPLIT, buf + pos);
	pos += ilog10(AUTOSPLIT);
	buf[pos++] = '/';

	// FIXME: length check
	ultostr(inode, buf + pos);

	return strlen(buf);
}