--[[
	FFIopt Demo - A demo mod for FFIopt Minetest mod
	(c) Pierre-Yves Rollo

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU Lesser General Public License as published
	by the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program 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 Lesser General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
--]]

local profile={}

-- Profiling
local counters={}

function profile.init()
	counters = {}
end

function profile.start(counter)
	if counters[counter] == nil then
		counters[counter] = { start = nil, total = 0 }
	end

	counters[counter].start = os.clock()
end

function profile.stop(counter)
	counters[counter].total = counters[counter].total +
		os.clock() - counters[counter].start
	counters[counter].start = nil
end

function profile.show(logfct)
	logfct = logfct or print
	for name, counter in pairs(counters) do
		logfct(name..": "..string.format("%.2fms",counter.total*1000))
	end
end

ffiopt_demo.profile = profile