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* ext/fiddle/*: Adding fiddle library to wrap libffi
* test/fiddle/*: testing fiddle extension * ext/dl/lib/dl.rb: Requiring fiddle if it is available * ext/dl/lib/dl/callback.rb: using Fiddle if it is available * ext/dl/lib/dl/func.rb: ditto git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27640 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
tenderlove
parent
ca3c007f05
commit
4bada8b864
22 changed files with 1084 additions and 71 deletions
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@ -1,3 +1,11 @@
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Thu May 6 15:56:12 2010 Aaron Patterson <aaron@tenderlovemaking.com>
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* ext/fiddle/*: Adding fiddle library to wrap libffi
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* test/fiddle/*: testing fiddle extension
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* ext/dl/lib/dl.rb: Requiring fiddle if it is available
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* ext/dl/lib/dl/callback.rb: using Fiddle if it is available
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* ext/dl/lib/dl/func.rb: ditto
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Thu May 6 15:04:37 2010 NARUSE, Yui <naruse@ruby-lang.org>
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* string.c (rb_str_match_m): add description about optional
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12
ext/dl/lib/dl.rb
Normal file
12
ext/dl/lib/dl.rb
Normal file
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@ -0,0 +1,12 @@
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require 'dl.so'
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begin
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require 'fiddle'
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rescue LoadError
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end
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module DL
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def self.fiddle?
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Object.const_defined?(:Fiddle)
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end
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end
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@ -4,22 +4,38 @@ require 'thread'
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module DL
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SEM = Mutex.new
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def set_callback_internal(proc_entry, addr_entry, argc, ty, &cbp)
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if DL.fiddle?
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CdeclCallbackProcs = {}
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CdeclCallbackAddrs = {}
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StdcallCallbackProcs = {}
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StdcallCallbackAddrs = {}
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end
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def set_callback_internal(proc_entry, addr_entry, argc, ty, abi = nil, &cbp)
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if( argc < 0 )
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raise(ArgumentError, "arity should not be less than 0.")
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end
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addr = nil
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SEM.synchronize{
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ary = proc_entry[ty]
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(0...MAX_CALLBACK).each{|n|
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idx = (n * DLSTACK_SIZE) + argc
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if( ary[idx].nil? )
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ary[idx] = cbp
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addr = addr_entry[ty][idx]
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break
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end
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if DL.fiddle?
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abi ||= Fiddle::Function::DEFAULT
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closure = Fiddle::Closure::BlockCaller.new(ty, [TYPE_VOIDP] * argc, abi, &cbp)
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proc_entry[closure.to_i] = closure
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addr = closure.to_i
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else
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SEM.synchronize{
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ary = proc_entry[ty]
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(0...MAX_CALLBACK).each{|n|
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idx = (n * DLSTACK_SIZE) + argc
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if( ary[idx].nil? )
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ary[idx] = cbp
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addr = addr_entry[ty][idx]
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break
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end
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}
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}
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}
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end
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addr
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end
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@ -28,31 +44,42 @@ module DL
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end
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def set_stdcall_callback(ty, argc, &cbp)
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set_callback_internal(StdcallCallbackProcs, StdcallCallbackAddrs, argc, ty, &cbp)
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if DL.fiddle?
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set_callback_internal(StdcallCallbackProcs, StdcallCallbackAddrs, argc, ty, Fiddle::Function::STDCALL, &cbp)
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else
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set_callback_internal(StdcallCallbackProcs, StdcallCallbackAddrs, argc, ty, &cbp)
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end
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end
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def remove_callback_internal(proc_entry, addr_entry, addr, ctype = nil)
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index = nil
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if( ctype )
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addr_entry[ctype].each_with_index{|xaddr, idx|
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if( xaddr == addr )
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index = idx
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end
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}
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if DL.fiddle?
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addr = addr.to_i
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return false unless proc_entry.key?(addr)
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proc_entry.delete(addr)
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true
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else
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addr_entry.each{|ty,entry|
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entry.each_with_index{|xaddr, idx|
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index = nil
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if( ctype )
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addr_entry[ctype].each_with_index{|xaddr, idx|
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if( xaddr == addr )
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index = idx
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end
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}
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}
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end
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if( index and proc_entry[ctype][index] )
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proc_entry[ctype][index] = nil
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return true
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else
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return false
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else
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addr_entry.each{|ty,entry|
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entry.each_with_index{|xaddr, idx|
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if( xaddr == addr )
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index = idx
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end
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}
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}
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end
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if( index and proc_entry[ctype][index] )
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proc_entry[ctype][index] = nil
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return true
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else
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return false
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end
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end
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end
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@ -5,21 +5,37 @@ require 'dl/value'
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require 'thread'
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module DL
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class Function
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parent = DL.fiddle? ? Fiddle::Function : Object
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class Function < parent
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include DL
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include ValueUtil
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def initialize(cfunc, argtypes, &proc)
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@cfunc = cfunc
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@stack = Stack.new(argtypes.collect{|ty| ty.abs})
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if( @cfunc.ctype < 0 )
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@cfunc.ctype = @cfunc.ctype.abs
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@unsigned = true
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def initialize cfunc, argtypes, abi = nil, &block
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if DL.fiddle?
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abi ||= Fiddle::Function::DEFAULT
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if block_given?
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@cfunc = Class.new(Fiddle::Closure) {
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define_method(:call, block)
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}.new(cfunc.ctype, argtypes)
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else
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@cfunc = cfunc
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end
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@args = argtypes
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super(@cfunc, @args.reject { |x| x == TYPE_VOID }, cfunc.ctype, abi)
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else
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@unsigned = false
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end
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if( proc )
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bind(&proc)
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@cfunc = cfunc
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@stack = Stack.new(argtypes.collect{|ty| ty.abs})
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if( @cfunc.ctype < 0 )
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@cfunc.ctype = @cfunc.ctype.abs
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@unsigned = true
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else
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@unsigned = false
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end
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if block_given?
