Implement a better num2str()
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
diff --git a/fio.h b/fio.h
index e8c025d..28104cd 100644
--- a/fio.h
+++ b/fio.h
@@ -568,6 +568,8 @@
extern void options_mem_free(struct thread_data *);
extern void td_fill_rand_seeds(struct thread_data *);
extern void add_job_opts(const char **);
+extern char *num2str(unsigned long, int, int, int);
+
#define FIO_GETOPT_JOB 0x89988998
#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
@@ -653,49 +655,6 @@
return 0;
}
-/*
- * Cheesy number->string conversion, complete with carry rounding error.
- */
-static inline char *num2str(unsigned long num, int maxlen, int base, int pow2)
-{
- char postfix[] = { ' ', 'K', 'M', 'G', 'P', 'E' };
- unsigned int thousand;
- char *buf;
- int i;
-
- if (pow2)
- thousand = 1024;
- else
- thousand = 1000;
-
- buf = malloc(128);
-
- for (i = 0; base > 1; i++)
- base /= thousand;
-
- do {
- int len, carry = 0;
-
- len = sprintf(buf, "%'lu", num);
- if (len <= maxlen) {
- if (i >= 1) {
- buf[len] = postfix[i];
- buf[len + 1] = '\0';
- }
- return buf;
- }
-
- if ((num % thousand) >= (thousand / 2))
- carry = 1;
-
- num /= thousand;
- num += carry;
- i++;
- } while (i <= 5);
-
- return buf;
-}
-
static inline int __should_check_rate(struct thread_data *td,
enum fio_ddir ddir)
{