libglusterfs/common-utils: Added gf_uint64_2human_readable function.

This function converts the given number to its corresponding representation in
KB, MB, etc.

Signed-off-by: Junaid <junaid@gluster.com>
Signed-off-by: Anand Avati <avati@gluster.com>

BUG: 2829 (Display the quota limit as it is configured)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2829

1 files changed, 36 insertions, 0 deletions

diff --git a/libglusterfs/src/common-utils.c b/libglusterfs/src/common-utils.c
index 29af725a07a..15371d1941f 100644
--- a/libglusterfs/src/common-utils.c
+++ b/libglusterfs/src/common-utils.c
@@ -1262,6 +1262,42 @@ gf_string2uint64_base10 (const char *str, uint64_t *n)
         return -1;
 }
 
+char *
+gf_uint64_2human_readable (uint64_t n)
+{
+        int   ret = 0;
+        char *str = NULL;
+
+        if (n >= GF_UNIT_PB) {
+                ret = gf_asprintf (&str, "%.1lfPB", ((double) n)/GF_UNIT_PB);
+                if (ret < 0)
+                        goto err;
+        } else if (n >= GF_UNIT_TB) {
+                ret = gf_asprintf (&str, "%.1lfTB", ((double) n)/GF_UNIT_TB);
+                if (ret < 0)
+                        goto err;
+        } else if (n >= GF_UNIT_GB) {
+                ret = gf_asprintf (&str, "%.1lfGB", ((double) n)/GF_UNIT_GB);
+                if (ret < 0)
+                        goto err;
+        } else if (n >= GF_UNIT_MB) {
+                ret = gf_asprintf (&str, "%.1lfMB", ((double) n)/GF_UNIT_MB);
+                if (ret < 0)
+                        goto err;
+        } else if (n >= GF_UNIT_KB) {
+                ret = gf_asprintf (&str, "%.1lfKB", ((double) n)/GF_UNIT_KB);
+                if (ret < 0)
+                        goto err;
+        } else {
+                ret = gf_asprintf (&str, "%luBytes", n);
+                if (ret < 0)
+                        goto err;
+        }
+        return str;
+err:
+        return NULL;
+}
+
 int
 gf_string2bytesize (const char *str, uint64_t *n)
 {