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bind(&block)
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end
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end
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end
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@ -32,11 +48,18 @@ module DL
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end
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def call(*args, &block)
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funcs = []
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args = wrap_args(args, @stack.types, funcs, &block)
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r = @cfunc.call(@stack.pack(args))
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funcs.each{|f| f.unbind_at_call()}
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return wrap_result(r)
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if DL.fiddle?
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if block_given?
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args.find { |a| DL::Function === a }.bind_at_call(&block)
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end
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super
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else
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funcs = []
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args = wrap_args(args, @stack.types, funcs, &block)
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r = @cfunc.call(@stack.pack(args))
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funcs.each{|f| f.unbind_at_call()}
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return wrap_result(r)
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end
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end
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def wrap_result(r)
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@ -52,31 +75,44 @@ module DL
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end
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def bind(&block)
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if( !block )
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raise(RuntimeError, "block must be given.")
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end
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if( @cfunc.ptr == 0 )
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cb = Proc.new{|*args|
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ary = @stack.unpack(args)
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@stack.types.each_with_index{|ty, idx|
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case ty
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when TYPE_VOIDP
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ary[idx] = CPtr.new(ary[idx])
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end
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}
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r = block.call(*ary)
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wrap_arg(r, @cfunc.ctype, [])
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}
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case @cfunc.calltype
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when :cdecl
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@cfunc.ptr = set_cdecl_callback(@cfunc.ctype, @stack.size, &cb)
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when :stdcall
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@cfunc.ptr = set_stdcall_callback(@cfunc.ctype, @stack.size, &cb)
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else
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raise(RuntimeError, "unsupported calltype: #{@cfunc.calltype}")
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if DL.fiddle?
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@cfunc = Class.new(Fiddle::Closure) {
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def initialize ctype, args, block
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super(ctype, args)
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@block = block
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end
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def call *args
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@block.call(*args)
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end
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}.new(@cfunc.ctype, @args, block)
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else
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if( !block )
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raise(RuntimeError, "block must be given.")
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end
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if( @cfunc.ptr == 0 )
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raise(RuntimeException, "can't bind C function.")
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cb = Proc.new{|*args|
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ary = @stack.unpack(args)
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@stack.types.each_with_index{|ty, idx|
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case ty
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when TYPE_VOIDP
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ary[idx] = CPtr.new(ary[idx])
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end
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}
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r = block.call(*ary)
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wrap_arg(r, @cfunc.ctype, [])
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}
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case @cfunc.calltype
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when :cdecl
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@cfunc.ptr = set_cdecl_callback(@cfunc.ctype, @stack.size, &cb)
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when :stdcall
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@cfunc.ptr = set_stdcall_callback(@cfunc.ctype, @stack.size, &cb)
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else
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raise(RuntimeError, "unsupported calltype: #{@cfunc.calltype}")
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end
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if( @cfunc.ptr == 0 )
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raise(RuntimeException, "can't bind C function.")
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end
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end
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end
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end
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@ -211,9 +211,17 @@ module DL
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end
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def bind_function(name, ctype, argtype, call_type = nil, &block)
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f = Function.new(CFunc.new(0, ctype, name, call_type || :cdecl), argtype)
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f.bind(&block)
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f
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if DL.fiddle?
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closure = Class.new(Fiddle::Closure) {
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define_method(:call, block)
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}.new(ctype, argtype)
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Function.new(closure, argtype)
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else
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f = Function.new(CFunc.new(0, ctype, name, call_type || :cdecl), argtype)
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f.bind(&block)
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f
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end
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end
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def create_temp_function(name, ctype, argtype, call_type = nil)
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@ -45,7 +45,7 @@ module DL
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result
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end
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def wrap_arg(arg, ty, funcs, &block)
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def wrap_arg(arg, ty, funcs = [], &block)
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funcs ||= []
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case arg
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when nil
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232
ext/fiddle/closure.c
Normal file
232
ext/fiddle/closure.c
Normal file
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@ -0,0 +1,232 @@
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#include <fiddle.h>
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VALUE cFiddleClosure;
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typedef struct {
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void * code;
