From 771d31ace2e8fb923852cb2a70b18b3c8b4edc69 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 13 Jul 2013 03:24:28 +0000
Subject: ext/win32: move

* ext/win32: move from ext/dl and ext/fiddle.  since ext/extmk.rb
  builds extensions in alphabetical order, compiled?('fiddle') under
  ext/dl makes no sense.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41936 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/win32/lib/Win32API.rb | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 ext/win32/lib/Win32API.rb

(limited to 'ext/win32/lib/Win32API.rb')

diff --git a/ext/win32/lib/Win32API.rb b/ext/win32/lib/Win32API.rb
new file mode 100644
index 0000000000..4d7d4887a5
--- /dev/null
+++ b/ext/win32/lib/Win32API.rb
@@ -0,0 +1,31 @@
+# -*- ruby -*-
+# for backward compatibility
+warn "Warning:#{caller[0].sub(/:in `.*'\z/, '')}: Win32API is deprecated after Ruby 1.9.1; use dl directly instead" if $VERBOSE
+
+require 'dl'
+
+class Win32API
+  DLL = {}
+  TYPEMAP = {"0" => DL::TYPE_VOID, "S" => DL::TYPE_VOIDP, "I" => DL::TYPE_LONG}
+  POINTER_TYPE = DL::SIZEOF_VOIDP == DL::SIZEOF_LONG_LONG ? 'q*' : 'l!*'
+
+  def initialize(dllname, func, import, export = "0", calltype = :stdcall)
+    @proto = [import].join.tr("VPpNnLlIi", "0SSI").sub(/^(.)0*$/, '\1')
+    handle = DLL[dllname] ||= DL.dlopen(dllname)
+    @func = DL::CFunc.new(handle[func], TYPEMAP[export.tr("VPpNnLlIi", "0SSI")], func, calltype)
+  rescue DL::DLError => e
+    raise LoadError, e.message, e.backtrace
+  end
+
+  def call(*args)
+    import = @proto.split("")
+    args.each_with_index do |x, i|
+      args[i], = [x == 0 ? nil : x].pack("p").unpack(POINTER_TYPE) if import[i] == "S"
+      args[i], = [x].pack("I").unpack("i") if import[i] == "I"
+    end
+    ret, = @func.call(args)
+    return ret || 0
+  end
+
+  alias Call call
+end
-- 
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