89 lines
2.0 KiB
Lua
89 lines
2.0 KiB
Lua
-- absolute timer
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local fs_time if freeswitch then
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local api = require "resources.functions.api"
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fs_time = {
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now = function() return api:getTime() end;
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elapsed = function(t) return api:getTime() - t end;
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ms_to_time = function(ms) return ms end;
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time_to_ms = function(t) return t end;
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}
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end
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-- absolute timer
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local os_time = {
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now = function() return os.time() end;
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elapsed = function(t) return os.difftime(os.time(), t) end;
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ms_to_time = function(ms) return ms / 1000 end;
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time_to_ms = function(t) return t * 1000 end;
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}
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-- monotonic timer (not work on my test Debian system)
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local os_clock = {
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now = function() return os.clock() end;
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elapsed = function(t) return os.clock() - t end;
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ms_to_time = function(ms) return ms / 1000 end;
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time_to_ms = function(t) return t * 1000 end;
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}
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local timers = {
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freeswitch = fs_time;
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time = os_time;
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clock = os_clock;
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}
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local IntervalTimer = {} do
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IntervalTimer.__index = IntervalTimer
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function IntervalTimer.new(interval, timer)
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local o = setmetatable({}, IntervalTimer)
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o._interval = interval
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o._timer = timer and assert(timers[timer], "unknown timer: " .. timer) or os_time
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return o
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end
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function IntervalTimer:start()
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assert(not self:started())
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return self:restart()
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end
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function IntervalTimer:restart()
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self._begin = self._timer.now()
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return self
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end
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function IntervalTimer:started()
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return not not self._begin
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end
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function IntervalTimer:elapsed()
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assert(self:started())
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local e = self._timer.elapsed(self._begin)
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return self._timer.time_to_ms(e)
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end
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function IntervalTimer:rest()
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local d = self._interval - self:elapsed()
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if d < 0 then d = 0 end
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return d
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end
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function IntervalTimer:reset(interval)
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self._interval = interval
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if self._begin then self:restart() end
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return self
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end
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function IntervalTimer:stop()
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if self:started() then
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local d = self:elapsed()
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self._begin = nil
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return d
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end
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end
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end
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return {
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new = IntervalTimer.new;
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} |