/usr/lib/ruby/vendor_ruby/ffi/types.rb is in ruby-ffi 1.9.6debian-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 | #
# Copyright (C) 2008-2010 Wayne Meissner
# Copyright (c) 2007, 2008 Evan Phoenix
#
# 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}
module FFI
# @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.
def self.typedef(old, add)
TypeDefs[add] = self.find_type(old)
end
# (see FFI.typedef)
def self.add_typedef(old, add)
typedef old, add
end
# @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.
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
# List of type definitions
TypeDefs.merge!({
# The C void type; only useful for function return types
:void => Type::VOID,
# C boolean type
:bool => Type::BOOL,
# C nul-terminated string
:string => Type::STRING,
# C signed char
:char => Type::CHAR,
# C unsigned char
:uchar => Type::UCHAR,
# C signed short
:short => Type::SHORT,
# C unsigned short
:ushort => Type::USHORT,
# C signed int
:int => Type::INT,
# C unsigned int
:uint => Type::UINT,
# C signed long
:long => Type::LONG,
# C unsigned long
:ulong => Type::ULONG,
# C signed long long integer
:long_long => Type::LONG_LONG,
# C unsigned long long integer
:ulong_long => Type::ULONG_LONG,
# C single precision float
:float => Type::FLOAT,
# C double precision float
:double => Type::DOUBLE,
# C long double
:long_double => Type::LONGDOUBLE,
# Native memory address
:pointer => Type::POINTER,
# 8 bit signed integer
:int8 => Type::INT8,
# 8 bit unsigned integer
:uint8 => Type::UINT8,
# 16 bit signed integer
:int16 => Type::INT16,
# 16 bit unsigned integer
:uint16 => Type::UINT16,
# 32 bit signed integer
:int32 => Type::INT32,
# 32 bit unsigned integer
:uint32 => Type::UINT32,
# 64 bit signed integer
:int64 => Type::INT64,
# 64 bit unsigned integer
:uint64 => Type::UINT64,
:buffer_in => Type::BUFFER_IN,
:buffer_out => Type::BUFFER_OUT,
:buffer_inout => Type::BUFFER_INOUT,
# Used in function prototypes to indicate the arguments are variadic
:varargs => Type::VARARGS,
})
class StrPtrConverter
extend DataConverter
native_type Type::POINTER
# @param [Pointer] val
# @param [] ctx
# @return [Array(String, Pointer)]
# Returns a [ String, Pointer ] tuple so the C memory for the string can be freed
def self.from_native(val, ctx)
[ val.null? ? nil : val.get_string(0), val ]
end
end
typedef(StrPtrConverter, :strptr)
# @param type +type+ is an instance of class accepted by {FFI.find_type}
# @return [Numeric]
# Get +type+ size, in bytes.
def self.type_size(type)
find_type(type).size
end
# Load all the platform dependent types
begin
File.open(File.join(Platform::CONF_DIR, 'types.conf'), "r") do |f|
prefix = "rbx.platform.typedef."
f.each_line { |line|
if line.index(prefix) == 0
new_type, orig_type = line.chomp.slice(prefix.length..-1).split(/\s*=\s*/)
typedef(orig_type.to_sym, new_type.to_sym)
end
}
end
typedef :pointer, :caddr_t
rescue Errno::ENOENT
end
end
|