76 lines
2 KiB
Lua
76 lines
2 KiB
Lua
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-- Copyright (c) 2018-2021, OARC, Inc.
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-- All rights reserved.
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--
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-- This file is part of dnsjit.
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--
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-- dnsjit is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation, either version 3 of the License, or
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-- (at your option) any later version.
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--
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-- dnsjit is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
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-- dnsjit.input.zero
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-- Generate empty objects (/dev/zero)
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-- local input = require("dnsjit.input.zero").new()
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-- input:receiver(filter_or_output)
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-- input:run(1e6)
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--
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-- Input module for generating empty
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-- .I core.object.null
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-- objects, mostly used for testing.
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module(...,package.seeall)
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require("dnsjit.input.zero_h")
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local ffi = require("ffi")
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local C = ffi.C
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local t_name = "input_zero_t"
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local input_zero_t = ffi.typeof(t_name)
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local Zero = {}
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-- Create a new Zero input.
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function Zero.new()
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local self = {
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_receiver = nil,
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obj = input_zero_t(),
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}
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C.input_zero_init(self.obj)
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ffi.gc(self.obj, C.input_zero_destroy)
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return setmetatable(self, { __index = Zero })
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end
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-- Return the Log object to control logging of this instance or module.
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function Zero:log()
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if self == nil then
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return C.input_zero_log()
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end
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return self.obj._log
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end
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-- Set the receiver to pass objects to.
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function Zero:receiver(o)
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self.obj.recv, self.obj.ctx = o:receive()
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self._receiver = o
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end
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-- Return the C functions and context for producing objects.
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function Zero:produce()
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return C.input_zero_producer(), self.obj
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end
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-- Generate
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-- .I num
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-- empty objects and send them to the receiver.
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function Zero:run(num)
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C.input_zero_run(self.obj, num)
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end
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return Zero
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