1 files changed, 47 insertions, 0 deletions
diff --git a/include/dnsjit/lib/clock.lua b/include/dnsjit/lib/clock.lua
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+++ b/include/dnsjit/lib/clock.lua
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+-- 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.lib.clock
+-- Clock and time functions
+--   local clock = require("dnsjit.lib.clock")
+--   local sec, nsec = clock.monotonic()
+--
+-- Functions to get the time from system-wide clocks.
+module(...,package.seeall)
+
+require("dnsjit.lib.clock_h")
+local C = require("ffi").C
+
+Clock = {}
+
+-- Return the current seconds and nanoseconds (as a list) from the realtime
+-- clock.
+function Clock.realtime()
+    local ts = C.lib_clock_gettime("LIB_CLOCK_REALTIME")
+    return tonumber(ts.sec), tonumber(ts.nsec)
+end
+
+-- Return the current seconds and nanoseconds (as a list) from the monotonic
+-- clock.
+function Clock.monotonic()
+    local ts = C.lib_clock_gettime("LIB_CLOCK_MONOTONIC")
+    return tonumber(ts.sec), tonumber(ts.nsec)
+end
+
+-- clock_gettime (2)
+return Clock