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771d31ace2
* 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
31 lines
1 KiB
Ruby
31 lines
1 KiB
Ruby
# -*- ruby -*-
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# for backward compatibility
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warn "Warning:#{caller[0].sub(/:in `.*'\z/, '')}: Win32API is deprecated after Ruby 1.9.1; use dl directly instead" if $VERBOSE
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require 'dl'
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class Win32API
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DLL = {}
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TYPEMAP = {"0" => DL::TYPE_VOID, "S" => DL::TYPE_VOIDP, "I" => DL::TYPE_LONG}
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POINTER_TYPE = DL::SIZEOF_VOIDP == DL::SIZEOF_LONG_LONG ? 'q*' : 'l!*'
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def initialize(dllname, func, import, export = "0", calltype = :stdcall)
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@proto = [import].join.tr("VPpNnLlIi", "0SSI").sub(/^(.)0*$/, '\1')
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handle = DLL[dllname] ||= DL.dlopen(dllname)
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@func = DL::CFunc.new(handle[func], TYPEMAP[export.tr("VPpNnLlIi", "0SSI")], func, calltype)
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rescue DL::DLError => e
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raise LoadError, e.message, e.backtrace
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end
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def call(*args)
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import = @proto.split("")
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args.each_with_index do |x, i|
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args[i], = [x == 0 ? nil : x].pack("p").unpack(POINTER_TYPE) if import[i] == "S"
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args[i], = [x].pack("I").unpack("i") if import[i] == "I"
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end
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ret, = @func.call(args)
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return ret || 0
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end
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alias Call call
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end
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