### Home Classes Methods

### In Files

- lib/ffi/struct.rb
- lib/ffi/version.rb
- lib/ffi/union.rb
- lib/ffi/tools/types_generator.rb
- lib/ffi/tools/const_generator.rb
- lib/ffi/tools/generator.rb
- lib/ffi/tools/struct_generator.rb
- lib/ffi/struct_layout_builder.rb
- lib/ffi/enum.rb
- lib/ffi/variadic.rb
- lib/ffi/managedstruct.rb
- lib/ffi/types.rb
- lib/ffi/pointer.rb
- lib/ffi/io.rb
- lib/ffi/platform.rb
- lib/ffi/errno.rb
- lib/ffi/autopointer.rb
- ext/ffi_c/ffi.c

### Namespace

- MODULE FFI::DataConverter
- MODULE FFI::IO
- MODULE FFI::LastError
- MODULE FFI::Platform
- CLASS FFI::AbstractMemory
- CLASS FFI::ArrayType
- CLASS FFI::AutoPointer
- CLASS FFI::Buffer
- CLASS FFI::ConstGenerator
- CLASS FFI::DynamicLibrary
- CLASS FFI::Enum
- CLASS FFI::Enums
- CLASS FFI::Function
- CLASS FFI::FunctionType
- CLASS FFI::Generator
- CLASS FFI::ManagedStruct
- CLASS FFI::MemoryPointer
- CLASS FFI::NullPointerError
- CLASS FFI::PlatformError
- CLASS FFI::Pointer
- CLASS FFI::StrPtrConverter
- CLASS FFI::Struct
- CLASS FFI::StructByReference
- CLASS FFI::StructByValue
- CLASS FFI::StructGenerator
- CLASS FFI::StructLayout
- CLASS FFI::StructLayoutBuilder
- CLASS FFI::TypesGenerator
- CLASS FFI::Union
- CLASS FFI::VariadicInvoker

### Methods

- ::add_typedef
- ::errno
- ::errno=
- ::find_type
- ::type_size
- ::typedef

### Files

- Makefile
- LICENSE
- compile
- configure
- depcomp
- stamp-vti
- install-sh
- libtool-version
- mdate-sh
- missing

### Class/Module Index

Quicksearch

- FFI
- FFI::AbstractMemory
- FFI::ArrayType
- FFI::AutoPointer
- FFI::AutoPointer::CallableReleaser
- FFI::AutoPointer::DefaultReleaser
- FFI::AutoPointer::Releaser
- FFI::Buffer
- FFI::ConstGenerator
- FFI::ConstGenerator::Constant
- FFI::DataConverter
- FFI::DynamicLibrary
- FFI::DynamicLibrary::Symbol
- FFI::Enum
- FFI::Enums
- FFI::Function
- FFI::FunctionType
- FFI::Generator
- FFI::Generator::Task
- FFI::IO
- FFI::LastError
- FFI::ManagedStruct
- FFI::MemoryPointer
- FFI::NullPointerError
- FFI::Platform
- FFI::PlatformError
- FFI::Pointer
- FFI::StrPtrConverter
- FFI::Struct
- FFI::Struct::ManagedStructConverter
- FFI::StructByReference
- FFI::StructByValue
- FFI::StructGenerator
- FFI::StructGenerator::Field
- FFI::StructLayout
- FFI::StructLayout::Array
- FFI::StructLayout::Enum
- FFI::StructLayout::Field
- FFI::StructLayout::Function
- FFI::StructLayout::InnerStruct
- FFI::StructLayout::Mapped
- FFI::StructLayout::Number
- FFI::StructLayout::Pointer
- FFI::StructLayout::String
- FFI::StructLayoutBuilder
- FFI::TypesGenerator
- FFI::Union
- FFI::VariadicInvoker

No matching classes.

# FFI

Copyright (C) 2008-2010 Wayne Meissner

This file is part of ruby-ffi.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

- Redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

- Neither the name of the Ruby FFI project nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Copyright (C) 2009, 2010 Wayne Meissner Copyright (C) 2009 Luc Heinrich

This file is part of ruby-ffi.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

- Redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

- Neither the name of the Ruby FFI project nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Copyright (C) 2008, 2009 Wayne Meissner Copyright (C) 2009 Luc Heinrich

This file is part of ruby-ffi.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

- Redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

- Neither the name of the Ruby FFI project nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Copyright (C) 2008 Mike Dalessio

This file is part of ruby-ffi.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

- Redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

- Neither the name of the Ruby FFI project nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

see {file:README}

Copyright (C) 2008, 2009 Wayne Meissner

This file is part of ruby-ffi.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

- Redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

- Neither the name of the Ruby FFI project nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.#

Copyright (C) 2008-2010 Wayne Meissner

This file is part of ruby-ffi.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

- Redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

- Neither the name of the Ruby FFI project nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.#

Copyright (C) 2008-2010 Wayne Meissner Copyright (C) 2008 Mike Dalessio

This file is part of ruby-ffi.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

- Redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

- Neither the name of the Ruby FFI project nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

This module embbed type constants from {FFI::NativeType}.

### Constants

VERSION

### Public Class Methods

add_typedef(old, add) click to toggle source

(see FFI.typedef)

    # File lib/ffi/types.rb, line 45
    def self.add_typedef(old, add)
      typedef old, add
    end

errno() click to toggle source

@return (see FFI::LastError.error) @see FFI::LastError.error

    # File lib/ffi/errno.rb, line 34
    def self.errno
      FFI::LastError.error
    end

errno=(error) click to toggle source

@param error (see FFI::LastError.error=) @return (see FFI::LastError.error=) @see FFI::LastError.error=

    # File lib/ffi/errno.rb, line 40
    def self.errno=(error)
      FFI::LastError.error = error
    end

find_type(name, type_map = nil) click to toggle source

@param [Type, DataConverter, Symbol] name @param [Hash] type_map if nil, {FFI::TypeDefs} is used @return [Type] Find a type in `type_map` ({FFI::TypeDefs}, by default) from a type objet, a type name (symbol). If `name` is a {DataConverter}, a new {Type::Mapped} is created.

    # File lib/ffi/types.rb, line 56
    def self.find_type(name, type_map = nil)
      if name.is_a?(Type)
        name

      elsif type_map && type_map.has_key?(name)
        type_map[name]

      elsif TypeDefs.has_key?(name)
        TypeDefs[name]

      elsif name.is_a?(DataConverter)
        (type_map || TypeDefs)[name] = Type::Mapped.new(name)

      else
        raise TypeError, "unable to resolve type '#{name}'"
      end
    end

type_size(type) click to toggle source

@param type `type` is an instance of class accepted by {FFI.find_type} @return [Numeric] Get `type` size, in bytes.

    # File lib/ffi/types.rb, line 172
    def self.type_size(type)
      find_type(type).size
    end

typedef(old, add) click to toggle source

@param [Type, DataConverter, Symbol] old type definition used by {FFI.find_type} @param [Symbol] add new type definition's name to add @return [Type] Add a definition type to type definitions.

    # File lib/ffi/types.rb, line 40
    def self.typedef(old, add)
      TypeDefs[add] = self.find_type(old)
    end

[Validate]

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