From: Ben Pfaff <blp@cs.stanford.edu>
Date: Sat, 29 Jan 2005 18:19:44 +0000 (+0000)
Subject: Add print_human_readable_size() function.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?p=pintos-anon;a=commitdiff_plain;h=4419844a889e14a9d7b08205a41b7d97fe4b2bfc

Add print_human_readable_size() function.
---

diff --git a/src/lib/stdio.c b/src/lib/stdio.c
index 98b6303..3549d4e 100644
--- a/src/lib/stdio.c
+++ b/src/lib/stdio.c
@@ -608,3 +608,21 @@ hex_dump (uintptr_t ofs, const void *buf_, size_t size, bool ascii)
       size -= n;
     }
 }
+
+/* Prints SIZE, which represents a number of bytes, in a
+   human-readable format, e.g. "256 kB". */
+void
+print_human_readable_size (uint64_t size) 
+{
+  if (size == 1)
+    printf ("1 byte");
+  else 
+    {
+      static const char *factors[] = {"bytes", "kB", "MB", "GB", "TB", NULL};
+      const char **fp;
+
+      for (fp = factors; size >= 1024 && fp[1] != NULL; fp++)
+        size /= 1024;
+      printf ("%"PRIu64" %s", *fp);
+    }
+}
diff --git a/src/lib/stdio.h b/src/lib/stdio.h
index 31be6d8..dc6ec35 100644
--- a/src/lib/stdio.h
+++ b/src/lib/stdio.h
@@ -28,6 +28,7 @@ int hprintf (int, const char *, ...) PRINTF_FORMAT (2, 3);
 int vhprintf (int, const char *, va_list) PRINTF_FORMAT (2, 0);
 #endif
 void hex_dump (uintptr_t ofs, const void *, size_t size, bool ascii);
+void print_human_readable_size (uint64_t size);
 
 /* Internal functions. */
 void __vprintf (const char *format, va_list args,