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author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-07-13 03:24:28 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-07-13 03:24:28 +0000 |
commit | 771d31ace2e8fb923852cb2a70b18b3c8b4edc69 (patch) | |
tree | ec54e1f7be06adceffbee18d763f0ecf5336050e /ext/win32/lib/Win32API.rb | |
parent | 725bc0c870ccc98da77cf6f1259e0a02c2ed6070 (diff) | |
download | ruby-771d31ace2e8fb923852cb2a70b18b3c8b4edc69.tar.gz |
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
Diffstat (limited to 'ext/win32/lib/Win32API.rb')
-rw-r--r-- | ext/win32/lib/Win32API.rb | 31 |
1 files changed, 31 insertions, 0 deletions
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 |