filesystem.rb in sys-filesystem-1.1.2

- old
+ new

@@ -8,11 +8,11 @@
   class Filesystem
     extend FFI::Library
     ffi_lib FFI::Library::LIBC
 
     # The version of the sys-filesystem library.
-    VERSION = '1.1.1'
+    VERSION = '1.1.2'
 
     private
 
     if RbConfig::CONFIG['host_os'] =~ /sunos|solaris/i
       attach_function(:statvfs, :statvfs64, [:string, :pointer], :int)
@@ -101,13 +101,13 @@
       MNT_DEFWRITE         => 'defwrite',
       MNT_NOATIME          => 'noatime'
     }
 
     # File used to read mount informtion from.
-    if File.exists?('/etc/mtab')
+    if File.exist?('/etc/mtab')
       MOUNT_FILE = '/etc/mtab'
-    elsif File.exists?('/etc/mnttab')
+    elsif File.exist?('/etc/mnttab')
       MOUNT_FILE = '/etc/mnttab'
     else
       MOUNT_FILE = 'getmntinfo'
     end
 
@@ -324,10 +324,30 @@
         @filesystem_id    = nil
         @flags            = nil
         @name_max         = nil
         @base_type        = nil
       end
+
+      # Returns the total space on the partition.
+      def bytes_total
+        blocks * block_size
+      end
+
+      # Returns the total amount of free space on the partition.
+      def bytes_free
+        blocks_available * block_size
+      end
+
+      # Returns the total amount of used space on the partition.
+      def bytes_used
+        bytes_total - bytes_free
+      end
+
+      # Returns the percentage of the partition that has been used.
+      def percent_used
+        100 - (100.0 * bytes_free.to_f / bytes_total.to_f)
+      end
     end
 
     # Mount objects are returned by the Sys::Filesystem.mounts method.
     class Mount
       # The name of the mounted resource.
@@ -546,11 +566,11 @@
       val
     end
   end
 end
 
-class Fixnum
+class Numeric
   # Converts a number to kilobytes.
   def to_kb
     self / 1024
   end
 
@@ -560,7 +580,12 @@
   end
 
   # Converts a number to gigabytes.
   def to_gb
     self / 1073741824
+  end
+
+  # Converts a number to terabytes.
+  def to_tb
+    self / 1099511627776
   end
 end