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ffi_closure *pcl;
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ffi_cif * cif;
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int argc;
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ffi_type **argv;
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} fiddle_closure;
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static void
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dealloc(void * ptr)
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{
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fiddle_closure * cls = (fiddle_closure *)ptr;
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#ifndef MACOSX
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ffi_closure_free(cls->pcl);
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#else
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munmap(cls->pcl, sizeof(cls->pcl));
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#endif
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xfree(cls->cif);
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if (cls->argv) xfree(cls->argv);
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xfree(cls);
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}
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static size_t
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closure_memsize(const void * ptr)
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{
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fiddle_closure * cls = (fiddle_closure *)ptr;
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size_t size = 0;
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if (ptr) {
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size += sizeof(*cls);
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#if !defined(FFI_NO_RAW_API) || !FFI_NO_RAW_API
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size += ffi_raw_size(cls->cif);
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#endif
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size += sizeof(*cls->argv);
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size += sizeof(ffi_closure);
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}
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return size;
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}
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const rb_data_type_t closure_data_type = {
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"fiddle/closure",
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0, dealloc, closure_memsize,
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};
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void
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callback(ffi_cif *cif, void *resp, void **args, void *ctx)
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{
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VALUE self = (VALUE)ctx;
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VALUE rbargs = rb_iv_get(self, "@args");
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VALUE ctype = rb_iv_get(self, "@ctype");
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int argc = RARRAY_LENINT(rbargs);
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VALUE *params = xcalloc(argc, sizeof(VALUE *));
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VALUE ret;
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VALUE cPointer;
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int i, type;
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cPointer = rb_const_get(mFiddle, rb_intern("Pointer"));
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for (i = 0; i < argc; i++) {
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type = NUM2INT(RARRAY_PTR(rbargs)[i]);
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switch (type) {
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case TYPE_VOID:
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argc = 0;
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break;
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case TYPE_INT:
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params[i] = INT2NUM(*(int *)args[i]);
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break;
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case TYPE_VOIDP:
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params[i] = rb_funcall(cPointer, rb_intern("[]"), 1,
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PTR2NUM(*(void **)args[i]));
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break;
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case TYPE_LONG:
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params[i] = LONG2NUM(*(long *)args[i]);
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break;
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case TYPE_CHAR:
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params[i] = INT2NUM(*(char *)args[i]);
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break;
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case TYPE_DOUBLE:
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params[i] = rb_float_new(*(double *)args[i]);
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break;
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case TYPE_FLOAT:
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params[i] = rb_float_new(*(float *)args[i]);
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break;
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#if HAVE_LONG_LONG
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case TYPE_LONG_LONG:
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params[i] = rb_ull2inum(*(unsigned LONG_LONG *)args[i]);
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break;
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#endif
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default:
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rb_raise(rb_eRuntimeError, "closure args: %d", type);
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}
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}
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ret = rb_funcall2(self, rb_intern("call"), argc, params);
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type = NUM2INT(ctype);
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switch (type) {
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case TYPE_VOID:
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break;
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case TYPE_LONG:
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*(long *)resp = NUM2LONG(ret);
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break;
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case TYPE_CHAR:
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*(char *)resp = NUM2INT(ret);
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break;
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case TYPE_VOIDP:
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*(void **)resp = NUM2PTR(ret);
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break;
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case TYPE_INT:
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*(int *)resp = NUM2INT(ret);
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break;
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case TYPE_DOUBLE:
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*(double *)resp = NUM2DBL(ret);
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break;
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case TYPE_FLOAT:
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*(float *)resp = (float)NUM2DBL(ret);
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break;
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#if HAVE_LONG_LONG
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case TYPE_LONG_LONG:
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*(unsigned LONG_LONG *)resp = rb_big2ull(ret);
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break;
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#endif
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default:
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rb_raise(rb_eRuntimeError, "closure retval: %d", type);
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}
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xfree(params);
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}
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static VALUE
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allocate(VALUE klass)
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{
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fiddle_closure * closure;
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VALUE i = TypedData_Make_Struct(klass, fiddle_closure,
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&closure_data_type, closure);
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#ifndef MACOSX
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closure->pcl = ffi_closure_alloc(sizeof(ffi_closure), &closure->code);
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#else
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closure->pcl = mmap(NULL, sizeof(ffi_closure), PROT_READ | PROT_WRITE,
