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if not modules then modules = { } end modules ['trac-inf'] = {
version = 1.001,
comment = "companion to luat-lib.tex",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local format = string.format
local statusinfo, n, registered = { }, 0, { }
statistics = statistics or { }
statistics.enable = true
statistics.threshold = 0.05
-- timing functions
local clock = os.gettimeofday or os.clock
function statistics.hastimer(instance)
return instance and instance.starttime
end
function statistics.starttiming(instance)
if instance then
local it = instance.timing
if not it then
it = 0
end
if it == 0 then
instance.starttime = clock()
if not instance.loadtime then
instance.loadtime = 0
end
end
instance.timing = it + 1
end
end
function statistics.stoptiming(instance, report)
if instance then
local it = instance.timing
if it > 1 then
instance.timing = it - 1
else
local starttime = instance.starttime
if starttime then
local stoptime = clock()
local loadtime = stoptime - starttime
instance.stoptime = stoptime
instance.loadtime = instance.loadtime + loadtime
if report then
statistics.report("load time %0.3f",loadtime)
end
instance.timing = 0
return loadtime
end
end
end
return 0
end
function statistics.elapsedtime(instance)
return format("%0.3f",(instance and instance.loadtime) or 0)
end
function statistics.elapsedindeed(instance)
local t = (instance and instance.loadtime) or 0
return t > statistics.threshold
end
-- general function
function statistics.register(tag,fnc)
if statistics.enable and type(fnc) == "function" then
local rt = registered[tag] or (#statusinfo + 1)
statusinfo[rt] = { tag, fnc }
registered[tag] = rt
if #tag > n then n = #tag end
end
end
function statistics.show(reporter)
if statistics.enable then
if not reporter then reporter = function(tag,data,n) texio.write_nl(tag .. " " .. data) end end
-- this code will move
local register = statistics.register
register("luatex banner", function()
return string.lower(status.banner)
end)
register("control sequences", function()
return format("%s of %s", status.cs_count, status.hash_size+status.hash_extra)
end)
register("callbacks", function()
local total, indirect = status.callbacks or 0, status.indirect_callbacks or 0
return format("direct: %s, indirect: %s, total: %s", total-indirect, indirect, total)
end)
register("current memory usage", statistics.memused)
register("runtime",statistics.runtime)
-- --
for i=1,#statusinfo do
local s = statusinfo[i]
local r = s[2]()
if r then
reporter(s[1],r,n)
end
end
statistics.enable = false
end
end
function statistics.show_job_stat(tag,data,n)
texio.write_nl(format("%-15s: %s - %s","mkiv lua stats",tag:rpadd(n," "),data))
end
function statistics.memused() -- no math.round yet -)
local round = math.round or math.floor
return format("%s MB (ctx: %s MB)",round(collectgarbage("count")/1000), round(status.luastate_bytes/1000000))
end
if statistics.runtime then
-- already loaded and set
elseif luatex and luatex.starttime then
statistics.starttime = luatex.starttime
statistics.loadtime = 0
statistics.timing = 0
else
statistics.starttiming(statistics)
end
function statistics.runtime()
statistics.stoptiming(statistics)
return statistics.formatruntime(statistics.elapsedtime(statistics))
end
function statistics.formatruntime(runtime)
return format("%s seconds", statistics.elapsedtime(statistics))
end
function statistics.timed(action,report)
local timer = { }
report = report or logs.simple
statistics.starttiming(timer)
action()
statistics.stoptiming(timer)
report("total runtime: %s",statistics.elapsedtime(timer))
end
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