1 files changed, 70 insertions, 0 deletions
diff --git a/ruby_1_8_6/ext/dl/sample/drives.rb b/ruby_1_8_6/ext/dl/sample/drives.rb
new file mode 100644
index 0000000000..8a590404b1
--- /dev/null
+++ b/ruby_1_8_6/ext/dl/sample/drives.rb
@@ -0,0 +1,70 @@
+# -*- ruby -*-
+# drives.rb -- find existing drives and show the drive type.
+
+require 'dl'
+require 'dl/import'
+
+module Kernel32
+  extend DL::Importable
+
+  dlload "kernel32"
+
+  extern "long GetLogicalDrives()"
+  extern "int GetDriveType(char*)"
+  extern "long GetDiskFreeSpace(char*, long ref, long ref, long ref, long ref)"
+end
+
+include Kernel32
+
+buff = Kernel32.getLogicalDrives()
+
+i = 0
+ds = []
+while( i < 26 )
+  mask = (1 << i)
+  if( buff & mask > 0 )
+    ds.push((65+i).chr)
+  end
+  i += 1
+end
+
+=begin
+From the cygwin's /usr/include/w32api/winbase.h:
+#define DRIVE_UNKNOWN 0
+#define DRIVE_NO_ROOT_DIR 1
+#define DRIVE_REMOVABLE 2
+#define DRIVE_FIXED 3
+#define DRIVE_REMOTE 4
+#define DRIVE_CDROM 5
+#define DRIVE_RAMDISK 6
+=end
+
+types = [
+  "unknown",
+  "no root dir",
+  "Removable",
+  "Fixed", 
+  "Remote",
+  "CDROM",
+  "RAM",
+]
+print("Drive : Type (Free Space/Available Space)\n")
+ds.each{|d|
+  t = Kernel32.getDriveType(d + ":\\")
+  Kernel32.getDiskFreeSpace(d + ":\\", 0, 0, 0, 0)
+  _,sec_per_clus,byte_per_sec,free_clus,total_clus = Kernel32._args_
+  fbytes = sec_per_clus * byte_per_sec * free_clus
+  tbytes = sec_per_clus * byte_per_sec * total_clus
+  unit = "B"
+  if( fbytes > 1024 && tbytes > 1024 )
+    fbytes = fbytes / 1024
+    tbytes = tbytes / 1024
+    unit = "K"
+  end
+  if( fbytes > 1024 && tbytes > 1024 )
+    fbytes = fbytes / 1024
+    tbytes = tbytes / 1024
+    unit = "M"
+  end
+  print("#{d} : #{types[t]} (#{fbytes} #{unit}/#{tbytes} #{unit})\n")
+}