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MAP_ANON | MAP_PRIVATE, -1, 0);
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#endif
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closure->cif = xmalloc(sizeof(ffi_cif));
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return i;
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}
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static VALUE
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initialize(int rbargc, VALUE argv[], VALUE self)
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{
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VALUE ret;
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VALUE args;
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VALUE abi;
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fiddle_closure * cl;
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ffi_cif * cif;
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ffi_closure *pcl;
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ffi_status result;
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int i, argc;
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if (2 == rb_scan_args(rbargc, argv, "21", &ret, &args, &abi))
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abi = INT2NUM(FFI_DEFAULT_ABI);
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Check_Type(args, T_ARRAY);
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argc = RARRAY_LENINT(args);
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TypedData_Get_Struct(self, fiddle_closure, &closure_data_type, cl);
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cl->argv = (ffi_type **)xcalloc(argc + 1, sizeof(ffi_type *));
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for (i = 0; i < argc; i++) {
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int type = NUM2INT(RARRAY_PTR(args)[i]);
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cl->argv[i] = INT2FFI_TYPE(type);
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}
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cl->argv[argc] = NULL;
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rb_iv_set(self, "@ctype", ret);
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rb_iv_set(self, "@args", args);
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cif = cl->cif;
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||||
pcl = cl->pcl;
|
||||
|
||||
result = ffi_prep_cif(cif, NUM2INT(abi), argc,
|
||||
INT2FFI_TYPE(NUM2INT(ret)),
|
||||
cl->argv);
|
||||
|
||||
if (FFI_OK != result)
|
||||
rb_raise(rb_eRuntimeError, "error prepping CIF %d", result);
|
||||
|
||||
#ifndef MACOSX
|
||||
result = ffi_prep_closure_loc(pcl, cif, callback,
|
||||
(void *)self, cl->code);
|
||||
#else
|
||||
result = ffi_prep_closure(pcl, cif, callback, (void *)self);
|
||||
cl->code = (void *)pcl;
|
||||
mprotect(pcl, sizeof(pcl), PROT_READ | PROT_EXEC);
|
||||
#endif
|
||||
|
||||
if (FFI_OK != result)
|
||||
rb_raise(rb_eRuntimeError, "error prepping closure %d", result);
|
||||
|
||||
return self;
|
||||
}
|
||||
|
||||
static VALUE
|
||||
to_i(VALUE self)
|
||||
{
|
||||
fiddle_closure * cl;
|
||||
void *code;
|
||||
|
||||
TypedData_Get_Struct(self, fiddle_closure, &closure_data_type, cl);
|
||||
|
||||
code = cl->code;
|
||||
|
||||
return PTR2NUM(code);
|
||||
}
|
||||
|
||||
void
|
||||
Init_fiddle_closure()
|
||||
{
|
||||
cFiddleClosure = rb_define_class_under(mFiddle, "Closure", rb_cObject);
|
||||
|
||||
rb_define_alloc_func(cFiddleClosure, allocate);
|
||||
|
||||
rb_define_method(cFiddleClosure, "initialize", initialize, -1);
|
||||
rb_define_method(cFiddleClosure, "to_i", to_i, 0);
|
||||
}
|
||||
/* vim: set noet sw=4 sts=4 */
|
||||
8
ext/fiddle/closure.h
Normal file
8
ext/fiddle/closure.h
Normal file
|
|
@ -0,0 +1,8 @@
|
|||
#ifndef FIDDLE_CLOSURE_H
|
||||
#define FIDDLE_CLOSURE_H
|
||||
|
||||
#include <fiddle.h>
|
||||
|
||||
void Init_fiddle_closure();
|
||||
|
||||
#endif
|
||||
126
ext/fiddle/conversions.c
Normal file
126
ext/fiddle/conversions.c
Normal file
|
|
@ -0,0 +1,126 @@
|
|||
#include <fiddle.h>
|
||||
|
||||
ffi_type *
|
||||
int_to_ffi_type(int type)
|
||||
{
|
||||
int signed_p = 1;
|
||||
|
||||
if (type < 0) {
|
||||
type = -1 * type;
|
||||
signed_p = 0;
|
||||
}
|
||||
|
||||
#define rb_ffi_type_of(t) (signed_p ? &ffi_type_s##t : &ffi_type_u##t)
|
||||
|
||||
switch (type) {
|
||||
case TYPE_VOID:
|
||||
return &ffi_type_void;
|
||||
case TYPE_VOIDP:
|
||||
return &ffi_type_pointer;
|
||||
case TYPE_CHAR:
|
||||
return rb_ffi_type_of(char);
|
||||
case TYPE_SHORT:
|
||||
return rb_ffi_type_of(short);
|
||||
case TYPE_INT:
|
||||
return rb_ffi_type_of(int);
|
||||
case TYPE_LONG:
|
||||
return rb_ffi_type_of(long);
|
||||
#if HAVE_LONG_LONG
|
||||
case TYPE_LONG_LONG:
|
||||
return rb_ffi_type_of(int64);
|
||||
#endif
|
||||
case TYPE_FLOAT:
|
||||
return &ffi_type_float;
|
||||
case TYPE_DOUBLE:
|
||||
return &ffi_type_double;
|
||||
default:
|
||||
rb_raise(rb_eRuntimeError, "unknown type %d", type);
|
||||
}
|
||||
return &ffi_type_pointer;
|
||||
}
|
||||
|
||||
void
|
||||
value_to_generic(int type, VALUE src, fiddle_generic * dst)
|
||||
{
|
||||
int signed_p = 1;
|
||||
|
||||
if (type < 0) {
|
||||
type = -1 * type;
|
||||
signed_p = 0;
|
||||
}
|
||||
|
||||
switch (type) {
|
||||
case TYPE_VOID:
|
||||
break;
|
||||
case TYPE_VOIDP:
|
||||
dst->pointer = NUM2PTR(rb_Integer(src));
|
||||
break;
|
||||
case TYPE_CHAR:
|
||||
case TYPE_SHORT:
|
||||
case TYPE_INT:
|
||||
dst->sint = NUM2INT(src);
|
||||
break;
|
||||
case TYPE_LONG:
|
||||
if (signed_p)
|
||||
dst->slong = NUM2LONG(src);
|
||||
else
|
||||
dst->ulong = NUM2LONG(src);
|
||||
break;
|
||||
#if HAVE_LONG_LONG
|
||||
case TYPE_LONG_LONG:
|
||||
dst->long_long = rb_big2ull(src);
|
||||
break;
|
||||
#endif
|
||||
case TYPE_FLOAT:
|
||||
dst->ffloat = (float)NUM2DBL(src);
|
||||
break;
|
||||
case TYPE_DOUBLE:
|
||||
dst->ddouble = NUM2DBL(src);
|
||||
break;
|
||||
default:
|
||||
rb_raise(rb_eRuntimeError, "unknown type %d", type);
|
||||
}
|
||||
}
|
||||
|
||||
VALUE
|
||||
generic_to_value(VALUE rettype, fiddle_generic retval)
|
||||
{
|
||||
int signed_p = 1;
|
||||
int type = NUM2INT(rettype);
|
||||
VALUE cPointer;
|
||||
|
||||
cPointer = rb_const_get(mFiddle, rb_intern("Pointer"));
|
||||
|
||||
if (type < 0) {
|
||||
type = -1 * type;
|
||||
signed_p = 0;
|
||||
}
|
||||
|
||||
switch (type) {
|
||||
case TYPE_VOID:
|
||||
return Qnil;
|
||||
case TYPE_VOIDP:
|
||||
return rb_funcall(cPointer, rb_intern("[]"), 1,
|
||||
PTR2NUM((void *)retval.pointer));
|
||||
case TYPE_CHAR:
|
||||
case TYPE_SHORT:
|
||||
case TYPE_INT:
|
||||
return INT2NUM(retval.sint);
|
||||
case TYPE_LONG:
|
||||
if (signed_p) return LONG2NUM(retval.slong);
|
||||
return ULONG2NUM(retval.ulong);
|
||||
#if HAVE_LONG_LONG
|
||||
case TYPE_LONG_LONG:
|
||||
return rb_ll2inum(retval.long_long);
|
||||
break;
|
||||
#endif
|
||||
case TYPE_FLOAT:
|
||||
return rb_float_new(retval.ffloat);
|
||||
case TYPE_DOUBLE:
|
||||
return rb_float_new(retval.ddouble);
|
||||
default:
|
||||
rb_raise(rb_eRuntimeError, "unknown type %d", type);
|
||||
}
|
||||
}
|
||||
|
||||
/* vim: set noet sw=4 sts=4 */
|
||||
41
ext/fiddle/conversions.h
Normal file
41
ext/fiddle/conversions.h
Normal file
|
|
@ -0,0 +1,41 @@
|
|||
#ifndef FIDDLE_CONVERSIONS_H
|
||||
#define FIDDLE_CONVERSIONS_H
|
||||
|
||||
#include <fiddle.h>
|
||||
|
||||
typedef union
|
||||
{
|
||||
unsigned char uchar; /* ffi_type_uchar */
|
||||
signed char schar; /* ffi_type_schar */
|
||||
unsigned short ushort; /* ffi_type_sshort */
|
||||
signed short sshort; /* ffi_type_ushort */
|
||||
unsigned int uint; /* ffi_type_uint */
|
||||
signed int sint; /* ffi_type_sint */
|
||||
unsigned long ulong; /* ffi_type_ulong */
|
||||
signed long slong; /* ffi_type_slong */
|
||||
float ffloat; /* ffi_type_float */
|
||||
double ddouble; /* ffi_type_double */
|
||||
#if HAVE_LONG_LONG
|
||||
unsigned LONG_LONG long_long; /* ffi_type_uint64 */
|
||||
#endif
|
||||
void * pointer; /* ffi_type_pointer */
|
||||
} fiddle_generic;
|
||||
|
||||
ffi_type * int_to_ffi_type(int type);
|
||||
void value_to_generic(int type, VALUE src, fiddle_generic * dst);
|
||||
VALUE generic_to_value(VALUE rettype, fiddle_generic retval);
|
||||
|
||||
#define VALUE2GENERIC(_type, _src, _dst) value_to_generic(_type, _src, _dst)
|
||||
#define INT2FFI_TYPE(_type) int_to_ffi_type(_type)
|
||||
#define GENERIC2VALUE(_type, _retval) generic_to_value(_type, _retval)
|
||||
|
||||
#if SIZEOF_VOIDP == SIZEOF_LONG
|
||||
# define PTR2NUM(x) (ULONG2NUM((unsigned long)(x)))
|
||||
# define NUM2PTR(x) ((void*)(NUM2ULONG(x)))
|
||||
#else
|
||||
/* # error --->> Ruby/DL2 requires sizeof(void*) == sizeof(long) to be compiled. <<--- */
|
||||
# define PTR2NUM(x) (ULL2NUM((unsigned long long)(x)))
|
||||
# define NUM2PTR(x) ((void*)(NUM2ULL(x)))
|
||||
#endif
|
||||
|
||||
#endif
|
||||
23
ext/fiddle/extconf.rb
Normal file
23
ext/fiddle/extconf.rb
Normal file
|
|
@ -0,0 +1,23 @@
|
|||
require 'mkmf'
|
||||
|
||||
# :stopdoc:
|
||||
|
||||
dir_config 'libffi'
|
||||
|
||||
unless have_header('ffi.h')
|
||||
if have_header('ffi/ffi.h')
|
||||
$defs.push(format('-DUSE_HEADER_HACKS'))
|
||||
else
|
||||
abort "ffi.h is missing. Please install libffi."
