Add nl_rate2str()

2 files changed, 27 insertions, 0 deletions

diff --git a/include/netlink/utils.h b/include/netlink/utils.h
index 309e02f..a1ef82e 100644
--- a/include/netlink/utils.h
+++ b/include/netlink/utils.h
@@ -38,9 +38,15 @@ extern "C" {
 
 /** @} */
 
+enum {
+	NL_BYTE_RATE,
+	NL_BIT_RATE,
+};
+
 /* unit pretty-printing */
 extern double	nl_cancel_down_bytes(unsigned long long, char **);
 extern double	nl_cancel_down_bits(unsigned long long, char **);
+extern int	nl_rate2str(unsigned long long, int, char *, size_t);
 extern double	nl_cancel_down_us(uint32_t, char **);
 
 /* generic unit translations */
diff --git a/lib/utils.c b/lib/utils.c
index b507608..c7d3abd 100644
--- a/lib/utils.c
+++ b/lib/utils.c
@@ -151,6 +151,27 @@ double nl_cancel_down_bits(unsigned long long l, char **unit)
 		
 }
 
+int nl_rate2str(unsigned long long rate, int type, char *buf, size_t len)
+{
+	char *unit;
+	double frac;
+
+	switch (type) {
+	case NL_BYTE_RATE:
+		frac = nl_cancel_down_bytes(rate, &unit);
+		break;
+	
+	case NL_BIT_RATE:
+		frac = nl_cancel_down_bits(rate, &unit);
+		break;
+	
+	default:
+		BUG();
+	}
+
+	return snprintf(buf, len, "%.2f%s/s", frac, unit);
+}
+
 /**
  * Cancel down a micro second value
  * @arg	l		micro seconds