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authorDaniel Baumann <daniel.baumann@progress-linux.org>2021-03-13 07:54:12 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2021-03-13 07:54:12 +0000
commit4754ed45b607e82450a5e31fea1da3ba61433b04 (patch)
tree3554490bdc003e6004f605abe41929cdf98b0651 /src/output/null.lua
parentInitial commit. (diff)
downloaddnsjit-4754ed45b607e82450a5e31fea1da3ba61433b04.tar.xz
dnsjit-4754ed45b607e82450a5e31fea1da3ba61433b04.zip
Adding upstream version 1.1.0+debian.upstream/1.1.0+debian
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/output/null.lua')
-rw-r--r--src/output/null.lua80
1 files changed, 80 insertions, 0 deletions
diff --git a/src/output/null.lua b/src/output/null.lua
new file mode 100644
index 0000000..b634c56
--- /dev/null
+++ b/src/output/null.lua
@@ -0,0 +1,80 @@
+-- Copyright (c) 2018-2021, OARC, Inc.
+-- All rights reserved.
+--
+-- This file is part of dnsjit.
+--
+-- dnsjit is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- (at your option) any later version.
+--
+-- dnsjit is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
+
+-- dnsjit.output.null
+-- Output to nothing (/dev/null)
+-- local output = require("dnsjit.output.null").new()
+--
+-- Output module for those that doesn't really like packets.
+module(...,package.seeall)
+
+require("dnsjit.output.null_h")
+local ffi = require("ffi")
+local C = ffi.C
+
+local t_name = "output_null_t"
+local output_null_t = ffi.typeof(t_name)
+local Null = {}
+
+-- Create a new Null output.
+function Null.new()
+ local self = {
+ _producer = nil,
+ obj = output_null_t(),
+ }
+ C.output_null_init(self.obj)
+ ffi.gc(self.obj, C.output_null_destroy)
+ return setmetatable(self, { __index = Null })
+end
+
+-- Return the Log object to control logging of this instance or module.
+function Null:log()
+ if self == nil then
+ return C.output_null_log()
+ end
+ return self.obj._log
+end
+
+-- Return the C functions and context for receiving objects.
+function Null:receive()
+ return C.output_null_receiver(), self.obj
+end
+
+-- Set the producer to get objects from.
+function Null:producer(o)
+ self.obj.prod, self.obj.ctx = o:produce()
+ self._producer = o
+end
+
+-- Retrieve all objects from the producer, if the optional
+-- .I num
+-- is a positive number then stop after that amount of objects have been
+-- retrieved.
+function Null:run(num)
+ if num == nil then
+ num = -1
+ end
+ C.output_null_run(self.obj, num)
+end
+
+-- Return the number of packets we sent into the void.
+function Null:packets()
+ return tonumber(self.obj.pkts)
+end
+
+return Null