|
||||
end
|
||||
end
|
||||
|
||||
unless have_library('ffi')
|
||||
abort "libffi is missing. Please install libffi."
|
||||
end
|
||||
|
||||
have_header 'sys/mman.h'
|
||||
|
||||
create_makefile 'fiddle'
|
||||
|
||||
# :startdoc:
|
||||
30
ext/fiddle/fiddle.c
Normal file
30
ext/fiddle/fiddle.c
Normal file
|
|
@ -0,0 +1,30 @@
|
|||
#include <fiddle.h>
|
||||
|
||||
VALUE mFiddle;
|
||||
|
||||
void Init_fiddle()
|
||||
{
|
||||
mFiddle = rb_define_module("Fiddle");
|
||||
|
||||
rb_define_const(mFiddle, "TYPE_VOID", INT2NUM(TYPE_VOID));
|
||||
rb_define_const(mFiddle, "TYPE_VOIDP", INT2NUM(TYPE_VOIDP));
|
||||
rb_define_const(mFiddle, "TYPE_CHAR", INT2NUM(TYPE_CHAR));
|
||||
rb_define_const(mFiddle, "TYPE_SHORT", INT2NUM(TYPE_SHORT));
|
||||
rb_define_const(mFiddle, "TYPE_INT", INT2NUM(TYPE_INT));
|
||||
rb_define_const(mFiddle, "TYPE_LONG", INT2NUM(TYPE_LONG));
|
||||
#if HAVE_LONG_LONG
|
||||
rb_define_const(mFiddle, "TYPE_LONG_LONG", INT2NUM(TYPE_LONG_LONG));
|
||||
#endif
|
||||
rb_define_const(mFiddle, "TYPE_FLOAT", INT2NUM(TYPE_FLOAT));
|
||||
rb_define_const(mFiddle, "TYPE_DOUBLE", INT2NUM(TYPE_DOUBLE));
|
||||
|
||||
#if defined(HAVE_WINDOWS_H)
|
||||
rb_define_const(mFiddle, "WINDOWS", Qtrue);
|
||||
#else
|
||||
rb_define_const(mFiddle, "WINDOWS", Qfalse);
|
||||
#endif
|
||||
|
||||
Init_fiddle_function();
|
||||
Init_fiddle_closure();
|
||||
}
|
||||
/* vim: set noet sws=4 sw=4: */
|
||||
45
ext/fiddle/fiddle.h
Normal file
45
ext/fiddle/fiddle.h
Normal file
|
|
@ -0,0 +1,45 @@
|
|||
#ifndef FIDDLE_H
|
||||
#define FIDDLE_H
|
||||
|
||||
#include <ruby.h>
|
||||
#include <errno.h>
|
||||
|
||||
#if defined(HAVE_WINDOWS_H)
|
||||
#include <windows.h>
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_SYS_MMAN_H
|
||||
#include <sys/mman.h>
|
||||
#endif
|
||||
|
||||
#ifdef USE_HEADER_HACKS
|
||||
#include <ffi/ffi.h>
|
||||
#else
|
||||
#include <ffi.h>
|
||||
#endif
|
||||
|
||||
#include <closure.h>
|
||||
#include <conversions.h>
|
||||
#include <function.h>
|
||||
|
||||
/* FIXME
|
||||
* These constants need to match up with DL. We need to refactor this to use
|
||||
* the DL header files or vice versa.
