Moving big_num() into lib/compat.c so tls.c can use it.

[rsync/rsync.git] / lib / compat.c

diff --git a/lib/compat.c b/lib/compat.c
index e0cb9f9..494b64f 100644 (file)
--- a/lib/compat.c
+++ b/lib/compat.c
@@ -151,3 +151,46 @@ int sys_gettimeofday(struct timeval *tv)
        return gettimeofday(tv);
 #endif
 }
+
+/* Return the int64 number as a string.  If the human_flag arg is non-zero,
+ * we may output the number in K, M, or G units.  We can return up to 4
+ * buffers at a time. */
+char *big_num(int64 num, int human_flag)
+{
+       static char bufs[4][128]; /* more than enough room */
+       static unsigned int n;
+       char *s;
+
+       n = (n + 1) % (sizeof bufs / sizeof bufs[0]);
+
+       if (human_flag) {
+               char units = '\0';
+               int mult = human_flag == 1 ? 1000 : 1024;
+               double dnum = 0;
+               if (num > mult*mult*mult) {
+                       dnum = (double)num / (mult*mult*mult);
+                       units = 'G';
+               } else if (num > mult*mult) {
+                       dnum = (double)num / (mult*mult);
+                       units = 'M';
+               } else if (num > mult) {
+                       dnum = (double)num / mult;
+                       units = 'K';
+               }
+               if (units) {
+                       snprintf(bufs[n], sizeof bufs[0], "%.2f%c", dnum, units);
+                       return bufs[n];
+               }
+       }
+
+       s = bufs[n] + sizeof bufs[0] - 1;
+       *s = '\0';
+
+       if (!num)
+               *--s = '0';
+       while (num) {
+               *--s = (char)(num % 10) + '0';
+               num /= 10;
+       }
+       return s;
+}