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--[[
Copyright (c) 2019, Vsevolod Stakhov <vsevolod@highsecure.ru>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
]]--
--[[[
-- @module lua_ffi
-- This module contains ffi interfaces (requires luajit or lua-ffi)
--]]
local ffi
local exports = {}
if type(jit) == 'table' then
ffi = require "jit"
local NULL = ffi.new 'void*'
exports.is_null = function(o)
return o ~= NULL
end
else
local ret,result_or_err = pcall(require, 'ffi')
if not ret then
io.stderr:write('FFI support is required: please use LuaJIT or install lua-ffi')
os.exit(1)
end
ffi = result_or_err
-- Lua ffi
local NULL = ffi.NULL or ffi.C.NULL
exports.is_null = function(o)
return o ~= NULL
end
end
exports.dkim = require "lua_ffi/dkim"
return exports
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