|
||||
*/
|
||||
|
||||
#define TYPE_VOID 0
|
||||
#define TYPE_VOIDP 1
|
||||
#define TYPE_CHAR 2
|
||||
#define TYPE_SHORT 3
|
||||
#define TYPE_INT 4
|
||||
#define TYPE_LONG 5
|
||||
#if HAVE_LONG_LONG
|
||||
#define TYPE_LONG_LONG 6
|
||||
#endif
|
||||
#define TYPE_FLOAT 7
|
||||
#define TYPE_DOUBLE 8
|
||||
|
||||
extern VALUE mFiddle;
|
||||
|
||||
#endif
|
||||
/* vim: set noet sws=4 sw=4: */
|
||||
155
ext/fiddle/function.c
Normal file
155
ext/fiddle/function.c
Normal file
|
|
@ -0,0 +1,155 @@
|
|||
#include <fiddle.h>
|
||||
|
||||
VALUE cFiddleFunction;
|
||||
|
||||
static void
|
||||
deallocate(void *p)
|
||||
{
|
||||
ffi_cif *ptr = p;
|
||||
if (ptr->arg_types) xfree(ptr->arg_types);
|
||||
xfree(ptr);
|
||||
}
|
||||
|
||||
static size_t
|
||||
function_memsize(const void *p)
|
||||
{
|
||||
/* const */ffi_cif *ptr = (ffi_cif *)p;
|
||||
size_t size = 0;
|
||||
|
||||
if (ptr) {
|
||||
size += sizeof(*ptr);
|
||||
#if !defined(FFI_NO_RAW_API) || !FFI_NO_RAW_API
|
||||
size += ffi_raw_size(ptr);
|
||||
#endif
|
||||
}
|
||||
return size;
|
||||
}
|
||||
|
||||
const rb_data_type_t function_data_type = {
|
||||
"fiddle/function",
|
||||
0, deallocate, function_memsize,
|
||||
};
|
||||
|
||||
static VALUE
|
||||
allocate(VALUE klass)
|
||||
{
|
||||
ffi_cif * cif;
|
||||
|
||||
return TypedData_Make_Struct(klass, ffi_cif, &function_data_type, cif);
|
||||
}
|
||||
|
||||
static VALUE
|
||||
initialize(int argc, VALUE argv[], VALUE self)
|
||||
{
|
||||
ffi_cif * cif;
|
||||
ffi_type **arg_types;
|
||||
ffi_status result;
|
||||
VALUE ptr, args, ret_type, abi;
|
||||
int i;
|
||||
|
||||
rb_scan_args(argc, argv, "31", &ptr, &args, &ret_type, &abi);
|
||||
if(NIL_P(abi)) abi = INT2NUM(FFI_DEFAULT_ABI);
|
||||
|
||||
Check_Type(args, T_ARRAY);
|
||||
|
||||
rb_iv_set(self, "@ptr", ptr);
|
||||
rb_iv_set(self, "@args", args);
|
||||
rb_iv_set(self, "@return_type", ret_type);
|
||||
rb_iv_set(self, "@abi", abi);
|
||||
|
||||
TypedData_Get_Struct(self, ffi_cif, &function_data_type, cif);
|
||||
|
||||
arg_types = xcalloc(RARRAY_LEN(args) + 1, sizeof(ffi_type *));
|
||||
|
||||
for (i = 0; i < RARRAY_LEN(args); i++) {
|
||||
int type = NUM2INT(RARRAY_PTR(args)[i]);
|
||||
arg_types[i] = INT2FFI_TYPE(type);
|
||||
}
|
||||
arg_types[RARRAY_LEN(args)] = NULL;
|
||||
|
||||
result = ffi_prep_cif (
|
||||
cif,
|
||||
NUM2INT(abi),
|
||||
RARRAY_LENINT(args),
|
||||
INT2FFI_TYPE(NUM2INT(ret_type)),
|
||||
arg_types);
|
||||
|
||||
if (result)
|
||||
rb_raise(rb_eRuntimeError, "error creating CIF %d", result);
|
||||
|
||||
return self;
|
||||
}
|
||||
|
||||
static VALUE
|
||||
function_call(int argc, VALUE argv[], VALUE self)
|
||||
{
|
||||
ffi_cif * cif;
|
||||
fiddle_generic retval;
|
||||
fiddle_generic *generic_args;
|
||||
void **values;
|
||||
void * fun_ptr;
|
||||
VALUE cfunc, types, cPointer;
|
||||
int i;
|
||||
|
||||
cfunc = rb_iv_get(self, "@ptr");
|
||||
types = rb_iv_get(self, "@args");
|
||||
cPointer = rb_const_get(mFiddle, rb_intern("Pointer"));
|
||||
|
||||
if(argc != RARRAY_LENINT(types)) {
|
||||
rb_raise(rb_eArgError, "wrong number of arguments (%d for %d)",
|
||||
argc, RARRAY_LENINT(types));
|
||||
}
|
||||
|
||||
TypedData_Get_Struct(self, ffi_cif, &function_data_type, cif);
|
||||
|
||||
values = xcalloc((size_t)argc + 1, (size_t)sizeof(void *));
|
||||
generic_args = xcalloc((size_t)argc, (size_t)sizeof(fiddle_generic));
|
||||
|
||||
for (i = 0; i < argc; i++) {
|
||||
VALUE type = RARRAY_PTR(types)[i];
|
||||
VALUE src = argv[i];
|
||||
|
||||
if(NUM2INT(type) == TYPE_VOIDP) {
|
||||
if(NIL_P(src)) {
|
||||
src = INT2NUM(0);
|
||||
} else if(cPointer != CLASS_OF(src)) {
|
||||
src = rb_funcall(cPointer, rb_intern("[]"), 1, src);
|
||||
}
|
||||
src = rb_Integer(src);
|
||||
}
|
||||
|
||||
VALUE2GENERIC(NUM2INT(type), src, &generic_args[i]);
|
||||
values[i] = (void *)&generic_args[i];
|
||||
}
|
||||
values[argc] = NULL;
|
||||
|
||||
ffi_call(cif, NUM2PTR(rb_Integer(cfunc)), &retval, values);
|
||||
|
||||
rb_funcall(mFiddle, rb_intern("last_error="), 1, INT2NUM(errno));
|
||||
#if defined(HAVE_WINDOWS_H)
|
||||
rb_funcall(mFiddle, rb_intern("win32_last_error="), 1, INT2NUM(errno));
|
||||
#endif
|
||||
|
||||
xfree(values);
|
||||
xfree(generic_args);
|
||||
|
||||
return GENERIC2VALUE(rb_iv_get(self, "@return_type"), retval);
|
||||
}
|
||||
|
||||
void
|
||||
Init_fiddle_function(void)
|
||||
{
|
||||
cFiddleFunction = rb_define_class_under(mFiddle, "Function", rb_cObject);
|
||||
|
||||
rb_define_const(cFiddleFunction, "DEFAULT", INT2NUM(FFI_DEFAULT_ABI));
|
||||
|
||||
#ifdef FFI_STDCALL
|
||||
rb_define_const(cFiddleFunction, "STDCALL", INT2NUM(FFI_STDCALL));
|
||||
#endif
|
||||
|
||||
rb_define_alloc_func(cFiddleFunction, allocate);
|
||||
|
||||
rb_define_method(cFiddleFunction, "call", function_call, -1);
|
||||
rb_define_method(cFiddleFunction, "initialize", initialize, -1);
|
||||
}
|
||||
/* vim: set noet sws=4 sw=4: */
|
||||
8
ext/fiddle/function.h
Normal file
8
ext/fiddle/function.h
Normal file
|
|
@ -0,0 +1,8 @@
|
|||
#ifndef FIDDLE_FUNCTION_H
|
||||
#define FIDDLE_FUNCTION_H
|
||||
|
||||
#include <fiddle.h>
|
||||
|
||||
void Init_fiddle_function();
|
||||
|
||||
#endif
|
||||
27
ext/fiddle/lib/fiddle.rb
Normal file
27
ext/fiddle/lib/fiddle.rb
Normal file
|
|
@ -0,0 +1,27 @@
|
|||
require 'fiddle.so'
|
||||
require 'fiddle/function'
|
||||
require 'fiddle/closure'
|
||||
require 'dl'
|
||||
|
||||
module Fiddle
|
||||
Pointer = DL::CPtr
|
||||
|
||||
if WINDOWS
|
||||
def self.win32_last_error
|
||||
Thread.current[:__FIDDLE_WIN32_LAST_ERROR__]
|
||||
end
|
||||
|
||||
def self.win32_last_error= error
|
||||
Thread.current[:__FIDDLE_WIN32_LAST_ERROR__] = error
|
||||
end
|
||||
end
|
||||
|
||||
def self.last_error
|
||||
Thread.current[:__FIDDLE_LAST_ERROR__]
|
||||
end
|
||||
|
||||
def self.last_error= error
|
||||
Thread.current[:__DL2_LAST_ERROR__] = error
|
||||
Thread.current[:__FIDDLE_LAST_ERROR__] = error
|
||||
end
|
||||
end
|
||||
17
ext/fiddle/lib/fiddle/closure.rb
Normal file
17
ext/fiddle/lib/fiddle/closure.rb
Normal file
|
|
@ -0,0 +1,17 @@
|
|||
module Fiddle
|
||||
class Closure
|
||||
attr_reader :ctype
|
||||
attr_reader :args
|
||||
|
||||
class BlockCaller < Fiddle::Closure
|
||||
def initialize ctype, args, abi = Fiddle::Function::DEFAULT, &block
|
||||
super(ctype, args, abi)
|
||||
@block = block
|
||||
end
|
||||
|
||||
def call *args
|
||||
@block.call(*args)
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
5
ext/fiddle/lib/fiddle/function.rb
Normal file
5
ext/fiddle/lib/fiddle/function.rb
Normal file
|
|
@ -0,0 +1,5 @@
|
|||
module Fiddle
|
||||
class Function
|
||||
attr_reader :abi
|
||||
end
|
||||
end
|
||||
71
test/fiddle/helper.rb
Normal file
71
test/fiddle/helper.rb
Normal file
|
|
@ -0,0 +1,71 @@
|
|||
require 'minitest/autorun'
|
||||
require 'dl'
|
||||
require 'fiddle'
|
||||
|
||||
# FIXME: this is stolen from DL and needs to be refactored.
|
||||
require_relative '../ruby/envutil'
|
||||
|
||||
libc_so = libm_so = nil
|
||||
|
||||
case RUBY_PLATFORM
|
||||
when /cygwin/
|
||||
libc_so = "cygwin1.dll"
|
||||
libm_so = "cygwin1.dll"
|
||||
when /x86_64-linux/
|
||||
libc_so = "/lib64/libc.so.6"
|
||||
libm_so = "/lib64/libm.so.6"
|
||||
when /linux/
|
||||
libdir = '/lib'
|
||||
case [0].pack('L!').size
|
||||
when 4
|
||||
# 32-bit ruby
|
||||
libdir = '/lib32' if File.directory? '/lib32'
|
||||
when 8
|
||||
# 64-bit ruby
|
||||
libdir = '/lib64' if File.directory? '/lib64'
|
||||
end
|
||||
libc_so = File.join(libdir, "libc.so.6")
|
||||
libm_so = File.join(libdir, "libm.so.6")
|
||||
when /mingw/, /mswin/
|
||||
require "rbconfig"
|
||||
libc_so = libm_so = RbConfig::CONFIG["RUBY_SO_NAME"].split(/-/, 2)[0] + ".dll"
|
||||
when /darwin/
|
||||
libc_so = "/usr/lib/libc.dylib"
|
||||
libm_so = "/usr/lib/libm.dylib"
|
||||
when /kfreebsd/
|
||||
libc_so = "/lib/libc.so.0.1"
|
||||
libm_so = "/lib/libm.so.1"
|
||||
when /bsd|dragonfly/
|
||||
libc_so = "/usr/lib/libc.so"
|
||||
libm_so = "/usr/lib/libm.so"
|
||||
else
|
||||
libc_so = ARGV[0] if ARGV[0] && ARGV[0][0] == ?/
|
||||
libm_so = ARGV[1] if ARGV[1] && ARGV[1][0] == ?/
|
||||
if( !(libc_so && libm_so) )
|
||||
$stderr.puts("libc and libm not found: #{$0} <libc> <libm>")
|
||||
end
|
||||
end
|
||||
|
||||
libc_so = nil if !libc_so || (libc_so[0] == ?/ && !File.file?(libc_so))
|
||||
libm_so = nil if !libm_so || (libm_so[0] == ?/ && !File.file?(libm_so))
|
||||
|
||||
if !libc_so || !libm_so
|
||||
ruby = EnvUtil.rubybin
|
||||
ldd = `ldd #{ruby}`
|
||||
#puts ldd
|
||||
libc_so = $& if !libc_so && %r{/\S*/libc\.so\S*} =~ ldd
|
||||
libm_so = $& if !libm_so && %r{/\S*/libm\.so\S*} =~ ldd
|
||||
#p [libc_so, libm_so]
|
||||
end
|
||||
|
||||
Fiddle::LIBC_SO = libc_so
|
||||
Fiddle::LIBM_SO = libm_so
|
||||
|
||||
module Fiddle
|
||||
class TestCase < MiniTest::Unit::TestCase
|
||||
def setup
|
||||
@libc = DL.dlopen(LIBC_SO)
|
||||
@libm = DL.dlopen(LIBM_SO)
|
||||
end
|
||||
end
|
||||
end
|
||||
49
test/fiddle/test_closure.rb
Normal file
49
test/fiddle/test_closure.rb
Normal file
|
|
@ -0,0 +1,49 @@
|
|||
require_relative 'helper'
|
||||
|
||||
module Fiddle
|
||||
class TestClosure < Fiddle::TestCase
|
||||
def test_argument_errors
|
||||
assert_raises(TypeError) do
|
||||
Closure.new(TYPE_INT, TYPE_INT)
|
||||
end
|
||||
|
||||
assert_raises(TypeError) do
|
||||
Closure.new('foo', [TYPE_INT])
|
||||
end
|
||||
|
||||
assert_raises(TypeError) do
|
||||
Closure.new(TYPE_INT, ['meow!'])
|
||||
end
|
||||
end
|
||||
|
||||
def test_call
|
||||
closure = Class.new(Closure) {
|
||||
def call
|
||||
10
|
||||
end
|
||||
}.new(TYPE_INT, [])
|
||||
|
||||
func = Function.new(closure, [], TYPE_INT)
|
||||
assert_equal 10, func.call
|
||||
end
|
||||
|
||||
def test_returner
|
||||
closure = Class.new(Closure) {
|
||||
def call thing
|
||||
thing
|
||||
end
|
||||
}.new(TYPE_INT, [TYPE_INT])
|
||||
|
||||
func = Function.new(closure, [TYPE_INT], TYPE_INT)
|
||||
assert_equal 10, func.call(10)
|
||||
end
|
||||
|
||||
def test_block_caller
|
||||
cb = Closure::BlockCaller.new(TYPE_INT, [TYPE_INT]) do |one|
|
||||
one
|
||||
end
|
||||
func = Function.new(cb, [TYPE_INT], TYPE_INT)
|
||||
assert_equal 11, func.call(11)
|
||||
end
|
||||
end
|
||||
end
|
||||
19
test/fiddle/test_fiddle.rb
Normal file
19
test/fiddle/test_fiddle.rb
Normal file
|
|
@ -0,0 +1,19 @@
|
|||
require_relative 'helper'
|
||||
|
||||
class TestFiddle < Fiddle::TestCase
|
||||
def test_constants_match
|
||||
[
|
||||
:TYPE_VOID,
|
||||
:TYPE_VOIDP,
|
||||
:TYPE_CHAR,
|
||||
:TYPE_SHORT,
|
||||
:TYPE_INT,
|
||||
:TYPE_LONG,
|
||||
:TYPE_LONG_LONG,
|
||||
:TYPE_FLOAT,
|
||||
:TYPE_DOUBLE,
|
||||
].each do |name|
|
||||
assert_equal(DL.const_get(name), Fiddle.const_get(name))
|
||||
end
|
||||
end
|
||||
end
|
||||
66
test/fiddle/test_function.rb
Normal file
66
test/fiddle/test_function.rb
Normal file
|
|
@ -0,0 +1,66 @@
|
|||
require_relative 'helper'
|
||||
|
||||
module Fiddle
|
||||
class TestFunction < Fiddle::TestCase
|
||||
def setup
|
||||
super
|
||||
Fiddle.last_error = nil
|
||||
end
|
||||
|
||||
def test_default_abi
|
||||
func = Function.new(@libm['sin'], [TYPE_DOUBLE], TYPE_DOUBLE)
|
||||
assert_equal Function::DEFAULT, func.abi
|
||||
end
|
||||
|
||||
def test_argument_errors
|
||||
assert_raises(TypeError) do
|
||||
Function.new(@libm['sin'], TYPE_DOUBLE, TYPE_DOUBLE)
|
||||
end
|
||||
|
||||
assert_raises(TypeError) do
|
||||
Function.new(@libm['sin'], ['foo'], TYPE_DOUBLE)
|
||||
end
|
||||
|
||||
assert_raises(TypeError) do
|
||||
Function.new(@libm['sin'], [TYPE_DOUBLE], 'foo')
|
||||
end
|
||||
end
|
||||
|
||||
def test_call
|
||||
func = Function.new(@libm['sin'], [TYPE_DOUBLE], TYPE_DOUBLE)
|
||||
assert_in_delta 1.0, func.call(90 * Math::PI / 180), 0.0001
|
||||
end
|
||||
|
||||
def test_argument_count
|
||||
closure = Class.new(Closure) {
|
||||
def call one
|
||||
10 + one
|
||||
end
|
||||
}.new(TYPE_INT, [TYPE_INT])
|
||||
func = Function.new(closure, [TYPE_INT], TYPE_INT)
|
||||
|
||||
assert_raises(ArgumentError) do
|
||||
func.call(1,2,3)
|
||||
end
|
||||
assert_raises(ArgumentError) do
|
||||
func.call
|
||||
end
|
||||
end
|
||||
|
||||
def test_last_error
|
||||
func = Function.new(@libc['strcpy'], [TYPE_VOIDP, TYPE_VOIDP], TYPE_VOIDP)
|
||||
|
||||
assert_nil Fiddle.last_error
|
||||
str = func.call("000", "123")
|
||||
refute_nil Fiddle.last_error
|
||||
end
|
||||
|
||||
def test_strcpy
|
||||
f = Function.new(@libc['strcpy'], [TYPE_VOIDP, TYPE_VOIDP], TYPE_VOIDP)
|
||||
buff = "000"
|
||||
str = f.call(buff, "123")
|
||||
assert_equal("123", buff)
|
||||
assert_equal("123", str.to_s)
|
||||
end
|
||||
end
|
||||
end
|
||||
Loading…
Add table
Add a link
Reference in a new issue